CN112012105A - Tooth block pull rod combined cable tower anchoring structure of cable-stayed bridge - Google Patents
Tooth block pull rod combined cable tower anchoring structure of cable-stayed bridge Download PDFInfo
- Publication number
- CN112012105A CN112012105A CN202010836210.XA CN202010836210A CN112012105A CN 112012105 A CN112012105 A CN 112012105A CN 202010836210 A CN202010836210 A CN 202010836210A CN 112012105 A CN112012105 A CN 112012105A
- Authority
- CN
- China
- Prior art keywords
- cable
- tower
- pull rod
- tooth
- tooth block
- 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.)
- Pending
Links
Images
Classifications
-
- 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
- E01D19/14—Towers; Anchors ; Connection of cables to bridge parts; Saddle supports
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D11/00—Suspension or cable-stayed bridges
- E01D11/04—Cable-stayed bridges
-
- 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
- E01D2101/28—Concrete reinforced prestressed
-
- 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
- E01D2101/30—Metal
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a tooth block pull rod combined cable tower anchoring structure of a cable-stayed bridge, which comprises a cable tower, wherein stay cable anchoring tooth blocks are arranged on the inner side of a tower wall of the cable tower along the bridge direction, stay cable pre-embedded pipes are arranged in the tower walls of the front and the rear of the cable tower, an anchor backing plate for anchoring a stay cable is arranged at the joint of the upper end of each embedded pipe and the upper tooth surface of each anchoring tooth block, a profile steel pull rod arranged along the bridge direction is arranged in the cable tower, and the profile steel pull rods are connected with the lower tooth surfaces of the two tooth blocks and are distributed on two sides of the stay cable embedded pipes. And slow-bonding prestressed steel bundles are uniformly distributed in the four tower walls of the cable tower. In the invention, the tooth block is combined with the profile steel pull rod, and the force is transmitted together with the tower wall and the tooth block through the shear key. The invention abandons the high-altitude grouting operation with difficult quality control, avoids the cutting of the anchor recess to the tower column longitudinal bar, has convenient construction and easy quality control, improves the stress performance of cable tower anchoring, improves the construction quality of cable tower anchoring structure, improves the economical efficiency of structure and has popularization significance.
Description
Technical Field
The invention belongs to the technical field of cable-stayed bridge cable tower anchoring structures, and particularly relates to a tooth block and pull rod combined cable tower anchoring structure of a cable-stayed bridge.
Background
The cable-stayed bridge cable tower anchoring structure usually adopts a concrete tooth block or a steel anchor beam, wherein the concrete tooth block completely bears the cable-stayed cable force by a tower wall, more prestressed steel beams are required to be configured in the tower wall to resist the horizontal component force of the cable-stayed cable force, the high-altitude tensioning and grouting operation amount is large, and the arrangement of an anchor hole can cut off a large amount of longitudinal stressed steel bars of a main tower, so that the quality safety potential exists. The steel anchor beam bears most horizontal component force of the stayed cable force by the steel anchor beam and bears unbalanced cable force by the tower wall, the prestressed steel bundles in the tower wall are relatively few, but the steel anchor beam has large steel consumption, complex structure, large manufacturing, hoisting and positioning difficulty and large maintenance workload in the operation period, and brackets are required to be arranged in the tower wall, so that the integral economy is poor.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provide a tooth block pull rod combined cable tower anchoring structure which has simple structure, convenient construction, easy quality control, can be used as a maintenance platform support and has excellent economical efficiency.
The technical scheme of the invention is as follows: the utility model provides a tooth piece pull rod combination type cable tower anchor structure of cable-stay bridge, includes the cable tower, its characterized in that: the anchor block is characterized in that stay cable anchoring tooth blocks are arranged on the inner side of the tower wall of the cable tower along the bridge direction, stay cable embedded pipes are arranged in the tower walls of the front and the rear of the cable tower, an anchor backing plate used for anchoring the stay cables is arranged at the joint of the upper ends of the embedded pipes and the upper tooth surface of the anchoring tooth blocks, a profile steel pull rod placed along the bridge direction is arranged in the cable tower, and two ends of the profile steel pull rod are anchored in the tower walls of the front and the rear and the tooth blocks.
Furthermore, the embedded pipes are horizontally arranged on two sides of the tower wall correspondingly, and an anchor backing plate is arranged between the embedded pipes and the upper tooth surface.
