Bearing force-free anti-knock steel support system

Abstract

The invention discloses a bearing power free earthquake proof steel support system, which is formed by superposition of a plurality of splayed racking prop units comprising steel columns, steel beams, steel racking props, steel beam brackets, bolts, steel shims, support brackets and support joints, wherein, the bottoms of two steel racking props are connected with junctions of lower ends of two steel columns and the steel beams via the support joints; upper ends of two steel racking props are provided with the support brackets and are connected with sides of the steel beam brackets welded under the steel beams through the bolts; bolt holes on the steel beam brackets are elliptical holes with the vertical direction as prolate axes; two ends of the steel beams are connected with upper ends of the steel columns via the support joints; and the steel shims are arranged between the support brackets and the steel column brackets. In the invention, a hundred percent bearing power and rigidity of the steel racking props are used to resist the effect of horizontal earthquake without influencing the progress of engineering construction, and the materials can be obtained from local resources. The bearing power free earthquake proof steel support system has the characteristics of good performance of earthquake proof, high ductility, full energy consumption hysteresitic loop and so on, and is an excellent earthquake proof energy consumption component.

Description

technical field [0001] The invention relates to the technical field of building structure engineering, in particular to a load-bearing-free anti-seismic steel support system. Background technique [0002] Steel diagonal braces are traditional steel structural members that enhance the lateral stiffness and lateral bearing capacity of single-story, multi-layer and high-rise steel structures. Steel diagonal braces are arranged in steel frame structures, which fundamentally changes the mechanism of lateral force Change: from steel frame beams and columns resisting lateral force, to a truss in which steel supports are used as diagonal web members, beams are used as horizontal web members, and columns are used as left and right chord members. moment, the horizontal component of the tension force of the diagonal bar resists the shear force of the lateral force. Because after the steel diagonal support is installed, the structure becomes an axial force and lateral force resistance ...

AI Technical Summary

Problems solved by technology

[0006] But in this way, it has brought great problems to the construction: (1) the construction period of the building has been extended

This further prolongs the construction period

(3) Since the floor slab has been poured at this time, workers are forced to construct without a tower crane, and it is very inconvenient to shift heavy components

For the above reasons, several kinds of lateral force-resistant members listed in the appendix of "Technical Regulations for Steel Structures of High-Rise Buildings" (JGJ98-99) are almost not used in China.

The application of individual projects has also brought great controversy

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