Jeewan bharti1

A PRESENTATION ON LIC BUILDING BY CHARLES CORREA

1. L.I.C. JEEWAN BHARTI OUTER CIRCLE , CONNAUGHT PLACE NEW DELHI Architect Charles Marks Correa Structural Consultant Mahendra Raj

2. L.I.C. JEEWAN BHARTI 1979-1985 COMMERCIAL BUILDING TWO 13 STOREYED TOWERS SPRINGING OUT OF THREE LEVEL BASE TWO PARKING BASEMENTS A TERRACED PIAZZA AN OPEN GRID PARASOL RESTING ON 45 METRE HIGH FREE STANDING COLUMN AT THE ROOF SALIENT FEATURES OVERVIEW This office complex for the Life Insurance Corporation of India (LIC) is situated on the outer road of Connaught Circle. It acts as a pivot between the colonnades of Connaught Place and the new generation of high- rise towers that now surround it. The building is both proscenium and backdrop : faceted glass surfaces reflect the buildings and trees around Connaught Place, and beyond which the new high- rise imagery of Delhi can be glimpsed

3. PLANNING The two lower levels of the complex consist of shopping decks and restaurants. The ground coverage of the building is 6200 square metres . The upper levels of offices are located in two separate wings, generating a total built-up area of 63,000 square metres . Connecting the two wings , is a great pergola , 98 metres long , supported at either end by masonry piers and in the middle by a single column .

4. NORTH OUTER RING ROAD ,C.P. PEDESTRIAN VEHICULAR SITE PLAN

5. 2250 MM DIA FREE STANDING MASONRY COLUMN HOLLOW MASONRY TRAINGULAR COLUMN PUBLIC AREAS +475 RECEPTION , LIFT LOBBY +4100 PUBIC OFFICES +7600 RESTAURANTS AND COMMERCIAL FLOOR 2 PARKING BASEMENTS OFFICE FLOORS +7600 +47050 CORE LIFT AND STAIRCASE FIRE STAIRCASE SERVICE SHAFT WIND TOWER BUILDING ELEMENTS

6. STRUCTURAL GRID 8200 X 8200 EXPANSION JOINT 125 MM BASEMENT -3075

7. CORE II CORE I

8. COLUMN SCHEDULE 600 MM DIA 800 MM DIA 1150 MM DIA 1000 X 1250 Sqmm 1000 X 2250 Sqmm

9. The red sand stone of the piers wraps the building culminating in the twin elevated towers. On the side of the building ,the windows are deeply recessed into the masonary so as to protect them fron heat and avoid heavy wind loads.

10. AT +4100 AT +475 AT +7200

11. Drop 50 mm Drop 200 mm Basement height 3200 MM Floor to Floor Height 3600 MM COLUMN HEAD FLAT SLAB COLUMN HEAD AND DROP PANNEL INCREASES SHEAR STRENGHT OF THE SLAB AND REDUCES THE MOMENT IN THE SLAB BY REDUCING THE CLEAR OR EFFECTIVE SPAN DROP PANNEL STIFFEN THE SLAB THUS REDUCES DEFLECTION

12. The building has a no. of other important elements that contributes to the aesthetic beauty of the building. These are : Space Frame that connects both the blocks as one unit. Stack Panel Glazing that is entirely used for the façade. Sandstone Wall Cladding that beautifies the entire building. AESTHETIC FEATURES

13. SPACE FRAME It is a truss like , lightweight, rigid structure constructed from interlocking struts in a geometric pattern. Space frames can be used to span large areas with few interior supports. A space frame is strong because of : It is composed of planar substructures . The plane are channeled through the horizontal bars and the shear forces are supported by the diagonals. The inherent rigidity of the triangle. The bending moment is transmittted as tension and compression loads along the length of each strut. A 98 meters long pergola connects the two buildings.

14. Length of the member in space frame =1500mm Since, h= ½. a . 0.414 = 0.707a = 0.707 X 1500mm ( a=1500mm ) = 1060mm Dimensions Member Length = 1500mm Height of the Space Frame =1060mm Angle formed = 60 degree Type of side surfaces equilateral triangles Number of Spaces 4th Number of corners 5 Number of edges 8

15. STACKPANEL GLAZING The term ‘structural glass’ is a term used to describe a large number of frameless glass assemblies where the glass itself is taking an element of the structural loads that are applied to the elevation or surface. The glazing used in this building is called stackpanel glazing. JEEVAN BHARTI BHAVAN HAS GLASS AS A STRUCTURE IN IT TO CREATE THE ELEVATION OF STRUCTURAL GLASS SUPPORTED BY MINIMAL STEEL OR LAMINATED GLASS BEAMS AND FINS.

16. FEATURES OF THE GLAZING: Zone drainage - each pane acts as an individual self draining unit Side load Stack joint Fully drained and pressure equalised Lifting rail The system accommodates glass or infill panels up to 32mm Complies with thermal regulations Horizontal cap with vertical silicone joint Vertical cap with horizontal silicone joint mullion , transom and face cap options with 64mm sightlines Seismic movement capability.

17. SANDSTONE WALL CLADDING A no. of office buildings in Delhi are seen cladded with RED SAND STONE . Red sand stone cladding are very common in Delhi as a building material as it is cheap and economic . Renowned buildings built with red sand stone cladding are STC BUILDING, JEEVAN BHARTI BHAVAN etc. MANY RENOWNED ARCHITECTS LIKE CHARLES CHORREA , RAJ REWAL USED RED SAND STONE AS A CLADDING MATERIAL IN THEIR BUILDING. JEEVAN BHARTI BHAVAN IN CONNAUGHT PLACE IS ONE OF THOSE BUILDINGS. CLADDING RED SANDSTONE is used in the most part of the building apart from structural glass glazing. DIMENSIONS of the SANDSTONE used: 2’’x2’’x1 inch 2.5’’x1.2’’x1 inch FIXING OF CLADDING The cladding of the building is primarily done with red sandstone. It is fixed with mortar and then screw bolted at the center for the protection during earthquakes.

18. THANK YOU