Suspension structure for adding prestressed steel inhaul cable in steel truss

Abstract

The invention relates to a suspension structure for adding a prestressed steel inhaul cable in a steel truss. The suspension structure comprises a steel truss, a steel frame beam, a steel column and aprestressed steel inhaul cable, wherein the steel truss comprises an upper chord rod, an inclined rod, a vertical rod and a lower chord rod; the vertical rod penetrates through the upper chord rod and the lower chord rod and connects the upper chord rod and the lower chord rod together; the lower end of the vertical rod is vertically aligned and in through connection with the steel column in thelower hanging floor; the inclined rod is obliquely connected between the upper chord rod and the lower chord rod; the vertical rod at the mid-span position of the steel truss and steel column pass through the prestressed steel inhaul cable in an inner full-height mode, the upper and lower ends of the prestressed steel inhaul cable are provided with a tensioning end and an anchoring end respectively, the tensioning end is fixed on the top of the upper chord rod in the steel truss, and the anchoring section is fixed on the bottom of the steel frame beam at the lowest layer in the lower hanging floor. If a member of the steel truss suffers an accident and causes bearing failure, internal force redistribution of all the members in the steel truss can be caused, at the moment, the prestressedsteel inhaul cable can instantly bear tension force, and the whole structure can still work normally.

Description

technical field [0001] The invention relates to a suspension structure in which prestressed steel cables are added to a steel truss, and belongs to the innovative technology in the field of suspension structures. Background technique [0002] Based on the requirements of diversified building functions, in public buildings such as commercial and exhibition buildings with dense population, there are cases where large-span and high-level hollow areas are set inside the tower. Based on the indoor traffic flow and business requirements, building functions need to meet the large space requirements of the bottom floors, and several air corridors will be set up in the hollow area near the upper floors to form a rich and varied three-dimensional space. In general, the air corridor supports the upper floors by setting a number of steel trusses on the initial floor. However, the first floor of the air corridor often also has the functional requirements of the building's large space, a...

AI Technical Summary

Problems solved by technology

Due to the problems of low redundancy and high sensitivity to external forces in the tension members of the suspension structure, once an accident occurs in the members of the steel truss or the steel columns of the lower hanging floors that cause them to lose their bearing capacity, local corridors in the air will appear. Even the overall safety hazard of continuous collapse

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