Seismic response factors of code-designed high-rise buildings using 3D non-linear analysis
department or school: Applied Science, Faculty of
department or school: Engineering, School of (Okanagan)
data provider: DSpace
degree campus: UBCO
creator: Hussain, Nadeem
issued: 2024-06-20T15:37:37Z
issued: 2024
related degree: Doctor of Philosophy - PhD
degree grantor: University of British Columbia
description: Despite the recent initiatives and developments in building design provisions using performance-based design, practicing engineers frequently adopt force-based design approaches irrespective of the structural system or building irregularity. Modern seismic building codes adopt the concept of simplifying the complex nonlinear response of a structure under seismic loading to an equivalent linear response through elastic analytical procedures using seismic design response factors. Previous studies also adopted different methodologies for quantifying the seismic response factors. This study initially presents a systematic review of the response factors used with linear analytical procedures recommended by modern building design provisions using SDOF and MDOF systems covering previous analytical, experimental and hybrid works. Limitations and gaps are identified from the previous works with 94% on 2D analysis, 92% on regular low-rise buildings and a mere 15.4% of earlier research on shear walls considering mostly unidirectional seismic loading. This comparative review highlighted the need for future research to calibrate seismic response factors to achieve more economical designs with consistent safety margins for different structural systems and irregularities using 3D bidirectional seismic loading. This study thus assessed the force-based seismic design approach of building codes in which the elastic seismic forces and deformation demands are adjusted through the response modification coefficients to arrive at an economical design under the design earthquake. Toward this objective, four multi-storey steel buildings of 8 to 20 storeys are designed using different standards. Additionally, nine high-rise (RC) structures of 40 to 60 storeys are designed in detail to ensure fair assessment of code-recommended coefficients. Three-dimensional (3D) inelastic analyses are performed for the 13 benchmark buildings using detailed fibre-based models. ISAs and MBIDAs under 26 strong…
aggregated CHO: https://circle.library.ubc.ca/rest/handle/2429/88490
note: Seismic Response Factors of Code-designed High-rise Buildings using 3D Non-linear Analysis by Nadeem Hussain B.E., Bangalore University, 1992 M.Sc., United Arab Emirates University, 2013 A DISSERTATION SUBMITTED IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF DOCTOR OF PHILOSPHY in THE COLLEGE OF GRADUATE STUDIES (Civil Engineering) THE UNIVERSITY OF BRITISH COLUMBIA (Okanagan) June 2024 © Nadeem Hussain, 2024 ii The following individuals certify that they have read, and recommend to the College of Graduate Studies for acceptance, a dissertation entitled: Seismic Response Factors of Code-designed High-rise Buildings using 3D Non-linear Analysis submitted by Nadeem Hussain in partial fulfillment of the requirements of the degree of Doctor of Philosophy . Dr. Shahria Alam, School of Engineering Supervisor Dr. Sumi Siddiqua, School of Engineering Supervisory Committee Member Dr. Ahmad Rteil, School of Engineering Supervisory Committee Member Dr. Stephen O’Leary, School of Engineering University Examiner Dr. Anjan Bhowmick, Concordia University External Examiner Additional Committee Members include: Dr. Aman Mwafy, United Arab Emirates University Co-Supervisor iii Abstract Despite the recent initiatives and developments in building design provisions using performance-based design, practicing engineers frequently adopt force-based design approaches irrespective of the structural system or building irregularity. Modern seismic building codes adopt the concept of simplifying the complex nonlinear response of a structure under seismic loading to an equivalent linear response through elastic analytical procedures using seismic design response factors. Previous studies also adopted different methodologies for quantifying the seismic response factors. This study initially presents a systematic review of the response factors used with linear analytical procedures recommended by modern building design provisions using SDOF and MDOF systems covering previous analytic…
has type: Thesis/Dissertation
date issued: 2024-09
is shown at: 10.14288/1.0444002
language: eng
degree discipline: Civil Engineering
provider: Vancouver : University of British Columbia Library
publisher: University of British Columbia
rights: Attribution-NonCommercial-NoDerivatives 4.0 International
rights URI: http://creativecommons.org/licenses/by-nc-nd/4.0/
scholar level: Graduate
contributor: Alam, M. Shahria
contributor: Mwafy, Aman
type: Text
identifier URI: http://hdl.handle.net/2429/88490