The beam cross section shown below has been proposed for a short pedestrian bridge. The cross section will consist of two pipes that are welded to a rectangular web plate. Dimensions of the cross section are: h = 430 mm tw = 12 mm d = 110 mm t = 9.6 mm Additionally: • The area of each pipe is A = 3028 mm². • The moment of inertia of the entire beam cross section about the z centroidal axis is Iz=320410000 mm4. If the beam will be subjected to a shear force of V = 110 kN, determine the shear stress at point K, located at yk = 70 mm below the z centroidal axis. H H Ун Ук Answer: TK = K MPa Z K tw h

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Design of structures using FEA

An arrangement, in which various members are interconnected with their constrained relative motion, the whole arrangement is then known as a structure. The degree of freedom of such a structure is zero. In such a structure, the load can act throughout the length of the structure or at the joints.