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mobility or DoF of a statically indeterminate structure is always less than zero and also we can have negative value of mobility.
for checking this
we have to see the Gruebler's criterion , wher
D.F= 3(Movable link - 1) - 2*(number of Single D.F of kinematic pair) - ( number of two DF of kinetic pair)
therefore, according to definition of satatically indeterminate structure have zero movable link . hence D.F will be either zero or negative.
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Explain statically indeterminate structure?
The structures which cannot be solved by the equilibrium equation are known as indeterminate structures.
What are advantages of statically indeterminate structures in construction?
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Redundant forces are chosen so that the structure is stable and statically determinate when you remove these forces. So, if you have two degrees of indeterminancy, you will have to remove two forces, remove three for three degrees, and so forth. Redundant forces are usually found when you have reaction forces AND a displacement, as it is obvious one caused the other. So when you remove these forces, the displacements are still there, and the structure has not changed, except that it is now statically determinant, and you can use method of superposition to figure out all your unknowns :)
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Explain statically indeterminate structure?
The structures which cannot be solved by the equilibrium equation are known as indeterminate structures.
Why use Statically indeterminate structures?
Statically indeterminate structures allow for more efficient use of materials and can accommodate larger loads compared to statically determinate structures. They also provide more stability and allow for more creative and innovative designs in engineering and architecture.
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What are advantages of statically indeterminate structures in construction?
they can redistribute the load and have greater moment capacity
What is the best structure?
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How do you determine redundant forces in a statically indeterminate structure?
Redundant forces are chosen so that the structure is stable and statically determinate when you remove these forces. So, if you have two degrees of indeterminancy, you will have to remove two forces, remove three for three degrees, and so forth. Redundant forces are usually found when you have reaction forces AND a displacement, as it is obvious one caused the other. So when you remove these forces, the displacements are still there, and the structure has not changed, except that it is now statically determinant, and you can use method of superposition to figure out all your unknowns :)
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What has the author Clarence W Hudson written?
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What has the author W Fisher Cassie written?
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What is the difference between statically determinate and indeterminate beam?
A statically determinate beam can have its reactions and internal forces completely determined using equilibrium equations, while a statically indeterminate beam requires additional equations beyond equilibrium to solve for all reactions and internal forces. Statically determinate beams have a fixed number of unknowns that can be solved using statics principles, whereas statically indeterminate beams have more unknowns than can be determined with statics alone.
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