The CCR Centre, the headquarters building, won the Federation Internationale due Beton (fib) award in 1994. The square shaped building is lifted above the ground and floats on four principal core shafts resting on deep well foundations that leaves the entrance unobstructed. Each pillar is designed to carry a maximum load of 5000 t and supports an inverted four-sided hollow pyramid on which rise four superstructures – each a 21.6m square, overlapping one another by a quarter of its length. Post-tensioned by a maze of cables, each pyramid base cantilevers out by 10 m, supporting its own weight as also that of the upper floors. Each floor is made up of precast concrete waffle slabs offering maximum flexibility.
Back To Greening
The AR Centre or the Engineering Design and Research Centre (EDRC), also known as the Tree of Knowledge, is a triangular structure, rising like branches of a tree and designed as two symmetrical wings on either side of a service core. On a built-up area of 8686 sq.m., the floors seem to rotate at consecutive levels to form landscaped terraces, creating gardens in the sky. The geometry and dimensions of the floor plan facilitate adequate light to reach the inner most recesses. All the architectural forms are astutely blended into the structure, lending the building it uniqueness.
The AR Centre won the 2002 Federation Internationale du Beton (FIB) award for Outstanding Concrete Structure and the LEED Silver rating by the US Green Building Council in the Existing Building category for design, construction and operation of Green Buildings. It is the second building in India and the second one in Chennai to have received this rating under the LEED EB category.
Green Initiatives
The Convention Centre is a multi-purpose complex that won the ICI-McBauchemie Award from the Indian Concrete Institute in 1997. A unique element is the conical roof, comprising truncated cone segments, finished with curved terracotta tiles. Landscaping with water bodies and fountains along the road that runs around the building adds to the aesthetics of the entire complex. It houses the VIP & employee dining halls, convention and business development centres and can host training programmes for close to 800 employees.
Built on a 1.5 lakh sq.ft. area, the Technology Centre II (TCII) building is a state-of-the-art structure with a unique design of expanding floor plates. Organized with a central core, the plan provides for large column-free office space. All the common facilities are organized on the ground floor, the first to fourth floors detailed for housing modular office facilities and the terrace houses the service backbone facilities like the air-cooled screw type chiller plant, lift machine room, pump rooms and water tank. The innovative and exclusive structural system comprises post-tensioned expanded polystyrene embedded flat slabs for the main office areas, supported by a central reinforced concrete core and peripheral reinforced concrete shear walls/columns resting on a pile foundation. The building is designed for seismic zone-III with ductile detailing as per the Indian codes of practice and other relevant Indian standards. The building is equipped with automatic analogue addressable fire detection and alarm system and 100% power back-up.
Green Efficiency
The Technology Centre III (TC III) represents another innovative and pioneering technology in construction and the recipient of a Silver Rating by the Indian Green Building Council for new construction. TC III also won the 'Ultratech Award for Outstanding Concrete Structure of Tamil Nadu 2011'.
Green Highlights
The Henning Holck-Larsen Centre (HHLC) is our corporate museum dedicated to the memory of one of L&T's founding fathers and Chairman Emeritus, Henning Holck-Larsen and built to commemorate 60 years of L&T Construction. The two-storied, 13,000 sq. feet elliptical structure has been designed as an oval glass enclosure. It has a 6.1m tall spider glazing system with 12mm thick toughened glass all around. The huge oval concrete roof has been treated as a penthouse with a terrace garden, a lobby and a well-appointed auditorium. Apart from a freestanding staircase, another unique feature of the HHLC is its landscape with two large water bodies replete with cascades and parasol-shaped structures that also act as an effective rainwater harvesting method. The Corporate museum won the PRSI Golden Jubilee Award in 2008 for 'Live Interactive and Innovative PR Initiative' from the Public Relations Society of India (PRSI), New Delhi.
3 battery operated vehicles are used inside the campus that run an average of 25 km per day.
Environmental gains: