CN209368692U

CN209368692U - With support swivel without Cast-in-Situ Segment Long Span Continuous Rigid-Frame Structure beam

Info

Publication number: CN209368692U
Application number: CN201822168736.6U
Authority: CN
Inventors: 孙中华; 李鹏翱; 李彩红; 连荣峰; 张红欣; 尚海平
Original assignee: China Railway No 3 Engineering Group Co Ltd; Six Engineering Co Ltd of China Railway No 3 Engineering Group Co Ltd
Current assignee: China Railway No 3 Engineering Group Co Ltd; Six Engineering Co Ltd of China Railway No 3 Engineering Group Co Ltd
Priority date: 2018-12-24
Filing date: 2018-12-24
Publication date: 2019-09-10
Anticipated expiration: 2028-12-24

Abstract

The utility model belongs to the technical field of cross-line bridge construction, more particularly to it is a kind of with support swivel without Cast-in-Situ Segment Long Span Continuous Rigid-Frame Structure beam, including pouring the beam body constituted by end bay Cast-in-Situ Segment and several closure segments, and the abutment pier of transition support beam body, end bay Cast-in-Situ Segment bottom has poured pre-buried support, high bent cap is equipped at the top of abutment pier, low bent cap and bearing pad stone, high bent cap and bearing pad stone are installed on above low bent cap, bearing pad stone is located on the inside of high bent cap and height is lower than high bent cap, pre-buried seat supports are installed on bearing pad stone, end bay Cast-in-Situ Segment is mounted on the inside of high bent cap.Whole beam body band support is first applied before beam body rotation to pour, the swivels such as high cushion cap carry out pouring construction afterwards in place, low cushion cap pours completion before rotator construction, but bearing pad stone need to rotate in place after carry out pouring construction again, the problems such as which overcomes above or near both wired both wired constructions.

Description

With support swivel without Cast-in-Situ Segment Long Span Continuous Rigid-Frame Structure beam

Technical field

The utility model belongs to the technical field of cross-line bridge construction, and in particular to it is a kind of with support swivel without Cast-in-Situ Segment Long Span Continuous Rigid-Frame Structure beam.

Background technique

It mostly uses cantilever cradle to construct across both wired constructions now, the methods of closes up above conventional rotator construction route and to apply Work brings greater risk to existing line operation, and Cast-in-Situ Segment uses rack construction, closes on existing line, and construction risk is big, applies How the problems such as work difficulty is big, and construction efficiency is low guarantees the construction rapidly and efficiently of cross-line bridge, reduces engineering construction wind Danger.

Summary of the invention

Closure segment and end bay Cast-in-Situ Segment and end bay closure segment when the utility model type is in order to solve cross-line bridge construction, to both Wired influence and the high problem of security risk, propose a kind of no Cast-in-Situ Segment Long Span Continuous Rigid-Frame Structure sill bolt support rotator construction side Method.

The utility model adopts the following technical solution:

It is a kind of with support swivel without Cast-in-Situ Segment Long Span Continuous Rigid-Frame Structure beam, including by end bay Cast-in-Situ Segment and several closure segments The beam body of composition and the abutment pier of transition support beam body are poured, end bay Cast-in-Situ Segment bottom has poured pre-buried support, set at the top of abutment pier There are high bent cap, low bent cap and bearing pad stone, high bent cap and bearing pad stone are installed on above low bent cap, and bearing pad stone is located at high bent cap Inside and height is lower than high bent cap, pre-buried seat supports are installed on bearing pad stone, and end bay Cast-in-Situ Segment is mounted in high bent cap Inside.

The high bent cap sectional area is the half of low bent cap sectional area.

The utility model is directed to cross-line bridge, and existing cross-line bridge is existing using parallel circuit direction cantilever method or bracket The method of pouring pours beam body, the construction method rotateing in place, and the utility model cancels conventional swivel setting end bay Cast-in-Situ Segment and closure segment, Both big problems of wired construction risk are avoided above or near route, the whole beam body band support of reality poured before beam body rotation, side When high low platform is arranged in pier, the swivels such as high cushion cap carry out pouring construction afterwards in place, and low cushion cap pours completion before rotator construction, but props up Seat cushion stone carries out pouring construction after need to rotateing in place again, which overcomes both wired constructions etc. above or near both wired Problem ensure that the operational safety of business route, reduce construction risk, ensure that construction safety, improve construction efficiency.

