what are compatibility or kinametics conditions for underdeterminate structure of a material?

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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what are compatibility or kinametics conditions for underdeterminate structure of a material?

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Step 1

There are two methods for analysis of indeterminate structures.

1) Force compatibility method:-

The unknowns are taken as internal member forces or reactions.

Displacement/Stiffness method

1. The unknowns are taken as joint displacement.

2 To find unknowns compatibility conditions are written.

Number of compatibility conditions needed = Number of redundant forces

= Degree of static

3. This method is suitable when Ds,<Dk,

4. Examples: Strain energy method or

minimum potential energy method, Castingliano's theorem, unit load method. virtual work method, column analogy method, three moment method, flexbility.

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