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Comparative response assessment of minimally compliant low-rise conventional and base-isolated steel frames

机译：最低柔度低层常规和基础绝缘钢框架的比较响应评估

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摘要

In this study, the multi-intensity seismic response of code-designed conventional and base-isolated steel frame buildings is evaluated using nonlinear response history analysis. The results of hazard and structural response analysis for three-story braced-frame buildings are presented in this paper. Three-dimensional models for both buildings are created and seismic response is assessed for three scenario earthquakes. The response history analysis results indicate that the design objectives are met and the performance of the isolated building is superior to the conventional building in the design event. For the Maximum Considered Earthquake, isolation leads to reductions in story drifts and floor accelerations relative to the conventional building. However, the extremely high displacement demands of the isolation system could not be accommodated under normal circumstances, and creative approaches should be developed to control displacements in the MCE.
机译：在这项研究中，使用非线性响应历史分析评估了规范设计的常规和基础隔离式钢框架建筑的多强度地震响应。介绍了三层支撑框架结构的危害和结构响应分析结果。创建两个建筑物的三维模型，并针对三种情景地震评估地震响应。响应历史分析结果表明，在设计事件中，达到了设计目标，并且隔离建筑物的性能优于常规建筑物。对于“最大地震”，与传统建筑物相比，隔离可减少楼层漂移和地面加速度。但是，在正常情况下无法满足隔离系统的极高位移要求，因此应开发新颖的方法来控制MCE中的位移。

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