The control method of the condition control device for the space lateral restraint loading of the test member

Abstract

A control method of a condition control device for space lateral restraint loading of a test member, wherein the condition control device includes a loading device and a restraint device; there is at least one set of loading devices, which are arranged on one longitudinal side of the test member; each loading device is connected to The positions of the nodes of the test member are set correspondingly; there is a group of restraint devices, which are set on the lateral side of the test member to restrain the lateral displacement of the nodes; at each node of the test member, on the opposite side of the corresponding restraint device, A first displacement measuring device is arranged; on the opposite side of each group of loading devices on the test member, a group of second displacement measuring devices are arranged at intervals along the transverse direction; the second displacement measuring device is used to measure the actual position of the corresponding node on the test member. Displacement in the main loading direction. The invention solves the technical problems that it is difficult to accurately reproduce the boundary conditions of component constraints in the traditional test, the error of the loading system is not considered in the test, and the accuracy and reliability of the test result are low.

Description

technical field [0001] The invention relates to the field of experimental mechanics, and specifically relates to a control method for a condition control device when a civil engineering structure test component is loaded with space lateral constraints. Background technique [0002] Due to the huge size of building structures, it is difficult to carry out full-scale structural tests due to the constraints of economy and test environment. Generally, the key parts of the structure or the parts with complex and concentrated forces are selected for research. In this way, selecting components in the structure for mechanical performance research inevitably needs to restore the real force state of the component boundary, that is, the reproduction of component boundary conditions. [0003] At present, only the sensitive degrees of freedom among component boundary degrees of freedom are usually considered in the process of reproducing boundary conditions, that is, some sensitive rotat...

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Problems solved by technology

[0004] The present invention proposes a control method for the condition control device of the space lateral constraint loading of the test component, to solve the problem that the boundary condition of the component constraint in the traditional test is difficult to accurately reproduce, the error of the loading system is not considered in the test, and the accuracy and reliability of the test result Low reliability technical issues

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