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Cast-in-situ construction method of 2209 beam flange plate

A flange plate and cast-in-place technology, which is applied in bridges, bridge construction, erection/assembly of bridges, etc., can solve the problems of complex structure, limited scope of application, and difficult assembly of forming machines, and achieve low cost, simple materials, and convenience The effect of the operation

Active Publication Date: 2018-06-19
CHINA RAILWAY SIXTH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the molding machine is complex in structure, difficult to assemble, and inconvenient to transport. It is only an idea. There are many difficulties in practical application, and the scope of application is limited.

Method used

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  • Cast-in-situ construction method of 2209 beam flange plate
  • Cast-in-situ construction method of 2209 beam flange plate
  • Cast-in-situ construction method of 2209 beam flange plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] The invention discloses a cast-in-place construction method for 2209 beam flange plates, which has the following characteristics:

[0028] 1. Construction period

[0029] With one set of formwork as a working surface, each span of 2209 beam sound barrier cast-in-place is a working cycle, and personnel are reasonably arranged to support formwork, steel bar binding, pouring concrete, concrete curing, and formwork removal. It takes 7 days to pour a span of 2209 beams using a set of arrangement suspension tooling.

[0030] 2. Quality

[0031] The arrangement and suspension method is adopted, the construction structure is stable and reliable, the working platform is easy to operate, the concrete vibration and maintenance meet the requirements, and can meet the construction acceptance standards.

[0032] 3. Environmental protection

[0033] The steel bar waste produced by this construction method is uniformly recycled; the concrete construction uses a bucket, and the remai...

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PUM

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Abstract

The invention relates to the field of construction technologies for bridges, particularly relates to the field of construction technologies for 2209 beams of traffic bridges (2012), and particularly discloses a cast-in-situ construction method for 2209 beam flange plates. The cast-in-situ construction method includes supporting and erecting formworks by the aid of arranged cantilever hanging processes; laying H-section steel to be used as cantilevers below steel rails on bridge decks; fixing another piece of H-section steel to be used as a framework to the lower side of each cantilever; laying set-shaped formworks. The cast-in-situ construction method has the advantages that the formworks for 2209 beam bridge deck slabs can be assembled by the aid of simple and common materials, assembly structures are simple and stable, only few constructors are required and can easily implement the in-situ construction method, and the in-situ construction method is low in construction cost; tracks and station tracks do not need to be closed in construction procedures, and accordingly the transport smoothness of roads with laid rails can be guaranteed.

Description

technical field [0001] The present invention relates to the technical field of bridge construction, in particular to the technical field of construction of bridge (2012) 2209 beams. Background technique [0002] The Economic Planning Research Institute of the Ministry of Railways released the "Prefabricated Post-tensioned Simply Supported T-beam (with Sound Barrier) for 200km / h Passenger and Freight Collinear Railway" in November 2012. Drawing No.: Tongqiao (2012) 2209 General Reference Drawing, hereinafter referred to as 2209 beam. Since the application of this beam type, the cast-in-place construction of the flange slab has become a major difficulty for various construction units. The main problem is that it is difficult to support and dismantle the bridge deck formwork on the bridge. [0003] Zhao Peixian et al. Discussion on construction difficulties of Tongqiao (2012) 2209T girder, Railway Standard Design, September 2014, No. 9, disclosed a bridge deck forming machine,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D21/00
CPCE01D21/00
Inventor 翟贞旭王勇刘小辉胡正勇李峰鄢雨红陈力贞毛家旭王思阳秦鹏
Owner CHINA RAILWAY SIXTH GRP CO LTD