(Solved): DESIGN OF A TWO-WAY SLAB SUPPORTED ON FOUR SIDES The general layout of a reinforced concrete office ...

DESIGN OF A TWO-WAY SLAB SUPPORTED ON FOUR SIDES The general layout of a reinforced concrete office floor is shown in the Figure. An allowance of 0.5 \\( \\mathrm{kPa} \\) is to be made for the partitions that are not deflection sensitive. The imposed (live load) is 3 \\( \\mathrm{kPa} \\). To satisfy the fire and durability requirements, take \\( \\mathrm{f}^{\\prime}{ }_{\\mathrm{c}}=32 \\mathrm{MPa} \\) and a suitable clear cover. Limit the total deflection to \\( \\Delta / L_{e f}=1 / 250 \\) and use Class \\( N \\) reinforcement. Design the reinforcement for the corner slab. Data Given: \\( E_{c}=30100 \\mathrm{MPa}, \\gamma_{\\mathrm{rc}}=25 \\mathrm{kN} / \\mathrm{m}^{3}, \\varepsilon_{\\mathrm{cs}}=600 \\times 10^{-6} \\) Concrete cover \\( =25 \\mathrm{~mm} \\) Design Workshop Assessment Tasks For the tutorial assessment: (i) Check the slab depth based on deemed to comply requirement prescribed in AS 3600-2018 (ii) Design for flexural reinforcement in short-span considering slab depth \\( D= \\) \\( 140 \\mathrm{~mm} \\) (iii) Check for Deflection: Consider: E At midspan: \\( I_{g}=232 \\times 10^{6} \\mathrm{~mm}^{4} ; M_{c r}=8.30 \\) \\( \\therefore \\mathrm{kN}-\\mathrm{m} \\mathrm{ad} \\mathrm{I}_{\\mathrm{cr}}=23.2 \\times 10^{6} \\mathrm{~mm}^{4} \\) At Interior Beam: \\( I_{g}=232 \\times 10^{6} \\mathrm{~mm}^{4} ; M_{c r}= \\) \\( 7.58 \\mathrm{kN}-\\mathrm{m} \\) ad \\( I_{c r}=24.7 \\times 10^{6} \\mathrm{~mm}^{4} \\)