Evaluation Of Buckling Mode Number And Compression-To-Tension Strength Ratio Of Buckling-Restrained Braces

Midorikawa, Mitsumasa; Iwata, Mamoru; Tanaka, Yasutaka; Murai, Masatoshi; Asari, Tetsuhiro

doi:10.3850/978-981-07-5354-2_st-155-473

Cited by 5 publications

(4 citation statements)

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“…In Aguaguiña et al. [1], a total of 35 BRB specimens were selected from 16 experimental investigations and tests published between 2002 and 2018 [21,[24], [25], [26], [27], [28], [29], [30], [31], [32], [33], [34], [35], [36], [37], [38], [39], [40], [41]]. These tests were conducted in the United States (2), Hungary (1), Turkey (1), China (3), Taiwan (2), Japan (5), and Canada (2).…”

Section: Experimental Design Materials and Methodsmentioning

confidence: 99%

“…[37]Type WSMPsJP-IwataJIS SN400B0.2770.1391568.0945.0434.31.31Midorikawa et al. [38]L650SSMPsJP-IwataJIS SN400B0.2810.1411584.02218.0445.13.12L850SSMPsJP-IwataJIS SN400B0.2810.1411584.02925.0445.14.11Takeuchi et al. [39,40]CY110M15Typ.JP-TakeuchiLY2250.2570.1252080.01000.0534.61.25CY138M15Typ.JP-TakeuchiLY2250.2570.1252080.01000.0534.61.25 Canada Tremblay et al.…”

Section: Datamentioning

confidence: 99%

“…[37]Type W0.5028.954675.6827.014.471498.9881.417.358180.5725.00.6023.844561.6624.411.957579.7665.314.346965.0547.7Midorikawa et al. [38]L650S0.5028.553775.5697.514.270398.8782.217.157280.4641.50.6023.543861.5536.511.756679.5600.514.146164.8493.0L850S0.5028.553775.5695.814.270398.8783.017.157280.4642.10.6023.543861.5535.911.756679.5601.414.146164.8493.8Takeuchi et al. [39,40]CY110M150.5031.960676.0845.216.0797100.0929.919.164881.3763.20.6026.349462.0645.313.264480.7709.715.852465.7583.1CY138M150.5031.960676.0845.216.0797100.0929.919.164881.3763.20.6026.349462.0645.313.264480.7…”

Section: Datamentioning

confidence: 99%

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Data supporting the development of loading protocols for seismic qualification of BRBs considering global performance requirements

Aguaguiña

Zhou

2020

Data in Brief

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The data presented in this article constitute a supplementary material and provide support to the study “Loading protocols for qualification testing of BRBs considering global performance requirements” by Aguaguiña et al. [1]. Three types of datasets are given herein mainly in the form of tables. The first two correspond to databases built based on a compilation of past experimental testing on buckling-restrained braces (BRBs), conducted in different parts of the world. Two distinct objectives motivated such data compilation: (1) to determine a practical range for the parameter named as Yield Length Ratio (YLR), from full-scale and large-scale buckling-restrained braced frame (BRBF) specimens, that allowed for evaluation of the maximum deformation demands of BRBs [1]; and (2) to extract information on the properties of BRB specimens of different types, materials, and origin, for calibration of a numerical model that enabled the simulations of quasi-static cyclic tests of BRBs under five different code-prescribed loading histories (US, EU, CN, JP, and CA) and two proposed global loading protocols (GLP-1 and GLP-2) [1]. The last dataset type corresponds to the results of these numerical simulations, which were conducted using the OpenSees platform. The results show the maximum ductility demand (μmax), cumulative inelastic deformation, in terms of cumulative plastic ductility (CPD) and cumulative plastic strain (CPS), and cumulative hysteretic energy (Ēh) of BRBs as a result of the application of each loading sequence, and they are tabulated by BRB specimen.

