CN211897924U - Temporary bridge support - Google Patents
Temporary bridge support Download PDFInfo
- Publication number
- CN211897924U CN211897924U CN201922197296.1U CN201922197296U CN211897924U CN 211897924 U CN211897924 U CN 211897924U CN 201922197296 U CN201922197296 U CN 201922197296U CN 211897924 U CN211897924 U CN 211897924U
- Authority
- CN
- China
- Prior art keywords
- bridge
- columns
- upright posts
- support
- groups
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000013316 zoning Methods 0.000 claims description 2
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 238000000034 method Methods 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
Images
Abstract
A temporary bridge support, comprising: the bridge comprises two groups of mutually spaced upright columns arranged in the middle of the bridge, supporting beams arranged between the upright columns and the bridge floor and cross beams connected between the supporting beams. The bottom end of the upright post is fixed on a concrete strip foundation positioned in a middle zone of a road, so that the upright post does not occupy the passing road. The support beam of each group of upright columns is arranged between the upper end of each upright column and the bridge deck; the cross beam is horizontally arranged among the stand columns, and two ends of the cross beam are respectively welded at the upper ends of the side walls of different support beams; the connecting beam is connected between the two groups of upright posts. The utility model discloses still set up a set of support column below the leg to one side at the bridge both ends, auxiliary column provides the support to the bridge. Therefore, the utility model discloses can use each strong point to carry out the piecemeal to the bridge as the boundary, demolish each modular unit of the bridge after the piecemeal one by one. The utility model discloses can be when guaranteeing that below road is current, quick safe old bridge of demolising avoids long-time closed road to influence original traffic route.
Description
Technical Field
The utility model relates to a field is demolishd to the bridge, especially relates to an interim bridge supports.
Background
Along with the rapid development of traffic, the positions of some bridges are not suitable, and the development of traffic routes is influenced. Some bridges are long in age, the weight capable of being borne by the bridges is not suitable for the existing traffic demand any more, and certain potential safety hazards exist. Some bridges therefore need to be dismantled.
When the existing bridge needing to be dismantled is intersected with a route, broken stones can fall off in the bridge dismantling process, and the bridge is unsafe, so that roads below the bridge need to be closed. However, as the old bridge needs to be dismantled, and the traffic jam is caused because the road is blocked after the old bridge is dismantled for a long time, the dismantling mode of the bridge needs to be improved, the dismantling efficiency is improved, and broken stones are reduced from falling.
SUMMERY OF THE UTILITY MODEL
In order to solve the defects existing in the prior art, the utility model aims to provide an interim bridge supports. The utility model discloses a build interim bridge and support the mode of demolising that realizes the piecemeal removal to the bridge, realize quick safe demolising old bridge to reduce the influence to traffic route as far as.
In order to achieve the above object, the utility model provides an interim bridge supports, include:
the concrete strip foundation is horizontally arranged at the middle zoning position of the road below the bridge;
the two groups of stand columns are vertically fixed on the concrete strip foundation, are respectively supported between the concrete strip foundation and the middle part of the bridge, and are provided with intervals;
the connecting beam is connected between the two groups of stand columns;
a support beam welded between the upper end of each of the columns and the deck;
the cross beam is horizontally arranged among the stand columns, and two ends of the cross beam are respectively welded at the upper ends of the side walls of different support beams;
the supporting columns comprise at least two groups, each group of supporting columns is arranged below the inclined bridge leg, the bottom ends of the supporting columns are fixed on abutment attachment plates on two sides of a road, and a supporting block is arranged between the top end of each group of supporting columns and the inclined bridge leg.
Each stand, support column and each supporting beam play a supporting role to the bridge, and stand and support column still carry out the piecemeal to the length direction of bridge simultaneously, carry out the piecemeal to the length direction of bridge. The bridge blocks after being blocked can be removed one by one, and the stand columns and the support columns can support the rest parts after being removed, so that collapse is avoided. The invention can dismantle the blocks of the bridge step by step, is quick and safe, reduces the influence on the original road traffic, and is convenient for quickly cleaning the site when ending.
Optionally, in the temporary bridge support, each group of the three upright posts is respectively arranged in a straight line along the width direction of the bridge, a space is arranged between each group of the upright posts, a connecting beam is further arranged between each group of the upright posts, and two ends of each connecting beam are respectively welded and fixed on the surfaces of the side walls of different upright posts.
