For a beam, if the number of its unknown support reactions is 5, then this beam isunstablestatically determinatestatically indeterminate

Answered: For a beam, if the number of its…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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For a beam, if the number of its unknown support reactions is 5, then this beam is
unstable
statically determinate
statically indeterminate

Expert Solution

Step 1

For a beam, if the number of its unknown support reactions is 5 then the beam is statically indeterminate beam. As the number of equations can be 3 which are as follows:

$\sum_{} F_{x} = 0 \sum_{} F_{y} = 0 \sum_{} M = 0$

As the number of unknowns are more the the number of equations present, then the structure will be indeterminate structure.

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