Cyclic Behaviour of HPFRCC Coupling Beams with Diagonal Reinforcement

Abstract

Coupled shear walls are efficient in resisting lateral forces induced by winds and earthquakes. However, it is difficult to construct coupled shear walls particularly because current design codes require complex reinforcing details within coupling beams. The objective of this study was to investigate the cyclic behaviour of HPFRCC (high performance fiber reinforced cement composites) diagonally reinforced concrete (DRC) slender coupling beams. For this purpose, HPFRCC and conventional reinforce concrete DRC coupling beams were made and tested. This experimental study shows that HPFRRCC DRC coupling produced better seismic behaviour than corresponding conventional DRC beams.