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Over hang beam

 
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dndhastak
SEFI Member
SEFI Member


Joined: 10 Apr 2012
Posts: 13

PostPosted: Thu Apr 07, 2022 7:37 am    Post subject: Over hang beam Reply with quote

Need a spread sheet for Overhanging beam design
thnx.

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vikram.jeet
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Joined: 26 Jan 2003
Posts: 3903

PostPosted: Sat Apr 09, 2022 2:49 am    Post subject: Reply with quote

If a spread sheet is made , it is good but an overhang beam is a simple cantilevered beam and is a determinate structure with known values of BM due to UDL as well as Point loads. And also SF.

But most important part of overhang beam is how the overhanging cantilevered Moment is balanced .
If this beam emerges from a brick wall , it must be continued behind by at least 1.5 to 2 times cantilever length to achieve stabilizing moment with a FOS of 2.0 .
It is advised to provide rcc column at root of cantilever in case of load bearing construction to take care of vertical reaction which is enhanced due M/L effect. The moment from cantileverd overhang is , though , balanced by extension of this cantilever beam at back .

As I reiterated earlier on spread sheet , it must be prepared by engineer himself , though learning from other designer's spreadsheet gives learning .

A Lion eats what it kills self.
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