BUILDING SERVICESRangashankara: A Case Study on Acoustics

ANANYA RAI 1RV06AT009 . ASHA N M 1RV06AT0156th sem B. Arch., R V School of Architecture

CONTENTS Auditorium- Name/Location/Site Details/Usage

Analysis- Size and Shape of the Auditorium

- Parts of the Auditorium (Lobby/green room etc)- Balcony details (if any)

Areas- Foyer = 20% of Seating Area - Lobby=10% of seating area- Area of stage = 40% of Seating Area

Viewing Angles - Of stage from front row- Of stage from back row

AuditoriumRanga Shankara, BangaloreClient : Sanket TrustArchitect: Mistry ArchitectsBuilt up area : 12, 000 sq.ft.Year of completion : 2004Contractor:Civil : Shakti constructionsConsultants:Civil : Sterling engineeringAcoustic : sound designRanga Shankara" a unique 300 seater theatre space in Bangalore with a thrust and revolving stage, the first of its kind in south India designed to nourish the dream of Shankar Nag in creating a unifying language, a forum for creating sensitive experience. It is a platform for contemporary theatre - a frame. The idea was to create a language that gives a sense of exploration & discovery as you move around the building. The idea was a building that man wants to relate to.

AnalysisThe auditorium has a thrust stage with a floor area of 1750 sq ft., with four green rooms and the very best of sound, lighting, and technical facilities. The auditorium is air conditioned and seats 320.

Our thrust stage is the first and the only one of its kind in Bangalore. The stage and the auditorium arrange the acoustics in a way that artificial amplification becomes unnecessary.

Sound ReflectorsPanels on the roof that help reflect the sound coming from the stage towards the audience.

Wall materialBrick facing that avoids any sort of echo from escaping acting as a good sound absorbent.

The stage is wooden – another good acoustic material with positive sound qualities enabling better hearing conditions wi thin the auditorium.

The steps leading to the various aisles are made of stone.

The seats have soft brown cushioning that again act as sound absorbent materials.

Numerical data for the auditorium Stage area = 1750 sq ft Seating area = 4605 sq ft Foyer = 20% of Seating Area Lobby=10% of seating area

Area of stage = 40% of Seating AreaThis is what is recommended by the IS code and satisfied by the auditorium of Rangashankara.

Viewing Angles Of stage from front row – 0 degreesOf stage from back row – 36 degrees

The Lobby area

Roofing detail