A recent series of dynamic tests demonstrates that there are several types and doses of steel-fiber reinforcement that can be used in performance-based seismic design of coupling beams—headers that ...

A new method of connecting precast beams and columns will make it possible to quickly repair concrete buildings damaged by extreme events such as earthquakes and hurricanes. The patented technology, ...

Reinforced precast concrete manholes built to ASTM and NPCA standards can last for decades under heavy loads and challenging soil conditions. Though larger or more heavily reinforced structures may ...