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Presentation Outline. PCI historyNotable modifications to the 6th EditionGeneral chapter by chapter overview. Formation of PCI. PCI was originated by 6 Florida companiesFounded in 1954Director - Martin P. KornPresident - Douglas ConeInitially consisted of 6 plants and has grown to 278 plants currently .
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1. PCI 6th Edition Handbook History Main seminar theme.Main seminar theme.
2. Presentation Outline PCI history
Notable modifications to the 6th Edition
General chapter by chapter overview
3. Formation of PCI PCI was originated by 6 Florida companies
Founded in 1954
Director - Martin P. Korn
President - Douglas Cone
Initially consisted of 6 plants and has grown to 278 plants currently
Brief introduction of how PCI was formed.
Brief introduction of how PCI was formed.
4. Goal of PCI Develop a standard practice What is the reason of a trade association
The graphic image represents moved from an un-coordinated group to a coordinated more coordinate or standard approach to using a precast solution. With the advent of PCI there became a standard approach to the use of precast prestressed concrete. Although not in the same fashion as the Steel industry the end user could be assured of the design approach, production quality and erection of the structure.
The graphic on the right is a movie that repeats. There is a transition when the space bar is hit.What is the reason of a trade association
The graphic image represents moved from an un-coordinated group to a coordinated more coordinate or standard approach to using a precast solution. With the advent of PCI there became a standard approach to the use of precast prestressed concrete. Although not in the same fashion as the Steel industry the end user could be assured of the design approach, production quality and erection of the structure.
The graphic on the right is a movie that repeats. There is a transition when the space bar is hit.
5. Goal of PCI Develop a standard practice
Benefits of a standard design practice
Shared design research
Increase engineering knowledge
Promote production efficiency
6. Publication Timeline General publication timeline
Overview of major publications or first edition publications
Design Handbook
Quality Control Manuals
Architectural Handbook
Drafting Handbook
Hollow Core Manual
Bridge ManualGeneral publication timeline
Overview of major publications or first edition publications
Design Handbook
Quality Control Manuals
Architectural Handbook
Drafting Handbook
Hollow Core Manual
Bridge Manual
7. PCI Design Handbook – 1st Edition Motivation
Standard approach to design
Illustrate application of product
Assist design practices
Disseminate consistent product specifications Driving factors for the need to create handbook
Main reasons for the industry to create a design handbook
Initiate a Standard Approach to Design
Inform owners, architects, and engineers of the application of precast concrete
Create a design aid to assist engineers with precast concrete design
Create a document for precast concrete specificationsDriving factors for the need to create handbook
Main reasons for the industry to create a design handbook
Initiate a Standard Approach to Design
Inform owners, architects, and engineers of the application of precast concrete
Create a design aid to assist engineers with precast concrete design
Create a document for precast concrete specifications
8. PCI Design Handbook – 1st Edition Similar to AISC
Section properties
Design requirements
Design equations
Standard practice
Design aids ACI design code
Load factors
Code requirements
Accepted by building officials Basis of the 1st edition.
The book was to give designers information regarding a wide range and variety of products. The information would be used to estimate design, and size all the necessary members for a precast / prestressed system.Basis of the 1st edition.
The book was to give designers information regarding a wide range and variety of products. The information would be used to estimate design, and size all the necessary members for a precast / prestressed system.
9. 1st Edition Content 377 Pages
Product applications and materials
Preliminary design
Building analysis and design
Components design
Product handling and bracing Connection design
Architectural topics
Tolerances
Other considerations
Specifications and standard practice
General design information
General Bullet points about the 1st Edition.General Bullet points about the 1st Edition.
10. PCI Design Handbook – 6th Edition Motivation
ACI 318-02
IBC 2003
ASCE 7 - 2002
Reflect the most recent research
736 pages, 111 more than the 5th Reasons for creating a 6th Edition
As the concrete design code and building codes are update so is the PCI design handbook. The ACI design code is on a 6 year cycle, IBC is on a 6 year cycle and the ASCE7 is on a 4 year cycle. In addition to design codes being update research in the field’s of seismic, flexure, torsion and other important topics prompt revisions. These revisions create additional ductility, increase capacity or long span of the building systems and its components.Reasons for creating a 6th Edition
As the concrete design code and building codes are update so is the PCI design handbook. The ACI design code is on a 6 year cycle, IBC is on a 6 year cycle and the ASCE7 is on a 4 year cycle. In addition to design codes being update research in the field’s of seismic, flexure, torsion and other important topics prompt revisions. These revisions create additional ductility, increase capacity or long span of the building systems and its components.
