Self-stress buckling-resistant support for threaded connection and assembly method thereof

Abstract

The present invention is a threaded self-stress buckling-resistant support and its assembly method. The support includes an outer sleeve, a steel support, an upper end assembly and a lower end assembly; the steel support is arranged inside the outer sleeve, and the two ends of the steel support are respectively along The upper end and the lower end are fixed in the axial direction to fasten the externally threaded steel column; the upper end assembly and the lower end assembly include a fastening end, a connecting end and a double-piece ring that are sequentially fixed and connected as one; internal threads are arranged inside the fastening end, respectively Corresponding connection with the upper and lower ends of the fastened externally threaded steel columns; the cross section of the outer sleeve is circular, and the upper end is provided with an externally threaded interface, and a sleeve cover that is threadedly matched with the externally threaded interface; the lower end of the steel support is tightened through the lower end. The solid external threaded steel column is connected and fixed with the fastening end in the lower end assembly, and the upper end of the steel support is connected with the fastening end in the upper end assembly through the upper end fastening threaded steel column passing through the sleeve cover; the upper end of the steel support is connected by The sleeve cover compresses and deforms the steel support; the outer sleeve is filled with concrete.

Description

technical field [0001] The invention relates to the technical field of structural engineering, in particular to a screw-connected self-stress buckling-resistant support and an assembly method thereof. Background technique [0002] Bracing-frame structure systems have better ductility and seismic performance than pure frame structures. During the earthquake, the supporting member can consume energy before the main structure. As the first line of defense against earthquakes, it can dissipate part of the earthquake energy first, thereby reducing the degree of earthquake damage of the main structure, which meets the seismic resistance of multiple lines of defense in the code. idea. [0003] Ordinary steel supports are prone to instability under pressure, and their Euler critical force is far lower than the yield bearing capacity, so larger member sections are required to meet the stability requirements, and large section supports will increase the overall stiffness of the struc...

AI Technical Summary

Problems solved by technology

[0005] Since the buckling restraint support adopts the solution of separating the core material and the sleeve, only the core material bears the force during the actual stress process, and the sleeve only provides restraint and does not bear any axial force, thus causing a certain degree of Section waste

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