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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)
by estimation
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Define the Thiem Equations for Confined Aquifers Using natural log: Q = 2pKm(h 2 - h 1 )/ln(r 2 /r 1 ) Using log 10 : Q = 2Km(h 2 - h 1 )/((1055)log(r 2 /r 1 ))
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