A device and method for preventing out-of-plane instability with force measuring function

Abstract

The invention discloses a device and a method having a force measuring function and used for preventing the out-of-plane unstability, and belongs to the field of loading tests of structural engineering technologies. The device comprises six parts, namely a plane sample, flexible steel wire ropes, constraint connection modules, force measuring modules, consolidation walls and rope and wall connecting modules; a test piece is constrained by a plurality of flexible steel wire ropes, so that the test piece is performed in a static experiment according to an expected resolution, and errors caused by lateral unstability is reduced. The device disclosed by the invention has the advantages of light structure, simplicity and convenience in operation, low construction cost, recycling and no influence on observation of a test process; the device and the method accord with the requirement of a green idea; experiments show that the problem of the out-of-plane unstability which universally exists in current tests can be solved by the device and the method, and the device and the method are recommended to be popularized and used.

Description

technical field [0001] The invention relates to a device and method for preventing out-of-plane instability with the function of force measurement, and belongs to the field of loading test of structural engineering technology. Background technique [0002] In the static test, the loading of the test sample by the loading equipment is often controlled in a certain plane along a certain linear direction or one-way reciprocating loading. Due to the limitation of the technical level and the existing specimen processing environment, the test specimen It is inevitable that there will be slight differences in size in the pre-preparation of the static test, which will cause a horizontal inclination in the process of installing the specimen in the static test, causing the specimen to be unstable out of the plane and affecting the final effect of the test. The experimental error is particularly serious. Aiming at this phenomenon, the currently widely used countermeasures are to apply...

AI Technical Summary

Problems solved by technology

[0002] In the static test, the loading of the test sample by the loading equipment is often controlled in a certain plane along a certain linear direction or one-way reciprocating loading. Due to the limitation of the technical level and the existing specimen processing environment, the test specimen It is inevitable that there will be slight differences in size in the pre-preparation of the static test, which will cause a horizontal inclination in the process of installing the specimen in the static test, causing the specimen to be unstable out of the plane and affecting the final effect of the test. The experimental error is particularly serious

Aiming at this phenomenon, the currently widely used countermeasures are to apply devices similar to steel beams on both sides of the loaded specimen (parallel to the loading direction) to reduce the lateral inclination of the specimen in a blocking way. To a certain extent, the test error caused by lateral instability was reduced, but this measure also increased the friction between the test piece and the device, and it was impossible to analyze the impact of the blocking measures. At the same time, the device was in the static test due to its large size and easy blocking The test specimens in the middle are unfavorable for observing the test phenomenon

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