How do beams differ from truss elements Stephanie Redfern @The Mechanics

Question 2 / 40: How do beams differ from truss elements?

A Beams are wider and stiffer than truss elements.

B Beams are solid, but truss elements usually have void spaces for weight concerns.

C Beams have more complex cross sections than truss elements.

D Truss elements are usually pin connected and carry only axial loads, but beams may have connections
like welds that impart transverse loads.

E Truss elements are subject to bending forces, but beams are not.

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Explanation:

The conventional language of mechanical engineering uses truss elements for structures that support only axial loads; they are pin connected and are free to rotate at joints. Beams may carry transverse loads; consider, for example, a floor joist.

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Mechanics I ME102

Author:

Stephanie Redfern

The Saylor Foundation

USA

Access: Public Instant Grading

Attribution: Stephanie Redfern, Ranjeet (Ron) Agarwala, and Dr. Steve Gibbs. Mechanics I. The Saylor Academy 2014, http://www.saylor.org/courses/me102/

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