1 Presentation Outline Introduction Existing Structure - PDF document

Farquhar Park Aquatic Center York, PA Jason Kukorlo Structural Option Faculty Consultant: Dr. Linda Hanagan AE Senior Thesis Spring 2010 Presentation Outline • Introduction • Existing Structure OUTLINE • Project Goals • Structural Depth Study – Gravity System – Lateral System • Architectural Breadth Study • Building Enclosure Study • Conclusions • Questions 1

Presentation Outline • Introduction • Existing Structure INTRODUCTION • Project Goals • Structural Depth Study – Gravity System – Lateral System • Architectural Breadth Study • Building Enclosure Study • Conclusions • Questions Presentation Outline Building Statistics • Introduction • Natatorium Complex • Existing Structure • Location: York, PA • Project Goals • Occupant: YMCA of York and York County • Structural Depth Study • Occupancy Type: Assembly • Occupancy Type: Assembly – Gravity System • Size: 37,000 SF – Lateral System • Height: 53’ ‐ 0” • Architectural Breadth Study • Not Constructed • Building Enclosure Study • Cost: $13 Million (Estimate) • Conclusions • Structural Engineer: Nutec Design Associates, Inc. • Questions 2

Presentation Outline Architecture • Introduction • Curved Roof • Existing Structure • Large Glazed Curtain Walls • Project Goals • Precast Concrete Panels • Structural Depth Study • Metal Wall Panels • Metal Wall Panels – Gravity System • Standing Seam Metal Roof – Lateral System • Façade Plant Climbing System • Architectural Breadth Study • Building Enclosure Study • Conclusions • Questions Presentation Outline • Introduction • Existing Structure EXISTING STRUCTURE • Project Goals • Structural Depth Study – Gravity System – Lateral System • Architectural Breadth Study • Building Enclosure Study • Conclusions • Questions 3

Presentation Outline Gravity System • Introduction • Triangular Curved Steel HSS Trusses • Existing Structure – Span 130’ ‐ 0” • Project Goals – Spaced 30’ ‐ 0” o.c. • Structural Depth Study – Tapered Columns – Gravity System • Steel HSS Columns – Lateral System • Steel HSS Lobby Roof Trusses • Architectural Breadth Study – Span 41’ ‐ 0” • Building Enclosure Study – Spaced 15’ ‐ 0” o.c. • Conclusions • 12” Precast Concrete Hollow Core Planks • Questions • 12” CMU Interior Walls Presentation Outline Lateral System • Introduction • North/South Direction: • Existing Structure – Steel Braced Frames • Project Goals – Steel Moment Frames • Structural Depth Study – Gravity System • East/West Direction: – Lateral System – Steel Moment Frames • Architectural Breadth Study • Building Enclosure Study • Conclusions • Questions 4

Presentation Outline Lateral System • Introduction Column Line 1 • Existing Structure • Project Goals • Structural Depth Study Column Line 1.8 – Gravity System – Lateral System Column Line 2 • Architectural Breadth Study • Building Enclosure Study • Conclusions Column Line 4 • Questions Presentation Outline • Introduction • Existing Structure PROJECT GOALS • Project Goals • Structural Depth Study – Gravity System – Lateral System • Architectural Breadth Study • Building Enclosure Study • Conclusions • Questions 5

Presentation Outline Problem • Original project over budget • Introduction • Existing Structure • Project Goals • Structural Depth Study Goals – Gravity System • Create alternate design to better meet financial needs of – Lateral System owner (YMCA) • Architectural Breadth Study • Building Enclosure Study • Maintain architectural integrity of original design • Conclusions • Questions Presentation Outline Solution • Introduction • Gravity System Design • Existing Structure – King Post Truss System • Project Goals – Space Frame • Structural Depth Study – Wood Truss System – Gravity System – Lateral System • Lateral System Design • Architectural Breadth Study – Concrete Moment Frames – Additional Perimeter Braced Frames • Building Enclosure Study • Conclusions • Questions 6

Presentation Outline • Introduction • Existing Structure STRUCTURAL DEPTH • Project Goals • Structural Depth Study – Gravity System – Lateral System • Architectural Breadth Study • Building Enclosure Study • Conclusions • Questions Presentation Outline Steel King Post Truss System • Introduction • Final Design: • Existing Structure – 20’ ‐ 0” Depth • Project Goals – 30’ ‐ 0” Spacing to Match Existing – 130’ ‐ 0” Span • Structural Depth Study • More Cost Effective M C t Eff ti – Gravity System • Too Simple – Lateral System • Lacked Architectural Freedom • Architectural Breadth Study • Building Enclosure Study • Conclusions • Questions 7

Presentation Outline Steel Space Frame • Introduction • Investigated 4’, 8’, and 12’ Modules • Existing Structure • Various Depths • Project Goals • Final Design: 8’ ‐ 0” Modules with 8’ ‐ 0” Depth • Structural Depth Study • Too Costly due to Number of Joints – Gravity System – Lateral System • Architectural Breadth Study • Building Enclosure Study • Conclusions • Questions Presentation Outline Loads Applied to Top Chord of Glulam Trusses Wood Truss System DEAD PSF Zinc Standing Seam Metal Roof Panels 1.5 1/2" Moisture Resistant Gypsum Board 2.5 • Introduction • Glulam most appropriate for 130’ ‐ 0” span 4 1/2" Rigid Insulation 6.75 3" Decking 7.6 • Existing Structure – Southern Pine Glulam I.D. #50 Superimposed 5 Assumed Self Weight 5 • Project Goals – Pressure treatment Total 28.35 Use 30 • 10 PSF applied to bottom chord for speakers • Structural Depth Study LIVE L r L r 20 20 – Gravity System • Decreased spacing required SNOW 23.1 S – 15’ ‐ 0”, 10’ ‐ 0”, 8’ ‐ 0” – Lateral System • Column relocations • 2005 National Design Specification for Wood Construction • Architectural Breadth Study • SAP2000 • Controlling Load Combination: D + L r • Building Enclosure Study – Live: C D = 1.0 – Distributed loads applied to top and bottom chord • Conclusions – Snow: C D = 1.15 • Questions • Wet Service Factor 8

Presentation Outline Loads Applied to Top Chord of Glulam Trusses Wood Truss System DEAD PSF Zinc Standing Seam Metal Roof Panels 1.5 1/2" Moisture Resistant Gypsum Board 2.5 • Introduction 4 1/2" Rigid Insulation 6.75 3" Decking 7.6 • Existing Structure Superimposed 5 Assumed Self Weight 5 • Project Goals Total 28.35 30 Use • Structural Depth Study LIVE L r L r 20 20 – Gravity System SNOW S 23.1 – Lateral System • Architectural Breadth Study • 2005 National Design Specification for Wood Construction • Controlling Load Combination: D + L r • Building Enclosure Study – Live: C D = 1.0 • Conclusions – Snow: C D = 1.15 • Questions • Wet Service Factor Presentation Outline Loads Applied to Top Chord of Glulam Trusses Wood Truss System DEAD PSF Zinc Standing Seam Metal Roof Panels 1.5 1/2" Moisture Resistant Gypsum Board 2.5 • Introduction • Final Design: 4 1/2" Rigid Insulation 6.75 SUMMARY 3" Decking 7.6 Top Chord 6 3/4" x 12 3/8" • Existing Structure – 20’ ‐ 0” Depth Superimposed 5 Bottom Chord 6 3/4" x 8 1/4" Assumed Self Weight 5 Web Members 6 3/4" x 6 7/8" • Project Goals – 130’ ‐ 0” Span Total 28.35 West Column 6 3/4" x 15 1/8" Use 30 – 8’ ‐ 0” Spacing All members are Southern Pine, • Structural Depth Study LIVE Glulam I.D. #50 L r L r 20 20 – Gravity System SNOW 23.1 S – Lateral System • 2005 National Design Specification for Wood Construction • Architectural Breadth Study • Controlling Load Combination: D + L r • Building Enclosure Study – Live: C D = 1.0 • Conclusions – Snow: C D = 1.15 • Questions • Wet Service Factor 9

Presentation Outline Comparison King Post Truss System • Introduction • Existing Structure • Project Goals Comparison of Three Alternate Roof Systems Cost Feasibility Architectural Impact • Structural Depth Study Steel King Post Trusses Competitive High Poor Steel Space Frame High Poor/Moderate Poor/Moderate Space Frame S F – Gravity System Glulam Trusses Competitive High High – Lateral System • Architectural Breadth Study • Building Enclosure Study • Conclusions • Questions Glulam Truss System Presentation Outline Comparison King Post Truss System • Introduction • Existing Structure Comparison of Three Alternate Roof Systems • Project Goals Cost Feasibility Architectural Impact Steel King Post Trusses Competitive High Poor • Structural Depth Study Steel Space Frame High Poor/Moderate Poor/Moderate Space Frame S F – Gravity System Glulam Trusses Competitive High High – Lateral System • Architectural Breadth Study Final Selection: GLULAM TRUSS SYSTEM • Building Enclosure Study • Conclusions • Questions Glulam Truss System 10