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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)
Surface runoff travelling over ground surface to reach receiving water involves the following events: i) Rainfall intensity exceeds soil's infiltration rate; ii) Excess water
Binders : Cement: Cement as a Binder Cement is one of the main ingredients of concrete. When cement sets (with the addition of water), it forms a paste and binds the
A shaft 9 m long is subjected to a torque 30 t-m at a point 3 m distant from either end. The reactive torque at the nearer end will be?
State the process to calculate the Transmission Length It is the distance required at the end of a concrete member for developing the maximum tendon stress by bond.
Define the term- erection stresses The creep loss due to live load stress, erection stresses and other stresses of short duration may be ignored. The loss of prestress due to
triangle of force
Calculate the Volume of Excavation Using the information given in Figure, the volume of excavation in yd 3 is most nearly: Solution: Use the average end area meth
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Q. Air chamber vs. surge tank in pressurized pipelines? Air chambers and surge tanks are generally installed in water main to ease the stress on the system when valves or pumps
Define Continuity Equation Mass in fluid systems is always conserved. Ρ 1 v 1 = ???? 2 v 2 If the fluid density is the same at both points in the flow, the continui
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