Calculation Method of Butt-Welded Connection of Steel Structure Post Fire

Abstract:

In order to study the load-bearing properties of butt-welded connection of steel structure post fire, the strength design value of weld connection post-fire is proposed based on the experimental data and theoretical analysis. Considering the influence of different high temperatures and cooling patterns on strength damage of the weld, a revised checking method for strength of butt-welded connection of steel structure after high temperature is established on the basis of the analysis method for strength of butt-welded connection of steel structure at room temperature. The method can be used for damage assessment and strengthening technique of steel structure post fire.

• Periodical: Advanced Materials Research (Volumes 189-193)
• Pages: 3629-3632
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.189-193.3629
• Online since: February 2011
• Authors: Jian Feng Chen
• Keywords: Butt Welding, Damage, Post-Fire, Strength Check

References

[1] Shaofan Chen. Principles of Steel Structure Design. Beijing: Science Press, (2005), p.265. (In Chinese).

[2] Pingzhou Cao, Zhaoquan Zhu. Steel Structure. Beijing: China Electric Press Power (2008), p.37. (In Chinese).

[3] Pingzhou Cao, Jianfeng Chen and Wentao Zhao. Experimental investigation on tensile strength of butt welded joint post high temperatures. China Welding, Vol. 18 (2009), p.18.

[4] Jianfeng Chen, Pingzhou Cao, Xianfeng Dong. Experiment on tensile and shear strength of front fillet welded joint post-high-temperatures. Transactions of the China Welding Institution. Vol. 30 (2009), p.81. (In Chinese).

[5] Jianfeng Chen. Investigation on Safety Assessment and Strengthening Technique of Steel Structure Post-Fire. Nanjing: Hohai University, (2009). (In Chinese).

[6] Guojun Sun, Mechanics of Materials. Higher Education Press, (1999). (In Chinese).