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Title |
A Study on Method for The Reduction of Decreasing Strength of Concrete When Welding the Connection Part of Composite Structure Consist of Steel and Concrete
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Keywords |
용접 ; 교각 ; 콘크리트 강도 ; 복합 Welding ; Pier ; Concrete strength ; Composite |
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Abstract |
Recently, modular system are popular in construction fields, and they are increasing their marcket share. To compare modular units, bolting and welding are most popular methods. However, the temperature around a welded part might be over than 1,300℃ and the composite member might be exposed tp the direct welding heat about 20,000℃. This high welding heat makes decrease of the concrete strength. If the concrete strength seriously decreases, it can affect the behavior and safty of a structure. On this study, To prevent of concrete strength decreases by welding heat, we suggested method of to insert between steel and concrete.
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