The Influence on Horizontal Ties of Steel Coupling Beams

Abstract

Hybrid coupled shear wall system with steel coupling beams has known as the effective lateral load resisting system for tall buildings subjected to earthquake. This paper addresses the influence on horizontal ties of steel coupling beams in pseudo strain hardening cementitious composite (PSH2C) hybrid coupled shear wall. Test variables included the connection detail and types of material, concrete and PSH2C, in the connection region. The results show that Specimen PSH2C-SB and PSH2C-SBVRT exhibits a better stable behavior than Specimens HCWS-SB and HCWS-SBVRT.

The Seismic Behavior of Pseudo Strain-Hardening Cemetitious Composites Coupling Beams with Polyvinyl Alcohol Fiber

“…It showed that the contribution of strength by PSH2C material was estimated based on the diagonal tension strength provided by the fibers bridging a diagonal cracks spanning from one corner of the coupling beam to the other corner. Based on the observation of the previous test results [5], the strength margin between specimen PSH2C-SBVRT and PSH2C-SCF or PSH2C-FCF is very minor.…”

“…These three specimens have different reinforcement details. Specimen PSH2C-SBVRT, the part of these specimens, were already tested and listed in companion paper [5]. In order to investigate seismic behavior, the span-to-depth ratio of each specimen is 1.0, 1.5 and 2.0, respectively.…”

Hysteretic Behavior of Reinforced Concrete Coupling Beams with Diagonal Headed-Bars

“…Diagonally reinforced coupling beams have higher ductility than conventionally reinforced coupling beams. Many researchers [1][2][3][4][5][6] states that diagonal reinforcement is most effective in coupling beams with span-to-depth ratios of 1.5 or less. However, these diagonal reinforcements can lead to construction difficulties because of the congestion of steel reinforcement, particularly in the connection regions between the coupling beam and the shear wall.…”

Stud Bolt Effects on the Bearing Performance of Pseudo Strain-Hardening Cementitious Composite (PSH2C) Wall-Steel Coupling Beam Connections

“…The development of pseudo strain-hardening cementitious composite (PSH2C) materials that exhibit strain-hardening behavior and multiple cracks in direct tension has opened a new range of structural applications such as coupled shear wall, connections, dampers, beam-column joints, and column subjected to seismic loads [1]. Park and Yun [2,3] showed that PSH2C coupling beams have a much more efficient resistance capacity against earthquake damage than the normal concrete coupling beam with conventional or diagonal reinforcement details. However, a number of studies have focused on investigating the seismic performance of single critical members such as column, shear wall, and coupling beam using PSH2C.…”