CN112502030A - Prefabricated assembled bridge substructure slot-in type and socket joint formula built-up connection structure - Google Patents
Prefabricated assembled bridge substructure slot-in type and socket joint formula built-up connection structure Download PDFInfo
- Publication number
- CN112502030A CN112502030A CN202011216653.5A CN202011216653A CN112502030A CN 112502030 A CN112502030 A CN 112502030A CN 202011216653 A CN202011216653 A CN 202011216653A CN 112502030 A CN112502030 A CN 112502030A
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- Prior art keywords
- prefabricated
- pier
- socket
- type connection
- bridge
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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
-
- 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
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
- E02D27/14—Pile framings, i.e. piles assembled to form the substructure
Abstract
The invention discloses a slot-in type and socket type combined connecting structure of a prefabricated assembly type bridge lower structure, which comprises a prefabricated bridge pier, prefabricated bridge pier main ribs, a bearing platform, positioning cushion blocks, a cushion layer, a corrugated pipe, a reinforcing mesh, a steel template and a post-pouring cup opening, wherein the prefabricated bridge pier main ribs are arranged on the prefabricated bridge pier main ribs; prefabricated pier lower part inlayed the steel form, prefabricated pier bottom surface and cushion cap rim of a cup top surface between set up the mortar bed course, the pre-buried cushion cap of bellows in, its quantity and position need match with the fluting mouth, the prefabricated pier owner muscle that set up in order to make the prefabricated pier owner muscle insert in the cushion cap bellows, the reinforcing bar net set up in the cushion cap post-pouring cup, link into whole through post-pouring concrete with prefabricated pier and cushion cap. The invention has simple construction, controllable quality, easy control, safety and reliability; through overhanging prefabricated pier owner muscle and setting up the post-cast cup mouth, the bearing capacity improves greatly, and intensity is high, and the ductility is good, can be used to prefabricated assembled bridge understructure connection in high earthquake district, and application scope is extensive.
Description
The invention relates to a slot-in type and socket type combined connecting structure of a lower structure of a prefabricated assembled bridge, and belongs to the field of assembled bridge engineering.
Background
With the continuous upgrade and policy promotion of the industrialized construction of the traffic engineering in China in recent years, a large batch of prefabricated assembled structures are applied to the bridge engineering, and the application of the prefabricated assembly technology is more and more extensive. The common methods for prefabricating and assembling bridge substructure at present mainly include grouting sleeve connection, socket connection, slot connection and the like. The grouting sleeve is convenient and quick to connect and construct, but the requirements on construction precision and grouting professional technical ability are high, and the field grouting quality is not easy to control; socket joint formula is connected and slot-in type connects simple structure, and the construction is swift, but the regional performance of connection is unclear, and the ductility is relatively poor, is applicable to general engineering. Therefore, the development of a high-quality, high-efficiency and universal prefabricated bridge substructure connecting structure is necessary.
Disclosure of Invention
Aiming at the technical defects of the conventional method for connecting the lower part structure of the prefabricated bridge and the requirement of high-quality development of the prefabricated assembly technology of bridge engineering, the invention provides a high-quality, high-efficiency and universal inserting-groove type and socket-and-spigot type combined connecting structure for the lower part structure of the prefabricated bridge. The defects of poor ductility and unclear anti-seismic performance of the existing slot type connection and socket type connection technologies are overcome, and the defects of uncontrollable grouting quality, difficult matching of construction precision and the like of the existing grouting sleeve connection technology are overcome. So that it simple structure, construction convenience, ductility are good to make the prefabricated structure of assembling have sufficient ductility and antidetonation atress performance, make prefabricated assembled bridge substructure overall quality higher, the range of application is wider.
The technical scheme adopted by the invention is as follows:
the utility model provides a prefabricated assembled bridge substructure slot-in type and socket joint formula built-up connection structure which characterized in that: the bridge pier comprises a prefabricated bridge pier, prefabricated bridge pier main ribs, a bearing platform, a positioning cushion block, a cushion layer, a corrugated pipe, a reinforcing mesh, a steel template and a post-pouring cup mouth; prefabricated pier lower part make the shear force groove, the installation is gone on and is carried out the surface napping and handle, prefabricated pier lower part inlayed the steel form for the notch, a plurality of prefabricated pier owner muscle overhanging, the cushion cap on be equipped with prefabricated pier installation rim of a cup and location cushion, pre-buried reinforcing bar net vertical reinforcement and bellows, prefabricated pier bottom surface and cushion cap rim of a cup top surface between set up the mortar bed course, the pre-buried cushion cap of bellows in, its quantity and position need to match mutually with the notch of setting, the overhanging owner muscle of prefabricated pier in order to make prefabricated pier owner muscle insert the cushion cap bellows, reinforcing bar net set up behind the cushion cap in watering the rim of a cup, it is whole to connect into prefabricated pier and cushion cap through post-watering concrete.
