CN111395204A - Prestressed cantilever support structure of large cantilever bent cap and construction method - Google Patents
Prestressed cantilever support structure of large cantilever bent cap and construction method Download PDFInfo
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- CN111395204A CN111395204A CN202010344588.8A CN202010344588A CN111395204A CN 111395204 A CN111395204 A CN 111395204A CN 202010344588 A CN202010344588 A CN 202010344588A CN 111395204 A CN111395204 A CN 111395204A
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
- E01D21/10—Cantilevered erection
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
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Abstract
A prestressed cantilever support structure of a large cantilever capping beam comprises a bridge pier, a capping beam and a bearing platform, wherein the bridge pier is positioned between the capping beam and the bearing platform; the bridge pier is characterized in that the bridge piers are symmetrically arranged at two ends of a bearing platform, and support stand columns which are symmetrically arranged are arranged on the side surfaces of the bridge piers; the bottom of the support upright post is supported on the bearing platform, a support cross beam is arranged above the support upright post, and a slope adjusting truss abutting against the bottom of the cover beam is arranged on the support cross beam; the bracket beam is provided with a bracket prestressed cable and a prestressed anchoring device matched with the bracket prestressed cable; compared with the prior art, the large cantilever structure system of the support is realized by tensioning the prestressed cable of the bent cap support, the problem that a support stand column is arranged on a roadway on the ground to interfere with driving can be avoided, the smooth passing of a vehicle under the cantilever position of the bent cap is guaranteed, the internal force control and the displacement control of the support beam can be realized by tensioning the prestressed cable of the support, the construction is convenient, the structure is simple, and the large cantilever structure system of the support is effective and feasible.
Description
Technical Field
The invention belongs to the technical field of road and bridge construction engineering structures, and particularly relates to a prestressed cantilever support structure of a large cantilever bent cap and a construction method.
Background
At present, the support form of the large cantilever bent cap mainly adopts a multi-upright-column continuous beam system, namely, a plurality of upright columns are arranged to be used as a beam support of the bent cap support so as to meet the stress requirement of the support beam. However, the multi-column continuous beam system interferes with the traffic protection band of the ground road under the bridge, the driving vehicles need to avoid the support columns, the ground road under the bridge needs to reduce lanes, and the traffic pressure on the ground is increased. Therefore, it is necessary to develop a new type of large cantilever bent cap support to avoid the stand column of the support from encroaching on the roadway of the ground road, so as to solve the problem of the conflict between the stand column of the support and the roadway of the ground.
Chinese patent No. CN110820561A discloses a large cantilever prestress capping beam bracket device and a construction method, which are characterized by comprising middle support columns supported at the root parts of capping beam cantilevers, wherein the middle support columns are symmetrically arranged at two sides of a capping beam pier, and the bottoms of the middle support columns are supported on a bearing platform where the capping beam pier is located; still including supporting the tip support column at bent cap cantilever tip, the tip support column bottom is supported subaerial through reinforced concrete, middle part support column and tip support column upper end support spandrel girder, the slope truss girder is transferred in the support on the spandrel girder, it supports the bent cap die block to transfer on the slope truss girder.
According to the force bent cap support device and the construction method, the steel pipe support columns with different heights are arranged on the two sides of the bent cap, and extend to the ground along the bottom of the bent cap, so that the steel pipe support columns can interfere with the ground road below the bent cap, the lane arrangement of the ground road below the bent cap is influenced, and the traffic pressure on the ground is increased.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides the prestressed cantilever support structure of the large cantilever bent cap and the construction method, wherein the prestressed cantilever support structure is simple in structure, safe, reliable and convenient to construct and can effectively avoid the communication conflict between the bent cap upright post and the ground road.
In order to achieve the above purposes, the technical scheme adopted by the invention is as follows: a prestressed cantilever support structure of a large cantilever capping beam comprises a bridge pier, a capping beam and a bearing platform, wherein the bridge pier is positioned between the capping beam and the bearing platform; the bridge pier is characterized in that the bridge piers are symmetrically arranged at two ends of a bearing platform, and support stand columns which are symmetrically arranged are arranged on the side surfaces of the bridge piers; the bottom of the support upright post is supported on the bearing platform, a support cross beam is arranged above the support upright post, and a slope adjusting truss abutting against the bottom of the cover beam is arranged on the support cross beam; the support beam is provided with a support prestressed cable and a prestressed anchoring device matched with the support prestressed cable, and the support prestressed cable is arranged along the length direction of the support beam.
