(Solved): Check for Development Length andDesign the Dowels for each column? A combined footing supports a 600 ...

A combined footing supports a $$600\times 400\mathrm{mm}$$ exterior column carrying a service dead load of $$900\mathrm{kN}$$ and a service live load of $$675\mathrm{kN}$$, plus a $$600\mathrm{mm}$$ square interior column carrying a service loads of $$1350\mathrm{kN}$$ dead load and $$1000\mathrm{kN}$$ live load. The distance between the columns is $$6\mathrm{m}$$, center to center. The allowable soil bearing pressure is $$240\mathrm{kN}/{\mathrm{m}}^2$$. The basement floor is $$125\mathrm{mm}$$ thick and supports a live load of $$4.6\mathrm{kN}/{\mathrm{m}}^2$$. The density of the fill above the footing is $$20\mathrm{kN}/{\mathrm{m}}^3$$. The bottom of the footing is to be $$1.5\mathrm{m}$$ below grade. Design the footing assuming that $$f_y=420\mathrm{MPa}$$ and $$f_c^{?}=21\mathrm{MPa}$$ in the footing and $$f_c^{?}=35\mathrm{MPa}$$ in the column. Concrete is normal weight concrete with unit weight $$=24\mathrm{kN}/{\mathrm{m}}^3$$.