Furthermore, the profile steel pull rods are pairwise combined to form a pull rod group, and two profile steel pull rods in the pull rod group are arranged on two sides of the embedded pipe.
Furthermore, a tooth block ridge line is formed between the upper tooth surface and the lower tooth surface, and the top end of the profile steel pull rod is located below the tooth block ridge line.
Furthermore, two ends of the profile steel pull rod are anchored with the tower wall, and an ear plate in the profile steel pull rod is anchored with the lower tooth surface.
Furthermore, the section steel pull rod comprises section steel, the section steel is composed of an upper flange plate, a lower flange plate and a web plate, cylindrical head shear nails are arranged at the upper end of the upper flange plate and the lower end of the lower flange plate, and the cylindrical head shear nails are used for anchoring the section steel and the tower wall.
Furthermore, the shaped steel outer wall department is provided with the otic placode, the otic placode is laminated with the flank of tooth mutually down, otic placode lateral wall department is provided with the fixed cylinder head shear force nail of usefulness with lower pinion rack.
Furthermore, the ear plate is fixed with the upper flange plate, the lower flange plate and the web plate.
Furthermore, a plurality of slow-bonding prestressed steel bundles which are independently distributed are arranged in the cable tower, PBL (Poly-beta-phenylene benzobisoxazole) shear key holes are formed in a web plate of the section steel, and the slow-bonding prestressed steel bundles penetrate through the PBL shear key holes.
Furthermore, longitudinal stressed steel bars are arranged in the cable tower, and the anchor recess at the tensioning end of the slow-bonding prestressed steel bundle is arranged between the longitudinal stressed steel bars of the tower column.
The tooth block is combined with the profile steel pull rod, the slow adhesion prestress steel beam is adopted in the tower wall, and the force is transmitted by combining the shear key, the tower wall and the tooth block. The grouting-free slow-bonding steel bundles are arranged singly, so that cutting of longitudinal ribs of the tower column is avoided, the specifications of the profile steel pull rods are adjusted according to stress requirements to determine the borne cable force proportion, the reduction of the amount of the steel bundles in the tower wall and the amount of the steel consumption are facilitated, the structure is simplified, and meanwhile, the profile steel pull rods are used as main supports of an overhaul platform in the tower.
The invention abandons the high-altitude grouting operation with difficult quality control, avoids the cutting of the anchor recess to the tower column longitudinal bar, has convenient construction and easy quality control, improves the stress performance of cable tower anchoring, improves the construction quality of cable tower anchoring structure, improves the economical efficiency of structure and has popularization significance.
Drawings
FIG. 1 is a schematic plan view of the present invention;
FIG. 2 is a schematic elevational view of the present invention;
FIG. 3 is a schematic structural view of a section steel tension rod according to the present invention;
FIG. 4 is a perspective view of a steel tie rod according to the present invention;
wherein:
1 tower wall 2 slow bonding prestressed steel beam
3 stay cable anchoring tooth block 4 anchor backing plate
5 pre-buried pipe 6 shaped steel pull rod
7 longitudinal stress steel bar
6-1 section steel 6-2 ear plate
6-3 cylindrical head shear pins 6-4 PBL shear key holes.
Detailed Description
The present invention is described in detail below with reference to the accompanying drawings and examples:
as shown in figures 1-4, a tooth block pull rod combined cable tower anchoring structure of a cable-stayed bridge comprises a cable tower and is characterized in that: the anchor block 3 of the stay cable is arranged on the inner side of the tower wall 1 along the bridge direction of the cable tower, the pre-buried pipe 5 of the stay cable is arranged in the tower wall 1 at the front and the rear of the cable tower, the anchor backing plate 4 for anchoring the stay cable is arranged at the joint of the upper end of the pre-buried pipe 5 and the upper tooth surface of the anchor block 3, the profile steel pull rod 6 arranged along the bridge direction is arranged in the cable tower, and two ends of the profile steel pull rod 6 are anchored in the front and the rear tower walls and the tooth blocks.
The embedded pipes 5 are horizontally arranged on two sides of the tower wall 1 correspondingly, and anchor backing plates 4 are arranged between the embedded pipes 5 and the upper tooth surface.
The profile steel pull rods 6 are pairwise arranged into a group to form a pull rod group, and the two profile steel pull rods 6 in the pull rod group are arranged on two sides of the embedded pipe 5.
