A double-angle shape, 2L7×4׳/8, is used as a tension member. The two angles are connected to a gusset plate with 7/8-inch- diameter bolts through the 7-inch legs, as shown in Figure P3.4-5. A572 Grade 50 steel is used. a. Compute the design strength. b. Compute the allowable strength. 2/2" O 7" 3" 12" O O 2L7 X 4 × /8 FIGURE P3.4-5
A double-angle shape, 2L7×4׳/8, is used as a tension member. The two angles are connected to a gusset plate with 7/8-inch- diameter bolts through the 7-inch legs, as shown in Figure P3.4-5. A572 Grade 50 steel is used. a. Compute the design strength. b. Compute the allowable strength. 2/2" O 7" 3" 12" O O 2L7 X 4 × /8 FIGURE P3.4-5
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:A double-angle shape, 2L7×4×3/8, is used as a tension member. The two angles are connected to a gusset plate with 7/8-inch-diameter bolts through the 7-inch legs, as shown in Figure P3.4-5. A572 Grade 50 steel is used.
a. Compute the design strength.
b. Compute the allowable strength.
**Explanation of Diagram:**
The diagram shows a double-angle shape connected to a gusset plate. The dimensions and details are as follows:
- The overall length of the angle is 7 inches.
- The diagram shows four bolt holes evenly spaced along the gusset plate.
- The spacing between the centers of adjacent bolt holes is 3 inches.
- The edge distance from the first and last bolt holes to the end of the gusset plate is also 3 inches.
- The vertical distance from the edge of the gusset plate to the center of the first row of bolt holes is 2 1/2 inches.
- The vertical spacing between the two rows of bolt holes is 3 inches.
- The distance from the edge of the gusset to the center of a bolt hole is 1 1/2 inches.
- The bolt diameter is 7/8 inch.
The figure is labeled as "FIGURE P3.4-5."
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