Concrete strength reduction of DSCT member by welding heat

Title
Concrete strength reduction of DSCT member by welding heat
Author(s)
Won, Deokhee; Han, Taek Hee; Kim, S.; Kang, Y.J.
KIOST Author(s)
Won, Deokhee(원덕희)Han, Taek Hee(한택희)
Publication Year
2012-12-02
Abstract
Strength reduction was investigated when a double-skinned composite tubular (DSCT) member was exposed to welding heat. And a method for a DSCT member to maintain its original strength against the welding heat when modular DSCT members are composed. Welding causes the heat of 20,000°C on the weld zone and the heat of 1,300°C around the weld zone. The strength of concrete nearby the weld zone decreases by high temperature. In this study, the concrete strength cases were investigated when arc welding and electro slag welding were used as the welding methods. Through heat transferring analysis of welded DSCT members, a preventing method preventing concrete strength reduction was proposed. The proposed method showed it prevented concrete strength reduction and it was verified by finite element analysis (FEA). © 2012 Springer-Verlag.
ISSN
1865-0929
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/27269
Bibliographic Citation
2012 International Conference on Advanced Software Engineering and Its Applications, ASEA 2012, and the 2012 International Conference on Disaster Recovery and Business Continuity, DRBC 2012, Held in Conjunction with GST 2012, pp.437 - 444, 2012
Publisher
ASEA
Type
Conference
Language
English
Publisher
ASEA
Related Researcher
Research Interests

Structural Engineering,Composite Structure,Marine Energy,구조공학,합성구조,해양에너지

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