Cantilevers

(L&T) Engineering Design and research centre Construction, Chennai

K. S. Ranganath

This is the headquarters of Larsen & Toubro's (L&T) Engineering Construction and Contracts (ECC) Division

•primary construction : reinforced concrete

•Tree dotting the site

•Circular trunk like column

•Rotated cantilever floors

•Sets of four storey ‘petals’

•Column free interior

• The working spaces: distributed into two symmetrical wings

• Central: service and circulation core.• The wings: supported at ground level by a 4 m diameter

column• Branches out to support an external periphery of

floating columns. • Curved grid beams between peripheral floating columns • 1.6 m central solid stem form the structural system of

the floors above.