탄소강 용착금속 블록전단파단 용접접합부의 최대내력에 관한 실험적 연구

An Experimental Study on Ultimate Strength of Carbon Steel Welded Connection with Weld Metal Block Shear Fracture

초록

The purpose of this study is to investigate the ultimate strength of carbon steel (SS400) fillet-welded connections with weld metal fracture not base metal fracture through monotonic tensile test. Main variables of the specimens are weld length and welding direction against applied force. Three types of specimens with transverse fillet weld against loading direction (CTFW series), longitudinal fillet weld against loading direction (CLFW series) and full fillet weld (CFW series) failed by tensile fracture, shear fracture and block shear fracture in the weld metal, respectively. Test strengths were compared with design strengths calculated by current design specifications (Korean Design Standard [KDS] and American Society of Steel and Construction [AISC]) and the design codes tended to underestimate the weld metal fracture strength of test results by up to 73 %.

키워드

탄소강용접접합부용접길이용접방향용착금속파단설계기준Carbon steelWelded connectionWeld lengthWelding directionWeld metal fractureDesign code
제목
탄소강 용착금속 블록전단파단 용접접합부의 최대내력에 관한 실험적 연구
제목 (타언어)
An Experimental Study on Ultimate Strength of Carbon Steel Welded Connection with Weld Metal Block Shear Fracture
저자
김태수강현식
DOI
10.7781/kjoss.2020.32.4.225
발행일
2020-08
유형
정기학술지(Article(Perspective Article포함))
저널명
한국강구조학회 논문집
32
4
페이지
225 ~ 234