Adjustable device suitable for energy dissipation and shock absorption of string truss structure

Abstract

The invention discloses an adjustable device suitable for energy dissipation and shock absorption of a string truss structure. The adjustable device comprises a plurality of adjusting devices used forconnecting a string truss with the ground surface; each adjusting device comprises an elastic rod body and a lifting component; the bottoms of the elastic rod bodies are connected with the tops of the lifting components; and a contact type displacement sensor is arranged on each elastic rod body. According to the adjustable device suitable for energy dissipation and shock absorption of the stringtruss structure, two end values of effective acting force of the elastic rod bodies on the string truss are set through the contact type displacement sensors, and the position and the length of the whole device are flexibly changed in cooperation with the lifting components, so the acting force of the elastic rod bodies on the string truss is within the interval between the two end values; and therefore, the bidirectional stress performance of the elastic rod bodies can be fully utilized, the overall pressure bearing and wind load resisting capacity of the string truss are enhanced, and the utilization rate of the string truss in a strong wind area is increased.

Description

technical field [0001] The invention relates to the technical field of steel structures, in particular to an adjustable device suitable for energy dissipation and shock absorption of string-string truss structures. Background technique [0002] String truss structure is a type of large-span spatial structure formed by connecting the upper string three-dimensional truss and the lower string high-strength cables through struts. It is developed from the string beam structure. In recent years, it has been successfully applied in many important long-span buildings. However, in areas with strong winds and frequent earthquakes, it is easy to cause a large number of lower cables to withdraw from work under the action of dynamic catastrophic loads, and the structural deformation will increase. The overall instability of the tension truss structure will lead to the collapse of the main structure. [0003] Therefore, it is possible to increase the overall wind load resistance and load...

AI Technical Summary

Problems solved by technology

However, in areas with strong winds and frequent earthquakes, it is easy to cause a large number of lower cables to withdraw from work under the action of dynamic catastrophic loads, and the structural deformation will increase. The overall instability of the tension truss structure will lead to the collapse of the main structure

[0003] Therefore, it is possible to increase the overall wind load resistance and load-bearing capacity of the string truss by arranging a bidirectionally stressed elastic rod at the bottom of the string truss. As a result, the length of the elastic rod is difficult to determine, and the elastic rod itself has a certain force on the string truss. If the force is too large, it is easy to have a certain impact on the structure of the string truss itself. If it is too small, it will affect the string truss. The resistance increase effect is not obvious

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