Strengthening of moment-resisting frame structures against near-fault ground motion effects

2004 ◽  
Vol 33 (6) ◽  
pp. 707-722 ◽  
Author(s):  
Babak Alavi ◽  
Helmut Krawinkler
Keyword(s):  
Ground Motion ◽  
Frame Structures ◽  
Near Fault ◽  
Moment Resisting Frame ◽  
Moment Resisting ◽  
Near Fault Ground Motion

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.

Hysteresis effect on earthquake risk assessment of moment resisting frame structures

2021 ◽  
Vol 242 ◽  
pp. 112532
Author(s):  
Zhenhua Huang ◽  
Liping Cai ◽  
Yashica Pandey ◽  
Yong Tao ◽  
William Telone
Keyword(s):  
Risk Assessment ◽  
Hysteresis Effect ◽  
Frame Structures ◽  
Earthquake Risk ◽  
Moment Resisting Frame ◽  
Moment Resisting ◽  
Earthquake Risk Assessment
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