Bidirectional composite force loading test device for masonry test piece

Abstract

The invention relates to a bidirectional composite stress loading test device for a test piece of a brick body and belongs to the field of civil engineering. The device mainly comprises an adjustable reaction frame, a pressurization screw stem and a mouth-shaped frame; the steel reaction frame which can adjust distance and the pressurization screw stem with a force transducer are utilized to realize the loading of transverse pressure or tensile force of the test piece of the brick body; and the largest loading value of the pressurization screw stem can reach 150 kN. The steel reaction frame consists of a steel plate and a screw stem; and the relative distance of the steel plate of the reaction frame can be flexibly adjusted so as to meet the requirement of the test pieces with different specifications. The vertical direction of the test piece is matched with the prior hydraulic jack to realize a full-process bidirectional loading test on the test piece of the brick body. The loading device has a simple structure, convenient disassembly and assembly and small occupied area, can be repeatedly used, can move, is convenient to load and control, has accurate and reliable tested data and can fully meet the loading requirement of the bidirectional composite stress loading test on the test piece of the brick body.

Description

technical field [0001] The invention belongs to the field of civil engineering, and relates to a loading test device, in particular to a two-way composite force loading test device for masonry specimens, which provides a simple and practical loading test device for studying the two-way force performance of masonry or other materials. tool. Background technique [0002] In the building structure, there are very few components that are only subjected to one kind of load. Under the composite stress state, the materials in the components are in a complex stress state. Therefore, it is necessary to determine the mechanical properties and damage of components and materials under the composite stress. Form is one of the key contents of structural engineering research. As an ancient and new material, masonry is widely used in various structural fields. With the continuous emergence of various new masonry materials, the research on the properties of masonry materials under composit...

AI Technical Summary

Problems solved by technology

At present, most of the two-way composite force loading test devices for masonry use two-way jacks for loading. Therefore, the jack in one direction needs to be adjusted at any time to ensure the constant lateral loading value. The operation is complicated and it is easy to cause danger when the specimen is damaged.

Since the jack needs to be fixed in two directions, the loading device occupies a large area and the installation of the instrument is inconvenient, which will inevitably reduce the test efficiency

Usually this type of loading device can no longer be used for other size specimens, the utilization rate is low

At the same time, due to the difficulty of carrying out the tensile-shear composite force test of masonry specimens, there are few corresponding loading devices at present, and it is often necessary to use devices with complex designs for testing.

Images