CN211772904U - Central axis control device for suspension casting construction of linear bridge - Google Patents
Central axis control device for suspension casting construction of linear bridge Download PDFInfo
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- CN211772904U CN211772904U CN202020222526.5U CN202020222526U CN211772904U CN 211772904 U CN211772904 U CN 211772904U CN 202020222526 U CN202020222526 U CN 202020222526U CN 211772904 U CN211772904 U CN 211772904U
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Abstract
The utility model provides a central axis control device for suspension casting construction of a linear bridge, which relates to the technical field of suspension casting construction equipment of linear bridges, and comprises a host, wherein the host comprises a frame body, an adjusting structure and a laser light source; the adjusting structure and the laser light source are arranged on the frame body, and the laser light source can pitch in a vertical plane; the adjusting structure is used for adjusting the position of the laser light source so that the axis of the light of the laser light source is right above the calibration point on the central axis of the bridge. The utility model discloses axis controlling means of orthoscopic bridge suspension casting construction only needs once centering to be fixed, can accomplish a plurality of beam sections axis control on the bridge, need not to measure personnel and utilize the total powerstation to get into the roof beam body case indoor from top to bottom repeatedly and loft, and template installation central line and roof beam body axis are checked and are only needed the operation workman can accomplish; compared with the prior art, the time for occupying the measuring personnel is short, the labor intensity is reduced, the time and the labor are saved, and the safety of the measuring personnel is improved.
Description
Technical Field
The utility model belongs to the technical field of the construction equipment technique is watered in suspension of sharp bridge and specifically relates to a axis controlling means of construction is watered in suspension of sharp bridge.
Background
At present, in the suspension casting construction process of a linear bridge, when the axis deviation is controlled, on one hand, components such as a suspension basket anchor is firmly anchored, and hanging strips and the like are screwed and fastened firmly, so that the deviation of the axis of a suspension casting beam caused by the loosening phenomenon of the components such as the suspension basket, a template and the like is prevented. On the other hand, in the suspension casting construction process of the linear bridge, the upper beam body of each bridge pier is respectively cast, and each section of the beam body is required to be cast for multiple times by dividing a plurality of beam sections, so that the axes of the bridge piers are required to be consistent, and the axes of the beam sections formed by multiple casting are required to be consistent, so that the central axis of the beam body is prevented from deviating, and the strength of the bridge is further influenced.
In the prior art, the construction process of each bridge is roughly as follows: before a 0# beam section (the initial section) is constructed on a pier, a total station is adopted to loft out the central point of the beam section, and the installation axis control of a template is carried out through the central line point; and after the concrete of the 0# beam section is poured, removing the template of the 0# beam section, and lofting a central point on a top plate and an inner bottom plate of the box chamber of the poured 0# beam section by using a total station again to control the central axis of the central point and guide the central axis of the next beam section. And analogizing in sequence, each beam section needs to perform central axis lofting twice, namely, when the template of the current beam section is installed, the installation axis of the template of the current section needs to be determined at the pouring position of the current section, after the concrete of the current beam section is poured and the template is removed, the central axis of the current beam section needs to be determined again for checking, the central point of the next beam section can also be checked with the central point of the previous beam body, and the determination of the central axes of the two times needs to make a measurer repeatedly enter the beam body box room up and down to perform lofting by using a total station.
Therefore, in the process of constructing the bridge by suspension casting of the straight-line bridge in the prior art, a large amount of measuring personnel is needed, the labor intensity of manpower is high, and the measuring personnel can get on or off the bridge body for many times, so that certain dangerousness is realized.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a straight line bridge hangs axis controlling means of watering construction to solve among the prior art straight line bridge and hang the in-process of watering construction bridge, need a large amount of measuring personnel, and manpower intensity of labour is big, and the roof beam body about measuring personnel is many times, has certain dangerous technical problem.
The utility model provides a line bridge hangs axis controlling means of watering construction, axis controlling means includes the host computer, the host computer includes support body, adjustment structure and laser source;
the adjusting structure and the laser light source are arranged on the frame body, and the laser light source can pitch in a vertical plane; the adjusting structure is used for adjusting the position of the laser light source so that the light emitting axis of the laser light source is right above the calibration point on the central axis of the bridge.
Further, the support body comprises supporting legs and a first base, the length of the supporting legs is adjustable, the supporting legs are supported below the first base, the adjusting structure is arranged on the first base, and the laser light source is installed on the adjusting structure.
