howrah bridge construction

Two main expansion joints are placed at the interfaces in the middle of the suspended span and the cantilever arms.Eight articulation joints exist at the cantilever arms and suspended portions. The bridge deck measures 71ft in width and features two footpaths of 15ft on either side.The super-structure is built up with riveted sections made of a combination of high tensile and mild steel.

The construction was supervised by the Howrah Bridge Commissioners under the guidance of … The bridge deck descends from panel points placed in the middle of the towers. Not even the registers of the Port Commissioners dared log an entry.For a technological marvel that had given rise to much discussion in technology circles the world over, ever since the designs—for what was then to be the longest cantilever bridge—were being worked on, the eerie silence upon completion was a testament to the terrifying oppressiveness of war. By the time the bridge was being built it had a fully-fledged research and control laboratory that was formally inaugurated on September 14, 1937 by Chairman, Sir Nowroji Saklatvala, and Sir M Visvesvaraya.Such guiding visionaries were inspiration enough but the department received further impetus when the company was tasked with making a suitable low-alloy structural steel for the New Howrah Bridge Tata Steel records show that the final specification called for the use of high-tensile structural steel having a specified tensile strength between 5.82 and 6.77 metric tons per square millimeter (37 and 43 tons per square inch—1 kilogram is equal to 0.001 metric tonnes, or 0.00110231 tons) and it had to launch a comprehensive R&D initiative to produce steel that would comply with the specifications.

In those dark days of World War II, there was no opportunity to celebrate the marvellous piece of engineering; a bridge of steel made in India; almost the entire steel produced by Tata Steel and fabricated by Indian engineering firms and built by Indians to a sophisticated international design.For all purposes, 'Make In India' was born in that era.It was the amazing foresight, visionary investment in research and development by the early leaders in Tata Steel; India’s technical competence and the confidence in the country’s ability to deliver the fabulous cantilever structure that Tata Steel celebrates today as it rededicates itself to the task of 21st century nation-building.Three young lads, Sangram, Tapas and Bishu, sure-footed as arboreals, traverse the majestic latticed expanse of over 457.50 metres. More than 75 years ago, on February 3, 1943, the Howrah Bridge was opened to the public. Another feature which sets it apart is the fact that the bridge was formed entirely by riveting, and does not have any nuts or bolts. I loved the drive on the bridge. All Rights Reserved. They are checking the pulse of this lifeline to the city of Kolkata, its iconic Howrah Bridge. The project is located in Kolkata, West Bengal, India. Howrah Bridge renamed as Rabindra Setu Bridge in 1965 is a pioneering marvel in bridge construction in India and cost around INR 25 million at that time. This son of monoliths was used in supporting the main towers of Howrah Bridge at Calcutta. It was all taken in good spirit and never was a day lost to labour trouble of which the city was beginning to get a taste. “The name Tata Iron and Steel Co is embossed on the steel structural”, he says.© 2019-2021 Tata Sons Private Limited. Nevertheless, the design specification was effectively drawn up to cover the use of both ordinary structural steel to BSS 153 and high-tensile structural steel having an ultimate tensile strength of from 37 tons to 43 tons per square inch, “a yield-point of not less than 23 tons per square inch, and an elongation of not less than 18 per cent”, said Maurice and Bateson. All the steel work, amounting to some 3,400 tons, was manufactured by the Tata Iron and Steel Company”.The fabricators were Braithwaite, Burn & Jessop Construction Company (BBJ) and the consulting engineers, Messrs Rendel, Palmer and Tritton, of Westminster.“James Meadows Rendel, the 6th President of the Institution of Civil Engineers (ICE) 1851–1853 formed Rendel & Partners in 1838 in London, U.K. Even during this period, Tata Steel had to sell steel to support the war effort; steel was sold at controlled prices! Previously, a pontoon bridge was built by Sir Bradford Leslie in 1874. Ab August 1879 soll die Brücke sogar elektrisch beleuchtet worden sein.

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