Mathematics · Structural Analysis
Consider a pin-jointed truss where all members have the same axial rigidity AE. Members QR, RS, and ST are collinear and each has length L. Nodes B, C, D are located vertically below Q, R, S respectively such that angles QBT, RCT, and SDT are all 90°, and angles BQT, CRT, and DST are all 30°. If joint T carries a vertical downward load P, the vertical deflection of joint T is given by k PLAE. What is the value of k?
- 19.0
- 23.0
- 34.5✓
- 41.5
Correct answer
4.5
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