Pillar foundation for crossing for contact screen of hanging basket

Abstract

The invention discloses a pillar foundation for the crossing for a contact screen of a hanging basket and a construction method for the same, and the construction method is characterized in that lower sleeves are welded on the bottom of the pre-embedded steel plate of the pillar foundation for the contact screen, bottom plates are welded on the bottoms of the lower sleeves to close the bottoms of the lower sleeves, the bottoms of the adjacent lower sleeves are communicated by transversal tubes, and grouting tubes are welded on the upper parts of the lower sleeves; upper sleeves are welded on the upper part of the pre-embedded steel plate; the upper sleeves are vertically communicated with the lower sleeves; and an anchor bolt is arranged in a sleeve which is formed by connecting the upper sleeves with the lower sleeves, and capable of moving up and down in the sleeve. According to the invention, the effect that the hanging basket smoothly passes through a beam section with the contact screen can be realized; the construction method is simple, free from damages on a beam body structure and safety risk, low in cost, as well as capable of greatly reducing the passing-through and forward movement time of the hanging basket, and ensuring project quality and construction period.

Description

technical field [0001] The invention relates to a hanging basket over catenary pillar foundation and a construction method thereof. Background technique [0002] In the prior art, the construction method for the catenary beam section is to lift the hanging basket above the height of the catenary anchor bolt, or reserve the foundation position of the catenary before concrete pouring, and install the catenary after the hanging basket moves forward. Pillar foundation, concrete pouring. [0003] The 2×108m single T rigid structure of the 11th main bridge in front of the station of the Daxi Railway Passenger Dedicated Line in my country is constructed using hanging basket cantilever cantilever pouring construction. The catenary pillar foundation is located within the web range, which conflicts with the position of the hanging basket, and the hanging basket is in contact with it. The position of the net cannot be passed. If the hanging basket is lifted, the construction is difficu...

AI Technical Summary

Problems solved by technology

[0003] The 2×108m single T rigid structure of the 11th main bridge in front of the station of the Daxi Railway Passenger Dedicated Line in my country is constructed using hanging basket cantilever cantilever pouring construction. The catenary pillar foundation is located within the web range, which conflicts with the position of the hanging basket, and the hanging basket is in contact with it. The position of the net cannot be passed. If the hanging basket is lifted, the construction is difficult and the stability of the hanging basket is insufficient. If the hole is reserved, the stubble surface treatment at the reserved hole is complicated, which affects the overall performance of the reinforced concrete structure

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