The stand plays main supporting role to the bridge, and each stand distributes evenly, just makes the even weight that bears the bridge of strong point distribution, can effectually bear heavier weight, avoids the stand of buckling to cause the bridge slope to collapse.
Optionally, in the temporary bridge support, the connecting beam includes two horizontal connecting rods and an inclined connecting rod, wherein one horizontal connecting rod is horizontally connected between the upper ends of the two vertical columns; the other horizontal connecting rod is horizontally connected between the lower ends of the two upright posts; two ends of the inclined connecting rod are respectively connected with two stand columns and arranged between two horizontal connecting rods connected with the two stand columns.
Set up even roof beam between the stand and can avoid the stand to shift when the bearing, firm stand reduces the risk that the stand warp when the bearing.
Optionally, in the temporary bridge support, each group of the support columns includes two support columns, and the two support columns are arranged in a straight line along the width direction of the bridge.
The support column plays the effect of auxiliary stay, when dismantling one by one after can avoiding the piecemeal back to the support of bridge sloping leg, causes the collapse and the stand deformation of bridge because of the atress condition changes.
Optionally, in the temporary bridge support, the upright posts and the supporting posts are both cylinders.
The used material and density are the same, and the holding power of cylinder is best, consequently can bear bigger weight under the same material, reduces the stand because of the too big risk of bending deformation of bearing, has further guaranteed constructor and the safety of passing vehicle.
Optionally, in the temporary bridge support, in each group of the columns, the distance between adjacent columns is equal.
Each stand distributes evenly, and each strong point atress is leveled, and the bridge that supports is firm, and the stand can not warp because of the atress is uneven and cause the slope of bridge to collapse, leads to casualties loss of property.
Optionally, in the temporary bridge support, the two sets of the upright posts are parallel to each other.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, together with the embodiments of the invention for the purpose of explanation and not limitation of the invention. In the drawings:
fig. 1 is a schematic view of the overall structure according to the present invention;
fig. 2 is a schematic structural view of a center pillar according to the present invention;
in the figure, 1-column; 2-a support beam; 3-a cross beam; 4-a concrete strip foundation; 5-connecting the beam; 6-support column; 7-supporting block.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
As shown in fig. 1 and fig. 2, the utility model provides a temporary bridge support, include:
the concrete strip foundation 4 is horizontally arranged at the middle zone position of a road below the bridge, the middle zone separates vehicles from and to the road and is positioned in the middle of the road, and the concrete strip foundation 4 is made of C30 concrete;
the upright post 1 adopts a phi 530 cylindrical steel pipe as the upright post 1 and comprises two groups, and the two groups of upright posts 1 are mutually parallel. On two sets of stand 1 all vertical fixation in concrete strip foundation 4, two sets of stand 1 support respectively between the middle part of concrete strip foundation 4 and bridge, are provided with the interval between two sets of stand 1. Each group of the upright posts 1 respectively comprises three upright posts 1, the three upright posts 1 are arranged in a straight line along the width direction of the bridge, intervals are arranged among the upright posts 1 in each group, the intervals among the upright posts 1 are equal, and the distances among the adjacent upright posts 1 in each group of the upright posts 1 are equal. The upright columns 1 play a main supporting role, the bridge is divided into two sections in the length direction, supporting points are uniformly distributed, uneven pressure distribution is avoided, and the bearing capacity of a single upright column is too large to cause bending deformation to cause bridge toppling.
And the connecting beam 5 is connected between the two groups of the upright posts 1, and the connecting beam 5 is also arranged between the upright posts 1 of each group. And two ends of the connecting beam 5 are respectively welded and fixed on the surfaces of the side walls of different upright columns 1. The connecting beam 5 comprises two horizontal connecting rods and an inclined connecting rod, wherein one horizontal connecting rod is horizontally connected between the upper ends of the two upright posts 1; the other horizontal connecting rod is horizontally connected between the lower ends of the two upright posts 1; two ends of the inclined connecting rod are respectively connected with two upright posts 1 and arranged between two horizontal connecting rods connected with the two upright posts 1. The upright posts are fixed in the horizontal direction.
