Experimental investigation of residual stresses in HSB800 structures by the sectioning method
| Author(s): |
Soo-Chang Kang
Ki-Seok Kim Jong-kwan Lee |
|---|---|
| Medium: | conference paper |
| Language(s): | English |
| Conference: | 35th Annual Symposium of IABSE / 52nd Annual Symposium of IASS / 6th International Conference on Space Structures: Taller, Longer, Lighter - Meeting growing demand with limited resources, London, United Kingdom, September 2011 |
| Published in: | IABSE-IASS 2011 London Symposium Report |
| Year: | 2011 |
| Abstract: |
High-performance steel for bridges with a ultimate tensile stress of 800MPa(HSBⓇ800) was recently developed in Korea. By applying the TMC(thermo-mechanical control) process and optimizing chemical composition, HSBⓇ800 can be produced to have not only high strength but also high toughness and good weldability. In general, welding is needed to join HSBⓇ800 plates in fabricating a plate girder. The welding process results in high residual stress which influences the inelastic buckling strength of structures. In the previous research, the typically used residual stress models have been applied to investigate the behaviour of a structure having a ultimate stress of 800MPa without any verification. Therefore, in this study, the characteristics of residual stress in welded structures with HSBⓇ800 was investigated by the sectioning method and a new residual stress distribution model for HSBⓇ800 was proposed. |
| Keywords: |
welding buckling strength residual stress HSBⓇ800 sectioning method
|
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data sheet - Reference-ID
10065637 - Published on:
03/10/2011 - Last updated on:
05/07/2021
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