2 way solid slab with edge and internal beams
2 way solid slab with edge and internal beams
(OP)
Hello, I hope you all doing well. I wanna ask the people here who have experience in designing 2 way solid slab with beams (manual design).
What is the best method for analysis and design in terms of accuracy and ease ?
What is the best method for analysis and design in terms of accuracy and ease ?






RE: 2 way solid slab with edge and internal beams
I like to debate structural engineering theory -- a lot. If I challenge you on something, know that I'm doing so because I respect your opinion enough to either change it or adopt it.
RE: 2 way solid slab with edge and internal beams
What about Strip method or coefficient method ? ( as manual design )
RE: 2 way solid slab with edge and internal beams
It's perfectly applicable to real life within the limitations of the method. The method was vetted on countless real world projects in the decades leading up to the development of practical commercial software for use slab design.
Frankly, it's hard to imagine a hand calculation procedure that would be quicker. In Canada, our code has a coefficient method for the, practically instant, design of individual rectangular plates via coefficients. If that's your situation, I can share additional detail.
The direct design is a coefficient method. The strip method and the yield line methods are both valid strength techniques but neither has much to say about deflection which tends to limit their use. I guess you could use them in conjunction with span to depth limits as is often done with the DDM.
A plan sketch of your situation might help us to recommend the most suitable slab design methods.
I like to debate structural engineering theory -- a lot. If I challenge you on something, know that I'm doing so because I respect your opinion enough to either change it or adopt it.
RE: 2 way solid slab with edge and internal beams
And for a typical waffle slab what do you recommend ?
Also can you recommend me some books for slabs ? I want something easy to understand with solved example in it if possible.
RE: 2 way solid slab with edge and internal beams
You're most welcome. That second method that's included in the Canadian code that I mentioned sounds quite similar.
In many respects, a waffle slab behaves quite like a flat plate slab so any method that works for one stands a pretty good chance of working for the other. Personally, I like to start with the CRSI manual tables.
I've never been able to find an all encompassing slab design book to my liking really. Have you settled on the method that you want to use? That would narrow down your book choices.
MacGregor's book has an chapter on slab design, with extensive examples. Most of that is DDM though.
Park's book is good on the theory but doesn't have very extensive examples.
I like to debate structural engineering theory -- a lot. If I challenge you on something, know that I'm doing so because I respect your opinion enough to either change it or adopt it.
RE: 2 way solid slab with edge and internal beams
I will certainly check the books. Thanks.
RE: 2 way solid slab with edge and internal beams
I like to debate structural engineering theory -- a lot. If I challenge you on something, know that I'm doing so because I respect your opinion enough to either change it or adopt it.
RE: 2 way solid slab with edge and internal beams
All using equivalent frame.