CN217083762U - Visual detection device for positioning and verticality adjusting of concrete filled steel tube stand column - Google Patents
Visual detection device for positioning and verticality adjusting of concrete filled steel tube stand column Download PDFInfo
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- CN217083762U CN217083762U CN202220742872.5U CN202220742872U CN217083762U CN 217083762 U CN217083762 U CN 217083762U CN 202220742872 U CN202220742872 U CN 202220742872U CN 217083762 U CN217083762 U CN 217083762U
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Abstract
Visual detection device that hangs down is transferred in steel pipe concrete stand location belongs to geotechnical engineering field operation and monitoring technology field, and the target board is in steel stand bottom. The centering support is arranged at the top end of the steel upright post. The flange at the bottom of the steel upright post is provided with a hollow plate as a target plate, and a target center is arranged in the middle of the target plate. A north arrow is arranged beside the magnetic head. The inner end of the support arm of the centering support and the centering flange plate are provided with a hinge device and a fixing device. The lower surface of the outer end of the support arm is provided with a support arm clamping groove which corresponds to the edge of the steel upright post. The three connecting rods form a triangle, and the ends of the two connecting rods are connected through corresponding centering bolts. Each support arm is provided with a strip-shaped jack, and a centering bolt is inserted into the strip-shaped jack. A pulley is arranged at the central hole of the centering flange plate, and a camera is arranged in the visual drooping pendant. The drop weight bearing wire is wound around the pulley. The opening at the lower end of the drooping pendant is provided with a sight bead. Put down and hang down and look for the centre of a target with the sight, the utility model discloses according to the absolute vertically characteristics of line of action of gravity, the error value is invariable and not increase along with high increase, and is more accurate.
Description
Technical Field
The utility model belongs to the technical field of geotechnical engineering field operation and monitoring, especially an installation straightness detection and adjustment method and device that hangs down for concrete filled steel tube stand mainly is applicable to the construction and the detection of subway station foundation ditch reverse construction method permanent stand of concrete filled steel tube.
Background
During operation of the concrete filled steel tube column in the subway station structure, a drilling machine is used for drilling holes at a preset position on the ground, then the steel tubes are hoisted and inserted into the holes, and after the positions and verticality of the steel tubes are adjusted, the steel tubes are fixed and poured with concrete. When the subway foundation pit is excavated, the concrete-filled steel tube column is used as a temporary structure and is used as a permanent structure of a station after the excavation operation is finished. Therefore, the positioning precision and the verticality of the steel plate during operation and installation are extremely high. The specifications require that its perpendicularity deviation must not exceed one thousandth of its length and at the same time must not exceed 15 mm. At present, the existing method is to install a plurality of electronic gyroscopes at the side wall of a column body of an upright column, and the installation verticality is monitored through the electronic gyroscopes. However, this approach has the disadvantage that the mounting accuracy of the gyroscope is highly required and the deviation value is amplified as the length increases. At present, the concrete-filled steel tube column of a subway station in operation has a great difficulty in the case that the length is 50 meters, because the current monitoring and verticality adjusting means is only suitable for the steel tubes with short length (for example, 10 meters). The vertical precision of a long steel pipe upright post structure in operation is difficult to ensure.
SUMMERY OF THE UTILITY MODEL
To the deficiency of the prior art, an object of the utility model is to provide a concrete filled steel tube stand location is transferred and is hung down visual detection device, another object of the utility model is to provide a detection method who uses it, through the experiment, its absolute value that detects the precision is about 3-4 millimeters, and the error is invariable and can not increase along with the increase of length. So as long as detect length and exceed when 10 meters, the utility model discloses will be more accurate than current means.
The technical scheme is as follows:
the visual detection device for the positioning and verticality adjustment of the concrete filled steel tube stand column comprises a target board system, a centering support system and a visual verticality adjustment system for a sagging weight.
The technical key points are as follows:
the target board system is arranged at the bottom of the steel upright post.
The centering support system is arranged at the top end of the steel upright post.
The target plate system is characterized in that a hollow plate is fixed on a bottom flange of the steel upright post and serves as a target plate, a target center is arranged in the middle of the target plate, and the target center comprises a central point and a plurality of circles of target rings on the outer side.
And a compass is arranged beside the target center of the target board.
The centering support system is a pair of herringbone steel frames and comprises a centering flange plate and three support arms.
The inner end of the support arm and the centering flange are provided with a hinge device and a fixing device.
