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<br /> <br /> <br /> <br /> <br /> <br />3rd & Broadway, Santa Ana, CA <br />Volume 2 - Structural Calculations June 17, 2024 | Project # S21043.00 <br /> pg. 78 <br />4.8.2 COUPLING BEAM DESIGN – RESIDENTIAL BUILDING <br />The following table shows the design parameters for each link beam as well as the ACI requirements <br />verification and the Demand Capacity Ratios (DCR) for shear and moment. For the current design <br />approach, all beams are designed as diagonally reinforced coupling beams. The beams as shown in the <br />following table are found to have adequate capacity for shear as well as moment. <br />Link beam labels for core walls are shown as below: <br /> <br /> <br /> <br />a) Level 1 b) Level 4 to Roof <br /> <br />Figure 4.8-1: West Core Wall Plan for Residential building Coupling Beam Labels <br /> <br /> <br />a) Level 03 to Level 07 b) Level 08 to Roof <br /> <br />Figure 4.8-2: East Core Wall Plan for Residential building Coupling Beam Labels <br /> <br />