As a preferable scheme of the invention, support upright column parallel connection and support upright column diagonal bracing are arranged between support upright columns on the same side of the pier which are oppositely arranged.
As a preferred scheme of the invention, the support upright post is of a spiral steel pipe structure, and the support upright post consists of a support upright post standard part and a plurality of support upright post heightening parts, wherein the support upright post standard part and the support upright post heightening parts are connected by flanges, and adjacent support upright post heightening parts are also connected by flanges.
As a preferable scheme of the invention, the top of the support upright post is provided with an unloading device, and the unloading device is connected with the support cross beam.
As a preferred scheme of the present invention, the support cross beams are located on the support uprights at the same side, and the support uprights arranged oppositely are provided with the support cross beams arranged oppositely.
As a preferable scheme of the invention, a beam horizontal connection support is arranged between the oppositely arranged support beams, support distribution beams are arranged on the oppositely arranged support beams, and the slope adjusting truss is positioned on the support distribution beams.
As a preferable scheme of the invention, a bracket prestressed shock absorber is arranged on the bracket cross beam, and a bracket prestressed cable penetrates through the bracket prestressed shock absorber.
As a preferable scheme of the invention, a building envelope is arranged outside the pier.
A construction method of a prestressed cantilever support structure of a large cantilever bent cap is characterized by comprising the following steps:
step A: presetting a bearing platform in the ground, embedding a pressure-bearing steel plate and foundation bolts on the bearing platform, pouring a pier on the bearing platform, and arranging a containment structure between the pier and a ground road traffic lane;
and B: erecting support stand columns on a bearing platform, wherein the support stand columns are arranged on two sides of a pier, the bottoms of the support stand columns are connected with foundation bolts in a flange mode, the erection of the support stand columns comprises the erection of support stand column heightening parts and support stand column standard parts, the number of the support stand column heightening parts is set according to actual needs, the support stand column heightening parts are connected with the support stand column standard parts through flanges, and adjacent support stand column heightening parts are also connected through flanges;
and C: a bracket upright column parallel connection and a bracket upright column inclined strut are arranged between adjacent bracket upright columns, and an unloading device is arranged at the top of each bracket upright column;
step D: the unloading device is provided with support crossbeams, crossbeams are horizontally connected with one another to form a horizontal connection support so as to strengthen the lateral stability of the support crossbeams, support distribution beams are laid on the crossbeams, and slope adjusting trusses are arranged on the distribution beams.
Step E: mounting a pre-stressed anchoring device and a bracket pre-stressed shock absorber on a bracket cross beam, wherein a bracket pre-stressed cable penetrates through the bracket pre-stressed shock absorber and is mounted between the bracket pre-stressed anchoring devices on two sides;
step F: installing a bottom cover beam die block, a steel reinforcement cage of the cover beam and a side cover beam on the slope-adjusting truss, and performing concrete pouring of the cover beam, wherein in the concrete pouring process, a prestressed cable of the support is tensioned at the position of the prestressed anchoring device of the support in stages;
step G: curing the poured cover beam concrete, tensioning cover beam steel bundles, and releasing the support prestressed cables at stages at the support prestressed anchoring devices in the cover beam steel bundle tensioning process;
step H: dismantling the cover beam bottom die, the cover beam steel reinforcement framework and the cover beam side die; as a preferable mode of the present invention, the method is described.
As a preferable scheme of the invention, the unloading device is of a split bolt or sand cylinder structure.
Compared with the prior art, the invention has the beneficial effects that: through the prestressed cable stretch-draw of bent cap support, realize the big cantilever structure system of support, can avoid setting up the support stand on ground road lane and disturb the driving, guarantee that bent cap cantilever position below keeps leading to the vehicle and smoothly passes to the stretch-draw of accessible support prestressed cable realizes the internal force control and the displacement control of support crossbeam, and convenient construction, simple structure is effectively feasible.
