Effective Span of the Staircase | IS-456-2000 | Stair slab spanning Longitudinally & Transversely

[@civil_boy_-ym1wz]

Thank you very much mam

[@MehebubIslam-k1s]

Thank you mam

[@cquinstonaddo]

so what do you do if the supports are at A,B and D like you showed in the longitudinal design...for the effective span do you use centre of support B and neglect support A?