CN207227935U - A kind of bridge prefabrication substructure - Google Patents
A kind of bridge prefabrication substructure Download PDFInfo
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- CN207227935U CN207227935U CN201720846073.1U CN201720846073U CN207227935U CN 207227935 U CN207227935 U CN 207227935U CN 201720846073 U CN201720846073 U CN 201720846073U CN 207227935 U CN207227935 U CN 207227935U
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- pier stud
- bent cap
- prefabricated
- bridge
- substructure
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Abstract
The utility model discloses a kind of bridge prefabrication substructure, including integrated prefabricated bent cap, pier stud；Prefabricated bent cap, pier stud are the structures in factory's one assembling reinforcement, formed by integrally casting concrete；Bent cap is connected the bar connecting form that uses with pier stud, and pier stud stress main reinforcement stretches into bent cap, and built-in length need to meet anchorage length requirement；The Extended chemotherapy of cast in situs reserves groove, during construction, Precast Pier Columns is inserted into groove, pier stud and groove gap rapid hardening high-strength Concrete Filled.The utility model can solve the technical problems such as the reliability of the prefabricated substructure connection in high earthquake region, can meet Short/Medium Span Bridge rapid construction requirement, effectively shorten the construction period, reduce influence of the bridge construction to traffic.
Description
Technical field
The utility model belongs to bridge structure rapid construction, prefabrication technical field of construction.
Background technology
The concept of prefabricated installation is accepted already, but mainly to superstructure.Beams of concrete or girder steel are in factory
After completing, building site is transported to, only waits Bent beam to finish, it is possible to which roof beam structure is got on.At present, prefabricated installation concept is expanding
Open up substructure.Bent cap and column start to be prefabricated in the factory, then transport to building site installation.For example, the U.S. some without earthquake
Area has been carried out this technique if (such as moral gram Long Si states).But in some earthquake prone areas, just seldom in this way.
From structurally saying, two components of column and bent cap use prefabricated installation most convenient.Because they are all straight-bars, make, transport, hang
Dress is all very simple.But in earthquake areas, problem is exactly appeared on both linkage interfaces.From antidetonation angle, this interface
It is most critical position, it is desirable to which the position will have enough intensity and ductility.And in most cases, the prefabricated peace of bent cap column
Dress can cause anti-seismic performance to decline.
The domestic research of substructure precast segment assembling technique and application are relatively fewer, but just gradually obtain China engineer
Concern and attention.Precast segment assembly bridge pier is that bridge is vertically divided into some block parts, such as cushion cap, column, bent cap, work
Factory is prefabricated, transports to construction site, on-site consolidation.Engineering prefabricated components easily standardize, the advantages of more playing precasting process：
Pre-fabricated factory, easy to quality control；It is small to surrounding enviroment and traffic impact；The safety that danger zone operation can be effectively eliminated is hidden
Suffer from；Precast concrete shrinkage and creep is small etc..
In huge highway bridge colony, there are about 1/4 bridge is weathered out-of-date or afunction.That is,
There is thousands of bridge to need repairing, reinforce or replace.The transformation and upgrade of bridge, undoubtedly part of taking a long view is meddlesome, is
It is necessary；But consider from instantly, it can bring the deuce to pay to daily traffic.Break off a friendship, traffic disturbance can not only be caused by detouring, and
And user's delay time at stop and unnecessary fuel consumption can be also caused, economic loss is huge.Therefore, process is reconstructed in bridge strengthening
In, it should try one's best and shorten the construction period, minimally disturb traffic.
It undoubtedly can more be speeded up the work than cast-in-place using the construction of prefabricated installation method, reduce field operation time, this is
The conclusion having already been confirmed.Prefabricated mounting process can be completed with parallel operations, extensive work in factory, few occupancy scene
Room and time, it is not necessary to close traffic for a long time and detour.In addition, also reduce the danger that worker works in chaotic scene
Property.
Existing prefabricated substructure, is bent cap, pier stud, basis separately prefabricated, each position joint connection in site, but pier stud and base
Connection mode or complexity or anti-seismic performance between plinth cannot be guaranteed.
The content of the invention
The purpose of this utility model is to provide a kind of bridge prefabrication substructure, is connected with solving the prefabricated substructure in high earthquake region
The technical problems such as the reliability connect, can meet Short/Medium Span Bridge rapid construction requirement, effectively shorten the construction period, and reduce bridge construction
Influence to traffic.
In order to realize foregoing invention purpose, technical solution is as follows used by the utility model：
A kind of bridge prefabrication substructure, including integrated prefabricated bent cap, pier stud；Prefabricated bent cap, pier stud are in factory
Integral assembling reinforcement, the structure of formed by integrally casting concrete；Bent cap is connected with pier stud uses bar connecting form, pier stud stress main reinforcement
Bent cap is stretched into, and built-in length need to meet anchorage length requirement；The Extended chemotherapy of Precast Pier Columns insertion cast in situs is reserved recessed
In groove, pier stud is filled with rapid hardening high-strength concrete with groove gap.
The utility model has the advantages that the prefabricated substructure connectivity problem in high earthquake region can be solved, it can meet middle-small span
Beam rapid construction requirement, effectively shortens the construction period, and reduces influence of the bridge construction to traffic.
Brief description of the drawings
Fig. 1 is the cross-section of bridge schematic diagram of the utility model.
Fig. 2 is the monolithic substructure schematic diagram of the utility model.
Fig. 3 is the side view of Fig. 2.
