CN113338164A - 0# block bolting bracket structure of double-limb thin-wall high-pier rigid-frame continuous beam - Google Patents
0# block bolting bracket structure of double-limb thin-wall high-pier rigid-frame continuous beam Download PDFInfo
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- CN113338164A CN113338164A CN202110483612.0A CN202110483612A CN113338164A CN 113338164 A CN113338164 A CN 113338164A CN 202110483612 A CN202110483612 A CN 202110483612A CN 113338164 A CN113338164 A CN 113338164A
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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
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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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- 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
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to the technical field of constructional engineering, in particular to a 0# block bolted bracket structure of a double-limb thin-wall high-pier rigid frame continuous beam, which can be suitable for a structure with a complex pier volume joint prestress system, a structure with strict requirements on pier body steel bar construction quality of a main pier of the continuous beam and a structure with large 0# block load; the adopted materials and equipment can be recycled after the construction of the No. 0 block is finished, and the method is economic and environment-friendly; the anchor point pre-buried bolting steel plate on the outside, the anchor point pre-buried bolting steel plate under the outside, the anchor point pre-buried bolting steel plate on the inside, the anchor point pre-buried bolting steel plate under the outside, the HW type steel triangular bracket on the inside, the high-strength bolt group, the transverse reinforcing channel steel and the double-limb thin-wall pier are included, the anchor point pre-buried bolting steel plate on the outside and the anchor point pre-buried bolting steel plate under the outside are both provided with an outside outer steel plate and an outside inner steel plate, and the outside outer steel plate and the outside inner steel plate are connected through the high-strength bolt group.
Description
Technical Field
The invention relates to the technical field of constructional engineering, in particular to a 0# block bolting bracket structure of a double-limb thin-wall high-pier rigid frame continuous beam.
Background
The bracket structure of the No. 0 block of the bridge has various structural forms, and the currently common bracket and pier body connecting form is that the bracket and the pier body are connected by adopting a pre-embedded bracket method, a profile steel opposite pulling method, a finish rolling screw-thread steel opposite pulling method, a pre-embedded anchor plate anchor bar method and the like; the connection form needs to cut off main reinforcements of the pier body or is only limited to anchoring points on the brackets or is not suitable for limitations such as large load of a No. 0 block and the like, and the application range is limited; especially, the main reinforcements of the pier body at the combination part of the rigid frame continuous beam pier beam are not allowed to be cut off or vertical prestressed reinforcements exist, so that the finding of a bracket structure with wider applicability is particularly important.
Disclosure of Invention
In order to solve the technical problems, the invention provides a bracket structure which can be suitable for a structure with a complex pier quantity combination part prestress system, a structure with strict requirements on the pier body steel bar construction quality of a main pier of a continuous beam and a structure with a large 0# block load; the adopted materials and equipment can be recycled after the construction of the 0# block, and the bracket structure is economical and environment-friendly and has the bolt connection of the 0# block of the double-limb thin-wall high-pier rigid-frame continuous beam.
The invention discloses a 0# block bolting bracket structure of a double-limb thin-wall high-pier rigid-structure continuous beam, which comprises an outer-side upper anchor point embedded bolting steel plate, an outer-side lower anchor point embedded bolting steel plate, an inner-side upper anchor point embedded bolting steel plate, an inner-side lower anchor point embedded bolting steel plate, an outer-side HW steel triangular bracket, an inner-side HW steel triangular bracket, a high-strength bolt group, transverse reinforcing channel steel and double-limb thin-wall piers, wherein the outer-side upper anchor point embedded bolting steel plate and the outer-side lower anchor point embedded bolting steel plate are respectively provided with an outer-side outer steel plate and an outer-side inner steel plate, the outer-side outer steel plate and the outer-side inner steel plate are connected through the high-strength bolt group, a plurality of groups of anchoring channel steel are arranged in the double-limb thin-wall piers, the anchoring channel steel is connected with the outer-side inner steel plate through welding, the anchoring channel steel, the outer-side inner steel plate and the inner-side inner steel plate are The outer steel sheet welding in outside, transversely consolidate the channel-section steel and install on a plurality of groups outside HW shaped steel triangular brackets, all be provided with the outer steel sheet in inboard and the inboard steel sheet in on the pre-buried bolt steel sheet of anchor point under inboard and the pre-buried bolt steel sheet of anchor point on the inboard, the anchor channel-section steel passes through welded connection with inboard steel sheet in, connect through high strength bolt crowd between the outer steel sheet of inboard and the inboard steel sheet, a plurality of groups inboard HW shaped steel triangular brackets and inboard on the pre-buried bolt steel sheet of anchor point and the inboard outer steel sheet welding of inboard on the pre-buried bolt steel sheet of anchor point down, transversely consolidate the channel-section steel and install on a plurality of groups inboard HW shaped steel triangular brackets.
