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Beam with internal hinge!!

 
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simran_shahani
SEFI Member
SEFI Member


Joined: 26 Jan 2003
Posts: 7

PostPosted: Sun Oct 03, 2004 7:15 am    Post subject: Beam with internal hinge!! Reply with quote

Well, i need a physical imagination of the following concept/ fact:

If  a beam has internal hinges then the degree of freedom increases depending on the position of hinges.If a continuous beam has an internal hinge at a point say "C" between supports "A" and "B"  then the possible independent displacements at this hinge are two rotations and one vertical translation(considering the beam to be axially very stiff).The spans AC and BC would be considered as separate spans, right?The beam would loose its continuity at point "C" where the hinge is located.Right?I am not able to sense this physically,that how the rotations on the left of the hinge and on the right of the hinge be different??
Can anyone help me with this and explain it in a physical sense!!!!!


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