Near fault ground motion effects on seismic resilience of frame structures damaged in Wenchuan earthquake

2019 ◽  
Vol 16 (10) ◽  
pp. 1347-1363 ◽  
Author(s):  
Ji-Gang Xu ◽  
Gang Wu ◽  
De-Cheng Feng
Keyword(s):  
Wenchuan Earthquake ◽  
Ground Motion ◽  
Frame Structures ◽  
Near Fault ◽  
Near Fault Ground Motion ◽  
Seismic Resilience

scholarly journals Seismic Response Analysis and Control of Frame Structures with Soft First Storey under Near-Fault Ground Motions

2020 ◽  
Vol 2020 ◽  
pp. 1-13
Author(s):  
Chunyang Liu ◽  
Peng Sun ◽  
Ruofan Shi
Keyword(s):  
Seismic Response ◽  
Ground Motion ◽  
Seismic Performance ◽  
Frame Structures ◽  
Response Analysis ◽  
Main Structure ◽  
Response Characteristics ◽  
Near Fault ◽  
Buckling Restrained Brace ◽  
Near Fault Ground Motion

This paper proposes two kinds of arrangements of buckling-restrained brace dampers to strengthen soft-first-storey structures locally. Two types of near-fault ground motion, with and without pulse, were selected for a study of the seismic response characteristics of soft-first-storey structures with and without buckling-restrained brace dampers, and the effects of different bracing arrangements on improving the seismic performance of soft-first-storey structures were recognized. The results show that, compared with pulse-free ground motion, near-fault pulsed ground motion results in a more severe seismic response in soft-first-storey frame structures, leading to more serious and rapid destruction of the main structure. Buckling-restrained brace dampers have an obvious energy dissipation effect, play a better role in protecting the main structure, and have good practicality. Compared with structures in which the buckling-restrained brace dampers are arranged only on the bottommost layer, the bottom-four-layer-support structure is more advantageous in terms of seismic performance.

Application of an Investigated Lump Method to the Simulation of Ground Motion For Beichuan Town During the Wenchuan Earthquake

2016 ◽  
Vol 10 (01) ◽  
pp. 1650002 ◽  
Author(s):  
Wei Zhong ◽  
Tie-Lin Liu
Keyword(s):  
Wenchuan Earthquake ◽  
Ground Motion ◽  
Numerical Test ◽  
Near Fault ◽  
The Wenchuan Earthquake ◽  
Finite Fault ◽  
Local Topography ◽  
Differential Type ◽  
Near Fault Ground Motion ◽  
Realistic Topography

An investigated lump method based on the mixed mesh of triangle and quadrangle for simulating near-fault ground motion is presented by using finite-fault sources and a differential type of viscoelastic constitutive equations of the generalized zener body (GZB) with two mechanisms. One numerical test is performed to verify the validity and accuracy of the investigated lump method. The ground motion in Beichuan town during the Wenchuan earthquake is simulated, considering attenuation of real earth material and the effect of realistic topography. Numerical results of simulations demonstrated that the viscoelasticity of earth medium attenuates the PGAs noticeably and changes the frequency characteristics of the ground motion. The local topography influences greatly the PGAs in the area of Beichuan town.

scholarly journals A Multi Record Based Artificial Near Fault Ground Motion Generation Method

MethodsX ◽  
2020 ◽  
Vol 7 ◽  
pp. 100725
Author(s):  
Zhen Liu ◽  
Shibo Zhang ◽  
Zhe Zhang
Keyword(s):  
Ground Motion ◽  
Motion Generation ◽  
Near Fault ◽  
Near Fault Ground Motion

Applicability analysis of high-speed railway system under the action of near-fault ground motion

2020 ◽  
Vol 139 ◽  
pp. 106289
Author(s):  
Lizhong Jiang ◽  
Jian Yu ◽  
Wangbao Zhou ◽  
Wangji Yan ◽  
Zhipeng Lai ◽  
...  
Keyword(s):  
Ground Motion ◽  
High Speed ◽  
High Speed Railway ◽  
Near Fault ◽  
Railway System ◽  
Near Fault Ground Motion
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