1. Kenneth G. Langone Athletic and Recreation Center Kyle Oberdorf Structural Option Thesis April 2007

2. Presentation Outline Introduction Introduction Existing Structural System Existing Structural System Problem Statement Problem Statement Problem Solution Problem Solution Depth Study Depth Study –Alternative System Design Breadth Study Breadth Study –LEED Certification –Natatorium Duct Redesign Conclusion Conclusion Acknowledgements Acknowledgements Kyle Oberdorf Kenneth Langone Athletic and Recreation Center

3. Introduction

4. Introduction Project Team: Owner: Bucknell University AE Firm: Ewing Cole Cherry Brott CM: R.S. Mowery and Sons

5. Introduction Location: Lewisburg, Pa Location: Lewisburg, Pa Gymnasium and Natatorium Additions to Existing Facilities Gymnasium and Natatorium Additions to Existing Facilities 102,000+ Sqft 102,000+ Sqft $27 Million $27 Million Construction: May 2001-Early 2003 Construction: May 2001-Early 2003 Design-Bid-Build Design-Bid-Build

6. Existing Structural System

7. Foundation: Continuous and Spread Footings Foundation: Continuous and Spread Footings Gravity Force Resisting System Gravity Force Resisting System –W shaped Columns –Prefabricated Structural Steel Roof Trusses

8. Existing Structural System Floor System Floor System –2” 20 Gauge Composite Steel Decking –4 ½” Normal Weight Concrete –¾” Diameter 5” Long Shear Studs

9. Existing Structural System Lateral Force Resisting System Lateral Force Resisting System –Cross Braced Frames –Extra Strong ASTM 501A Steel Pipe –½” Steel Gusset

10. Problem Statement & Problem Solution

11. Problem Statement Redesign Structural System Using Engineer Wood Products to Better Fit Area’s History and Aesthetics Redesign Structural System Using Engineer Wood Products to Better Fit Area’s History and Aesthetics Compare Cost and Construction Time Compare Cost and Construction Time Kyle Oberdorf Kenneth Langone Athletic and Recreation Center

12. Problem Solution New Structural System New Structural System –Engineered Lumber Arched Roof Beam –Engineered Lumber Columns –Engineered Lumber Floor Girders and Beams –Poured Concrete Floor on Metal Decking Cost Analysis Cost Analysis Construction Time Comparison Construction Time Comparison Kyle Oberdorf Kenneth Langone Athletic and Recreation Center

13. Depth Study: Alternative Structural System Design

14. Arched Roof Beams General Natatorium Natatorium –Span: 123’ 8” Gymnasium Gymnasium –Span: 158’ 10” General Conditions General Conditions –20 gauge Architectural Metal Sheet Roofing over 5” of Rigid Insulation on 18 gauge Steel Decking –Loads (psf) Roofing 13 Roofing 13 Snow 30 Snow 30 Wind 25 Wind 25 Kyle Oberdorf Kenneth Langone Athletic and Recreation Center

15. Arched Roof Beam Natatorium 12” x 54” Southern Pine 30F-E2 12” x 54” Southern Pine 30F-E2 7/8” 6 x 7FC Structural Steel Cable 7/8” 6 x 7FC Structural Steel Cable

16. Arched Roof Beam Gymnasium 12” x 68” Southern Pine 30F-E2 12” x 68” Southern Pine 30F-E2 7/8” 6 x 7FC Structural Steel Cable 7/8” 6 x 7FC Structural Steel Cable

17. Column 12” x 18” Southern Pine Grade N1D14 12” x 18” Southern Pine Grade N1D14 Oversized to meet 2 hour fire rating Oversized to meet 2 hour fire rating

18. Floor System 19” x 29” Southern Pine 30F-E2 Beams 19” x 29” Southern Pine 30F-E2 Beams 18” x 29” Southern Pine 30F-E2 Girders 18” x 29” Southern Pine 30F-E2 Girders Oversized to meet 2 hour fire rating Oversized to meet 2 hour fire rating

19. Lateral Force Resisting System 9 ½” x 12” Southern Pine Grade N1D14 9 ½” x 12” Southern Pine Grade N1D14 Design Controlled by Tension Side of Cross Design Controlled by Tension Side of Cross Oversized to meet 2 hour fire rating Oversized to meet 2 hour fire rating

20. Cost/Construction Time Cost Cost Construction Time Construction Time –Identical Erection Time –Wood has a longer production time SteelWood Beam$14500.00$15900.00 Column$3700.00$2100.00

21. Breadth Study: LEED Certification HVAC Delivery System

22. LEED Certification Sustainable Site Sustainable Site –11 out of 14 Points Earned by Wood System Points Earned by Wood System –4 points from Materials and Resources Section

23. HVAC Delivery System Pool Seating Pool Seating –44” Dia. Supply –2” Dia. Holes North/South Pool North/South Pool –66” Dia. Supply –2” Dia. Holes

24. Conclusion

25. Conclusion New System is a Viable Alternative New System is a Viable Alternative –Limited Price Increase –Approx. Same Construction Time Recommendation Recommendation –Use Wood Columns and Roof Beams when left exposed.

26. Acknowledgements Bucknell Unversity Bucknell Unversity Ewing Cole Cherry Brott Ewing Cole Cherry Brott R.S. Mowery and Sons R.S. Mowery and Sons AE Department AE Department Family Family And the great friends I’ve made along the way And the great friends I’ve made along the way

27. Questions