CN109930493B - Auxiliary assembly device for bent cap and construction method thereof - Google Patents
Auxiliary assembly device for bent cap and construction method thereof Download PDFInfo
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- CN109930493B CN109930493B CN201910333067.XA CN201910333067A CN109930493B CN 109930493 B CN109930493 B CN 109930493B CN 201910333067 A CN201910333067 A CN 201910333067A CN 109930493 B CN109930493 B CN 109930493B
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- 238000010276 construction Methods 0.000 title claims abstract description 34
- 125000006850 spacer group Chemical group 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract description 3
- 230000036544 posture Effects 0.000 description 3
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
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Abstract
The invention discloses a capping beam assembly auxiliary device and a construction method thereof, wherein the capping beam assembly auxiliary device comprises an embedded part at the upper part and a limiting part at the lower part, the embedded part is preset at the bottom of a prefabricated capping beam, and the limiting part is fixed on a prefabricated upright post; the embedded part comprises an embedded sleeve and a telescopic rod arranged in the embedded sleeve; the limiting piece comprises a wide-mouth sleeve, the top of the wide-mouth sleeve is provided with a wide-mouth opening in an inverted cone shape, and the bottom of the wide-mouth sleeve is provided with a jacking device; the telescopic rod is inserted into the wide mouth sleeve from the wide mouth opening and is propped against the top of the jacking device. The invention has the advantages that: the installation is convenient, the operation is simple and easy, and the reliability of the device is high; the embedded part is arranged in a preset factory, so that the field construction quantity is reduced, and the working efficiency is improved; the problem of the hoist and mount in-process counterpoint difficulty of prefabricated bent cap is solved to can adjust the prefabricated bent cap after hoist and mount, improve the precision that the bent cap was assembled.
Description
Technical Field
The invention belongs to the technical field of prefabricated bent cap construction, and particularly relates to a bent cap assembly auxiliary device and a construction method thereof.
Background
For conditions of complex terrain or limited land use in traffic planning, bridge construction means are generally adopted to cope with the conditions. In the prior art, in order to accelerate the construction process of a bridge, the construction of a prefabricated assembly type bridge is widely applied. The prefabricated assembled bridge is assembled in a factory by adopting prefabricated pier columns, capping beams and longitudinal beams and a reproduction field, so that the construction period of the prefabricated assembled bridge is greatly shortened and the construction efficiency is improved compared with the construction of the integral cast-in-situ bridge. However, when the existing prefabricated assembled bridge is assembled by the prefabricated upright posts and the prefabricated capping beams, the assembling difficulty is often improved due to high-altitude operation, the assembling precision cannot be guaranteed, and the assembling error cannot be adjusted.
Disclosure of Invention
According to the defects of the prior art, the invention provides the auxiliary device for assembling the bent cap and the construction method thereof, and the prefabricated bent cap can be accurately installed on a construction position by arranging the embedded part and the limiting part which are connected with each other.
The invention is realized by the following technical scheme:
the auxiliary device for assembling the bent cap comprises an embedded part at the upper part and a limiting part at the lower part, wherein the embedded part is preset at the bottom of a prefabricated bent cap, and the limiting part is fixed on a prefabricated upright post; the embedded part comprises an embedded sleeve and a telescopic rod arranged in the embedded sleeve; the limiting piece comprises a wide-mouth sleeve, the top of the wide-mouth sleeve is provided with an inverted cone-shaped wide-mouth opening, and the bottom of the wide-mouth sleeve is provided with a jacking device; the telescopic rod is inserted into the wide-mouth sleeve from the wide-mouth opening and abuts against the top of the jacking device.
The top of telescopic link is provided with the external screw thread, the bottom of pre-buried sleeve be provided with the internal screw thread of external screw thread adaptation, the inside degree of depth of pre-buried sleeve is greater than the length of telescopic link.
The bottom surface of the telescopic rod is smooth semi-elliptic.
The jacking device comprises a jacking bolt at the lower part and a cushion block at the upper part, and threads matched with the jacking bolt are arranged on the inner wall of the bottom of the wide-mouth sleeve.
And a sliding block is arranged between the jacking bolt and the cushion block.
The shape of the top surface of the cushion block is mutually matched with the shape of the bottom surface of the telescopic rod.
The inner diameter of the middle part of the wide-mouth sleeve is the same as the outer diameter of the lower part of the telescopic rod, and the maximum inner diameter of the wide-mouth opening is not less than 8 times of the maximum inner diameter of the middle part of the wide-mouth sleeve.
