Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

Applicability of the direct displacement-based design procedure to concentrically braced frames with setbacks

Applicability of the direct displacement-based design procedure to concentrically braced frames... The objective of this paper is to investigate and develop seismic design guidelines for multi-storey vertical irregular concentrically braced frames (CBFs). The work develops a direct displacement-based design (DDBD) procedure for irregular CBFs associated with steps in building plan area. In this procedure, design displacements considered are decided upon the code and material drift limits, then the strength required to achieve this displacement is calculated and finally all structural elements are designed. A case study of a 12-storey CBF structure with vertical irregularity is designed using the developed DDBD procedure. The configuration of the vertical irregularity assessed is in the form of setbacks up the vertical axis of the building where the frames have more bays at the base of the building than at the top. Non-linear time history analysis (NLTHA) using seven different accelerograms with displacement response spectra matching the design displacement spectrum are used to record the behaviour of the irregular CBF structure when subjected to real earthquakes. It is found that the design displacements and storey drifts from the DDBD procedure for the case study matched relatively well with those recorded through the NLTHA analyses and a new DDBD procedure for CBFs with vertical irregularity is validated. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Structural Integrity and Maintenance Taylor & Francis

Applicability of the direct displacement-based design procedure to concentrically braced frames with setbacks

Download PDF

Applicability of the direct displacement-based design procedure to concentrically braced frames with setbacks

Abstract

The objective of this paper is to investigate and develop seismic design guidelines for multi-storey vertical irregular concentrically braced frames (CBFs). The work develops a direct displacement-based design (DDBD) procedure for irregular CBFs associated with steps in building plan area. In this procedure, design displacements considered are decided upon the code and material drift limits, then the strength required to achieve this displacement is calculated and finally all structural...
Loading next page...
 
/lp/taylor-francis/applicability-of-the-direct-displacement-based-design-procedure-to-07Fmw0bFos
Publisher
Taylor & Francis
Copyright
© 2021 Korea Institute for Structural Maintenance and Inspection
ISSN
2470-5322
eISSN
2470-5314
DOI
10.1080/24705314.2021.1914806
Publisher site
See Article on Publisher Site

Abstract

The objective of this paper is to investigate and develop seismic design guidelines for multi-storey vertical irregular concentrically braced frames (CBFs). The work develops a direct displacement-based design (DDBD) procedure for irregular CBFs associated with steps in building plan area. In this procedure, design displacements considered are decided upon the code and material drift limits, then the strength required to achieve this displacement is calculated and finally all structural elements are designed. A case study of a 12-storey CBF structure with vertical irregularity is designed using the developed DDBD procedure. The configuration of the vertical irregularity assessed is in the form of setbacks up the vertical axis of the building where the frames have more bays at the base of the building than at the top. Non-linear time history analysis (NLTHA) using seven different accelerograms with displacement response spectra matching the design displacement spectrum are used to record the behaviour of the irregular CBF structure when subjected to real earthquakes. It is found that the design displacements and storey drifts from the DDBD procedure for the case study matched relatively well with those recorded through the NLTHA analyses and a new DDBD procedure for CBFs with vertical irregularity is validated.

Journal

Journal of Structural Integrity and Maintenance – Taylor & Francis

Published: Jul 3, 2021

Keywords: Concentrically braced frames; vertical irregularity; direct displacement-based design; NLTHA

References

  • Ductility demands for R/C frames irregular in elevation
  • Seismic behavior of R/C buildings with setbacks designed to EC8
  • Seismic performance of R/C plane frames irregular in elevation
  • Eurocode 8, design of structures for earthquake resistance– Part 1: General rules, seismic actions and rules for buildings
  • Eurocode 1.General actions. Part 1-1: Densities, self-weight, imposed loads for buildings
  • Eurocode 3: Design of steel structures - Part 1-1: General rules and rules for buildings
  • Shake table testing of tubular steel bracing members
  • Shake table testing of concentrically braced steel structures with realistic connection details subjected to earthquakes
  • Validation of nonlinear time history analysis models for single-storey concentrically braced frames using full-scale shake table tests
  • Earthquake response of steel-framed multistorey buildings with setbacks
  • On the seismic response of asymmetric setback perimeter-frame structures
  • Object oriented program, OpenSees; Open system for earthquake engineering simulation
  • Influence of damping model on computed collapse risk of special concentrically braced frames
  • Applicability of the direct displacement-based design method to steel moment resisting frames with setbacks
  • Cyclic testing and numerical modelling of carbon steel and stainless steel tubular bracing members
  • Conceptual seismic design in performance-based earthquake engineering
  • Direct displacement-based seismic design of eccentrically braced steel frames
  • Influence of vertical irregularities on seismic response of buildings
  • Recommendations for numerical modelling of concentrically braced steel frames with gusset plate connections subjected to earthquake ground motion
  • Displacement based design of vertically irregular frame-wall structures
  • DDBD assessment of steel CBFs using full scale shake table tests with realistic connections
  • Shake table assessment of gusset plate connection behaviour in concentrically braced frames
  • Numerical simulation for steel brace members incorporating a fatigue model
  • Performance based design approach for multi-storey concentrically braced steel frames
  • Direct displacement based seismic design for single storey steel concentrically braced frames
  • Integrating expected loss and collapse risk in performance-based seismic design of structures
  • Seismic response and design of setback buildings
  • Substitute-structure method for seismic design in R/C
  • A review of research on seismic behaviour of irregular building structures since 2002
  • Highlighting differences between force-based and displacement-based design solutions for reinforced concrete frame structures
  • Equivalent viscous damping for steel concentrically braced frame structures
  • Seismic loading for buildings with setbacks
  • Dynamic response of R/C frames with irregular profiles