And a tooth block edge angle line is formed between the upper tooth surface and the lower tooth surface, and the top end of the profile steel pull rod 6 is positioned below the tooth block edge angle line.
Two ends of the section steel pull rod 6 are anchored with the tower wall 1, and the lug plates 6-2 in the section steel pull rod 6 are anchored with the lower tooth surface.
The section steel pull rod 6 comprises section steel 6-1, the section steel 6-1 is composed of an upper flange plate, a lower flange plate and a web plate, cylindrical head shear nails 6-3 are arranged at the upper end of the upper flange plate and the lower end of the lower flange plate, and the cylindrical head shear nails 6-3 are used for anchoring the section steel 6-1 and the tower wall 1.
The outer wall of the section steel 6-1 is provided with an ear plate 6-2, the ear plate 6-2 is attached to the lower tooth surface, and a cylindrical head shear pin 6-3 for fixing the lower toothed plate is arranged on the side wall of the ear plate 6-2.
The ear plate 6-2 is fixed with the upper flange plate, the lower flange plate and the web plate.
The cable tower is internally provided with a plurality of slow-bonding prestressed steel bundles 2 which are independently distributed, a PBL (Poly-p-phenylene benzobisoxazole) shear key hole 6-4 is formed in a web plate of the section steel 6-1, and the slow-bonding prestressed steel bundles 2 penetrate through the PBL shear key hole 6-4.
Longitudinal stressed steel bars 7 are arranged in the cable tower, and anchor holes at the tensioning ends of the slow-adhesion prestressed steel bundles 2 are arranged among the longitudinal stressed steel bars 7 of the tower column.
The anchor recess at the tensioning end of the slow bonding prestressed steel bundle 2 is arranged between the longitudinal stressed steel bars 7 of the tower column, so that the longitudinal stressed steel bars 7 of the tower column can not be cut off, and grouting operation is not needed after tensioning is finished.
Preferably, the vertical distance between the upper end surface of the section steel pull rod 6 and the edge line of the toothed block is 0.2 m.
The cylindrical head shear nails 6-3 are welded with the upper flange plate, the lower flange plate and the ear plates 6-2.
Preferably, the upper flange plate, the lower flange plate and the web are of an integral structure or are fixed by welding, and the upper flange plate, the lower flange plate and the web can be but not limited to an I-shaped structure and a groove-shaped structure.
Correspondingly, the upper flange plate, the lower flange plate and the web plate in the profile steel pull rod 6 are subjected to penetration butt welding, the cylindrical head shear nails are welded with the upper flange plate, the lower flange plate and the lug plates 6-2 through arc stud welding, the PBL shear key holes 6-4 are firstly processed in the profile steel pull rod 6, then the lug plates 6-2 and the cylindrical head shear nails 6-3 are welded, and finally the profile steel pull rod is integrally hoisted to the designated position of the tower column.
The structural steel 6-1 is subjected to space positioning before concrete tower wall pouring, and after ordinary steel bars are bound, the slow-bonding prestressed steel bundles 2 are arranged.
Yet another embodiment
The utility model provides a tooth piece pull rod combination type cable tower anchor structure of cable-stay bridge, includes the cable tower, its characterized in that: the anchor block 3 of the stay cable is arranged on the inner side of the tower wall 1 along the bridge direction of the cable tower, the pre-buried pipe 5 of the stay cable is arranged in the tower wall 1 at the front and the rear of the cable tower, the anchor backing plate 4 for anchoring the stay cable is arranged at the joint of the upper end of the pre-buried pipe 5 and the upper tooth surface of the anchor block 3, the profile steel pull rod 6 arranged along the bridge direction is arranged in the cable tower, and two ends of the profile steel pull rod 6 are anchored in the front and the rear tower walls and the tooth blocks.
The embedded pipes 5 are horizontally arranged on two sides of the tower wall 1 correspondingly, and anchor backing plates 4 are arranged between the embedded pipes 5 and the upper tooth surface.
The profile steel pull rods 6 are pairwise arranged into a group to form a pull rod group, and the two profile steel pull rods 6 in the pull rod group are arranged on two sides of the embedded pipe 5.
And a tooth block edge angle line is formed between the upper tooth surface and the lower tooth surface, and the top end of the profile steel pull rod 6 is positioned below the tooth block edge angle line.
