A hollow variable cross-section unidirectional shear model box

Abstract

The invention provides a hollow variable cross section unidirectional shearing model case. The shearing model case comprises multiple quality and stiffness coordination periodic structures which are sequentially laminated from up to down, wherein the horizontal profile shape of the quality and stiffness coordination periodic structures is in the rectangular shape, the vertical profile shape of thequality and stiffness coordination periodic structures is in the big end down shape, the vertical profile is hollow, the integral vertical profile of the model case is a gradual changing structure, the quality and stiffness coordination periodic structures are mutually connected through employing a rolling structure and a sliding anti-sway structure, and an inner wall of the shearing model case is provided with an energy dissipating structure. The shearing model case can be applied to a unidirectional vibration table, is suitable for the constant-gravity vibration table test and the hyper-gravity vibration table test and provides confined boundary conditions for test soil, and specific model dimensions and parameters are determined according to corresponding test requirements. The shearing model case is especially suitable for the hyper-gravity unidirectional vibration table test and is particularly suitable for the hyper-gravity vibration table test of which the centrifugal acceleration multiplier is quite large (N is not smaller than 100) and the simulation scale is required to reach 300m.

Description

technical field [0001] The invention relates to the field of civil engineering, in particular to a hollow variable-section unidirectional shear model box. Background technique [0002] In the field of civil engineering, people usually use observation and prediction methods to understand the behavior of civil engineering objects, judge its service performance and safety, and make corresponding countermeasures. Observation is mainly prototype observation, which directly obtains the information of the working properties of the engineering structure by embedding measuring elements in the completed engineering structure. This kind of research is an after-the-fact research and cannot guide the design of the engineering structure in advance. Prediction is divided into two types, one means is numerical analysis, and the other means is physical modeling (physical modeling) technology, which can reasonably set and Control the boundary conditions of the model, simulate the imaginary d...

AI Technical Summary

Problems solved by technology

[0021] Aiming at the deficiencies of the prior art, the technical problem to be solved by the present invention is to provide a hollow variable cross-section unidirectional shear model box, which effectively solves the problem of the unidirectional shear model box and soil Coordinated motion problem of , super-large one-way model box mass and lateral deformation control problem under high hypergravity field

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