Performance comparison of brbfs designed using different response modification factors

Download

12625610.pdf

Date

2020-9

Author

Güner, Tuğberk

Metadata

Show full item record

Item Usage Stats

262
views

156
downloads

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 procedures by subjecting them to both MCE and DBE level ground motions. The ground motion histories were acquired from the FEMA P-695 Far-Field record-set and scaled according to the requirements of the FEMA P-695 methodology. FEMA P-58 methodology was utilized to assess performance. For performance evaluation; peak and residual interstory drift ratios and peak story accelerations were determined and converted to performance quantification values by using the Performance Assessment Calculation Tool (PACT), which is supplied as a part of FEMA P-58 methodology. The probabilistic distributions of repair cost and repair time, unsafe placard probability, and irreparable residual drift probability were obtained, and a comparative study of response modification factors in terms of these results was conducted. The results showed that designing BRBFs using lower response factors increases post-earthquake performance until the point where acceleration governed nonstructural damages surpass the structural damages. 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

Buckling Restrained Braced Frames, Response Modification Factor, Next-Generation Performance Assessment, Fema P-58, Self-Centering

URI

https://hdl.handle.net/11511/68990

Collections

Graduate School of Natural and Applied Sciences, Thesis

Suggestions

OpenMETU
Core

Performance comparison of BRBFs designed using different response modification factors Güner, Tuğberk; Topkaya, Cem (Elsevier BV, 2020-12-15) 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 t...
Performance comparisons of seismic assessment methods with PSD test results of a deficient RC frame Ozcebe, G.; KURT, ELİF; Binici, Barış; Kurç, Özgür; Canbay, Erdem; Akpinar, U. (2009-12-01) The accuracy of estimating the performance levels of a deficient RC frame using linear elastic and nonlinear dynamic analysis is evaluated in this study. This was achieved by comparing the response of a structure tested with pseudo-dynamic testing and estimated by the linear elastic assessment procedures along with nonlinear dynamic analysis. The test structure (three bay-two storey planar frame) is a 1/2 scale reinforced concrete frame having masonry infill walls in the central span. The test frame contain...
Mechanical performance of composite flat specimens and pressure vessels produced by carbon/epoxy towpreg dry winding Okten, Yigit Kemal; Kaynak, Cevdet (2022-10-01) The main purpose of this study is to evaluate the effects of certain processing parameters on the mechanical performance of carbon/epoxy towpreg wound composite structures. For this purpose, composite sample productions and their evaluations were conducted in two steps. In the first step, dry winding of carbon/epoxy towpregs was used to produce flat composite plates. Their evaluation was performed by rheological analysis, interlaminar shear tests, and unidirectional tensile tests. In the second step, towpre...
Numerical studies on eccentrically braced frames Kuşyılmaz, Ahmet; Topkaya, Cem; Sarıtaş, Afşin; Department of Civil Engineering (2014) Numerical studies were performed on eccentrically steel braced frames to ascertain seismic performance factors and to examine dynamic characteristics of eccentrically braced frames (EBF). Pursuant to this goal a computer program which facilitates EBF designs was developed. In the first phase, the approximate period formula given in ASCE7-10 was evaluated and a technique based on global deformation characteristics was developed to improve the fundamental period estimates for EBFs. The results indicate that t...
Performance comparison of the 3D-printed and injection-molded PLA and its elastomer blend and fiber composites Kaynak, Cevdet (2019-04-01) The purpose of this study was to compare the performance of polylactide (PLA)-based materials shaped by the traditional injection molding technique versus three-dimensional (3D)-printing additive manufacturing. Comparisons were performed not only for neat PLA but also for its thermoplastic polyurethane elastomer (TPU) blend and for its E-glass fiber (GF)-reinforced composites. Performance comparison of the injection-molded and 3D-printed specimens was especially conducted to compare their mechanical propert...

Citation Formats

T. Güner, “Performance comparison of brbfs designed using different response modification factors,” M.S. - Master of Science, Middle East Technical University, 2020.