The support arm clamping groove is formed in the lower surface of the outer end of the support arm and corresponds to the edge of the steel stand column.
And the three connecting rods form a triangular shape, and the ends of the two connecting rods are connected through corresponding centering bolts.
Each support arm is provided with a strip-shaped jack, and each centering bolt is inserted into the corresponding strip-shaped jack.
A pulley is arranged at the central hole of the centering flange plate, and a groove of the pulley is positioned in the center of the steel upright post and the centering flange plate.
The visual drooping drop adjustment system comprises a drooping drop and a camera arranged in the inner space. The upper end of the drooping pendant is connected with a bearing wire which passes around the pulley.
The opening of the lower end of the drooping pendant is provided with a sight bead.
The lower end of the sight is provided with a silica gel gasket.
And an LED light supplementing lamp strip is arranged in the middle of the drooping pendant.
The utility model discloses still provide the detection method who uses the visual detection device that hangs down is transferred in the concrete filled steel tube stand location.
The advantages are that:
the steel upright post is positioned in the underground soil body during operation, and the steel pipe can generate shielding effect to cause that wireless signal facilities cannot be used. Therefore, the difficulty is brought to the detection work, and the conventional detection and measurement means on the ground cannot be implemented. At present, the existing method is to install a plurality of electronic gyroscopes at the side wall of a column body of an upright column, and the installation verticality is monitored through the electronic gyroscopes. However, this approach has the disadvantage that the mounting accuracy of the gyroscope is highly required and the deviation value is amplified as the length increases. (the length of the concrete filled steel tube column of the multi-layer subway station in the construction can reach 50 meters at present, the inner diameter is 90 centimeters, if a gyroscope device with the width of the bottom edge of 5 centimeters is adopted, if the base is slightly uneven during installation, the height deviation of two ends of the bottom surface of the gyroscope is 0.1 millimeter, and the verticality deviation of the 50-meter steel column reaches 100 millimeters.
The utility model discloses to the drawback of current means, develop according to the absolute vertically characteristics of line of action of gravity. The detection error is the self error (installation error and system gravity center offset error) of the system, and the absolute value of the detection precision can reach 1-4 mm through actual measurement, and the error value is constant and is not increased along with the increase of the height. When the detection length exceeds 10 meters, the method is more accurate than the existing method.
Drawings
Fig. 1 is a schematic diagram of a steel stud, a target plate system, a centering support system, and a visual droop system.
FIG. 2 is a schematic view of a target plate.
Fig. 3 is a partial enlarged view of the bulls-eye.
Fig. 4 is a schematic view of a centering bracket system.
Fig. 5 is an enlarged partial view of the centering flange.
Fig. 6 is a side view of the centering bracket system.
Fig. 7 is a partially enlarged view of the strip jack.
Fig. 8 is a schematic view of a visual droop setting apparatus.
Fig. 9 is a side view of a visual droop setting apparatus.
FIG. 10 is a quasisomic plot of acrylic sheets.
Target 1, north arrow 2, support arm 3, centering ring flange 4, steel stand 5, connecting rod 6, bar jack 7, pulley 8, flagging weight 9, camera 10, flagging weight bolt hole 11, flagging weight bolt 12, sight 13, silica gel packing ring 14, light filling lamp area 15, bearing line 16, power supply signal line 17, target board 18, bottom ring flange 19, target board connecting plate 20, support arm draw-in groove 21, centering bolt 22, target ring 23.
Detailed Description
The visual detection device for the positioning and verticality adjustment of the concrete filled steel tube stand column comprises a target board system, a centering support system and a visual verticality adjustment system for a sagging weight.
The target board system is arranged at the bottom of the steel upright post 5.
The centering bracket system is arranged at the top end of the steel upright post 5.
The visual pendant adjusting system comprises a pendant 9 and a power supply, signal and bearing line paying-off system.
The target plate system is characterized in that a hollow plate (steel plate) is additionally welded at the joint of a bottom flange 19 of the steel upright post 5 to serve as a target plate 18, a target center 1 is arranged in the middle of the target plate 18, and the target center 1 comprises a central point and a plurality of circles of target rings 23 which are arranged at intervals of 5mm in a circle.
A north arrow 2 is arranged beside the target center 1 of the target board 18 so as to be convenient for identifying deviation direction when adjusting verticality.
