An adjustable device suitable for energy dissipation and shock absorption of string truss structures

Abstract

The invention discloses an adjustable device suitable for energy dissipation and shock absorption of a string truss structure, which includes a plurality of adjustment devices for connecting the string truss and the ground surface, the adjustment device includes an elastic rod body, a lifting member, and the elastic The bottom of the rod body is connected with the top of the lifting member, and the elastic rod body is provided with a contact displacement sensor. The present invention is an adjustable device suitable for energy dissipation and shock absorption of a string truss structure. Through a contact displacement sensor, two end values ​​of the effective force of the elastic rod on the string truss are set, and the lifting member is used to flexibly change the position of the entire device. position and length, so that the force of the elastic rod on the string truss is within the range of two end values, so that the performance of the two-way force of the elastic rod can be fully utilized, and the overall compression load-bearing and wind load resistance of the string truss can be enhanced. Utilization rate of large string truss in strong wind area.

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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