All Questions
Tagged with structural-engineering civil-engineering
295
questions
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Design a string
Consider a string with a mass attached. The string is fixed to the support above, and the mass is hanged at the other end. Is it possible to design the string for the following two cases?
The mass is ...
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26
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Are mutli-story structure slabs poured on-center?
What exactly does it mean to have a multi-storey building where each storey is 2.4 meters?
I've read a lot of descriptions of buildings that say each storey is "2.4 meters" or "3 meters&...
- 225
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31
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Why do period and damping ratio affect acceleration?
In the table above, the period of the structure $(T)$, the acceleration coefficient on the structure ($g$ in terms of gravitational acceleration) $Sa(T)$, The damping ratio is expressed as $ζ$ .
As ...
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1
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62
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Is there any standard procedure or guideline to solve complex asymmetrical trusses such as saw tooth type of truss used for polyhouse construction?
I want to solve for the dead load,live load as well as wind load for a saw tooth type of truss, which is asymmetrical in nature....generally used for the construction of greenhouse. I also want to ...
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How would you go about the steel columns being adjacent where an expansion joint is expected?
The building is a steel building with a composite slab.
The expansion joint is required because the building is 60m in length.
The problem is where the expansion joint is expected, the columns are ...
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60
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How to calculate the height of the supporting structure of an arch and the thickness of an arch in relation to its span
Please refer to the attached image.
We know that if an arch is X unit wide then the supporting walls should not be less than X/4 unit width for the structural stability.
I would like to understand ...
- 101
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Buckling length of continuous steel H columns in multi story buildings
I have seen that steel columns in multiple story buildings span multiple stories, in that case how do you calculate the buckling length for the column? do you take the whole column's height, or just ...
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Find the internal bending moment, Mc
A 7meter,m, long cantilever beam whose weight per meter is 19Newton, N, carries a load that varies uniformly from 43N/m, (Newton/meter), at the inbuilt side, point A, to 0 at the free end, point B. ...
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63
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Counterweight requirement and platform design for motorised speaker stand stability
I recently bought my dream speakers (Dutch & Dutch 8c), but at the cost of having to preserve a minimalist interior for the sake of household peace. To that effect, I plan to construct motorised ...
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Question in Reinforced Design Course - One Way Slab ACI code
Establish the thickness of the floor slab shown of figure below (for section 2B1-
2B2-2B1) for a service live load of 4.8 kN/m2
. Use f'c = 25 MPa, fy = 400 MPa, and
ACI code. Show all your step-by-...
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2
answers
256
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Shear Force in Inclined Beam
Suppose I have an inclined beam with a UDL applied vertically downwards, will the shear force act normal to the beam, or vertically?
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2D frame analysis by open-source Lua code
There are great apps for 2D frame analysis like the one mentioned here:
https://engineering.stackexchange.com/a/50967/15178
I'm just wondering if anyone knows an open-source Lua code for 2D frame ...
- 151
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57
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Pumping water from under concrete slab basement
I have this situation, and wanted someone's opinion.
Info:
Concrete foundation basement, slab floor
Weeping tiles and a sump pump is present / operational
The house is near a pond.
Grading is alright,...
- 11
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189
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Calculating the plastic section modulus, Z, of an arc of a circle
I am trying to find a simplified formula for determining the plastic section modulus, Z, of an arc of a circle.
In my case, I have a 20" diameter 0.375" thick pipe and I am cutting a 6" ...
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2
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287
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Lateral load calculation at the bottom of an arch
I am trying to find out how much lateral thrust an arch produces when applying a load evenly distributed across its span. There are a lot of 'complex' models around and full analysis done case by case ...
- 111