Unformatted text preview: noted! (60 points) b) How would your design change if 5/8” thick Class I Plyform became available at the same price? Would you recommend buying Class I Plyform instead of Class II if Class I was more expensive? Show your calculations. (15 points) 2. Determine the maximum spacing of nominal 2x4 lateral braces for a wall form similar in arrangement to Figure 13-4, p. 398 of the textbook. Braces will only be placed on one side of the form. The height of the form is 7 ft, the height of the top of the brace is 5.5 ft, the horizontal distance from the form to the bottom of the brace is 4 ft. The wind force prescribed by the local code is 15 lb/ft 2 . If you determine that braces are prone to buckling, use lateral support to each brace at the midpoint of its length. The 2x4 braces are made of Eastern spruce for which the modulus of elasticity was found to be higher than usual, 1,400,000 psi. The allowable stress values are: F c = 700 psi F t = 625 psi (25 points)...
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- Spring '08
- Construction Engineering, Height, Class II railroad, Construction Engineering Problem, ft-long concrete wall, wide tie wedges