EXPERIMENTAL STUDY ON BUCKLING-RESTRAINED BRACES USING STEEL MORTAR PLANKS : Part 4 Effects on core plate width-thickness ratio, restraining force and cross section details

Murase, Ryo; Murai, Masatoshi; Iwata, Mamoru

doi:10.3130/aijs.72.117_2

Cited by 17 publications

(4 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The clearance is measured from the outer perimeter of the restraining part after assembling riods and long durations. A higher-order buckling mode occurring in the core plate is influenced by clearance, core plate width-to-thickness ratio, slenderness ratio and restraining index [14,15]. For this clearance adjustment of the BRBSM, a construction method has been adopted where a clearance adjustment material (butyl rubber) is attached to the entire surface of the core plate.…”

Section: 2mentioning

confidence: 99%

“…4 were fabricated to confirm that the specified clearance ratio can be assured by the clearance adjustment construction described above. The clearance ratio described in section 3.1 is set to 4-20 % based on previous research [13][14][15] where the clearance adjustment materials were applied to the entire surface of the core plate. For all the specimens, butyl rubber (1 × 100 × 30 mm) was attached to both sides of the core plate as the clearance adjustment material.…”

Section: Verification Of Clearance Adjustment Constructionmentioning

confidence: 99%

See 1 more Smart Citation

Effects of the clearance between the core plate and restraining part on the structural performance of the buckling‐restrained brace using steel mortar planks

et al. 2022

Self Cite

View full text Add to dashboard Cite

The clearance between the core plate and the restraining part of the buckling-restrained brace using steel mortar planks (BRBSM) considerably affects the failure mode and hysteretic characteristics of the brace. A clearance adjustment construction is proposed for the BRBSM which can control the clearance through partially pasting clearance adjustment materials and polishing the mortar plank surface. First, the clearance adjustment construction workflow and quality control are demonstrated, and it is verified that the clearance can be assured by fabricating specimens. Further, the effects of the difference in clearance between the core plate and restraining part on the structural performance of the BRBSM in terms of failure behaviour, increase strength ratio, buckling mode and cumu lative plastic strain energy ratio are evaluated by conducting a cyclic axial loading test.

show abstract

Section: 2mentioning

confidence: 99%

Section: Verification Of Clearance Adjustment Constructionmentioning

confidence: 99%

Effects of the clearance between the core plate and restraining part on the structural performance of the buckling‐restrained brace using steel mortar planks

et al. 2022

Self Cite

View full text Add to dashboard Cite

show abstract

“…3(a)] is a crucial parameter affecting the structural performance of the BRBSM. The smaller the clearance is, the larger the cumulative plastic strain energy ratio ω becomes [3] . However, an excessively small clearance causes contact between the core plate and restraining material due to the influence of Poisson's ratio wherein the restraining material also supports compressive force, causing the α value to increase.…”

Section: Clearance Quality Control Valuementioning

confidence: 99%

“…Based on past studies [1,3,4] , the maximum value of the clearance ratio, 15%, is determined as the upper limit of the quality control value.…”

Section: Clearance Quality Control Valuementioning

confidence: 99%

Verification of Clearance and Gap for Fabricating the Buckling-Restrained Brace Using Steel Mortar Planks

Koyano

Fujita²,

Iwata

2018

KEM

View full text Add to dashboard Cite

The buckling-restrained brace must be able to provide the designed structural performance in actual use. In other words, the buckling-restrained brace must retain its initial quality in during the fabricating process. In this study, for the purpose of ensuring the initial quality of the buckling-restrained brace using steel mortar planks (BRBSM), quality control values at the time of fabrication are set and conduct verification testing on clearance and gap.

show abstract

Buckling‐restrained brace with high structural performance

2018

View full text Add to dashboard Cite

The authors have studied the buckling‐restrained brace providing a stable hysteretic characteristic even under high‐strain conditions. The structural performance of the buckling‐restrained brace is represented by the evaluation formula that is the lower limit of the cumulative plastic strain energy ratio. However, as earthquakes are becoming much longer, so it is necessary to research and develop a new buckling‐restrained brace with a higher energy dissipation capacity. In this paper, our past studies are reviewed and the conditions of high‐performance of buckling‐restrained braces extracted. The buckling‐restrained brace considered was tested. As a result, a buckling‐restrained brace with a larger cumulative plastic strain energy ratio is proposed.

show abstract

EXPERIMENTAL STUDY ON BUCKLING-RESTRAINED BRACES USING STEEL MORTAR PLANKS : Part 4 Effects on core plate width-thickness ratio, restraining force and cross section details

Cited by 17 publications

References 1 publication

Effects of the clearance between the core plate and restraining part on the structural performance of the buckling‐restrained brace using steel mortar planks

Effects of the clearance between the core plate and restraining part on the structural performance of the buckling‐restrained brace using steel mortar planks

Verification of Clearance and Gap for Fabricating the Buckling-Restrained Brace Using Steel Mortar Planks

Buckling‐restrained brace with high structural performance

Contact Info

Product

Resources

About