OpenFresco平台混合试验研究与应用

Research and application of OpenFresco platform in hybrid simulation

混合试验方法是再现大型结构地震响应的最有效方法之一。本文首先回顾了混合试验基本概念,总结了基于OpenFresco平台混合试验方法相关研究与应用。根据近年来国内外学者相关研究,系统阐述了OpenFresco试验平台四个关键问题:在数值子结构中设置合理的求解参数,在中介平台中设置合理的试验参数,根据试验需要合理布置加载系统以及消除混合试验误差。最后,本文简要总结混合试验技术特点,说明混合试验可能存在的应用范围。根据目前混合试验存在的若干技术瓶颈,认为子结构划分技术、实时混合试验方法、分布式混合试验方法、振动台加载系统混合试验方法等方面需要深入研究。

Hybrid simulation is one of the most effective test methods to reproduce seismic responses of complex structures.This paper reviews the basic concepts of hybrid simulation and summarizes the research and application of hybrid simulation based on OpenFresco platform.According to recent research results,four important issues of OpenFresco platform are discussed in detail: setting reasonable analysis parameters in OpenSees platform,setting reasonable test parameters in OpenFresco platform,dividing substructure according to the test needs,arranging the loading system reasonably and eliminating the error of hybrid simulation.In the end the technical characteristics of hybrid simulation is summarized briefly.The possible application range of hybrid simulation based on OpenFresco platform is illustrated.According to the technical limits existed in the current hybrid simulation status,it is necessary to study the sub-structure division technology,the real-time hybrid simulation method,the distributed hybrid simulation method,and the hybrid simulation based on shaking table further.