Oakland Cathedral (NXPowerLite).ppt•Building Shape was comprised of a Vesica Pisces interior and...
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1 Innovative Use of Glulam in the Oakland Innovative Use of Glulam in the Oakland Cathedral Cathedral – Oakland, California Oakland, California Paul C. Gilham, P.E., S.E. Paul C. Gilham, P.E., S.E. Chief Engineer Chief Engineer Western Wood Structures, Inc. Western Wood Structures, Inc. Wood Products Council via Canadian Wood Council and the Wood Wood Products Council via Canadian Wood Council and the Wood Solutions Fair is a Registered Provider with The American Institute of Solutions Fair is a Registered Provider with The American Institute of Architects Continuing Education Systems. Credit earned on completion Architects Continuing Education Systems. Credit earned on completion of this program will be reported to CES Records for AIA members. of this program will be reported to CES Records for AIA members. Certificates of Completion for non Certificates of Completion for non-AIA members are available on AIA members are available on request. request. This program is registered with the AIA/CES for continuing professional This program is registered with the AIA/CES for continuing professional education. As such, it does not include content that may be deemed or education. As such, it does not include content that may be deemed or construed to be an approval or endorsement by the AIA of any material construed to be an approval or endorsement by the AIA of any material of construction or any method or manner of handling, using, of construction or any method or manner of handling, using, distributing, or dealing in any material or product. Questions related to distributing, or dealing in any material or product. Questions related to specific materials, methods, and services will be addressed at the specific materials, methods, and services will be addressed at the conclusion of this presentation. conclusion of this presentation. Program Education Credit Information Learning Objectives Learning Objectives 1. 1. Capability of a Glulam structure to fulfill Capability of a Glulam structure to fulfill architectural goals in significant structures. architectural goals in significant structures. 2. 2. Processes used to insure Glulams achieved Processes used to insure Glulams achieved architectural goals. architectural goals. 3. 3. Processes used to insure structural Processes used to insure structural performance of Glulam Structural systems. performance of Glulam Structural systems. Innovative Use of Glulam in the Innovative Use of Glulam in the Oakland Cathedral Oakland Cathedral – Oakland Oakland California California Paul C. Gilham, P.E., S.E. Paul C. Gilham, P.E., S.E. Chief Engineer Chief Engineer Western Wood Structures, Inc. Western Wood Structures, Inc. Tualatin, Oregon Tualatin, Oregon Innovative Use of Glulam in the Oakland Cathedral Innovative Use of Glulam in the Oakland Cathedral – Oakland California Oakland California •Christ the Light Cathedral - Design and Construction Team •Catholic Cathedral Corporation of the East Bay – Owner •Conversion Management Associates – Project manager •Kendall Heaton Architects – Architect of Record •Skidmore Owens and Merrill LLP – Design Architect •Skidmore Owens and Merrill LLP – Structural Engineer •Webcor Builders – General Contractor •Western Wood Structures, Inc. – Glulam supplier and erector •Enclos Corp – Glazing Supplier and Installer •Design Goals •Architectural •“Light as the Central Focus” •“Light could be the key to create a contemporary design that was still evocative of the Church’s two millenium-old traditions” •With the alter as the focus of the 1500 seat sanctuary, The architects chose a more “fluid, curvilinear, minimalist space for the overall design of the cathedral’s sanctuary”
Transcript of Oakland Cathedral (NXPowerLite).ppt•Building Shape was comprised of a Vesica Pisces interior and...
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Innovative Use of Glulam in the Oakland Innovative Use of Glulam in the Oakland
Cathedral Cathedral –– Oakland, CaliforniaOakland, California
Paul C. Gilham, P.E., S.E.Paul C. Gilham, P.E., S.E.
Chief EngineerChief Engineer
Western Wood Structures, Inc.Western Wood Structures, Inc.
