Code
Building Code Requirements for Structural Concrete (ACI 318-19) and Commentary (ACI 318R-19)
References
• Design Guide on the ACI 318 Building Code Requirements for Structural Concrete, First Edition, 2020 Concrete Reinforcing Steel Institute (CRSI), Example 14.11
• spColumn Engineering Software Program Manual v10.10, STRUCTUREPOINT, 2023
• “Interaction Diagram - Barbell Concrete Shear Wall Unsymmetrical Boundary Elements (ACI 318-19)” Design Example, STRUCTUREPOINT, 2022
• “Interaction Diagram - Building Elevator Reinforced Concrete Core Wall Design Strength (ACI 318-19)” Design Example, STRUCTUREPOINT, 2022
• “Biaxial Bending Interaction Diagrams for C-Shaped Concrete Core Wall Design (ACI 318-19)” Design Example, STRUCTUREPOINT, 2022
• “Interaction Diagram - Tied Reinforced Concrete Column with High-Strength Reinforcing Bars (ACI 318-19)” Design Example, STRUCTUREPOINT, 2022
• Contact support@StructurePoint.org to obtain supplementary materials (spColumn models: CRSI-Ex-14-11.colx and CRSI-Ex-14-11-Mpr.colx)
fy = 80,000 psi
Clear cover = 0.75 in.
Story heights = 11 ft
Number of stories = 30
lw = 32.0 ft (Required extent of special boundary elements)
Table 1 - Wall Loads | |||
Load Case | Axial Load, kip | Bending Moment, ft-kip | Shear Force, kip |
Dead, D | 15,766.1 | 0 | 0 |
Live, L | 4,594.4 | 0 | 0 |
Roof Live, Lr | 47.1 | --- | --- |
Seismic, Qe | 0 | ±163,801 | ±901.3 |
Reference | No. | Load Combination | Axial Load, kip | Bending Moment, ft-kip | Shear Force, kip | |
5.3.1a | 1 | 1.4D | 22,072.5 | 0 | 0 | |
5.3.1b | 2 | 1.2D + 1.6L + 0.5Lr | 26,293.9 | 0 | 0 | |
5.3.1c | 3 | 1.2D + 0.5L + 1.6Lr | 21,291.9 | 0 | 0 | |
5.3.1e | 4 | 1.3D + 0.5L + 1.3Qe | SSR | 22,793.1 | -212,941.3 | -1,171.7 |
5 | SSL | 22,793.1 | -212,941.3 | -1,171.7 | ||
5.3.1g | 6 | 0.8D + 1.3Qe | SSR | 12,612.9 | -212,941.3 | -1,171.7 |
7 | SSL | 12,612.9 | -212,941.3 | -1,171.7 | ||