000009975 001__ 9975
000009975 005__ 20141205154135.0
000009975 04107 $$aeng
000009975 046__ $$k2008-10-12
000009975 100__ $$aFaridafshin, Farzad
000009975 24500 $$aResponse of Tall Guyed Telecommunication Masts to Seismic Wave Propagation

000009975 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000009975 260__ $$b
000009975 506__ $$arestricted
000009975 520__ $$2eng$$aTall telecommunication masts are slender structures whose lateral resistance is provided by clusters of guy cables anchored to the ground at several support points. The main goal of this study is to demonstrate the importance of considering realistic three-dimensional ground motion with asynchronous input when evaluating the seismic response of these tall multi-support structures. Three existing masts with heights of 213, 313 and 607 m and different guy cable arrangements have been modeled and investigated in detail with three classical historical earthquake records using a commercial finite element program (ADINA). Both synchronous and asynchronous ground shaking were considered. The effect of asynchronism in multiple support excitations was studied by varying the shear wave velocity of the surface traveling wave corresponding to different degrees of soil stiffness. The three towers have shown sensitivity to asynchronous shaking of their supports. More severe response was obtained for softer soil conditions, and the 607 m mast was sensitive even for relatively stiff soils.

000009975 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000009975 653__ $$aasynchronous ground motion, finite element analysis, time-domain nonlinear dynamic analysis, telecommunication masts

000009975 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000009975 720__ $$aFaridafshin, Farzad$$iGhafari Oskoei, S. Ali$$iMcClure, Ghyslaine
000009975 8560_ $$ffischerc@itam.cas.cz
000009975 8564_ $$s305033$$uhttps://invenio.itam.cas.cz/record/9975/files/06-0089.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 06-0089.
000009975 962__ $$r9324
000009975 980__ $$aPAPER