Further, the adjusting structure comprises a horizontal leveling unit, and the horizontal leveling unit comprises a second base and a horizontal leveling component;
the laser light source is installed on the second base, and the second base is installed on the first base through the horizontal leveling component.
Further, the horizontal leveling component comprises a plurality of adjusting screws, and the adjusting screws are respectively arranged in three directions of the center of the first base;
one end of the adjusting screw is connected with the first base, and the other end of the adjusting screw is connected with the second base.
Further, a circular level is arranged on the second base.
Further, the adjusting structure further comprises an angle adjusting unit, wherein the angle adjusting unit comprises a third base and a locking piece;
the laser light source is arranged on the second base through the third base, and the third base is rotatably connected with the second base so that the third base can drive the laser light source to rotate in a horizontal plane;
the locking piece is used for fixing the third base and the second base relatively when the third base rotates to the right position.
Furthermore, the second base protrudes towards the third base to form an installation shaft, the third base is provided with an installation hole, and the installation shaft penetrates through the installation hole;
the retaining member is horizontal hand wheel, be provided with the screw hole that the level extends on the third base, the threaded rod threaded connection of horizontal hand wheel is in the screw hole, just the threaded rod of horizontal hand wheel can with installation axle butt, so that the second base with third base relatively fixed.
Furthermore, a first length scale which is horizontally arranged is arranged on the third base, the middle of the first length scale is used as a zero point, and length scales are respectively arranged on two sides of the zero point;
the emitted light of the laser light source can pass through the zero point.
Further, the central axis control device further comprises an auxiliary mechanism, wherein the auxiliary mechanism comprises a bracket and a second length scale;
the support includes the base and installs branch on the base, the second length scale is installed on the branch, just the second length scale is relative the height-adjustable of base.
Further, a horizontal level is arranged on the second length scale.
The utility model provides a central axis control device for suspension casting construction of a linear bridge, which comprises a host, wherein the host comprises a frame body, an adjusting structure and a laser light source; the adjusting structure and the laser light source are arranged on the frame body, and the laser light source can pitch in a vertical plane; the adjusting structure is used for adjusting the position of the laser light source so that the light emitting axis of the laser light source is right above the calibration point on the central axis of the bridge. The utility model provides a line bridge hangs axis controlling means of watering construction, when using, confirm two calibration points at first, these two calibration points are located the axis that needs the construction bridge, install the support body above one of them calibration point, and later through adjusting the structure with the light emission axis of laser source adjust to be located directly over the calibration point, and later start laser source, make the transmitting end of laser source pitch, so as to adjust the light of laser source and hit on another calibration point, at this moment, the light that laser source sent can be in a vertical plane with the axis that needs the construction bridge, at this moment, guarantee that the horizontal position of laser source is fixed, because the straight line that laser source shines all is in a vertical plane with the axis that needs the construction bridge, so make the transmitting end of laser source pitch to suitable position relative support body, when the construction is pour every section of bridge, only the light of the laser light source needs to be referred to. The utility model discloses axis controlling means of orthoscopic bridge suspension casting construction utilizes the effect of laser light source's light, can be fast accurate provide the foundation for the axle of the construction of follow-up every section beam section, and because be hollow block on the present beam section, so laser light source's light can pass the beam section of construction earlier and provide the basis for confirming the axle for the beam section that does not have the construction, only need once centering fixed, can accomplish the axis control of a plurality of beam sections on the bridge, need not that the survey crew utilizes the total powerstation to repeatedly get into the roof beam body case indoor from top to bottom and loft, template installation central line and roof beam body axis are checked and are only needed the operation workman and can accomplish; compared with the prior art, the time for occupying the measuring personnel is short, the labor intensity is reduced, the time and the labor are saved, and the safety of the measuring personnel is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a front view of a main machine of a center axis control device for suspension casting construction of a linear bridge according to an embodiment of the present invention;
fig. 2 is a side view of a main machine of a central axis control device for suspension casting construction of a linear bridge according to an embodiment of the present invention;
fig. 3 is a schematic view of an auxiliary mechanism of a central axis control device for suspension casting construction of a linear bridge according to an embodiment of the present invention;
fig. 4 is a schematic view of a central axis control device for suspension casting construction of a linear bridge provided in an embodiment of the present invention during a single pier construction process;
fig. 5 is an application schematic diagram of the central axis control device for the suspension casting construction of the linear bridge between two piers provided by the embodiment of the utility model.
