Concrete-filled steel tubular (CFST) columns represent a mature yet evolving area of structural engineering. By encasing concrete within a steel tube, these composite members harness the compressive ...

Q: The outside of the Lally columns in my under-the-house garage have rusted out at the bottom. The inside concrete looks OK, but is the outside steel layer important? A: Lally columns are made up of ...

A rust-colored steel column salvaged from the debris of the World Trade Center has been moved to its new memorial location, along a forested walkway outside CIA headquarters just outside the nation’s ...

Q. The outside of the Lally columns in my under-the-house garage have rusted out at the bottom. The inside concrete looks OK, but is the outside steel layer important? A. Lally columns are made up of ...

Builders of the tallest office tower under construction at ground zero have set a 70-ton piece of steel into place — the largest column installed yet at the building. Three more columns are set to go ...

Unexpected problems arose Monday afternoon during the demolition of the former Wright State University Kettering Center in downtown Dayton when a structural steel column “kicked away” from other ...