2001 Winter Presentation Site Location Site View Site

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2001 Winter Presentation

2001 Winter Presentation

Site Location

Site Location

Site View

Site View

Site History 1923 1968 Boston Improved Sewage 1972

Site History 1923 1968 Boston Improved Sewage 1972

Site Constraints § Peninsula, surrounded by water § Area of in-filled land § Winter

Site Constraints § Peninsula, surrounded by water § Area of in-filled land § Winter snow

Engineering Constraints n Soil Properties n n n Compactable Soil 4000 psf bearing capacity

Engineering Constraints n Soil Properties n n n Compactable Soil 4000 psf bearing capacity Capacity, silt/clay and sand mixture 20’ water table Loading n n Live Load Dead Load Wind Load Roof Load 50 70 35 28 psf psf

Budget Information

Budget Information

Architect’s Vision “With a clear understanding of the historical influences of site, the land,

Architect’s Vision “With a clear understanding of the historical influences of site, the land, the harbor, the history of Boston…”

Architectural Design 1 (Redesign) n n Keep the integrity of the DOME Allow open

Architectural Design 1 (Redesign) n n Keep the integrity of the DOME Allow open center to remain Evaluate programmatic functionality Relocate sloped floor rooms to basement level for ease of constructability of slabs

Architectural Design 1 (Redesign)

Architectural Design 1 (Redesign)

Engineering Design 1 Steel (Redesign) n n Composite steel design Regular column grid Easy

Engineering Design 1 Steel (Redesign) n n Composite steel design Regular column grid Easy installation Steel moment frame Typical Beam: W 14 X 26 c=1” Moment Frame: W 16 X 36

Design 1 Steel Estimate (Redesign) n Total = $3, 145, 000

Design 1 Steel Estimate (Redesign) n Total = $3, 145, 000

Engineering Design 1 Precast (Redesign) n n 12” masonry wall 24” deep precast concrete

Engineering Design 1 Precast (Redesign) n n 12” masonry wall 24” deep precast concrete girders

Design 1 Precast Estimate (Redesign) n Total = $3, 231, 000

Design 1 Precast Estimate (Redesign) n Total = $3, 231, 000

Design 1 Schedules n Finish Dates: n n Durations: n Precast Steel - 09/28/16,

Design 1 Schedules n Finish Dates: n n Durations: n Precast Steel - 09/28/16, Precast - 10/05/16 Steel – 8 mo & 4 wks, Precast – 9 mo

Architectural Design 2 n Concepts n n n Flow like the waves of the

Architectural Design 2 n Concepts n n n Flow like the waves of the bay Structure like the hull of a boat Gesture towards the historic influence of the site Open walls towards the oak trees Individuality between faculty and students

Architectural Design 2 Auditorium Classrooms, seminar rooms, labs Student offices Faculty offices, facilities, administration

Architectural Design 2 Auditorium Classrooms, seminar rooms, labs Student offices Faculty offices, facilities, administration

Engineering Design 2 Steel § Gravity System § Composite steel design § No truss

Engineering Design 2 Steel § Gravity System § Composite steel design § No truss for auditorium Typical Beam W 14 X 30 Typ Girder W 24 X 55 Typ Col W 12 X 40 Auditorium beam w 24 X 76

Engineering Design 2 Steel § Steel bracing § Tube 3 X 3 X 1/4

Engineering Design 2 Steel § Steel bracing § Tube 3 X 3 X 1/4 § Foundation layout § Strip & spread footings

Design 2 Steel Estimate n Total = $2, 722, 000

Design 2 Steel Estimate n Total = $2, 722, 000

Engineering Design 2 Precast Concrete gravity system § Load bearing wall, 2 -way slab

Engineering Design 2 Precast Concrete gravity system § Load bearing wall, 2 -way slab § 48’ post-tensioned girders

Engineering Design 2 Precast § 12” masonry walls § Load path § Foundation layout

Engineering Design 2 Precast § 12” masonry walls § Load path § Foundation layout § 3’ wide strip footing

Design 2 Precast Estimate n Total = $2, 800, 000

Design 2 Precast Estimate n Total = $2, 800, 000

Design 2 Schedules n Finish Dates: n n Duration: n Precast Steel - 09/14/16,

Design 2 Schedules n Finish Dates: n n Duration: n Precast Steel - 09/14/16, Precast - 09/21/16 Steel – 8 mo & 2 wks, Precast – 8 mo & 3 wks

Architectural Design 3 n Concepts § Box in a box § Simple, double structure

Architectural Design 3 n Concepts § Box in a box § Simple, double structure § Advantageous use of sloped classroom and auditorium floors § Flow of light to below grade level § Exterior wood structure to gesture towards trees

