Reinforcement method for key members of space structure

Abstract

The invention provides a space structure key rod piece reinforcing method. According to the space structure key rod piece reinforcing method, firstly, joints (4) at the two ends of a rod piece (1) to be reinforced are each additionally provided with two or four longitudinal stiffening ribs (2); the stiffening ribs (2) are evenly distributed on the circumference of the rod piece (1); one end of each stiffening rib (2) is fixedly connected with the corresponding joint (4); the stiffening ribs (2) are welded to the rod piece (1) in the axial direction along the length of the stiffening ribs (2), and the length of the stiffening ribs (2) is 1 / 20-1 / 10 that of the rod piece (1); then, the outer sides between the stiffening ribs (2) at the two ends of the rod piece (1) are provided with square restraining components, the inner sides of the square restraining components are attached to the circumference of the rod piece (1), the stiffening ribs (2) are located in gaps formed by vertex angles of the square restraining components and the outer circumference of the rod piece (1), and the length of the square restraining components is smaller than that of the longitudinal rod piece (1) to be reinforced. By means of the method, collapse and damage, caused by rod piece instability under strong wind or strong shock, of a large-span space structure can be effectively prevented.

Description

technical field [0001] The invention belongs to the field of civil engineering, and in particular relates to a method for reinforcing key rods of a space structure to prevent the overall instability of the rods from causing the collapse of the space structure. Background technique [0002] The large-span space structure is currently the fastest-growing structure type, and the development status of its core space structure technology is one of the important symbols representing a country's architectural technology level. [0003] If the damage to the space structure caused by unqualified construction quality is ignored, then when the span of the space structure is small, the failure mode of the structure is mainly the strength failure caused by the sudden failure of the rods at the support; The failure is usually due to the instability failure caused by the instability of the key members. Taking the grid structure as an example, its key members generally refer to some upper ...

AI Technical Summary

Problems solved by technology

[0005] 1. Weld steel plate or angle steel directly on the rod, welding residual stress will be generated on the rod, which will have an adverse effect on the structure;

Images