HES1125 Unit 3 L2[1]

# HES1125 Unit 3 L2[1] - UNIT3INTERNAL LOADINGS Lecture2...

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UNIT 3 INTERNAL  LOADINGS Lecture 2  Section 7.1  Internal Forces Developed in Structural  Members

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2 Objective To determine  the internal  forces in  structural  members
3 APPLICATIONS Why are the beams tapered? Is it because of the internal forces? If so, what are these forces and how do we determine them? These beams are used to support the roof of this gas station.

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4 Usually such columns are wider at the bottom than at the top. Why? Is it because of the internal forces? If so, what are they and how do we determine them? A fixed column supports this rectangular billboard.
5 The concrete supporting a bridge has fractured. What might have caused the concrete to do this? How can we analyze or design these structures to make them safer?

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6 INTERNAL FORCES The design of any structural member requires finding the forces acting within the member to make sure the material can resist those loads. For example, we want to determine the internal forces acting on the cross section at C. First, we first need to determine the support reactions. Then we need to cut the beam at C
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## This note was uploaded on 09/29/2010 for the course MECHANICS 445896 taught by Professor Lauren during the Three '10 term at Swinburne.

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HES1125 Unit 3 L2[1] - UNIT3INTERNAL LOADINGS Lecture2...

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