Officially identified as Column 1001-B, the steel beam, one of 47 that held up the South Tower, was quickly plastered with Mass cards, rosary beads, flags, photos of missing innocents, letters from ...

The design of structural bridge elements like columns, beam-column joints, and cap beams has changed tremendously over the past 30 years. Many experimental tests have been done in order to determine ...

Q. Tim, I’ve never worked with metal joist hangers. How long have joist hangers been around? When I hold one in my hand, I question whether it’s actually strong enough to support all the weight that ...