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Office Building-G EASTERN UNITED STATES. Carl Hubben – Structural Option Ae senior thesis - 2011. Outline. Office Building-G Eastern United States. Carl Hubben Structural Option. Project Information Existing Structure Project Goals Structural Depth Architectural Breadth Conclusions.

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slide1

Office Building-G

EASTERN UNITED STATES

Carl Hubben – Structural Option

Ae senior thesis - 2011

slide2

Outline

Office Building-G

Eastern United States

Carl Hubben

Structural Option

Project Information

Existing Structure

Project Goals

Structural Depth

Architectural Breadth

Conclusions

slide3

Office Building-G

Eastern United States

Carl Hubben

Structural Option

Project Information

Existing Structure

Project Goals

Structural Depth

Architectural Breadth

Conclusions

Project Information

slide4

Project Information

Office Building-G

Eastern United States

Carl Hubben

Structural Option

Project Information

Existing Structure

Project Goals

Structural Depth

Architectural Breadth

Conclusions

Owner Restrictions:

Occupancy Type:

Square Footage:

Project Cost:

Number of Stories:

Project details cannot be disclosed

Mixed use office

649,641 sf

$70,000,000

14 levels of office space

4 levels of parking below grade

slide5

Office Building-G

Eastern United States

Carl Hubben

Structural Option

  • Project Information
  • Existing Structure
  • Foundation
  • Superstructure
  • Project Goals
  • Structural Depth
  • Architectural Breadth
  • Conclusions

Existing Structure

slide6

Carl Hubben

Structural Option

Foundation

Office Building-G

Eastern United States

Key Points

  • Project Information
  • Existing Structure
  • Foundation
  • Superstructure
  • Project Goals
  • Structural Depth
  • Architectural Breadth
  • Conclusions
  • Spread Footings
  • Up to 3100 axial kips
  • Parking garage and superstructure
  • Perimeter Foundation Wall

Figure 8

slide7

Superstructure

Office Building-G

Eastern United States

Carl Hubben

Structural Option

Key Points

  • Project Information
  • Existing Structure
  • Foundation
  • Superstructure
  • Project Goals
  • Structural Depth
  • Architectural Breadth
  • Conclusions

Existing Core

  • Cast in place reinforced concrete
  • Post-tensioned girders with 7” thick one-way slab
    • Structural depth of 18”
  • Exposed round and rectangular columns
  • 10” thick shear wall core
slide8

Office Building-G

Eastern United States

Carl Hubben

Structural Option

Project Information

Existing Structure

Project Goals

Structural Depth

Architectural Breadth

Conclusions

Project Goals

slide9

Project Goals

Office Building-G

Eastern United States

Carl Hubben

Structural Option

Project Information

Existing Structure

Project Goals

Structural Depth

Architectural Breadth

Conclusions

  • Column Free Space
  • Remove Shear Wall Core
  • Maintain Floor to Floor Height
  • Determine Architectural Impacts
slide10

Office Building-G

Eastern United States

Carl Hubben

Structural Option

  • Project Information
  • Existing Structure
  • Project Goals
  • Structural Depth
  • Loads
  • Floor System
  • Columns
  • Lateral System
  • Connections
  • Architectural Breadth
  • Conclusions

Structural Depth

slide11

Loads

Office Building-G

Eastern United States

Carl Hubben

Structural Option

  • Project Information
  • Existing Structure
  • Project Goals
  • Structural Depth
  • Loads
  • Floor System
  • Columns
  • Lateral System
  • Connections
  • Architectural Breadth
  • Conclusions

Wind:

Seismic:

Flexible Structure

Reduced Dead Load

New Lateral System

slide12

Floor System

Office Building-G

Eastern United States

Carl Hubben

Structural Option

Floor Slab

Framing Plan

  • Project Information
  • Existing Structure
  • Project Goals
  • Structural Depth
  • Loads
  • Floor System
  • Columns
  • Lateral System
  • Connections
  • Architectural Breadth
  • Conclusions

Composite and Composite Castellated Beams

  • Composite metal decking
  • 4 ½” total thickness
slide13

Floor System

Office Building-G

Eastern United States

Carl Hubben

Structural Option

Castellated Beam Design

Secondary Forces

Primary Forces

  • Project Information
  • Existing Structure
  • Project Goals
  • Structural Depth
  • Loads
  • Floor System
  • Columns
  • Lateral System
  • Connections
  • Architectural Breadth
  • Conclusions
  • Spans range between 45’ – 65’
  • Vierendeel Bending
  • Primary and secondary forces
slide14

Floor System

Office Building-G

Eastern United States

Carl Hubben

Structural Option

Existing Design

Redesign

  • Project Information
  • Existing Structure
  • Project Goals
  • Structural Depth
  • Loads
  • Floor System
  • Columns
  • Lateral System
  • Connections
  • Architectural Breadth
  • Conclusions
slide15

Columns

Office Building-G

Eastern United States

Carl Hubben

Structural Option

General

  • Project Information
  • Existing Structure
  • Project Goals
  • Structural Depth
  • Loads
  • Floor System
  • Columns
  • Lateral System
  • Connections
  • Architectural Breadth
  • Conclusions

