Experimental Study on Seismic Behavior of Strengthening Joints in Light Steel Adding Storey

Abstract:

In order to acquire the seismic performance of three different types of nodes between the concrete frame and the light steel adding storey, the pseudo-static tests were carried out to analyse contrastively these specimens’ failure modes, stiffness degradation, hysteretic curves and energy dissipation. The test results showed that : Three nodes’ destruction were due to the plastic hinges emerging at the end of beam; both encased steel and carbon fiber strengthening method can improve the seismic behavior, and in terms of the ultimate bearing capacity, energy consumption ability，the encased steel strengthening one can improved more significantly, and the encased steel one can effectively slow down the speed of stiffness degradation.

• Periodical: Advanced Materials Research (Volumes 671-674)
• Pages: 1480-1483
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.671-674.1480
• Online since: March 2013
• Authors: Rong Guo, Shao Wei Zhao, Kun Liu
• Keywords: Adding Light Steel Structure Storey, Pseudo-Static Test, Seismic Performance, Strengthening Joint

References

[1] Yang Li. Application of light steel structure in adding layer construction of house[J]. Shanxi Architecture. 2009(20).

[2] Lei Honggang, QinJiping. Research on the Possibility and Relative Problems of Structure Added by Light-weight Steel Storey. [J]. Taiyuan University of Technology. 2001, 3（4）.

[3] Xiaopei Zhang. Discussion on adding-story and renovation of housing[J]. Building Science Research of Sichuan. 1994，(3)：33-35(In chinese).

[4] Yan Wang, Jincheng Li. The Study and Application of the Structure of Added Light Gauge Steel Stories[J]. Qingdao Institute of Architecture and Engineering. 1998, 3(In chinese).

[5] Tao Zhang. Integral Design and Seismic Resistant Property Analysis of the Adding Steel Stories on the Top of the Original Buildings[D]. BeiJing: Tsinghua University, 2005(In chinese).

[6] Feng Song. The Technique of Adding Extra-floors Spanning Existing Building with Steel Structure and Its Application[D]. BeiJing: Tsinghua University, 2005(In chinese).

[7] Peicheng Wu. The Study of a Seismic Design Method of Structure Raised by Some Light-gauge Steel Stories[D]. LanZhou: Lanzhou University of Technology , 2006 (In chinese).

[8] Yu-zhuo Wang, Shan Tian, San-peng Cao, et al. The way of strengthening reinforced concrete beam-column joints by using enlarging section [J] . Shandong Jianzhu University. 2004, 19(1) 5~7 (In chinese).