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

North Shore at Canton Table of Contents: Building Overview 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

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

North Shore at Canton Building Overview Structural System Foundation Beau Menard Structural Option Building Overview 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

North Shore at Canton Building Overview Structural Systems Beau Menard Structural Option Building Overview 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.

North Shore at Canton Problem Statement Inherent Moisture Problem Beau Menard Structural Option Problem Statement Inherent Moisture Problem Structural Integrity

North Shore at Canton Solution Overview Structural Solution Beau Menard Structural Option Solution Overview 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

North Shore at Canton Structural Redesign Beau Menard Structural Option Structural Redesign 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

North Shore at Canton Structural Redesign Steel Design Floor System Beau Menard Structural Option Structural Redesign 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

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

Structural Redesign - Steel North Shore at Canton Beau Menard Structural Option Structural Redesign - Steel 1st Floor 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 w 10x49 w 18x40

Structural Redesign - Steel North Shore at Canton Beau Menard Structural Option Structural Redesign - 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 w 10x49 w 18x40

Structural Redesign - Steel North Shore at Canton Beau Menard Structural Option Structural Redesign - 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 w 10x49 w 18x40

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

Structural Redesign - Steel North Shore at Canton Beau Menard Structural Option Structural Redesign - Steel Lateral Deflection Story Total Lateral Displacement (in) 1 .041 2 .079 3 .121 4 .276

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

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

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

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

Structural Redesign – Pre-cast North Shore at Canton Beau Menard Structural Option Structural Redesign – 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

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

Structural Redesign – Pre-cast North Shore at Canton Beau Menard Structural Option Structural Redesign – 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

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

Construction Management – Cost North Shore at Canton Beau Menard Structural Option Construction Management – Cost 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 Pier cost increased

Construction Management – Durations North Shore at Canton Beau Menard Structural Option Construction Management – 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 Additional pier construction required

Conclusions / Recommendations 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

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

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