Make in India steel bridge launches over railways tracks for bullet train project
Steel

Make in India steel bridge launches over railways tracks for bullet train project

The first steel bridge of 100 m length, launched over the Vadodara-Ahmedabad main line of Indian Railways, near Nadiad in Gujarat for Bullet Train Project- Mumbai- Ahmedabad Bullet Train Corridor.

Along with Japanese know-how, India is increasingly utilising its indigenous technical and material capabilities to build the infrastructure under the "Make-in-India" vision. And, this Steel bridge for the Bullet Train Project is one such example.

This 1486 MT steel bridge was fabricated at the workshop in the Bhuj district of Gujarat, which is almost 310 km away from the location of the bridge launching site, and was transported on trailers to the site for installation.

At the site, the steel bridge was assembled at a height of 15.5 m from the ground on temporary trestles. Thereafter, the launching nose of 63 m in length and approx. 430 MT weight was assembled with the main bridge assembly. The steel bridge was pulled with the automatic mechanism of two jacks, each with a capacity of 180 MT using High Tension strands. The bridge was pulled in complete traffic and power blocks of Indian railway lines with meticulous planning and precision.

Technical points: Length of the main bridge: 100 m Weight of the main bridge: 1486 MT Launching nose length: 63 m Launching nose weight: 430 MT

Each production batch of steel was tested by Ultrasonic Testing (UT) at the manufacturer?s premises. The making of steel bridges undergoes high-tech and precise operations of cutting, drilling, welding and painting as per the design drawings prepared by Japanese engineer. The welders and supervisors were certified by International Welding Experts. The welding process is monitored by Japanese International Welding Experts (IWE) stationed at each workshop. Fabricated structure undergoes Check Assembly process and then follows the sophisticated 5- layered painting of the steel structure.

The painting technique adopted for the steel girders is first-of-its-kind in India. It conforms to C-5 Painting system of Japan Road Association's Handbook for Corrosion Protection of Steel Road Bridges?. The jointing of steel members is done using Tor Shear Type High Strength Bolts (TTHSB), which are being used first time for any railway projects in India.

This is the second out of the 28 steel bridges completed for the corridor. The first steel bridge was launched across National Highway 53, Surat in Gujarat.

Approximately 70,000 MT of specified steel is used in making of these steel bridges. The length of these steel bridge span varies from 60 m?simply supported? to 130 + 100 m "continuous span".

Steel bridges are most suitable to cross Highways, Expressways and Railways lines, unlike pre-stressed concrete bridges, spanning 40 to 45 meters, which are suitable for most sections, including river bridges. India has the expertise of fabricating steel bridges for heavy haul and semi high-speed trains, which run between 100 and 160 kmph. Now, the same expertise in fabrication of steel girders will be implemented on MAHSR corridor too which will have a staggering operational speed of 320 kmph.

The first steel bridge of 100 m length, launched over the Vadodara-Ahmedabad main line of Indian Railways, near Nadiad in Gujarat for Bullet Train Project- Mumbai- Ahmedabad Bullet Train Corridor. Along with Japanese know-how, India is increasingly utilising its indigenous technical and material capabilities to build the infrastructure under the Make-in-India vision. And, this Steel bridge for the Bullet Train Project is one such example. This 1486 MT steel bridge was fabricated at the workshop in the Bhuj district of Gujarat, which is almost 310 km away from the location of the bridge launching site, and was transported on trailers to the site for installation. At the site, the steel bridge was assembled at a height of 15.5 m from the ground on temporary trestles. Thereafter, the launching nose of 63 m in length and approx. 430 MT weight was assembled with the main bridge assembly. The steel bridge was pulled with the automatic mechanism of two jacks, each with a capacity of 180 MT using High Tension strands. The bridge was pulled in complete traffic and power blocks of Indian railway lines with meticulous planning and precision. Technical points: Length of the main bridge: 100 m Weight of the main bridge: 1486 MT Launching nose length: 63 m Launching nose weight: 430 MT Each production batch of steel was tested by Ultrasonic Testing (UT) at the manufacturer?s premises. The making of steel bridges undergoes high-tech and precise operations of cutting, drilling, welding and painting as per the design drawings prepared by Japanese engineer. The welders and supervisors were certified by International Welding Experts. The welding process is monitored by Japanese International Welding Experts (IWE) stationed at each workshop. Fabricated structure undergoes Check Assembly process and then follows the sophisticated 5- layered painting of the steel structure. The painting technique adopted for the steel girders is first-of-its-kind in India. It conforms to C-5 Painting system of Japan Road Association's Handbook for Corrosion Protection of Steel Road Bridges?. The jointing of steel members is done using Tor Shear Type High Strength Bolts (TTHSB), which are being used first time for any railway projects in India. This is the second out of the 28 steel bridges completed for the corridor. The first steel bridge was launched across National Highway 53, Surat in Gujarat. Approximately 70,000 MT of specified steel is used in making of these steel bridges. The length of these steel bridge span varies from 60 m?simply supported? to 130 + 100 m continuous span. Steel bridges are most suitable to cross Highways, Expressways and Railways lines, unlike pre-stressed concrete bridges, spanning 40 to 45 meters, which are suitable for most sections, including river bridges. India has the expertise of fabricating steel bridges for heavy haul and semi high-speed trains, which run between 100 and 160 kmph. Now, the same expertise in fabrication of steel girders will be implemented on MAHSR corridor too which will have a staggering operational speed of 320 kmph.

Next Story
Infrastructure Urban

CONCOR Launches Double-stack Service Between NCR and Varnama

State-run Container Corporation of India (CONCOR) has launched double-stack container train services between the National Capital Region (NCR) and Varnama near Baroda. This initiative aims to facilitate customers at Nhava Sheva near Mumbai, home to Jawaharlal Nehru Port (J N Port). On December 21, the first double-stack container train from Khatuwas and Dadri in NCR reached CONCOR’s Gati Shakti Multimodal Cargo Terminal (GCT) at Varnama, situated along the Western Dedicated Freight Corridor (WDFC). The train carried export cargo destined for J N Port, according to a statement from the state..

Next Story
Infrastructure Transport

Less than 10% of Rs 40 Billion State-aid for Shipbuilding Utilised

A government-sanctioned financial assistance program worth Rs 40 billion, intended to support local shipbuilders over a decade starting in April 2016, has seen minimal utilisation, with only Rs 3.85 billion—less than 10 per cent of the total fund—disbursed thus far. With 15 months remaining before the scheme concludes, its uptake has been limited. The financial aid applies to shipbuilding contracts signed between April 1, 2016, and March 31, 2026. According to a written response provided by Union Minister of Ports, Shipping, and Waterways Sarbananda Sonowal to the Rajya Sabha on December ..

Next Story
Infrastructure Transport

Civil Aviation Minister Opens New ATC Tower at Indore Airport

The Minister for Civil Aviation, Ram Mohan Naidu Kinjarapu, inaugurated the new Air Traffic Control (ATC) Tower-cum-technical block at Devi Ahilyabai Holkar International Airport in Indore, Madhya Pradesh. During the inauguration, the minister toured the facility, where ATC experts explained various technical aspects of tracking and coordinating flights from the newly constructed tower. In addition to the ATC tower, the airport has also introduced a zero-waste plant. The union minister confirmed that this initiative aligns with the government’s commitment to sustainability. Minister Ki..

Hi There!

"Now get regular updates from CW Magazine on WhatsApp!

Join the CW WhatsApp channel for the latest news, industry events, expert insights, and project updates from the construction and infrastructure industry.

Click the link below to join"

+91 81086 03000