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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)
A sand deposit of 12 m thick overlies a clay layer. The water table is 3 m below the ground surface. In a field permeability pump-out test, the water is pumped out at a rate of 540
Question If contractor suggests increasing concrete cover beyond contractual such as 40mm to 70mm shall engineers accept suggestion? Answer In contractual part, based on requir
Sketch a curve showing the relation among dry density and moisture content for Standard Proctor test and indicate the salient features of the curve. Describe why soils are compacte
calculate the support reaction as shown in figure;
How do we get electricity even when the gates of a dam were closed?
Define Concrete substruct - underwater inspection of bridges? Plain, reinforced, and pre-stressed concrete are used for construction of underwater elements. Since the majority
What is the shrinkage factor
Explain briefly shallow foundation?
some information
Q. Explain Condition Rating Number? 1. A Condition which warrants rebuilding / re-habilitation immediately. 2. A Condition which requires rebuilding / re-habilitation on pro
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