11. Review Process Handbook Committee
Industry Producer Engineers, Industry Engineering Consultants, and Academia
Technical Activities Committee (TAC)
Industry Producer Engineers, Industry Engineering Consultants, and Academia
Blue Ribbon Review Committee
Industry Producer Engineers, Industry Engineering Consultants, and Academia How the handbook committee operates and review process
The Handbook Committee is made of producers, academics and industry consultants. These individuals design or teach the design of precast prestressed concrete on a daily basis. The book is broken into chapter sub-committees and assigned a chapter chairperson. The global changes of the book are well established – design code, format etc and then the each sub-committee applies the changes to the examples, theory and references. The book is approved through a Ballot process where the entire committee reviews every chapter and votes. Finally an independent group, Blue Ribbon Review Committee” is established to give the entire book a review. The BRC is made of producers, academics and industry consultantsHow the handbook committee operates and review process
The Handbook Committee is made of producers, academics and industry consultants. These individuals design or teach the design of precast prestressed concrete on a daily basis. The book is broken into chapter sub-committees and assigned a chapter chairperson. The global changes of the book are well established – design code, format etc and then the each sub-committee applies the changes to the examples, theory and references. The book is approved through a Ballot process where the entire committee reviews every chapter and votes. Finally an independent group, Blue Ribbon Review Committee” is established to give the entire book a review. The BRC is made of producers, academics and industry consultants
12. Notable Modifications Ch. 2, Preliminary Design
Upgraded to reflect ACI 318-02 load factors
Ch. 3, Analysis and Design
Complete revision due to the introduction of IBC and modification to ASCE codes
Examples revised to match code
Modifications
The design tables are updated for revised load and resistance factors. 15ft wide double tee was added. Chapter 3 was completely re-written to reflect the latest research and adoption of IBC 2003. This chapter is a brief introduction to Seismic Design and the details of Seismic Design can be found in the Seismic Design Manual.Modifications
The design tables are updated for revised load and resistance factors. 15ft wide double tee was added. Chapter 3 was completely re-written to reflect the latest research and adoption of IBC 2003. This chapter is a brief introduction to Seismic Design and the details of Seismic Design can be found in the Seismic Design Manual.
13. Notable Modifications Ch. 4, Component Design
Flexure and shear upgraded to reflect ACI 318-02
Torsion returns to 4th edition methods
Changes regarding stress limits Modifications
The torsion section from the 4th edition was re introduced in the 6th Edition and has been adopted by ACI.
The original reference document is
10. Zia, Paul and McGee, W. D., “Torsion Design of Prestressed Concrete,” PCI JOURNAL, V. 19, No. 2, March-April 1974.
The revised Reference Document is
11. Zia, Paul and Hsu, T.C., “Design for Torsion and Shear in Prestressed Concrete,” Preprint 3424, American Society of Civil Engineers, October, 1978. Reprinted in revised form in PCI JOURNAL, V. 49, No. 3, May-June 2004.
Modifications
The torsion section from the 4th edition was re introduced in the 6th Edition and has been adopted by ACI.
The original reference document is
10. Zia, Paul and McGee, W. D., “Torsion Design of Prestressed Concrete,” PCI JOURNAL, V. 19, No. 2, March-April 1974.
The revised Reference Document is
11. Zia, Paul and Hsu, T.C., “Design for Torsion and Shear in Prestressed Concrete,” Preprint 3424, American Society of Civil Engineers, October, 1978. Reprinted in revised form in PCI JOURNAL, V. 49, No. 3, May-June 2004.
14. Notable Modifications Ch. 6, Connection Design
New method to design headed studs
Updated connection design
Limit State Weld Procedure Presented
15. Notable Modifications Ch. 9, Thermal, Acoustical, fire and other considerations
Sandwich panel research added
Fire resistance added to reflect current code
Vibration has been rewriting
Cracking repair and maintenance has been rewritten Modifications
The vibration section was completely re-written to reflect the industry standard practice. And example a survey was done for the bleacher section to determine acceptable design frequencies and design spans for square and tapered bays. Sandwich wall panel section update on recent research at Lehigh University.Modifications
The vibration section was completely re-written to reflect the industry standard practice. And example a survey was done for the bleacher section to determine acceptable design frequencies and design spans for square and tapered bays. Sandwich wall panel section update on recent research at Lehigh University.
16. Notable Modifications Ch. 10, Specifications and Standard Practices
Created a computerized specification.
Created a Standard of Practice
Modifications
Removed guide specifications since most design offices have computerized specification. The standard of practice demonstrates where PCI deviates from ACI. It has been republished as a self contained document and can be ordered from PCI. The standard practice and specification are on the CD enclosed on the back cover of the handbook.
Show the CD on the back cover
Modifications
Removed guide specifications since most design offices have computerized specification. The standard of practice demonstrates where PCI deviates from ACI. It has been republished as a self contained document and can be ordered from PCI. The standard practice and specification are on the CD enclosed on the back cover of the handbook.
Show the CD on the back cover
17. Chapter 1 – Applications and Materials Overview of precast concrete Describe the various shapes and section geometry but note that any section can be made.Describe the various shapes and section geometry but note that any section can be made.