According to the 0# block bolting bracket structure of the double-limb thin-wall high-pier rigid frame continuous beam, the outer side outer steel plate and the outer side inner steel plate are connected with the inner side outer steel plate and the inner side inner steel plate through the friction type 10.9-level high-strength bolt group.
The 0# block bolting bracket structure of the double-limb thin-wall high-pier rigid frame continuous beam further comprises a baffle, and the end part of the anchoring channel steel is welded by the baffle.
The invention relates to a 0# block bolting bracket structure of a double-limb thin-wall high-pier rigid frame continuous beam, wherein an outer HW type steel triangular bracket is integrally machined and welded with an outer upper anchor point pre-embedded bolting steel plate and an outer lower anchor point pre-embedded bolting steel plate before pre-installation.
According to the 0# block bolting bracket structure of the double-limb thin-wall high-pier rigid frame continuous beam, the inner HW type triangular bracket is integrally machined and welded with the inner outer steel plate on the inner upper anchor point pre-embedded bolting steel plate and the inner lower anchor point pre-embedded bolting steel plate before pre-installation.
According to the 0# block bolting bracket structure of the double-limb thin-wall high-pier rigid frame continuous beam, the welding seam is a fillet weld, and the grade of the welding seam is not less than two grades.
According to the 0# block bolted bracket structure of the double-limb thin-wall high-pier rigid frame continuous beam, the welding seam of the steel structure is a combination of butt joint and fillet weld, and the grade of the welding seam is not less than two grades.
According to the 0# block bolting bracket structure of the double-limb thin-wall high-pier rigid frame continuous beam, the outer upper anchor point embedded bolting steel plate, the outer lower anchor point embedded bolting steel plate, the inner upper anchor point embedded bolting steel plate, the inner lower anchor point embedded bolting steel plate, the outer HW section steel triangular bracket and the inner HW section steel triangular bracket are all made of Q345 materials.
According to the 0# block bolting bracket structure of the double-limb thin-wall high-pier rigid frame continuous beam, the sizes of the outer side outer steel plate, the outer side inner steel plate, the inner side outer steel plate and the inner side inner steel plate are 620mm multiplied by 860mm multiplied by 20 mm.
According to the 0# block bolting bracket structure of the double-limb thin-wall high-pier rigid frame continuous beam, the size of the baffle plate is a steel plate with the size of 90mm multiplied by 10mm multiplied by 170mm, and the material is Q235.
