Effective strategies for real time hybrid simulation of near seismic collapse response of moment resisting frames

2011 ◽  
Author(s):  
M. Leclerc ◽  
M. Molinari ◽  
N. Bouaanani ◽  
R. Tremblay ◽  
P. Leger ◽  
...  
Keyword(s):  
Real Time ◽  
Hybrid Simulation ◽  
Effective Strategies ◽  
Moment Resisting Frames ◽  
Seismic Collapse ◽  
Moment Resisting

scholarly journals Seismic collapse safety of reinforced concrete moment resisting frames with/without beam-column joint detailing

2021 ◽  
Vol 54 (1) ◽  
pp. 1-20
Author(s):  
Naveed Ahmad ◽  
Muhammad Rizwan ◽  
Muhammad Ashraf ◽  
Akhtar Naeem Khan ◽  
Qaisar Ali
Keyword(s):  
Reinforced Concrete ◽  
Ground Motions ◽  
Seismic Intensity ◽  
Shear Reinforcement ◽  
Dynamic Reliability ◽  
Moment Resisting Frames ◽  
Collapse Probability ◽  
Seismic Collapse ◽  
Moment Resisting ◽  
Column Joint

FEMA-P695 procedure was applied for seismic collapse safety evaluation of reinforced concrete moment resisting frames with/without beam-column joint detailing common in Pakistan. The deficient frame lacks shear reinforcement in joints and uses concrete of low compressive strength. Shake-table tests were performed on 1:3 reduced scale two-story models, to understand the progressive inelastic response of chosen frames and calibrate the inelastic finite-element based models. The seismic design factors i.e. response modification coefficient, overstrength, ductility, and displacement amplification factors (R, W0, Rμ, Cd) were quantified. Response modification factor R = 7.05 was obtained for the frame with beam-column joint detailing while R = 5.30 was obtained for the deficient frame. The corresponding deflection amplification factor Cd/R was found equal to 0.82 and 1.03, respectively. A suite of design spectrum compatible accelerograms was obtained from PEER strong ground motions for incremental dynamic analysis of numerical models. Collapse fragility functions were developed using a probabilistic nonlinear dynamic reliability-based method. The collapse margin ratio (CMR) was calculated as the ratio of seismic intensity corresponding to the 50th percentile collapse probability to the seismic intensity corresponding to the MCE level ground motions. It was critically compared with the acceptable CMR (i.e. the CMR computed with reference to a seismic intensity corresponding to the 10% collapse probability instead of MCE level ground motions). Frame with shear reinforcement in beam-column joints has achieved CMR 11% higher than the acceptable thus passing the criterion. However, the deficient frame achieved CMR 29% less than the conforming frame. This confirms the efficacy of beam-column joint detailing in reducing collapse risk.

Implementation and application of the unconditionally stable explicit parametrically dissipative KR-αmethod for real-time hybrid simulation

2014 ◽  
Vol 44 (5) ◽  
pp. 735-755 ◽  
Author(s):  
Chinmoy Kolay ◽  
James M. Ricles ◽  
Thomas M. Marullo ◽  
Akbar Mahvashmohammadi ◽  
Richard Sause
Keyword(s):  
Real Time ◽  
Hybrid Simulation ◽  
Unconditionally Stable

Multi-rate Real Time Hybrid Simulation operated on a flexible LabVIEW real-time platform

2021 ◽  
Vol 239 ◽  
pp. 112308
Author(s):  
Jacob P. Waldbjoern ◽  
Amin Maghareh ◽  
Ge Ou ◽  
Shirley J. Dyke ◽  
Henrik Stang
Keyword(s):  
Real Time ◽  
Hybrid Simulation

Performance-based assessment of seismic-resilient steel moment resisting frames equipped with innovative column base connections

Structures ◽  
2021 ◽  
Vol 32 ◽  
pp. 1646-1664
Author(s):  
Elena Elettore ◽  
Annarosa Lettieri ◽  
Fabio Freddi ◽  
Massimo Latour ◽  
Gianvittorio Rizzano
Keyword(s):  
Steel Moment Resisting Frames ◽  
Moment Resisting Frames ◽  
Performance Based Assessment ◽  
Moment Resisting ◽  
Base Connections ◽  
Column Base
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