BUILDING STRABLE AND FIXED BASE WITH SAP

CSE

Prior conventional building configuration chosen was regular or symmetrical building with fixed base. Practically speaking the building configuration need not be symmetrical always. In reality building rests on the soil. Usually flexible soil condition and nonlinearity of the building is neglected during analysis. In such case, the building is to be analyzed considering soil structure interaction and nonlinear conditions using appropriate software. The 3D model analysed using software should be a replica of realistic structure. In the present study a 10 storey, 3D irregular building is chosen and analysed using SAP 2000 V19.2.1 software. The irregularity chosen is in vertical direction with fixed base and with flexible soil base (continuum method). The irregular building is subjected to linear static analysis and non linear static pushover analysis. The results obtained for vertically irregular building are compared for fixed and flexible base for both linear and nonlinear analysis. The variation in displacement, base force and time period are observed. The building which displays better realistic results can be chosen for future reference.

This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.