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Problem Assignment - Ductility of Reinforced Masonry Shear Walls
1. Determine the minimum spacing of No. 4 reinforcing bars that can be placed in the special reinforced shear wall shown below per the TMS 402 "rho-max" limitations. The wall is subjected to a vertical axial compressive force equal to 100 kips which results from a combination of dead, live and earthquake loads (D+0.75L+0.525E).
Prism strength is equal to 1500 psi. Type S mortar is used with Portland Cement. Reinforcement is Grade 60.
2. If you wished to waive the "rho-max" limitations, what alternate wall design would you prescribe that would achieve the same or better ductility?
A steel cylinder initially contains nitrogen gas at 200kPa and 25oC. the cylinder is connected to a suply line containing nitrogen at 800kPa and 25oC. A valve is opened, allowing nitrogen to flow into the cylinder until the pressure reaches 800kPa. T..
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A concrete hollow box culvert is shown in Figure P14.12. A basement for a building is required near the culvert. One proposal is to construct a sheet pile wall to surround the excavation, as shown in Figure P14.12, and pump out the water in the ex..
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Are the forms reused? How long are the shores kept in place? Keep a diary of your observations over a period of a month or mor
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