A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Elevated temperature properties of steel butt weldments
Abstract Welding is commonly used in the construction of steel connections in the United States (U.S.). Thus, accurate characterization of weld behavior at elevated temperatures is critical for designing and evaluating the performance of steel structures exposed to fire. This paper presents results from an experimental study in which steady-state tensile tests of butt-welded steel plate coupons made from ASTM A36 steel and E70 electrode were conducted at temperatures ranging from ambient laboratory temperature (20 °C) to 800 °C. Retention factors for elastic modulus, yield strength, and ultimate strength were produced from the data and compared with those values specified for structural steels and fillet welds in U.S. and European design codes and standards. While the elastic modulus retention factors specified in the American Institute of Steel Construction (AISC) 360–22 Specification for Structural Steel Buildings were found to be conservative, the yield strength and ultimate strength factors recommended by AISC were found to be nonconservative for welds heated to temperatures between 400 °C and 800 °C. In addition, tensile fractures of the coupons, which predominately occurred in the base metal away from the heat-affected zone, were observed to occur within the weld at temperatures of 500 °C and 800 °C.
Highlights Mechanical properties of butt-welded steel coupons tested at elevated temperature. Retention factors for elastic modulus, yield strength, and ultimate strength. Welded steel connection performance in fire.
Elevated temperature properties of steel butt weldments
Abstract Welding is commonly used in the construction of steel connections in the United States (U.S.). Thus, accurate characterization of weld behavior at elevated temperatures is critical for designing and evaluating the performance of steel structures exposed to fire. This paper presents results from an experimental study in which steady-state tensile tests of butt-welded steel plate coupons made from ASTM A36 steel and E70 electrode were conducted at temperatures ranging from ambient laboratory temperature (20 °C) to 800 °C. Retention factors for elastic modulus, yield strength, and ultimate strength were produced from the data and compared with those values specified for structural steels and fillet welds in U.S. and European design codes and standards. While the elastic modulus retention factors specified in the American Institute of Steel Construction (AISC) 360–22 Specification for Structural Steel Buildings were found to be conservative, the yield strength and ultimate strength factors recommended by AISC were found to be nonconservative for welds heated to temperatures between 400 °C and 800 °C. In addition, tensile fractures of the coupons, which predominately occurred in the base metal away from the heat-affected zone, were observed to occur within the weld at temperatures of 500 °C and 800 °C.
Highlights Mechanical properties of butt-welded steel coupons tested at elevated temperature. Retention factors for elastic modulus, yield strength, and ultimate strength. Welded steel connection performance in fire.
Elevated temperature properties of steel butt weldments
Ammons, Malcolm (author) / Weigand, Jonathan (author)
2024-01-25
Article (Journal)
Electronic Resource
English
Elevated temperature properties of steel butt weldments
| Elsevier | 2024
Mechanical properties of bridge-steel weldments at elevated temperatures
| Elsevier | 2022
Fatigue crack initiation and growth in AlMg4.5Mn butt weldments
| Tema Archive | 2001