The outer side wall of the wide-mouth sleeve is provided with a sleeve supporting frame, and the sleeve supporting frame is fixedly connected with the prefabricated upright post through a high-strength bolt.
The construction method related to the bent cap assembly auxiliary device comprises the following steps:
step 1: the position of the assembly auxiliary device is defined, the embedded part is arranged on the prefabricated cover beam according to the position, and the limiting part is fixed on the prefabricated upright post;
step 2: hanging the prefabricated capping beam to the position right above a construction position, and pulling the telescopic rod out of the bottom surface of the prefabricated capping beam and fixing the telescopic rod;
step 3: lowering the prefabricated capping beam to the construction position, and controlling the telescopic rods to be inserted into the corresponding limiting parts;
step 4: and adjusting the jacking device at the bottom of the limiting piece to adjust the posture of the prefabricated capping beam at the construction position. .
The invention has the advantages that: the installation is convenient, the operation is simple and easy, and the reliability of the device is high; the embedded part is arranged in a preset factory, so that the field construction quantity is reduced, and the working efficiency is improved; the problem of the hoist and mount in-process counterpoint difficulty of prefabricated bent cap is solved to can adjust the prefabricated bent cap after hoist and mount, improve the precision that the bent cap was assembled.
Drawings
FIG. 1 is a schematic view of a structure of an embedded part in a contracted state according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of an embedded part in an extended state according to an embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view of an embedded part in a contracted state according to an embodiment of the present invention;
FIG. 4 is a schematic cross-sectional view of an embedded part in an extended state according to an embodiment of the present invention;
FIG. 5 is a schematic view of a front view of a wide mouth sleeve according to an embodiment of the present invention;
FIG. 6 is a schematic side cross-sectional view of a wide mouth sleeve according to an embodiment of the present invention;
FIG. 7 is a schematic side view of a wide mouth sleeve according to an embodiment of the present invention;
FIG. 8 is a schematic rear view of a wide mouth sleeve according to an embodiment of the present invention;
FIG. 9 is a schematic diagram of a combination of a plurality of auxiliary units according to an embodiment of the present invention;
fig. 10 is a schematic overall sectional structure of a roof beam assembly auxiliary device according to an embodiment of the invention.
Detailed Description
The features of the present invention and other related features are described in further detail below by way of example in conjunction with the following drawings, to facilitate understanding by those skilled in the art:
as shown in fig. 1-10, the labels in the figures are respectively: the telescopic sleeve comprises a pre-buried sleeve 1, a telescopic rod 2, a wide-mouth sleeve 3, a wide-mouth opening 4, a jacking bolt 5, a high-strength bolt 6, a sleeve support frame 7, a cushion block 8, a sliding block 9, a prefabricated capping beam 10 and a prefabricated upright post 11.
Examples: as shown in fig. 1 to 10, the present embodiment particularly relates to a capping beam assembly auxiliary device and a construction method thereof, by arranging an embedded part and a limiting part which are connected with each other, the prefabricated capping beam 10 can be accurately installed on a construction position.
As shown in fig. 1 to 10, the auxiliary device for assembling the capping beam in the embodiment comprises an embedded part at the upper part and a limiting part at the lower part, wherein the embedded part is preset at the bottom of the prefabricated capping beam 10, and the limiting part is fixed on the prefabricated upright post 11; the embedded part comprises an embedded sleeve 1 and a telescopic rod 2, and the telescopic rod 2 is arranged in the embedded sleeve 1; the limiting piece comprises a wide-mouth sleeve 3, the top of the wide-mouth sleeve 3 is designed to be an inverted cone-shaped wide-mouth opening 4, and a jacking device is arranged at the bottom of the wide-mouth sleeve 3; the telescopic rod 2 is inserted into the wide mouth sleeve 3 from the wide mouth opening 4 and is propped against the top of the jacking device.
As shown in fig. 1-10, in this embodiment, the telescopic rod 2 extends out of the pre-buried sleeve 1, a protruding rod body can be formed at the bottom of the prefabricated capping beam 10, a preset limiting piece is arranged right below the rod body, the prefabricated capping beam 10 continuously descends during hoisting, meanwhile, the caliber of the inside of the limiting piece is also reduced along with the insertion of the rod body into the wide mouth 4, the rod body is limited at the position of the limiting piece gradually, and finally the central axis of the telescopic rod 2 coincides with the central axis of the limiting piece, so that the position of the limiting piece in the prefabricated capping beam 10 is identical with the preset hoisting position. After the hanging and pulling device is removed from the prefabricated cover beam 10, the position of the prefabricated cover beam 10 can deviate due to the influence of environmental and material factors, and the insertion depth of the embedded part can be limited by the downward pushing and the pushing of the jacking device relative to the limiting part, so that the height adjustment of the specific position of the prefabricated cover beam 10 is realized.
