Marvin Hall Addition Ashlee Burleson
ARCH 505
Process
I initially began with with a “dumb box� scheme to determine how large the lecture hall would need to be and to establish the structural system. I quickly decided to utilitze top-lighting in my scheme which began to drive my concept. The roof is designed with monitors that allow natural light to enter the lecture hall which is diffused by the wrapped joists that act as baffles. The light is further diffused by the translucent acoustical clouds. The windows in the roof monitors have a louver system which allows the lecture hall to be dark if necessary. The monitor structures allowed for the development of a green roof. I also decided to utilize the southern sun and designed the south facade as a trombe wall for natural heating in winter months.
Seating and Egress
The lecture hall holds up to 244 people plus 6 wheelchair accessible spaces for a total of 250. I have allowed for two main means of egress at the front of the lecture hall. These would also be accessible entrances as they are at grade level.
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Acoustics
For the acoustics of the lecture hall, I wanted to make sure that the panels would distribute the sound to the back of the room. I created several iterations of the acoustical panel layout and applied various sound absorption techniques including acoustical clouds, acoustical side wall panels, and sound absorbing panels in the back of the lecture hall.
Daylighting
Because we were designing a lecture hall which typically needs to be dark for presentations, I decided to provide top-lighting through the use of roof monitors. Top-lighting provides the most even light distribution which is ideal for classes that don’t need a dark presentation room. In my project the light is diffused through the wrapped joist system which function as baffles and further diffused by the translucent acoustical panels. The monitor windows also have louvers in order to shut out the light when necessary.
Natural Ventilation
My building is oriented toward the south in order to take advantage of the prominent south winds. On the south facade I designed a trombe wall that would allow for heat capture in the winter months and would also allow for cross ventilation in summer months by opening the vents in the trombe wall and opening the operable windows in the roof monitors.
Summer Ventilation
Winter Ventilation
Green Roof
The type of green roof I designed in my building is an extensive assembly roof, which is typically used for green roofs that are not accessible. It is a low-maintenance roof which is ideal since it is not intended for recreation, but is intended to reduce the heat-island effect and minimize stormwater runoff.
212"
4mm
[63]PNL SYSTEM
WEATHER - RESISTIVE BARRIER AND AIR BARRIER AS REQUIRED (NBC) EXTERIOR SHEATHING (NBC)
PANEL MODULE
METAL STUD WALL -16 GA MIN. (NBC) INTERIOR GYPSUM (NBC)
PANEL MODULE
FIRE SAFING (NBC)
WALL SECTION
Wall Section
The skin of the building is a curtain wall. The south facade is a trombe wall, comprised of a concrete wall and glazing. On the east and west facades, the curtain wall changes from glazing to an oxidized zinc metal panel which has a similar coloring to the Marvin Stone so that it complements the existing building without trying to copy it.
Wall Section and Details 1/2”=1’
Exploded Axon 1
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Slab
Seating
Structure
Walls
Curtain Wall
Acoustic Walls
Acoustic Ceiling
Roof
Green Roof
Interior Perspective
Exterior Perspective