CN114517561A - Flexible rib prefabricated assembly connecting structure and construction method thereof - Google Patents
Flexible rib prefabricated assembly connecting structure and construction method thereof Download PDFInfo
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- CN114517561A CN114517561A CN202210132699.1A CN202210132699A CN114517561A CN 114517561 A CN114517561 A CN 114517561A CN 202210132699 A CN202210132699 A CN 202210132699A CN 114517561 A CN114517561 A CN 114517561A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
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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
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
- E04C5/162—Connectors or means for connecting parts for reinforcements
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
- E04C5/162—Connectors or means for connecting parts for reinforcements
- E04C5/163—Connectors or means for connecting parts for reinforcements the reinforcements running in one single direction
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- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to the technical field of bridge engineering, in particular to a flexible rib prefabricated assembling connection structure and a construction method thereof. The flexible rib prefabricated assembly connecting structure is used for realizing the connection between a prefabricated bridge pier and a bearing platform, wherein a reserved longitudinal rib connecting section is arranged on the prefabricated bridge pier, and a reserved vertical steel bar connecting section is arranged on the bearing platform; the prefabricated connection structure of assembling of flexible muscle is including reserving vertical bar linkage segment, reservation vertical bar linkage segment, steel bar joint, flexible muscle, reserve vertical bar linkage segment and reserve vertical bar linkage segment vertical direction and align, the flexible muscle is connected through steel bar joint and is reserved vertical bar linkage segment and reserve vertical bar linkage segment. The stirrups are arranged on the peripheries of the flexible reinforcements to meet the shearing resistance requirement and improve the compressive strength of the core concrete; the invention can improve the construction tolerance of the connecting part, does not remarkably increase the manufacturing cost, has simple construction of the whole system, is easy to operate, can improve the construction efficiency and is convenient for the prefabrication, assembly and connection of concrete piers, columns, beams or shear walls.
Description
Technical Field
The invention relates to the technical field of bridge engineering, in particular to a flexible rib prefabricated assembling connection structure and a construction method thereof.
Background
For the prefabrication and assembly of the bridge substructure, the static and dynamic response of the structure is directly influenced by the performance of connection between prefabricated parts, and the safety, durability, construction convenience and seismic performance of a connection structure are key factors for limiting the popularization and application of the prefabrication and assembly technology in the bridge substructure. Researchers and engineering designers at home and abroad put forward various schemes for the connection structure of the pier and the cushion cap or the pier and the capping beam of the assembled substructure according to factors such as bridge type characteristics, construction conditions, engineering environment and the like, and the grouting sleeve connection, the grouting metal corrugated pipe connection, the mechanical connection and the like are widely applied. The result of a pseudo-static test shows that the bearing capacity and the ductility performance of the same cast-in-place can be achieved by matching with longitudinal bar non-bonding treatment and other modes. It should be noted that the construction tolerance of grouting sleeve connection, grouting metal corrugated pipe connection and mechanical connection is small, about 2cm, and the requirement on the positioning accuracy of the reserved longitudinal bar connecting section and the reserved vertical steel bar of the bearing platform is high.
Disclosure of Invention
In order to solve the problems, the invention aims to provide a flexible rib prefabricated assembly connecting structure and a construction method thereof. The flexible rib prefabricated assembly connecting structure is used for realizing the connection between a prefabricated bridge pier and a bearing platform, wherein a reserved longitudinal rib connecting section is arranged on the prefabricated bridge pier, and a reserved vertical steel bar connecting section is arranged on the bearing platform; the prefabricated connection structure of assembling of flexible muscle is including reserving vertical bar linkage segment, reservation vertical bar linkage segment, steel bar joint, flexible muscle, reserve vertical bar linkage segment and reserve vertical bar linkage segment vertical direction and align, the flexible muscle is connected through steel bar joint and is reserved vertical bar linkage segment and reserve vertical bar linkage segment. The stirrups are arranged on the peripheries of the flexible reinforcements to meet the shearing resistance requirement and improve the compressive strength of the core concrete; the invention can improve the construction tolerance of the connecting part, does not remarkably increase the manufacturing cost, has simple construction of the whole system, is easy to operate, can improve the construction efficiency and is convenient for the prefabrication, assembly and connection of concrete piers, columns, beams or shear walls.
