Howrah Bridge, Kolkata When one thinks of Kolkata, the image of the Howrah bridge pops into one's head. You will rarely find a movie filmed in Kolkata without a flattering shot of the iconic structure in all its glory. The bridge connects the Western and Southern parts of Mumbai and has contributed to reducing the travel time from an hour to just 10-15 minutes. Today, the young trio is the unheralded hero of the bridge…. An iconic landmark of Kolkata, Howrah Bridge is a massive steel bridge constructed over the Hooghly River. How did Tata Steel manage to deliver to the required specifications? A cantilever bridge is a bridge built using cantilevers, structures that project horizontally into space, supported on only one end.For small footbridges, the cantilevers may be simple beams; however, large cantilever bridges designed to handle road or rail traffic use trusses built from structural steel, or box girders built from prestressed concrete. The Howler Bridge is a type of steel bridge called the cantilever system. The constriction cost of the bridge’s new structure was 25 million Indian rupees. Three young lads, Sangram, Tapas and Bishu, sure-footed as arboreals, traverse the majestic latticed expanse of over 457.50 metres. The Howrah Bridge is a classic example of a balanced cantilever bridge. Find here Steel Structure, suppliers, manufacturers, wholesalers, traders with Steel Structure prices for buying. The bridge’s length is 655.94m, and the total length is 705m, including the access road. It required 26,500 tons of steel, out of which 23,000 tons of high-tensile alloy steel, known as Tiscrom, were supplied by Tata Steel. Tata Steel is a leading global steel company with an annual production capacity of 33 MnTPA, How Tata Steel is regaining its place as India’s largest steel maker, They check the pulse of the city's lifeline, Sir Bradford's Pontoon Bridge, the precursor to the icon, During World War II, the bridge was believed to be a target. The structure that will pass over the railway tracks will be a look-alike of the famous Howrah Bridge." Popularly referred to as Rabindra Setu and even the gateway of Kolkata, this st... 20/2B, K.P. There were also the Nepalis, Gurkhas and even Pathans making valiant contributions. Howrah Bridge is a 705m-long abstraction of steel cantilevers, sweat and traffic fumes. WHAT ARE STEEL STRUCTURES ? Also known as Rabindra Setu, it connects Howrah and Kolkata. It is considered one of the longest cantilever bridges in the world. How Tata Steel’s IJmuiden emerged a great employer and neighbour over a 100 years. Evidence of this is to be had on Page 12, of the Engineer of January 7, 1938. Even during this period, Tata Steel had to sell steel to support the war effort; steel was sold at controlled prices! Constructed without nuts and bolts, the Howrah Bridge was formed by riveting the entire steel structure. 26,000 MT of steel work with Monolith piers having a Central Span of 1,500 feet with approximate truss height of 300 feet The bridge constructed for the purpose of providing passage over the obstacle. KOLKATA,WEST BENGAL/INDIA-MARCH 20 2018:At the enntrance to Howrah bridge a bus and other traffic converges to cross the busy structure that crosses t Women running water into a steel dish from a stand pipe at Norbulingka institute. List of relevant publications and sources such as journal articles, books and conference papers for the structure Howrah Bridge (1936-1943). Jamsetji, Dorabji and RD Tata defied sceptics to give India her first steel enterprise. 1943 ‘Calcutta’ was in the vortex of World War II and the Imperial Japanese Army Air Force was eyeing the looming silver structure. Constructed in 1941 over the river Hooghly, the bridge joins the twin cities of Howrah and Kolkata (Calcutta). The design of the bridge called for high tensile steel. The degree of spread of the steel under the rolls was different from the plain carbon steel. Read below excerpts from Howrah Bridge: An Icon in Steel, a coffee table book produced by Tata Steel on the occasion of the 75th  anniversary of the inauguration of the bridge in 2018. The Technology apart, the Howrah Bridge was built in an environment of religious bonhomie between Hindus, Muslims and Sikhs. Updated : Jan 4, 2018, 14.52 IST. Roy Lane, Sahid Nagar, Dhakuria, Kolkata 700031, (For more than one recipient, type addresses separated by commas). Times Internet Limited. The fabricators were Braithwaite, Burn & Jessop Construction Company (BBJ) and the consulting engineers, Messrs Rendel, Palmer and Tritton, of Westminster. The design of bridge has 39 spans of 125 m and a superstructure of composite welded steel truss and reinforced concrete. Tata Steel supplied this alloy steel. Structural