Analysis of Stress Concentration Factor on Concrete-filled Rectangular Steel Tube T-joints Stiffened with PBL(PDF)
《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]
- Issue:
- 2014年04期
- Page:
- 74-79
- Research Field:
- Publishing date:
Info
- Title:
- Analysis of Stress Concentration Factor on Concrete-filled Rectangular Steel Tube T-joints Stiffened with PBL
- Author(s):
- CHENG Gao; LIU Yong-jian; QIU Jie-lin; LUO Ya-lin; YU Wen-long
- School of Highway, Chang’an University
- Keywords:
- concrete-filled rectangular steel tube; T-joint; PBL; stress concentration factor; nonlinear finite element analysis
- PACS:
- -
- DOI:
- -
- Abstract:
- The stress concentration factor of concretefilled rectangular steel tube T-joints stiffened with PBL subjected to tension, inplane bending moment and outofplane bending moment were analyzed. Based on concretefilled rectangular steel tube T-joints test, specimens whose chord members were rectangular steel tube, concrete-filled rectangular steel tube and concretefilled rectangular steel tube stiffened with PBL were designed. Moreover, nonlinear finite element analysis was carried out using ABAQUS software. The chord thickness ratio was 27 and width ratio was 0.4. Hot spot was analyzed by finite element analysis method, and stress concentration factor was calculated by quadratic extrapolation. The results show that hot spot of concrete-filled rectangular steel tube T-joints stiffened with PBL is the same as steel tube T-joints; however, its stress concentration factor is lower and anti-fatigue property is better.
Last Update: 2014-12-18