Compared with the prior art, the invention has the beneficial effects that: the construction of the anchoring channel steel, the outer side inner steel plate and the inner side inner steel plate and the pier body is synchronously carried out, before the concrete of the pier body is poured to the corresponding elevation of the embedded part, the anchoring channel steel, the outer side inner steel plate and the inner side inner steel plate are simultaneously installed when the reinforcing steel bars of the pier body are installed, the unbalanced bending moment of the pier body is reduced by effectively connecting the whole stress between the double limbs of the main pier, the I-shaped steel positions of the embedded part of the outer side inner steel plate and the inner side inner steel plate are staggered by timing, or the main reinforcement can be properly adjusted, after the embedded part is installed, the embedded part and the concrete of the pier body are simultaneously poured, and the maintenance is carried out after the pouring is finished, the bracket structure part of the invention adopts the assembly and the assembly, the bolting connection part is installed on site, the requirement on operators is low, the material equipment is simple, and no professional precise instrument is needed, the bracket structure can be suitable for the structure with the complicated prestress system of the pier body combination part, and is suitable for the structure with the strict requirement on the construction reinforcing steel bar quality of the main pier body of the continuous beam, the construction method is suitable for the structure with the large load of the 0# block, can be recycled after the construction of the 0# block is finished, and is economic and environment-friendly.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the pre-embedded anchoring section steel of the present invention;
FIG. 3 is a schematic view of the construction of the bolted steel plate of the invention;
FIG. 4 is a schematic view of a partial enlarged structure of A of the present invention;
FIG. 5 is a partial enlarged structural view of B of the present invention;
in the drawings, the reference numbers: 1. anchoring a pre-buried bolting steel plate on the outer side; 2. anchoring a pre-buried bolting steel plate on the outer side; 3. anchoring a pre-buried bolting steel plate on the inner side; 4. embedding a bolting steel plate at an inner lower anchor point; 5. an outside HW profile triangular bracket; 6. inside HW shaped steel triangular bracket; 7. a high-strength bolt group; 8. transversely reinforcing channel steel; 9. anchoring the channel steel; 10. a baffle plate; 11. an outer steel plate; 12. an outer inner steel plate; 13. double-limb thin-wall piers; 14. an inner outer steel plate; 15. and an inner steel plate.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
As shown in fig. 1 to 5, the 0# block bolting bracket structure of the double-limb thin-wall high-pier rigid frame continuous beam comprises an outer upper anchor point pre-embedded bolting steel plate 1, an outer lower anchor point pre-embedded bolting steel plate 2, an inner upper anchor point pre-embedded bolting steel plate 3, an inner lower anchor point pre-embedded bolting steel plate 4, an outer HW steel triangular bracket 5, an inner HW steel triangular bracket 6, a high-strength bolt group 7, a transverse reinforcing channel steel 8 and double-limb thin-wall piers 13, wherein the outer upper anchor point pre-embedded bolting steel plate 1 and the outer lower anchor point pre-embedded bolting steel plate 2 are respectively provided with an outer steel plate 11 and an outer inner steel plate 12, the outer steel plate 11 and the outer inner steel plate 12 are connected through the high-strength bolt group 7, a plurality of groups of anchoring channel steels 9 are arranged inside the double-limb thin-wall piers 13, the anchoring channel steels 9 are connected with the outer inner steel plate 12 by welding, and the outer inner steel plate 12 and the inner steel plate 15 are respectively arranged inside the double-limb thin-wall piers 13, a plurality of groups of outside HW section steel triangular brackets 5 are welded with outside outer steel plates 11 on an outside upper anchor point embedded bolting steel plate 1 and an outside lower anchor point embedded bolting steel plate 2, transverse reinforcing channel steel 8 is installed on the groups of outside HW section steel triangular brackets 5, the inside upper anchor point embedded bolting steel plate 3 and the inside lower anchor point embedded bolting steel plate 4 are both provided with an inside outer steel plate 14 and an inside inner steel plate 15, an anchoring channel steel 9 is connected with the inside inner steel plate 15 through welding, the inside outer steel plate 14 is connected with the inside inner steel plate 15 through a high-strength bolt group 7, a plurality of groups of inside HW section steel triangular brackets 6 are welded with the inside upper anchor point embedded bolting steel plate 3 and the inside outer steel plate 14 on the inside lower anchor point embedded bolting steel plate 4, and the transverse reinforcing channel steel 8 is installed on the groups of inside HW section steel triangular brackets 6; the construction of the anchoring channel steel 9, the outer inner steel plate 12 and the inner steel plate 15 is carried out synchronously with the construction of the pier body, before the concrete of the pier body is poured to the corresponding elevation of the embedded part, the anchoring channel steel 9, the outer inner steel plate 12 and the inner steel plate 15 are simultaneously installed when the reinforcing steel bars of the pier body are installed, the unbalanced bending moment of the pier body is reduced by effectively connecting the whole stress between the two limbs of the main pier, the main bars are staggered when the I-shaped steel positions of the embedded part of the outer inner steel plate 12 and the inner steel plate 15 are arranged, or the main bars can be properly adjusted, after the embedded part is installed, the concrete of the pier body is simultaneously poured, and the maintenance is carried out after the pouring is finished, the bracket structure part of the invention adopts the assembly and the bolting connection part to be installed on site, has low requirement on operators, the material equipment is simple, the professional precise instruments are not needed, the bracket structure can be suitable for the structure with the complicated prestress system of the pier volume combination part, and is suitable for the structure with the strict requirement on the construction of the reinforcing steel bars of the pier body of the continuous beam, the construction method is suitable for the structure with the large load of the 0# block, can be recycled after the construction of the 0# block is finished, and is economic and environment-friendly.
