Assembled anti-instability test loading device for T-beam and its experimental method

Abstract

The invention discloses an assembled anti-instability test loading device for a T-shaped beam, which includes a loading reaction frame fixedly connected to a lower beam; the lower beam is fixed on a ground anchor system; and a pair of The anti-instability bracket, the anti-instability bracket includes a diagonal bar and a vertical bar, and the vertical bars of a pair of anti-instability brackets are arranged oppositely, and the anti-instability bracket is assembled and connected with the long hole of the lower beam; it also includes a clamping mechanism, The clamping mechanism is installed on the vertical bar; the clamping mechanism is in contact with the web of the T-beam test piece; it also includes a pressure applying mechanism, and the pressure applying mechanism is applied to the T-beam test piece. parts to apply test pressure. The invention prevents the test piece from overturning or local instability, and will not affect the test results of the T-shaped beam test piece in the whole process, has a high degree of assembly, is easy to install, and can be reused; it can be applied to different sizes and different types T-beam specimens with wide applicability.

Description

technical field [0001] The invention relates to the technical field of bridge engineering model tests, in particular to an assembled anti-instability test loading device for T-shaped beams and an experimental method thereof. Background technique [0002] In bridge engineering, the main girder, as a main force-bearing component, has served for a long time in a complex and changeable natural environment and directly bears the vehicle load transmitted by the pavement layer. Its reliability, durability and safety are the key points of bridge design. And the focus of attention in the operation stage. As a form of main beam, T-beam has the advantages of good economy, convenient manufacture and transportation, and fast construction. It is often used in small and medium-span bridge projects. It is often necessary to randomly check some T-beams in proportion to measure its position in the vehicle during bridge construction. Bearing capacity and deformation performance under load. At...

AI Technical Summary

Problems solved by technology

[0003] The first technical problem to be solved by the present invention is to provide an assembled anti-instability test loading device for T-shaped beams, so as to solve the problem that T-shaped beams are easy to be unstable when loaded in the existing test technology

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