4-18. Determine the direction 0(0° < 0 s 180°) of the force F = 40 lb so that it produces (a) the maximum moment about point A and (b) the minimum moment about point A. Compute the moment in each case. |3D A 2 ft F = 40 lb 8 ft

Q: Determine the hydrologic risk

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Q: determine the moment (m-kN) about point A due to the 3 kN and the two 17 kN forces

A: A structure is supported at A and is loaded with a 3kN point load and a couple of 17kN loads with a…

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Q: a. Compute reaction forces based on "W1". W1=10 kN. b. Compute internal forces/moments at a-a. W1 1m…

A: Given, Beam carrying uniformly varying load (UVL)  W1 = 10 kN

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Q: B-4 Determine the support reactions. Assume B is a pin and A and C are rollers. then draw the shear…

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Q: w1

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Q: 9-10. Determine the reactions at the supports, then draw the moment diagram. Assume B and C are…

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Q: a. Compute reaction forces based on "W1". W1=10 kN. b. Compute internal forces/moments at a-a. W1 1m…

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Braced cuts

The braced cut is a method of providing lateral support to the soil in foundation trenches, to prevent the trenches from deformation by the caving in of soil and resisting it from moving laterally. During shallow excavation in firm soil, generally, slopes are provided to resist the caving in of soil. During shallow excavation in soft soil and deep excavation, the chances of caving in of soil increase. Hence, it becomes necessary to make a provision to resist the deformation of trenches due to caving in of soil. The braced cut is the method used for such conditions. The excavation using braced cuts is a bit uneconomical as compared to the traditional open-cut excavation method but provides better safety than the cut excavation method.