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Construction method for partition pouring of special-shaped integral bearing platform through non-dismantling formwork alternative bay method

A technology without dismantling formwork and construction method, which is applied in construction, infrastructure engineering and other directions, can solve the problems of unguaranteed construction quality and affect the safety of bridges, and achieve the effect of improving construction efficiency, saving construction costs and reducing labor.

Pending Publication Date: 2022-02-11
ANHUI HIGHWAY BRIDGE ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the construction quality of the large-volume concrete cap is not guaranteed, it will affect the safety of the entire bridge

Method used

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  • Construction method for partition pouring of special-shaped integral bearing platform through non-dismantling formwork alternative bay method
  • Construction method for partition pouring of special-shaped integral bearing platform through non-dismantling formwork alternative bay method
  • Construction method for partition pouring of special-shaped integral bearing platform through non-dismantling formwork alternative bay method

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Experimental program
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Effect test

Embodiment 1

[0085] see Figure 1-6 , the present invention provides a technical solution: a construction method of dismantling-free formwork jump warehouse method for sub-area casting of special-shaped integral caps, which is characterized in that it includes the following aspects:

[0086] 1. Process principle

[0087] mainly includes:

[0088] (1) Construction by jumping warehouse method: In this construction method, the entire cap is divided into different areas before construction, and the cap area is constructed first, and then the connecting tie beams are constructed. This method turns two construction joints into one construction joint, and the adjacent concrete pouring joints are tight and integrated, canceling the secondary pouring, shortening the construction time, and improving the construction efficiency; at the same time, the internal stress of the early concrete can be released as much as possible, Relieve and reduce the restraint effect, and use the tensile capacity of co...

Embodiment 2

[0157] Yafu Road (Chaohu South Road ~ Ganggang Avenue) project in Chaohu City

[0158] 1. Project overview

[0159] The Yafu Road (Chaohu South Road-Ganggang Avenue) project in Chaohu City is located in the southeast area of ​​Chaohu City. The starting point of the project is Chaohu South Road (stake number: 0+54.921), and the end point is Ganggang Avenue (stake number: 26+30). Going east-west, it intersects with Chaohu South Road, Wangzhi Road, Wangye Road, Shugang Avenue, and Ganggang Avenue along the way (the Ganggang Avenue is the current road, Chaohu South Road is the road under construction, and the rest are planned roads), with a total length of about 2.585 kilometers , the standard section width of the road is 52m, and it is an urban trunk road.

[0160] Yafu Road Crossing Yuxi River Bridge is a super-large bridge with a total length of 974m. There are five bridges in total, the fourth bridge is the main bridge and crosses the Yuxi River, and the second bridge spans Sh...

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Abstract

The invention discloses a construction method for partition pouring of a special-shaped integral bearing platform through a non-dismantling formwork alternative bay method. According to the construction method, when a large special-shaped integral bearing platform is constructed, the construction method of the alternative bay method and the layered and regional construction method are adopted, meanwhile, non-dismantling formworks are used in a matched mode, cooling water pipes are arranged, steel cofferdam system conversion is completed in the construction process, the whole process of concrete stirring, transportation, mold entering, pouring and the like in construction is controlled, the concrete mixing proportion is optimized, maintenance is enhanced, it is guaranteed that the quality of the bearing platform foundation meets the requirement, one-time investment of manpower, materials and machines can be reduced, meanwhile, the construction efficiency can be improved, the construction progress can be accelerated, and the construction cost can be saved.

Description

technical field [0001] The invention relates to the technical field of construction of a large-scale special-shaped integral cap, in particular to a construction method for pouring a special-shaped integral cap in partitions without dismantling formwork and jumping warehouses. Background technique [0002] In recent years, with the rapid development of my country's economy and the enhancement of comprehensive national strength, my country's highway construction has developed rapidly, and the construction scale of bridges with long-span special-shaped structures has continued to increase, making more and more bridge caps adopt the special-shaped integral type Massive concrete structure. This type of cap has the characteristics of large amount of concrete, thick structure, complex engineering conditions, large cement hydration heat, and high construction technology requirements. In addition to meeting the requirements for strength, integrity, and durability, temperature deforma...

Claims

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Application Information

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IPC IPC(8): E02D27/14E02D15/02C04B40/00
CPCE02D27/14E02D15/02C04B40/0075
Inventor 王家启孙伟王生涛唐瑞方昂
Owner ANHUI HIGHWAY BRIDGE ENG CO LTD
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