Meanwhile, the support stand column is connected with the support stand column heightening part in a splicing manner through the support stand column standard part, so that the height of the support stand column can be set according to actual needs, and the support stand column is convenient to erect and construct.
Drawings
FIG. 1 is a schematic cross-sectional view of the present invention;
FIG. 2 is a side schematic view of the present invention;
FIG. 3 is a schematic plan view of the present invention;
reference numbers in the figures: the device comprises a pier 101, a capping beam 102, a bearing platform 103, a building enclosure 104, a ground road traffic lane 105, a support upright 201, a support upright standard part 202, a support upright heightening part 203, a support upright parallel connection 204, a support upright diagonal support 205, an unloading device 206, a support cross beam 301, a support distribution beam 302, a slope adjusting truss 303, a cross beam horizontal connection support 304, a support prestress anchoring device 401, a support prestress cable 402 and a support prestress shock absorber 403.
Detailed Description
The following describes embodiments of the present invention in detail with reference to the accompanying drawings.
As shown in fig. 1-3, the prestressed cantilever support structure of a large cantilever capping beam comprises a bridge pier 101, a capping beam 102 and a bearing platform 103, wherein the bridge pier 101 is positioned between the capping beam 102 and the bearing platform 103; the bridge piers 101 are symmetrically arranged at two ends of the bearing platform 103, and the side surfaces of the bridge piers 101 are provided with symmetrically arranged support upright columns 201; the bottom of the support upright column 201 is supported on the bearing platform 103, a support cross beam 301 is arranged above the support upright column 201, and a slope adjusting truss 303 abutting against the bottom of the cover beam 102 is arranged on the support cross beam 301; the bracket crossbeam 301 is provided with a bracket prestressed cable 402 and a prestressed anchoring device 401 matched with the bracket prestressed cable 402, and the bracket prestressed cable 402 is arranged along the length direction of the bracket crossbeam 301.
The bearing platform 103 is arranged under the ground, the bottoms of the piers 101 and the support upright columns 201 are arranged on the bearing platform 103, pre-buried pressure-bearing steel plates and foundation bolts are arranged in the bearing platform 103, the two piers 101 with the same size are arranged on the bearing platform 103, two support upright columns 201 are arranged on two sides of one pier 101, 4 support upright columns 201 are arranged on the bearing platform 103, the 4 support upright columns 201 are arranged at 4 corners of the bearing platform 103, and the 4 support upright columns 201 are arranged in an array mode.
The tops of the support upright posts 201 are abutted to the support cross beams 301, one support cross beam 301 corresponds to two support upright posts 201, two support cross beams 301 which are arranged in parallel are arranged above the bearing platform 103, the size of the slope adjusting truss 303 is set according to the size of the bottom of the cover beam 102, the slope adjusting truss 303 is arranged along the length direction of the cover beam 102, and the tops of the slope adjusting truss 303 are abutted to the whole bottom of the cover beam 102.
Be equipped with support stand column parallel connection 204 and support stand column bracing 205 between relative homonymy support stand 201 of pier 101 that sets up, including two stand column parallel connection 204 and many support stand column bracing 205 of high difference between homonymy support stand 201, support stand column bracing 205 slope sets up between two stand column parallel connection 204, many support stand column bracing 205 connect gradually, connect through welded fastening between many support stand column bracing 205, and also connect through welded fastening between support stand column parallel connection 204 and the support stand column bracing 205, and also connect through welded fastening between support stand column parallel connection 204 and support stand column bracing 205 and the support stand column 201.
The support upright column 201 is of a spiral steel pipe structure, the support upright column 201 is composed of a support upright column standard part 202 and a plurality of support upright column heightening parts 203, the support upright column standard part 202 and the support upright column heightening parts 203 are connected through flanges, and adjacent support upright column heightening parts 203 are also connected through flanges.
The number of the bracket column heightening pieces 203 is set according to actual needs, and the number of the bracket column heightening pieces 203 is set according to the required height of the bracket column 201 and the height of the cover beam 102.
The top of the support upright column 201 is provided with an unloading device 206, the unloading device 206 is connected with the support cross beam 301, the unloading device 206 can adopt a split bolt or a sand cylinder structure, the unloading device 206 is fixedly connected with the top of the support upright column 201, and the top of the unloading device 206 is abutted against the support cross beam 301.