The further technology of the invention is as follows:
preferably, the prefabricated bridge pier can be designed to be a hollow section, a circular section, a rectangular section and the like, the lower connecting area is made into a shear groove, and surface roughening treatment is carried out before installation, so that the sufficient combination of the prefabricated bridge pier and the post-pouring cup opening concrete is improved.
Preferably, prefabricated pier lower part inlayed the steel form, be equipped with the notch for prefabricated pier owner muscle is reserved the grout and is pour the notch.
Preferably, a plurality of main ribs of the prefabricated pier extend outwards and are inserted into the bearing platform, and the extending main ribs need to be subjected to rust prevention treatment.
Preferably, the bearing platform is provided with a prefabricated pier mounting cup mouth, a positioning cushion block, a pre-embedded reinforcing mesh vertical reinforcing steel bar and a corrugated pipe.
Preferably, in the pre-buried cushion cap of bellows, its quantity and position need match with the fluting mouth that sets up, the overhanging main muscle of prefabricated pier in order to make prefabricated pier main muscle insert in the cushion cap bellows.
Preferably, a positioning cushion block is arranged on the top surface of the position of the bearing platform mounting cup mouth and used for mounting, positioning and auxiliary fixing of the prefabricated pier.
Preferably, a mortar cushion layer is arranged between the bottom surface of the prefabricated pier and the top surface of the cup opening of the bearing platform.
Preferably, the reinforcing mesh comprises vertical embedded steel bars and transverse steel bars of a bearing platform, and the reinforcing mesh is arranged in a cup opening of the bearing platform, so that the connection integrity of the prefabricated pier and the bearing platform is improved.
Preferably, after the prefabricated bridge pier and the bearing platform are installed in place, the rear pouring cup opening is formed by pouring and connecting concrete which is higher than the prefabricated bridge pier by one grade.
The invention has the beneficial effects that:
firstly, the slot-in type and socket type combined connecting structure of the prefabricated assembled bridge lower structure is simple in structure, low in construction precision requirement, convenient and fast;
secondly, the slot-in type and socket joint type combined connecting structure is provided with a slot opening and pouring grouting material through pre-embedding a steel template, the grouting material is simple and convenient to construct, the quality is controllable and easy to control, and the slot-in type and socket joint type combined connecting structure is safe and reliable;
thirdly, the slot-in type and socket joint formula built-up connection structure through overhanging prefabricated pier owner muscle and set up the post-cast cup mouth, the bearing capacity improves greatly, and intensity is high, and the ductility is good, can be used to prefabricated assembled bridge substructure connection in high earthquake district, and application scope is extensive.
Drawings
FIG. 1 is a schematic view of a slot-in type and socket type combined connection structure of a lower structure of a prefabricated assembled bridge;
fig. 2 is a schematic elevation view of a slot-in type and socket type combined connection structure of a prefabricated bridge lower structure.
Fig. 3 is a schematic diagram of a prefabricated pier.
FIG. 4 is a schematic view of a platform.
In the figure, the pier comprises a prefabricated pier 1, a prefabricated pier 2, a bearing platform 3, a prefabricated pier main rib 4, a positioning stop block 5, a cushion layer 6, a corrugated pipe 7, a reinforcing mesh 8, a steel template 9 and a post pouring cup opening.
The specific implementation structure is as follows:
in order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
Example 1: referring to fig. 1 to 4, a prefabricated bridge girder substructure slot-in type and socket-and-spigot type combined connection structure includes a prefabricated bridge pier 1, a bearing platform 2, prefabricated bridge pier main reinforcements 3, positioning stoppers 4, a cushion layer 5, a corrugated pipe 6, a reinforcement mesh 7, a steel template 8, and a post-pouring cup opening 9; 1 lower part of prefabricated pier make the shear force groove, the surface napping is handled before the installation, prefabricated pier lower part inlayed steel form 8 for the notch, a plurality of prefabricated pier owner muscle 3 overhanging, cushion cap 2 be equipped with prefabricated pier installation rim of a cup and location cushion 4, pre-buried reinforcing bar net vertical reinforcement and bellows, prefabricated pier bottom surface and cushion cap rim of a cup top surface between set up mortar cushion 5, 6 pre-buried cushion caps of bellows in, its quantity and position need to match with the notch that sets up, prefabricated pier owner muscle in order to make prefabricated pier owner muscle insert in the cushion cap bellows, reinforcing bar net 7 set up behind the cushion cap in watering the rim of a cup 9, become whole with prefabricated pier and cushion cap through post-pouring concrete connection.
