Application of HPFRCC on Coupling Beams with Bundled Diagonal Reinforcement

2018 3rd International Conference on Building Materials and Construction

土木建筑工程

Han, S.W.^1 ; Lee, C.S.^1 ; Lee, K.H.^1 ; Shin, M.S.^2

Department of Architectural Engineering, Hanyang University, Seoul, Korea, Republic of^1

School of Urban and Environmental Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, Korea, Republic of^2

关键词: Coupling beam;    High performance fiber reinforced cementitious composites;    Lateral displacements;    Ordinary concretes;    Seismic code;    Seismic Performance;    Transverse reinforcement;    Transverse steel;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/371/1/012034/pdf
DOI  :  10.1088/1757-899X/371/1/012034

学科分类：土木及结构工程学

来源: IOP

【 摘 要 】

The objective of this study was to develop simple reinforcement details for diagonally reinforced coupling beams; reducing transverse steel by use of high-performance fiber-reinforced cementitious composites (HPFRCCs) and bundling diagonal bars are explored. Four coupling beam specimens with length-to-depth aspect ratios of 2.0 or 3.5 were fabricated and tested under cyclic lateral displacements. The test results revealed that HPFRCC coupling beams with bundled diagonal bars and widely spaced transverse reinforcement (one-half the amount of reinforcement required by current seismic codes.) exhibited excellent seismic performance compared with ordinary concrete coupling beams to bundled diagonal bars and code-required transverse reinforcement.