acoustics project spring 2013
DESCRIPTION
ÂTRANSCRIPT
Lizhu Chen | George Gizas | Ketsia Joseph | Marufa Mannan | Caroll Patino
MetaLworK rooftoP
Existing MatErials
name 1000HZ nrCwalls: Metal .10 .10Seats: Concrete .03 .05
the rooftop auditorium contains concrete seating area and metal walls that is coded with yellow paint which gives a cheerful touch to the space. the space of the rooftop is all open without roof which is not acoustically efficient for people to hear. Another fact with the wall is that it is slanted that is open towards the sky and has an overhang at the front. The shape of the space is open fan that is efficient for viewing the stage.
our team is proposing an enclosed space with stepped wood panel roof for acoustics that are hang from the truss. we chose wood that is reflective which used for the ceiling and part of the wall. Towards the back of the auditorium wall will be covered with an absorptive material that will absorb the sound. the stage is right under the overhang with an opaque glass that encloses the stage but leaves the space open for access to the stairs. the slanted walls are kept the way it was and it transits to straight wall for reflecting the sound. The exterior geometry of the auditorium is an enclosed box. proposEd MatErials
name 1000HZ nrCReflective walls and ceiling: wood .10 .10Absorptivewall: Sonex Valueline Foam 1.21
Process Sketches
Existing Condition Ray Diagram
Plan of structures: truss and 2’x 2’ wood panels. ray diagram for the plan
Plan and Ray Diagram
Proposed: sections and Ray Diagram
15/16"
1-11/16"
9/16"
1/4"
ARMSTRONG
PRELUDE 15/16"
EXPOSED GRID
METALWORKS VECTOR
PANELMETALWORKS
VECTOR PANEL
DetailsDetail Connections
Materials
absorptive Reflective
Calculations
S AFLOOR
Concrete 1067 0.02 21.34Steel 268 0.1 26.8
178 0.1 17.8
SEATING In/Outdoor Carpet Mats 310 0.2 62
SIDEWALLSReflective Panels 298 0.1 29.8
29.8532 0.1 53.2
53.2
BACKWALLAbsorptive Panels 565 1.02 576.3Absorptive Panels 285 1.02 290.7
CEILINGReflective Panels 2113 0.1 211.3
FRONT WALLOpaque Glass 167 0.1 16.7
AIRVolume parts 20340
3877(2)3029(2)
Total Volume 3415234.152 0.9 30.74
TOTAL 1419.68 sabins
RT = .05 (VOLUME) 0.05 34152 = 1.202 seconds A +.9V 1419.68
532 sq ft
11 sq ft1067 sq ft
268 sq ft
298 sq ft
268 sq ft
298 sq ft
565 sq ft
285 sq ft
268 sq ft
FLOOR
SIDEWALLS
BACKWALL
CEILING
Credit PageLizhu Chen -----------------------------------> Sketches, booklet layout, ray diagrams, editing CaD drawings
George Gizas -----------------------------------> Sketches, 3D model
Ketsia Joseph -----------------------------------> Sketches, section drawings, reflective material research
Marufa Mannan -----------------------------------> Sketches, absorptive material research
Caroll Patino -----------------------------------> Sketches, calculations
Credits