The prefabricated pier 1 is designed to be a hollow section, the lower part of the prefabricated pier is made into a (3 multiplied by 5cm) shear groove, and surface roughening treatment is carried out before installation, so that the full combination of the prefabricated pier and post-pouring cup opening concrete is improved.
The bearing platform 2 is reserved with a prefabricated pier mounting cup mouth, embedded reinforcing mesh vertical reinforcing steel bars and embedded corrugated pipes.
A plurality of main ribs 3 of the prefabricated bridge pier extend outwards and are inserted into a bearing platform corrugated pipe 6, and the extending main ribs need to be subjected to rust prevention treatment.
The section size of the positioning cushion block 4 is 50cm (diameter) multiplied by 40cm (height), and the side face and the inner wall of the prefabricated pier keep a distance of 1-2 cm and are used for installation positioning and auxiliary fixing of the prefabricated pier.
The thickness of the cushion layer 5 is 2cm, and the cushion layer is made of C50 epoxy mortar and is arranged between the prefabricated bridge pier and the bearing platform.
In the pre-buried cushion cap of bellows 6, adopt the galvanized metal bellows of diameter 60mm, its position and quantity need and the fluting of prefabricated pier of setting, overhanging prefabricated pier owner muscle need match mutually in order to make prefabricated pier owner muscle insert in the cushion cap bellows.
The reinforcing mesh 7 comprises vertical embedded steel bars and transverse steel bars of the bearing platform and is arranged in the cup opening of the bearing platform, and the connection integrity of the prefabricated bridge pier and the bearing platform is improved.
The lower part of the prefabricated pier is embedded with a steel template 8 for grooving, the size of the groove opening is 90mm multiplied by 60mm multiplied by 150mm, the overhanging part of the main rib of the prefabricated pier is anchored in an auxiliary mode, and grouting materials of the corrugated pipe of the bearing platform are poured, and the steel template 8 consists of five steel plates which are respectively a bottom die, a top die and a side die.
And after the prefabricated bridge pier and the bearing platform are installed, the post-pouring cup opening 9 is cast and connected into a whole by selecting concrete higher than the prefabricated bridge pier by one grade.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the foregoing invention and the description described therein are merely illustrative of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides a prefabricated assembled bridge substructure slot-in type and socket joint formula built-up connection structure which characterized in that: the bridge pier comprises a prefabricated bridge pier, prefabricated bridge pier main ribs, a bearing platform, a positioning cushion block, a cushion layer, a corrugated pipe, a reinforcing mesh, a steel template and a post-pouring cup mouth; prefabricated pier lower part make the shear force groove, the installation is gone on and is carried out the surface napping and handle, prefabricated pier lower part inlayed the steel form for the notch, a plurality of prefabricated pier owner muscle overhanging, the cushion cap on be equipped with prefabricated pier installation rim of a cup and location cushion, pre-buried reinforcing bar net vertical reinforcement and bellows, prefabricated pier bottom surface and cushion cap rim of a cup top surface between set up the mortar bed course, the pre-buried cushion cap of bellows in, its quantity and position need to match mutually with the notch that sets up, prefabricated pier owner muscle and make prefabricated pier owner muscle insert in the cushion cap bellows, reinforcing bar net set up in the pouring basin behind the cushion cap, it is whole to connect into prefabricated pier and cushion cap through back pouring concrete.
2. The prefabricated assembled bridge substructure of claim 1, wherein the connection structure is a combination of a socket-type connection and a socket-type connection, wherein: the prefabricated bridge pier can be designed into a hollow section, a circular section, a rectangular section and the like, the lower connecting area is made into a shear groove, and surface roughening treatment is carried out before installation, so that the full combination of the prefabricated bridge pier and post-pouring cup opening concrete is improved.
3. The prefabricated assembled bridge substructure of claim 1, wherein the connection structure is a combination of a socket-type connection and a socket-type connection, wherein: prefabricated pier lower part inlayed and have the steel form, be equipped with the notch for prefabricated pier owner muscle is reserved the grout and is pour the notch.
