A two-span continuous T beam is supported on three concrete walls spaced 20ft on center. The beam is 12"x36" with a flange that is 4in deep and 40in wide and is carrying a dead load of 0.8 k/ft (including self-weight) and a live load of 1.1 k/ft. Use F'c = 6,000 psi and Fy= 60,000 psi. Determine the bending moment at the two midspans and over the support using the ACI approximate method

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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.