A suspension structure with prestressed steel cables added to a steel truss

Abstract

The invention relates to a suspension structure in which prestressed steel cables are added to steel trusses, including steel trusses, steel frame beams, steel columns, and prestressed steel cables. and the lower chord, the vertical rod runs through the upper chord and the lower chord, and connects the upper chord and the lower chord together, and the lower end of the vertical rod is aligned and connected with the steel column in the lower hanging floor up and down, and the oblique rod is obliquely connected between the upper chord and the lower chord Between the lower chords, the vertical bar at the mid-span position of the steel truss and the inner height of the steel column pass through the prestressed steel cables. The upper and lower ends of the prestressed steel cables are respectively provided with tension ends and anchor ends. It is fixed at the top of the upper chord in the steel truss, and the anchor section is fixed at the bottom of the steel frame beam at the bottom of the hanging floor. If a member in the steel truss suffers from an accident and causes load-bearing failure, it will cause redistribution of internal forces in all members in the steel truss. At this time, the prestressed steel cable will bear the tension instantaneously to ensure that the overall 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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