Detailed Engineering Services for P. V. Narasimha Rao Elevated Expressway

Hyderabad, India
Cities & Territorial Development

Project Description

The P. V. Narasimha Rao elevated expressway of 11.67 km length and a carriageway width of 17.2 m, which connects the central business district of the city with NH-7, was the longest in India at the time of its construction.

The project comprises (a) Construction of a 4 lane divided carriageway with a median of 1.2 m along with main/intermediate ramps and underpasses (b) Construction of a Trumpet interchange on NH-7 for the approach road to the International Airport and (c) Strengthening, widening of the Inner Ring Road from 4 lane to 6 lane.

Simply supported post-tensioned box girders of 35 m spans were used except where otherwise needed due to obligatory conditions. Expansion joints were provided at 140 m intervals. Segmental construction was adopted with the segments being match cast in yards, transported, assembled on a launching girder and stressed for joining together into spans.

Assystem Stup was responsible for the preparation of complete general arrangement drawings, basic design criteria for civil works, detailed design, construction drawings and working drawings for electrification and illumination, scheme for bearing and expansion joints, and submission of as-built drawings.

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