振动台试验模型箱的研究进展

Research Progress on the Model Box for Shaking Table Tests

模型箱的设计与制作是土-结构相互作用体系振动台试验中非常重要的一个方面,对模拟真实土层与结构在地震作用下动力响应结论的准确性发挥着至关重要的作用。文章归纳分析了当前土-结构相互作用振动台模型试验所用各类模型箱的结构形式及优缺点,主要针对模型箱输入效应、边界效应以及地震波输入方式三个方面讨论了不同模型箱设计需要解决的关键问题,论述了模型箱发展至今学者们在前人研究基础上针对不同问题结合自身研究特性所做的改进,最后通过分析模型箱研究现存的问题,对其今后的研究方向提出展望。

The design and fabrication of the model box is a very important aspect in the shaking table test for soilstructure interaction system, and plays a vital role in the accuracy of conclusions drawn from the simulation of the dynamic response of real soil layers and structures under seismic action. This paper summarizes and analyzes the structural forms, advantages and disadvantages of different types of model boxes used in the current shaking table model tests for soil-structure interaction, and discusses the key problems to be addressed in the design of different model boxes from three perspectives: excitation input effect, boundary effect and seismic wave input mode of the model box, as well as the improvements made by scholars so far on the basis of extant researches and in conjunction with characteristics of research projects. The paper finally analyzes the existing problems in model box research and proposes research directions in the future.