The purpose of the invention can be realized by the following technical scheme:
the invention provides a flexible rib prefabricated assembly connecting structure, which is used for realizing the connection of a prefabricated pier and a bearing platform, wherein a reserved longitudinal rib connecting section is arranged on the prefabricated pier, a reserved vertical steel bar connecting section is arranged on the bearing platform and comprises a reserved longitudinal rib connecting section, a reserved vertical steel bar connecting section, a steel bar connector and a flexible rib, the reserved longitudinal rib connecting section is aligned with the reserved vertical steel bar connecting section in the vertical direction, and the flexible rib is connected with the reserved longitudinal rib connecting section and the reserved vertical steel bar connecting section through the steel bar connector.
In one embodiment of the present invention, the reinforcement bar joint is welded or bolted to the reserved longitudinal bar connection section or the reserved vertical bar connection section.
In one embodiment of the invention, when the steel bar joint is bolted with the reserved longitudinal bar connecting section, the inner diameter thread of the steel bar joint is the same as the outer diameter thread of the reserved longitudinal bar connecting section; the length of the threaded portion should be sufficient to ensure that no slipping occurs when the bar reaches yield stress.
When the steel bar joint is connected with the reserved vertical steel bar connecting section through the bolt, the inner diameter threads of the steel bar joint are the same as the outer diameter threads of the reserved vertical steel bar connecting section; the length of the threaded portion should be sufficient to ensure that no slipping occurs when the bar reaches yield stress.
In one embodiment of the present invention, the reinforcing bar coupler includes a first coupler and a second coupler; the first joint is connected with the reserved longitudinal bar connecting section or the reserved vertical steel bar connecting section, and the second joint is connected with the flexible bar.
In one embodiment of the invention, the flexible rib is selected from one or more of a high-strength steel cable, a carbon fiber cable, a glass fiber cable, a basalt fiber cable or an aramid fiber cable. Compared with steel materials, on the premise of meeting the flexibility, the tensile strength of the steel materials is higher, and the sectional area of the flexible rib is smaller than that of the steel bar.
In one embodiment of the invention, the single flexible rib is connected with the single reserved longitudinal rib connecting section and the reserved vertical steel bar connecting section, and the flexible rib is respectively connected with the second joint of the steel bar joint connected with the reserved longitudinal rib connecting section and the reserved vertical steel bar connecting section.
In one embodiment of the invention, a single flexible rib is connected with a plurality of reserved longitudinal rib connecting sections and reserved vertical steel bar connecting sections, the flexible rib crosses and penetrates through a second joint of the steel bar joints connected with the reserved longitudinal rib connecting sections and the reserved vertical steel bar connecting sections, and the flexible rib is connected with the head and the tail of the flexible rib through a flexible rib fastener.
In an embodiment of the present invention, when the flexible rib is connected to one reserved longitudinal rib connecting section or reserved vertical steel bar connecting section, the second joint is a cylindrical interface;
when the flexible ribs are connected with the reserved longitudinal rib connecting sections or the reserved vertical steel bar connecting sections, the second joint is a semi-annular interface.
In one embodiment of the invention, the flexible tendon fastener comprises a flexible tendon joint and a threaded sleeve; the threaded sleeves are arranged at two ends of the flexible rib joint.
In one embodiment of the invention, the inner diameter threads of the flexible web joint are the same as the outer diameter threads of the threaded sleeve.
In one embodiment of the invention, the flexible rib is peripherally provided with several stirrups.
In an embodiment of the present invention, the flexible reinforcement periphery should be configured with stirrups to meet the requirement of shear resistance, and simultaneously improve the compressive strength of the concrete in the core area, that is, the flexible reinforcement periphery is provided with a plurality of stirrups, and the stirrups are selected from reinforcing steel bars or flexible stirrups.
In one embodiment of the invention, the diameter of the flexible rib and the strength grade of concrete in the connecting area are determined according to a capacity protection design principle, and the condition that the damage occurs at the position of the pier body above the connecting area is ensured.
The second purpose of the invention is to provide a construction method of the flexible rib prefabricated splicing connection structure, which comprises the following steps:
(S1) prefabricating or casting a bearing platform pre-embedded with vertical steel bars in situ, hoisting the lower segment of the prefabricated pier or the prefabricated pier in place, and aligning the reserved longitudinal bar connecting section with the reserved vertical steel bar connecting section;
(S2) connecting the flexible reinforcement to the reinforcement joint, and connecting the reinforcement joint with the reserved longitudinal reinforcement connecting section and the reserved vertical reinforcement connecting section;
(S3) binding stirrups at the peripheries of the flexible ribs respectively, and supporting a formwork to pour post-cast concrete maintenance of the connection area.
