A truss that is pinned at one end and on rollers at the other will be statically

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A truss that is pinned at one end and on rollers at the other will be statically determinate if it satisfies the following equation:

0 = 2j - m - 3

where j is the number of joints and m is the number of members. This is a quick way to check for static determinacy without drawing the FBDs. Apply this equation to:

a. Verify that the trusses in Exercises 7 through 12 are statically determinate.

b. Sketch three statically determinate truss bridges with the following numbers of members: (1) 11 members, (2) 15 members, and (3) 19 members.

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Exploring Engineering An Introduction to Engineering and Design

ISBN: 978-0123747235

2nd edition

Authors: Philip Kosky, George Wise, Robert Balmer, William Keat

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