prestressing


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Related to prestressing: prestressing steel

prestressing

Applying a load to a structure, deforming it so that it will withstand a working load more effectively or so that it will deflect less.
References in periodicals archive ?
the vipps of the le boulou / spanish border section of the a9 motorway were built with ka type prestressing cables.
Furthermore, stresses due to prestressing force at transfer can be estimated using Eqs.
Insteel Wire Products metallurgical engineer Christopher Reeve, who chairs an ASTM section behind A1096, invites participation in helping to develop and maintain standards related to single prestressing wire; epoxy-coated, compacted, indented or two- and three-wire strand; and, related products.
In the conditions where the pieces are mounted on two supports, prestressing techniques provide effective solutions to improve the performance, in terms of both resistance and deformations.
During release of the pretensioned reinforcement from the prestressing frame strands are shortening and adhesion and mechanical bond are damaged at the ends of prestressed concrete member.
The cable string is placed between suspensions to minimize horizontal prestressing force effects acting in the deck.
The stress-laminated technique consists of a series of timber planks placed side by side between supports of the bridge and compressed transversely with high-strength prestressing steel bars.
Prestressed concrete is a particular form of reinforced concrete in which external prestressing force is applied on the concrete to reduce or eliminate the tensile stresses and thereby control or eliminate cracking.
The concrete provides perfect protection for the steel, passivating any corrosive reactions, and the prestressing steel keeps the concrete in the tank walls under constant compression to enhance its water-tightness.
It is a one of two methods of prestressing concrete, which has internal stresses (forces) induced into it during the construction phase for the purpose of counteracting the anticipated external loads that it will encounter during its lifecycle.
Prestressed concrete bridge members will undergo different loading stages, including prestressing release, beam and slab weight, superimposed dead load, and live load.