سال انتشار: ۱۳۹۰

محل انتشار: اولین کنفرانس بین المللی ساخت و ساز شهری در مجاورت گسلهای فعال

تعداد صفحات: ۹

نویسنده(ها):

younes komachi – department of civil eng, pardis branch islamic azad university pardis iran
mohammadreza tabeshpour – sabzevar tarbiat moallem university

چکیده:

Earthquake records in sites within distance of less than 20 km from a ruptured fault are significantly influenced by the rupture mechanism the direction of rupture propagation relative to the site and possible permanentground displacements resulting from the fault slip and have different specifications such as high frequency content directivity and fling step . directivity causes the internse pulse of the record leading to sever damages. steel jacket platforms are the special structures with long natural period . this period is in the range of pulse period of near -fault earthquakes. this paper presents the effects of near-fault earthquakes on the behavior of steel jacket platforms.