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(Solved): Refer to the reinforced concrete floor plan of an office building shown in Figure 1 . The reinforce ...
Refer to the reinforced concrete floor plan of an office building shown in Figure 1 . The reinforced concrete column (C1) is supported on a reinforced concrete spread footing (F1) founded on soil as shown in Figure 2 (cross-section A-A of the floor plan). The design information of the footing is given below: Design Parameters: - Characteristics strength, fc′=32MPa - Column cross section =350mm×350mm - Beam cross section =350mm×600mm - Allowable soil bearing capacity (qa)=150kPa - Footing =0.8m×0.8m×0.5m (deep) - Yield strength of steel reinforcement (f5y)=500MPa - Specific weight of concrete (γ) is 24.6kN/m3. - Adopt N20 bars for main reinforcement - Clear cover =70mm. - Minimum reinforcement requirement, ρmin (two way slab) =ρ. - Live load on slab, Q=3kPa - Carry over moment =50% of distributed moment Figure 1: Reinforced concrete floor plan Figure 2: Cross section A-A of the floor plan (Figure 1) If the effects of any moments in the column and the self-weight of the footing are to be ignored: Determine applied bearing pressure at ultimate load (qu) for footing F1.
To determine the applied bearing pressure at ultimate load for footing we need to consider the load effects on the footing, including the self-weight of the footing and the applied loads from the column and beams. Given:- Characteristics strength...