In the above embodiment, the outer steel plate 11 and the outer inner steel plate 12 are preferably connected to the inner outer steel plate 14 and the inner steel plate 15 by a friction type 10.9-class high-strength bolt group 7.
Preferably, the anchor channel steel further comprises a baffle plate 10, and the end part of the anchor channel steel 9 is welded by the baffle plate 10.
Preferably, the outer HW section triangular bracket 5 is integrally welded to the outer upper anchor point embedded bolting steel plate 1 and the outer lower anchor point embedded bolting steel plate 2 before pre-installation by machining.
Preferably, the inside HW section triangular bracket 6 is integrally welded to the inside outer steel plate 14 on the inside upper anchor point embedded bolting steel plate 3 and the inside lower anchor point embedded bolting steel plate 4 before pre-installation.
Preferably, the welding seam is a fillet weld, and the grade of the welding seam is not less than two.
Preferably, the welding seam of the steel structure is a combination of butt joint and fillet welding, and the grade of the welding seam is not less than two grades.
Preferably, in the above embodiment, the outer upper anchor point embedded bolting steel plate 1, the outer lower anchor point embedded bolting steel plate 2, the inner upper anchor point embedded bolting steel plate 3, the inner lower anchor point embedded bolting steel plate 4, the outer HW type triangular bracket 5 and the inner HW type triangular bracket 6 are all made of Q345.
In the above embodiment, the dimensions of the outer steel plate 11, the outer inner steel plate 12, the inner outer steel plate 14, and the inner steel plate 15 are preferably 620mm × 860mm × 20 mm.
In the above embodiment, the baffle 10 is preferably made of a steel plate having dimensions of 90mm × 10mm × 170mm, and is made of Q235.
