Construction method of V-shaped thin-wall pier and 0 # block main beam supporting system

Abstract

The invention relates to the technical field of bridge construction, in particular to a construction method of a V-shaped thin-wall pier and No. 0 block main beam supporting system. The invention is characterized by comprising construction of an outer supporting system and construction of an inner supporting system of the V-shaped thin-wall pier, and comprises the steps that finish rolling deformed steel bar split bolts are arranged in the V-shaped thin-wall pier, so that two inclined limbs of the V-shaped thin-wall pier are connected into a whole to form an overall stress structure; a steel plate is pre-buried in the V-shaped thin-wall pier, so that the V-shaped thin-wall pier inner supporting system and the V-shaped thin-wall pier are connected into a whole. The invention has the advantages that the characteristic of good stability of a triangle is utilized, the overall stability of a supporting system and the V-shaped thin-wall pier is guaranteed, and it is guaranteed that the two oblique limbs do not overturn outwards in the concrete pouring period.

Description

technical field [0001] The invention relates to the technical field of bridge construction, in particular to a construction method for a V-shaped thin-walled pier and a 0# block main beam support system. Background technique [0002] The earlier V-shaped continuous rigid-frame bridge with thin-walled piers appeared in France in the 1950s. Since then, bridges with similar structures have been built in Japan, the United Kingdom, the Netherlands, and Germany. After entering the 1990s, foreign V-shaped bridges The span of continuous rigid frame bridges with thin-walled piers increases gradually, and the self-weight is further reduced, and some V-shaped thin-walled piers with steel structures and concrete box structures appear. my country's V-shaped continuous rigid-frame bridge with thin-walled piers started relatively late. The first V-shaped continuous rigid-frame bridge with thin-walled piers was the Zhishan Lijiang Bridge in Guilin, Guangxi, built in 1988. In the following p...

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Problems solved by technology

[0003] V-shaped continuous rigid frame bridge with thin-walled piers has various advantages in terms of structural shape, stress form, prestressed reinforcement layout method, selection of pier column materials, construction methods, etc., but its construction is cumbersome and requires a large amount of construction. , this is because the wall of the V-shaped thin-walled pier is thin, and the two oblique limbs are easy to overturn to the outside

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