Analysis of dynamic behavior for truss cable structures

作者：Zhang Wen Fu^*; Liu Ying Chun; Ji Jing; Teng Zhen Chao

来源：Steel and Composite Structures, 2014, 16(2): 117-133.

DOI：10.12989/scs.2014.16.2.117

• truss cable structures
• energy variational method
• natural vibration
• time-history analysis
• finite element analysis

Natural vibration of truss cable structures is analyzed based upon the general structural analysis software ANSYS, energy variational method and Rayleigh method, the calculated results of three methods are compared, from which the characteristics of free-vibration are obtained. Moreover, vertical seismic response analysis of truss cable structures is carried out via time-history method. Introducing three natural earthquake waves calculated the results including time-history curve of vertical maximal displacement, time-history curve of maximal internal force. Variation curve of maximal displacement of node along span, and variation curve of maximal internal force of member along span are presented. The results show the formulas of frequencies for truss cable structures obtained by energy variational method are of high accuracy. Furthermore, the maximal displacement and the maximal internal force occur near the 1/5 span point. These provide convenient and simple design method for practical engineering.

• 出版日期2014-2
• 单位东北石油大学