According to the 0# block bolting bracket structure of the double-limb thin-wall high-pier rigid frame continuous beam, when the structure works, the construction of the anchoring channel steel 9, the outer side inner steel plate 12 and the inner side inner steel plate 15 and a pier body is carried out synchronously, when pier body concrete is poured to the corresponding elevation of an embedded part, the anchoring channel steel 9, the outer side inner steel plate 12 and the inner side inner steel plate 15 are installed simultaneously when pier body reinforcing steel bars are installed, the unbalanced bending moment of the pier body is reduced by effectively connecting the whole body between the double limbs of the main pier, the main bars are staggered when the I-shaped steel positions of the embedded part of the outer side inner steel plate 12 and the inner side inner steel plate 15 are set, or the main bars can be properly adjusted, after the embedded part is installed, the main bars are poured simultaneously with pier body concrete, maintenance is carried out after the pouring is finished, and the outer side outer steel plate 11, the inner side outer steel plate 14, the outer side HW triangular bracket 5 and the inner HW triangular bracket 6 are installed.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A0 # block bolting bracket structure of a double-limb thin-wall high-pier rigid-frame continuous beam is characterized by comprising an outer-side upper anchor point embedded bolting steel plate (1), an outer-side lower anchor point embedded bolting steel plate (2), an inner-side upper anchor point embedded bolting steel plate (3), an inner-side lower anchor point embedded bolting steel plate (4), an outer-side HW steel triangular bracket (5), an inner-side HW steel triangular bracket (6), a high-strength bolt group (7), transverse reinforcing channel steel (8) and double-limb thin-wall piers (13), wherein the outer-side upper anchor point embedded bolting steel plate (1) and the outer-side lower anchor point embedded bolting steel plate (2) are respectively provided with an outer-side outer steel plate (11) and an outer-side inner steel plate (12), the outer-side outer steel plate (11) and the outer-side inner steel plate (12) are connected through the high-strength bolt group (7), and a plurality of groups of anchoring channel steel (9) are arranged inside the double-limb thin-wall piers (13), the anchor channel steel (9) is connected with the outer side inner steel plate (12) in a welding manner, the anchor channel steel (9), the outer side inner steel plate (12) and the inner side inner steel plate (15) are all installed inside the double-limb thin-wall pier (13), a plurality of groups of outer side HW type steel triangular brackets (5) are welded with the outer side outer steel plates (11) on the outer side upper anchor point embedded bolting steel plate (1) and the outer side lower anchor point embedded bolting steel plate (2), the transverse reinforcing channel steel (8) is installed on the groups of outer side HW type steel triangular brackets (5), the inner side outer steel plate (14) and the inner side inner steel plate (15) are arranged on the inner side upper anchor point embedded bolting steel plate (3) and the inner side lower anchor point embedded bolting steel plate (4), the anchor channel steel (9) is connected with the inner side inner steel plate (15) in a welding manner, and the inner side outer steel plate (14) and the inner side inner steel plate (15) are connected through a high-strength bolt group (7), the inner HW type steel triangular brackets (6) are welded with inner outer steel plates (14) on the inner upper anchor point embedded bolting steel plates (3) and the inner lower anchor point embedded bolting steel plates (4), and the transverse reinforcing channel steel (8) is installed on the inner HW type steel triangular brackets (6) in the groups.
2. The double-limb thin-wall high-pier rigid frame continuous beam No. 0 bolting bracket structure according to claim 1, characterized in that the outer steel plate (11) and the outer inner steel plate (12) are connected with the inner outer steel plate (14) and the inner steel plate (15) through friction type high-strength bolt groups (7) of 10.9 grades.
3. The bolted bracket structure of a 0# block of a double-limb thin-wall high-pier rigid-frame continuous beam as claimed in claim 1, characterized by further comprising a baffle plate (10), wherein the end part of the anchoring channel steel (9) is welded by the baffle plate (10).
4. The 0# block bolting bracket structure of a double-limb thin-wall high-pier rigid frame continuous beam according to claim 1, wherein said outside HW steel triangular bracket (5) is integrally welded with outside outer steel plates (11) on outside upper anchor point pre-embedded bolting steel plates (1) and outside lower anchor point pre-embedded bolting steel plates (2) before pre-installation.
5. The 0# block bolting bracket structure for a double-limb thin-wall high-pier rigid frame continuous beam according to claim 1, wherein said inside HW steel triangular bracket (6) is integrally welded with the inside outer steel plate (14) on the inside upper anchor point pre-embedded bolting steel plate (3) and the inside lower anchor point pre-embedded bolting steel plate (4) before pre-installation.
6. The bolted bracket structure of a double-limb thin-wall high-pier rigid-frame continuous beam No. 0 block as claimed in claim 1, wherein the welding seam is a fillet weld, and the grade of the welding seam is not less than two.
7. The bolted bracket structure of 0# block of double-limb thin-wall high-pier rigid-frame continuous beam of claim 1, wherein the welding seam of the steel structure is a combination of butt joint and fillet weld, and the grade of the welding seam is not less than two.
