نتایج جستجو برای: near fault ground motion
تعداد نتایج: 650229 فیلتر نتایج به سال:
In violent earthquakes, ground motion is considered to change dramatically in the process of spatial propagation. Strong spatially varying exists near fault area, and it can cause large-span large stiffness structure be damaged. this paper, a typical long-span steel box arch bridge selected as an engineering case. order simulate variation accurately, records that sampled former earthquake are u...
ABSTRACT Fault zones are major sources of hazard for many populated regions around the world. Earthquakes still occur unanticipated, and research has started to observe fault properties with increasing spatial temporal resolution, having goal detecting signs stress accumulation strength weakening that may anticipate rupture. The common practice is monitoring source parameters retrieved from mea...
A base-isolated building may sometimes exhibit an undesirable large response to a long-duration, long-period earthquake ground motion and a connected building system without base-isolation may show a large response to a near-fault (rather high-frequency) earthquake ground motion. To overcome both deficiencies, a new hybrid control system of base-isolation and building-connection is proposed and...
This study focuses on developing fragility-based seismic vulnerability assessment techniques for seismically retrofitted multi-column bridge bent. Fragility curves are developed using Probabilistic Seismic Demand Model (PSDM) to assess the relative performance of different retrofit methods under near fault ground motions. Two different retrofit techniques namely CFRP jacketing and ECC jacketing...
تکان های شدید زمین حین رخداد زلزله یکی از مهم ترین خطراتی است که مهندس محاسب برای تحلیل و طراحی ساختمان ناگزیر از احتساب آن است. در این راستا دستیابی به عملکرد مورد انتظار سازه در هنگام وقوع زلزله و پس از آن با توجه به سطح عملکرد در نظر گرفته شده، ضروری می باشد. از آنجا که آیین نامه های زلزله، ضوابط مناسبی برای طراحی ساختمان ها در حوزه نزدیک گسل ارائه نمی دهند، دستیابی ب ابزار طراحی مناسب (مانن...
Introduction One-dimensional site response analysis is widely performed to account for local site effects during an earthquake. Most of these approaches assume that dynamic soil properties are frequency independent. Laboratory test results as well as in-situ testing show that shear modulus and damping ratio are dependent on the frequency of loading. Although the amplification factor at ground ...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید