Seismic evaluation of FRP strengthened RC buildings subjected to near-fault ground motions having fling step

2010 ◽  
Vol 92 (5) ◽  
pp. 1200-1211 ◽  
Author(s):  
A. Mortezaei ◽  
H.R. Ronagh ◽  
A. Kheyroddin
Keyword(s):  
Ground Motions ◽  
Seismic Evaluation ◽  
Rc Buildings ◽  
Near Fault ◽  
Fling Step

Effects of Fling Step and Forward Directivity on Seismic Response of Buildings

2006 ◽  
Vol 22 (2) ◽  
pp. 367-390 ◽  
Author(s):  
Erol Kalkan ◽  
Sashi K. Kunnath
Keyword(s):  
Seismic Response ◽  
Ground Motions ◽  
High Amplitude ◽  
Moment Frames ◽  
Steel Moment Frames ◽  
Damage Potential ◽  
Near Fault ◽  
Forward Directivity ◽  
Fling Step ◽  
Far Fault

This paper investigates the consequences of well-known characteristics of near-fault ground motions on the seismic response of steel moment frames. Additionally, idealized pulses are utilized in a separate study to gain further insight into the effects of high-amplitude pulses on structural demands. Simple input pulses were also synthesized to simulate artificial fling-step effects in ground motions originally having forward directivity. Findings from the study reveal that median maximum demands and the dispersion in the peak values were higher for near-fault records than far-fault motions. The arrival of the velocity pulse in a near-fault record causes the structure to dissipate considerable input energy in relatively few plastic cycles, whereas cumulative effects from increased cyclic demands are more pronounced in far-fault records. For pulse-type input, the maximum demand is a function of the ratio of the pulse period to the fundamental period of the structure. Records with fling effects were found to excite systems primarily in their fundamental mode while waveforms with forward directivity in the absence of fling caused higher modes to be activated. It is concluded that the acceleration and velocity spectra, when examined collectively, can be utilized to reasonably assess the damage potential of near-fault records.

Influence of floor system on seismic behavior of RC buildings to forward directivity and fling-step in the near-fault region

Structures ◽  
2021 ◽  
Vol 30 ◽  
pp. 803-817
Author(s):  
Sayed Mahmoud ◽  
Ali Alqarni ◽  
Joseph Saliba ◽  
Amal H. Ibrahim ◽  
Magdy genidy ◽  
...  
Keyword(s):  
Seismic Behavior ◽  
Rc Buildings ◽  
Near Fault ◽  
Forward Directivity ◽  
Fling Step ◽  
Floor System ◽  
Fault Region

Effects of hysteretic models on the seismic evaluation of a collapsed irregular building from bidirectional near-fault ground motions on a shake table

2021 ◽  
Vol 247 ◽  
pp. 113087
Author(s):  
Jui-Liang Lin ◽  
Wen-Hui Chen ◽  
Fu-Pei Hsiao ◽  
Yuan-Tao Weng ◽  
Wen-Cheng Shen ◽  
...  
Keyword(s):  
Ground Motions ◽  
Shake Table ◽  
Seismic Evaluation ◽  
Near Fault

Seismic response of RC buildings subjected to fling‐step in the near‐fault region

2019 ◽  
Vol 21 (5) ◽  
pp. 1919-1937
Author(s):  
Hamed Hamidi ◽  
Amin Karbassi ◽  
Pierino Lestuzzi
Keyword(s):  
Seismic Response ◽  
Rc Buildings ◽  
Near Fault ◽  
Fling Step ◽  
Fault Region

Near-fault fling-step ground motions: Characteristics and simulation

2017 ◽  
Vol 101 ◽  
pp. 90-104 ◽  
Author(s):  
Kshitij K. Yadav ◽  
Vinay K. Gupta
Keyword(s):  
Ground Motions ◽  
Near Fault ◽  
Fling Step
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