8. The 0# block bolting bracket structure of a double-limb thin-wall high-pier rigid frame continuous beam according to claim 1, wherein the outer upper anchor point embedded bolting steel plate (1), the outer lower anchor point embedded bolting steel plate (2), the inner upper anchor point embedded bolting steel plate (3), the inner lower anchor point embedded bolting steel plate (4), the outer HW type steel triangular bracket (5) and the inner HW type steel triangular bracket (6) are all made of Q345.
9. A double-limb thin-walled high-pier continuous beam # 0 block bolting tray structure according to claim 1, characterized in that the dimensions of said outer steel plate (11), outer inner steel plate (12), inner outer steel plate (14) and inner steel plate (15) are 620mm x 860mm x 20 mm.
10. A double-limb thin-walled high-pier continuous beam # 0 block bolting tray structure according to claim 1, characterized in that said baffle (10) is a steel plate with the dimensions of 90mm x 10mm x 170mm and is made of Q235.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110483612.0A CN113338164A (en) | 2021-04-30 | 2021-04-30 | 0# block bolting bracket structure of double-limb thin-wall high-pier rigid-frame continuous beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110483612.0A CN113338164A (en) | 2021-04-30 | 2021-04-30 | 0# block bolting bracket structure of double-limb thin-wall high-pier rigid-frame continuous beam |
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| Publication Number | Publication Date |
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| CN113338164A true CN113338164A (en) | 2021-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110483612.0A Pending CN113338164A (en) | 2021-04-30 | 2021-04-30 | 0# block bolting bracket structure of double-limb thin-wall high-pier rigid-frame continuous beam |
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| CN (1) | CN113338164A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114808667A (en) * | 2022-05-30 | 2022-07-29 | 中建七局交通建设有限公司 | Supporting structure suitable for No. 0 block of rigid frame bridge and construction method of supporting structure |
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| CN204000617U (en) * | 2014-06-16 | 2014-12-10 | 浙江兴土桥梁临时钢结构工程有限公司 | Bolt bracket |
| CN207452737U (en) * | 2017-11-20 | 2018-06-05 | 中铁二十局集团第一工程有限公司 | Large span rigid frame-continuous girder bridge pier pier top bracket |
| CN108660913A (en) * | 2018-05-23 | 2018-10-16 | 中建隧道建设有限公司 | Calf support supporting structure and construction method |
| CN111455874A (en) * | 2020-04-26 | 2020-07-28 | 中国建筑第七工程局有限公司 | Construction method for overlong side span straight line segment of high pier of corrugated steel web PC bridge |
| CN111455859A (en) * | 2020-04-29 | 2020-07-28 | 中铁十五局集团有限公司 | Construction method for bracket of No. 0 and No. 1 steel bridge with high piers and continuous steel structure |
| CN212835007U (en) * | 2020-07-06 | 2021-03-30 | 兰州交通大学 | Low 0# piece bracket pre-compaction device of mound cantilever construction |
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2021
- 2021-04-30 CN CN202110483612.0A patent/CN113338164A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN204000617U (en) * | 2014-06-16 | 2014-12-10 | 浙江兴土桥梁临时钢结构工程有限公司 | Bolt bracket |
| CN207452737U (en) * | 2017-11-20 | 2018-06-05 | 中铁二十局集团第一工程有限公司 | Large span rigid frame-continuous girder bridge pier pier top bracket |
| CN108660913A (en) * | 2018-05-23 | 2018-10-16 | 中建隧道建设有限公司 | Calf support supporting structure and construction method |
| CN111455874A (en) * | 2020-04-26 | 2020-07-28 | 中国建筑第七工程局有限公司 | Construction method for overlong side span straight line segment of high pier of corrugated steel web PC bridge |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114808667A (en) * | 2022-05-30 | 2022-07-29 | 中建七局交通建设有限公司 | Supporting structure suitable for No. 0 block of rigid frame bridge and construction method of supporting structure |
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