Detailed description of the invention

Fig. 1 is that band support turns beam body vertical section layout drawing；

Fig. 2 is transition pier capping beam layout drawing；

Fig. 3 is swivel into bridge skiagraph；

In figure: the pre-buried support of 1-1,1-2 end bay Cast-in-Situ Segment, 1-3 closure segment, 2-1 high bent cap, the low bent cap of 2-2,2-3 support Pinner.

Specific embodiment

In conjunction with attached drawing, specific embodiment of the present utility model is described further:

It is as shown in Figure 1, 2, 3 with support swivel without Cast-in-Situ Segment Long Span Continuous Rigid-Frame Structure beam, including by end bay Cast-in-Situ Segment 1-2 and several closure segment 1-3 pours the beam body of composition and the abutment pier of transition support beam body, and the bottom end bay Cast-in-Situ Segment 1-2 pours There is pre-buried support 1-1, is equipped with high bent cap 2-1, low bent cap 2-2 and bearing pad stone 2-3, high bent cap 2-1 and branch seat cushion at the top of abutment pier Stone 2-3 is installed on above low bent cap 2-2, and bearing pad stone 2-3 is located on the inside of high bent cap 2-1 and height is lower than high bent cap 2-1, pre-buried Support 1-1 support is installed on bearing pad stone 2-3, and end bay Cast-in-Situ Segment 1-2 is mounted on the inside of high bent cap 2-1.

The Construction Principle of the utility model is to turn to change conventional construction technique in advance, by conventional construction technique edges across cast-in-place Two section, conventional construction technique closure segment stage beam one-time-concretings are completed, and pre-buried support is pre-buried in advance when pouring；It crosses When crossing pier construction, at low bent cap, high bent cap and low bent cap after-pouring, bearing pad stone are not constructed first for first construction, etc. beam bodies rotation Pouring construction bearing pad stone again after in place, high bent cap of then constructing.

The utility model is for single pier double-vane large span across both wired bridges, proposition with support swivel without cast-in-place Section Long Span Continuous Rigid-Frame Structure beam and its construction method eliminate conventional swivel setting end bay Cast-in-Situ Segment and closure segment, avoid line Road side or near existing line construction risk big problem are first applied whole beam body band support and are poured before beam body rotation, abutment pier setting is high At low, the swivels such as high cushion cap carry out pouring construction afterwards in place, and low cushion cap pours completion before rotator construction, but bearing pad stone needs Pouring construction is carried out after rotateing in place again, the problems such as which overcomes above or near both wired both wired constructions, is protected The operational safety for having demonstrate,proved business route, reduces construction risk, ensure that construction safety, improves construction efficiency.

Claims

1. it is a kind of with support swivel without Cast-in-Situ Segment Long Span Continuous Rigid-Frame Structure beam, which is characterized in that including by end bay Cast-in-Situ Segment (1- 2) and several closure segments (1-3) pours the beam body of composition and the abutment pier of transition support beam body, the bottom end bay Cast-in-Situ Segment (1-2) It has poured pre-buried support (1-1), high bent cap (2-1), low bent cap (2-2) and bearing pad stone (2-3), high bent cap is equipped at the top of abutment pier (2-1) and bearing pad stone (2-3) are installed on above low bent cap (2-2), bearing pad stone (2-3) be located at high bent cap (2-1) inside and Height is lower than high bent cap (2-1), and pre-buried support (1-1) support is installed on bearing pad stone (2-3), end bay Cast-in-Situ Segment (1-2) limit Position is installed on the inside of high bent cap (2-1).

2. it is according to claim 1 with support swivel without Cast-in-Situ Segment Long Span Continuous Rigid-Frame Structure beam, which is characterized in that it is described High bent cap (2-1) sectional area is the half of low bent cap (2-2) sectional area.