Preliminary investigation of seismic damage to two steel space structures during the 2013 Lushan earthquake

Severe damage to steel space structures is rarely reported when compared to other structural systems damaged during past major earthquakes around the world. Two gymnasiums of steel space structures in downtown Lushan County that were damaged during the 2013 M7.0 Lushan earthquake in China were investigated and the observations are summarized in this paper. Typical damage to these two steel space structures ranges from moderate to severe. Moderate damage includes global buckling and dislocation of bolted connections of truss members, and inelastic elongation of anchor bolts and sliding of pedestal plates of supports. Severe damage includes member fracture caused by local buckling, and fracture failure of anchor bolts and welds. The distribution of structural damage to these two structures is described in detail and future research opportunities are suggested.

土建类专业“三位一体”开放性实验教学实践——基于学科竞赛为载体

为培养高素质应用型人才,将学科竞赛与开放性实验项目相结合,开发出岩土与地下工程多模块、开放式、便捷操作的模型设计与加载的综合性实验教学项目,促进了学生利用已学专业基础知识对模型进行力学计算、结构设计;推动了学生借助有限元数值计算软件对模型进行力学分析与优化,通过模型制作进行加载实验,并根据加载结果进一步优化模型结构,提升学生专业知识能力、创新能力、综合素质能力。