The target plate 18 is a hollow design except for a bottom flange plate 19, a target ring 23 and a target plate connecting plate 20, and is convenient for inserting a guide pipe during concrete pouring. And high-precision numerical control machining is adopted, so that the positioning target center 1 is ensured to be positioned at the center of the steel upright post 5 during welding.
The centering support system is a pair of herringbone steel frames and comprises a centering flange plate 4 and three support arms 3.
The inner end of the support arm 3 and the centering flange plate 4 are provided with articulated shafts which can rotate, and corresponding fixed holes which can be fixed by bolts.
The lower surface of the outer end of the support arm 3 is provided with a support arm clamping groove 21 corresponding to the edge of the steel upright post 5.
And three connecting rods 6 are arranged to form a triangular shape, and the ends of the two connecting rods 6 are respectively connected with corresponding centering bolts 22.
Each support arm 3 is provided with a strip-shaped jack 7, and each centering bolt 22 is inserted into the corresponding strip-shaped jack 7.
The centering flange 4 is a double-layer flange up and down, and is more stable.
When the centering flange plate 4 is manually rotated, the plurality of support arms 3 can be inwardly tightened (the white frame in fig. 4 is in an unused state of the support arms 3, the inner side of the support arm 3 moves to a shadow position after the centering flange plate 4 is rotated, so that the outer end of the support arm 3 is tightened), the support arm clamping groove 21 with the outer end diameter is reduced to clamp the steel upright post 5 (the shadow region is the position of the support arm 3 during clamping), and then the centering flange plate 4 and the three support arms 3 are fixed by bolts.
The support arms 3 are connected by using connecting rods 6 with equal length to keep regular triangles, the outer ends of the support arms 3 are connected and fixed with the connecting rods 6 by adopting centering bolts 22, the triangles have stability, the centering bolts 22 are inserted into the two connecting rods 6 from top to bottom and then continuously inserted into the strip-shaped jacks 7 on the support arms 3, the connection is not locked, at the moment, the support arms 3 can axially move along the direction of the strip-shaped jacks 7, but cannot transversely move under the control of the connecting rods 6. The bolt holes 7 in the arm 3 are formed in a strip shape so that they can move in the axial direction of the arm 3.
The center of the centering flange 4 is provided with a centering flange center hole, and the diameter of the centering flange center hole is 2mm, so that the centering flange passes through the bearing line 16.
A pulley 8 is arranged at the central hole of the centering flange plate, the groove of the pulley 8 is just positioned at the right center of the steel upright post 5 and the centering flange plate 4, and a bearing line 16 is arranged on the groove of the pulley 8.
The visual drooping drop adjustment system is a numerically-controlled fusiform drooping drop 9 (hollow iron drop), the upper end and the lower end of the drooping drop are flattened, the upper end and the lower end of the drooping drop can be conical, the plane taper of the upper cone angle is 40 degrees, the drooping drop can be conveniently pulled down or pulled out of the interior of the steel upright post 5, and the drooping drop can not be clamped by the interior structure of the steel upright post 5. The taper of about one third department in lower part changes 12 into, makes it can guarantee the shooting angle of bottom camera again can not hinder the shining of light filling lamp, and the inside is hollowed and is set up camera 10. The upper end is provided with a drooping drop bolt hole 11 which is inserted with a drooping drop bolt 12 which is transversely arranged, and two ends of the drooping drop bolt 12 are provided with bearing line hanging holes which are connected with a bearing line 16 so as to ensure the self verticality of the iron drop.
The lower end of the sight 13 is provided with a sight 13 (with a cross slot) made of a circular high-transmittance acrylic plate at the opening, and the lower end of the sight 13 is provided with a silica gel gasket 14 for weakening pendulum vibration and buffering collision when the iron falls to the bottom of the steel upright post 5. An LED light supplementing lamp strip 15 is arranged at the lower middle part of the pendant 9 for supplementing light under the night vision condition.
The power supply, signal and bearing line pay-off system is composed of a bearing line 16 (4 strands of Kevlar high-strength thin lines), a power supply signal line 17 and a take-up and pay-off reel. The power supply signal line 17 is wound on the bearing line 16 so as to avoid influencing the verticality of the system, and the free length of 10 cm is reserved at the position where the end of the power supply signal line 17 is connected with the camera 10, so that the load is guaranteed to be completely borne by the bearing line 16. The take-up and pay-off reel is provided with a brake and locking system and can decelerate or stop in the descending or ascending process of the iron drop.
