Results 21 to 30 of about 31,353 (167)

P-Delta Effects on Nonlinear Seismic Behavior of Steel Moment-Resisting Frame Structures Subjected to Near-Fault and Far-Fault Ground Motions

open access: yesBuildings, 2022
This paper presents a comparison of P-Delta effects on the nonlinear seismic behavior of the steel moment-resisting frame structures (MRFs) subjected to near-fault and far-fault ground motions.
Hu Cheng   +5 more
doaj   +1 more source

E‌V‌A‌L‌U‌A‌T‌I‌O‌N O‌F S‌E‌I‌S‌M‌I‌C B‌E‌H‌A‌V‌I‌O‌R O‌F S‌M‌R‌F‌s W‌I‌T‌H A‌N‌D W‌I‌T‌H‌O‌U‌T S‌T‌E‌E‌L S‌H‌E‌A‌R W‌A‌L‌L A‌G‌A‌I‌N‌S‌T S‌E‌Q‌U‌E‌N‌C‌I‌N‌G E‌A‌R‌T‌H‌Q‌U‌A‌K‌E‌S [PDF]

open access: yesمهندسی عمران شریف, 2022
A better understanding of the dynamic behavior and seismic performance of structures has led to advances in structural design in recent years, but despite recent advances, many existing structures are not earthquake resistant.
N. Siahpolo, O. Latifian, S. A. Razavi
doaj   +1 more source

Hybrid RNC-isolation of structures under near-fault earthquakes [PDF]

open access: yes2012 American Control Conference (ACC), 2012
The problem of combining active damping with a purely passive isolation system, with hysteretic damping,to reduce possible pounding effects under near-fault ground motions is addressed. The used isolation system is a recentlyproposed one that is referred to as roll in cage (RNC) isolator.
Abdel Kareem Moustafa, Mohamed Ismail   +2 more
openaire   +2 more sources

Seismic Damage Analysis of Large-Span Tied-Arch Bridge with Concrete-Filled Steel Tubes Subjected to Near-Fault Ground Motion

open access: yesGeofluids, 2022
In this study, the damage mechanism due to near-fault ground motions on large-span arch bridges with concrete-filled steel tubes was investigated based on a case study.
Yingzhi Xia   +3 more
doaj   +1 more source

Co- and post-seismic vertical displacements of Wenchuan Ms8.0 earthquake near Beichuan

open access: yesGeodesy and Geodynamics, 2011
Co- and post-seismic vertical displacements of the Wenchuan earthquake derived from two measurements in 2008 and 2010 along two partly-damaged leveling lines near the epicenter show the following features: Co-seismic displacement at Beichuan-Yingxiu ...
Dong Yunhong   +3 more
doaj   +1 more source

The Alto Tiberina Near Fault Observatory (northern Apennines, Italy)

open access: yesAnnals of Geophysics, 2014
The availability of multidisciplinary and high-resolution data is a fundamental requirement to understand the physics of earthquakes and faulting. We present the Alto Tiberina Near Fault Observatory (TABOO), a research infrastructure devoted to studying preparatory processes, slow and fast deformation along a fault system located in the upper Tiber ...
Chiaraluce Lauro   +17 more
openaire   +4 more sources

近断层速度脉冲型地震动纵向输入下综合管廊振动台试验

open access: yesDizhen xuebao
基于振动台试验,探讨了速度脉冲对综合管廊动力响应的影响,重点阐明了地震动速度脉冲特性如何影响综合管廊和周围土壤的地震行为。选取具有速度脉冲的实际地震动记录和合成的与实际地震动记录具有相同反应谱的无速度脉冲地震动时程,同时将其加速度幅值分别调整为0.10g,0.20g,0.30g作为输入,设计并开展了地震动纵向输入下的综合管廊振动台试验。基于试验数据分析了场地土体的地震反应变化规律、综合管廊结构的地震响应特征和土-结构相互作用效应。研究结果表明:① 土体在连续试验加载下结构发生变化 ...
Jian Chu   +5 more
doaj   +1 more source

Case Study of the Characteristics and Mechanism of Rock Burst near Fault in Yima Coalfield, China

open access: yesShock and Vibration, 2021
Deep mining near faults may easily cause rock bursts, which seriously threaten mining safety. Based on the engineering background of deep mining near fault in Yima coalfield, by collecting the rock burst events that happened near fault during deep mining,
Zhenhua Jiao   +3 more
doaj   +1 more source

Slip‐weakening distance estimated at near‐fault stations [PDF]

open access: yesGeophysical Research Letters, 2007
We estimated the slip‐weakening distance from the seismograms recorded at near‐fault stations, considering the effect of spatio‐temporal filtering for a continuous propagation of rupture. This effect is usually observed at some distance away from the fault. We used a Green's function for 2‐D anti‐plane rupture propagating with constant rupture velocity
Eiichi Fukuyama, Takeshi Mikumo
openaire   +1 more source

Monitoring aseismic fault creep using persistent urban geodetic markers generated from mobile laser scanning

open access: yesISPRS Open Journal of Photogrammetry and Remote Sensing, 2021
High resolution and high accuracy distributed detection of fault creep deformation remains challenging given limited observations and associated change detection strategies.
Xinxiang Zhu   +3 more
doaj   +1 more source

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