Numbered in figure：1st, integrated prefabricated lower member, 2, cast-in-place Extended chemotherapy, 3, Precast Pier Columns, 4, prefabricated bent cap, 5,
Extended chemotherapy reserves groove, and 6, block.
Embodiment
The structure of the utility model is referring to shown in Fig. 1,2,3.The utility model is using horizontal piecemeal, monolithic bent cap, pier stud
Overall prefabrication.Extended chemotherapy cast in situs and reserved groove.Precast Pier Columns are inserted into Extended chemotherapy groove, pier by construction site
Column and groove gap cast-in-place concrete filling.Horizontal piecemeal avoids bent cap and pier stud node joint connection in site, and pier stud insertion expands
Basic groove makes pier stud main reinforcement not cut off in Extended chemotherapy and pier stud interface, solves prefabricated components node anti-seismic problem.Under
Portion's structure piecemeal quantity need to determine according to unit in charge of construction's Lifting Capacity, as shown in Figure 1.
Monolithic substructure is specifically arranged as shown in Figure 2,3.It is made of bent cap, pier stud two parts, it is whole in factory for prefabrication
Body pouring construction.Bent cap, pier stud connection use bar connecting form, and pier stud stress main reinforcement stretches into bent cap, and built-in length need to expire
Sufficient anchorage length requirement.Connecting node is conventional coupling arrangement in shop, and construction is simple, meets corresponding code requirement
.
Claims (1)
1. a kind of bridge prefabrication substructure, it is characterised in that including integrated prefabricated bent cap, pier stud；Prefabricated bent cap, pier stud
It is the structure in factory's one assembling reinforcement, formed by integrally casting concrete；Bent cap is connected with pier stud uses bar connecting form, pier stud
Stress main reinforcement stretches into bent cap, and built-in length need to meet anchorage length requirement；Precast Pier Columns are inserted into the Extended chemotherapy of cast in situs
In reserved groove, pier stud is filled with rapid hardening high-strength concrete with groove gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720846073.1U CN207227935U (en) | 2017-07-13 | 2017-07-13 | A kind of bridge prefabrication substructure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720846073.1U CN207227935U (en) | 2017-07-13 | 2017-07-13 | A kind of bridge prefabrication substructure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207227935U true CN207227935U (en) | 2018-04-13 |
Family
ID=61852329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201720846073.1U Active CN207227935U (en) | 2017-07-13 | 2017-07-13 | A kind of bridge prefabrication substructure |
Country Status (1)
| Country | Link |
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| CN (1) | CN207227935U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108547216A (en) * | 2018-06-12 | 2018-09-18 | 北京市市政工程设计研究总院有限公司 | Bridge prefabrication performance of concrete column confined and bridge foundation alligator bell and spigot frame and construction method |
| CN110093862A (en) * | 2019-05-31 | 2019-08-06 | 浙江省交通规划设计研究院有限公司 | Vertically and horizontally assembled three working face Bridge Erectors and bent cap can be achieved without sidewalk section assembling engineering method |
| CN110359363A (en) * | 2019-07-26 | 2019-10-22 | 山东建筑大学 | Prestressing force assembled Self-resetting bridge pier column node and method are cohered in a kind of part |
| WO2020001156A1 (en) * | 2018-06-29 | 2020-01-02 | 比亚迪股份有限公司 | Bridge and bridge pier thereof |
| CN112647619A (en) * | 2020-12-17 | 2021-04-13 | 西南科技大学 | Construction method of assembled large-span internal partition wall |
| CN112796202A (en) * | 2021-01-27 | 2021-05-14 | 广东省交通规划设计研究院股份有限公司 | Bridge splicing structure and construction method thereof |
-
2017
- 2017-07-13 CN CN201720846073.1U patent/CN207227935U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108547216A (en) * | 2018-06-12 | 2018-09-18 | 北京市市政工程设计研究总院有限公司 | Bridge prefabrication performance of concrete column confined and bridge foundation alligator bell and spigot frame and construction method |
| CN108547216B (en) * | 2018-06-12 | 2023-07-11 | 北京市市政工程设计研究总院有限公司 | Bridge precast concrete pier column and bridge foundation tooth key socket structure and construction method |
| WO2020001156A1 (en) * | 2018-06-29 | 2020-01-02 | 比亚迪股份有限公司 | Bridge and bridge pier thereof |
| CN110093862A (en) * | 2019-05-31 | 2019-08-06 | 浙江省交通规划设计研究院有限公司 | Vertically and horizontally assembled three working face Bridge Erectors and bent cap can be achieved without sidewalk section assembling engineering method |
| CN110093862B (en) * | 2019-05-31 | 2024-04-05 | 浙江数智交院科技股份有限公司 | Three-working-face bridge girder erection machine capable of realizing longitudinal and transverse assembly and bent cap non-channel segment assembly construction method |
| CN110359363A (en) * | 2019-07-26 | 2019-10-22 | 山东建筑大学 | Prestressing force assembled Self-resetting bridge pier column node and method are cohered in a kind of part |
| CN112647619A (en) * | 2020-12-17 | 2021-04-13 | 西南科技大学 | Construction method of assembled large-span internal partition wall |
| CN112796202A (en) * | 2021-01-27 | 2021-05-14 | 广东省交通规划设计研究院股份有限公司 | Bridge splicing structure and construction method thereof |
| CN112796202B (en) * | 2021-01-27 | 2024-09-13 | 广东省交通规划设计研究院集团股份有限公司 | Bridge assembly structure and construction method thereof |
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