A New Reinforcement Measure Suited for Space Truss with No-Fire Operation

Abstract:

A new reinforcement measure with no-fire operation is presented, which is very suitable for space trusses which are located in gas stations. A finite element model (FEM) is presented with shell elements and multipoint constraint elements. With this FEM, nonlinear analyses are carried out. Analytical results show that integral failure of reinforced pipe is caused by yielding of original pipe inside. So it is not necessary to reinforce original pipe using steel pipe bonded outside with high yield strength. With the increase of length of bonded pipe outside, loading according to elastic stage and ultimate bearing loading increase, it is clear that the length of bonded pipe outside is an important factor which influences the bearing capacity.

• Periodical: Advanced Materials Research (Volumes 919-921)
• Pages: 401-405
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.919-921.401
• Online since: April 2014
• Authors: Zuo Yun Mei, Chuan Qing Liu*, Xing Mi, Ping Wu
• Keywords: Bearing Capacity, Multipoint Constraint, No-Fire Operation, Reinforcement, Steel Pipe

References

[1] Tall L. The Reinforcement of Steel Columns[J]. Engineering Journal, American Institute of Steel Construction, 1989, 26(1): 33-37.

[2] Unterweger H. Ultimate Load Capacity of Columns Strengthened Under Preload [C] / Proceedings of the Second International Conference on Advances in Steel Structures. Hong Kong: 1999: 117-124.

DOI: 10.1016/b978-008043015-7/50014-2

[3] Wu Z Q. Behavior of Steel Columns Reinforced with Welded Steel Plates [R]. Structural Engineering Report No. 250. Edmonton (AB, Canada), Department of Civil and Environmental Engineering, University of Alberta, (2002).

[4] Zhang J. Research of Steel Structure Weld under Load[J]. Journal of Fuzhou University, 2005, 33(4): 274-278.

[5] Guo Y M. Welding Technology on High Loading Stress[J]. Steel Construction, 1996, 11(1): 49-54.