CN210152295U - Can have enough to meet need reverse construction method steel-pipe column guiding device that hangs down of bolt formula - Google Patents
Can have enough to meet need reverse construction method steel-pipe column guiding device that hangs down of bolt formula Download PDFInfo
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- CN210152295U CN210152295U CN201920363352.1U CN201920363352U CN210152295U CN 210152295 U CN210152295 U CN 210152295U CN 201920363352 U CN201920363352 U CN 201920363352U CN 210152295 U CN210152295 U CN 210152295U
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Abstract
The utility model provides a can have enough to meet need reverse construction method steel-pipe column of bolt formula guider that hangs down, including the steel-pipe column, the steel-pipe column includes inner prop and outer wall body, and the outer wall body divide into the triplex, including the steel-pipe column that hangs down of transferring, down the steel-pipe column that hangs down and fixed steel-pipe column, fixed steel-pipe column is installed inside nature ground, and the steel-pipe column outer wall middle part that hangs down welds a plurality of 20mm thick steel sheets, and the steel-pipe column left and right sides that hangs down is provided with a lower through-hole respectively, the utility model relates to a rationally, convenient to use adopts bolt formula instrument post, and the steel column wall is the uniform thickness, and the bolt space is 4mm, and bolt length is 400mm, and after the steel column extension, the instrument post is installed when the steel column is assembled, adopts the high. The sum of the verticality deviation of the theoretical tool column is less than or equal to 2mm, the flatness is increased by 0.5/1500 compared with the original steel column flatness L/1500, and the installation precision is high.
Description
Technical Field
The utility model relates to a construction field, concretely relates to reverse construction method steel-pipe column guider that hangs down that can have enough to meet need bolt formula.
Background
The reverse construction method is mainly used for construction of multi-layer basements and other multi-layer underground structures of high-rise buildings, solves the safety problem of pit operation in dense areas of urban high-rise buildings, and has obvious economic effects in shortening construction period and reducing construction temporary support cost. However, most of the reverse construction methods have a lot of restrictions on engineering, and have load restrictions on the construction of overground superstructure, especially the depth of the foundation pit cannot be too deep, and the number of underground reverse construction structure layers is mostly below 3. The main reason for this is that the overall stability of the vertical supporting piles, the underground continuous wall and the horizontal structure stress system cannot meet the structural stability requirement. Specifically, the construction quality of the reverse construction method of the underground vertical structure is far lower than the level of the forward construction, and particularly the verticality control of the steel pipe upright pile in the reverse construction area is more important.
At present, because the foundation pit is constructed by adopting a full reverse construction method, the depth of the foundation pit is 24.3m, 146 steel pipe columns are constructed in a one-column one-pile engineering mode, the section types of the steel pipe columns are many, and the steel pipe columns contain special-shaped section columns; the allowable deviation design requirement of the steel column verticality control is less than or equal to 1/1000, the full-length column is not more than 35mm, the steel column design verticality requirement is very high, and the construction control difficulty is well known. In order to meet the construction quality requirement, a steel pipe column verticality adjusting scheme which is 4m higher than the ground is adopted. In order to reduce the cost, the cost is effectively saved by adopting the measure that the solid steel column is 2m + 2m higher than the ground and can be used for transferring the tool column, and meanwhile, the connecting node of the steel column and the tool column is optimized, and the lengthening and assembling quality of the steel column is ensured.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the above-mentioned not enough, provide a reverse construction method steel-pipe column guiding device that hangs down that can have enough to meet need bolt formula.
The utility model aims at realizing through the following technical scheme:
the utility model provides a reverse construction method steel-pipe column of bolt formula of can having enough to meet need guider that hangs down, includes the steel-pipe column, and the steel-pipe column includes inner prop and outer wall body, and the outer wall body divide into the triplex, including the steel-pipe column that hangs down of transferring, down hang down the steel-pipe column and fixed steel-pipe column, fixed steel-pipe column is installed inside nature ground, and down hang down a plurality of 20mm thick steel sheets of steel-pipe column outer wall middle part welding, the steel-pipe column left and right sides that hangs down is provided with a lower.
The left side and the right side of the up-regulating vertical steel pipe column are respectively provided with an upper through hole.
An M30 high-strength coarse thread nut is arranged in each lower through hole.
And the right side of the fixed steel pipe column is provided with an overflow hole.
The utility model discloses following profitable effect has:
the utility model relates to a rationally, convenient to use adopts bolt formula instrument post, and steel column wall uniform thickness, bolt space are 4mm, and bolt length is 400mm, and the steel column meets long the back, installs the instrument post when the steel column is assembled, adopts the nut connection of excelling in to with steel sheet welded fastening, see the big appearance of design in detail. The sum of the verticality deviation of the theoretical tool column is less than or equal to 2mm, the flatness is increased by 0.5/1500 compared with the original steel column flatness L/1500, and the installation precision is high.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Detailed Description
The invention will be further described with reference to the accompanying drawings:
as shown in fig. 1, the steel pipe column verticality adjusting guide device of the reversible plug pin type reverse construction method comprises a steel pipe column, wherein the steel pipe column comprises an inner column and an outer wall body, the outer wall body is divided into three parts, the three parts comprise an up-adjusting vertical steel pipe column 1, a down-adjusting vertical steel pipe column 2 and a fixed steel pipe column 3, the fixed steel pipe column 3 is installed inside a natural ground 7, a plurality of 20mm thick steel plates 8 are welded in the middle of the outer wall of the down-adjusting vertical steel pipe column 2, and the left side and the right side of the down-adjusting vertical steel pipe column are respectively provided.
