: Vertical members that carry axial loads. These must be designed for both compression and potential moments from lateral forces. Diaphragms
| Mistake | Consequence | PDF Solution | | :--- | :--- | :--- | | Missing shear reinforcement in beam-column joints | Brittle joint shear failure during earthquake | Provide joint tie table for different column sizes | | Straight 90° hooks on stirrups (instead of 135°) | Bars straighten out under tension, splitting cover | Mandate 135° seismic hooks in all ties | | Lapping all column bars at same location | Bar buckling and loss of axial capacity | Stagger lap splices by 1.3 x lap length | | Insufficient development length for slab bars into beams | Slab separates from beam support | Use straight or hooked standard hooks with L_d table | | No corner reinforcement in masonry infill walls cracking | Stucco/plaster cracking, water ingress | Include corner mesh and tie bar details | : Vertical members that carry axial loads