Open AccessExperimental investigation on torsional behavior of composite beams reinforced with two-piece enclosed stirrups
Author(s) -
Zhang Zhi,
Qing Wang,
Feng Li
Publication year - 2017
Publication title -
modular and offsite construction (moc) summit proceedings
Language(s) - English
Resource type - Journals
ISSN - 2562-5438
DOI - 10.29173/mocs59
Subject(s) - reinforced concrete , structural engineering , materials science , composite number , torque , stirrup , beam (structure) , composite material , engineering , physics , thermodynamics
This paper presents an investigation of the torsional behavior of reinforced concrete (RC) beams which were cast twice and reinforced with two-piece enclosed stirrups. Their torsional behavior was compared with those of monolithically cast RC beams with conventional stirrups using a customized test setup. The test program was divided into two groups to distinguish different influencing factors. Results from the first test group indicated that the maximum torques of monolithically cast beams reinforced with two-piece enclosed stirrups decreased by an average of 3.7% compared to those reinforced with conventional stirrups. The second test group revealed that the maximum torques of composite beams increased by 6.7% compared to those of monolithically cast beams. As a whole, minor differences in the maximum torques and deformation capacities were found between composite beams reinforced with two-piece enclosed stirrups and monolithically cast beams reinforced with conventional stirrups.