scholarly journals DAMAGE EVALUATION OF BEAM-ENDS IN CONCENTRICALLY BRACED STEEL FRAMES DURING LONG-PERIOD AND LONG-DURATION GROUND MOTIONS

2017 ◽  
Vol 82 (731) ◽  
pp. 115-122
Author(s):  
Ryota MATSUI ◽  
Yusuke INABA ◽  
Toru TAKEUCHI
Keyword(s):  
Ground Motions ◽  
Steel Frames ◽  
Damage Evaluation ◽  
Long Period ◽  
Long Duration ◽  
Concentrically Braced

On the Use of Vector-Valued Intensity Measure to Predict Peak and Cumulative Demands of Steel Frames under Narrow-Band Motions

2014 ◽  
Vol 595 ◽  
pp. 137-142 ◽  
Author(s):  
Edén Bojórquez ◽  
Alfredo Reyes-Salazar ◽  
Sonia E. Ruiz
Keyword(s):  
Narrow Band ◽  
Ground Motions ◽  
Steel Frames ◽  
Spectral Shape ◽  
Intensity Measure ◽  
Intensity Measures ◽  
Energy Demands ◽  
Long Duration ◽  
Story Drift ◽  
Vector Valued

In this study, various alternative vector-valued ground motion intensity measures (IMs) are used to estimate maximum inter-story drifts and hysteretic energy demands of steel framed buildings under long duration narrow-band ground motions. The vectors are based on the spectral acceleration at first mode of the structure as first parameterSa (T1). As the second parameter of the vector,IMsrelated to peak, integral and spectral shape parameters are selected. It is concluded that spectral-shape-based vector-valuedIMshave the best relation with maximum inter-story drift and energy demands in steel frames subjected to narrow-band earthquake ground motions.

Seismic capacity of retrofitted beam-column connections in high-rise steel frames when subjected to long-period ground motions

2011 ◽  
Vol 41 (4) ◽  
pp. 735-753 ◽  
Author(s):  
Yu-Lin Chung ◽  
Takuya Nagae ◽  
Tomohiro Matsumiya ◽  
Masayoshi Nakashima
Keyword(s):  
Ground Motions ◽  
Steel Frames ◽  
Seismic Capacity ◽  
High Rise ◽  
Long Period
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