Buckling mechanism and global stability design method of buckling-restrained braces

Wu, Bin; Lu, Jun; Mei, Yang; Zhang, Jian

doi:10.1016/j.jcsr.2017.07.023

Cited by 13 publications

(2 citation statements)

References 19 publications

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“…According to the working principles of BRBs, 21–26 the ideal state is that the restrained parts do not bear the axial forces. Therefore, a suitable air gap or lubricating material should exist between the core member and the GFRP restrained tubes.…”

Section: Triple-tube Gfrp-steel Brbmentioning

confidence: 99%

Pseudo-static tests and numerical investigations of triple-tube glass fiber–reinforced polymer and steel buckling-restrained braces

Wang

Zhang

et al. 2020

Advances in Mechanical Engineering

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Long-span spatial structures are typical city landmarks. Earthquakes can cause serious damage to these structures, leading to tremendous human injury and financial loss. Therefore, it is essential to develop effective devices to enhance the performance of spatial structures. This article proposes a new triple-tube glass fiber–reinforced polymer and steel buckling-restrained brace device for reticulated shells, which integrates the light weight and high strength advantages of the composite materials. Specimens of scaled glass fiber–reinforced polymer and steel buckling-restrained braces were designed and produced, and pseudo-static tests were performed on these specimens with an MTS machine. Mechanical performance and damages were examined and compared. An elaborate finite-element model was setup, and the accuracy of this model was verified with the test data. In addition, the model was used to investigate the effect of the Pe/ Py ratio on the performance of full-scale triple-tube glass fiber–reinforced polymer and steel buckling-restrained brace devices. Finally, the lower limit of the Pe/ Py ratio for this kind of buckling-restrained brace was obtained by theoretical derivation and numerical parametric analysis.

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Section: Triple-tube Gfrp-steel Brbmentioning

confidence: 99%

Pseudo-static tests and numerical investigations of triple-tube glass fiber–reinforced polymer and steel buckling-restrained braces

Wang

Zhang

et al. 2020

Advances in Mechanical Engineering

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“…The key influencing factors on the flexural demand on both of stiffening part and restraining member for the pin-connected BRBs were recently studied by Zhao et al [5]. The stability design criteria of BRBs considering the stiffening segment of the inner core were proposed by Wu et al [6,7]. Tremblay et al [8] validated that the rotation of joint panel would raise the bending moment demand on the restraining member of BRBs by a series of substructure testing.…”

Section: Introductionmentioning

confidence: 99%

Local Buckling Behavior of Buckling-Restrained Braces with Longitudinally Profiled Steel Core

Liu

Ding

et al. 2021

Crystals

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One of the most important requirements for a well-designed buckling restrained brace (BRB) under severe earthquake loading is to ensure its stability until the brace achieves sufficient elasto-plastic deformation. This study presents the finite element analysis results of the proposed buckling restrained brace with a longitudinally profiled steel core (LPBRB). The objective of the analyses is to conduct a performance evaluation of the proposed LPBRBs, and to perform a parameter study with different clearance, width:thickness ratio, mortar strength, and friction coefficient for investigating the local buckling behavior of the LPBRBs. Numerical analyses results demonstrate that the LPBRBs exhibited good ductile performance and stable hysteretic behavior. The local buckling failure can be predicted by the demand:capacity ratio formula. The friction coefficient has little influence on the hysteretic behavior of LPBRBs. The local stability can be improved by adopting the mortar with higher compression strength or the LP core with lower width:thickness ratio. The proposed LPBRBs have a similar hysteretic response to the conventional BRBs.

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Modeling of Buckling Restrained Braces (BRBs) using Full-Scale Experimental Data

2019

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Buckling mechanism and global stability design method of buckling-restrained braces

Cited by 13 publications

References 19 publications

Pseudo-static tests and numerical investigations of triple-tube glass fiber–reinforced polymer and steel buckling-restrained braces

Pseudo-static tests and numerical investigations of triple-tube glass fiber–reinforced polymer and steel buckling-restrained braces

Local Buckling Behavior of Buckling-Restrained Braces with Longitudinally Profiled Steel Core

Modeling of Buckling Restrained Braces (BRBs) using Full-Scale Experimental Data

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