Two ends of the section steel pull rod 6 are anchored with the tower wall 1, and the lug plates 6-2 in the section steel pull rod 6 are anchored with the lower tooth surface.
The section steel pull rod 6 comprises section steel 6-1, the section steel 6-1 is composed of an upper flange plate, a lower flange plate and a web plate, cylindrical head shear nails 6-3 are arranged at the upper end of the upper flange plate and the lower end of the lower flange plate, and the cylindrical head shear nails 6-3 are used for anchoring the section steel 6-1 and the tower wall 1.
The outer wall of the section steel 6-1 is provided with an ear plate 6-2, the ear plate 6-2 is attached to the lower tooth surface, and a cylindrical head shear pin 6-3 for fixing the lower toothed plate is arranged on the side wall of the ear plate 6-2.
The ear plate 6-2 is fixed with the upper flange plate, the lower flange plate and the web plate.
The cable tower is internally provided with a plurality of slow-bonding prestressed steel bundles 2 which are independently distributed, a PBL (Poly-p-phenylene benzobisoxazole) shear key hole 6-4 is formed in a web plate of the section steel 6-1, and the slow-bonding prestressed steel bundles 2 penetrate through the PBL shear key hole 6-4.
Longitudinal stressed steel bars 7 are arranged in the cable tower, and anchor holes at the tensioning ends of the slow-adhesion prestressed steel bundles 2 are arranged among the longitudinal stressed steel bars 7 of the tower column.
The anchor recess at the tensioning end of the slow bonding prestressed steel bundle 2 is arranged between the longitudinal stressed steel bars 7 of the tower column, so that the longitudinal stressed steel bars 7 of the tower column can not be cut off, and grouting operation is not needed after tensioning is finished.
Preferably, the vertical distance between the upper end surface of the section steel pull rod 6 and the edge line of the toothed block is 0.2 m.
The cylindrical head shear nails 6-3 are welded with the upper flange plate, the lower flange plate and the ear plates 6-2.
Preferably, the upper flange plate, the lower flange plate and the web are of an integral structure or are fixed by welding, and the upper flange plate, the lower flange plate and the web can be but not limited to an I-shaped structure and a groove-shaped structure.
Correspondingly, the upper flange plate, the lower flange plate and the web plate in the profile steel pull rod 6 are subjected to penetration butt welding, the cylindrical head shear nails are welded with the upper flange plate, the lower flange plate and the lug plates 6-2 through arc stud welding, the PBL shear key holes 6-4 are firstly processed in the profile steel pull rod 6, then the lug plates 6-2 and the cylindrical head shear nails 6-3 are welded, and finally the profile steel pull rod is integrally hoisted to the designated position of the tower column.
The structural steel 6-1 is subjected to space positioning before concrete tower wall pouring, and after ordinary steel bars are bound, the slow-bonding prestressed steel bundles 2 are arranged.
The part of the upper flange plate exposed out of the cable tower in the section steel 6-1 serves as a building foundation of a cable tower maintenance platform, so that the optimization design of later-stage maintenance is realized on the basis of combination and fixation.
The installation process of the invention is as follows:
firstly, the section steel pull rod 6 is processed and manufactured according to design requirements, firstly, the section steel 6-1 is processed, then the PBL shear key hole 6-4 is processed, and then the lug plate 6-2 and the cylindrical head shear pin 6-3 are welded.
And step two, the section steel pull rod 6 is conveyed to a construction site after being welded in a factory and is hoisted to the designated position of the tower column section through a tower crane.
And step three, then, hoisting of the stay cable embedded pipe, binding of common steel bars, arrangement of the slow-adhesion prestressed steel bundles 2 and erection of the template are completed, and concrete pouring and maintenance are carried out.
And step four, completing the tensioning of the tower wall slow-bonding steel bundle 2 and the construction of an overhaul platform, and circulating the construction process.
After the installation is finished, the tower wall 1, the slow bonding prestressed steel strands 2, the stay cable anchoring tooth blocks 3 and the profile steel pull rod 6 are combined to jointly bear stay cable force, wherein the tower wall 1, the slow bonding steel strands 2 and the stay cable anchoring tooth blocks 3 bear relatively more horizontal component force and all vertical component force of the stay cable force, and the profile steel pull rod 6 bears relatively less horizontal component force of the stay cable force.
