2. The compression member shown is pinned at both ends and supported in the weak direction at mid-height. A service load of 400 kips, with equal parts of dead and live load, must be supported. Use Fy = 50 ksi and select the lightest W-shape. 400 I 18′

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A: Given: DL = 30 kN/m LL = 18 kN/m Factored load: Wu=1.2DL+1.6LL=1.230+0.618Wu=64.8 kN/m

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A: Given  d= 475mm  Fy = 400 Mpa

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A: Using the method of section: Considering the joint D: ∑Fx=0FDJ=45 KN (T)

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Q: 200 mm

A:

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A: I have solved your problem

Q: C, VFc in kN LA in kN-m er KH, MKH in kN-m

A: force in columns

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Q: B 30⁰ P N 10 kN M L 20 kN FV 0 6 panels at 5 m K G 20 kN J 20 kN 30° 10 KN

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A:

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Q: Solve for letter D. thanks!

A:

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.