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Author

Shin, Myoungsu
Sustainable Structural Systems Lab
Research Interests
  • Seismic design, Tall buildings, High performance composites, Non-destructive evaluation

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Effectiveness of high performance fiber-reinforced cement composites in slender coupling beams

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Title
Effectiveness of high performance fiber-reinforced cement composites in slender coupling beams
Author
Shin, MyoungsuGwon, Seong-WooLee, KihakHan, Sang WhanJo, Yeong Wook
Keywords
Diagonal reinforcement; High performance fiber-reinforced cement composite; Seismic performance; Slender coupling beam
Issue Date
201410
Publisher
ELSEVIER SCI LTD
Citation
CONSTRUCTION AND BUILDING MATERIALS, v.68, no., pp.476 - 490
Abstract
This study aims at exploring the use of high performance fiber-reinforced cement composites (HPFRCCs) as an innovative method of improving the seismic performance of slender coupling beams. Also, the effect of diagonal reinforcement in slender coupling beams is evaluated in comparison to conventional reinforcement. Three 1/2-scale coupling beams having the length-to-depth ratio of 3.5 were tested under cyclic lateral loading up to about 10% drift. The key test variables were material type and reinforcement layout. For the material type, normal concrete and HPFRCC using PVA discrete fibers of 2% volumetric ratio were compared. The mix proportions of the HPFRCC were determined through detailed material tests. Two types of reinforcement layout were tested: conventional and diagonal layout. Furthermore, the strength and stiffness characteristics of reinforced concrete or HPFRCC coupling beams are examined by assembling a database of almost all coupling beam tests available in literature.
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DOI
http://dx.doi.org/10.1016/j.conbuildmat.2014.06.089
ISSN
0950-0618
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