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Section: Experimental Design Materials and Methodsmentioning

confidence: 99%

Section: Datamentioning

confidence: 99%

Section: Datamentioning

confidence: 99%

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Data supporting the development of loading protocols for seismic qualification of BRBs considering global performance requirements

Aguaguiña

Zhou

2020

Data in Brief

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“…Besides, it is considered that the part of the segment cross section is unloaded in elastic manner. Equivalent flexural modulus, E r , calculated from double modulus theory is adopted herein to take the loading and unloading response into account. The equivalent flexural stiffness of the segment can be calculated as

E_{r} = \frac{E_{t} I_{1} + {EI}_{2}}{I_{italicse}},

where I 1 and I 2 , respectively, represent the moment inertia of the loading and unloading part bounded by the neutral axis of the segment cross section.…”

Section: Design Parameters For Bed's Segmentmentioning

confidence: 99%

Concept and performance testing of an aluminum alloy bamboo‐shaped energy dissipater

Wang

Liu

Zhou

et al. 2017

Structural Design Tall Build

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Energy dissipaters constructed in precast structures play an important fuse-type role in concentrating damage and protecting the primary structure. The stable tensile and compressive deformation capacity, easier fabrication method, and relatively lower cost are expected in energy dissipater to further enrich its practical application. In this paper, a new bamboo-shaped fuse-type energy dissipater consisting of an inner bamboo-shaped core with slubs and an outer circular tube was developed with high-precision, all-metal machining, avoiding the adverse effect of grouting and welding. The aluminum alloy was applied to fabricate the proposed energy dissipater to improve the durability. A series of tests, containing 12 specimens, was performed to address the low-cycle fatigue behavior of bamboo-shaped dissipaters, and stable hysteretic curves were obtained without any local and overall buckling. The deformation of the core was evidently affected by slubs, which were restrained by the outer tube. Furthermore, parametric studies on design variables including length of segments, the length of slubs, the number of segments, and the size of gap between the slub and the tube are performed. On the basis of test results of all specimens, aluminum alloy bamboo-shaped dissipaters show a promising future for wide application in new or retrofitted buildings, which require excellent seismic behavior and durability. KEYWORDS aluminum alloy, bamboo-shaped, energy dissipaters, low-cycle fatigue 1 | INTRODUCTION In China, structural engineers' attention has been drawn to the structural vibration control after the destructive 2008 WenChuan and 2010 YuShu earthquakes, especially to the improvement of the structural performance using energy dissipation devices. During a moderate or severe earthquake, energy dissipation devices acting as ductile fuses are expected to concentrate the structural damage in the devices, which provide the protection for the primary structure and the possibility of structural resilience. For example, buckling-restrained brace (BRB), a type of metal energy dissipation device, exhibits extremely stable hysteretic behavior through inelastic deformation. A typical BRB consists of an inner component and an outer restraining component, where the former bears axial forces and the latter prevents the buckling of the former. There are many behavior investigations and system applications of BRBs, which proves that the implementation of BRBs in both building [1,2] and bridge engineering [3] is of real use. To deepen the understanding of the working mechanism of BRBs, the effects of weld of the rib, [4] stopper, [5] unbonding material, [6] and local torsional buckling [7] on the low-cycle fatigue performance of BRB were carefully investigated and analyzed. All achievements obtained in working mechanism of BRB are available in developing the new all-metal BRB.The precast concrete structures have been paid wide attention and strongly favored by government policies in China. In terms of improving the energy dissipation capaci...

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Proposal and application of structural soundness monitoring system for the buckling‐restrained brace using steel mortar planks

et al. 2023

Self Cite

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A structural soundness monitoring system for building steel structures is effective for a quick inspection just after large earthquakes. A damage‐controlled structure can be monitored effectively because damage is strictly concentrated in energy‐absorbed members, and that, in this case, the physical quantity suitable for monitoring is displacements of those energy absorbed members. Buckling‐restrained braces (also, the BRB using steel mortar planks, BRBSM), one of the energy‐absorption members, can be directly monitored by the monitoring sensor; it will be possible to quickly evaluate the extent of damage and make a prompt decision on the replacement. Focusing on functionality of a structural soundness monitoring system, a damage evaluation method of the BRB using steel mortar planks and its corresponding monitoring system are verified conducting by a cyclic loading test. It is demonstrated that the cumulative plastic strain energy can be estimated approximately using this system, and this system is adapted to a mid‐rise steel building.

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Evaluation Of Buckling Mode Number And Compression-To-Tension Strength Ratio Of Buckling-Restrained Braces

Cited by 5 publications

References 0 publications

Data supporting the development of loading protocols for seismic qualification of BRBs considering global performance requirements

Data supporting the development of loading protocols for seismic qualification of BRBs considering global performance requirements

Concept and performance testing of an aluminum alloy bamboo‐shaped energy dissipater

Proposal and application of structural soundness monitoring system for the buckling‐restrained brace using steel mortar planks

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