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Limitations of Controlling

The order for...

Question

The order for the flexibility matrix for a structure is,

A

equal to the number of redundant forces

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B

equal to the number of redundant forces plus three

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C

less than the number of redundant forces

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D

more than the number of redundant forces

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Solution

The correct option is A equal to the number of redundant forces
equal to the number of redundant forces

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Similar questions

Q. Consider the following statements related to flexibility matrix
1. Elements along the diagonal of flexibility matrix are always positive.
2. Elements of this matrix are forces
3. Flexibility matrix can only be formed for the structures in which no rigid body displacements occurs,also,it should be stable.
4. Flexibility matrix is a symmetric matrix about the main diagonal.
Which of the above statements are incorrect:

Q. The first row of flexibility matrix for the co-ordinate system as shown in figure is :

Q. The flexibility matrix for beam system shown below for the assigned co -ordinate system is

⎡ ⎢ ⎢ ⎢ ⎣ \begin{matrix} \frac{1000}{3 E I} & \frac{2500}{3 E I} \frac{2500}{3 E I} & \frac{3000}{3 E I} \end{matrix} ⎤ ⎥ ⎥ ⎥ ⎦

The reaction at support B is:

Q. The stiffness matrix of a beam element is given as

\frac{2 E I}{L}

[\begin{matrix} 2 & + 1 + 1 & 2 \end{matrix}]

Then the flexibility matrix is

Q. Derive the flexibility matrix for the simple beam of span L and flexural rigidity EI shown in figure subjected to end moments

M_{1} a n d M_{2}

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