Concrete filled cold-formed steel-concrete composite columns exhibit improved strength and ductility characteristics due to its ability resist inward buckling as well delay the outward buckling. Though concrete infill prevents buckling, still limits steel section from reaching yield strength. From past studies, it is observed that introducing of web stiffeners in cross-section may improve resis...

Steel sheet piling, typically used for retaining structures in the United States, is a potential alternative for use as the primary component in low-volume road (LVR) bridge substructures. To investigate the viability of sheet pile abutments, a demonstration project was performed in Black Hawk County, Iowa. The project involved construction of a 40 ft single-span bridge utilizing axially loaded...

The paper presents results of an analysis of acoustic emission (AE) signals captured in the course of laser cutting of a steel sheet, and the analysis of the signals characteristic of particular phenomena occurring after the cutting process. In the course of cutting, continuous signals, which are related to the quality achieved of the laser cut, are measured. After laser cutting characteristic ...

A special instrument has been built to measure the coercivity directly on steel sheets without having to cut samples. It will be used to perform the 8000 coercivity measurements which will be needed during the production of the ll'OOO ton of steel sheets for the LEP dipole magnets. The coercimeter allows local and directional coercivity measurements to be made on a steel sheet with an accuracy ...