As shown in fig. 9, in this embodiment, one embedded part and one limiting part can form an auxiliary unit, and in the construction of the prefabricated capping beam 10, multiple groups of auxiliary units can be provided, and the auxiliary units are distributed on each connection angle of the prefabricated capping beam 10 and the prefabricated upright post 11. The auxiliary units can limit the positions of the prefabricated capping beams 10, so that the hoisting positions can be more accurate, in addition, the heights of the positions of the prefabricated capping beams 10 can be controlled by adjusting the jacking devices in each group of auxiliary units, and the postures of the prefabricated capping beams 10 can be controlled. And after the construction of the prefabricated capping beam 10 is completed, the embedded part is sealed by adopting filling materials.
As shown in fig. 1-4, in this embodiment, an external thread is provided at the top of the telescopic rod 2, an internal thread adapted to the external thread is provided at the bottom of the pre-embedded sleeve 1, and the telescopic rod 2 can be fixedly extended out of the pre-embedded sleeve 1 through the external thread and the internal thread. The inside degree of depth of pre-buried sleeve 1 is greater than the length of telescopic link 2, guarantees prefabricated bent cap 10 in pouring the transportation, and telescopic link 2 can shrink into in the pre-buried sleeve 1, avoids pouring the influence with the transportation operation, has improved the efficiency of construction. The bottom surface of the telescopic rod 2 is in a smooth hemispherical shape, so that friction between the telescopic rod 2 and the jacking device can be reduced.
As shown in fig. 5-8, in this embodiment, the jacking device includes a lower jacking bolt 5 and an upper spacer 8, and the inner wall of the bottom of the wide-mouth sleeve 3 is provided with threads adapted to the jacking bolt 5. A sliding block 9 is arranged between the jacking bolt 5 and the cushion block 8. The shape of cushion 8 top surface and the shape of telescopic link 2 bottom surface are mutually adapted, can improve the laminating degree between cushion 8 and the telescopic link 2 for prefabricated bent cap 10 can smoothly reciprocate. The top of the cushion block 8 is directly contacted with the telescopic rod 2, the jacking bolt 5 changes the height of the jacking bolt in the wide-mouth sleeve 3 through rotation, and then the cushion block 8 is driven to lift, so that the telescopic rod 2 and the prefabricated capping beam 10 on the upper portion can be adjusted up and down. The sliding block 9 isolates the cushion block 8 from the jacking bolts 5, so that abrasion between the cushion block 8 and the jacking bolts 5 can be reduced.
As shown in fig. 5-10, in this embodiment, the inner diameter of the middle part of the wide mouth sleeve 3 is the same as the outer diameter of the lower part of the telescopic rod 2, the maximum inner diameter of the wide mouth opening 4 is not less than 8 times of the maximum inner diameter of the middle part of the wide mouth sleeve 3, the wide mouth sleeve 3 can ensure that the bottom of the telescopic rod 2 can be smoothly inserted into the top of the wide mouth sleeve 3 even when the prefabricated capping beam 10 is lifted and rocked greatly, and after the height of the prefabricated capping beam 10 is gradually lowered, the telescopic rod 2 enters into the middle part of the wide mouth sleeve 3 along the wide mouth opening 4 which is gradually narrowed. The outer side wall of the wide-mouth sleeve 3 is provided with a sleeve support frame 7, the sleeve support frame 7 is fixedly connected with the prefabricated upright 11 through a high-strength bolt 6, and the high-strength bolt 6 and the sleeve support frame 7 ensure that a limiting piece can be firmly connected to the prefabricated upright 11.
As shown in fig. 1 to 10, the construction method of the bent cap assembly auxiliary device in this embodiment includes the following steps: step 1: the position of the auxiliary assembly device is defined, the embedded part is arranged on the prefabricated capping beam 10 according to the position, the limiting part is fixed on the prefabricated upright post 11, and the mutual correspondence between the position of the embedded part and the position of the limiting part is ensured. Step 2: and (3) hanging the prefabricated capping beam 10 to the position right above the construction position, pulling the telescopic rod 2 out of the bottom surface of the prefabricated capping beam 10 and fixing the telescopic rod, and realizing the fixation through the connection of the internal thread of the telescopic rod 2 and the external thread of the embedded sleeve 1. Step 3: the prefabricated capping beam 10 is lowered to a construction position, and the telescopic rods 2 are controlled to be inserted into the corresponding limiting pieces, so that the prefabricated capping beam 10 gradually enters a preset construction position under the limitation of the limiting pieces. Step 4: the jacking device at the bottom of the limiting piece is adjusted to adjust the posture of the prefabricated capping beam 10 at the construction position.
