Problem 1. A W30 x 116 beam has the top flange restrained against lateral displacement and rotation and has an unstiffened web. A point load is applied to the top flange at 2m. From the left support. The beam spans 12 m. Use A36 steel with yield strength of Fy = 248 Mpa. a. Compute the maximum value of point load that may be applied without web yielding occurring. b. Compute the maximum value of point load that may be applied without web crippling occurring. Properties of W30 x 116 d = 762 mm K = 41.28 mm bf = 266.7 mm tf = 21.59 mm tw = 14.33 mm

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TASK 3 250 180 14 I 30 24 Weld 450 A compound girder consists of a steel joist with steel plates welded onto each flange as shown. If the ends are simply supported and the effective span is 10 m, what is the maximum UDL which can be supported by the girder? [kN/m] Allowable longitudinal stress in plates = 110 MN/m² Allowable load in shear for each weld = 60 kN/m Allowable shearing stress in web of girder = 75 MN/m² Note: 1.0 MN/m² = 1.0 N/mm² 50

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Civil

A W610 x 82 beam of A 36 steel has end reaction of 302 kN and is supported on a plate with a length of bearing of 139 mm. Fy = 248 MPa.   Properties: d = 599 mm tw = 11 mm tf = 12.8 mm K = 33.76   Determine the compressive stress at the toe of the fillet (web yielding) for end reaction.

A traffic light signal pole is subjected to the weight of each traffic signal 45 lbs and the weight of the road lamp 55 lbs . The weight of lateral arms is included in the signal and lamp weights. The people is fixed and the base and is made of round structural steel section HSS 14.000 x 0.25. The details of the pole section may be obtained form the Manual of American society of steel Construction (AISC Steel Manual). Analyze the principle normal stresses and the maximum shear stresses on elements A and B located at the base in the pole as shown in the sketch below.

A traffic light signal pole is subjected to the weight of each traffic signal 45 lbs and the weight of the road lamp 55 lbs . The weight of lateral arms is included in the signal and lamp weights. The people is fixed and the base and is made of round structural steel section HSS 14.000 x 0.25. The details of the pole section may be obtained form the Manual of American society of steel Construction (AISC Steel Manual). Analyze the principle normal stresses and the maximum shear stresses on elements A and B located at the base in the pole as shown in the sketch below