Icon: 1-a host; 110-a frame body; 111-legs; 112-a first base; 120-an adjustment structure; 121-horizontal leveling unit; 1211-a second base; 1212-adjusting the helix; 1213-mounting the shaft; 122-an angle adjustment unit; 1221-a third base; 1222-horizontal hand wheel; 130-laser light source; 140-circular level; 150-a first length scale; 160-a support bar; 161-pitch axis; 2-an auxiliary mechanism; 210-a scaffold; 211-a base; 212-a strut; 2121-sliding track; 2112-adjusting the anchor bolt; 220-a second length scale; 230-a horizontal level; 3-a controller; 4-bridge pier; a-0# beam section; b-1# beam section.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the process of constructing the bridge by suspension casting of the straight bridge in the prior art, a large amount of manpower is needed, the labor intensity of the manpower is high, and operators can get on and off the bridge body for many times, so that certain dangerousness is realized; meanwhile, the total station is occupied; the measurement and control effect is best when a measurer is present, and the process control is lacked.
As shown in fig. 1 to 5, the present embodiment provides a central axis control device for suspension casting construction of a linear bridge, including a main machine 1, where the main machine 1 includes a frame body 110, an adjusting structure 120, and a laser light source 130. The adjustment structure 120 and the laser light source 130 are mounted on the frame 110, and the laser light source 130 can be tilted in a vertical plane with respect to the frame 110. The adjusting structure 120 is used for adjusting the position of the laser light source 130 so that the light emitting axis of the laser light source 130 is directly above the calibration point.
The calibration point is a point on the central axis of the bridge and can be obtained by measuring and lofting through a total station. The laser light source 130 may be a laser transmitter, which emits light that should be visible light; the laser light source 130 can be understood as a light source having a good directivity. The central axis of the pier 4 refers to a central axis of the pier 4 in the width direction, which extends along the length direction of the pier 4 and corresponds to the entire pier 4, and is a plane perpendicular to the ground. Correspondingly, the central axis of each beam section refers to the central axis of the beam section in the width direction, and the central axis of the bridge refers to the central axis of the bridge in the width direction.
The laser source 130 can be tilted in a vertical plane, that is, the laser source 130 can rotate in the vertical plane with a horizontal axis as a rotation axis, so that the emitting end of the laser source 130 moves up and down in the vertical plane to change the inclination angle of the axis of the light of the laser source. The axis of light emission of the laser light source 130 being directly above the index point means that the axis of the light emitting element within the laser light source 130 is located directly above the index point.
When the central axis control device for suspension casting construction of a linear bridge provided by this embodiment is used, firstly, two calibration points are determined, the two calibration points are located on the central axis of a bridge to be constructed, the frame body 110 is installed above one of the calibration points, then the light emitting axis of the laser source 130 is adjusted to be right above the calibration point through the adjusting structure 120, then the laser source 130 is started to tilt the emitting end of the laser source 130, so as to adjust the light of the laser source 130 to strike another calibration point, at this time, the light emitted by the laser source 130 can be in a vertical plane with the central axis of the bridge to be constructed, at this time, it is ensured that the horizontal position of the laser source 130 is fixed, then the emitting end of the laser source 130 is tilted to a proper position relative to the frame body 110, because the straight line irradiated by the laser source 130 and the central axis of the bridge to be constructed are in a vertical plane, therefore, when each beam section is constructed and poured, only the light of the laser light source 130 needs to be referred to.
This embodiment axle controlling means of orthoscopic bridge construction of watering, the effect of the light of laser light source 130 is utilized, can be fast accurate for the follow-up axle of every section of beam section construction confirms and provide the basis, that is, the light that launches of laser light source 130 is located the axis of every section of beam section promptly, and because be hollow block on the current beam section, so the light of laser light source 130 can pass the beam section of first construction, for the beam section that does not construct provides the definite basis of axle, only need once centering fixed, can accomplish the construction of a plurality of beam sections of bridge, do not need surveyor's repeated entering roof beam body incasement from top to bottom to utilize the total powerstation to loft, compare prior art, required survey crew is less, and surveyor's intensity of labour has been reduced, time saving and labor saving, surveyor's construction safety has been improved.
In this embodiment, the laser light source 130, that is, the laser emitter, may be turned on by a remotely disposed controller 3, the controller 3 is connected to the laser emitter by a wire, and the controller 3 may be a simple power switch or the like.