Wood Products Council via Canadian Wood Council and the Wood Wood Products Council via Canadian Wood Council and the Wood
Solutions Fair is a Registered Provider with The American Institute of Solutions Fair is a Registered Provider with The American Institute of
Architects Continuing Education Systems. Credit earned on completion Architects Continuing Education Systems. Credit earned on completion of this program will be reported to CES Records for AIA members. of this program will be reported to CES Records for AIA members.
Certificates of Completion for nonCertificates of Completion for non--AIA members are available on AIA members are available on request.request.
This program is registered with the AIA/CES for continuing professional This program is registered with the AIA/CES for continuing professional education. As such, it does not include content that may be deemed or education. As such, it does not include content that may be deemed or
construed to be an approval or endorsement by the AIA of any material construed to be an approval or endorsement by the AIA of any material of construction or any method or manner of handling, using, of construction or any method or manner of handling, using,
distributing, or dealing in any material or product. Questions related to distributing, or dealing in any material or product. Questions related to specific materials, methods, and services will be addressed at the specific materials, methods, and services will be addressed at the
conclusion of this presentation.conclusion of this presentation.
Program Education Credit Information
Learning ObjectivesLearning Objectives
1.1. Capability of a Glulam structure to fulfill Capability of a Glulam structure to fulfill architectural goals in significant structures.architectural goals in significant structures.
2.2. Processes used to insure Glulams achieved Processes used to insure Glulams achieved architectural goals.architectural goals.
3.3. Processes used to insure structural Processes used to insure structural performance of Glulam Structural systems.performance of Glulam Structural systems.
Innovative Use of Glulam in the Innovative Use of Glulam in the
Oakland Cathedral Oakland Cathedral –– Oakland Oakland CaliforniaCalifornia
Paul C. Gilham, P.E., S.E.Paul C. Gilham, P.E., S.E.Chief EngineerChief Engineer
Western Wood Structures, Inc.Western Wood Structures, Inc.
Tualatin, OregonTualatin, Oregon
Innovative Use of Glulam in the Oakland Cathedral Innovative Use of Glulam in the Oakland Cathedral ––Oakland CaliforniaOakland California
•Christ the Light Cathedral - Design and Construction Team
•Catholic Cathedral Corporation of the East Bay – Owner
•Conversion Management Associates – Project manager
•Kendall Heaton Architects – Architect of Record
•Skidmore Owens and Merrill LLP – Design Architect
•Skidmore Owens and Merrill LLP – Structural Engineer
•Webcor Builders – General Contractor
•Western Wood Structures, Inc. – Glulam supplier and erector
•Enclos Corp – Glazing Supplier and Installer
•Design Goals
•Architectural
•“Light as the Central Focus”
•“Light could be the key to create a contemporary design that was still evocative of the Church’s two millenium-old traditions”
•With the alter as the focus of the 1500 seat sanctuary, The architects chose a more “fluid, curvilinear, minimalist space for the overall design of the cathedral’s sanctuary”
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•Design Goals
•Architectural
•Design Goals
•Architectural
•Design Life of 300 years. “We felt that the 300 year standard applied not only to the cathedral’s structural integrity but equally to the aesthetic that that building should be architecturally worthy of lasting at least until the 24th century.”
•Design Goals
•Architectural
•“Wood, rather than steel, was chosen “to form the cathedral’s supporting lattice because of its warmth and reference to light and well as its religious significance.”
•The architects felt that Douglas Fir framing would provide a natural, renewable, more beautiful, and equally earthquake-proof structural skin to support the outermost glass skin…”
•Wood also proved “to be a pivotal, economic advantage that would ultimately win SOM the design contract.”
Craig Hartman, FAIA, SOM
•Design Goals
•Architectural
•Building Shape was comprised of a Vesica Pisces interior and conical exterior
•Design Goals
•Structural
•Building life of 300 years
•Withstand a 1000 year earthquake event.
