initial prestress

initial prestress

The prestressing stress (or force) applied to prestressed concrete at the time of stressing.
References in periodicals archive ?
Where, f'ci is the compressive strength of concrete at the time of initial prestress.
Another option is to carry out an initial prestress.
The use of the self-tensioning device in combination with an initial prestress enables the construction of slenderer structural timber floors conceived for public use, yielding in all studied cases, to relative deformations below 1/1000 of the span in service loads conditions.
According to equations (7), (8) and (9) coefficient a depends on the initial prestress, the effective prestress transferred to the pretensioned member and Poissons effect of the concrete and pretensioned strand, which causes radial tensile stresses.
Transfer length of prestressing strand as a function of draw-in and initial prestress, PCI Journal 38(2): 86-93.
Prestressing tendons are installed and jacked to provide an initial prestress of 200 psi and final prestress of 175 psi across the transverse joints of the slabs.
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