1. 06-87-400
2016 Capstone Project
Project Title: PCI Big Beam Competition
By:
Landmark Consultants
Alaeldeen Abdelmoneim
Omar Albarazi
Majed Elkhereiji
Junaid Khan
Sofia Tahat
Faculty Supervisors: Dr. Amr El Ragaby & Dr Shaohong Cheng
April 1st, 2016
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2. Project’s Outline
 Introduction
 PCI Big Beam competition rules and criteria
 Pre-stressed concrete
 Preliminary design
 Timeline and work plan
 Reflections
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3. Introduction
 Competition background
 PSI: Pre-stressed Inc.
 Capstone component
 International and North
American Teams
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4. Rules & Criteria
 Design accuracy
 Material cost and weight
 Max deflection at maximum specified load
 Accurate predictions
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5. Project Methodology
 The study of pre-stress concrete concept
 Design concrete mixes for the pre-casted beams
 Different mixes for capstone purpose
 Design of one concrete beam for the PCI competition
 Design of two concrete beams for the capstone
 Experimental testing and comparisons
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6. What is Pre-Stress Concrete?
 Applying a compression force/stress before
subjecting it to the actual loading
 Major concept is the tendon stressing
 Pre-tensioning
 Post-tensioning
 Loads vary with time
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7. Losses
 Immediate and time dependent
 Two method used
 Simplified
 Detailed
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8. Service Performance
 Stresses at transfer  Stresses at service
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9. Ultimate Strength
 Approximate Method
 Strain Compatibility Method
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10. Minimum Beam Section
 First trial
 Minimum requirements
CSA-A23.3-04
ACI Concrete 318-11 Code
CPCI Manual Design (4th ed.)
 Shear Design
 10M stirrups
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11. 11Possible other Section Design

12. Programmable Design Spreadsheet 12

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16. Design Parameters for Concrete Mix
 Type of cement (type III)
 Slump factor (50- 75 mm)
 Design compressive strength (50 MPa)
 Nominal Aggregate size (10 mm)
 W/C Ratio
 Additives
 Air Entrainment
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17. Timeline & Work Plan 17

18. Reflections
 Interest in subject
 Expose experience with company
 Learn about precast industry
 Contribution and cooperation of our team members
 Good use of different software
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19. Thank you
Questions?
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