The tooth block is combined with the profile steel pull rod, the slow adhesion prestress steel beam is adopted in the tower wall, and the force is transmitted by combining the shear key, the tower wall and the tooth block. The grouting-free slow-bonding steel bundles are arranged singly, so that cutting of longitudinal ribs of the tower column is avoided, the specifications of the profile steel pull rods are adjusted according to stress requirements to determine the borne cable force proportion, the reduction of the amount of the steel bundles in the tower wall and the amount of the steel consumption are facilitated, the structure is simplified, and meanwhile, the profile steel pull rods are used as main supports of an overhaul platform in the tower.
The invention abandons the high-altitude grouting operation with difficult quality control, avoids the cutting of the anchor recess to the tower column longitudinal bar, has convenient construction and easy quality control, improves the stress performance of cable tower anchoring, improves the construction quality of cable tower anchoring structure, improves the economical efficiency of structure and has popularization significance.
Claims (10)
1. The utility model provides a tooth piece pull rod combination type cable tower anchor structure of cable-stay bridge, includes the cable tower, its characterized in that: the cable-stayed tower is characterized in that stay cable anchoring tooth blocks (3) are arranged on the inner side of a tower wall (1) in the direction of the bridge of the cable-stayed tower, cable-stayed cable pre-embedded pipes (5) are arranged in the tower wall (1) in the front and at the back of the cable-stayed tower, anchor backing plates (4) used for anchoring stay cables are arranged at the joint of the upper ends of the pre-embedded pipes (5) and the upper tooth surfaces of the anchoring tooth blocks (3), profile steel pull rods (6) placed in the direction of the bridge are arranged in the cable-stayed tower, and the two ends of the profile steel pull rods.
2. The cable-stayed bridge tooth block and pull rod combined type cable tower anchoring structure according to claim 1, wherein: the embedded pipe (5) is horizontally arranged on two sides of the tower wall (1) correspondingly, and an anchor backing plate (4) is arranged between the embedded pipe (5) and the upper tooth surface.
3. The cable-stayed bridge tooth block and pull rod combined type cable tower anchoring structure according to claim 2, wherein: the profile steel pull rods (6) are pairwise a group to form a pull rod group, and the two profile steel pull rods (6) in the pull rod group are arranged on two sides of the embedded pipe (5).
4. The cable-stayed bridge tooth block and pull rod combined type cable tower anchoring structure according to claim 3, wherein: a tooth block ridge line is formed between the upper tooth surface and the lower tooth surface, and the top end of the profile steel pull rod (6) is located below the tooth block ridge line.
5. The cable-stayed bridge tooth block and pull rod combined type cable tower anchoring structure according to claim 4, wherein: two ends of the profile steel pull rod (6) are anchored with the tower wall (1), and the lug plates (6-2) in the profile steel pull rod (6) are anchored with the lower tooth surface.
6. The cable-stayed bridge tooth block and pull rod combined type cable tower anchoring structure according to claim 5, wherein: the section steel pull rod (6) comprises section steel (6-1), the section steel (6-1) is composed of an upper flange plate, a lower flange plate and a web plate, cylindrical head shear nails (6-3) are arranged at the upper end of the upper flange plate and the lower end of the lower flange plate, and the cylindrical head shear nails (6-3) are used for anchoring the section steel (6-1) and the tower wall (1).
7. The cable-stayed bridge tooth block and pull rod combined type cable tower anchoring structure according to claim 6, wherein: the outer wall of the profile steel (6-1) is provided with an ear plate (6-2), the ear plate (6-2) is attached to the lower tooth surface, and a cylindrical head shear pin (6-3) for fixing the lower toothed plate is arranged on the side wall of the ear plate (6-2).
8. The cable-stayed bridge tooth block and pull rod combined type cable tower anchoring structure according to claim 7, wherein: the ear plates (6-2) are fixed with the upper flange plate, the lower flange plate and the web plate.
9. The cable-stayed bridge tooth block and pull rod combined type cable tower anchoring structure according to claim 8, wherein: the cable tower is internally provided with a plurality of slow-bonding prestressed steel bundles (2) which are independently distributed, a PBL (Poly-p-phenylene benzobisoxazole) shear key hole (6-4) is formed in a web plate of the section steel (6-1), and the slow-bonding prestressed steel bundles (2) penetrate through the PBL shear key hole (6-4).
