Release Time:2019-03-09  Hits:

Indexed by: Journal Article

Date of Publication: 2012-12-01

Journal: JOURNAL OF EARTHQUAKE AND TSUNAMI

Included Journals: Scopus、SCIE

Volume: 6

Issue: 4

ISSN: 1793-4311

Key Words: Power transmission tower-line system; geometric nonlinearity; multi-component multi-support ground motions; apparent wave velocity

Abstract: The effect of multi-component multi-support excitations on the response of power transmission tower-line system is analyzed in this paper, using three-dimensional finite element time-stepping analysis of a transmission tower-line system based on an actual project. Multi-component multi-support earthquake input waves are generated based on the Code for Design of Seismic of Electrical Installations. Geometric non-linearity was considered in the analysis. An extensive parametric study was conducted to investigate the behavior of the transmission tower-line system under multi-component multi-support seismic excitations. The parameters include single-component multi-support ground motions, multi-component multi-support ground motions, the correlations among the three-component of multi-component multi-support ground motions, the spatial correlation of multi-component multi-support ground motions, the incident angle of multi-component multi-support seismic waves, the ratio of the peak values of the three-component of multi-component multi-support ground motions, and site condition with apparent wave velocity of multi-component multi-support ground motions.