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How to calculate the total loss of prestress
As a general guide, it may be taken that total loss of prestress may be in the range of 20 to 25 percent of the initial prestress, the lower and higher values of this range generally applying to post-tensioned and pre-tensioned concrete members respectively. It may seem natural as prestresses in post-tensioned members are generally applied at a later stage by which time concrete is able to have gained most of its strength.
A clay layer 24 metres thick has a saturated unit weight of 18 kN/m 3 . Ground water level occurs at a depth of 4 metres. It is proposed to construct a reinforced concrete foundati
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Question General requirement for Civil Engineering Works in 1992 Edition, Clause 15.09 details that tying wires for strengthening adjacent to and above Class F4 and F5 closes must
Your home mortgage is $300,000 for 30 years with a nominal annual rate of 7%. The monthly payment is most nearly: Solution: n = 360 months interest = 7%-annual ÷ 12-months/year
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Q. Kicker of reinforced concrete cantilever retaining walls located at the position of largest moment and shear force - why? Generally for reinforced concrete cantilever retai
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A concrete wall form tie with an ultimate strength capacity of 2,400-lbs is designed for use in a concrete wall form with an 18-in center to center spacing. During formwork inspect
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