建筑结构学报2012,Vol.33Issue(5):31-37,7.
气撑式张弦结构静力试验研究及有限元分析
Static experimental research and finite element analysis of Tensairity
摘要
Abstract
Based on the mechanical behavior of the Tensairity, a spindle Tensairity structure model of 2.5m span was designed and manufactured. Under two concentrated forces loading on the mid-span of the model, the deflection and the laws of internal force distribution of the model were investigated, and the influence of the internal air pressure on the static performance of the structure was studied. Through the analysis of the limit states for the structure, the fracture morphology and the failure mechanism were studied. Second, the refined spindle Tensairity finite element model was established by ANSYS. From initial state to inflated state and loaded state of the structure, the whole course numerical simulation was carried out, and the responses of the structure were compared with the results of the experiment. The results show that the results from numerical simulation and the experiment agree well. The displacements and the internal forces obtained from the two methods coincide basically. The test model reaches the limit state at the time of the concentrated force is added to 1.98 kN, and the corresponding failure mode is the local buckling damage of the upper chord member and the folding of the membrane at the end of the airbag关键词
气撑式张弦结构/静力试验/有限元分析/受力性能Key words
air supported string structure/static test/finite element analysis/mechinical behavior分类
建筑与水利引用本文复制引用
曹正罡,范峰,严佳川,张雄迪,陈肖达..气撑式张弦结构静力试验研究及有限元分析[J].建筑结构学报,2012,33(5):31-37,7.基金项目
哈尔滨工业大学科研创新基金项目(HIT.NSRIF.2009093),黑龙江省自然科学基金项目(QC2010109). ()