The support cross beam 301 is located on the support upright columns 201 on the same side, the support cross beams 301 which are oppositely arranged are arranged on the support upright columns 201 which are oppositely arranged, cross beam horizontal connection supports 304 are arranged between the support cross beams 301 which are oppositely arranged so as to strengthen the lateral stability of the support cross beam, the support cross beam 301 which is oppositely arranged is provided with a support distribution beam 302, the slope adjusting truss 303 is located on the support distribution beam 302, the support cross beam 301 is provided with a support prestress shock absorber 403, and the support prestress cable 402 penetrates through the support prestress shock absorber 403.
The support prestressed cable 402 can adopt structures such as a steel strand, a finish rolling twisted steel bar and a parallel steel wire cable, the support prestressed cable 402 is arranged in a proper length range according to the stress action of the support cross beam 301 to ensure the stress safety of the support cross beam, a prestressed shock absorber 403 is installed at a proper position on the support cross beam 301, the support prestressed cable 402 penetrates through the prestressed shock absorber 403 to ensure the smooth line shape of the support prestressed cable 402, the prestressed shock absorber 403 is installed at a proper position on the support cross beam 301, and the support prestressed cable 402 penetrates through the prestressed shock absorber 403 to ensure the smooth line shape of the support prestressed cable 402.
The outer side of the pier 101 is provided with a building envelope 104, and the building envelope 104 is arranged between the outer side of the pier 101 and the ground road lane 105 so as to ensure that the construction area and the ground road lane 105 do not interfere with each other.
In the actual production process, the following steps are included:
step A: the construction method comprises the steps of presetting a bearing platform 103 in the ground, embedding a pressure-bearing steel plate and anchor bolts on the bearing platform 103, pouring a pier 101 on the bearing platform 103, and arranging a containment structure 104 between the pier 101 and a ground road lane 105 to ensure that a construction area and the ground road lane 105 do not interfere with each other.
And B: the support upright 201 is erected on the bearing platform 103, the support upright 201 is arranged on two sides of the pier 101, the bottom of the support upright 201 is in flange connection with foundation bolts, the erection of the support upright 201 comprises erection of a support upright heightening part 203 and a support upright standard part 202, the number of the support upright heightening parts 203 is set according to actual needs, the support upright heightening parts 203 and the support upright standard parts 202 are connected through flanges, adjacent support upright heightening parts 203 are also connected through flanges, and the height of the support upright 201 is smaller than that of the pier 101.
And C: the support column parallel connection 204 and the support column diagonal bracing 205 are installed between adjacent support 201 columns, the unloading device 206 is installed at the top of the support column, two column parallel connections 204 and a plurality of support column diagonal bracing 205 with different heights are included between the support columns 201 on the same side, the support column diagonal bracing 205 is obliquely arranged between the two column parallel connections 204, the support column diagonal bracing 205 is sequentially connected, the support column diagonal bracing 205 is fixedly connected by welding, the support column parallel connections 204 and the support column diagonal bracing 205 are also fixedly connected by welding with the support columns 201, and the unloading device 206 is of a split bolt or a sand cylinder structure.
Step D: the unloading device 206 is provided with bracket cross beams 301, cross beam horizontal connection supports 304 are arranged between the bracket cross beams 301 to strengthen the lateral stability of the bracket cross beams 301, bracket distribution beams 302 are laid on the cross beams, and slope adjusting trusses 303 are arranged on the distribution beams.
Step E: the prestressed anchoring device 401 and the bracket prestressed shock absorber 403 are installed on the bracket beam 301, the bracket prestressed cable 402 penetrates through the bracket prestressed shock absorber 403, and the bracket prestressed cable 402 is installed between the bracket prestressed anchoring devices 401 on two sides.
The support prestressed cable 402 can adopt structures such as a steel strand, a finish rolling twisted steel bar and a parallel steel wire cable, the support prestressed cable 402 is arranged in a proper length range according to the stress action of the support cross beam 301 to ensure the stress safety of the support cross beam, a prestressed shock absorber 403 is installed at a proper position on the support cross beam 301, the support prestressed cable 402 penetrates through the prestressed shock absorber 403 to ensure the smooth line shape of the support prestressed cable 402, the prestressed shock absorber 403 is installed at a proper position on the support cross beam 301, and the support prestressed cable 402 penetrates through the prestressed shock absorber 403 to ensure the smooth line shape of the support prestressed cable 402.