This embodiment has the following advantages: the installation is convenient, the operation is simple and easy, and the reliability of the device is high; the embedded part is arranged in a preset factory, so that the field construction quantity is reduced, and the working efficiency is improved; the problem of the hoist and mount in-process counterpoint difficulty of prefabricated bent cap 10 is solved to can adjust prefabricated bent cap 10 after hoist and mount, improve the precision that the bent cap was assembled.
Claims (9)
1. The auxiliary device for assembling the bent cap is characterized by comprising an embedded part at the upper part and a limiting part at the lower part, wherein the embedded part is preset at the bottom of the prefabricated bent cap, and the limiting part is fixed on the prefabricated upright post; the embedded part comprises an embedded sleeve and a telescopic rod arranged in the embedded sleeve; the limiting piece comprises a wide-mouth sleeve, the top of the wide-mouth sleeve is provided with an inverted cone-shaped wide-mouth opening, and the bottom of the wide-mouth sleeve is provided with a jacking device; the telescopic rod is inserted into the wide-mouth sleeve from the wide-mouth opening and abuts against the top of the jacking device.
2. The bent cap assembly auxiliary device according to claim 1, wherein the top of the telescopic rod is provided with external threads, the bottom of the embedded sleeve is provided with internal threads matched with the external threads, and the depth of the inside of the embedded sleeve is larger than the length of the telescopic rod.
3. The bent cap assembly auxiliary device according to claim 1, wherein the bottom surface of the telescopic rod is smooth semi-elliptic.
4. The bent cap assembly auxiliary device according to claim 1, wherein the jacking device comprises a jacking bolt at the lower part and a cushion block at the upper part, and threads matched with the jacking bolt are arranged on the inner wall of the bottom of the wide-mouth sleeve.
5. The bent cap assembly assist device as set forth in claim 4, wherein a slider is provided between the jack-up bolt and the spacer.
6. The bent cap assembly assist device as set forth in claim 4, wherein the top surface of the spacer is shaped to fit the bottom surface of the telescoping rod.
7. The bent cap assembly auxiliary device according to claim 1, wherein the inner diameter of the middle part of the wide mouth sleeve is the same as the outer diameter of the lower part of the telescopic rod, and the maximum inner diameter of the wide mouth is not smaller than 8 times of the maximum inner diameter of the middle part of the wide mouth sleeve.
8. The bent cap assembly auxiliary device according to claim 1, wherein a sleeve supporting frame is arranged on the outer side wall of the wide-mouth sleeve, and the sleeve supporting frame is fixedly connected with the prefabricated upright post through a high-strength bolt.
9. A construction method involving the bent cap assembly auxiliary device according to any one of claims 1 to 8, characterized by comprising the steps of:
step 1: the position of the assembly auxiliary device is defined, the embedded part is arranged on the prefabricated cover beam according to the position, and the limiting part is fixed on the prefabricated upright post;
step 2: hanging the prefabricated capping beam to the position right above a construction position, and pulling the telescopic rod out of the bottom surface of the prefabricated capping beam and fixing the telescopic rod;
step 3: lowering the prefabricated capping beam to the construction position, and controlling the telescopic rods to be inserted into the corresponding limiting parts;
step 4: and adjusting the jacking device at the bottom of the limiting piece to adjust the posture of the prefabricated capping beam at the construction position.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910333067.XA CN109930493B (en) | 2019-04-24 | 2019-04-24 | Auxiliary assembly device for bent cap and construction method thereof |
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| CN201910333067.XA CN109930493B (en) | 2019-04-24 | 2019-04-24 | Auxiliary assembly device for bent cap and construction method thereof |
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| CN109930493A CN109930493A (en) | 2019-06-25 |
| CN109930493B true CN109930493B (en) | 2024-01-23 |
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| CN112095829A (en) * | 2020-09-12 | 2020-12-18 | 北京市第三建筑工程有限公司 | Method for quickly mounting tensile vibration isolator |
| CN113235447B (en) * | 2021-05-31 | 2023-08-18 | 湖南对外建设集团有限公司 | Prefabricated bent cap mounting equipment and construction method thereof |
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