Numerical Simulation Analysis on Seismic Behavior of Cold-Formed Beam-to-Column Connections

Abstract:

The cold-formed square steel tubular with light weight has better seismic behavior and is suitable for construction in the area with high seismic fortification intensity. The reliability of joint connection greatly influence the safety reliability of structure, which’s restoring force characteristics under low cyclic loading need to be further researched. The finite element software ANSYS is used to do the research between two welded joints. The results show that : (1)Compared with typical welded joint, the ultimate bearing capacity of improved joint increase much, hysteretic curve is more plump, energy dissipation capacity enhance and stiffness degradation is slow. (2) Axial compression ratio has great influence on hysteretic behavior, bearing capacity and stiffness of common welded joints; however, there is a little effect on improved joint’s bearing capacity and stiffness. (3) After improved, the yield of joint has a longer yield platform, and under the same axial compression ratio condition, its yielding and ultimate load both obviously superior to common welded joints.

• Periodical: Advanced Materials Research (Volumes 163-167)
• Pages: 692-696
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.163-167.692
• Online since: December 2010
• Authors: Yun Peng Chu, Yong Yao
• Keywords: Beam-to-Column Connection, Hysteretic Behaviour, Numerical Simulation Analysis, Stiffness, Ultimate Bearing Capacity

References

[1] LIU Fei, LI Yuanqi, SHEN Zuyan. Research Advances on Seismic Behavior of Low-Rise Cold-Formed Thin-Walled Light-Gauge Steel Residential Structures. Structural Engineers, Vol. 25, No. 4, pp.138-144. 2009. (in Chinese).

[2] LIU Jing-bo, CHEN Ming, LIU Xiang-qing, GUO Bing. Integral Behavior Analysis of Cold-formed Thin-walled Steel Framing System of Low-rise Residential Buildings. Journal of Architecture and Civil Engineering, Vol. 25, No. 4, pp.6-12.

[3] Zhang Kun. The Investigation on Cold-Form-ed Thin-Walled Steel Beam-Column Joints of Connections with Bolt-Plate. Chongqing University, Chongqing. 2004. (in Chinese).

[4] Lange J, Naujoks B. Behavior of cold- formed steel shear walls under horizontal and vertical loads. Thin-Walled Structures, 2006, 44: 1214-1222.

DOI: 10.1016/j.tws.2007.01.007

[5] P. Maranian. Vulnerability of Existing Steel Framed Buildings Following the 1994 Northridge (California, USA) Earthquake: Considerations for Their Repair and Strengthening. The Structural Engineer, 1997, Vol. 75, No. 10.

[6] JGJ101-96, Specification for Seismic Experimental Method of Building. Beijing: China Architectural Industry Press, 1997. (in Chinese).