Development of welded overlap core steel encased buckling-restrained braces

Date

2016-12-01

Author

BOZKURT, Mehmet Bakir
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

128
views

0
downloads

This paper reports development of a new type of buckling-restrained brace (BRB) named the welded overlap core steel encased BRB. A two phase experimental research program was undertaken where BRBs were investigated under subassemblage testing. The first phase of the program aimed at studying the performance of steel encased BRBs which utilize constant width core plates. Test results indicated that these braces develop unacceptably high compression and tension resistances and the behaviors of these BRBs under uniaxial testing and subassemblage testing are markedly different. In the second phase of the research program a new type of BRB which utilizes a welded overlap core was developed to improve the cyclic performance observed in the first phase. Experimental results showed that the braces sustain axial strains that vary between 2.0 and 2.5% and resistances in tension and compression were found to improve significantly when compared with the findings of the first phase. Welded overlap core steel encased BRBs were found to sustain cumulative axial strains that are 419 times the yield strain when properly detailed.

Subject Keywords

Buckling restrained brace, Steel, Experimental testing, Energy dissipation, Yielding

URI

https://hdl.handle.net/11511/42200

Journal

JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH

DOI

https://doi.org/10.1016/j.jcsr.2016.07.034

Collections

Department of Civil Engineering, Article

Suggestions

OpenMETU
Core

Replaceable links with direct brace attachments for eccentrically braced frames Bozkurt, Mehmet Bakir; Topkaya, Cem (2017-10-25) This paper reports findings of an experimental study conducted on replaceable links for steel eccentrically braced frames (EBFs). A replaceable link detail which is based on splicing the directly connected braces and the beam outside the link is proposed. This detail eliminates the need to use hydraulic jacks and flame cutting operations for replacement purposes. Performance of this proposed replaceable link was studied by conducting eight nearly full-scale EBF tests under quasi-static cyclic loading. The l...
Development of H-shaped hysteretic dampers for steel concentrically braced frames Dursun, Süleyman Eren; Topkaya, Cem (2023-03-01) A new type of hysteretic damper, which can easily be mounted at the ends of I-section braces in concentrically braced frames (CBFs), is proposed in this paper. The main goal is to develop a damper which would enable the I-section brace and damper system to perform in a manner similar to a buckling restrained brace (BRB). The proposed cost-effective damper is composed of standard rolled H-sections and plates. Energy is dissipated by the plastic hinges that form in the webs of the H-sections. Experimental and...
Development of a new rubber seismic isolator: 'Ball Rubber Bearing (BRB)' Özkaya, Cenan; Akyüz, Uğurhan; Caner, Alp; Dicleli, Murat; Pinarbasi, S. (Wiley, 2011-10-01) This paper presents an experimental research aimed at developing a new rubber-based seismic isolator called 'Ball Rubber Bearing (BRB)'. The BRB is composed of a conventional steel-reinforced multi-layered rubber bearing with its central hole filled with small diameter steel balls that are used to provide energy dissipation capacity through friction. A large set of BRBs with different geometrical and material properties are manufactured and tested under reversed cyclic horizontal loading at different vertic...
Numerical investigation of stiffened composite panel into buckling and post buckling under combined loading Akay, Erkan; Yaman, Yavuz; Department of Aerospace Engineering (2015) This thesis presents the investigation of buckling and post buckling behaviour of stiffened thin walled laminated composite aerospace structures subjected to combined in-plane axial and shear loadings. Due to the fact that the state of stress developing especially in the post-buckling stage is quite complicated under the combined loading, the necessary computational model is usually based on Finite Element Modelling (FEM). In this study, after verifying the FEM methodology and completing the sensitivity stu...
Comparative seismic behavior assessment of a new damper-equipped and conventional chevron-braced frames Milani, Ali Salem; Dicleli, Murat (2023-02-01) This paper presents the results of experimental studies performed on three 1/3-scale steel building frames for comparative assessment of the cyclic behavior of a Chevron frame equipped with a newly-developed damper, THDF (Torsional Hysteretic Damper for Frames) in relation to a Chevron special concentrically braced frame (SCBF) and an eccentrically braced frame with a vertical H-link. THDF is a damper with a displacement-dependent post-elastic stiffness, developed for Chevron frames. First, the SCBF was des...

Citation Formats

M. B. BOZKURT and C. Topkaya, “Development of welded overlap core steel encased buckling-restrained braces,” JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH, pp. 151–164, 2016, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/42200.