Step F: installing a capping beam bottom die, a capping beam steel reinforcement framework and a capping beam side die on the slope adjusting truss 303, and performing concrete pouring on the capping beam 102, wherein in the concrete pouring process, a support prestressed cable 402 is tensioned at the position of a support prestressed anchoring device 401 in stages;
step G: and curing the poured capping beam 102 concrete, tensioning the capping beam 102 steel bundles, namely tensioning the bracket prestressed cables 402, and releasing the bracket prestressed cables 402 at the positions of the bracket prestressed anchoring devices 401 in stages in the process of tensioning the capping beam 102 steel bundles.
Step H: and dismantling the bottom die of the capping beam, the steel reinforcement cage of the capping beam and the side die of the capping beam.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention; thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Although the reference numerals in the figures are used more here: the construction method comprises the following steps of 1, a pier 101, a capping beam 102, a bearing platform 103, a space enclosing structure 104, a ground road traffic lane 105, a support upright 201, a support upright standard part 202, a support upright heightening part 203, a support upright parallel connection 204, a support upright diagonal bracing 205, an unloading device 206, a support cross beam 301, a support distribution beam 302, a slope adjusting truss 303, a cross beam horizontal connection bracing 304, a support pre-stressed anchoring device 401, a support pre-stressed cable 402, a support pre-stressed shock absorber 403 and the like, but the possibility of using other terms is not excluded; these terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.
Claims (10)
1. A prestressed cantilever support structure of a large cantilever capping beam comprises a pier (101), a capping beam (102) and a bearing platform (103), wherein the pier (101) is positioned between the capping beam (102) and the bearing platform (103); the bridge pier is characterized in that the bridge piers (101) are symmetrically arranged at two ends of a bearing platform (103), and support upright columns (201) are symmetrically arranged on the side surfaces of the bridge piers (101); the bottom of the support upright post (201) is supported on the bearing platform (103), a support cross beam (301) is arranged above the support upright post (201), and a slope adjusting truss (303) abutting against the bottom of the cover beam (102) is arranged on the support cross beam (301); the support beam (301) is provided with a support prestressed cable (402) and a prestressed anchoring device (401) matched with the support prestressed cable (402), and the support prestressed cable (402) is arranged along the length direction of the support beam (301).
2. The prestressed cantilever scaffold structure of a large cantilever capping beam according to claim 1, wherein a scaffold upright parallel connection (204) and a scaffold upright diagonal brace (205) are arranged between the scaffold uprights (201) at the same side of the pier (101) which are oppositely arranged.
3. The prestressed cantilever beam support structure of a large cantilever capping beam according to claim 1, wherein the support column (201) is a spiral steel pipe structure, and the support column (201) is composed of a support column standard member (202) and a plurality of support column heightening members (203), the support column standard member (202) and the support column heightening members (203) are connected by flanges, and the adjacent support column heightening members (203) are connected by flanges.
4. The prestressed cantilever beam structure of a large cantilever capping beam according to claim 3, wherein the top of the bracket upright post (201) is provided with an unloading device (206), and the unloading device (206) is connected with the bracket beam (301).
5. The prestressed cantilever beam structure of a large cantilever capping beam according to claim 1, wherein the bracket beams (301) are located on the bracket uprights (201) at the same side, and the oppositely arranged bracket uprights (201) are provided with the oppositely arranged bracket beams (301).
6. The prestressed cantilever beam support structure of a large cantilever capping beam according to claim 5, wherein a beam horizontal connection support (304) is provided between the oppositely arranged support beams (301), a support distribution beam (302) is provided on the oppositely arranged support beams (301), and the slope-adjusting truss (303) is positioned on the support distribution beam (302).
7. The prestressed cantilever beam structure of a large cantilever capping beam according to claim 6, wherein the bracket beam (301) is provided with a bracket prestressed bumper (403), and the bracket prestressed cable (402) passes through the bracket prestressed bumper (403).
