Seismic performance of reinforced concrete moment resisting frames

2007 ◽  
Vol 29 (9) ◽  
pp. 2365-2380 ◽  
Author(s):  
R. Sadjadi ◽  
M.R. Kianoush ◽  
S. Talebi
2020 ◽  
Vol 10 (20) ◽  
pp. 7061 ◽  
Author(s):  
Kyong Min Ro ◽  
Min Sook Kim ◽  
Young Hak Lee

Buildings constructed with non-seismic details are at risk of damage and collapse when an earthquake occurs due to a lack of strength, stiffness, and ductility. For reinforced concrete (RC) moment-resisting frames, seismic retrofitting methods that can enhance strength or ductility should be applied. However, such strategies have many disadvantages related to constructability, serviceability, securing integrity, and cost. In this paper, a welded concrete-filled steel tube (WCFST) system was examined in order to resolve the problems of the existing seismic retrofitting methods for RC moment-resisting frames. To evaluate the seismic performance of the proposed system, two specimens, one with non-seismic details and another reinforced with a WCFST seismic system, were manufactured for the cyclic loading tests. As a result of the experiments, the specimen retrofitted with the WCFST system showed maximum load, effective stiffness, and energy dissipation capacity values approximately 3, 2, and 2.5 times greater, respectively, than those obtained from the existing reinforced concrete frame specimen. The experimental results indicate that the proposed WCFST system is expected to be effective at improving the seismic performance by enhancing both the strength of the existing reinforced concrete frame structures and the dissipation of the seismic energy.


2020 ◽  
Vol 21 (5) ◽  
pp. 2028-2043
Author(s):  
Jia‐jun Fan ◽  
Gang Wu ◽  
Ao‐lin Xu ◽  
De‐cheng Feng ◽  
Zhi‐peng Chen

2014 ◽  
Vol 24 (7) ◽  
pp. 477-490 ◽  
Author(s):  
Zeynep T. Değer ◽  
Tony Y. Yang ◽  
John W. Wallace ◽  
Jack Moehle

2012 ◽  
Vol 15 (8) ◽  
pp. 1439-1453 ◽  
Author(s):  
Behrouz Asgarian ◽  
Anahita Norouzi ◽  
Pejman Alanjari ◽  
Masoud Mirtaheri

1999 ◽  
Vol 26 (5) ◽  
pp. 606-617 ◽  
Author(s):  
A C Heidebrecht ◽  
N Naumoski

This paper describes an investigation into the seismic performance of a six-storey ductile moment-resisting frame structure located in Vancouver and designed and detailed in accordance with the seismic provisions of the National Building Code of Canada (1995). Both pushover and dynamic analyses are conducted using an inelastic model of the structure as designed and detailed. The structural performance of a number of design variations is evaluated using interstorey drift and member curvature ductility response as performance measures. All frames studied are expected to perform at an operational level when subjected to design level seismic excitations and to meet life safe performance criteria at excitations of twice the design level.Key words: seismic, building, frames, ductile, design, performance, reinforced concrete, code.


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