•The site is located 4.7 km from the Hayward Fault and 25 km from the San Andreas Fault
•“To an engineer, locating a 110 foot high cathedral made of delicate materials so close to an active fault line and expecting it to survive a 1000 year earthquake like the 1906 Earthquake – that is the ultimate challenge” Mark Sarkisian, S.E. SOM
•Unique Specifications
•Mock-up of structural system
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•Unique Specifications
•Mock-up of structural system
•Unique Specifications
•Testing of mock-up
•Unique Specifications
•“Premium, no putty” appearance grade at Ribs and Mullions
•Unique Specifications
•Industrial, Sanded louvers
•Unique Specifications
•Construction Phase Survey of Program of Cathedral Superstructure required surveys for:
•Curved Glued laminated timber ribs
•Straight Glued laminated Mullions
•Final tolerance of 1” in or out, up or down.
Structural Aspects
•Code Issues
•“Tension Only Ductility” Structural System not included in CBC => Peer Review required:
•Ductility Testing of Tension Members
•Non-Linear Push-Over analysis
•Time History Seismic Analysis
•Base Isolation to reduce seismic motion
•Pre-tensioning of tension members
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Structural Aspects
•Code Issues
•Base Isolation – Double Concave Friction Pendulum Isolators
Structural Aspects
•Code Issues
•Base Isolation – Double Concave Friction Pendulum Isolators
Structural Aspects
•Code Issues
•Base Isolation – Double Concave Friction Pendulum Isolators
Structural Aspects
•Code Issues
•Ductility Testing of Tension Members
Structural Aspects
•Code Issues
•Ductility Testing of Tension Members
Structural Aspects
•Code Issues•Pre-tensioning of tension members
•Determine required torque to obtain specified load•Develop tensioning sequence to eliminate load interference
•Adjust specified loads for ambient rod temperature•Monitor rod forces with Strain gages.
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Structural Aspects Structural Aspects
Structural Aspects
•Code Issues
•Pre-tensioning of tension members
•Adjust specified loads for ambient rod temperature
•Monitor rod forces with Strain gages.
Innovative Use of Glulam in the Oakland Cathedral Innovative Use of Glulam in the Oakland Cathedral ––Oakland CaliforniaOakland California
•Glulam manufacturing and fabrication methods
•Autocad modeling of structure
•Detailing of steel and glulam assemblies
•Manufacturing, Fabrication and pre-assembly of Glulam members
Glulam manufacturing and fabrication methods -Autocad modeling of structure
Glulam manufacturing and fabrication methods -Autocad modeling of structure
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Glulam manufacturing and fabrication methods -Autocad modeling of structure
Glulam manufacturing and fabrication methods -Autocad modeling of structure
•Glulam manufacturing and fabrication methods
•Manufacturing, Fabrication and pre-assembly of Glulam members
•Glulam manufacturing and fabrication methods
•Manufacturing, Fabrication and pre-assembly of Glulam members
•Glulam manufacturing and fabrication methods
•Manufacturing, Fabrication and pre-assembly of Glulam members
•Glulam manufacturing and fabrication methods
•Manufacturing, Fabrication and pre-assembly of Glulam members
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•Glulam erection
•Transportation of members
•Glulam erection
•Transportation of members
•Glulam erection
•Installation of Oculus
•Glulam erection
•Installation of Ribs, Louvers and Mullions
•Glulam erection
•Installation of Ribs, Louvers and Mullions
•Glulam erection
•Installation of Ribs, Louvers and Mullions
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•Glulam erection
•Installation of Ribs, Louvers and Mullions
•Glulam erection
•Installation of Ribs, Louvers and Mullions
•Glulam erection
•Installation of Ribs, Louvers and Mullions
•Glulam erection
•Adjusting to final tolerances.
•Glulam erection
•Adjusting to final tolerances.
•Organ Platform
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•Organ Platform •Organ Platform
•Installation of Glazing •Installation of Glazing
•Installation of Glazing •Installation of Glazing
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•Installation of Glazing •Conclusion
•Conclusion •Conclusion
Questions/ Comments?Questions/ Comments?
This concludes the: This concludes the:
American Institute of ArchitectsAmerican Institute of Architects
Continuing Education Systems ProgramContinuing Education Systems Program
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