Performance of double skin FRP-concrete-steel self-centered segmental bridge piers subjected to forward-directivity near-fault ground motion

2020 ◽  
Vol 221 ◽  
pp. 111065
Author(s):  
Ayman Moustafa ◽  
Mohamed A. ElGawady
Keyword(s):  
Ground Motion ◽  
Bridge Piers ◽  
Near Fault ◽  
Forward Directivity ◽  
Double Skin ◽  
Near Fault Ground Motion ◽  
Segmental Bridge

scholarly journals Near-Fault Ground Motion Influence on the Seismic Responses of a Structure with Viscous Dampers considering SSI Effect

2021 ◽  
Vol 2021 ◽  
pp. 1-20
Author(s):  
Jinping Yang ◽  
Peizhen Li ◽  
Hang Jing ◽  
Meng Gao
Keyword(s):  
Ground Motion ◽  
Hanging Wall ◽  
Wall Effect ◽  
Seismic Responses ◽  
Viscous Dampers ◽  
Directivity Effect ◽  
Near Fault ◽  
Forward Directivity ◽  
Hanging Wall Effect ◽  
Near Fault Ground Motion

This paper studies the influence of the characteristics of the near-fault ground motion on the seismic responses of the structure with energy dissipation devices including soil-structure interaction (SSI). A ten-story reinforced concrete frame rested on soft site is introduced, and the viscous dampers added in the frame are designed. The numerical analysis method of the soil-structure system with viscous dampers is established through ANSYS program. In addition, the response spectra of the main characteristics of the near-fault ground motion, like hanging wall effect, velocity pulse-like effect, and forward-directivity effect, are investigated carefully to learn the features of spectra energy distribution. And then, the dynamic time-history analysis is performed on the SSI system with and without viscous dampers subjected to the selected near-fault ground motion. The study reveals that the seismic responses of the structure subjected to near-fault ground motion with hanging wall effect are obviously larger than those of the footwall effect, indicating the distinct hanging wall effects on the structural dynamic responses. In addition, the performance of the structure with viscous dampers is more influenced by the ground motion containing fling-step effect than that with forward-directivity effect. Moreover, the influence of the horizontal component of forward-directivity ground motion on the seismic responses of the structure is more obvious than that of parallel component ground motion. Consequently, the hanging wall effect, velocity pulse, and horizontal component in forward-directivity effect of the near-fault ground motion have distinct influence on the seismic responses of the structure with energy dissipation devices considering SSI effect, providing insight towards the performance-based seismic design of buildings rested at the near-fault sites considering the seismic SSI effect.

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

scholarly journals Spectral Characterization of Himalayan Near-Fault Ground Motion

2016 ◽  
Vol 60 (2) ◽  
pp. 205-215 ◽  
Author(s):  
Prabhat Kumar ◽  
◽  
Ashwani Kumar ◽  
Ashok Deota Pandey ◽  
◽  
...  
Keyword(s):  
Ground Motion ◽  
Spectral Characterization ◽  
Near Fault ◽  
Near Fault Ground Motion
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