Shaped-steel concrete frame-steel supporting structure type steel column preconstraint node

Abstract

A steel-concrete frame-steel support structure-shaped steel column top restraint joint, which is composed of beam medium steel, column medium steel, column main reinforcement, steel support, column concrete, and beam medium concrete are handed over and poured into one, and the column medium steel and column main reinforcement A constrained anchor steel plate is welded on the top of the constrained anchor plate, with a vibrating hole and a welding line hole in the middle of the constrained anchor plate, and a plug weld hole is opened at the edge of the constrained anchor plate, the main reinforcement of the column and the constrained anchor plate are welded at the plug weld, and the column The medium-sized steel and the restraint anchor steel plate are welded at the welding line hole. It solves the problem of reliable and safe connection between the support of the long-span steel roof and the top of the steel column, and improves the integrity of the joints at the top of the steel column. On the one hand, it saves the amount of anchoring steel bars, and on the other hand, it facilitates construction and improves construction efficiency. Save labor and time.

Description

(1) Technical field [0001] The invention relates to an anti-seismic node structure in a steel-concrete composite structure. (2) Background technology [0002] The National Gymnasium is one of the three main venues for the Beijing 2008 Olympic Games. During the Olympic Games, gymnastics competitions and handball finals will be held mainly, and wheelchair basketball competitions will be held during the Paralympic Games. Its building consists of a competition hall and a warm-up hall. The competition hall can accommodate about 19,000 spectators, with a total construction area of ​​80,890m 2 , one basement and four floors above ground. The longitudinal length of the roof plane projection is 195.5m, and the horizontal width is 114m. In this complex spatial structure system, the design of the connection node between the long-span structure and the lower main structure and its adjacent area is extremely critical and important. This node is an important part that supports the long-...

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Problems solved by technology

[0005] The purpose of the present invention is to design a steel concrete frame-steel support structure steel column top constraint node, to solve the problem of reliable and safe connection between the support of the large-span space roof structure and the steel column top; Concentrated steel bars, too many interspersed steel bars, tense space conflicts between steel bars and section steel, and difficult anchoring of steel bars

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