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首页> 外文期刊>Bulletin of earthquake engineering >Soft real-time hybrid simulation based on a space steel frame
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Soft real-time hybrid simulation based on a space steel frame

机译：基于空间钢框架的软实时混合仿真

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摘要

Soft real-time hybrid simulation (S-RTHS) is a novel seismic test method for structures. It combines pure finite element simulation with laboratory physical component tests, and can lead to a more realistic simulation of real-time effects of seismic action on specimens. Based on the OpenFresco test communication platform and an MTS electro-hydraulic servo loading system, a systematical study on the technological application of S-RTHS is presented in this paper. A single-story, single-span space steel frame was taken as a prototype, a column was taken as an experimental substructure, and the remaining part of the structure was taken as a numerical substructure to be simulated in OpenSEES. S-RTHS with bidirectional loading was performed, and the boundary conditions of the experimental substructure were simulated and analyzed. The results from the pure numerical simulations and S-RTHS were compared along with the responses from these simulations. The command displacement and feedback displacement of the system were discussed to verify the accuracy and stability of the S-RTHS. Finally, a comparison with the slow substructure hybrid simulation test results shows that the S-RTHS can better simulate the dynamic response of the experimental substructure.
机译：软实时混合模拟（S-RTH）是一种用于结构的新型地震试验方法。它将纯的有限元模拟与实验室物理成分测试结合起来，可以导致对标本对地震作用的实时效应更现实的模拟。基于OpenFresco测试通信平台和MTS电动液压伺服装载系统，本文介绍了S-RTH技术应用的系统研究。单层单跨空间钢框架作为原型，将柱子作为实验性亚结构，并将结构的剩余部分作为在开放式中模拟的数值下部结构。进行了双向载荷的S-RTH，并模拟并分析了实验性亚结构的边界条件。比较来自纯数值模拟的结果和S-RTH的结果与这些模拟的反应相比。讨论了系统的命令位移和反馈位移以验证S-RTH的准确性和稳定性。最后，与缓慢副结构混合仿真测试结果的比较表明，S-RTH可以更好地模拟实验亚结构的动态响应。

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