INFLUENCE OF SOIL-CONDITIONS ON THE SEISMIC BEHAVIOR OF 2 CABLE-STAYED BRIDGES

Citation
M. Elassaly et al., INFLUENCE OF SOIL-CONDITIONS ON THE SEISMIC BEHAVIOR OF 2 CABLE-STAYED BRIDGES, Canadian journal of civil engineering, 22(5), 1995, pp. 1021-1040
Citations number
27
Categorie Soggetti
Engineering, Civil
ISSN journal
03151468
Volume
22
Issue
5
Year of publication
1995
Pages
1021 - 1040
Database
ISI
SICI code
0315-1468(1995)22:5<1021:IOSOTS>2.0.ZU;2-#
Abstract
The results of a case study of the internal forces caused by earthquak e in two examples of cable-stayed bridges are presented. A comparison is made between the behaviour of a model in which the structure is ide alized without the foundation system and a model in which both the str ucture and the supporting foundation are idealized. The effects of var ying the soil conditions on the seismic response are assessed. Also, t he effects of out-of-phase support movements, caused by the lapse of t ime required for the seismic waves to travel from one support to the o ther, are considered. It is concluded that the effects of these parame ters are significant and should not be ignored in the seismic analysis of cable-stayed bridges.