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Amararaja Growth Corridor, Chittoor

Amararaja Group of Companies proposed to construct a large Industrial Hub at Mordhanpalli in Chittoor District of Andhra Pradesh on the Chennai-Bangalore NH (old Madras Corridor). The proposed hub is planned in an area of about 510 acres and the master plan prepared in this regard has factory zones, residential zones, IT zones etc. The total extent of the land is 510acres & the development is planned in a phase wise manner.

The battery plant occupies 75 acres in the complex. It comprises of four main factories, MVRLA, ABD, TUBULAR and PLASTIC PLANT which will produce industrial batteries. The factory buildings are oriented in the north south direction. A complex network of services and utilities are required to support the production area.

Lighting Effects
Daylight is harnessed through sky light roofing to the fullest potential for the indoor working during day time to the factory level day lighting. Poly carbonate single wall sheets are planned horizontally on the peripheral wall sheeting above 6m level and sky lighting 5 per cent on roof area. Skylights provisions are endowing with polycarbonate sheets at 5 per cent of roof and wall lights in wall area to increase natural lighting. Roof monitor is provided on roof for all buildings.

Aesthetics and Safety
Two coats of oil paint zinc chromate (anti-corrosive) primer and two coats of synthetic enamel oil paint on all built up sections. Canopy with projection of 3000mm on either side to avoid rainwater coming in doors. Stub post of 450mm height from roof level is considered on roof to hold fall protection. Platform for exhaust fan / AHU is provided.

The building is provided with trapezoidal wall cladding which makes its appearance aesthetically appealing enough from all the sides. The roof area is fitted with solar panels currently in MVRLA plant and ABD plant which produces 13.2 and 13.1 megawatts electricity respectively.

The factories are well ventilated with windows at two levels. The first level is below (2.4m) & at second level is at 4.2m with louvers for ventilation throughout the plant. This design is provided for better comfort for the persons working inside the plant.

Structural Aspects
All buildings are designed as per IS 456: 2000 & IS 800: 2007 codes. All the live, dead and wind loads are taken as per IS 875 – Part 1,2 & 3 and seismic loads as per IS 1893 Standards.

Structural members comprise of RCC column with steel roofing members. RCC frame includes the isolated open foundation, plinth, lintel beam, columns, column bracket and crane gantry. Isolated open foundation implemented based on the higher safe bearing capacity. Steel frame includes the rigid castellated portal frames, Jack beam, Columns, wind columns along edge bay.

Roof framings are designed using conventional method as A – type and mono-slope. Castellated frames are formed from readily available I -Section and it is used to reduce weight and to attain required design depth. Jack beams are designed in such a way to support the castellated frames and to get maximum internal free space. Secondary structural framing includes purlins, girts, eave struts, wind bracing, flange bracing, base angles, clips and other miscellaneous structural parts. All purlin and girts are cold form members. Suitable wind bracing and sag rod are considered at time of design to grant the structural stability.

All buildings are covered with Lloyds sandwich panel of 30mm thick to offer a rapid coverage and swift weatherproof building envelope to give a high-performance building which will maximize the service life and reduce maintenance costs.

Longitudinal connecting beams and necessary pipe rack supporting arrangements are provided as required in building. Gutters and downspouts are adequately designed for all buildings to deliver an effective roof drainage system. All rain water header pipes encompass FRP coating and are made of PVC Pipe. The foundation anchor bolts and connection bolts are designed for a grade 8.8 and 10.9 respectively as per IS standards.

All buildings are designed as per IS 456: 2000 & IS 800: 2007 codes. All the live, dead and wind loads are taken as per IS 875 – Part 1, 2 & 3 and seismic loads as per IS 1893 Standards. Structural members comprise of RCC column with steel roofing members. RCC frame includes the isolated open foundation, plinth, lintel beam, columns, column bracket and crane gantry. Isolated open foundation implemented based on the higher safe bearing capacity. Steel frame includes the rigid castellated portal frames, jack beam, columns, wind columns along edge bay. Roof framings are designed using conventional method as A-type and mono-slope. Castellated frames are formed from readily available I-Section and it is used to reduce weight and to attain required design depth. Jack beams are designed in such a way to support the castellated frames and to get maximum internal free space.

C.N. SRINIVASAN, MD,
C.R. Narayana Rao (Consultants) Pvt. Ltd.

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