Finite Element Analysis on Static Performance on Combined Truss with Rectangular Steel Tube and Concrete-Filled Steel Tube

Abstract:

Finite element analysis on three trusses was carried out in order to study the performance of combined truss with steel tube and concrete filled steel tube. The first specimen was a RHS truss, the second one was a combined truss with steel tube and concrete filled steel tube, and the third one was a concrete-filled steel tube truss. The results show that the finite element model can reflect the static performance of combined truss and can carry out the affective parameters analysis, which can offer theory evidence for engineering application of combined truss. The damage of three trusses was all due to the joint failure and the failure mode was all punishing shearing failure, but the concrete filled changed by the failure place of joints. The bearing capacity of three trusses was controlled by the jionts and the strength and stiffness of jionts were increased by the concrete filled in the chord, therefore the bearing capacity of trusses was increased while the deformation of trusses was decreased. In combined truss with steel tube and concrete filled steel tube, the concrete-filled steel tube joints can improve the bearing capacity and the steel tube joint can satisfy the requirements of deformation, which have obvious advantages in the engineering application.

• Periodical: Advanced Materials Research (Volumes 311-313)
• Pages: 1889-1893
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.311-313.1889
• Online since: August 2011
• Authors: Ya Wen Du, Hong Yu Lin
• Keywords: Bearing Capacity, Combined Truss, Concrete-Filled Steel Tube (CFST), Failure Mode, Finite Element Analysis (FEA), Static Performance

References

[1] Wardenier J, Hollow sections in structural applications. Australia: John Wiley & Sons, 2001.

[2] Packer J A. Concrete-filled HSS connections[J]. Journal of Structural Engineering, ASCI, 1995,123(3): 458~467.

[3] LIU Yongjian, ZHOU Xuhong, LIU Junping. Behavior of concrete filled rectangular steel tube T-joints and Y-joints under compression[J]. Journal of Chang'an University: Natural Science, 2008, 28(5): 48-52. (in Chinese)

[4] LIU Yongjian, ZHOU Xuhong, LIU Junping. Experiment on force performance of concrete- filled rectangular steel tube K-joints[J]. Journal of Architecture and Civil Engineering, 2007, 24(2): 36-42. (in Chinese)

[5] Di Jin, ZHOU Xuhong, LIU Yongjian.Reaserch on ultimate bearing capacity of concrete-filled rectangular steel tube joints[J]. China journal of highway and transport, 2004, 7(3): 62~67. (in Chinese)

[6] ZHOU Xuhong, LIU Yongjian, MO Tao. Design of trusses with concrete filled rectangular steel tube members[J]. Building Structure, 2004, 34(1): 20-23. (in Chinese)

[7] CECS 159: 2004 Technical specification for structures with concrete-filled rectangular steel tube members[S]. (in Chinese)

[8] CHEN Baochun, HUANG Wenjin. Experimental research on ultimate load carrying capacity of truss girders made with circular tube[J]. Journal of Building Structures, 2006, 28(3): 31-36. (in Chinese)

[9] LI Yunxi. Study on the static behavior of rectangular steel tube truss with concrete-filled compressive chord[J]. Xi'an: Chang'an University, 2008 (in Chinese)

[10] HAN Linhai. Theory and practice on concrete-filled tube structure[M]. Beijing: science press,2004. (in Chinese)