rebecca ho ~ lighting/electrical bahen centre for information technology – university of toronto...

Bahen Centre for Information Technology – University of Toronto

Rebecca Ho ~ Lighting/Electrical

Schematic Design ProposalSchematic Design Proposal

Bahen Centre for Information TechnologyUniversity of Toronto

Toronto, Ontario, Canada

Rebecca HoLighting/Electrical Option

December 10th, 2002

TM



Building LocationBuilding Location

The Bahen Centre for Information Technology is located in the heart of downtown Toronto in Ontario, Canada.

It is located in the St. George campus of the University of Toronto, at the intersection of St. George and College Street.



Building InformationBuilding Information

Photo Credit Diamond & Schmitt Architects Inc.

Owner:Owner: University of Toronto

Architect & Planning:Architect & Planning: Diamond & Schmitt Architects Incorporated

General Contractor & Construction Management:General Contractor & Construction Management: PCL Constructors Canada

Electrical Engineers & Lighting Design:Electrical Engineers & Lighting Design: Crossey Engineering Limited

Mechanical Engineers:Mechanical Engineers: Keen Engineering



Building FeaturesBuilding Features

• Total building area 377,000 ft2 (8 stories)

• Project cost $100 Million dollars ($150 Million Canadian dollar)

• Featuring lecture halls, seminar rooms, offices, and laboratories

• It is the largest of its kind among Canadian Universities nationwide

Photo Credit Diamond & Schmitt Architects Inc. Photo Credit Diamond & Schmitt Architects Inc.



Building UseBuilding Use


•Facility for information technology, electrical engineering, computer engineering, and industrial engineering education at the University of Toronto.





Design MetaphorDesign Metaphor““The Computer Chip and Motherboard”The Computer Chip and Motherboard”

Symbolizes the acquisition and generation of knowledge and information

Bahen Centre of information technology is a place for the education and research of information technology

Symbolized by glowing objects (light of knowledge) and strategically placed smaller marker light sources representing the organizational structure of information and the physical appearance of a motherboard



SpacesSpaces

• Gallery 1134

• Lecture Hall 1210

• Meeting Room 4287

• Outdoor Patio

(on 4th floor)

N



General design goals for all four General design goals for all four spacesspaces

• To provide quietness, non-cluttered, and a clean look

• To highlight architectural elements and attract attention

• To provide an energy efficient design

• To maintain design metaphor throughout all the spaces



First space to considerFirst space to consider

• Gallery 1134



• Outdoor PatioN



Ground Floor Plan

GalleryGalleryThe gallery space is a corridor enclosed by a glass lined wall of auditorium #1130…

…and a large plane of windows facing the pedestrian walkway of St. George Street.

N



GalleryGallery

Computer lab and auditorium walls are lined with glass panels, which will provide sunlight into those spaces

The large windows adjacent to the sidewalk makes this a very visible area from outside.

N

Ground Floor Plan



Design Criteria • To direct movement through

the corridor

• To be adequately lit to promote safety

• Direct glare and shadowing issues from overhead luminaire should be considered

• To add visual interest to the corridor space

• Target illuminance– Horizontal: 5 fc (50 Lux)

GalleryGallery



GalleryGalleryDesign Concept

Backlight frit glass panels from above to create a grazing effect.

Use patterned ceramic fritted glass for glass panels on wall.

Goal: Goal: To eliminate clutter in the space and achieve a clean look

Corridor will be lighted indirectly by the light shining through the glass.



GalleryGalleryDesign Concept continued…

Wall wash fixture with glass wall detail

Fixtures will be placed inside the auditorium and computer lab side of the glass to avoid glare for occupants of those rooms.



GalleryGalleryDesign Concept (Ceramic Fritted Glass side note)

Examples of Application:

•“Ceramic fritted glass consists of a ceramic based paint screen-printed onto glass. The glass is then heat strengthened or toughened which fuses the paint to the glass creating a permanent durable coating” - National Glass Catalogue and Reference Guide 2000

•Can be used to filter light or reduce glare with different pattern designs.

•When fritted glass is used in conjunction with a light source, it can create a “glowing” visual appearance.




Fiber optics lining the top and bottom of the curved wall, creating movement along the corridor.

The lighted fritted glass panels will create a “glowing” curved wall appearance for onlookers from the outside.