The left side and the right side of the up-regulating vertical steel pipe column are respectively provided with an upper through hole 4.
An M30 high-strength coarse thread nut is arranged in each lower through hole.
And the right side of the fixed steel pipe column is provided with an overflow hole 6.
The outer pipe and the inner pipe of the tool pipe are welded, the outer pipe and the inner pipe can be welded after the overlapped part of the inner pipe and the outer pipe is longitudinally opened, the end surface of the outer pipe cannot be welded, a plurality of 9.8-grade M30 high-strength coarse-grained nuts are symmetrically welded on the inner pipe in an embedding mode, M30 bolts with the length of 70mm are matched, and the number and the positions of through holes in the top of the steel upright post are consistent with those of nuts welded on a sleeve in the; the inner pipe can be rolled by a Q235 steel plate, the outer wall of the inner pipe is polished to be round, and smooth insertion into the steel pipe column is guaranteed.
During site construction, after the tool pipe is connected with the steel upright post, longitudinal rib plates are welded on the outer side, the number of the longitudinal rib plates is equal to that of the connecting bolts, and the size of each longitudinal rib plate is 300 × 100 × 25. The elevation of the upright post is as follows: (1) the steel column with only one specification is not provided with a tool column, the height of the lengthened top of the column is 3.2m, and the height of the tops of the other steel columns is 2m higher than the ground.
Regarding the overflow ports: (1) horizontal position: the circular columns and the axis are symmetrically arranged at an included angle of 45 degrees, and the rectangular columns are symmetrically arranged at opposite angles; (2) quantity: two holes are formed in each steel upright column.
The bolt type tool column is adopted, the wall thickness of a steel column is equal, the bolt space is 4mm, the length of the bolt is 400mm, after the steel column is lengthened, the tool column is installed when the steel column is assembled, high-strength nuts are adopted for connection, steel plates are used for welding and fixing, the sum of the verticality deviation of the theoretical tool column is less than or equal to 2mm, and the flatness L/1500 of the theoretical tool column is increased by 0.5/1500 compared with that of the original steel column.
Claims (4)
1. The utility model provides a reverse construction method steel-pipe column of bolt formula that can have enough to meet need guiding device that hangs down, includes the steel-pipe column, its characterized in that: the steel-pipe column includes interior post and outer wall body, and the outer wall body divide into the triplex, including the steel-pipe column that hangs down of rising, down hang down the steel-pipe column and fixed steel-pipe column, fixed steel-pipe column is installed inside nature ground, and a plurality of 20mm thick steel sheets of steel pipe column outer wall middle part welding that hangs down hang down, and the steel-pipe column left and right sides that hangs down is provided with a lower through-hole respectively down.
2. The reversible pin type top-down method steel pipe column verticality adjusting guide device of claim 1, wherein the reversible pin type top-down method steel pipe column verticality adjusting guide device comprises the following components in parts by weight: the left side and the right side of the up-regulating vertical steel pipe column are respectively provided with an upper through hole.
3. The reversible pin type top-down method steel pipe column verticality adjusting guide device of claim 1, wherein the reversible pin type top-down method steel pipe column verticality adjusting guide device comprises the following components in parts by weight: and an M30 high-strength coarse-grained nut is arranged in each lower through hole.
4. The reversible pin type top-down method steel pipe column verticality adjusting guide device of claim 1, wherein the reversible pin type top-down method steel pipe column verticality adjusting guide device comprises the following components in parts by weight: and an overflow hole is formed in the right side of the fixed steel pipe column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920363352.1U CN210152295U (en) | 2019-03-21 | 2019-03-21 | Can have enough to meet need reverse construction method steel-pipe column guiding device that hangs down of bolt formula |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920363352.1U CN210152295U (en) | 2019-03-21 | 2019-03-21 | Can have enough to meet need reverse construction method steel-pipe column guiding device that hangs down of bolt formula |
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| Publication Number | Publication Date |
|---|---|
| CN210152295U true CN210152295U (en) | 2020-03-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920363352.1U Active CN210152295U (en) | 2019-03-21 | 2019-03-21 | Can have enough to meet need reverse construction method steel-pipe column guiding device that hangs down of bolt formula |
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| CN (1) | CN210152295U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111676963A (en) * | 2020-06-12 | 2020-09-18 | 中电建南方建设投资有限公司 | Steel pipe upright post positioning device and positioning construction method thereof |
-
2019
- 2019-03-21 CN CN201920363352.1U patent/CN210152295U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111676963A (en) * | 2020-06-12 | 2020-09-18 | 中电建南方建设投资有限公司 | Steel pipe upright post positioning device and positioning construction method thereof |
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