Performance comparison of BRBFs designed using different response modification factors

Date

2020-12-15

Author

Güner, Tuğberk
Topkaya, Cem

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

333
views

0
downloads

This paper presents details of the numerical examination and performance comparison of steel buckling restrained braced frames (BRBFs) designed with different response modification factors, using the next-generation performance assessment approach. Archetypal BRBF designs were conducted following the US provisions and considering response factors equal to or less than the codified limit. The archetypical buildings were subjected to ground-motions acquired from the FEMA P695 Far-Field record-set and scaled to MCE and DBE intensity levels. The FEMA P-58 performance assessment procedure was used to evaluate the results. The interstory drift ratio, residual interstory drift ratio, and peak story acceleration demands were determined and converted to performance quantities by using the Performance Assessment Calculation Tool (PACT). The repair time, probabilistic distribution of repair cost, unsafe placard probabilities, and irreparable residual drift probabilities were obtained, and a comparative study of response modification factors in terms of these results was conducted. The results show that designs with higher response factors result in higher repair costs, due to the damage of drift sensitive components and high residual drifts. On the other hand, BRBFs designed with lower response factors were found to experience higher accelerations, which result in an increase in the repair cost for acceleration sensitive components. An ideal response factor is proposed herein based on the consequence measures. The study was complemented by investigating the behavior of self-centering BRBFs and comparing their performance with those of conventional BRBFs.

Subject Keywords

Civil and structural engineering, Buckling restrained braced frames, Response modification factor, Next-generation performance assessment, FEMA P-58, Self-centering

URI

https://hdl.handle.net/11511/38422

Journal

Engineering Structures

DOI

https://doi.org/10.1016/j.engstruct.2020.111281

Collections

Department of Civil Engineering, Article

Suggestions

OpenMETU
Core

Performance comparison of brbfs designed using different response modification factors Güner, Tuğberk; Topkaya, Cem; Department of Civil Engineering (2020-9) In this study, buckling restrained braced frames (BRBFs) designed with various response modification factors were examined by numerical analysis and their performances were compared using the next-generation performance assessment approach. Three, six, and nine-story archetypes (low to medium-rise) with response modification factors in the range of 1 to 8 were designed using ASCE7-16, AISC 341-16, and AISC 360-16 specifications. A total of 24 archetypes were analyzed using nonlinear dynamic analysis procedu...
Dynamic characteristics and performance assessment of reinforced concrete structural walls Kazaz, İlker; Gülkan, Polat; Department of Civil Engineering (2010) The analytical tools used in displacement based design and assessment procedures require accurate strain limits to define the performance levels. Additionally, recently proposed changes to modeling and acceptance criteria in seismic regulations for both flexure and shear dominated reinforced concrete structural walls proves that a comprehensive study is required for improved limit state definitions and their corresponding values. This is due to limitations in the experimental setups, such that most previous...
Load rating of concrete-deck-on-steel-stringer bridges using field-calibrated 2D-grid models Türer, Ahmet (Elsevier BV, 2011-04-01) This paper presents and discusses issues related to structural identification, calibrated model-based load rating, and sensitivity of rating to the analytical model, along with experimental studies conducted on an existing concrete-deck-on-steel-stringer bridge. The proposed model-updating procedure uses collected dynamic data (mode shapes, modal frequencies, and order of modes) as well as static deformed shape information. Two-dimensional (2D) grid models were developed to successfully simulate the transve...
Lifetime Performance Analysis of Existing Reinforced Concrete Bridges. I: Theory Akgül, Ferhat (American Society of Civil Engineers (ASCE), 2005-06-01) In this first part of a two-part paper, a general methodology for lifetime performance analysis of existing reinforced concrete bridges is presented. The framework for the methodology is established by identifying four distinct categories: limit state equations, random variables, deterministic parameters, and constant coefficients. The limit state equations are derived by strictly adhering to the load and capacity formulas and requirements set forth in AASHTO specifications. Generality is pursued by establi...
Guided stochastic search technique for discrete sizing optimization of steel trusses: A design-driven heuristic approach Azad, S. Kazemzadeh; Hasançebi, Oğuzhan; Saka, M. P. (Elsevier BV, 2014-04-01) This study presents a design-driven heuristic approach named guided stochastic search (GSS) technique for discrete sizing optimization of steel trusses. The method works on the basis of guiding the optimization process using the well-known principle of virtual work as well as the information collected during the structural analysis and design stages. The performance of the proposed technique is investigated through a benchmark truss instance as well as four real-size trusses sized for minimum weight accordi...

Citation Formats

T. Güner and C. Topkaya, “Performance comparison of BRBFs designed using different response modification factors,” Engineering Structures, pp. 0–0, 2020, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/38422.