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Tata Structura steel hollow sections gaining predominance in FOBs

Background

The Western Line of the Mumbai Suburban Railway is a public transit system serving Mumbai Metropolitan Region, Maharashtra. It consists of 36 railway stations and is operated by the Western Railways. In the last few years, Western Railways has been offering its commuters more and more Foot over Bridges (FOB) for their safer and easier movement. The authorities have added more than 25 foot over bridges in last seven years. Tata Structura has forayed into the construction of these FOBs for Western Railways on its suburban line.

Objectives

The objective of Western Railways has been to construct robust Foot over Bridges that facilitate smooth movement of commuters and reduce trespassing on the railway tracks. Therefore, a lot of emphasis has been laid on selecting good quality construction material, especially steel hollow sections that form the core of these structures. Tata Structura steel hollow sections have been used because of the following advantages -

• High torsional rigidity and compressive strength
• Smooth and uniform profile of the sections to minimize corrosion and facilitate onsite fabrication
• Enhances the aesthetics of structures
• Excellent distribution of material around the axis for increased strength
• Higher strength to weight ratio makes it cost-effective

Planning and Execution

Tata Structura steel hollow sections were used widely in the construction of Western Railways' FOBs. There were various rounds of technical engagements conducted with the fabricators before the final installation and commissioning of three FOB's at Malad, Kandivali and Goregaon stations on the Western line of the suburban section of Western Railways.

Outcome

Mumbai Rail Vikas Corporation (MRVC) is coming up with 12 new Foot Over Bridges in Mumbai’s suburban regions (including Western and Central). These new FOBs are under development and are being adopted to use steel hollow sections of 310 MPA yield strength.

India's first ever mobility hub

Background

Mobility Hubs are an emerging concept in the Indian transport sector. Vytila Mobility Hub is one such integrated transit terminal in the city of Kochi, India. It acts as a converging point of various forms of public transportation, bringing down the city's traffic congestion. KITCO has been the implementing agency of this Rs.383 crore project, Phase-1 of which is already completed. On completion, the Mobility Hub is planned to have 124 bus bays and basement parking capacity for 775 cars and 1,500 two wheelers, in addition to shopping, entertainment and hospitality arenas. Tata Structura steel hollow sections have been used extensively in the construction of the Vytila Mobility Hub structure.

Planning and Execution

The Vytila Mobility Hub project started with extensive pre-feasibility study that included traffic surveys and detailed analysis of various possible locations for the hub. For Detailed Project Report (DPR), KITCO, the commissioning agency, conducted various surveys, prepared the master plan, architectural design and detailed cost estimates. Viability study through secondary market surveys was also conducted, in addition to analysis of ratios.

Outcome

Around 120 MT of Tata Structura Steel hollow sections were used in the construction of the Vytila Mobility Hub. The Hub comprises a mega shopping mall, food courts, cultural center and health club, a hotel, a 50 m swimming pool, a water front, parks, walk ways, and a boat jetty spread across a total buildup area of 13,70,000 sq. ft.