Architectural Design 3 Auditorium Classrooms, seminar rooms, labs Student offices Faculty offices, facilities, administration

Architectural Design 3 Auditorium Classrooms, seminar rooms, labs Student offices Faculty offices, facilities, administration

Architectural Design 3

Architectural Design 3

Engineering Design 3 Steel Inside Frame Plan Gravity System Steel Bracing Tube 3 x

Engineering Design 3 Steel Inside Frame Plan Gravity System Steel Bracing Tube 3 x 3 x 1/4

Engineering Design 3 Steel Outside Frame Plan Flat Roof Steel Knee Brace Frame

Engineering Design 3 Steel Outside Frame Plan Flat Roof Steel Knee Brace Frame

Design 3 Steel Estimate n Total = $3, 083, 000

Design 3 Steel Estimate n Total = $3, 083, 000

Engineering Design 3 Wood Inside Frame Plan Gravity System Wood Wall Lateral System

Engineering Design 3 Wood Inside Frame Plan Gravity System Wood Wall Lateral System

Engineering Design 3 Wood Outside Frame Plan Pre-fabricated wood truss with knee brace Prefab

Engineering Design 3 Wood Outside Frame Plan Pre-fabricated wood truss with knee brace Prefab wood truss 2"X 6" Column 12"DIA Knee brace 2"X 6" Joist 2"X 4" Steel Brace 12"X 2"

Engineering Design 3 Wood Outside Structure Load Path Gravity Load Lateral Load

Engineering Design 3 Wood Outside Structure Load Path Gravity Load Lateral Load

Engineering Typical Connection Steel Bracing Wood With Steel Plate & Bolts

Engineering Typical Connection Steel Bracing Wood With Steel Plate & Bolts

Design 3 Wood Estimate n Total = $2, 978, 000

Design 3 Wood Estimate n Total = $2, 978, 000

Design 3 Schedules n Finish Dates: n n Durations: n Wood Steel - 08/24/16,

Design 3 Schedules n Finish Dates: n n Durations: n Wood Steel - 08/24/16, Wood - 09/07/16 Steel – 7 mo & 3 wks, Wood – 8 mo & 1 wk

Equipment Selection Truck Crane Mini Excavator Skid Steer Loader

Equipment Selection Truck Crane Mini Excavator Skid Steer Loader

Budget Comparison

Budget Comparison

Design Evaluations Design Architect Engineer CM 1 S Attractive Dome Design Moment Frame Is

Design Evaluations Design Architect Engineer CM 1 S Attractive Dome Design Moment Frame Is Expensive Constructability & Budget Concerns 1 P Good Circulation Dome Poses Wind Load Problems Constructability & Budget Concerns 2 S Concept Fits Local Area Rigid Diaphragm Problem Best Budget 2 P Least Visually Pleasing Rigid Diaphragm Problem Good Budget 3 S Best Looking Building Girders Have Deflection Problem Very Constructible 3 W Very Interesting Building Sloped Roof Helps Snow Load Very Constructible

Explanation of design rankings: 1=Best… 6=Worst Decision Matrix Lowest point total wins Design Attractive

Explanation of design rankings: 1=Best… 6=Worst Decision Matrix Lowest point total wins Design Attractive Interest Budget Schedule Total 1 S 4 3 5 5 17 1 P 3 4 6 6 19 2 S 6 5 1 3 15 2 P 5 6 2 4 17 3 S 2 2 3 1 8 3 W 1 1 4 2 8

Design Choice n Design 3 n Best combination of strengths vs. weaknesses were 3

Design Choice n Design 3 n Best combination of strengths vs. weaknesses were 3 W & 3 S from matrix n Wood/Steel Hybrid • Combine the attractiveness/interest of 3 W with the cost and schedule benefits of 3 S • Keep wood exterior structure of 3 W, but incorporate the steel interior structure of 3 S

Team Dynamics/Interaction

Team Dynamics/Interaction

Team Dynamics/Interaction “The most challenging and the most successful part of this whole process

Team Dynamics/Interaction “The most challenging and the most successful part of this whole process is the perpetual learning of our own and each others discipline and how we must collaborate in order to succeed. ” “The structural system is not the only aspect of the building. We need to think about the others' intentions and constraints. Compromising between different intentions is very important in developing a successful project. ” “The greatest thing we will take away from this class is learning how to successfully work in a challenging situation with diverse people on a project with little contact. ”

Lessons Learned n Cross-Discipline Knowledge n n n Teamwork n n Vocabulary Interests/Concerns Tolerance

Lessons Learned n Cross-Discipline Knowledge n n n Teamwork n n Vocabulary Interests/Concerns Tolerance Dependence/Collaboration Organization/Work Habits Technology n New Applications

2001 Winter Presentation Questions?

2001 Winter Presentation Questions?