Simply supported, or fixed beam ?

Replies

• 

  Jeffrey Arulraj

  what is a ceiling joist can any one post a picture of it
• 

  pikachu1994

  jeffrey samuel

  what is a ceiling joist can any one post a picture of it

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  Jeffrey Arulraj

  from picture there is no point in concluding that this is a simply supported beam
  
  the true definition of fixed beam is that the beam is attached to the column by some binders like RCC and stuff
• 

  Saiwal

  the beam shown in the picture is a continuous beam. Simply supported and fixed beams are ideal cases which rarely exist in real world applications.
• 

  zaveri

  let me tell you the difference between a fixed beam and a simply supported one;
  
  fixed beam: all degrees of freedom at the end points of this beam are arrested. in other words, the beam is stiffly fixed at both the ends.
  
  simply supported beam: degrees of freedom only along the y-direction is arrested. it can still move in the x and z-directions.
  
  now coming back to the ceiling joist, it appears to be fixed rigidly, so then how is it simply supported ?
• 

  Jeffrey Arulraj

  it is continuously supported held there is provision either to fix it or let it be free
• 

  vamsi kancharla

  zaveri

  What kind of a beam is a ceiling joist ?
  
  Obviously it sounds like fixed type. but last month i was going through a solid-mechanics text book, and it said that the type was simply supported.

  it is not simply supported it bears ceeling weight and transfers to ground through PILLARS or COLOUMNS
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  Jeffrey Arulraj

  yup but we don't see any fixing of the beam to any of them they are placed on top of em with out being clamped tight
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  Mohamed Amir

  it is partially not totally fixed.......