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what is the meaning of elastic shortening of concreteat the transfer stage compressive prestressing force is transferred to the concrete due to this
determine the term - final tensionthe tension in tendons after losses of prestress have taken place is called as final tension final tension is taken
define in biref about the final prestress the stress which exists after all losses of prestress have occurred substantially is known as final
explain the term - loss of prestressat the transfer stage tendons produce compressive stresses in concrete sooner or later the magnitude of these
process to calculate the initial tension the maximum stress induced in the prestressing tendon at the time of the stressing operation is known as
what is initial prestressfrom the transfer stage tensile stresses in tendons apply compressive stresses in concrete the initial value of these
pre-tensioned concrete elementsit is the act of transferring the stress in prestressing tendons to the concrete member in the case of pre-tensioned
supplementary or untensioned reinforcementit is that reinforcement provided in prestressed concrete member which is not provided in a stretched
explain the term - characteristic strengththe strength of a material below which not more than 5 percent results are expected to fall is
determine the characteristic load for structurethe load which has 95 percent probability of not being exceeded during the life of a structure is
explain the term - circular prestressingthis term refers to the case when tendon profile is provided in a round shape such as in water tanks and
explain the term - uniaxial - biaxial -triaxial prestressingthese terms refer to cases when the concrete is prestressed in only one direction in two
concordant prestressingin this type of prestressing tendons follow a concordant profile the concordant profile of tendons does not change the
non-distortional prestressingconcrete members deflect due to their own self weight if prestressing force is applied in such a way that these
define the proess of eccentric prestressingin this form of prestressing the centroid of cross-sectional areas of tendons is not located at the
state the term axial prestressingin concreteif the centroid of cross-sectional areas of tendons is at the location of the centroid of the
explain the term - moderate prestressingin this form of prestressing no limit is imposed on the magnitude of tensile stresses which may be
what is partial prestressingit is a form of prestressing in which tensile stresses are permitted upto a limited extent in concrete under working
determine the uses of full prestressinga prestressed concrete structural member is said to be fully prestressed if sufficient prestresses are
explain the term - non-bonded prestressed concreteit is a method of construction in which the tendons are not bonded to the concrete ducts housing
what is bonded post-tensioning in post-tensioned construction ducts in which tendons are provided are sometimes grouted after the stressing operation
enumerate about the bonded memberit is a concrete member in which tendons are bonded to the concrete they may be directly bonded to the concrete as
explain brief about the term - anchoragea device used to anchor tendons at the end of a concrete member is called as an anchorage in the case of
define the term - pre- tensioningit is a method of prestressing in which tendons are placed inside ducts or passages provided in concrete after
state the method of pre- tensioning it is a method of prestressing concrete in which tendons are stretched or tensioned before concreting in this