Generally, considering that the height of a bridge is generally high, in order to facilitate that the central axis control device for the suspension casting construction of the straight bridge of the embodiment can be installed at a proper height, the central axis of the 0# beam section a is generally found out through a total station lofting, after the 0# beam section a is constructed and the template of the 0# beam section a is detached, two calibration points are lofted on the bottom plate of the 0# beam section a by using the total station, and then the central axis control device for the suspension casting construction of the straight bridge of the embodiment is installed on the bottom plate of the 0# beam section a. Because the height of 0# beam section A is almost the same with the axis of the following 1# beam section B, 2# beam section, … … and N # beam section, after the 0# beam section A is constructed first, the central axis control device for the suspension casting construction of the straight-line bridge of the embodiment is installed on the bottom plate of the 0# beam section A, the position accuracy of the central axis of the bridge can be ensured, so that the basis is provided for the construction of the following beam section conveniently, wherein N in the N # beam section is the number of the beam sections of one bridge pier 4.
Usually, the bottom plate of the 0# beam section a refers to the bottom plate of the hollow block near the top of the 0# beam section a and at the center of the width direction of the bottom plate, because the central axes of the 0# beam section a and the subsequent 1# beam section B, 2# beam section, … …, N # beam section are consistent, the hollow position of the 0# beam section a and the hollow positions of the subsequent 1# beam section B, 2# beam section, … …, N # beam section are also corresponding, so when the central axis control device for the line bridge suspension casting construction of the embodiment is installed on the bottom plate of the 0# beam section a, the light of the laser source 130 can sequentially pass through the hollow gaps of the subsequent beam sections, so as to provide a basis for determining the central axis for the next constructed beam section.
As shown in fig. 1 or 2, as a specific form of the central axis control device for the suspension casting construction of the linear bridge according to the embodiment, the frame body 110 includes a leg 111 and a first base 112, the length of the leg 111 is adjustable, the leg 111 is supported below the first base 112, the adjusting structure 120 is disposed on the first base 112, and the laser source 130 is mounted on the adjusting structure 120.
Specifically, the number of the legs 111 may be plural, and the number of the legs 111 is preferably three in consideration of cost and stability, the three legs 111 are respectively connected to the lower portion of the first base 112 from three directions, and the lower ends of the three legs 111 are all inclined outward. Each leg 111 may be in the form of a telescopic rod, and when the length of the leg 111 is adjusted in place, the length of the leg 111 can be fixed. The telescopic rods are conventional, and the mutual locking can also adopt conventional technology, for example, the form of the rods matching with the positioning bolts, etc., and the details are not described herein.
It will be appreciated that the length of the legs 111 is adjustable, such that the height of the first base 112, and thus the height of the laser source 130, is adjustable, to facilitate adjustment of the height of the laser source 130 as desired.
The adjusting structure 120 includes a horizontal leveling unit 121 and an angle adjusting unit 122, the horizontal leveling unit includes a second base 1211 and a horizontal leveling component, the angle adjusting unit 122 includes a third base 1221 and a locking component, the second base 1211 is mounted on the first base 112 through the horizontal leveling component, the laser source 130 is mounted on the second base 1211 through the third base 1221, and the third base 1221 is rotatably connected to the second base 1211, so that the third base 1221 can drive the laser source 130 to rotate in a horizontal plane; the locking member is used to fix the third base 1221 relative to the second base 1211 when the third base 1221 is rotated into position. The third base 1221 is provided with two support rods 160 arranged oppositely, a horizontal pitch axis 161 is arranged between the two support rods 160, the laser source 130 is mounted on the pitch axis 161, and the laser source 130 can pitch with the pitch axis 161 as a rotation axis.
Specifically, the horizontal leveling assembly includes a plurality of adjusting screws 1212, and the adjusting screws 1212 are respectively disposed in three directions of the center of the first base 112, where one or more adjusting screws 1212 are disposed in one direction in the three directions, in this embodiment, one adjusting screw 1212 is disposed in each direction, and a connection line of the 3 adjusting screws 1212 in different orientations is disposed in an equilateral triangle, where the center of the first base 112 and the center of the equilateral triangle are on the same vertical line. The adjusting screw 1212 may also be understood as an adjusting screw having one end connected to the first base 112, the other end of the adjusting screw 1212 connected to the second base 1211, and the adjusting screw 1212 threadedly connected to the first base 112 and/or the second base 1211. That is, the adjusting screw 1212 may be screwed with the first base 112, and the other end is fixedly connected with the second base 1211; or the adjusting screw 1212 may be threadedly coupled to the second base 1211 and the other end fixedly coupled to the first base 112; alternatively, the adjustment screw 1212 is threaded onto both the first base 112 and the second base 1211 to adjust the height of the second base 1211 at different orientations by rotation of the adjustment screw 1212, such that the second base 1211 is leveled.
