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comparison of pre and post-tensioning a comparison between pre-tensioned and post-tensioned concrete members can be made on the basis of the
define the term - post-tensioned concretin the prescon and bbrv systems button heads are created at the ends of tendons in the case of prescon system
define the term - prestressing forceit should be realized that the maximum amount of prestressing force which can be transferred from tendons to
explain the term - strength cementit should be appreciated that the tensioning arrangement shall have to be kept in place until tendons are cut this
what is collocated network operationas wireless lans become more popular it is likely for two or more wireless lans to operate in the similar area or
recognize the losses of prestressrecognising the losses of prestress which take place after the prestressing of concrete structural elements it is to
material of steel tendons the material of steel tendons also must be of a high strength tendons should possess required material and geometrical
why we need a high strength concrete in prestressingthere is another aspect to why we need a high strength concrete in prestressing prestressed
state about the pre-tensioned concretein pre-tensioned concrete the tendon stresses are transferred to concrete by virtue of bond of
state the needs for high strength steel and concretein prestressed concrete construction tendons have 3 small area of cross-section
determine the term - degree of prestressingdegree of prestressingit is a measure of the magnitude of the prestressing force related to the resultant
define the term - cracking load and proof stress cracking load the load on the structural member at the time of the initiation of first visible crack
differentiate between short column and slender columnshort columnit is a column of rectangular section the effective length of which does not
what is the long term effects - concretelong term effects of loads on structures consider all the effects including creep and
state the short term effects of concretethese are various types of effects produced nearly instantaneously due to the application of external loads
limit states of serviceabilitythese are those limit states which point out to the inability of a structure or a structural component in functioning
determine the limit states of collapsethose limit states which point out the failure or collapse of a structure based on certain critical conditions
how the bursting tensile forces producedthese are tensile forces produced due to concentrated longitudinally applied prestressing forces in the end
discuss about the term - end zoneit is the length of a post-tensioned concrete member at the end which is required to get a distribution of prestress
state the process to calculate the transmission lengthit is the distance required at the end of a concrete member for developing the maximum tendon
what is the meaning of term -slip in anchorage in the case of post-tensioned concrete when the tendons are anchored at the ends of concrete members a
determine the meaning of relaxation of steel if the strain in steel is kept constant it is seen that stresses in it reduce with time it is called as
what is the loss of prestress due to shrinkage of concreteit is the loss of prestress due to shrinkage of concrete which takes place in the initial
loss of prestress due to creep in concretedue to the phenomenon of creep compressive prestress induced strains in concrete increase because of it
loss of prestress due to elastic shortening of concretedue to elastic shortening of concrete tendons are able to reduce their stretched length to