And the support beam 2 is welded between the upper end of each upright column 1 and the bridge deck. Can be with the bridge floor horizontal piecemeal that carries on, with deck slab and guardrail divide into two parts about respectively.
And the cross beam 3 is horizontally arranged between the stand columns 1, and two ends of the cross beam 3 are respectively welded at the upper ends of the side walls of different support beams 2. The bridge deck is supported, and the vertical columns 1 are also fixed.
The supporting columns 6 adopt phi 530 cylindrical steel pipes as the supporting columns 6, the supporting columns 6 comprise at least two groups, each group of supporting columns 6 are respectively arranged below the inclined legs of the bridge, the bottom ends of each group of supporting columns 6 are respectively fixed on abutment butt straps on two sides of a road, and supporting blocks 7 are arranged between the top ends of each group of supporting columns 6 and the inclined legs of the bridge. Each group of the support columns 6 respectively comprises two support columns 6, and the two support columns 6 are arranged in a straight line along the width direction of the bridge. And the segmented bridge is partitioned again by taking the inclined leg as a boundary, so that the bridge body is supported in an auxiliary manner.
This scheme is when demolising old bridge, and each part of bridge is demolishd to accessible step as follows modularization one by one to the in-process of demolising reduces the current influence to bridge below road:
firstly, the existing high-speed temporary guide is changed into half-width bidirectional passing.
Then, a temporary upright post 1 and support posts 6 are erected, the upright post 1 is used as a boundary, the bridge is longitudinally divided into two parts, and the two parts are divided into two parts by using inclined legs supported by the two groups of support posts 6 as a boundary. Therefore, the utility model discloses a bearing structure can divide into six with the bridge along its vertical altogether to provide the support for each bridge structures respectively.
In the subsequent dismantling process, the main beam of the bridge body between the inclined leg on one side and the bridge head can be dismantled firstly. This step can be done by rope saw cutting, 130t truck crane removal. The main beam between the oblique leg on this side and the upright 1 is then removed in the same way. And finally crushing and removing the inclined leg and the abutment butt strap on the side, and removing by adopting a chiseling method of a rock drill. The other side is also removed in the same order.
In the dismantling process of the structure, the three support beams 2 on each group of upright posts transversely divide the bridge into blocks, and when one section of main beam is dismantled, the guardrails and the bridge deck can be dismantled in sequence. The dismantling process can be realized by cutting with a rope saw or by a method of hoisting by a 130t truck crane.
And finally, cutting and removing the cross beam 3. The beam can be removed by cutting with a rope saw or by lifting with a 130t truck crane. The beam 3 can be cleaned and terminated on site after being dismantled.
The utility model has the advantages that:
two sets of on the bottom mounting of stand 1 is in C30 concrete strip foundation 4, every group the upper end of stand 1 all welds supporting beam 2, the both ends of crossbeam 3 weld respectively supporting beam 2's upper end, two oblique feet also have corresponding support column 6 to support. According to the structure, the stability of the bridge is guaranteed, and meanwhile, the blocking of the bridge is realized, and under the supporting structure, due to the fact that each block is independently supported, the fixing of each block of the bridge can be realized by utilizing each supporting structure, and each module of the bridge after blocking is removed one by one. The supporting structure can be installed and fixed by utilizing the median strip of the road below the bridge, so that the dismantling mode is fast and safe, the road below the bridge is not influenced, and the smoothness of the ground road can be ensured.
Those of ordinary skill in the art will understand that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A temporary bridge support, comprising:
the concrete strip foundation (4) is horizontally arranged at the middle zoning position of the road below the bridge;
the concrete strip foundation structure comprises two groups of stand columns (1), wherein the two groups of stand columns (1) are vertically fixed on a concrete strip foundation (4), the two groups of stand columns (1) are respectively supported between the concrete strip foundation (4) and the middle part of a bridge, and a gap is arranged between the two groups of stand columns;
the connecting beam (5) is connected between the two groups of upright posts (1);
a support beam (2) welded between the upper end of each column (1) and the deck;
the cross beam (3) is horizontally arranged between the stand columns (1), and two ends of the cross beam are respectively welded at the upper ends of the side walls of different support beams (2);
the supporting columns (6) comprise at least two groups, each group of supporting columns (6) are arranged below the inclined bridge legs respectively, the bottom ends of the supporting columns (6) are uniformly fixed on bridge abutment butt straps on two sides of a road respectively, and supporting blocks (7) are arranged between the top ends of the supporting columns (6) and the inclined bridge legs.
