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- If w=15 kN/m, determine the following: a. Maximum tensile stress in the beam b. Maximum compressive stress in the beam W 300 mm В 3 m 150 mmFrom the given figure below and its properties, calculate the stress at the bottom where at the fixed end. (MPa) Properties: Beam width = 209 mm Beam height = 391 mm WLL = 8.04 kN/m WDL = 14.89 kN/m Pu = 8 kN %3D Span of the beam = 7 m Prestressing force = 227 kN eccentricity = 130 mm Pu (kN) Wo (kN/m)From the given figure below and its properties, calculate the stress at the top where at the fixed end. (MPa) Properties: Beam width = 286 mm %3D Beam height = 422 mm WL = 11.2 kN/m WDL = 12.83 kN/m Pu = 5 kN Span of the beam = 6 m %3! %3D Prestressing force 221 kN eccentricity = 122 mm Pu (kN) Wo (kN/m)
- Problem 1 39 ft (): Given: A steel railroad track which was installed at 30° F. Let E = 29 x 10 ^6 psi & a = 6.5 x 10^-6 / ° F Find: If the temperature reaches 125 ° F, determine a) The normal stress in the rails which are welded together to form a continuous track. b) The normal stress in the rails assuming the rails are 39 ft. Iong with 1/4" gap between them.Situation X: Consider the figure below. Wi = 200 kN/m w2 = 300 kN/m = 2m L1 L2 = 3 m L3 = 2 m W2 W1 L1 L2 L3 Batangas State University CE 420: Comprehensive Exam | Page 4 Test Bank: Engineering Mechanics Principle of Structural Analysis and Design 25. Calculate the total length, L( m), so that the resulting stress q is uniform. А. 10 В. 12 C. 9 D. 8 26. Which of the following gives the location (m) of the maximum shear from the left end? А. 4.0 В. 5.0 C. 6.0 D. 4.5 27. Which of the following gives the location (m) of the point of inflection from the left end? А. 1.24 В. 5.16 C. 6.28 D. 3.20QUESTION 1 Two vertical forces are applied to a beam of the cross section shown. i) ii) Determine the maximum tensile and compressive stresses in portion BC of the beam. Determine the maximum shear stress in the beam. 65 kN 65 kN 5mm/75 mm75 mm B D 150 mm 50 mm 1.5 m
- A 4m^2 sectional load of 100 kPa is distributed evenly on ground surface. Find the following : A. Increase in stress 2meters below the center B. Increase in stress 4meters below the center.Problem 266 At 20°C, a rigid slab having a mass of 55MG is placed upon two bronze rods and one steel rod as shown. At what temperature will the stress in the steel rod be zero? For the steel rod, A=6,000 mm2, E=200 x 10' N/m2 and a=11.7 um/(m C). For each bronze rod, A=6,000 mm?. E=83 x 10 N/m2, and a=19.0 um/(m°C). M 23Dmm Bronze Steel BronzeSituation 3: 200.02 kN 75.05 mm 50.05 mm 15.05 deg 200.02 kN 1. Tensile stress at section A-A 2. Shear stress at section A-A 3. What angle of plane A-A gives maximum shear stress?
- In the figure shows a plan view of footing that applies a uniform load of 300kPa on a horizontal ground surface. Calculate the vertical stress component in kPa at point A at a depth of 2m.A 30 mm square bar of 100 mm length is subjected to an axial compressive load of 90 kN. What will be the change in length if lateral strains are prevented by the application of uniform and equal lateral external pressure of suitable intensity? Take E= 100 GPa and u = 0.25.A 3-meter solid steel shaft, with an unknown diameter, twists by 5° as it experienced a shear stress of 60 MPa. What is the diameter of the solid steel shaft? Use G = 83 GPa.