It should be noted that the adjusting screw 1212 may also be in a form that both ends are fixedly connected to the first base and the second base, and the corresponding adjusting screw 1212 should be a structure that two sections are screwed together.
In order to observe whether the second base 1211 is horizontal, the circular level 140 is further disposed on the second base 1211, and the circular level 140 is a level provided with a circular bubble, and the structure thereof belongs to the conventional technology.
To facilitate alignment with the calibration point, the first base 112, the second base 1211, and the third base 1221 are respectively hollow or transparent at the center corresponding to the length of the laser light source 130, so that the calibration point can be viewed from above and below. Specifically, the third base 1221 may be an existing conventional aligner, or an existing aligner may be mounted on the third base 1221, the middle of the aligner is of a transparent structure, a cross line is disposed in the middle of the aligner, and an intersection point of the cross line is aligned with the center of the laser light source 130.
As a specific connection form capable of horizontally rotating, the second base 1211 protrudes with a mounting shaft 1213 facing the third base 1221, and the third base 1221 is provided with a mounting hole through which the mounting shaft 1213 passes. The retaining member is a horizontal hand wheel 1222, a threaded hole extending horizontally is formed in the third base 1221, a threaded rod of the horizontal hand wheel 1222 is in threaded connection with the threaded hole, and the threaded rod of the horizontal hand wheel 1222 can be abutted to the mounting shaft 1213, so that the second base 1211 and the third base 1221 are fixed relatively.
The concrete steps of the adjustment structure 120 of the center axis control device for the suspension casting construction of the linear bridge of the embodiment to the laser light source 130 are as follows. Firstly, the frame body 110 is placed on the bottom plate of the 0# beam section a, the laser source 130, namely, the laser emitter, is fixed with the third base 1221 and the second base 1211 as a whole, and then the whole structure is installed on the adjusting screw 1212 of the first base 112 of the frame body 110; then, the emitting end of the laser emitter faces downwards (as shown in fig. 1), the laser generator is opened, and the optical point of the laser generator is aligned with the lofted calibration point of the total station. Then, level adjustment is started: firstly, the adjusting frame body 110 moves to perform rough leveling (generally, only the length or the position of two supporting legs 111 of the frame body 110 is adjusted); then, the circular level 140 is leveled, specifically, two adjusting screws 1212 on the first base 112 are adjusted to center the circular level 140. The laser generator is then rotated 90 ° in the horizontal plane by rotating the third base 1221 relative to the mounting shaft 1213, and the third adjustment screw 1212 is adjusted to center the vial and complete the leveling. Then, the laser generator is rotated horizontally at will by an angle to see the deviation of the bubble in the circular level 140, and the device is verified to be horizontal. If not, the above-described operation is repeated until the bubble of the circular level 140 is centered in any direction, and the second base 1211 is considered to be horizontal, and the corresponding laser transmitter is horizontally mounted on the second base 1211 at this time. After leveling, the alignment of the laser emitter is observed, and if the alignment is not achieved, the centering operation (which includes the rotation of the third base 1221 relative to the mounting shaft 1213 and the horizontal movement of the horizontal handwheel 1222 pushing the third base 1221) is performed again until the laser emitter is aligned with the index point. Alignment of the light of the laser emitter and the calibration point can be determined by observing whether the intersection point of the cross line of the centering device on the third base 1221 and the calibration point below the centering device are aligned in the vertical direction. After the light of the laser emitter is aligned with the calibration point, the movement of the bubble in the circular level 140 is checked again, and if the bubble is deviated, the horizontal adjustment and centering steps are repeated. When the horizontal adjustment and centering steps are satisfied, the laser emitter is turned on, the laser emitter is rotated along the pitch shaft 161, the emitting light of the laser emitter is aligned with another calibration point outside the installation position of the laser emitter, and the horizontal hand wheel 1222 is locked, so that the orientation of the laser emitter is completed.
