COMPLETE ETABS TUTORIALS: https://www.youtube.com/watch?v=zq0YbxzFN_I&list=PLDyhMW3kzPDAOR0UYuJaFNxv0e3cPlcUH SAP2000 tutorials : https://www.youtube.com/watch?v=RzVVDp1CKE0&list=PLDyhMW3kzPDCDymHF3dplMvKcLRJYPC5F IMRF Design : https://www.youtube.com/watch?v=8u9qFO5IpmM How to check torsional irregularity in building using etabs Torsional irregularity check in etabs Check for torsion limit in etabs Check for overturning in etabs How to check overturning in etabs Provision shall be made for the increased forces induced on resisting elements of the structural system resulting from torsion due to eccentricity between the center of application of the lateral forces and the center of rigidity of the lateral-force-resisting system. For accidental torsion requirements for seismic design Stability against overturning. Every structure shall be designed to resist the overturning effects caused by the lateral forces . Horizontal Torsional Moments. Provisions shall be made for the increased shears resulting from horizontal torsion where diaphragms are not flexible. The most severe load combination for each element shall be considered for design. The torsional design moment at a given story shall be the moment resulting from eccentricities between applied design lateral forces at levels above that story and the vertical-resisting elements in that story plus an accidental torsion. The accidental torsional moment shall be determined by assuming the mass is displaced . Where torsional irregularity exists, the effects shall be accounted for by increasing the accidental torsion at each level by an amplification factor Torsional irregularity to be considered when diaphragms are not flexible Torsional irregularity shall be considered to exist when the maximum story drift, computed including accidental torsion, at one end of the structure transverse to an axis is more than 1.2 times the average of the story drifts of the two ends of the structure. How to fix overturning in building Fix torsion irregularity How to resolve torsional irregularity in building design #etabs #engineering #design