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The document classifies various structures as statically determinate, statically indeterminate, or unstable based on their supports and connections. It provides specific degrees of indeterminacy for the indeterminate structures. The classifications for each structure (a to e) are listed with corresponding answers.

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479 views1 page

2 11

The document classifies various structures as statically determinate, statically indeterminate, or unstable based on their supports and connections. It provides specific degrees of indeterminacy for the indeterminate structures. The classifications for each structure (a to e) are listed with corresponding answers.

Uploaded by

2020211306
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© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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© 2012 Pearson Education, Inc., Upper Saddle River, NJ. All rights reserved.

This material is protected under all copyright laws as they currently


exist. No portion of this material may be reproduced, in any form or by any means, without permission in writing from the publisher.

2–11. Classify each of the structures as statically


determinate, statically indeterminate, or unstable. If
indeterminate, specify the degree of indeterminacy. The
supports or connections are to be assumed as stated.

(a)

(b)

(c)

(d)

(e)

(a) r = 5 3n = 3(1) 6 5
Indeterminate to 2°. Ans.

(b) Parallel reactions


Unstable. Ans.

(c) r = 3 3n = 3(1) 6 3
Statically determinate. Ans.

(d) r = 6 3n = 3(2) 6 6
Statically determinate. Ans.

(e) Concurrent reactions


Unstable. Ans.

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