نتایج جستجو برای: accelerograms
تعداد نتایج: 173 فیلتر نتایج به سال:
با توجه به گسترش روز افزون مناطق شهری و افزایش جمعیت و نیز توسعه پروژه های عمرانی احتمال خسارات ناشی از زلزله های بزرگ رو به افزایش است. در این میان، استفاده از تاریخچه های زمانی متناسب با منطقه مورد نظر برای طراحی یا بهسازی لرزه ای سازه ها مورد نیاز است. این در حالی است که در بسیاری از مناطق وجود شتاب نگاشت واقعی برای انجام این اقدامات در دسترس نیست بنابراین تولید شتاب نگاشت مصنوعی بر اساس ویژ...
This paper provides a methodology to quantify the interrelationship between the seismic intensity parameters and the structural damage. First, a computer-supported elaboration of the accelerograms provides several peak, spectral and energy seismic parameters. After that, nonlinear dynamic analyses are carried out to provide the structural response for a set of seismic excitations. Among the sev...
Abstract Ground motion selection is one of the most important phases in derivation fragility curves through non-linear dynamic analyses. In this context, an easy-to-use software, namely S&M—Select & Match, has been adopted for and spectral matching recorded ground motions approaching a target response spectrum broad period range. paper, after brief description key features S&M tool,...
Mexico highway network has more than 14,000 bridges. Most of them are reinforced concrete (RC) structures. The bridges design process incorporates the use an overstrength factor that is not justified and received little attention in published works. Mexican regulations allow using for buildings range 2–3, to reduce spectra as a function selected seismic behavior factor. However, bridges, single...
This paper aims at giving structural designers guidance on how to transform seismic demand a building structure from two-dimensional (2D) three-dimensional (3D) in an expedient manner, taking into account amplification of the torsional actions. is be read conjunction with either #3 or #4. Torsional drift major concern design for countering actions building. Code-based procedures based elastic a...
Reinforced concrete tall building failure, in residual areas, can cause catastrophic disaster if they can’t survive during the destructive earthquakes. Hence, determining damage of these buildings earthquake and detecting probable mechanism formation are necessary for insurance purposes urban areas. This paper aims to determine failure modes moment resisting frames (MRFs) according beam column....
A critical analysis of the large number of papers about the seismic behaviour of asymmetric buildings shows some concordant results: the modal analysis correctly predicts their elastic dynamic response to seismic records, while it overestimates deck rotation in the inelastic range. On this basis, the authors propose to design asymmetric structures by twice repeating the modal analysis: the firs...
on 26 december 2003 at 05:26lt (01:26gmt), a catastrophic earthquake mw 6.6, seismic moment (6 – 9 ×10 nm) struck the city of bam in the kerman province of southeast iran. the intense shaking in the city caused the complete collapse of nearly every building in the central parts of the city including many of the newer buildings, killing about 40000 people officially. the city lies to the east of...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید