2.5m×2.5m三向六自由度地震模拟振动台系统建设研究

Study on Construction of Three Dimensional Six-DOF Seismic Simulating System

介绍了2.5m×2.5m三向六自由度地震模拟振动台对比国内典型振动台的不同特点。在前期分析与论证工作的基础上,阐述了振动台试验系统的关键组成部分和主要参数的选定、设计原则;通过模态分析和基础动力响应分析,验证了振动台台面及基础设计方案的安全性和合理性;提出了振动台基础预埋件精确定位的方法,可为振动台试验系统建设提供经验和参考依据。

This paper introduces the 3Dsix-DOF seismic shaking table with a size of 2.5m×2.5 m.Comparing the characteristics of typical shaking table in our country,the key point of shaking table simulating system,selection of important parameters,design principle and analysis process are illustrated based on early analysis and discussion.The safety and rationality of table and support design of shaking table are validated by modal analysis and dynamic response analysis of foundation.Finally,the accurate positioning method for pre-buried apparatus in foundation of shaking table is proposed.The research can provide experience and reference for construction of shaking table system.