Axial follow-up space loading device

Abstract

The invention relates to an axial follow-up space loading device. The axial follow-up space loading device comprises a counter-force support, a vertical loader, a structural element, a counter-force pressing plate, a spherical hinge and a buttress, wherein the bottom end surface of the counter-force pressing plate is a concave spherical surface; the spherical hinge is composed of an upper connecting body, a lower connecting body and a middle steel ball, the top end surface of the upper connecting body is a spherical surface which corresponds to the concave spherical surface of the counter-force pressing plate, the lower end surface of the upper connecting body and the upper end surface of the lower connecting body are respectively provided with a groove, and the middle steel ball is arranged between the two grooves; the upper connecting body and the lower connecting body of the spherical hinge are connected through the middle steel ball and rotate relative to each other, and the lower connecting body is fixedly arranged on the buttress; the lower part of the buttress is fixedly connected with the vertical loader, and the vertical loader is fixedly connected with the top end of the structural element on the ground. The axial follow-up space loading device provided by the invention has the advantages of reasonable structure, low cost, reliable and stable installation and convenience in use, and can axially load the structural element in a follow-up space manner under the action of multi-dimensional horizontal load.

Description

technical field [0001] The invention relates to a loading device for a mechanical performance test, in particular to a spatial axial follow-up loading device. Realize accurate simulation of axial load under multi-dimensional horizontal load. Background technique [0002] A series of strong earthquakes in history and today have not only caused heavy casualties and economic losses, but more importantly left unforgettable traumas in people's hearts. my country is an earthquake-prone country and one of the countries that suffered the most severe earthquake disasters. In the 20th century, two strong earthquakes that killed 200,000 people occurred in my country. One was the 1920 Haiyuan earthquake in Ningxia, which killed more than 230,000 people; the other was the Tangshan earthquake in Hebei in 1976, which killed more than 240,000 people. die. In recent years, there have been many earthquakes of magnitude 7 or above, especially the 8.0 magnitude earthquake in Wenchuan in 2008,...

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to overcome the shortcomings of the above-mentioned prior art that are expensive and inconsistent with the actual state of the project, and provide a structure that is reasonable in structure, low in cost, reliable in installation, stable in use, and capable of realizing structural components under multi-dimensional horizontal loads. Axial follower loading device in the lower space

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