All Questions
Tagged with structural-engineering foundations
20
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Mat Footing (Bending Moment Issue of the Short Strip)
Hi I'm a civil engineering student, I wanted to ask for help and clarification for the design of mat footing. I used the Rigid method and based my design on the ACI 336_2R and Foundation Engineering ...
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Mass Brick Settling Causing Excess Load On Center Beam
I live in a 115+ YO building and recently had my kitchen remodelled. During this the subfloor was replaced (old 1x6s in bad shape). I noticed a significant bow in the joists with the central steel ...
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votes
1
answer
48
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Shoring beams properly installed?
Question about a home my wife and are looking at purchasing. The garage had an office/apartment on the second floor, and the seller disclosed that the floor had sagged and been fixed with shoring ...
- 103
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Wood vs steel supports for small bridge
I'm interested in building a small access bridge across a creek on my farm. This bridge will be approximately 5m long and 3m wide and my tractor is about 4000 pounds. I read somewhere a long time ...
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224
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PE exam: situations in which two question choices are close to my final answer: how to pick one?
Consider this question:
I solve this eventual question and my answer is 7.29667:
Among the question choices are 7 x 7 ft and <...
- 151
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votes
2
answers
40
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Small building basement foundation moisture: permeable vs impermeable
I understand that moisture is the enemy of interiors. I know that the standard basement foundation for a house-sized building uses moisture barriers on the outside of concrete retaining walls to ...
- 21
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2
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9k
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What does "crs" mean in structural engineering / construction?
In the realm of structural engineering, construction, foundation design, what is "crs" when talking about piles/posts? Is it an abbreviation? Does it refer to some sort of size?
Some ...
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How do extra building levels affect the foundation design apart for the extra load?
I have been talking to some structural engineers trying to find one to design foundations for my contemplated bespoke building based on hi-cube 40-ft shipping containers. The initial concept is just ...
- 211
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Distance of raft foundation outwards
Can you tell me (for USA) which code (or standard or guide) and in it where exactly I can see the distance required for the raft foundation, as far as how much it should extend horizontally beyond the ...
- 462
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9k
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At what level is the Grade Beam most effective at pile cap level or at Slab-on-grade level?
The primary two functions of a Grade/Tie Beam in spread footing and/or pile caps foundation system is to support the Slab-On-Grade (S.O.G) and/or to take the moment from eccentric footing (or moment ...
- 503
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What is the purpose of building foundations?
According to many sources, one of the purposes of building's foundations is "To distribute the weight of the structure over large area so as to avoid over-loading of the soil beneath." (Wikipedia)
On ...
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8
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Why is this construction site pouring gravel over a wire mesh, and then covering it with dirt?
My office is afforded a prime view of a construction project where the workers are currently covering the leveled ground in a wire mesh, raking gravel across the entire mesh, and then covering that ...
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2
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Affect of Cast in Pipes in a 1m thick Raft Slab on shear
I am designing a 1m thick raft slab and the drainage guys have thrown in 100mm diameter cast in pipes all over the raft. See Attached images 1 & 2. Wondering how this will affect the shear in the ...
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3
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3
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6k
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Building Uplift due to water pressure
I have a building that is 7 story height (which 5 stories are basement floors which means they are underground) My water level is at 1.5 m from the surface. the stories have typical rectangular shape ...
- 503
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Can shear links be designed to hook between inner layers of top and bottom reinforcement?
I am tasked to design a bridge pile cap. Shear links are required. However due to heavy reinforcement used, contractor requested to hook the links between inner rebars to ease construction. Is this ...
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