Because, in the suspension casting construction process of the linear bridge, a plurality of bridge piers 4 are often constructed synchronously, a plurality of central axis control devices for the suspension casting construction of the linear bridge can be used together, each central axis control device for the suspension casting construction of the linear bridge is installed on the No. 0 beam section A of one bridge pier 4, and because the bridge piers 4 are overlapped with the central axis of the bridge, the central axis control devices for the suspension casting construction of the cast-in-place beam sections of the corresponding linear bridge are also sequentially arranged along the central axis of the bridge. The central axis control devices for the suspension casting construction of the linear bridges are sequentially arranged, and light rays emitted by the central axis control devices for the suspension casting construction of the linear bridges on the 0# beam section A of the previous bridge pier 4 can irradiate a first length scale on a host of the central axis control devices for the suspension casting construction of the linear bridges on the 0# beam section A of the next bridge pier 4, so that the central axes of the two bridge piers 4 are calibrated to be consistent in the construction process.
In order to conveniently adjust the position of the central axis control device for the suspended casting construction of each linear bridge as required in the synchronous construction process of a plurality of piers 4, a first length scale 150 horizontally arranged is arranged on the third base 1221 of the central axis control device for the suspended casting construction of each linear bridge, the middle of the first length scale 150 is used as a zero point, length scales are respectively arranged on two sides of the zero point, and light emitted by each laser source 130 can pass through the zero point of the first length scale 150 on the frame body 110.
That is, the zero point of the first length scale 150 and the center of the laser light source 130 in the width direction (i.e., the extending direction of the first length scale) are aligned up and down, so that the light emitted from the laser light source 130 can pass through the zero point of the first length scale 150 when the emitting end thereof faces vertically downward. When the laser light source 130 of the center axis control device for the straight line bridge suspension casting construction on the 0# beam section A of the previous bridge pier 4 emits light to irradiate the first length scale 150 of the center axis control device for the straight line bridge suspension casting construction on the 0# beam section A of the next bridge pier 4, if the light is aligned with the zero point of the first length scale 150 of the center axis control device for the straight line bridge suspension casting construction on the 0# beam section A of the next bridge pier 4, the center axis control device for the straight line bridge suspension casting construction on the 0# beam section A of the next bridge pier 4 is positioned on the center axis of the bridge, if the light deviates, the center axis control device for the straight line bridge suspension casting construction on the 0# beam section A of the next bridge pier can be moved in the opposite direction according to the deviation scale of the light relative to the zero point of the first length scale 150 of the center axis control device for the straight line bridge suspension casting construction on the next bridge pier 4, and (4) finishing.
In the construction process of each section of beam section behind 0# beam section a of each pier 4, in order to facilitate the determination of the central axis of the next beam section, the central axis control device for the suspension casting construction of the straight bridge of the embodiment further comprises an auxiliary mechanism 2, wherein the auxiliary mechanism 2 comprises a support 210, and a second length scale 220 horizontally arranged is arranged on the support 210.
The auxiliary mechanism 2 and the main machine 1 are independently arranged, and the auxiliary mechanism 2 is arranged on a bottom plate in a chamber of a beam section to be constructed. When the device is used specifically, after a frame body 110 of a central axis control device for straight bridge suspension casting construction is installed on a No. 0 beam section A, a support 210 of an auxiliary mechanism 2 is placed on a bottom plate position of a No. 1 beam section B, then light of a laser source 130 irradiates the auxiliary mechanism 2, the light spot of the laser source 130 irradiating the auxiliary mechanism 2 is on the central axis of the No. 1 beam section B, a hanging line is hung on the light spot of the auxiliary mechanism 2, the corresponding point position is the central axis point position of the bridge, and the template of the No. 1 beam section B is constructed by taking a hanging pendant as the basis; and after the construction of the template of the 1# beam section B is finished, the auxiliary mechanism 2 is moved away, and the 1# beam section B is poured. After the construction of the 1# beam section B is completed, the auxiliary mechanism 2 is placed on the ground of the 2# beam section, the light of the laser source 130 passes through the 1# beam section B and irradiates the auxiliary mechanism 2, and the construction scheme same as that of the 1# beam section B is adopted, and so on.
In a preferred embodiment, the bracket 210 includes a base 211 and a rod 212 mounted on the base 211, the second length scale 220 is mounted on the rod 212, and the height of the second length scale 220 relative to the base 211 is adjustable.
