Aseismatic Reliability Analysis to Long-Span Space Lattice Structures under Mutiple Support Excitation
Sun Jianmei(1,2),Ye Jihong(2),Cheng Wenrang(2)
(Department of Civil Engineering, Southeast University,Key lab of RC & PC Structure, Ministry of Education, Nanjing, China 210096)

Abstract: The aseismatic reliability of long-span space lattice structures with multiple support excitation based on the pseudo-excitation response spect rum method is analyzed and compared with one under simple support excitation, the variation of the reliability index of each element is investigated simulataneo usly. Furthermore the relations of distribution and number of dangerous elements with the span and apparent velocity are deduced. It indecates that the method is applicable to the aseismatic property analysis of compliex structures underm ultiple support excitation, such as long-span space truss, long-span space lattice shells.
Keyword: long-span space lattice structures, simple support excitation, multiple support excitation，the aseismatic reliability.