Structural Safety Evaluation of Residential Apartment Located at Indore City Having Plan Irregularity and Considering Different Importance Factors

In the domain of structural engineering, significant focus has been placed on the issue of plan irregularities in multistoried buildings. Plan irregularities have been defined as the misalignment or displacement of structural components in relation to vertical load resisting members. To investigate this, a series of simulations were conducted considering importance factors of 1.0, 1.2, and 1.5 as per Indian standards (SS-A1 to G1, SS-A2 to G2, SS-A3 to G3). A total of 21 distinct cases involving plan irregularities were examined to develop a comprehensive understanding. By conducting the drift analysis as per special limitations for plan irregularities, the performance of each case has carefully documented. Among all variations, several cases like SS-A1, SS-B1, and SS-C2 remained well within the codal drift limits, even for Z-direction displacements. On the other hand, configurations like SS-G3 approached the upper bound of permissible drift, underscoring the need for careful placement of irregularities and appropriate factor selection. Through this approach, optimal structural resilience in buildings with plan irregularities has effectively identified