Fundamental period of masonry infilled moment-resisting steel frame buildings

2016 ◽  
Vol 26 (5) ◽  
pp. e1342 ◽  
Author(s):  
Hamid Beiraghi
Keyword(s):  
Steel Frame ◽  
Fundamental Period ◽  
Frame Buildings ◽  
Steel Frame Buildings ◽  
Moment Resisting

Toward a better understanding of the dynamic characteristics of single-storey braced steel frame buildings in Canada

2009 ◽  
Vol 36 (6) ◽  
pp. 969-979 ◽  
Author(s):  
Charles-Philippe Lamarche ◽  
Jean Proulx ◽  
Patrick Paultre ◽  
Martin Turek ◽  
Carlos E. Ventura ◽  
...  
Keyword(s):  
Dynamic Characteristics ◽  
Field Tests ◽  
Steel Frame ◽  
Geometric Parameters ◽  
Fundamental Period ◽  
Mode Shapes ◽  
Fundamental Vibration ◽  
Vibration Period ◽  
Frame Buildings ◽  
Steel Frame Buildings

Single-storey braced steel frame buildings (SSBSFs) are currently the most widely used commercial structures, which include strip malls, power centres, warehouses, small and medium-sized industrial plants. The lateral seismic or wind forces acting on such low-rise structures are usually transferred from a metal roof-deck diaphragm to a system of vertical bracing members. Because these flexible roof diaphragms have a considerable effect on the dynamic response of SSBSFs during an earthquake, they also play an important role in the evaluation of the fundamental vibration period, a key parameter in determining the magnitude of the design seismic forces. It is therefore of utmost importance to reliably predict the fundamental period of SSBSFs. This paper presents the results of a four-year field measurement research project on the dynamic behaviour of SSBSFs. The goal of the project was to create a reliable database for the dynamic characteristics of SSBSFs (periods, mode shapes, and damping) and to find a relationship between them and the geometric parameters (height and plan dimensions). The field tests are described, along with the selected buildings and experimental setup. The measured fundamental periods are then compared to the National building code of Canada (NBCC) empirical equations. A statistical analysis of the data, based on different regression models, yielded new proposed building geometric parameters to be used in simple equations for the prediction of the fundamental period of SSBSFs.

Seismic and Robustness Design of Steel Frame Buildings

2018 ◽  
Vol 763 ◽  
pp. 116-123 ◽  
Author(s):  
Massimiliano Ferraioli ◽  
Angelo Lavino ◽  
Alberto Mandara ◽  
Marianna Donciglio ◽  
Antonio Formisano
Keyword(s):  
Progressive Collapse ◽  
Three Dimensional ◽  
Design Procedure ◽  
Steel Frame ◽  
Fundamental Parameters ◽  
Frame Buildings ◽  
Steel Frame Buildings ◽  
European Standards ◽  
Three Dimensional Models ◽  
Column Removal Scenario

In this paper, a design procedure that combines both progressive collapse design under column removal scenario and capacity design to produce a hierarchy of design strengths is presented. The procedure develops in the context of the European Standards, using the classification of European steel sections and considering the seismic design features. Three-dimensional models of typical multi-storey steel frame buildings are employed in numerical analysis. The design for progressive collapse is carried out with three types of analysis, namely linear static, nonlinear static and nonlinear dynamic. Since the behaviour following sudden column loss is likely to be inelastic and possibly implicate catenary effects, both geometric and material nonlinearities are considered. The influence of the fundamental parameters involved in seismic and robustness design is finally investigated.

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