A study of elasto-plastic dynamic response analysis of a long-span hangar subjected to multi-dimensional inputs of rare major earthquake

作者：Zhao Jun^*; Xu Xiao Yan; Zhu Dan; Chen Sheng Bing

来源：Journal of Beijing University of Technology, 2011, 37(7): 978-985.

• Direct integration method
• Dynamic response analysis
• Earthquake input
• Elasto-plastic
• Elasto-plastic analysis
• Internal forces
• Lateral displacements
• Long span
• Multi-dimensional earthquake
• Plastic damage
• Plastic hinges
• Roof structures
• Seismic fortification intensity
• Seismic input
• Time history analysis

Elasto-plastic response time-history analyses of a long-span hangar based on site-class IV were performed under 3 seismic inputs of rare major earthquake for the seismic fortification intensity of 7, using direct integration method. Dynamic responses of the structure subjected to one-dimensional and three-dimensional earthquake inputs were compared. The results show that, with three multi-dimensional earthquake inputs, more plastic hinges of its supporting columns appeared, and for some of them, the plastic damage got worse; The maximum lateral displacements of the structure and the maximum internal forces of its columns are increased slightly; whereas, the roof structure were influenced more obviously, the number of hinges and internal forces of roof members got significantly increased.

• 出版日期2011
• 单位北京大学