Example: An assembly hall having rectangular shape, has dimensions as 30 mx 20 mx 8 m. The area of different surfaces used with their absorption coefficient is shown in the table below. Work out the total absorption and time of reverberation time.

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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Eumple:
An assembly hall having rectangular shape, has dimensions as 30 mx 20 mx 8 m. The area of
different surfaces used with their absorption coefficient is shown in the table below. Work out
the total absorption and time of reverberation time.
Absorption unit
Absorption
S. No
Surface Materials
Area or No (m2)
in m2 -
Coefficient/m
Sabine(A)
Cement plaster
700
0.02
Concrete
600
0.03
Curtains
100
0.02
4.
Wooden seats
900
0.02
Persons
900
0.46
Total Absorption 'A'
2.
3.
1.
Transcribed Image Text:Eumple: An assembly hall having rectangular shape, has dimensions as 30 mx 20 mx 8 m. The area of different surfaces used with their absorption coefficient is shown in the table below. Work out the total absorption and time of reverberation time. Absorption unit Absorption S. No Surface Materials Area or No (m2) in m2 - Coefficient/m Sabine(A) Cement plaster 700 0.02 Concrete 600 0.03 Curtains 100 0.02 4. Wooden seats 900 0.02 Persons 900 0.46 Total Absorption 'A' 2. 3. 1.
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