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 maximum tensile stresses in PPCP system occur at the edge of the slab along the transverse centerline where the region was diminutively affected by the prestressing force.
The expression of the new analytical model [1, 2] is established to estimate the stress distribution of the prestressing tendon, which may have a very important influence on nondestructive detection.
Therefore, the multiplier applied to the initial upward camber caused by prestressing force is equal to be 1 + [[mu].sub.pe] = 1 + 0.85(0.925) = 1.80.
Nowadays, the most commonly used method to monitor and assess the mechanical behavior of the CFRP plate on RC structures is electrical resistance strain gauges, which can effectively provide the information about the performance of the CFRP plate during the static and short-term prestressing loss stage [13].
This will be the first advantage of the prestressing. However the continuing comparison of the beams B12-asp, B16-asp and B12-a, B16-a load-deflection curves shows that prestress influenced just increase of cracking moment and yielding moment.
In this paper, cooling method was used to simulate the prestressing effect [9].
The studies related to the prestressed NSMR focused mainly and experimentally on the prestressing force due to the absence of appropriate prestressing system for NSMR.
Furthermore, stresses due to prestressing force at transfer can be estimated using Eqs.
The cable string is placed between suspensions to minimize horizontal prestressing force effects acting in the deck.
2011): (1) the realistic prediction of concrete creep and shrinkage; (2) the efficiency of prestressing to reduce deflections; (3) the shear deformations and the shear lag; (4) concrete cracking, and so on.
It consists of a series of timber planks placed side by side and compressed transversely with high-strength steel prestressing bars.
The ratings benefit from the company's experience, wide recognition in prestressing segment and specialised civil engineering works, equity infusion in fiscal 2010, steady industry growth prospects in the medium term and support from the Gammon Group of companies.