building services assignment

jahnavi kakulavaram
1RW17AT039
7B
R.V.C.A
 INTRODUCTION::
INTRODUCTION The auditorium was a unique project
where the primary design brief was that it
should have a “WOW” effect. Since the auditorium was for one of the premier ed-
ucational institutes of the country ideas that were not previously attempted for audi-
torium designing in India were explored. The task was made even more challenging
since this was supposed to be one of the largest auditoriums in the country and the
largest in South India, with about 2500 seats

info:
project info:
noise
Client & Location: BITS Pilani, Hyderabad Campus
levels
Completed in: 180 days in 2014
on
Capacity: Approx. 2500
site
Area: Approx. 1,75,000 sqft

Project Cost: Approx. 62 Crores

Architectural Firm: RMM Designs

Architect & Principal Consultant: Rahul Manohar

Other Consultants: Maple Consultants (MEP), EDA Consultancy Services (Structural Engineers)

Contractors for Structure: Shapoorji Pallonji Engineering & Construction

Interior Contractors: Centrix Projects

Stage Lighting & Equipment: Canara Lighting Industries Pvt Ltd

Audio-Video System: Actis Technologies Pvt Ltd

Chairs: Pen Workers

 project drawings

The Bits Pilani Auditorium has a thrust type stage architec-

ture with semi- circular seating for greater audience interaction.

part reflected ceiling plan

entire ceiling was envisaged as a double-layered ceiling with the tip up seating to maximize
innovative, lower open grid ceiling amalgamated with the darker space with seating arrang-
unobtrusive upper layer which catered to the acoustic and services ments aligning in alternate
requirements. Suspended ceiling clouds in an expanding geometri- rows to allow for unobstruct-
cal design further addressed the issue of acoustics which are crucial
ed view
for an auditorium. all the services utility end-points were housed
in the upper layer, we could design the lower layer as a decorative
ceiling with stunning aesthetics.
 Sound absorbing fabric wrapped
acoustic panels were used in Celtic
The seating capacity was split over 2 levels Innovative double layered false ceiling colors and arranged in a banner style
design to amalgamate the stunning aesthetics of the lower layer and services & to signify the college graduation
acoustical requirements of the upper, unobtrusive layer.

assumption:
the auditorium implements
structural a combination of concave
system shaped and stepped ceiling
of the
auditorium
systems that reflect the sound
is a com- back to the audience.
plex system
consisting
of columns,
assumption:possibility of flut-
beams, joists, ter echo near stage area as the
& bracing ceiling is parallel to the floor
lower open grid ceiling primary absorbtive ceiling of
reference image not
the actaul structural of suspended ceiling black colored modular tiles
model clouds for acoustic and
aesthetic purpose
lighting and stage equipement:
Multiple stage lighting and equipment solutions were implemented including a dedicated Light Bridge for
FOH Lighting, multiple overhead lighting options on motorized bars including Spots, Cyclorama lights,
Cool-lights and Tele-climbers. Main, mid and rear curtains were provided to enable multi-use of the stage
space. Above stage motorized utility bars give added flexibility for suspending scenery, banners, mics, and
other props. On-stage AV and power connectivity were provided through floor boxes for additional equip-
ment like laser lighting, fog machines, monitor speakers, prompter screens and microphones..

The illumination for the auditorium was

provided with a complicated mixture of
spotlights, ceiling mounted units and
on-stage lights. light bridge at the stage for illumination the arcs focus loudspeaker system used to proj-
ect sound to the back of the hall.
stage flooring:
the stage uses timber flooring to reduce the noise transmission to tolerable levels. An acoustic lay-
er is usually laid under the timber veneer flooring to absorb the sound waves to a certain degree
.the layer reduces vibrations of lower sound frequencies to prevent the vibration of slabs and walls
by lower sound frequencies.the depth of the floor slab and the perimeter of the floor affects the ab-
sorption of low frequency.this occurs because sound waves have the ability to travel through floors
and walls into adjacent spaces
carpet flooring:
carpet is an outstanding sound absorber which serves as an acoustical aid as well as a
floor cover. carpet absorbs air borne noise as efficiently as other specialised acoustical
materials. rubber underlay further improves absorbtion.carpet is also wrapped around
all the steps along the aisles of the auditorium to reduce the noise produced by the
footsteps of people walking up and down

material evaluation:

Material Photo NRC

Armstrong Soft Fibre

Optra Ceiling Tiles
0.9
15mm

anutone salon slats for 0.2

panelling
HVAC SYSTEM:
The basic principle of air conditioning is that it is an exchange of indoor and outdoor air,whereby it ex-
tracts heated indoor air and sends it outdoors and vice versa .The auditorium utilizes mechanical ventilla-
tion and air conditioning system
The College Auditorium was divided into six HVAC zones -the Back Rooms, Backstage, Front Rooms,
Main Lobby, Mechanical Room, and Stage.
CAV system was used to service the Stage area, as the occupancy in this area is greater, which will re-
quired constant ventilation and air circulation, and the heating or cooling temperature remains consis-
tent. The use of the CAV system will assure the best thermal comfort and efficient air changes for this
large space. The remainder of the building will be serviced with a VAV system to enable greater individual
control from space to space.

centralised ac system-schematic drawing

variable air volume system-schematic drawing
due to lack of adequate drawings and info the material and
hvac systems are a personal analysis and assumption of what
seems appropriate to the project