As shown in fig. 3, the base 211 includes three legs, one end of which is connected and the other end extends away from each other to form a stable structure. Strut 212 may be a telescopic strut 212 to adjust the height of second length scale 220 by the length of strut 212, or as shown in fig. 3, second length scale 220 is slidably connected to a sliding track 2121 of strut 212, and the height of strut 212 is adjusted by sliding second length scale 220 relative to strut 212 and is fixed by adjusting fixing bolt 2112 when adjusted in place.
In order to observe whether the second length scale 220 is horizontal, a horizontal level 230 is further disposed on the second length scale 220, and the horizontal level 230 is also a level which is provided with air bubbles and can move horizontally.
The specific operation steps of the center axis control device for the suspension casting construction of the linear bridge of the embodiment are as follows:
1) after the concrete of the No. 0 beam section A is poured and the formwork is removed, the total station is firstly used for lofting two central points on a bottom plate of the total station to be used as two calibration points, then the main machine 1 is fixed on one of the calibration points, after the main machine is roughly centered and leveled by the extension and contraction of the supporting legs 111, the centering device, the adjusting screw 1212 and the horizontal hand wheel 1222 are used for accurately leveling and centering (like the total station, the process needs to be repeated for a plurality of times).
2) The laser transmitter is turned on and the horizontal hand wheel 1222 is locked to prevent the device from moving and rotating in the horizontal direction when the light is directed to another index point. The principle that two points form a straight line is utilized, and the direction of light rays emitted by the laser emitter is the direction of the central axis of the beam body.
3) In the construction process of the same pier 4, when subsequent beam section formwork installation and axis checking are required, construction workers (non-measuring personnel, and measuring personnel are measuring technicians with the use skills of a total station) perform reference implementation by using light emitted by a laser emitter as a central axis. As shown in fig. 4, the auxiliary mechanism 2 in this embodiment is erected substantially on the center line of the beam body, the fixing bolt 2112 is loosened, the height of the second length scale 220 is adjusted so that the light from the laser emitter can be irradiated on the second length scale, and the scale is adjusted to be horizontal and fixed according to the display of the level gauge 230. And hanging the line pendant at the light irradiation position of the second length scale, and drawing a cross mark by red paint, wherein the corresponding position after the line pendant is stabilized is the central axis point position of the beam body.
4) And (4) carrying out template installation and beam body central axis checking by using the central points marked by the cross.
As shown in fig. 5, during the construction correction process between different piers 4, that is, when the central axis of the upper beam section of two piers 4 needs to be checked, the laser emitter is adjusted by rotating up and down to irradiate the light on the first length scale 150 on the opposite side main frame 1, and the displayed deviation is the central axis deviation, so that the adjustment is performed accordingly.
The central axis control device for the suspension casting construction of the linear bridge in the embodiment utilizes the principle of 'two points and one line', and light rays emitted by the laser source 130 can represent the central axis of a beam body. The second length scale of the auxiliary mechanism 2 can accurately indicate the hanging position of the line drop after being leveled, and the accuracy of the axle wire position of the determined beam section is ensured. Meanwhile, the device can also be used for checking the central axis of the upper beam section of the two piers, and the first length scale on the main machine 1 can display the deviation value of the central axis to guide an operator to adjust the central axis. The utilization of the central axis control device for the suspension casting construction of the linear bridge of the embodiment has the advantages that the total station is used for a few times, the total station occupies less resources, measuring personnel do not need to repeatedly go up and down and enter a beam section box chamber to measure, checking of the central line of the template installation and the central axis of the beam body can be completed only by common construction workers, measurement and control checking can be performed at any time in the process, process control is emphasized more, and waste of manpower and equipment is reduced.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. The central axis control device for the suspension casting construction of the linear bridge is characterized by comprising a host, wherein the host comprises a frame body, an adjusting structure and a laser light source;
the adjusting structure and the laser light source are arranged on the frame body, and the laser light source can pitch in a vertical plane; the adjusting structure is used for adjusting the position of the laser light source so that the light ray emitting axis of the laser light source is right above the calibration point on the central axis of the bridge.
2. The central axis control device for the suspension casting construction of the linear bridge according to claim 1, wherein the frame body comprises a leg and a first base, the length of the leg is adjustable, the leg is supported below the first base, the adjusting structure is arranged on the first base, and the laser light source is mounted on the adjusting structure.
