A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Reliability-Based Design of Force-Controlled Components in Rocking Steel-Braced Frames
Despite the importance of force-controlled components, the implications of their failure to the overall performance of controlled rocking steel braced frames (CRSBFs) have not been examined in prior studies. This paper presents a reliability-based methodology for quantifying the relationship between the response of CRSBF force-controlled components (frame beams, columns, and braces) and system-level performance. Structural response simulation of nonlinear models was used to investigate the relationship between the behavior of CRSBF force-controlled components and system-level performance metrics. Vulnerability- and risk-based assessments of the collapse and unsafe placard trigger (UPT) limit states were performed with and without considering the possibility of force-controlled component failure, using varied ratios of the resistance to the load factors used in the design of CRSBFs. The results of a case study using three-, six-, and nine-story structures showed that force-controlled component failure had a larger influence on collapse safety compared to unsafe placard assignment. For both limit states, the effect of force-controlled component behavior was lesser for taller buildings.
Reliability-Based Design of Force-Controlled Components in Rocking Steel-Braced Frames
Despite the importance of force-controlled components, the implications of their failure to the overall performance of controlled rocking steel braced frames (CRSBFs) have not been examined in prior studies. This paper presents a reliability-based methodology for quantifying the relationship between the response of CRSBF force-controlled components (frame beams, columns, and braces) and system-level performance. Structural response simulation of nonlinear models was used to investigate the relationship between the behavior of CRSBF force-controlled components and system-level performance metrics. Vulnerability- and risk-based assessments of the collapse and unsafe placard trigger (UPT) limit states were performed with and without considering the possibility of force-controlled component failure, using varied ratios of the resistance to the load factors used in the design of CRSBFs. The results of a case study using three-, six-, and nine-story structures showed that force-controlled component failure had a larger influence on collapse safety compared to unsafe placard assignment. For both limit states, the effect of force-controlled component behavior was lesser for taller buildings.
Reliability-Based Design of Force-Controlled Components in Rocking Steel-Braced Frames
Dastmalchi, Shahrzad (author) / Burton, Henry V. (author)
2020-08-27
Article (Journal)
Electronic Resource
Unknown
Design Concepts for Controlled Rocking of Self-Centering Steel-Braced Frames
| British Library Online Contents | 2014