Displacement Based Design Optimization of Steel Moment Frames

Optimization of steel moment resisting frames considering the displacement as the fundamental element is the main aim of the present study. DDBD (Direct Displacement Based Design) methodology have been used for the subject purpose. This design methodology have been developed to cater for the shortco...

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Main Authors: Ghazi Arslan Ahmed, Faisal Shabbir
Format: Article
Language:English
Published: Mehran University of Engineering and Technology 2018-07-01
Series:Mehran University Research Journal of Engineering and Technology
Subjects:
Online Access:https://doi.org/10.22581/muet1982.1803.11
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author Ghazi Arslan Ahmed
Faisal Shabbir
author_facet Ghazi Arslan Ahmed
Faisal Shabbir
author_sort Ghazi Arslan Ahmed
collection DOAJ
description Optimization of steel moment resisting frames considering the displacement as the fundamental element is the main aim of the present study. DDBD (Direct Displacement Based Design) methodology have been used for the subject purpose. This design methodology have been developed to cater for the shortcomings in the current FBD (Force Based Design) methodology that is in practice. Steel moment frame have been analyzed and designed with both FBD and DDBD methodologies. Strength constraints imposed by AISCLRFD (American Institute of Steel Construction Load and Resistance Factor Design) and maximum allowable displacement constraints set forth by the FEMA-356 (Federal Emergency Management Agency) against the different performance levels are checked during the optimization process. Load combinations selected are in accordance with ASCE 7-05 (American Society for Civil Engineers) Numerical example presented exhibit the advantages of DDBD over FBD methodology. It was observed that the drift experienced by the structure designed according to DDBD varies more uniformly with height as compared to FBD.
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spelling doaj.art-566a254c15eb40d4a8d90d4d8bc24a012022-12-21T23:52:52ZengMehran University of Engineering and TechnologyMehran University Research Journal of Engineering and Technology0254-78212413-72192018-07-0137357158010.22581/muet1982.1803.11Displacement Based Design Optimization of Steel Moment FramesGhazi Arslan Ahmed0Faisal Shabbir1Department of Civil Engineering, University of Engineering and Technology Taxila.Department of Civil Engineering, University of Engineering and Technology Taxila.Optimization of steel moment resisting frames considering the displacement as the fundamental element is the main aim of the present study. DDBD (Direct Displacement Based Design) methodology have been used for the subject purpose. This design methodology have been developed to cater for the shortcomings in the current FBD (Force Based Design) methodology that is in practice. Steel moment frame have been analyzed and designed with both FBD and DDBD methodologies. Strength constraints imposed by AISCLRFD (American Institute of Steel Construction Load and Resistance Factor Design) and maximum allowable displacement constraints set forth by the FEMA-356 (Federal Emergency Management Agency) against the different performance levels are checked during the optimization process. Load combinations selected are in accordance with ASCE 7-05 (American Society for Civil Engineers) Numerical example presented exhibit the advantages of DDBD over FBD methodology. It was observed that the drift experienced by the structure designed according to DDBD varies more uniformly with height as compared to FBD.https://doi.org/10.22581/muet1982.1803.11Steel Moment Resisting FramesDirect Displacement Based DesignStructural OptimizationNon-Linear Static Analysis.
spellingShingle Ghazi Arslan Ahmed
Faisal Shabbir
Displacement Based Design Optimization of Steel Moment Frames
Mehran University Research Journal of Engineering and Technology
Steel Moment Resisting Frames
Direct Displacement Based Design
Structural Optimization
Non-Linear Static Analysis.
title Displacement Based Design Optimization of Steel Moment Frames
title_full Displacement Based Design Optimization of Steel Moment Frames
title_fullStr Displacement Based Design Optimization of Steel Moment Frames
title_full_unstemmed Displacement Based Design Optimization of Steel Moment Frames
title_short Displacement Based Design Optimization of Steel Moment Frames
title_sort displacement based design optimization of steel moment frames
topic Steel Moment Resisting Frames
Direct Displacement Based Design
Structural Optimization
Non-Linear Static Analysis.
url https://doi.org/10.22581/muet1982.1803.11
work_keys_str_mv AT ghaziarslanahmed displacementbaseddesignoptimizationofsteelmomentframes
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