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Given:
beam deminsions: flange width=22" FLANGE THICKNESS=7" WEB WIDTH=7" SECTION HEIGHT=40"
f'c=5000psi f'ci=3500psi fpu=270ksi Ap=eighteen 1/2" diam strands superimposed load=.85k/ft: 40' simple span Type I cement; moist cured Pretensioned beam Required:
1. Estimate prestress losses at midspan 90 days after release. (elastic shortening,creep,shrinkage,steel relaxation)
Retardation of fresh concrete has numerous benefits as below: (i) A rapid hydration process leads to loss in concrete strength since concrete will have a poorer structure with
Determine the condition of each activity in the network flow diagram shown below Ans: a. Activity C can be started only after the completion of activities A and
Question Have air test or water tests be selected to test leakage of constructed gravity pipelines ? Answer For gravity pipes, air tests are carried out after completi
Bituminous Concrete: Bituminous Concrete (BC) is a hot-mix superior type of bituminous surfacing, having a low voids (3-5 per cent), good durability high imperviousness and g
explain the point of contraflexure
what are the basic two division of surveying
Q. Direction of approaching velocities of ships during berthing? One of the key effects of angle of approaching velocities of ships is its influence of energy to be absorbed by
list and explain the types of concrete mixer
Why are undisturbed samples needed? Describe any one procedure of obtaining undisturbed samples for a multi-storeyed building project. For what purpose are geophysical methods u
The state of stress at a point is given by the stress components sx = 70 MPa, sy = 10 MPa and ?xy = - 40 MPa. Using Mohr''s circle, find (i) Principal stresses, and (ii) Principal
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