10. The cable-stayed bridge tooth block and pull rod combined type cable tower anchoring structure according to claim 9, wherein: longitudinal stressed steel bars (7) are arranged in the cable tower, and anchor holes at the tensioning ends of the slow-adhesion prestressed steel bundles (2) are arranged among the longitudinal stressed steel bars (7) of the tower column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010836210.XA CN112012105A (en) | 2020-08-19 | 2020-08-19 | Tooth block pull rod combined cable tower anchoring structure of cable-stayed bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010836210.XA CN112012105A (en) | 2020-08-19 | 2020-08-19 | Tooth block pull rod combined cable tower anchoring structure of cable-stayed bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112012105A true CN112012105A (en) | 2020-12-01 |
Family
ID=73505102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010836210.XA Pending CN112012105A (en) | 2020-08-19 | 2020-08-19 | Tooth block pull rod combined cable tower anchoring structure of cable-stayed bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112012105A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113356053A (en) * | 2021-06-16 | 2021-09-07 | 湖北省交通规划设计院股份有限公司 | Stay cable steel tooth block anchoring structure and construction method |
| CN114517427A (en) * | 2022-02-17 | 2022-05-20 | 上海城建市政工程（集团）有限公司 | I-shaped steel bearing-inserting type tramcar prefabricated track beam and pipe pile connecting structure and construction method |
-
2020
- 2020-08-19 CN CN202010836210.XA patent/CN112012105A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113356053A (en) * | 2021-06-16 | 2021-09-07 | 湖北省交通规划设计院股份有限公司 | Stay cable steel tooth block anchoring structure and construction method |
| CN114517427A (en) * | 2022-02-17 | 2022-05-20 | 上海城建市政工程（集团）有限公司 | I-shaped steel bearing-inserting type tramcar prefabricated track beam and pipe pile connecting structure and construction method |
| CN114517427B (en) * | 2022-02-17 | 2024-04-26 | 上海城建市政工程（集团）有限公司 | I-shaped steel socket type tram precast track beam and tubular pile connecting structure and construction method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108978434B (en) | Bracket-free industrialized construction method of steel-concrete combined continuous box girder bridge | |
| CN110792165B (en) | Prefabricated assembly type concrete beam column joint connecting device and method | |
| CN203514196U (en) | Corrugated steel web combination-beam cable-stayed bridge cable beam anchoring structure | |
| CN103061261B (en) | Anchor pulling plate component for concrete girder of cable-stayed bridge | |
| CN104988844A (en) | Secondary tensioning prestressed assembly-type corrugated steel web composite beam and construction method thereof | |
| CN212426753U (en) | Tooth block pull rod combined cable tower anchoring structure of cable-stayed bridge | |
| CN112012105A (en) | Tooth block pull rod combined cable tower anchoring structure of cable-stayed bridge | |
| CN108193607A (en) | Fabricated prestressed truss for reinforcement and construction method thereof | |
| CN112458877A (en) | Assembled steel-concrete combined rigid frame bridge and construction method thereof | |
| CN114855594B (en) | Shearing-resistant connecting piece of steel-concrete composite girder bridge and construction method thereof | |
| CN113215948B (en) | Assembled combined box girder and construction method thereof | |
| CN113463502B (en) | Prefabricated assembled corrugated steel web composite bridge and cantilever construction method thereof | |
| CN113565004A (en) | Jack type corrugated steel web prestress composite beam | |
| CN111851737A (en) | Assembled concrete frame beam column trunk type connecting joint | |
| CN218643645U (en) | Full-assembly type reinforced concrete floor connected by steel-concrete combined structure | |
| CN104018427A (en) | All-welded box girder combination section constructing method | |
| CN218437691U (en) | Light-duty assembled superstructure system for reinforced concrete frame | |
| CN218345930U (en) | Bridge structure | |
| CN109594461B (en) | Assembled steel concrete composite beam and forming method thereof | |
| CN214459548U (en) | Assembled steel and concrete combined rigid frame bridge | |
| CN111254827B (en) | Stay cable and bridge tower anchoring structure and manufacturing method | |
| CN214833415U (en) | Take shear key's assembled concrete beam column thick liquid anchor connection structure | |
| CN214737317U (en) | Steel-concrete combined rigid frame bridge connected through slots | |
| CN204703350U (en) | A kind of assembling composite floor | |
| CN211472112U (en) | Prefabricated corrugated steel web combination T-shaped girder bridge of assembling |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |