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North Shore at Canton

North Shore at Canton. Beau Menard Structural Option Advisor: Professor Parfitt. The Pennsylvania State University Architectural Engineering Senior Thesis. North Shore at Canton. Beau Menard Structural Option. Table of Contents: Building Overview Problem Statement Solution Overview

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North Shore at Canton

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  1. North Shore at Canton Beau Menard Structural Option Advisor: Professor Parfitt The Pennsylvania State University Architectural Engineering Senior Thesis

  2. North Shore at Canton Beau Menard Structural Option Table of Contents: • Building Overview • Problem Statement • Solution Overview • Structural Redesign • Steel Solution • Pre-cast solution • Construction Management Issues • Material Costs • Construction Durations • Conclusion • Acknowledgements • Questions

  3. BuildingOverview North Shore at Canton Beau Menard Structural Option • Location • Baltimore, MD • 2300 block of Boston Street • Residential Structure • 1 level covered parking • 3 levels of living units • 60,000 sq ft

  4. BuildingOverview North Shore at Canton Beau Menard Structural Option • Structural System • Foundation • Pre-cast concrete piles • Concrete strength, f’c = 7000 psi • Grade 60 reinforcing steel • Parking level • Floor system- 12” pre-cast planks w/ 4-1/2” topping • Steel Columns and Girders • 8” pre-cast planks w/ 2-1/2” topping

  5. BuildingOverview North Shore at Canton Beau Menard Structural Option • Structural Systems • Living Units • Bearing/Shear wall system • Steel Studs • ½” Gypsum Sheathing • Floor system • 16” deep pre-engineered wood floor trusses, spaced 16” o.c. • ¾” OSB topping • Roof system • Pre-engineered roof trusses, spaced 24” o.c.

  6. ProblemStatement North Shore at Canton Beau Menard Structural Option • Inherent Moisture Problem • Structural Integrity

  7. North Shore at Canton Beau Menard Structural Option SolutionOverview • Structural Solution • Steel Redesign • Combination Moment and Braced Frame • Open web steel joists • Pre-cast Concrete Redesign • Shear-wall lateral system • Pre-cast columns and girders • Pre-cast planks

  8. North Shore at Canton Beau Menard Structural Option StructuralRedesign • Design Loads (IBC 2003 & ASCE 7-02) • Live Load • 40 psf • Roof Live Load ~ 20 psf • Snow Load • 20 psf • Lateral Loads • Wind Load ~ 20 psf (steel structure) • Seismic Loads as noted (concrete structure) • Dead Loads • Structure Weight ~ varies • Roof Dead Load ~ 20 psf • MEP and Ceiling ~ 20 psf

  9. North Shore at Canton Beau Menard Structural Option StructuralRedesign • Steel Design • Floor System • Open Web Steel Joists • 16k4 (25’ max span, 3’ spacing) • Allowable Load ~ 313 plf • Total Load ~ 270 plf • Metal Decking • 19 gauge (3 span) • 1-1/2” x 6” • Light weight Concrete topping • 2-1/2” topping w/ gypsum ceiling

  10. North Shore at Canton Beau Menard Structural Option StructuralRedesign • Steel Design • Initial frame systems • Moment frame vs. Braced frame • Combination Frame • Moment and Braced Connections

  11. North Shore at Canton Beau Menard Structural Option StructuralRedesign - Steel • Main Lateral Force Resisting System • 5 Combination Frames • Columns • w 10x49 (typ) • Girders • w 21x50 (int) • w 18x35 (ext) • Bracing elements • w 8x24 (typ) • Moment Frame • Columns • w 10x49 • Girders • w 18x40 1st Floor

  12. North Shore at Canton Beau Menard Structural Option StructuralRedesign - Steel 2nd Floor • Main Lateral Force Resisting System • 5 Combination Frames • Columns • w 10x49 (typ) • Girders • w 18x35 (int) • w 16x26 (ext) • Bracing elements • w 8x24 (typ) • Moment Frame • Columns • w 10x49 • Girders • w 18x40

  13. North Shore at Canton Beau Menard Structural Option StructuralRedesign - Steel 3rd Floor • Main Lateral Force Resisting System • 5 Combination Frames • Columns • w 10x49 (typ) • Girders • w 16x26 (int) • w 16x26 (ext) • Bracing elements • w 8x24 (typ) • Moment Frame • Columns • w 10x49 • Girders • w 18x40

  14. North Shore at Canton Beau Menard Structural Option StructuralRedesign - Steel 4th Floor • Main Lateral Force Resisting System • 5 Combination Frames • Columns • w 10x49 (typ) • Girders • w 22x55 (typ) • Moment Frame • Columns • w 10x49 • Girders • w 18x40

  15. North Shore at Canton Beau Menard Structural Option StructuralRedesign - Steel • Lateral Deflection

  16. North Shore at Canton Beau Menard Structural Option StructuralRedesign - Steel • Gravity Frame • Columns • w 10x49 (typ) • Girders • w 16x26 • w 18x40 • w 21x44 • w 24x55 • Bracing elements • w 8x24 (typ)

  17. North Shore at Canton Beau Menard Structural Option StructuralRedesign - Steel • Foundation Impact • Slight Increase in axial loads • Lateral Load transfer • Pile Capacity • 130 tons Compression • 30 tons tension

  18. North Shore at Canton Beau Menard Structural Option StructuralRedesign – Pre-cast • Typical Frame Layout • Foundation Impact • Shear walls • Columns • Girders

  19. North Shore at Canton Beau Menard Structural Option StructuralRedesign – Pre-cast • Shear Walls • Location • Long walls • Short walls • Loads Applied • Seismic Controls • Reinforcement • Spacing ~ 18” • ρ = 0.0025 • # 6 bar

  20. North Shore at Canton Beau Menard Structural Option StructuralRedesign – Pre-cast • Columns • Level • 3-12”x12” • 2-12”x12” • 1-14”x14” • Reinforcement • γ = 0.6 (conservatively) • ρ = 0.03 • 3 -# 7 bars / face

  21. North Shore at Canton Beau Menard Structural Option StructuralRedesign – Pre-cast • Girders • Interior • 12”x14” • Moment Reinforcement • 3-#9 (bot) • 4-#9 (top) • Shear/torsion Reinforcement • #3 bars @ s = 7” • Perimeter • 10”x12” • Moment Reinforcement • 2-#5 (bot) • 2-#5 (top) • Shear/torsion Reinforcement • #3 bars @ s = 6”

  22. North Shore at Canton Beau Menard Structural Option StructuralRedesign – Pre-cast • Floor System • Pre-cast Planks • Span ~ 25’ • 8”x4’ SpanDeck –U.L.-J917 • Flexure 4 - 1/2" Φ allowable load = 110 psf total load = 90 psf • 2” concrete topping

  23. North Shore at Canton Beau Menard Structural Option StructuralRedesign – Pre-cast • Foundation Impact • Greatly Increase in axial loads • Lateral Load transfer • Shear wall connections

  24. North Shore at Canton Beau Menard Structural Option • Current system • Pier cost ~ $ 1,000,000 • Town home cost ~ $448,600 • Includes structure and facade • Steel System • Frame Cost ~ $650,000 • Includes framing and floor system • No additional pier cost • Pre-cast System • Frame cost ~ $750,000 • Includes framing and floor system • Pier cost increased ConstructionManagement – Cost

  25. North Shore at Canton Beau Menard Structural Option ConstructionManagement – Durations • Current system • Pier construction ~ 5 months • Town home construction ~ 5 months • Includes structure and facade • Steel System • Frame construction ~ 4 months • Includes framing and floor system • No additional pier construction • Pre-cast System • Frame construction ~ 6 months • Includes framing and floor system • Additional pier construction required

  26. North Shore at Canton Beau Menard Structural Option Conclusions / Recommendations • Steel Redesign • Advantages • Light Weight • Less impact on foundation • Cost effective • Shorter construction durations • Disadvantages • Complex connections • Additional moisture protection • Additional fire proofing • Pre-cast Redesign • Advantages • Moisture resistant • Fire resistant • Reduce lateral members • Disadvantages • Increased structure weight • Complex connections • Greatly impacts foundation • Increased cost • Slightly increased construction durations

  27. North Shore at Canton Beau Menard Structural Option Acknowledgements Don Taylor ~ DW Taylor Architects and Associates Jim Diepold ~ Whitney, Bailey, Cox, Magnani Friends and Family AE Faculty

  28. North Shore at Canton Beau Menard Structural Option Questions The All Knowing Man of Steel Man of Steel

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