12 Lateral Columns

23 Gravity Columns

Located on the façade or around vertical transportation

~40’ between columns on exterior

W14 Sizes

slide16

Lateral System

Office Building-G

Eastern United States

Carl Hubben

Structural Option

North Elevation

General

  • Project Information
  • Existing Structure
  • Project Goals
  • Structural Depth
  • Loads
  • Floor System
  • Columns
  • Lateral System
  • Connections
  • Architectural Breadth
  • Conclusions

Concentrically Braced

8 Chevron Frames

Span 2 floors

V and inverted V design

Symmetrical Design

slide17

Lateral System

Office Building-G

Eastern United States

Carl Hubben

Structural Option

Yellow Brace

Green Brace

Design

  • Project Information
  • Existing Structure
  • Project Goals
  • Structural Depth
  • Loads
  • Floor System
  • Columns
  • Lateral System
  • Connections
  • Architectural Breadth
  • Conclusions

HSS14X14 Braces:

1/2

5/16

Load Combination: 1.2D + 0.5L + 0.5Lr + 1.0E

Overstrength and redundancy factor: Ωo = 2.0, ρ = 1.0

Top Floor Deflection: H/400, 5.2” < 5.3”

Inherent Torsion: CM-CR = 6.7’

3/8

5/16

1/2

3/8

Beam Size:

W27X161

Beam Size:

W27X94

1/2

5/16

5/8

1/2

1/2

1/2

5/8

5/8

slide18

Connections

Office Building-G

Eastern United States

Carl Hubben

Structural Option

Limit States

  • Gusset Limit States:
    • Tension Yielding
    • Tension Rupture
    • Local Buckling
  • Gusset/Beam Limit States:
    • Weld Rupture
    • Base Metal Strength
      • Gusset
      • Beam
  • Beam Limit States:
    • Web Tension Yielding
    • Web Crippling
    • Web Buckling
  • Project Information
  • Existing Structure
  • Project Goals
  • Structural Depth
  • Loads
  • Floor System
  • Columns
  • Lateral System
  • Connections
  • Architectural Breadth
  • Conclusions
  • Brace Limit States:
    • Tension Yielding
    • Tension Rupture
  • Brace/Gusset Limit States:
    • Weld Rupture
    • Base Metal Strength
      • Brace
      • Gusset

North Elevation

West Elevation

slide19

Office Building-G

Eastern United States

Carl Hubben

Structural Option

Project Information

Existing Structure

Project Goals

Structural Depth

Architectural Breadth

Conclusions

Architectural Breadth

slide20

Architecture Breadth

Office Building-G

Eastern United States

Carl Hubben

Structural Option

Exterior

Plan View

Floor Section

Project Information

Existing Structure

Project Goals

Structural Depth

Architectural Breadth

Conclusions

slide21

Office Building-G

Eastern United States

Carl Hubben

Structural Option

Project Information

Existing Structure

Project Goals

Structural Depth

Architectural Breadth

Conclusions

Conclusions

slide22

Conclusions

Office Building-G

Eastern United States

Carl Hubben

Structural Option

Goals:

Disadvantages:

Project Information

Existing Structure

Project Goals

Structural Depth

Architectural Breadth

Conclusions

  • Column Free Space
  • Remove Shear Wall Core
  • Maintain Floor to Floor Height
  • Determine Architectural Impacts

More Coordination

Increased Cost

Foundation Impacts

slide23

Acknowledgements

Office Building-G

Eastern United States

Carl Hubben

Structural Option

Turner Construction Company:

Carlos Flores

Ryan-Biggs Associates:

Chris Latreille

The Pennsylvania State University:

Dr. Ali Memari

Dr. Linda Hanagan

Dr. Louis Geschwindner

Robert Holland

Kevin Parfitt

I would also like to give a special thanks to my friends and family for their help and support throughout the year.

Project Information

Existing Structure

Project Goals

Structural Depth

Architectural Breadth

Conclusions

slide24

Questions

Office Building-G

Eastern United States

Carl Hubben

Structural Option

slide26

Yellow Brace

Green Brace

HSS14X14 Braces:

1/2

5/16

3/8

5/16

1/2

3/8

Beam Size:

W27X161

Beam Size:

W27X94

1/2

5/16

5/8

1/2

1/2

1/2

5/8

5/8

slide27

Brace Limit States:

    • Tension Yielding
    • Tension Rupture
  • Brace/Gusset Limit States:
    • Weld Rupture
    • Base Metal Strength
      • Brace
      • Gusset
  • Gusset Limit States
    • Tension Yielding
    • Tension Rupture
    • Local Buckling
  • Gusset/Beam Limit States
    • Weld Rupture
    • Base Metal Strength
      • Gusset
      • Beam
  • Beam
    • Web Tension Yielding
    • Web Crippling
    • Web Buckling
    • Shear Yielding
  • Beam/End Plate
    • Weld Rupture
    • Base Metal Strength
      • Beam
      • End Plate
  • End Plate Limit States
    • Gross Shear
    • Net Shear
    • Block Shear
  • Angle Limit States
    • Prying Effects
    • Shear Yielding
    • Shear Rupture
    • Block Shear
  • Bolt
    • Shear
    • Tension
    • Bearing and Tear Out
  • Gusset/Plate
    • Weld Rupture
    • Base Metal Strength
      • Gusset
      • Plate
  • Plate
    • Plate bending
  • Plate/Column
    • Weld Rupture
    • Base Metal Strength
      • Plate
      • Column
  • Column
    • Local Flange Yielding
    • Local Flange Bending
    • Local Flange Crippling
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