Primary grid on the plan for the discrete and integrated isolated footing model is shown in Fig.
For discrete and integrated isolated footing model the foundation thickness under the corner, exterior and interior columns are 300mm, 375mm and 450mm respectively.
Discrete and Integrated Isolated Footing Models: Detailed investigation of these models showed that column with large footing area attracts more moments at column base and hence results in more reinforcement ratio.
Almost all beams showed less reinforcement in discrete model as compared to integrated isolated footing model.
Isolated Footing Moments: Table 8 indicates less footing moment on Grid 2A on isolated footing of discrete model.
With increase in thickness, integrated strip and isolated footing columns result showed little or no similarity to that of discrete model.
The exterior columns show 19% less steel and interior columns 13% more in integrated super and substructure isolated footing model as compared to discrete superstructure model.
This study also includes the design of integrated strip and integrated isolated footings modeled with superstructure.
Computer modeling: Linear static and linear dynamic analyses have been carried out on hypothetical building models l with the raft, strip and isolated footings. Buildings are modeled on SAP2000, ETAB-9 and SAFE commercial programs.