Multifunctional bracket capable of transferring horizontal and multi-point local vertical load and implementation method

Abstract

The invention provides a multifunctional bracket capable of transferring horizontal and multi-point local vertical load. The multifunctional bracket mainly comprises a distribution beam capable of realizing multi-point local independent transfer of vertical load, detachable upright columns, a template beam and a bracket base by detachable assembly, wherein the distribution beam capable of realizing multi-point local independent transfer of vertical load is located between tops of the two upright columns; the two upright columns are mounted on the bracket base; the template beam is located between the two upright columns, arranged on the bracket base and connected with the bracket base; the bracket base is fixed on the ground; the distribution beam capable of realizing multi-point local independent transfer of vertical load, the detachable upright columns, the bracket base and the template beam are located in the same plane. The multifunctional bracket can perform various experiments such as vertical loading, horizontal reciprocating loading and multi-point local independent vertical loading, by means of the detachable upright columns, loading and constraint fixing of an experimental wall can be realized step by step, damage to a sample by a moving sample is reduced, and damage form of the sample can be kept effectively.

Description

technical field [0001] The invention relates to a multifunctional support capable of transmitting horizontal and multi-point local vertical loads and an implementation method thereof, belonging to the technical field of civil engineering. Background technique [0002] Compared with the traditional reinforced concrete structure, the steel structure has the characteristics of green environmental protection, good seismic performance, fast construction speed, and recyclable materials. Cold-formed steel, also known as cold-formed thin-walled steel, is formed by cold-working steel sheets, steel strips, steel plates or flat steel bars, and the common thickness is 0-2mm. Cold-formed steel has a variety of cross-sectional forms, and the common ones are C-shaped, U-shaped and tubular. Compared with traditional hot-rolled steel, cold-formed steel can economically obtain a more reasonable cross-sectional shape, and then obtain a satisfactory strength-to-weight ratio. Therefore, in stee...

AI Technical Summary

Problems solved by technology

In many cases, the structural form of the inner column of the light steel keel composite shear wall and the wood structure wall is not exactly the same, so the stress of each column in the actual project is also different. If the force is calculated only according to the stiffness of the column itself Distribution, it is easy to cause the situation that the force of the experimental wall does not match the actual project

Moreover, the structure of the existing single distribution beam is usually I-beam or box-shaped, and the force transmission can only realize uniform or multi-point uniform loading in the length direction of the distribution beam itself. A test piece usually distributes force according to its own stiffness, which will cause the situation that the experimental loading does not match the force of the components in the actual engineering structure.

Existing conventional distribution beams are unable to load components at different positions independently, and the stressed components in actual engineering are not truly uniform in many cases, so such components have no effect on the distribution during the loading test. The requirement of the beam changes from uniform load transfer to non-uniform transfer

[0006] In the existing horizontal loading test, the load-bearing wall is usually loaded horizontally through a horizontal actuator. The wall specimen is usually in a damaged or destroyed state after being loaded. The existing loading and fixing device cannot maintain its load after the test. Under the premise that the state remains unchanged, it is fixed and moved, and further experiments are carried out

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