So I'm designing a simple two story classroom with CMU Corridor walls and CMU exterior walls (see attached pdf) The walls are typically spaced at 36-8.67-36 spacing. So over the classrooms I could easily use a 28LH770/300 bar joist to support a DL =94 psf and a LL = 60 psf. OK so a fairly...
OK so I have a light-gage steel wall that is about 18 feet tall. The top of the wall is braced by a horizontal stud that runs from metal building Frame to metal building frame. It is about 20 feet long. I'm using 600S200-54 stud as the horizontal brace. The weak axis is unbraced. If...
I have a monolithic poured metal building slab/foundation measuring 32 ft x 24 ft. I've decided to place one control joint in each direction turning the slab into four 16 ft x 12 ft section. Because there will be heavy forklift type loads I designed to use sawn control joints with 3/4" x 14"...
I recently posted here a question regarding a Catwalk design that some of you might remember. Of course this was a portion of the design in a much larger project. My agreement with the architect per the signed proposal was that I would provide the structural engineering design, analysis, and...
I'm not sure there is a correct answer to this but a little advice would help. I have a metal building where the owner has mezzanines to the far left and right hand sides of the building. In the middle is a 50 foot length of clear space. There are stairs up to the right mezzanine and plans...
I'm in Florida and I've an issue that arises every now and then. Typically builders like to use monolithich turned down slab foundations to support 2x4 or ICF walls for residential construction. I have always told architects and builders to switch to spread footings when the soil pressure is...
OK so I designed a beam to column connection with the beam cantilevering over a column cap plate. Its a very small project and normally I might have never even seen the in field condition because the project is so small. But I did and a instantly noticed that the cap plate on the column was...
What importance Factor would you recommend for a 16ft tall school sign that would be located in an area away from the ordinary walk paths. Sign to be located in Florida so hurricane winds control the design.
ASCE and the Florida Building Code don't really help much and this seems to be a...
Does anyone have any code reference, rule of thumb, or calculation method to determine what the maximum wall control joint spacing can be for a long ICF wall. With tilt-up I've gone a bit over 30 feet before with no problem. Of course these walls are exposed. I've even tied up to three...
I was performing a threshold inspection on a project of mine and caught the mason pouring grout into a short section of wall using a grout mix that had been in the truck between 2 and 2.5 hours. The maximum allowed mixing time per the masonry spec is 1.5 hours. Though you can extend that pour...
Perhaps we should all brain storm to come up with a solution to the blown out well in the Gulf of Mexico. I may be really late so if there is already another thread please let me know. Here is my idea though it would take a while.
I suggest building Circular pyramid using fast curing...
I am designing a 6 1/4 inch wide ICF wall beam with an 18 foot span. I have 9 feet of wall between the top of wall and top of opening. Since its an ICF wall I want to avoid shear stirrups if possible. I'd like to place (2) #5 bars above the opening along with typical horizontal wall and...
I have an upcoming project where the second floor will be used to store cars. It is not a parking garage in the sense that cars will be coming and going daily. It will be covered with a roof and enclosed with CMU walls. Think of it as a second story car showroom. I plan on asking what the...
Note 6 in ASCE 7-02 Figure 6-10 states, " Except for moment resisting frames, the total horizontal shear shall not be less than that determined by neglecting wind forces on roof surfaces.
The question is what does it mean by roof surfaces For 3:12 and 4:12 roof slopes the net horizontal forces...
