Double-row four-slanting-leg steel-structure gate-type pier

Abstract

The invention belongs to the technical field of bridge pier columns, and particularly relates to a double-row four-slanting-leg steel-structure gate-type pier. The double-row four-slanting-leg steel-structure gate-type pier comprises a NO. 0 block and a steel bent cap; the two ends of the bottom of the steel bent cap are respectively connected with a left-row pier column and a right-row pier column; a left bearing platform and a right bearing platform are respectively arranged at the bottoms of the left-row pier column and the right-row pier column; the left-row pier column comprises a first left pier column and a second left pier column, the tops of the first left pier column and the second left pier column intersect at one end of the bottom of the steel bent cap, and the bottoms of the first left pier column and the second left pier column are respectively connected with the two ends of the left bearing platform; the right-row pier column comprises a first right pier column and a second right pier column; the tops of the first right pier column and the second right pier column intersect at the other end of the bottom of the steel bent cap, and the bottoms of the first right pier column and the second right pier column are respectively connected with the two ends of the right bearing platform. By the adoption of the double-row four-slanting-leg steel-structure gate-type pier, a large-span bridge structure can be eliminated, so that the investment is reduced, the construction schedule is accelerated, and interference to existing roads is reduced.

Description

technical field [0001] The invention belongs to the technical field of bridge pier columns, and in particular relates to a steel structure portal pier with double rows and four oblique legs. Background technique [0002] The existing continuous rigid frame piers and girders are all made of concrete structures, and most of them are single-column piers. When crossing the road interchange in the city, some continuous rigid frame piers adopt concrete portal piers, but most of them are continuous rigid frames with small and medium spans. When the span of the continuous rigid frame increases, the concrete portal pier cannot meet the force and deformation requirements due to the large load of the continuous rigid frame pier and high deformation requirements. At the same time, because block 0 of the continuous rigid frame is a concrete structure, temporary supports need to be erected during construction, occupying the existing road under the bridge, which greatly interferes with th...

AI Technical Summary

Problems solved by technology

At the same time, because block 0 of the continuous rigid frame is a concrete structure, temporary supports need to be erected during construction, occupying the existing road under the bridge, which greatly interferes with the existing road. To solve this problem, existing large-span Structural spanning means placing bridge piers outside the road and reserving construction space for block 0, but this will increase bridge cost and construction difficulty

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