why two span continuous beam has negative moment at support 1

[johny13]

why two span continuous beam has negative moment at support

 

[hokie66]

Because the top of the beam is in tension.

 

[MiketheEngineer]

Did you miss class that day??

 

[msquared48]

A two span beam has three supports. Which one ya talkin' about?
Please keep your comment positive.

Mike McCann
MMC Engineering

http://mmcengineering.tripod.com

 

[Qshake]

Also what loading.....spans could be paritially loaded and not have full uniform load over both spans....

Regards,
Qshake

Eng-Tips Forums:Real Solutions for Real Problems Really Quick.

 

[MiketheEngineer]

M^2

I agree with keeping comments positive - but that is basic statics!!!

 

[johny13]

i knew the answer that, for conti.beam, maxm. -ve moment is at support. and it is due to why....but i am looking for very specific answer, which i have not received. (regardless of tension and comp. what that causing it negative moment.) but anyways, i found it from one of reference book...thanks for keeping my quesiton at basic....

 

[rapt]

luharr,

If you have a question you should ask all of it. You question asked nothing specific but you want a very specific answer. We cannot read your mind so how can we answer a question that is not asked.

All you have done is wasted our time no matter what Mike^2 may think.

No all we really want to know is what was the real question!

 

[msquared48]

MtE:

I think you missed my allusion here. I was not referring to your answer about being "positive". I was referring to statics, speaking with a forked tongue as usual.

Mike McCann
MMC Engineering

http://mmcengineering.tripod.com

 

[MiketheEngineer]

Sometimes - I can be very dense - just ask my wife