Test device for simulating six-direction load action on raft of raft base

Abstract

The invention relates to a test device for simulating six-direction load action on a raft of a raft base. The test device comprises a model groove, a raft base, support columns, a horizontal guide rail, a transverse beam, vertical guide rails, a four-edge platform loading framework, a vertical loading module and a horizontal loading module, wherein a soil body is arranged in the model groove; the raft base is buried in the soil body of the model groove; the support columns are arranged in the model groove; the horizontal guide rail is arranged on the support columns; the transverse beam is arranged on the horizontal guide rail; the vertical guide rail is connected with the transverse beam; the four-edge platform framework is connected to the vertical guide rail; the vertical loading module is connected to the four-edge platform framework, is connected with the raft base, and is used for applying a vertical load to the raft base; and the horizontal loading module is connected to the four-edge platform loading framework, is connected with the raft base, and is used for applying a horizontal load to the raft base. Compared with the prior art, the test device has the advantages of capability of simulation the working condition of combined loading of a plurality of loads, high simulation accuracy, and the like.

Description

technical field [0001] The invention relates to a model loading test device, in particular to a test device for simulating a raft foundation raft subjected to loads in six directions. Background technique [0002] In recent decades, the world economy has grown rapidly, and technological innovation has continuously promoted social development, especially in the field of civil engineering. At present, a large number of high-rise buildings are being built continuously all over the world, and they have entered a new development period and stage in terms of building height, building complexity and building function. [0003] Since the reform and opening up, my country's high-rise buildings have also developed rapidly. For the purpose of protecting cultivated land, my country strictly restricts construction land, and the usable construction area is getting smaller and smaller, which promotes the development of high-rise buildings. High-rise buildings are huge in size and have hi...

AI Technical Summary

Problems solved by technology

Therefore, the design of piled raft foundations at this stage faces two new problems: (1) The influence of multi-directional coupling loads on the deformation of raft foundations

In order to make up for the limitations of theoretical analysis, for important projects, it is necessary to conduct analysis in combination with indoor model tests. The key technology is how to simulate the effect of multi-directional coupling loads on the foundation, and no reports on this issue have been found so far.

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