Seismic Performance and Cost Comparison of Concentrically Braced Frames Designed By Performance-Based Plastic Design and Force-Based Design Method
Sejal P Dalal1, Khyati Vaidya2
1Sejal P Dalal, Department of Civil Engineering, Sardar Vallabhbhai Patel Institute of Technology SVIT, Vasad (Gujarat), India.
2Khyati Vaidya, Department of Civil Engineering, Sardar Vallabhbhai Patel Institute of Technology SVIT, Vasad (Gujarat), India.
Manuscript received on 24 August 2019 | Revised Manuscript received on 05 September 2019 | Manuscript Published on 16 September 2019 | PP: 997-1001 | Volume-8 Issue-2S6 July 2019 | Retrieval Number: B11150782S619/2019©BEIESP | DOI: 10.35940/ijrte.B1115.0782S619
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: Comparative study of 5, 10 and 15 storied steel Concentrically Braced Frames (CBF) designed by Performance Based Plastic Design (PBPD) method and Force Based Design (FBD) method is presented here. The parameters selected for comparison of the frames are (a) Lateral load distribution (b) Design sections of members (c) Seismic performance and (d) Cost. It is observed that the lateral load’s distribution in case of PBPD frames is found more factual. The column sections of PBPD frames are heavier, and brace sections are lighter compared to FBD frames given the fact that PBPD is designed for higher ductility factor. The PBPD method gives a better seismic performance by achieving the predetermined failure mechanism and avoiding total collapse. Taller structures offer cost-effectiveness for PBPD method.
Keywords: Performance-Based Plastic Design Method Force Based Design Method Concentrically Braced Frames Seismic Performance Performance Point.
Scope of the Article: Design and Performance of Green Building