Study on slippage failure mechanism of horizontal seams in prefabricated columns
Deng Ai1,2 Xiong Feng1,2 Wang Pan3 Chen Jiang1,2 Feng Bo1,2
1. College of Architecture and Environment, Sichuan University, Chengdu 610065, China;
2. Key Laboratory of Deep Underground Science and Engineering of the Ministry of Education, Sichuan University, Chengdu 610065, China;
3. China Southwest Architecture Design and Research Institute Co., Ltd., Chengdu 610042, China
Based on the calculation methods for the shear capacity of horizontal seam in Chinese and Japanese codes, the bearing capacity for a total of 96 specimens with six sections, four different shear span and four axial compression ratio respectively is analyzed. . Improved design equations for calculating shear strength of the horizontal seam are proposed, whose effectiveness is validated by the numerical simulation with ABAQUS software. The results show that under small axial load ratios, such as 0.1, the shear slippage failure along the horizontal seam will occur at the bottom of the column. The shear capacity equations for the horizontal seam shows that the shear failure may not happen, and the actual results are quite different from the calculated ones. The accuracy of the Chinese Code for calculating the shear capacity of horizontal seam should be further studied. The calculation of the shear capacity of horizontal seams by the proposed equations are in good agreement with the numerical results, thus the effectiveness of the proposed equations are validated.
邓 艾 熊 峰 王 盼 陈 江 冯 波. 预制柱水平缝滑移破坏机理研究[J]. 土木工程学报, 2018, 51(11): 24-31.
Deng Ai Xiong Feng Wang Pan Chen Jiang Feng Bo. Study on slippage failure mechanism of horizontal seams in prefabricated columns. 土木工程学报, 2018, 51(11): 24-31.
