onsider the beam shown in (Figure 1). Suppose that P = 45 kN. jure 2 m D 2m < 30 kN/m 3 m- 1 of 1 > Part B Determine the displacement at point D measured downward. Use the prin virtual work. EI is constant. Assume EI is in kN m². Express your answer using three significant figures. Enter positive v displacement is downward and negative value if the displacement is AD 195| ΑΣΦ | 41 vec ?

tf tw h W The dimensions of an l-beam are shown in the parameter table below. Find the area moment of inertia about the neutral axis, xx. parameter value units w 6.75 in 11 in tp 0.45 in 0.35 in Is in ||

A cross-section of a beam is shown in Figure Q2. If the shear force in this section is V determine the value and the location of the maximum shear stress in the section. In Figure Q2, a = 68 mm and the origin of the coordinate system is at centroid of the cross section. y= A Z= a I₂ = S = AY mm; Figure Q2 Answer The vertical coordinate (y-coordinate; the y-axis serves as the axis of symmetry of the cross- section.) and horizontal coordinate (z-coordinate) of the location where the maximum shear stress occurs in the section are mm; O 4a Tmax= The vertical distance from the location where the maximum shear stress occurs in the section to the bottom side (AB) of the cross section can be calculated as Distance = mm B Second moment of area The second moment of area employed in the equation to calculate maximum shear stress can be calculated as Shear stress a (units : mm¹ ) First moment of area The first moment of area employed in the equation to calculate maximum shear stress can be…

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