In one embodiment of the present invention, in the step (S3), the concrete is selected from the group consisting of general concrete, Ultra High Performance Concrete (UHPC), and high ductility concrete (ECC) having a higher compressive strength grade than that of the precast pier.
Compared with the prior art, the invention has the following beneficial effects:
(1) the tolerance of the flexible rib can be adjusted by the length of the flexible rib and the length of the steel bar joint during construction, so that the construction tolerance of the connection structure is greatly improved. Because the flexible ribs have no bearing capacity, when the bridge pier is pressed and bent, the compressive stress is borne by the concrete in the connecting area. Although the yield strength of the steel bars can reach more than 15 times of the compressive strength of the concrete prism, the specification requires that the reinforcement ratio of the longitudinal steel bars of the pier of the highway bridge is within 0.6-4%, and the compressive bearing capacity of the section in the reinforced concrete column is still mainly borne by the concrete. By improving the strength grade of the concrete in the connecting area, the aim that the compressive and bending bearing capacity of the connecting area is greater than that of a pier body can be achieved; simultaneously, the strength of the concrete is increased by a strength grade, and the manufacturing cost is increased by about 50-100 yuan/m3(slightly changed according to different market conditions) without obviously increasing the manufacturing cost.
(2) The reserved longitudinal bar connecting section and the reserved vertical steel bar connecting section are connected through the flexible bars, so that the construction tolerance can be improved, and the construction method is simple, easy to operate, high in economy and convenient to popularize and apply.
Drawings
Fig. 1 is a schematic view of a flexible rib prefabricated assembly connection structure in embodiment 1 of the present invention;
FIG. 2 is a schematic view of a prefabricated bridge pier provided with a reserved longitudinal rib connecting section according to the invention;
FIG. 3 is a schematic view of a prefabricated pile cap provided with a reserved vertical steel bar connecting section according to the present invention;
fig. 4 is a schematic view of a reinforcing bar coupler according to embodiment 1 of the present invention;
FIG. 5 is a schematic view of a flexible rib according to example 1 of the present invention;
fig. 6 is a schematic view of a flexible rib prefabrication, assembly and connection structure in embodiment 2 of the present invention;
fig. 7 is a schematic view of a reinforcing bar coupler according to embodiment 2 of the present invention;
FIG. 8 is a schematic view of a flexible tendon fastener according to example 2 of the present invention;
reference numbers in the figures: 1. prefabricating a bridge pier; 2. reserving a longitudinal rib connecting section; 3. a steel bar joint; 4. a flexible rib; 5. reserving a vertical steel bar connecting section; 6. a bearing platform; 7. a flexible rib fastener; 8. a flexible tendon joint; 9. a threaded sleeve; 10. and (5) hooping.
Detailed Description
The invention provides a flexible rib prefabricated assembly connecting structure which is used for realizing the connection of a prefabricated pier and a bearing platform, wherein a reserved longitudinal rib connecting section is arranged on the prefabricated pier, a reserved vertical steel bar connecting section is arranged on the bearing platform and comprises a reserved longitudinal rib connecting section, a reserved vertical steel bar connecting section, a steel bar connector and a flexible rib, the reserved longitudinal rib connecting section is aligned with the reserved vertical steel bar connecting section in the vertical direction, and the flexible rib is connected with the reserved longitudinal rib connecting section and the reserved vertical steel bar connecting section through the steel bar connector.
In one embodiment of the present invention, the reinforcement bar joint is welded or bolted to the reserved longitudinal bar connection section or the reserved vertical bar connection section.
In one embodiment of the invention, when the steel bar joint is bolted with the reserved longitudinal bar connecting section, the inner diameter thread of the steel bar joint is the same as the outer diameter thread of the reserved longitudinal bar connecting section; the length of the threaded portion should be sufficient to ensure that no slipping occurs when the bar reaches yield stress.
When the steel bar joint is connected with the reserved vertical steel bar connecting section through the bolt, the inner diameter threads of the steel bar joint are the same as the outer diameter threads of the reserved vertical steel bar connecting section; the length of the threaded portion should be sufficient to ensure that no slipping occurs when the bar reaches yield stress.
In one embodiment of the present invention, the reinforcing bar coupler includes a first coupler and a second coupler; the first joint is connected with the reserved longitudinal bar connecting section or the reserved vertical steel bar connecting section, and the second joint is connected with the flexible bar.
