Anti-seismic performance testing equipment and method for anti-seismic support hanger component and inclined strut assembly

Abstract

The invention discloses anti-seismic performance testing equipment and method for an anti-seismic support hanger component and an inclined strut assembly. Each to-be-tested piece is fixed through the testing equipment, and the testing equipment is provided with fixed guide rails and different positioning pieces for fixing the two ends of the to-be-tested piece so that the anti-seismic performance of the to-be-tested pieces with different lengths and different angles is tested. An alternating stress impact is applied to the to-be-tested pieces through fixed guide rails so as to simulate the stress characteristics and deformation characteristics of the to-be-tested pieces in circulating reciprocating motion during an earthquake, and the vibration effect of the to-be-tested pieces is obtained by using a quasi-static method so that the aim of verification in advance is fulfilled, and the anti-seismic mechanical properties of the to-be-tested pieces are more conveniently and quickly tested.

Description

technical field [0001] The present invention relates to the technical field of anti-seismic support and hanger testing, and more specifically, relates to an anti-seismic performance testing device and method for anti-seismic support and hanger components and diagonal brace assemblies. Background technique [0002] In addition to directly threatening the safety of human life and property, the hazards of earthquakes also include secondary disasters caused by earthquakes, such as floods, fires, poisonous gas pollution, etc. For this reason, on August 1, 2015, the country officially implemented the mandatory national standard GB50981- The 2014 "Code for Seismic Design of Building Electromechanical Engineering" ensures that the electromechanical system can work normally after an earthquake to deal with secondary disasters and minimize the impact of earthquake disasters on people. According to Article 8.2.5 of the national standard GB50981-2014 "Code for Seismic Design of Building...

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Problems solved by technology

According to Article 8.2.5 of the national standard GB50981-2014 "Code for Seismic Design of Building Mechanical and Electrical Engineering", during the project implementation process, the seismic connection members, tube bundles, anchors, etc. in the seismic support and hanger need to be checked for strength. The product involves a special structure and is not a standard part. The design value of the bearing capacity of the component cannot be calculated through simple calculations, and can only be tested through experiments.

[0003] There are two existing test methods. One is to use a cyclic loading testing machine to test the bracket assembly (the whole set of brackets). Due to the complexity and diversity of the actual construction environment, the size, form, and type of the brackets are different, and the versatility is low. , the use of the same set of testing equipment and testing methods will easily lead to test results inconsistent with the actual situation, and it is impossible to provide specific seismic performance indicators of the component to the design unit and application customers, making it difficult for customers to carry out scientific and accurate scheme design; the second is The universal loading testing machine is used to test the bracket components (single member). The equipment can only be loaded in one direction, and a single member can only perform one-way tensile or compressive resistance during the test process. However, the effect of the earthquake is cyclical reciprocating motion, and the steel Fatigue will occur in the process of reciprocating motion, resulting in a decrease in the mechanical performance of the material. Therefore, the true seismic performance of the component cannot be obtained by using the unidirectional loading test method.

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