No. of Layer g (kN/m3) hs (m)
5 - -
4 - -
3 - -
2 18 2.2
1 20 2
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Reinforced Concrete Tank Design
hw = m Walls tw = mm Wx = Wy = m m Rebars in vertical direction: @ mm Horizontal rebars at midpoint (X): @ mm Horizontal rebars at edge (X): @ mm Horizontal rebars at midpoint (Y): @ mm Horizontal rebars at edge (Y): @ mm Mwv = kN.m/m Max. Internal forces in Walls:
RCTank.exe (FEA)Clicking button Delete can delete the top layer of soilClicking button Edit can add a new layer of soil, or update existing layer of soilAll internal forces are per unit width (/m) Ghali A., and Favre R., Concrete Structures: Stress and Deformations. Chapman & Hall, London. Rectangular Concrete Tanks , 5th Edition, Portland Cement Association References:Wx >= Wy, Lx >= LyInternal forces are from Finite Element Analysis (FEA) or tables of reference 1Notes:
Internal forces in Walls (Horizontal Direction): Mwxm = kN.m/m Mwxe = kN.m/m Mwym = kN.m/m Mwye = kN.m/m kN/m Cwxm = kN/m kN/m kN/m Cwxe = Cwym = Cwye = Case 2, Inside Empty, Outside with Soil Vw = kN/m kN/m Cvw =
Internal forces in Walls (Horizontal Direction): Mwxm = kN.m/m Mwxe = kN.m/m Mwym = kN.m/m Mwye = kN.m/m kN/m Twxm = kN/m kN/m kN/m Twxe = Twym = Twye = Case 1, Inside with Full Water, Outside without Soil Vw = kN/m Tvw = kN/m
Reinforced Concrete Tank Design
Bottom Slab mm m Lx = Ly = Rebars at top in X direction: m @ ts = Rebars at bottom in X direction: @ Rebars at top in Y direction: @ Rebars at bottom in Y direction: @ kN.m/m Msxm = Msxe = kN.m/m Msym = kN.m/m Msye = kN.m/m mm mm mm mm Internal forces in Slab: Vs = kN/m
Review Report
Others mm kPa q = c = f'c = fy = MPa MPa aL = ha = m nv = qs = kPa kN/m qe = k0 =
Layers of Soil kN / m3 g = Layer i = m hs =