Research Experience for Undergraduates (REU), NHERI 2019: Modeling and Seismic Response of a Steel-framed Composite Diaphragm Structure

In my NHERI REU experience, I participated in a study that produced experimental data on the behavior of steel collector beams under seismic loads. The experimental specimen consisted of a half-scale steel-framed structure with a composite steel-concrete diaphragm. The specimen was tested using UC San Diego's Large High Performance Outdoor Shake Table. Specifically, I developed and calibrated a computer model of the test specimen using the structural analysis software PISA3D. The model reproduced input parameters related to the seismic response prediction of the test specimen within 5% of experimental values.

在我参与美国国家灾害工程研究基础设施（National Hazards Engineering Research Infrastructure，NHERI）本科生研究经历计划（Research Experiences for Undergraduates，REU）期间，我加入了一项旨在生成地震荷载作用下钢集梁（steel collector beams）受力性能试验数据的研究。试验试件为半缩尺钢框架结构，搭配钢-混凝土组合隔板（composite steel-concrete diaphragm），并在美国加利福尼亚大学圣迭戈分校（University of California, San Diego，UC San Diego）的大型高性能室外振动台（Large High Performance Outdoor Shake Table）上完成了测试。具体而言，我借助结构分析软件PISA3D开发并校准了该试验试件的计算机数值模型，该模型对试验试件地震响应预测相关输入参数的复现结果与试验实测值的偏差均控制在5%以内。