In one embodiment of the invention, the flexible rib is selected from one or more of a high-strength steel cable, a carbon fiber cable, a glass fiber cable, a basalt fiber cable or an aramid fiber cable. Compared with steel materials, on the premise of meeting the flexibility, the tensile strength of the steel materials is higher, and the sectional area of the flexible rib is smaller than that of the steel bar.
In one embodiment of the invention, the single flexible rib is connected with the single reserved longitudinal rib connecting section and the reserved vertical steel bar connecting section, and the flexible rib is respectively connected with the second joint of the steel bar joint connected with the reserved longitudinal rib connecting section and the reserved vertical steel bar connecting section.
In one embodiment of the invention, a single flexible rib is connected with a plurality of reserved longitudinal rib connecting sections and reserved vertical steel bar connecting sections, the flexible rib crosses and penetrates through a second joint of the steel bar joints connected with the reserved longitudinal rib connecting sections and the reserved vertical steel bar connecting sections, and the flexible rib is connected with the head and the tail of the flexible rib through a flexible rib fastener.
In an embodiment of the present invention, when the flexible rib is connected to one reserved longitudinal rib connecting section or reserved vertical steel bar connecting section, the second joint is a cylindrical interface;
when the flexible ribs are connected with the reserved longitudinal rib connecting sections or the reserved vertical steel bar connecting sections, the second joint is a semi-annular interface.
In one embodiment of the invention, the flexible tendon fastener comprises a flexible tendon joint and a threaded sleeve; the threaded sleeves are arranged at two ends of the flexible rib joint.
In one embodiment of the invention, the inner diameter threads of the flexible web joint are the same as the outer diameter threads of the threaded sleeve.
In one embodiment of the invention, the flexible rib is peripherally provided with several stirrups.
In an embodiment of the present invention, the flexible reinforcement periphery should be configured with stirrups to meet the requirement of shear resistance, and simultaneously improve the compressive strength of the concrete in the core area, that is, the flexible reinforcement periphery is provided with a plurality of stirrups, and the stirrups are selected from reinforcing steel bars or flexible stirrups.
In one embodiment of the invention, the diameter of the flexible rib and the strength grade of concrete in the connecting area are determined according to the capacity protection design principle, so that the damage to the pier body above the connecting area is ensured.
The invention provides a construction method of the flexible rib prefabricated splicing connection structure, which comprises the following steps:
(S1) prefabricating or casting a bearing platform pre-embedded with vertical steel bars in situ, hoisting the lower segment of the prefabricated pier or the prefabricated pier in place, and aligning the reserved longitudinal bar connecting section with the reserved vertical steel bar connecting section;
(S2) connecting the flexible reinforcement to the reinforcement joint, and connecting the reinforcement joint with the reserved longitudinal reinforcement connecting section and the reserved vertical reinforcement connecting section;
(S3) binding stirrups at the peripheries of the flexible ribs respectively, and supporting a formwork to pour post-cast concrete maintenance of the connection area.
In one embodiment of the present invention, in the step (S3), the concrete is selected from the group consisting of general concrete, Ultra High Performance Concrete (UHPC), and high ductility concrete (ECC) having a higher compressive strength grade than that of the precast pier.
The invention is described in detail below with reference to the figures and the specific embodiments.
Example 1
The embodiment provides a flexible rib prefabricated assembling connection structure.
This embodiment has provided a joint construction is assembled in prefabrication of flexible muscle, as shown in fig. 1-5, indulge muscle linkage segment 2, reserve vertical reinforcement connection section 5, steel bar joint 3, flexible muscle 4 including reserving, the reservation is indulged muscle linkage segment 2 and is reserved 5 vertical directions of vertical reinforcement connection section and align mutually, flexible muscle 4 connects through steel bar joint 3 and reserves and indulges muscle linkage segment 2 and reserve vertical reinforcement connection section 5.
The steel bar joint 3 comprises a first joint and a second joint, wherein the first joint and the second joint are respectively cylindrical joints with different diameters, and the diameter of the first joint is larger than that of the second joint; the first joint is connected with the reserved longitudinal bar connecting section 2 or the reserved vertical steel bar connecting section 5, and the second joint is connected with the flexible bar 4; the inner diameter threads of the first joint of the steel bar joint 3 are the same as the outer diameter threads of the reserved longitudinal bar connecting section 2 and the reserved vertical steel bar connecting section 5; the flexible ribs 4 are selected from high-strength steel wire ropes, and each flexible rib 4 is respectively connected with a reserved longitudinal rib connecting section 2 and a reserved vertical steel bar connecting section 5; the periphery of the flexible rib 4 is provided with 3 flexible stirrups.
