scholarly journals OPTIMUM DESIGN METHODS FOR STEEL FRAMES CONSIDERING TRANSIENT DYNAMIC ELASTO-PLASTIC RESPONSES USING PARTLY AVAILABLE SENSITIVITY INFORMATION

2013 ◽  
Vol 78 (683) ◽  
pp. 91-99
Author(s):  
Makoto YAMAKAWA ◽  
Makoto OHSAKI ◽  
Eisuke MITSUDA
Keyword(s):  
Optimum Design ◽  
Steel Frames ◽  
Design Methods ◽  
Transient Dynamic ◽  
Plastic Responses

Optimum design of unbraced steel frames using advanced analysis

2000 ◽  
Author(s):  
C. Chang ◽  
M. Park ◽  
S. Park ◽  
H. Kim ◽  
K. Kim ◽  
...  
Keyword(s):  
Optimum Design ◽  
Steel Frames ◽  
Advanced Analysis

scholarly journals PERFORMANCE BASED DESIGN OF UNBRACED STEEL FRAMES EXPOSED TO NATURAL FIRE SCENARIOS

2016 ◽  
Author(s):  
Carlos Couto ◽  
Thiago Silva ◽  
Martina Carić ◽  
Paulo Vila Real ◽  
Davor Skejić
Keyword(s):  
Fire Resistance ◽  
Steel Frames ◽  
Design Methods ◽  
The Other ◽  
Performance Based Design ◽  
The Finite Element Method ◽  
Natural Fire ◽  
Fire Scenarios ◽  
Buckling Coefficient ◽  
Structural Engineers

<p>According to the Eurocode 3 Part 1-2 (EN1993-1-2) (CEN 2005b), it is possible for structural engineers to consider physical based thermal actions and to do performance based design instead of using prescriptive rules based on nominal fire curves. However, some uncertainties remain in the use of such approaches. This study focus on the clarification of the use of the simplified design methods to assess the fire resistance of unbraced steel frames exposed to fire. On the other hand, a recent study (Couto et al. 2013) suggests the use of a buckling coefficient of 1.0 for all the columns except those belonging to the first storey of a pinned framed where 2.0 should be taken instead and it is unclear if the consideration of such values for the buckling lengths is adequate when using performance based designs.</p>In this study, a comparison is made between simple and advanced calculation models and it is demonstrated that the simple design methods, using the suggested buckling coefficients to calculate the fire resistance of the frames are safe sided when compared to the use of advanced calculations using the finite element method (FEM).

Optimum design of planar steel frames using the Search Group Algorithm

2016 ◽  
Vol 39 (4) ◽  
pp. 1405-1418 ◽  
Author(s):  
Felipe Carraro ◽  
Rafael Holdorf Lopez ◽  
Leandro Fleck Fadel Miguel
Keyword(s):  
Optimum Design ◽  
Steel Frames
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