PCI 6th Edition

1. PCI 6th Edition Preliminary Component Selection

2. Presentation Outline Building optimization Preliminary sizing Load tables Additional gravity loading considerations Fire Resistance considerations Vibration considerations Thermal considerations

3. Building Optimization Maximize repetitive and modular dimensions Use simple spans Standardize openings Use local component sizes Minimize component types and sizes Maximize repetitive and modular dimensions for plan layout and member dimensions. Use simple spans whenever possible. Standardize the size and locations of openings in products. Use standard, locally available member sizes. Consult your local PCI chapter or producer for information. Minimize the number of different member types and sizes and their reinforcement patterns if you are providing or specifying that level of information. Maximize repetitive and modular dimensions for plan layout and member dimensions. Use simple spans whenever possible. Standardize the size and locations of openings in products. Use standard, locally available member sizes. Consult your local PCI chapter or producer for information. Minimize the number of different member types and sizes and their reinforcement patterns if you are providing or specifying that level of information.

4. Building Optimization Consider tolerances in connection design Avoid over specifying design requirements Allowable stresses Allowable cambers Allowable Deflections Coatings on reinforcing steel Embedded hardware Loose Connection hardware Avoid member designs and connection designs that require skill levels of workmanship and close tolerances that are not attainable in normal operation. Avoid specifying requirements in excess of what is needed for designs so detrimental results can be avoided. For example over stating the live load increase the prestress requirements which in turn produces additional camber that may cause hand rail or drainage conflicts. Avoid member designs and connection designs that require skill levels of workmanship and close tolerances that are not attainable in normal operation. Avoid specifying requirements in excess of what is needed for designs so detrimental results can be avoided. For example over stating the live load increase the prestress requirements which in turn produces additional camber that may cause hand rail or drainage conflicts.

5. Building Optimization Use of exterior wall panels as load bearing components and structural walls Maximize form use and minimize form differences / variation Contact a local producer as early as possible during the design development stages of a project for assistance and answering questions Most important – consult the producer and material supplied early in the process to understand preference and material availability and guidance throughout the planning and design process. Most important – consult the producer and material supplied early in the process to understand preference and material availability and guidance throughout the planning and design process.

6. Why estimate component size? To verify the product fits the application Establish floor to floor height Establish floor area To estimate project cost

7. Preliminary Analysis Should Include: Framing dimensions Span-to-depth ratios Connection concepts Gravity and lateral load resisting system Mechanisms for the control of volume changes

8. Preliminary Span to Depth Ratios Hollow-core Floor slabs 30 to 40 Roof slabs 40 to 50 Stemmed Components and Solid Slabs Floor 25 to 35 Roof 35 to 40 Beams 10 to 20