I am designing a 9 inch thick, elevated, one-way reinforced (continuous top and bottom), structural concrete slab. The slab and associated support members (grade beams) will be formed and poured seperately. The slab has a cover of 1-1/2" typical top and bottom. The longitudinal reinforcing is...
I am designing an elevated, one-way reinforced concrete slab. The slab thickness is 9 inches. The primary reinforcment is #9 @ 11" oc top and bottom with cover of 1.5" top and bottom. The temperature steel is #5 @ 16" oc. The slab is for a 20,000 sf building. I am determining where to place...
Where do I find the ACI code requirements for the spacing of stirrups across the section of a wide beam. I am detailing a 36" deep x 24" wide concrete grade beam and would like to know how many longitudinal bars to include in each closed stirrup.
Can anyone clearly explain what ACI 318 section 10.7 means by a deep beam with regard to section depth and span length? I am getting differing opinions. The code section states:
"Deep beams are members loaded on one face and supported on the opposite face so that compression struts can...
I am looking into designing some beam to column moment connections. The intent is to use HSS sections for the members (beams and columns) of the frames of the lateral force resisting system for the structure. I am not finding much information for this type of connection in the AISC manual or...
I am working on a house located in the coastal area Virginia. Typical loads include: 110 mph wind, 20 psf roof live/snow. The attached sketches show the framing of the garage which includes 2x10 rafters, 2x8 ceiling joists adn 2x4 stud walls all at 16" o.c.
The room over the garage vaulted...
I have a client who wishes to build a crawl space under his home which is currently on a slab on grade. (The house has been flooded twice in the last 3 years.) The house was built in the late 1940's, is a single story structure with a flat roof. The exterior dimensions of the house are 60' x...
I am preparing to write field report and reviewing a mortar compressive strength test report and note that the 28 day compressive srength is a bit lower than the 28 day design strength (1400 psi vs. 1800 psi). The wall constructed with the sampled mortar is 8" c.m.u. reinforced with #5 @ 32"...
I have be asked to design a one story 20' x 12' sun room out of wood. It will have a gable roof with a mean roof height of 15'. The sun room is to be placed the back of a two story brick veneer house. It will be located in a 100 mph wind zone. The client wishes to have the sunroom built on a...
I working with clients on a residential floor plan design that includes radius or curved wood stud wall construction. I am unsure how the current IRC building code views such construction particulary in terms of lateral wall bracing. Does anyone know where I can obtain information concerning...
I am working on a project that involves adding office space to an existing 14’ tall single story building. The building is about 60 years old constructed of c.m.u. block walls. The plans indicate demolishing an existing 6” exterior slab on grade (approximately 40’ x 12’) and replacing it with...
