Analysis on ductility and energy dissipation performance of steel box column-beam irregular joint

2018 International Conference on Civil, Architecture and Disaster Prevention

土木建筑工程

Hu, Zongbo^1^2

Institute of Equipment Management and Support, Engineering University of People's Armed Police Force, Xi'an, Shanxi

710086, China^1

School of Civil Engineering, Institute of Equipment Management and Support, Xi'An University of Architecture and Technology, Xi'an, Shanxi

710055, China^2

关键词: Ductility coefficient;    Energy dissipation capacities;    Failure mechanism;    Mechanical performance;    Quasi-static tests;    Seismic Performance;    Steel box columns;    Ultimate bearing capacity;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/218/1/012046/pdf
DOI  :  10.1088/1755-1315/218/1/012046

学科分类：土木及结构工程学

来源: IOP

【 摘 要 】

Through quasi-static test of six different steel box column-beam irregular joint models, the behaviors including the axial load level and columns stiffness level, the hysteretic curve, failure mechanism were analyzed. Some mechanical performances of steel irregular joint such as ductility, ultimate bearing capacity, energy dissipation were studied. The results indicate that the steel box column-beam irregular joint has good seismic performance and energy dissipation capacity. The ductility coefficient is between 2.02 and 2.66, satisfying the requirements of plastic ultimate deformation. Steel irregular joint has stronger energy dissipation capacity. Energy dissipation in the small core area of panel zone plays key roles in energy dissipation of the specimen. It is helpful for further study of the mechanical performance of the steel box column-beam irregular joint.