Goal: Goal: To enhance architectural elements (curved glass wall)




The lighted fritted glass panels will create a “glowing” curved wall appearance for onlookers from the outside. It also represents the metaphor for the project, where the glowing wall symbolizes a source of knowledge and information.

Goal: Goal: To attract the attention of pedestrians looking through windows




Corridor will be lighted indirectly by the light shining through the glass.

Goal: Goal: To provide adequate illuminance safety in the corridor



GalleryGalleryLighting Equipment

Side emitting fiber encased along top and bottom of curved wall in Gallery.

Ceiling mounted, small concealed, one lamp fluorescent T-8 wallwash fixture.

Fritted glass washed by linear fluorescent fixture will become a light source itself, lighting up the corridor. The patter of the frit should be horizontal to promote movement along the gallery.



Next space to considerNext space to consider

• Gallery 1134



• Outdoor PatioN



Ground Floor Plan

Lecture HallLecture Hall

This 85 seat Lecture Hall features eight rows of seats on a stepped floor. The room does not have windows.

The lecture hall is equipped with an overhead video projector, screen for the projector, and blackboard at the front of the room.

The side walls of the lecture hall features mahogany wood architectural detail designed by the architect.

N



Design Criteria • Consider veiling reflections on table

and blackboard, glare, and reflected glare issues of the space

• Lighting of the vertical surfaces such as chalkboards

• Visual appearance of lecturer at the front of the room and shadows

• Provide different levels of illumination for different tasks (lecture, note-taking, audiovisual presentation)

• Target Illuminance: – Horizontal: 50 fc (500 Lux)– Vertical: 50 fc (500 Lux)

Lecture HallLecture Hall



Lecture HallLecture HallDesign Concept

Fixtures will be aligned orthogonally to the orientation of the rows of tables to avoid glare from the downlight portion of the fixtures.

Suspended indirect/Direct fixtures (with LED lights on the bottom side) to provide a comfortable, diffuse illumination for the entire space.

Goal: Goal: To provide an even ambient lighting scheme that causes minimal shadow and glare



Lecture HallLecture HallDesign Concept continued…

The LED on the fixture continues to symbolize the project metaphor




Cove lighting for drop ceiling to illuminate the perimeter of the room, preventing the “caved-in” feeling. The lights will also highlight the mahogany wood architectural detail mounted on the walls all around the room.

Goal: Goal: To highlight the architectural detail in the space




Recessed asymmetrical fluorescent fixture to light vertical surfaces (blackboards, screen) and lecturer at the front of the room

Goal: Goal: To provide adequate illuminance for the vertical surfaces at the front of the room



Lecture HallLecture HallControl Systems

At least two different scenes will be required for: •Regular lectures and note-taking•Audio-visual presentations

Special controls are need to set different scenes and zones of lighting for the lecture hall. The control should have the capability to dim different groups of lighting required for various tasks and to achieve a desire illuminance level on the various workplane levels.

Requirements:



Lecture HallLecture HallControl Systems continued…

A number of dimming zones must be set up for the linear fluorescent fixtures so that there will be the same illuminance level for the different desktop elevation levels of the room. An additional zone should also be set up for the front of the room and another zone for the cove lighting around the room.

Zone 1 – Front of the room for vertical surfaces and face rendering

Zone 2,3,4 – Above desks and seats for tasks such as note taking and reading

Zone 5 – Cove lighting region



Direct/indirect fluorescent cable suspended fixture with LED on the bottom. Fixtures will be arranged end to end (tandem wiring) and complete with a dimmable ballast.

1’x4’ recessed wall wash fixture for lighting blackboard, screen and vertical surfaces at the front of the room.

Lecture HallLecture HallLighting Equipment

Small concealed, one lamp fluorescent T-8 (32W) wallwash fixture with remote transformer.



Third spaces to considerThird spaces to consider

• Gallery 1134



• Outdoor Patio

(on 4th floor)

N



4th Floor Plan

Meeting RoomMeeting RoomThe meeting room is located on the 4th floor within the core of the grand spiral staircase in the atrium.

Approximately half of the perimeter of this circular room is constructed of glass panels (similar to Gallery).

