scholarly journals Performance of Rigid Steel Frames under Adequate Soil Conditions Using Seismic Code Provisions

2018 ◽  
Vol 08 (02) ◽  
pp. 91-101
Author(s):  
Muhammad Tayyab Naqash ◽  
Qazi Umar Farooq
Keyword(s):  
Steel Frames ◽  
Soil Conditions ◽  
Seismic Code ◽  
Code Provisions

Research on Structural Influencing Coefficient of Moment-Resisting Steel Frames

2011 ◽  
Vol 105-107 ◽  
pp. 937-942
Author(s):  
Cheng Li ◽  
Qiang Gu ◽  
Jun Wang
Keyword(s):  
Strong Earthquake ◽  
Steel Frames ◽  
Local Buckling ◽  
Time History ◽  
Shell Element ◽  
Seismic Code ◽  
Behaviour Factor ◽  
Satisfactory Performance ◽  
Moment Resisting ◽  
Ductility Capacity

This paper is focused on the evaluation of the structural influencing coefficient in multi-story moment-resisting steel frames involving local bucking effect, with due consideration to both their ductility and overstrength. Ductility and overstrength play an important role in keeping satisfactory performance of structures during strong earthquake. Firstly, moment-resisting steel frames of are designed according to Chinese seismic code. Based on the non-linear shell element method, both inelastic time history and pushover analyses has been performed on these steel frames to get the global capacity envelopes. The results show that number of stores and spans have effect on the behaviour factor values, and that the local buckling affects the ductility capacity of steel frames. Finally, based on the findings presented in the article, tentative influencing coefficient values are proposed for moment-resisting steel frames.

Experimental validation of seismic code provisions for RC columns

2007 ◽  
Vol 29 (6) ◽  
pp. 1153-1164 ◽  
Author(s):  
Elizabeth Vintzileou ◽  
T.P. Tassios ◽  
M. Chronopoulos
Keyword(s):  
Experimental Validation ◽  
Rc Columns ◽  
Seismic Code ◽  
Code Provisions

Fundamental Periods of Vibration of Braced Steel Frames for Seismic Design

2005 ◽  
Vol 21 (3) ◽  
pp. 833-860 ◽  
Author(s):  
Robert Tremblay
Keyword(s):  
Lower Bound ◽  
Seismic Hazard ◽  
Seismic Design ◽  
Analytical Study ◽  
Steel Frames ◽  
Simple Expression ◽  
Soil Conditions ◽  
Concentrically Braced ◽  
Period Solution ◽  
Hazard Levels

An analytical study is performed to propose a simple expression for the fundamental period of vibration of concentrically braced steel frames. This work was carried out in the context of the development of the 2005 National Building Code of Canada (NBCC) and is mainly applicable to structures located in moderate and low seismic regions. Available field and test measurements of building periods are compared to analytical predictions. An empirical period formula is developed based on a survey of analytically computed building periods published in the literature. The influence of the 2005 NBCC design provisions on braced steel-frame periods is examined through a closed-form period solution and an extensive parametric study. Building periods are found to vary significantly with seismic hazard levels and soil conditions. An expression is tentatively proposed that provides reasonable lower-bound period estimates for most situations in Canada.

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