Coupling Beam Modeling Criteria (4.5.4.7) Effective cross-section stiffness is automatically applied in accordance with 4.8.5. Next Topic Basement Wall Modeling Related Topics Definition of Walls with Coupling Beam (4.5.4.1) Overturning Moment of Walls with Coupling Beam (with Space) (4.5.4.3) Coupling Ratio of Coupled Walls (4.5.4.4) Coupled Wall Criteria (4.5.4.5) Coupled Walls Modeling Criteria (4.5.4.6)