GATE CE 2015 Set 2 — Question 18
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Structural Engineering → Indeterminate Analysis & Influence Lines → Free-Body Diagrams
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Question
A guided support as shown in the figure below is represented by three springs (horizontal, vertical and rotational) with stiffness , and respectively. The limiting values of , and are:
Correct answer
(A) ∞, 0, ∞
Solution
A guided support (or sliding support) allows translation in one specific direction while preventing translation in the perpendicular direction and preventing rotation.
1.From the figure, the support allows vertical movement. Therefore, the vertical stiffness (no resistance to vertical displacement).
2.The support prevents horizontal movement. Therefore, the horizontal stiffness (infinite resistance to horizontal displacement).
3.The support prevents rotation. Therefore, the rotational stiffness (infinite resistance to rotation).
Thus, the limiting values are .Continue learning with Success Tracker
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