The detection method of the visual detection device for positioning and adjusting the verticality of the steel pipe concrete column comprises the following steps:
when the centering flange plate 4 is manually rotated, the plurality of support arms 3 can be inwardly tightened to reduce the outer ends, the edges of the steel upright posts 5 are tightly clamped by the diameter support arm clamping grooves 21, and then the centering flange plate 4 and the three support arms 3 are fixed by bolts.
After the power is switched on, a load bearing line 16 of the drooping weight 9 is lowered to the position near a target center 1 at the bottom of the steel upright post 5 along a pulley 8 of the centering support system by using a pay-off reel, a picture of a camera 10 is checked in real time in the lowering process, a bottom silica gel gasket 14 is touched to reduce the shimmy when the bottom of the steel upright post 5 is close to the bottom of the steel upright post 5, the steel upright post 5 is observed immediately through the picture of the camera 10, the deviation of an acrylic plate sight 13 on the target center 1 is measured, the deviation position is observed through a north arrow 2, and an operator is instructed to adjust the verticality of the steel upright post 5 and observe again (the verticality can be observed only by slightly lifting the drooping weight 9 and then stabilizing the verticality) repeatedly until the verticality meets the standard requirement.
Claims (6)
1. The visual detection device for positioning and adjusting the verticality of the steel pipe concrete stand column comprises a target board system, a centering support system and a visual verticality adjusting system; the method is characterized in that:
the target board system is arranged at the bottom of the steel upright post (5);
the centering bracket system is arranged at the top end of the steel upright post (5);
the target plate system is characterized in that a hollow plate is fixed on a bottom flange (19) of a steel upright post (5) to serve as a target plate (18), a target (1) is arranged in the middle of the target plate (18), and the target (1) comprises a central point and a plurality of circles of target rings (23) on the outer side;
a north arrow (2) is arranged beside the target center (1) of the target board (18);
the centering support system is a pair of herringbone steel frames and comprises a centering flange plate (4) and three support arms (3);
the inner end of the support arm (3) and the centering flange (4) are provided with a hinge device and a fixing device;
the lower surface of the outer end of the support arm (3) is provided with a support arm clamping groove (21) corresponding to the edge of the steel upright post (5);
the three connecting rods (6) form a triangular shape, and the ends of the two connecting rods (6) are connected through corresponding centering bolts (22);
each support arm (3) is provided with a strip-shaped jack (7), and each centering bolt (22) is inserted into the corresponding strip-shaped jack (7);
a pulley (8) is arranged at the central hole of the centering flange plate, and a groove of the pulley (8) is positioned in the center of the steel upright post (5) and the centering flange plate (4);
the visual drooping pendant adjusting system is provided with a drooping pendant (9), and a camera (10) is arranged in the inner space; the upper end of the drop weight (9) is connected with a bearing line (16) and rounds the pulley (8);
the opening at the lower end of the drop weight (9) is provided with a sight bead (13).
2. The visual detection device of the steel pipe concrete stand location adjustment of claim 1, characterized in that:
the inner end of the support arm (3) and the centering flange plate (4) are provided with articulated shafts as articulated devices, and corresponding fixing holes are fixed through bolts as fixing devices.
3. The visual detection device of the steel pipe concrete stand location adjustment of claim 1, characterized in that:
the centering flange (4) is a double-layer flange.
4. The visual detection device of the steel pipe concrete stand location adjustment of claim 1, characterized in that:
the drooping plummet (9) is in a shuttle shape, and the upper part and the lower part are both conical.
5. The visual detection device of the steel pipe concrete stand location adjustment of claim 1, characterized in that:
the lower end of the sight (13) is provided with a silica gel gasket (14).
6. The visual detection device of the steel pipe concrete stand location adjustment of claim 1, characterized in that:
an LED light supplementing lamp strip (15) is arranged in the middle of the drooping pendant (9).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN202220742872.5U CN217083762U (en) | 2022-04-01 | 2022-04-01 | Visual detection device for positioning and verticality adjusting of concrete filled steel tube stand column |
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CN202220742872.5U CN217083762U (en) | 2022-04-01 | 2022-04-01 | Visual detection device for positioning and verticality adjusting of concrete filled steel tube stand column |
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CN202220742872.5U Active CN217083762U (en) | 2022-04-01 | 2022-04-01 | Visual detection device for positioning and verticality adjusting of concrete filled steel tube stand column |
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CN (1) | CN217083762U (en) |
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