Title:
Simplified Moment-Rotation Relationship for Plastic Hinge of Coupling Beams
Author(s):
Hyeon Jong Hwang
Publication:
Web Session
Volume:
ws_F23_HyeonJongHwang.pdf
Issue:
Appears on pages(s):
Keywords:
DOI:
Date:
10/29/2023
Abstract:
For performance-based design of coupling beams, deformation capacity needs to be accurately defined. This study proposed a simplified moment-rotation relationship for plastic hinges of coupling beams, addressing shear strength degradation due to diagonal strut and truss mechanisms. The effects of the target chord rotation, longitudinal rebar ratio, length-to-height ratio, ratio and details of transverse reinforcement, distributed longitudinal web bars, and diagonal bars were considered. The predicted moment-rotation relationships generally agreed with the existing coupling beam test results.