4. The prefabricated assembled bridge substructure of claim 1, wherein the connection structure is a combination of a socket-type connection and a socket-type connection, wherein: a plurality of main ribs of the prefabricated bridge pier extend outwards and are inserted into the bearing platform, and the main ribs extending outwards need to be subjected to anti-rust treatment.
5. The prefabricated assembled bridge substructure of claim 1, wherein the connection structure is a combination of a socket-type connection and a socket-type connection, wherein: the bearing platform is provided with a prefabricated pier mounting cup mouth, a positioning cushion block, a pre-embedded reinforcing mesh vertical reinforcing steel bar and a corrugated pipe.
6. The prefabricated assembled bridge substructure of claim 1, wherein the connection structure is a combination of a socket-type connection and a socket-type connection, wherein: in the pre-buried cushion cap of bellows, its quantity and position need match with the fluting mouth that sets up, prefabricated pier owner muscle in order to make prefabricated pier owner muscle insert in the cushion cap bellows.
7. The prefabricated assembled bridge substructure of claim 1, wherein the connection structure is a combination of a socket-type connection and a socket-type connection, wherein: and a positioning cushion block is arranged on the top surface of the position of the bearing platform mounting cup mouth and used for mounting, positioning and auxiliary fixing of the prefabricated bridge pier.
8. The prefabricated assembled bridge substructure of claim 1, wherein the connection structure is a combination of a socket-type connection and a socket-type connection, wherein: and a mortar cushion layer is arranged between the bottom surface of the prefabricated pier and the top surface of the cup opening of the bearing platform.
9. The prefabricated assembled bridge substructure of claim 1, wherein the connection structure is a combination of a socket-type connection and a socket-type connection, wherein: the reinforcing mesh comprises vertical embedded steel bars and transverse steel bars of a bearing platform, and is arranged in a cup opening of the bearing platform, so that the connection integrity of the prefabricated bridge pier and the bearing platform is improved.
10. The prefabricated assembled bridge substructure of claim 1, wherein the connection structure is a combination of a socket-type connection and a socket-type connection, wherein: and after the prefabricated bridge pier and the bearing platform are installed, the rear pouring cup opening selects concrete which is higher than the prefabricated bridge pier by one grade, and the concrete is poured and connected into a whole.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011216653.5A CN112502030A (en) | 2020-11-04 | 2020-11-04 | Prefabricated assembled bridge substructure slot-in type and socket joint formula built-up connection structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011216653.5A CN112502030A (en) | 2020-11-04 | 2020-11-04 | Prefabricated assembled bridge substructure slot-in type and socket joint formula built-up connection structure |
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| CN112502030A true CN112502030A (en) | 2021-03-16 |
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| CN202011216653.5A Pending CN112502030A (en) | 2020-11-04 | 2020-11-04 | Prefabricated assembled bridge substructure slot-in type and socket joint formula built-up connection structure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113089500A (en) * | 2021-05-18 | 2021-07-09 | 中国建筑股份有限公司 | Socket type connecting structure based on T-shaped groove and construction method thereof |
| CN113668388A (en) * | 2021-07-14 | 2021-11-19 | 武汉二航路桥特种工程有限责任公司 | Pier-beam cooperative integral rapid installation and removal method based on vehicle-mounted equipment |
| CN114263093A (en) * | 2022-01-22 | 2022-04-01 | 郑州大学 | Fully-prefabricated assembled bridge and construction method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113089500A (en) * | 2021-05-18 | 2021-07-09 | 中国建筑股份有限公司 | Socket type connecting structure based on T-shaped groove and construction method thereof |
| CN113089500B (en) * | 2021-05-18 | 2022-05-24 | 中国建筑股份有限公司 | Socket type connecting structure based on T-shaped groove and construction method thereof |
| CN113668388A (en) * | 2021-07-14 | 2021-11-19 | 武汉二航路桥特种工程有限责任公司 | Pier-beam cooperative integral rapid installation and removal method based on vehicle-mounted equipment |
| CN113668388B (en) * | 2021-07-14 | 2023-12-19 | 中交特种工程有限公司 | Pier-beam collaborative integral rapid installation and removal method based on vehicle-mounted equipment |
| CN114263093A (en) * | 2022-01-22 | 2022-04-01 | 郑州大学 | Fully-prefabricated assembled bridge and construction method |
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