3. The central axis control device for the suspension casting construction of the linear bridge according to claim 2, wherein the adjusting structure comprises a horizontal leveling unit, and the horizontal leveling unit comprises a second base and a horizontal leveling component;
the laser light source is installed on the second base, and the second base is installed on the first base through the horizontal leveling component.
4. The central axis control device for the suspension casting construction of the linear bridge according to claim 3, wherein the horizontal leveling component comprises a plurality of adjusting screws, and the adjusting screws are respectively arranged in three directions of the center of the first base;
one end of the adjusting screw is connected with the first base, and the other end of the adjusting screw is connected with the second base.
5. The central axis control device for the suspension casting construction of the linear bridge according to claim 3 or 4, wherein a circular level is arranged on the second base.
6. The central axis control device for the suspension casting construction of the linear bridge according to claim 3 or 4, wherein the adjusting structure further comprises an angle adjusting unit, and the angle adjusting unit comprises a third base and a locking member;
the laser light source is arranged on the second base through the third base, and the third base is rotatably connected with the second base so that the third base can drive the laser light source to rotate in a horizontal plane;
the locking piece is used for fixing the third base and the second base relatively when the third base rotates to the right position.
7. The device for controlling the central axis of the suspension casting construction of the linear bridge as claimed in claim 6, wherein the second base is protruded with an installation shaft facing the third base, the third base is provided with an installation hole, and the installation shaft is inserted into the installation hole;
the retaining member is horizontal hand wheel, be provided with the screw hole that the level extends on the third base, the threaded rod threaded connection of horizontal hand wheel is in the screw hole, just the threaded rod of horizontal hand wheel can with installation axle butt, so that the second base with third base relatively fixed.
8. The central axis control device for the suspension casting construction of the linear bridge according to claim 6, wherein a first length scale which is horizontally arranged is arranged on the third base, the middle of the first length scale is taken as a zero point, and length scales are correspondingly arranged on two sides of the zero point;
the emitted light of the laser light source can pass through the zero point.
9. The central axis control device for the suspension casting construction of the linear bridge according to claim 1, characterized in that the central axis control device further comprises an auxiliary mechanism, wherein the auxiliary mechanism comprises a bracket and a second length scale;
the support includes the base and installs branch on the base, the second length scale is installed on the branch, just the second length scale is relative the height-adjustable of base.
10. The central axis control device for the suspension casting construction of the linear bridge according to claim 9, wherein a horizontal level is arranged on the second length scale.
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| CN202020222526.5U CN211772904U (en) | 2020-02-27 | 2020-02-27 | Central axis control device for suspension casting construction of linear bridge |
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| CN202020222526.5U CN211772904U (en) | 2020-02-27 | 2020-02-27 | Central axis control device for suspension casting construction of linear bridge |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111206508A (en) * | 2020-02-27 | 2020-05-29 | 中交一公局海威工程建设有限公司 | Method and device for controlling central axis of suspension casting construction of linear bridge |
| CN113091702A (en) * | 2021-05-16 | 2021-07-09 | 河南和兴工程建设有限公司 | Road and bridge settlement difference real-time monitoring system and method thereof |
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2020
- 2020-02-27 CN CN202020222526.5U patent/CN211772904U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111206508A (en) * | 2020-02-27 | 2020-05-29 | 中交一公局海威工程建设有限公司 | Method and device for controlling central axis of suspension casting construction of linear bridge |
| CN111206508B (en) * | 2020-02-27 | 2024-11-05 | 中交一公局集团有限公司 | Central axis control method and device for suspension casting construction of linear bridge |
| CN113091702A (en) * | 2021-05-16 | 2021-07-09 | 河南和兴工程建设有限公司 | Road and bridge settlement difference real-time monitoring system and method thereof |
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Effective date of registration: 20201119 Address after: 100024 Beijing, Guanzhuang, Chaoyang District, Zhou Patentee after: CHINA FIRST HIGHWAY ENGINEERING Co.,Ltd. Patentee after: HAIWEI ENGINEERING CONSTRUCTION CO LTD OF FIRST HIGHWAY ENGINEERING Co.,Ltd. OF CCCC Address before: 101100 Beijing City, Tongzhou District Road No. 568 Building No. 1 Xu Patentee before: HAIWEI ENGINEERING CONSTRUCTION CO LTD OF FIRST HIGHWAY ENGINEERING Co.,Ltd. OF CCCC |