The ceiling of the room is a drop ceiling with two columns at the edge of the room. A large conference table is located in the center of the room



Design Criteria Meeting RoomMeeting Room

•The lighting system should provide an even, comfortable ambient lighting level for meetings. It should be a dimmable which is useful for audio/visual presentation and special purpose uses.

•Sufficient vertical illumination for whiteboard and presentations

•Facial rendering quality of lights should be considered

•Target Illuminance

•Horizontal 30 fc (300 Lux)

•Vertical 10 fc (100 Lux)



Meeting RoomMeeting RoomDesign Concept

Cove lighting for drop ceiling illuminates the perimeter of the room, preventing the “caved-in” feeling. It also highlights the architectural circular ceiling to make it “float”.

Goal: Goal: To highlight architectural detail (cove and circular room)



Meeting RoomMeeting RoomDesign Concept continued…

Dimmable compact fluorescent downlight provides even ambient lighting for the space.

Goal: Goal: To provide an even ambient lighting for the space



Meeting RoomMeeting Room Design Concept continued…

Goal: Goal: To generate interest in the space and showcase architectural features



Meeting RoomMeeting Room Design Concept continued…



Meeting RoomMeeting RoomLighting Equipment

Small concealed, one lamp fluorescent T-8 (32W) wallwash fixture with remote transformer.

32W Triple Tube compact fluorescent downlight fixture with a medium beam, and open reflector.

LED strip light with RGB color mixing capability



Fourth spaces to considerFourth spaces to consider

• Gallery 1134



• Outdoor Patio

(on 4th floor)

N



Ground Floor Plan

South CourtyardSouth Courtyard

Located in the southwest end of the Bahen Centre. All the rooms on the south side of the building has a view of the courtyard.

It features a green lawn area, groups of trees, and a custom designed water feature



South CourtyardSouth Courtyard

The water feature consists of three concrete-casted silos used to collect rain water. The collected rain

water is then drained into troughs and trickle down to the pool. It then flows to a lower level trough (which runs north/south) and to another trough which is at street level to College Street.



South CourtyardSouth CourtyardDesign Criteria

• To promote safety and security to the area by providing sufficient lighting at night

• To direct movement through dark paths in the courtyard

• To attract attention to the water feature the building, while eliminating glare to the adjacent buildings caused by lighting

• Target illuminance: – Horizontal: 5 fc (50 Lux)– Vertical: 2 fc (20 Lux)



South CourtyardSouth CourtyardDesign Concept

Goal: Goal: To attract attention to the water feature and provide sufficient illuminance for safety in the outdoor space



South CourtyardSouth CourtyardDesign Concept continued…

Steplights used at the base of the water trough to provide a well lit path for pedestrians through the courtyard

Submersible uplight fixtures are recessed into the bottom of the trough.

(Similar application)




Mounting detail for LED fixture inside silo




Trees will be lighted individually from the bottom. This is for aesthetics reasons but also for safety purposes (so that people will not run into trees when walking across courtyard)

(Similar application)




Circular wall lights will be place at steps on the pathway that runs north/south from the courtyard to provide enough light for pedestrians walking on the steps.

LED marker lights will be casted into the concrete ramp for handicap access next to the steps on the path. This will create an “airport runway” effect that will guide people in or out of the courtyard to the street.




Also, inground LED fixtures are to be used in the central portion of the courtyard. These fixtures will be arrange in a pattern paralleling the pattern of dots on a motherboard.

(Example of similar application)




Another example of similar application



South CourtyardSouth CourtyardLighting Equipment

Floor washlight with low voltage halogen tungsten lamp to be installed into the concrete of the troughs to light pathway adjacent to it.

The 120V base mounted fountain fixture uses a 200W PAR46 lamp. This fixture will be place in all the troughs where the water flow from the silos to the lowest trough at street level.

Outdoor rated (wet location) LED wall wash fixture to be mounted on the inside of silo



South CourtyardSouth CourtyardLighting Equipment continued

This LED orientation luminaire is used as marker lights to illuminate the ramp going towards the courtyard to provide orientation for pedestrians.



The end

rebecca ho ~ lighting/electrical bahen centre for information technology – university of toronto...

Documents

heart of downtown toronto

motherboard slide

keen engineering slide

tm slide

electrical engineering

computer engineering

th floor n slide

energy efficient design