Which of the following is not a factor in the design of tension members ?
- ALength of the connection
- BType of fabrication
- CConnection eccentricity
- DGross area of the cross sectionCorrect
Solution
Concept
Factors affecting the strength of a tension member
Step-by-step solution
1. The strength at connections depends on the length of the connection (shear lag), the type of fabrication (drilled or punched holes) and the eccentricity of the connection. 2. These are listed as the factors to be considered besides the net area; the gross area is not among them.
Explanation
Shear lag, hole fabrication and eccentricity decide how efficiently a tension member transfers load through its connection.
Why the other options are wrong
(a), (b) and (c) are the standard factors.
Shortcut
Tension member factors: connection length, fabrication, eccentricity, net area.
Correct answer: D) Gross area of the cross section