Displacement Based Design Optimization of Steel Moment Frames

Abstract

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.

Authors and Affiliations

G. A. Ahmed, F. Shabbir

Keywords

Related Articles

Effect of Steel Fibers on Heat of Hydration and Mechanical Properties of Concrete Containing Fly Ash

This study investigated the effects of steel fibers on the fresh and hardened properties, and heat of hydration of concrete containing FA (Fly Ash). A total of 192 samples were cast comprising cubes, cylinders, and prism...

Effect of Intercritical Heat Treatment on Mechanical Properties of Reinforcing Steel Bars

Intercritical heat treatments attempts were made to enhance the mechanical properties of reinforcing steel bars milled from scrap metal. For this, two grades of steel bars were obtained from different steel mills and the...

Statistical Modeling for Stability of Emulsion Liquid Membrane for the Removal of Anionic Dyes from Textile Wastewater

The importance of statistical modeling is obvious because it imparts an imperative role in predicting the effects of significant factors on any experimental process. In recent days, ELMs (Emulsion Liquid Membranes) are c...

Factors Causing Health and Safety Hazards in Construction Projects in Pakistan

In spite of technical advancements, construction industry in developing countries, including Pakistan, heavily relies upon manual labor and orthodox methods of construction. Such practices then give rise to safety issues...

Individual and Organizational Impact of Enterprises Resources Planning System in Healthcare Sector

Use of ERPS (Enterprise Resource Planning System) in healthcare sector has positive impacts. The purpose of this research is to find out the individual and organizational impact in healthcare sector. Hypotheses were post...

Download PDF file
  • EP ID EP304815
  • DOI 10.22581/muet1982.1803.11
  • Views 87
  • Downloads 0

How To Cite

G. A. Ahmed, F. Shabbir (2018). Displacement Based Design Optimization of Steel Moment Frames. Mehran University Research Journal of Engineering and Technology, 37(3), 571-580. https://europub.co.uk./articles/-A-304815