I have a 4 story building that is 119' long by 25' wide. The lower floor has an elevated slab. Which is more economical?
1. Design the slab as a 1 way slab in the 25' direction?
2. Add beams down the 119' direction and design as 1 way slab.
3. Do number 2 and design as 2 way slab.
Does anyone know of a calculation procedure for enlarging an existing column footing due to additional loading? At the interface of the new concrete where bars embed in to the existing footing, there should be a calculation to determine the bars size and spacing based on the new loading. I've...
I trying to find an example of how to design a interior non-loading bearing cmu wall for out of plane seismic loading. Does anyone know of such example
I have a project in which I've just received the concrete mix design. The air content is 10% (by volume). I know the normal range should be around 6% to 7% (if subject to freeze/thaw) so I'm trying to figure out what would be the adverse effects of high air content in concrete. I know it may...
I have a project that involves and existing building with a two-way slab floor system with concrete shear walls. I want to add steel braced frames as some of the shear walls are failing due to the additional mass of an additional floor we are adding. When using a mixed system for lateral such as...
I have a project which involves a hospital designed in 1978. The client wants to add another floor above a section of the hospital which was never designed for future expansion. The roof is waffle slab construction design for a 55 psf live load. We need to get 105 psf live load for the new...
I HAVE A 2 STORY BUILDING
14' TO THE SECOND STORY LEVEL
14' TO THE ROOF LEVEL
AND 3' OF PARAPET
THE DESING BASE SHEAR IS 398 K
DOES ANY ONE HAVE A SIMPLE METHOND OF DETERMINING THE HORIZONTAL DISTRIBUTION?
I am in need of a good example or direction to design a tapered steel beam. The beam is a W16X36 with an 8" x 24" taper at the end. Can someone please give me some direction?
I know that the latest craze right now is Building Information Modeling!
But what does that do to the engineer and/or the CAD operator. Its seems to me that the engineer will be forced to become the CAD guy. If not, then how does the CAD operator know what size beam or column to put where...
I am an EIT with a question about concrete pad design for heavy equipment such as generators, HVAC units, etc.
What is an accepted method for the design approach? I know that a turned down edge footing is typical, but what drives the dimensions of it?
