For external post-tensioning, the tendons lie outside the cross-section of the concrete member, but inside the envelope of the structure. These post-tensioning systems are used for prestressing concre

Racking systems are structures for storing and retrieving goods in warehouses. The goods to be stored are usually placed on pallets or in grid boxes. Metal products and construction techniques

Punching shear reinforcements are special reinforcements used in place of stirrups or bent reinforcements to increase the punching shear resistance in the area of beam supports for reinforced concrete