8. The prestressed outrigger structure of a large cantilever capping beam according to claim 1, wherein a containment structure (104) is provided outside the pier (101).
9. A construction method of a prestressed cantilever support structure of a large cantilever bent cap is characterized by comprising the following steps:
step A: presetting a bearing platform (103) in the ground, embedding a pressure-bearing steel plate and foundation bolts on the bearing platform (103), pouring a pier (101) on the bearing platform (103), and arranging a containment structure (104) between the pier (101) and a ground road traffic lane (105);
and B: erecting support upright posts (201) on a bearing platform (103), wherein the support upright posts (201) are arranged on two sides of a pier (101), the bottoms of the support upright posts (201) are in flange connection with foundation bolts, the erection of the support upright posts (201) comprises the erection of support upright post heightening parts (203) and support upright post standard parts (202), the number of the support upright post heightening parts (203) is set according to actual requirements, the support upright post heightening parts (203) are connected with the support upright post standard parts (202) through flanges, and adjacent support upright post heightening parts (203) are also connected through flanges;
and C: a bracket upright column parallel connection (204) and a bracket upright column diagonal brace (205) are arranged between adjacent bracket (201) upright columns, and an unloading device (206) is arranged at the top of each bracket upright column;
step D: the unloading device (206) is provided with support crossbeams (301), crossbeam horizontal connection struts (304) are arranged between the support crossbeams (301) to strengthen the lateral stability of the support crossbeams (301), support distribution beams (302) are laid on the crossbeams, and slope adjusting trusses (303) are arranged on the distribution beams.
Step E: the method comprises the following steps that a pre-stressed anchoring device (401) and a bracket pre-stressed shock absorber (403) are installed on a bracket cross beam (301), a bracket pre-stressed cable (402) penetrates through the bracket pre-stressed shock absorber (403), and the bracket pre-stressed cable (402) is installed between the bracket pre-stressed anchoring devices (401) on two sides;
step F: installing a capping beam bottom die, a capping beam steel reinforcement framework and a capping beam side die on the slope adjusting truss (303), pouring concrete of the capping beam (102), and stretching a bracket prestressed cable (402) at a position of a bracket prestressed anchoring device (401) in the concrete pouring process;
step G: curing the poured concrete of the cover beam (102), tensioning the steel bundle of the cover beam (102), and releasing the bracket prestressed cable (402) at the position of the bracket prestressed anchoring device (401) in stages in the tensioning process of the steel bundle of the cover beam (102); step H: and dismantling the bottom die of the capping beam, the steel reinforcement cage of the capping beam and the side die of the capping beam.
10. The construction method of the prestressed cantilever scaffold structure of a large cantilever capping beam according to claim 9, wherein the unloading device (206) is a split bolt or sand cylinder structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010344588.8A CN111395204A (en) | 2020-04-27 | 2020-04-27 | Prestressed cantilever support structure of large cantilever bent cap and construction method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010344588.8A CN111395204A (en) | 2020-04-27 | 2020-04-27 | Prestressed cantilever support structure of large cantilever bent cap and construction method |
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| CN111395204A true CN111395204A (en) | 2020-07-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112593485A (en) * | 2020-12-11 | 2021-04-02 | 保利长大工程有限公司 | Steel tower cable-stayed support for large cantilever bent cap |
-
2020
- 2020-04-27 CN CN202010344588.8A patent/CN111395204A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112593485A (en) * | 2020-12-11 | 2021-04-02 | 保利长大工程有限公司 | Steel tower cable-stayed support for large cantilever bent cap |
| CN112593485B (en) * | 2020-12-11 | 2021-07-23 | 保利长大工程有限公司 | Steel tower cable-stayed support for large cantilever bent cap |
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Inventor after: Liu Fengzhou Inventor after: Jiang Fu Inventor after: Wang Bin Inventor before: Liu Fengzhou Inventor before: Jiang Fu Inventor before: Wang Bin Inventor before: Liu Hongyu Inventor before: Yu Wei Inventor before: Dong Boning Inventor before: Yang Qibiao Inventor before: Fan Lingfeng Inventor before: Wu Yongcheng |