- published: 15 Apr 2011
- views: 229999
In engineering, a truss is a structure that "consists of two-force members only, where the members are organized so that the assemblage as a whole behaves as a single object". A "two-force member" is a structural component where force is applied to only two points. Although this rigorous definition allows the members to have any shape connected in any stable configuration, trusses typically comprise five or more triangular units constructed with straight members whose ends are connected at joints referred to as nodes. In this typical context, external forces and reactions to those forces are considered to act only at the nodes and result in forces in the members which are either tensile or compressive. For straight members, moments (torques) are explicitly excluded because, and only because, all the joints in a truss are treated as revolutes, as is necessary for the links to be two-force members.
A planar truss is one where all the members and nodes lie within a two dimensional plane, while a space truss has members and nodes extending into three dimensions. The top beams in a truss are called top chords and are typically in compression, the bottom beams are called bottom chords and are typically in tension, the interior beams are called webs, and the areas inside the webs are called panels.
Lecture Series on Mechanics of Solids by Prof.M.S.Siva Kumar , Department of Applied Mechanics ,I.I.T.Madras. Analysis of trusses using the method of arbitrary sections For more details on NPTEL visit http://nptel.iitm.ac.in
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Analyzing a simple truss using the method of joints
Shows how to use the method of joints to analyze the tension in truss members in a 5-joint truss. This video was created to support courses in the Engineering Department on the Polytechnic campus of Arizona State University. Links to other videos can be found at http://www.engineeringvideos.org This video is made available under the Creative Commons BY-SA license.
Buy here : http://www.beatport.com/track/brockweir-original-mix/5999172 Label: http://www.beatport.com/label/perc-trax/368 Truss: http://www.beatport.com/artist/truss/13114 Album info: http://www.factmag.com/2014/08/12/perc-trax-celebrates-10-years-with-slowly-exploding-compilation/ If you don’t want this track to be shared, please send me a message. Enjoy ;)
Truss analysis using Method of joints is elaborated in this video lecture with help of detailed animation. Here step by step procedure of analyzing a truss is elaborated. That is making free body diagram of truss, determination of reaction forces and applying concept of equilibrium of joints to each joint of truss to determine unknown forces in truss members.
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A how-to on homemade wood truss construction
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