- #1
benl87
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Homework Statement
Hi there,
I have an exam coming up regarding reinforced concrete, the question is to be similar to the one in the attached brief. It shows all the variables and given data. I apologise as I have already posted this question elsewhere but I don't think I laid it out properly or showed enough working of my own. My teached has been little help to me and I am hoping someone can comment on my work and tell me if I'm on the right track. Big thanks to Studiot who has helped me significantly so far.
Homework Equations
The loads are to be considered using limit state theory (i.e. Design Loads = 1.2G (dead load) + 1.5Q (live load))
I have assumed the structure (refer brief for layout) will be several portal frames without the need for a slab. I have been told to solve the frame using the moment distribution method which I have attempted to a point in the attachment.
The Attempt at a Solution
I have attached my attempt at a solution to the post and hope it makes some sense.
My plan of attack following where I am now up to is as follows:
-Solve shear force for the beam
-Solve negative moments (wl²/10), positive moments (wl²/11 in end spans, wl²/16 in interior spans) and transverse design shears (at face of interior support, at mid-span and end supports)
-Confirm beam resists encastre beam deflection (wl³/192EI for point loads and wl^4/384EI for udls)
-Calculate column size using moment about beam/column connection and vertical axial load transmitted from beam
-Calculate footing sizes considering ground bearing pressure, bending at the base, shear at the base and punching shear.
Thanks in advance,
Ben
