TY - JOUR
T1 - Water-pressure test and determination of welding-throat-depth for welded built-up square CFST column
AU - Lee, Seong Hui
AU - Kim, Sun Hee
AU - Kim, Young Ho
AU - Tao, Zhong
AU - Choi, Sung Mo
PY - 2011/7
Y1 - 2011/7
N2 - Welding process and throat depth are essential to reduce construction costs of steel tubes. However, the resulting welds should be checked to ensure construction safety especially when wet concrete is to be pumped into the tubes. In the past, tests (Mock-up Test) using actual size specimens were conducted to verify the feasibility of welding throat depth (WTD) during the concrete casting stage on site. However more than often, this is inapplicable owing to the high testing costs, difficulties in disposing of test specimens with wet concrete, and lack of suitable places to conduct tests. Accordingly, this study suggested a water pressure test method and carried out 6 tests on welded built-up square concrete-filled steel tubular (CFST) columns to evaluate the WTD safety. Recommendations are made for the WTD selection.
AB - Welding process and throat depth are essential to reduce construction costs of steel tubes. However, the resulting welds should be checked to ensure construction safety especially when wet concrete is to be pumped into the tubes. In the past, tests (Mock-up Test) using actual size specimens were conducted to verify the feasibility of welding throat depth (WTD) during the concrete casting stage on site. However more than often, this is inapplicable owing to the high testing costs, difficulties in disposing of test specimens with wet concrete, and lack of suitable places to conduct tests. Accordingly, this study suggested a water pressure test method and carried out 6 tests on welded built-up square concrete-filled steel tubular (CFST) columns to evaluate the WTD safety. Recommendations are made for the WTD selection.
KW - Concrete-filled tubular column
KW - FEM analysis
KW - Water pressure test method
KW - Welded built-up square CFST column
KW - Welding throat depth (WTD)
UR - http://www.scopus.com/inward/record.url?scp=79955469816&partnerID=8YFLogxK
U2 - 10.1016/j.jcsr.2011.02.012
DO - 10.1016/j.jcsr.2011.02.012
M3 - Review article
AN - SCOPUS:79955469816
SN - 0143-974X
VL - 67
SP - 1065
EP - 1077
JO - Journal of Constructional Steel Research
JF - Journal of Constructional Steel Research
IS - 7
ER -