(of prestressed concrete cables)
1Prestressed concrete — diagram Prestressed concrete is a method for overcoming concrete s natural weakness in tension. It can be used to produce beams, floors or bridges with a longer span than is practical with ordinary reinforced concrete. Prestressing tendons… …
2prestressed concrete — ☆ prestressed concrete [prē′strest′ ] n. concrete in which steel cables, wires, etc. are embedded under tension so as to produce compressive stress and lend greater strength …
3prestressed concrete — concrete reinforced with wire strands, pretensioned or post tensioned within their elastic limit to give an active resistance to loads. [1935 40] * * * Concrete reinforced by either pretensioning or posttensioning, allowing it to carry a greater… …
4concrete — concretely, adv. concreteness, n. concretive, adj. concretively, adv. /kon kreet, kong , kon kreet , kong / for 1 10, 11, 14, 15; /kon kreet , kong / for 12, 13, adj., n., v., concreted, concreting. adj. 1. constituting an actual thing or… …
5Properties of concrete — Concrete has relatively high compressive strength, but significantly lower tensile strength, and as such is usually reinforced with materials that are strong in tension (often steel). The elasticity of concrete is relatively constant at low… …
6bridge — bridge1 bridgeable, adj. bridgeless, adj. bridgelike, adj. /brij/, n., v., bridged, bridging, adj. n. 1. a structure spanning and providing passage over a river, chasm, road, or the like. 2. a connecting, transitional, or intermediate route or… …
7tunnels and underground excavations — ▪ engineering Introduction Great tunnels of the world Great tunnels of the worldhorizontal underground passageway produced by excavation or occasionally by nature s action in dissolving a soluble rock, such as limestone. A vertical opening …
8Deep foundation — A deep foundation installation for a bridge in Napa, California, United States …
9Box girder bridge — Underneath the No. 2 Road Bridge in Canada Ancestor Tubular bridge Related jetway, skyway …
10Hormigón pretensado — Esquema de deformaciones. Esquema de la sección transve …