2. The temporary bridge support according to claim 1, wherein each group of the upright posts (1) comprises three upright posts, the three upright posts (1) are arranged in a straight line along the width direction of the bridge, a space is arranged between the upright posts (1) of each group, a connecting beam (5) is further arranged between the upright posts (1) of each group, and two ends of the connecting beam (5) are welded and fixed on the side wall surfaces of different upright posts respectively.
3. A temporary bridge support according to claim 2, wherein said coupling beams (5) comprise two horizontal connecting rods and one inclined connecting rod, wherein one horizontal connecting rod is horizontally connected between the upper ends of two said uprights (1); the other horizontal connecting rod is horizontally connected between the lower ends of the two upright posts (1); two ends of the inclined connecting rod are respectively connected with the two upright posts (1) and arranged between the two horizontal connecting rods connected with the two upright posts (1).
4. A temporary bridge support according to claim 1, wherein there are two support columns (6) per group, and the two support columns (6) are aligned across the width of the bridge.
5. A temporary bridge support according to claim 1, wherein the uprights (1) and the supporting columns (6) are both cylindrical.
6. A temporary bridge support according to any one of claims 1 to 5, wherein the distance between adjacent columns (1) in each set of columns (1) is equal.
7. A temporary bridge support according to claim 6, wherein two sets of said uprights (1) are parallel to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922197296.1U CN211897924U (en) | 2019-12-10 | 2019-12-10 | Temporary bridge support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922197296.1U CN211897924U (en) | 2019-12-10 | 2019-12-10 | Temporary bridge support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211897924U true CN211897924U (en) | 2020-11-10 |
Family
ID=73300233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922197296.1U Expired - Fee Related CN211897924U (en) | 2019-12-10 | 2019-12-10 | Temporary bridge support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211897924U (en) |
-
2019
- 2019-12-10 CN CN201922197296.1U patent/CN211897924U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103866696A (en) | Cast-in-situ support of long-cantilever zero segment of short-pylon cable-stayed bridge | |
| CN210049103U (en) | High-grade high-speed highway bracket spanned by large-span cast-in-place box girder | |
| CN110805305A (en) | Climbing and shifting method for high-rise building | |
| CN211947993U (en) | Support for large-span cast-in-situ bridge construction | |
| CN211897924U (en) | Temporary bridge support | |
| CN109778700B (en) | Cast-in-place trough beam three-point sliding pushing construction method for crossing existing road | |
| CN217078829U (en) | Position structure of bridge pile foundation and subway tunnel | |
| CN114319159B (en) | Ascending ramp dismantling system and construction method | |
| CN110273385B (en) | Method for dismantling cross-line hole cross-concrete box girder | |
| CN108316119B (en) | Steel construction overpass convenient to installation | |
| CN112726426A (en) | Novel movable protective shed of bracket and steel pipe column combined gantry type | |
| CN110924319A (en) | Isolation protection shed frame and construction method | |
| CN207646620U (en) | The movable construction platform of prefabricated wide cut beam slab | |
| CN214656655U (en) | Device is demolishd in installation of interim assembled guardrail of reconstruction extension engineering traffic conversion | |
| CN110593102A (en) | High mound continuous beam construction support | |
| CN216428010U (en) | Cast-in-place beam support of ramp bridge | |
| CN216615545U (en) | Support system for dismantling box girder | |
| CN114182654B (en) | Railway box girder transverse falling device and dismantling construction method | |
| CN216999353U (en) | Assembled pier stud protection platform | |
| CN214497216U (en) | Novel movable protective shed of bracket and steel pipe column combined gantry type | |
| CN214116296U (en) | Bailey cast-in-place support dismantling device | |
| CN219010959U (en) | Multistage bridge construction platform in V-shaped valley hard rock area | |
| CN216864857U (en) | Quick support bracket convenient to cast-in-place roof beam construction | |
| CN220746604U (en) | Cast-in-situ bracket for two-way transverse slope concrete bent cap | |
| CN215669015U (en) | Die carrier device and two bridge integral casting systems of striding for frame bridge construction |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201110 |