Example 2
The embodiment provides a construction method of a flexible rib prefabricated splicing connection structure.
In the embodiment of the invention, a construction method of a flexible rib prefabricated assembly connecting structure (embodiment 1) comprises the following steps:
(1) prefabricating or casting a bearing platform 6 pre-embedded with vertical steel bars in situ, hoisting the prefabricated pier 1 in place, and aligning the reserved longitudinal bar connecting section 2 on the prefabricated pier with the reserved vertical steel bar connecting section 5 on the bearing platform;
(2) connecting the flexible rib 4 to a second joint of the steel bar joint 3, connecting a first joint of the steel bar joint 3 with the reserved longitudinal rib connecting section 2 and the reserved vertical steel bar connecting section 5 in a threaded manner, and screwing the steel bar joint 3;
(3) 3 flexible stirrups are respectively bound on the periphery of the flexible reinforcement 4, post-cast concrete in a connecting area is poured by a formwork, and the concrete is maintained for 28 days.
In the embodiment of the invention, preparation before construction is as follows: and cleaning the construction site according to a design drawing, and organizing construction materials, machinery and personnel in place.
Example 3
The embodiment provides a flexible rib prefabricated assembling connection structure.
Compare with embodiment 1, most all are the same, except that every flexible muscle 4 links to each other with many reservation longitudinal bar linkage segments in this embodiment, specifically is: as shown in fig. 6-8, the reinforcement bar joint 3 includes a first joint and a second joint, the first joint is a cylindrical joint, the second joint is a semi-annular joint, and the first joint is connected with the reserved longitudinal bar connecting section 2 or the reserved vertical reinforcement bar connecting section 5; the flexible ribs 4 penetrate through the second joints to be connected with the reserved longitudinal rib connecting sections 2 and the reserved vertical steel bar connecting sections 5 in a cross grid shape, and the heads and the tails of the flexible ribs 4 are connected through flexible rib fasteners 7; the flexible rib fastener 7 comprises a flexible rib joint 8 and a threaded sleeve 9, and the threaded sleeve 9 is arranged at two ends of the flexible rib joint 8; the inner diameter thread of the flexible web joint 8 is the same as the outer diameter thread of the threaded sleeve 9.
Because every reservation is indulged and is had two flexible muscle 4 branches under muscle linkage segment 2, the cross-sectional area of flexible muscle 4 can be littleer, and the construction speed can be accelerated to the reduction of 4 numbers of flexible muscle simultaneously.
Example 4
The embodiment provides a construction method of a flexible rib prefabricated splicing connection structure.
In an embodiment of the present invention, a construction method of a flexible rib prefabricated assembled connection structure (embodiment 3) includes the following steps:
(1) prefabricating or casting a bearing platform 6 pre-embedded with vertical steel bars in situ, hoisting the prefabricated pier 1 in place, and aligning the reserved longitudinal bar connecting section 2 with the reserved vertical steel bar connecting section 5.
(2) After the reinforcing steel bar joint 3 is in threaded connection with the reserved longitudinal bar connecting section 2 and the reserved vertical reinforcing steel bar connecting section 5, the flexible bar 4 is connected to the reinforcing steel bar joint 3, and the flexible bar 4 is tightened through the flexible bar fastener 7.
(3) 3 flexible stirrups are respectively bound on the periphery of the flexible reinforcement 4, post-cast concrete in a connecting area is poured by a formwork, and the concrete is maintained for 28 days.
In the embodiment of the invention, preparation before construction is as follows: and cleaning the construction site according to a design drawing, and organizing construction materials, machinery and personnel in place.
The embodiments described above are described to facilitate an understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention based on the disclosure of the present invention.
Claims (10)
1. The utility model provides a prefabricated joint construction of assembling of flexible muscle for realize the connection of prefabricated pier (1) and cushion cap (6), be provided with on prefabricated pier (1) and reserve vertical reinforcement connection section (2), be provided with on cushion cap (6) and reserve vertical reinforcement connection section (5), its characterized in that, indulge muscle connection section (2), reserve vertical reinforcement connection section (5), steel bar joint (3), flexible muscle (4) including reserving, reserve vertical reinforcement connection section (2) and reserve vertical reinforcement connection section (5) vertical direction and align mutually, flexible muscle (4) are connected through steel bar joint (3) and are reserved vertical reinforcement connection section (2) and reserve vertical reinforcement connection section (5).
