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owres 110 Steel Properties E = 29,000 ksi (kips/inĀ²) G = 11,200 ksi Coefficient of thermal expansion = 6.5 x 10-6/ degree F Problem 1 Given: Steel rods and rigid bar as shown Strain in rods is zero prior to applying load After applying load P, strain in rod 2 is 600 x10-6 mm/mm 180 m , I 1011 RDD 2 & W 25 mm ROD 1 , 20mm 0 8 RIGID BAR 1 ai, M A B 6 D 4 2 300mm 300 mm 300 mm 900mm 1 Determine: Normal strain in rod 1 Normal strain in rod 1 if there is a 1mm gap at the connection at B before applying load Normal strain in rod 1 if there is a 1mm gap at the connection at C before applying load Problem 2 Given: 11xx1"x4 steel rod I Temperature of rod increases by 250 degrees F Determine: Elongation of the rod s Du What axial force (in kips) is required to result in an equal elongation? If the rod is 2' long rather than 4', what is the required force (in kips) Problem 3 Given: Beam with loading and supports shown Maximum allowable stress in the steel bar is 30 ksi Determine: Maximum load P that can be supported Elongation of the bar Normal strain in the bar Shear stress in the 3/4" bolt III) BAR K'22" x5' P 3' c fl. 3/4" $ o BOLT IN RIGID SINGLE T117 BEAM s HEAR

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