Field Performance and Rating Evaluation of a Modular Press-Brake-Formed Steel Tub Girder with a Steel Sandwich Plate Deck

摘要

This paper and presentation are focused on the field performance of a modular press-brake-formed steel tub girder. The modular press-brake-formed girder is a shallow trapezoidal box girder cold formed using press-brakes from standard mill plate widths and thicknesses. A technical working group within the Steel Market Development Institute's Short Span Steel Bridge Alliance (SSSBA), led by the current authors, was charged with the development of this concept. Research of press-brake-formed steel tub girders has included analyzing the flexural bending capacity using experimental testing and analytical methods. This paper presents the experimental testing procedures and performance of a steel press-brake-formed tub girder bridge with composite steel sandwich plate deck.