3. Analyze the composite structure shown. a. Determine the axial force on member AB b. Determine the direct stress in member BC c. Determine the shear stress in AD 4¹ xy 12' B By 9 Bx
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- What is the magnitude of the compressive force on the left plumb in kN? F1 the steel and the left column concrete are bonded, what is the deformation due to applied load? part 3 is picturedThe maximum load of 200 KN was applied on a cylindrical specimen of concrete. Find the split tensile strength in MPa. Take depth as 150 mm and length as 300 mm.A 4 m long simply supported steel reinforced timber beam carrying a uniformly distributed load w = 10 kN/m has the cross-section shown in Fig Q1. The elastic moduli of the steel and wood are 210 GPa and 8.5 GPa, respectively. Calculate the radius of curvature at the composite beam’s midspan. Determine the maximum normal stresses in the steel and the wood under this loading condition. Plot the normal strain and stress distributions across the composite beam section. Determine the composite beam dimensions which ensure that both steel and wood reach their yield strengths at the same time. Assume that yield strengths for steel and wood are 350 MPa and 40 MPa respectively
- Segment A of the composite beam is made from 2014-T6 aluminum alloy and segment B is A-36 steel. If w = 0.9 kip>ft, determine the absolute maximum bending stress in the aluminum and steel. Sketch the stress distribution on the cross section.Two blocks of wood, 25 mm x 75 mm, are glued together along the joint inclined at 15o. Determine the average normal stress and shear stress developed in the wood fiber along section a-a.A composite beam has a cross section as shown in the figure below. The moment due to dead load, prior to concrete attaining strength is 581 kN-m. Subsequent to concrete attaining its strength, an applied load induces an additional moment of 410 kN-m and a vertical shear of 170 kN. Assume that the beam is not shored when the slab was poured and assume that creep and shrinkage stresses are negligible. Assume full composite action. Determine the longitudinal force at the junction of the slab and steel beam due to vertical shear.
- For the composite cross-section shown in Figure 2 which is built up out of steel and concrete and issubjected to amoment about Z axis (M), draw the stress profile. Given: Steel E = 200 GPa Concrete E = 25 GPa M = 8616 in kN.mThe beam is subject to 100 Kn-m Bending moment The modular Ratio is 8 Using cracked Analysis Determine the stress developed in Concrete and steelA beam 10 meters long 400mm x 600mm in cross-section is post-tensioned with a tendon 550 sq. mm. in the area and stretched to a stress of 660 KN. The tendon passed through a hole of 60mm x 70mm. The center of the hole is 75mm from the bottom. The loss of prestressing at the time of anchoring is 6%. Find the stress in the concrete immediately after prestressing.
- Shown is a composite plate joined together by rivets. The components consist of two tension bar plates that is ¾ X 4 inch and riveted together by two splice plates which is 0.8 X 6 inch. Each rivet has a diameter of 25.4 mm. Considering that the allowable stress for the tension bar plates and splice plates is σ=20.0 ksi, the allowable shear stress for the rivets is σ=25.0 ksi and the allowable bearing stress on the rivets and splice plates is σ=25.0 ksi. What will be the maximum permissible load P such that none of the allowable stresses will be exceeded?With Bending Moment! Problem 5.4. Bending of reinforced I beamFigure 5.13 depicts an aluminum I beam of height h = 0.25 m, width b = 0.2 m, flange thickness ta = 16 mm, and web thickness tw = 12 mm. The beam is reinforced by two layers of unidirectional composite material of thickness tc = 5 mm. The section is subjected to an axial force N1 = 250 kN and bending moment M3 = 200 kN·m. The Young’s moduli for the aluminum and unidirectional composite are Ea = 73 GPa and Ec = 140 GPa, respectively. (1) Compute the axial and bending stiffnesses of the cross section. (2) Find the distribution of axial stress over the cross-section. Sketch it along the ¯ı2 axis. Sketch it across the tops of both flanges. (3) Find the magnitude and location of the maximum axial stress in the aluminum and composite layers. (4) Assume the applied loads grow in a proportional manner, i.e. the applied loads are λN1 and λM3. If the allowable stress for the aluminum and unidirectional composite are σallowa = 400 MPa…The T-beam has the following properties: flange thickness = 125 mm flange width = 1000 mm web width = 500 mm web height = 350 mm f'c = 28 Mpa a) Calculate the stresses in concrete at uncracked stage under 200 kN-m. b) Calculate the cracking moment. c) Determine the balanced steel area and balanced ultimate moment. The steel is placed 80 mm from its cg up to extreme fiber with yield strength of 414 MPa.