The bridge consists of twin continuous concrete box girder bridge sections for traffic in each direction. Each bridge section, except at the cable-stayed portion, is supported on piers typically spaced at 50 metres. Each section is meant for four lanes of traffic, complete with concrete barriers and service side-walks on one side. The bridge alignment is defined with vertical and horizontal curves. The bridge layout is categorized into three different parts:
Part 1 - The north-end approach structure with Pre-Cast (PC) segmental construction.
Part 2 - The Cable-Stayed Bridge at Bandra channel is with 50m -250m-250m-50m span arrangement and the Cable-Stayed Bridge at Worli channel is with 50m-50m-150m-50m-50m span arrangement.
Part 3 - The south end approach structure with Pre-Cast segmental construction.
[edit] Part - I North End Approach Structure
The bridge is arranged in units of typically six continuous spans of 50 metres each. Expansion joints are provided at each end of the units. The superstructure and substructure are designed in accordance with IRC codes. Specifications conform to the IRC standard with supplementary specifications covering special items. The foundation consists of 1.5 metres diameter drilled piles (4 nos. for each pier) with pile caps. Bridge bearings are of Disc Type.
The bridge has been built utilising the concept of Pre-Cast, post-tensioned, segmental concrete box girder sections. An overhead gantry crane with self-launching capability is custom built by the company to lay the superstructure of the precast segments. The Pre-Cast segments are joined together using high strength epoxy glue with nominal pre-stressing initially. The end segments adjacent to the pier are short segments "cast-in-situ joints". Geometrical adjustments of the span are made before primary continuous tendons are stressed.
Segment types are further defined by the changes in the web thickness and type of diaphragms cast in cell. The segment weights vary from 110 tonnes to 140 tonnes per segment. The segment length varies from 3000 mm to 3200 mm. Deck post tensioning is performed at the completion of the erection of each 50m bridge span.
Part 1 - The north-end approach structure with Pre-Cast (PC) segmental construction.
Part 2 - The Cable-Stayed Bridge at Bandra channel is with 50m -250m-250m-50m span arrangement and the Cable-Stayed Bridge at Worli channel is with 50m-50m-150m-50m-50m span arrangement.
Part 3 - The south end approach structure with Pre-Cast segmental construction.
[edit] Part - I North End Approach Structure
The bridge is arranged in units of typically six continuous spans of 50 metres each. Expansion joints are provided at each end of the units. The superstructure and substructure are designed in accordance with IRC codes. Specifications conform to the IRC standard with supplementary specifications covering special items. The foundation consists of 1.5 metres diameter drilled piles (4 nos. for each pier) with pile caps. Bridge bearings are of Disc Type.
The bridge has been built utilising the concept of Pre-Cast, post-tensioned, segmental concrete box girder sections. An overhead gantry crane with self-launching capability is custom built by the company to lay the superstructure of the precast segments. The Pre-Cast segments are joined together using high strength epoxy glue with nominal pre-stressing initially. The end segments adjacent to the pier are short segments "cast-in-situ joints". Geometrical adjustments of the span are made before primary continuous tendons are stressed.
Segment types are further defined by the changes in the web thickness and type of diaphragms cast in cell. The segment weights vary from 110 tonnes to 140 tonnes per segment. The segment length varies from 3000 mm to 3200 mm. Deck post tensioning is performed at the completion of the erection of each 50m bridge span.
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