Simply supported, or fixed beam ?

@Jeffrey Arulraj • 15 Sep, 2012 what is a ceiling joist can any one post a picture of it

@pikachu1994 • 15 Sep, 2012 • 1 like

jeffrey samuel

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

@Jeffrey Arulraj • 16 Sep, 2012 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 • 16 Sep, 2012 • 1 like 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 • 17 Sep, 2012 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 • 17 Sep, 2012 it is continuously supported held there is provision either to fix it or let it be free

@vamsi kancharla • 06 Oct, 2012

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

@Jeffrey Arulraj • 06 Oct, 2012 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

@Mohamed Amir • 03 Nov, 2012 it is partially not totally fixed.......