Pseudo static test method for reflecting excitation action characteristic

Abstract

The invention discloses a pseudo static test method for reflecting the excitation action characteristic. The pseudo static test method comprises the following steps that a target structural member andtarget excitation are determined, and a test component is manufactured according to the target structural member; a displacement response time history of the target structural member is determined; the displacement amplitude and the number of cycles of the target structural member are obtained through statistic analysis according to the displacement response time history of the target structuralmember; a pseudo static test loading system for reflecting the excitation action characteristic is constructed; and pseudo static test loading is carried out on the test component, and a hysteretic curve of the target structural member is obtained. According to the method, displacement response of a displacement response of the target structural member under the target excitation action is used asthe basis, and the shortcoming of uncertainty of subjectively determining the load control index in a traditional pseudo static test and the shortcoming that a traditional loading path cannot reflectthe target excitation action characteristic are overcome. The suitable pseudo static test method is provided for disclosing the influence mechanism of the target excitation action characteristic on the seismic performance of the target structural member.

Description

technical field [0001] The invention relates to the field of anti-seismic technology of structural engineering, in particular to a quasi-static test method reflecting the characteristics of excitation. Background technique [0002] The types of seismic tests of building structures mainly include shaking table tests, pseudo-dynamic tests and pseudo-static tests. Pseudo-static test is a pseudo-static test in which multiple reciprocating cycles are applied to structural components. It is a process of repeatedly loading and unloading structural components in both positive and negative directions to simulate the force of the structure in reciprocating vibration during an earthquake. Characteristics and deformation characteristics, also known as low cycle repeated loading test. Through the quasi-static test, important information such as strength, stiffness, deformation, and energy consumption of structural components can be effectively obtained, so as to establish restoring forc...

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Problems solved by technology

[0004] In order to solve the above problems, the object of the present invention is to propose a quasi-static test method reflecting the characteristics of the excitation, based on the displacement response of the prototype structure of the research object under the target excitation, the displacement response of the target structural member is obtained, based on The rainflow counting method is used for statistical analysis, and a quasi-static test loading system

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