2. The flexible reinforcement prefabrication and assembly connecting structure as claimed in claim 1, wherein the reinforcement joint (3) is welded or bolted to the reserved longitudinal reinforcement connecting section (2) or the reserved vertical reinforcement connecting section (5).
3. The flexible reinforcement prefabricated assembly connecting structure is characterized in that when the reinforcement joint (3) is in bolted connection with the reserved longitudinal reinforcement connecting section (2), the inner diameter threads of the reinforcement joint (3) are the same as the outer diameter threads of the reserved longitudinal reinforcement connecting section (2);
when the steel bar joint (3) is in bolt connection with the reserved vertical steel bar connecting section (5), the inner diameter threads of the steel bar joint (3) are the same as the outer diameter threads of the reserved vertical steel bar connecting section (5).
4. The flexible reinforcement prefabricated assembly connecting structure as claimed in claim 1, wherein the reinforcement joints (3) comprise a first joint and a second joint; the first joint is connected with the reserved longitudinal bar connecting section (2) or the reserved vertical bar connecting section (5), and the second joint is connected with the flexible bar (4).
5. The flexible rib prefabricated assembling connection structure according to claim 4, wherein a single flexible rib (4) is connected with a single reserved longitudinal rib connection section (2) and a reserved vertical steel bar connection section (5), and the flexible rib (4) is respectively connected with a second joint of a steel bar joint (3) connected with the reserved longitudinal rib connection section (2) and the reserved vertical steel bar connection section (5).
6. The flexible rib prefabricated assembling connection structure according to claim 4, wherein a single flexible rib (4) is connected with a plurality of reserved longitudinal rib connection sections (2) and reserved vertical steel bar connection sections (5), the flexible rib (4) penetrates through second joints of the steel bar joints (3) connected with the reserved longitudinal rib connection sections (2) and the reserved vertical steel bar connection sections (5) in a crossed mode, and the flexible rib (4) is connected end to end through a flexible rib fastener (7).
7. A flexible tendon precast joint construction according to claim 6 characterized in that the flexible tendon fastener (7) comprises a flexible tendon joint (8) and a threaded sleeve (9); the threaded sleeves (9) are arranged at two ends of the flexible rib joint (8).
8. A flexible tendon precast joint construction according to claim 7 characterized in that the inner diameter thread of the flexible tendon joint (8) is the same as the outer diameter thread of the threaded sleeve (9).
9. The prefabricated assembly connecting structure of the flexible rib as claimed in claim 1, wherein a plurality of stirrups (10) are arranged on the periphery of the flexible rib (4).
10. A construction method of a flexible rib prefabricated joined construction according to any one of claims 1 to 9, comprising the steps of:
(S1) prefabricating or casting a bearing platform (6) pre-buried with vertical steel bars in a cast-in-place mode, hoisting the prefabricated pier (1) or the lower segment of the prefabricated pier (1) in place, and aligning the reserved longitudinal bar connecting section (2) and the reserved vertical steel bar connecting section (5);
(S2) connecting the flexible reinforcement (4) to the reinforcement joint (3), and connecting the reinforcement joint (3) with the reserved longitudinal reinforcement connecting section (2) and the reserved vertical reinforcement connecting section (5);
(S3) binding stirrups (10) on the periphery of the flexible ribs (4) respectively, and supporting a formwork to pour post-cast concrete maintenance of the connection area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210132699.1A CN114517561A (en) | 2022-02-14 | 2022-02-14 | Flexible rib prefabricated assembly connecting structure and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210132699.1A CN114517561A (en) | 2022-02-14 | 2022-02-14 | Flexible rib prefabricated assembly connecting structure and construction method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114737472A (en) * | 2022-05-24 | 2022-07-12 | 中铁二院工程集团有限责任公司 | Damping limiting inhaul cable device, bridge damping system and carbon fiber cable design method |
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2022
- 2022-02-14 CN CN202210132699.1A patent/CN114517561A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114737472A (en) * | 2022-05-24 | 2022-07-12 | 中铁二院工程集团有限责任公司 | Damping limiting inhaul cable device, bridge damping system and carbon fiber cable design method |
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