18. Applications and Materials Overview of precast concrete
Applications
Shows many uses of precast concrete
Various applications
Building Structures
Residential Buildings
Office Buildings
Warehouses and Industrial Buildings
Other Building Structures
Parking Structures
Justice Facilities
Precast Concrete Cladding
Stadiums/Arenas
BridgesVarious applications
Building Structures
Residential Buildings
Office Buildings
Warehouses and Industrial Buildings
Other Building Structures
Parking Structures
Justice Facilities
Precast Concrete Cladding
Stadiums/Arenas
Bridges
19. Applications and Materials Overview of precast concrete
Applications
Shows many uses of precast concrete
Material Discussion
20. Applications and Materials
21. Chapter 2 – Preliminary Design Preliminary analysis
Deck members
Beams
Compression members
Piles
Design tables for Deck members – Stemmed and Flat panels. Beams Rectangular, L- Beam and inverted Tee beams. Compression members for columns and load bearing walls in addition to piles.
Design tables for Deck members – Stemmed and Flat panels. Beams Rectangular, L- Beam and inverted Tee beams. Compression members for columns and load bearing walls in addition to piles.
22. Chapter 3 – Analysis and Design Lateral analysis
Total building analysis
Structural loads
Structural integrity
Volume changes
Shear wall systems
Moment resisting frames
Diaphragm design
Used as a design tool for lateral analysis and total building analysis. Newly revised section for seismic design and diaphragms.
Code requirements for structural loads and Structural integrity.
Used as a design tool for lateral analysis and total building analysis. Newly revised section for seismic design and diaphragms.
Code requirements for structural loads and Structural integrity.
23. Chapter 4 – Design of Precast Components Flexure
Shear
Torsion
Beams with ledges
Bearing
Prestress loss
Camber and deflection
Compression members
Special considerations
Used as a design tool for individual components and their respective details, pockets and daps.
Used as a design tool for individual components and their respective details, pockets and daps.
24. Chapter 5 – Product Handling and Bracing Stripping and Handling Forces and Stresses
Yarding and storage
Transportation
Erection
Erection bracing
Outline product handling yarding / storage, transportation and erection of products and buildings.
Outline product handling yarding / storage, transportation and erection of products and buildings.
25. Chapter 6 – Design of Connections Loads and load factors
Connection design criteria
Connection hardware and load transfer devices
Headed concrete anchor design
Structural steel design
Welding Concrete brackets or corbels
Structural steel corbels
Hanger connections
Bearing pads
Column bases
Moment connections
Typical connections for lateral load resisting system
Connection Design – desing of load transfer devices i.e. rebar and studs. Welds and complete connections
Connection Design – desing of load transfer devices i.e. rebar and studs. Welds and complete connections
26. Chapter 7 – Architectural Precast Concrete Types and functions of architectural concrete panels
Structural Design considerations
Veneered Panels
Types and functions of architectural concrete panels can be Non-load bearing and Load bearing. Structural Design considerations for architectural precast. Discussion of Veneered Panels with Clay products or Natural stone.
Types and functions of architectural concrete panels can be Non-load bearing and Load bearing. Structural Design considerations for architectural precast. Discussion of Veneered Panels with Clay products or Natural stone.
27. Chapter 8 – Tolerances for Precast concrete Product tolerances
Erection tolerances
Clearances Interfacing tolerances
Volume changes
Discussion of tolerances for manufacture and erection.
Discussion of tolerances for manufacture and erection.
28. Chapter 9 – Thermal, Acoustical, Fire Thermal properties of precast concrete
Acoustical properties of precast concrete
Fire resistance
Sandwich panels
Quality assurance and control
Concrete coatings and joint sealants
Vibration in concrete structures
Cracking repair and maintenance
Segmental construction
The catch all chapter including new sections on crack repair and maintenance.
The catch all chapter including new sections on crack repair and maintenance.
29. Chapter 10 – Specifications, Standard Practice Guide specification for precast concrete
Guide specifications for structural precast concrete with commercial architectural finish
Guide specifications for architectural precast concrete
Standard practice recommendations
Recommendations on responsibility for design and construction
PCI standard design practice
The PCI standard design practice and specifications section.
The PCI standard design practice and specifications section.
30. Chapter 11 – General Design Information Beam Tables
Beam tables and torque diagramsBeam tables and torque diagrams
31. General Design Information Beam Tables
Material properties Material properties with stress strain curve for standard materials.Material properties with stress strain curve for standard materials.
32. General Design Information Beam Tables
Material properties
Bolts, Nuts, and Washers
Nut, Bolt, and Washer dimension tables.Nut, Bolt, and Washer dimension tables.
33. General Design Information Beam Tables
Material properties
Bolts, Nuts, and Washers
Rebar Detailing
Standard rebar detailing parametersStandard rebar detailing parameters
34. General Design Information Beam Tables
Material properties
Bolts, Nuts, and Washers
Rebar Detailing
Welding Information
Weld data from welding symbols to section properties of standard weld groups.Weld data from welding symbols to section properties of standard weld groups.
35. General Design Information Beam Tables
Material properties
Bolts, Nuts, and Washers
Rebar Detailing
Welding Information
Design information General design information for elastic section and plastic section properties. General design information for elastic section and plastic section properties.
36. Questions?