Structural test loading device for maintaining lateral and axial verticality and test method

Abstract

The invention discloses a structural test loading device for maintaining lateral and axial verticality and a test method. The device comprises a movable base, a lateral actuator, a force sensor, axialactuators, a rigid cover plate, a slide rail, and a counterforce framework; the counterforce framework is composed of a cross beam and a left upright column and a right upright column fixed at both ends of the cross beam; the movable base is placed on the slide rail; one end of the lateral actuator is fixed on the right upright column, and the other end is connected with the movable based; and two ends of the force sensor are respectively hinged to the rigid cover plate and the left upright column, and the two ends of the axial actuators are respectively hinged to the rigid cover plate and the cross beam. The device and the method do not need to correct friction force and a secondary effect of axial loading, can directly measure actual lateral and axial forces applied to a structural member, enable the testing precision to be improved, thereby simulating axial gravity and horizontal force action more realistically, especially, accurately simulating effects of earthquakes on the structural member and dynamic responses thereof.

Description

technical field [0001] The invention relates to a test device for simulating the effect of earthquakes on structures and structural components, in particular to a structure test loading device and test method that maintain lateral and axial verticality. Background technique [0002] The mechanical properties of structures and structural components under earthquake loading is an important research field in civil engineering, and it is often necessary to simulate earthquake action with the help of loading equipment. [0003] The seismic simulation loading of structures and components needs to simulate the lateral force caused by lateral ground motion and the axial force caused by gravity. The application of axial force is mainly achieved through three methods: (1) using a jack to tension the high-strength bolts or tie rods fixed at both ends of the structural member to apply axial force to the structural member model; (2) setting the loading frame and placing the jack on the s...

AI Technical Summary

Problems solved by technology

Although these inventions solve the problem of axial and lateral independent loading and measurement, the

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