steel has been the natural solution for long span bridges since 1890, when the Firth of Forth cantilever bridge, the world's major steel bridge at that time was completed. Standing tall, watching over life in Kolkata. Much like the Bay Bridge in San Francisco, the Howrah Bridge is a landmark that has become the very identity of Kolkata. Overcoming problems, Tata Steel delivered. Howrah Bridge is the most famous landmark of Kolkata. Of course, the participation became possible thanks to the metallurgical department for process control started by the company in 1925, which was constantly improving steel quality and addressing customer feedback. The Howrah Bridge is the first cantilever suspension bridge of its type. Over more than 75 years, the Howrah Bridge has been the grand keeper of the City of Joy. Built during WWII, it’s one of the world’s busiest bridges and a Kokatan architectural icon. Its report was available by 1929 and commented upon by the technical media. A structure which is made from organised combination of structural STEEL members designed to carry loads and provide adequate rigidity Steel structures involve a sub-structure or members in a building made from structural steel. The bridge helps to reduce traffic and accidents, all bridge building designs are not similar, its different construction types of bridges. To complete the subscription process, kindly open your inbox and click on the confirmation link which has been emailed to you. Japan had taken Burma some nine months ago and ‘Calcutta’ was as lucrative a target as any other. Copyright © document.write(new Date().getFullYear()). For all purposes, 'Make In India' was born in that era. Roll pass designers had to step in and to modify the pass design so that it was possible to roll sections in this special alloy steel quality as well as in plain carbon quality on the same roll-setting. 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. The main tower was constructed with single monolith caissons of di- There were problems with the rolling of sections in the mills. “If they had to rely on import of steel, the construction would have been enormously delayed. 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. In 1862, the Government of Bengal asked George Turnbull, chief engineer of the East Indian Railway Company to study the feasibility of bridging the Hooghly River. The Howrah Bridge is a suspension type balanced cantilever bridge with the central span between the two main towers of the bridge measuring about 1500 ft, … THE DEFINITIVE GUIDE TO DESTINATIONS, ITINERARIES, THINGS TO DO, RESTAURANTS, NIGHTLIFE and LOTS MORE! Howrah Bridge, also known as All the steel work, amounting to some 3,400 tons, was manufactured by the Tata Iron and Steel Company”. “They looked like Zeppelins to a child”, recalls Ashoke Chatterjee.. Steel is indeed suitable for most span ranges, but particularly for longer spans. In 1943 the new Howrah bridge was opened for general people. “They looked like Zeppelins to a child”, recalls Ashoke Chatterjee... An Indian enterprise was ready with the ability to supply steel to the required specifications. The bridge bears the load of 100,000 vehicles and more than 150,000 pedestrians every day. An iconic landmark of Kolkata, Howrah Bridge is a massive steel bridge constructed over the Hooghly River. The central span of the bridge is 457 m along with a suspended span of 171 m, and cantilever arms of 142 m. The length of the anchor spans is 99 m. The truss formation for the cantilever arm and anchorage arm is a K-type, and that for the suspended span is an N-type. 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. “The steel structure faces regular corrosion because of moisture from the river and the generally high humidity in this part of the country. It carries daily traffic of over one Lac … These were barrage balloons, large kite balloon, used to defend installations against aircraft attack by raising aloft cables that created a collision risk and stymied the bomber’s intentions. For most of 21st century Bengal, focused on its “glorious past”, this is the 20th century engineering marvel that could only have been possible in ‘Calcutta’; the colossus, straddling the Hooghly, a distributary of the mighty Ganges. Fig.4: Pin Bearing for Bridges. In 2006, Kolkata port authority repairs some parts of the structure which cost around 5 million. This bridge consumed 26,500 tons of steel, out of which 23,000 tons of high-tensile alloy steel, known as Tiscrom. 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. India had proved its brilliance in the world and Howrah bridge is stading tall to speak volumes about it. The official cantilever design made use of such high-tensile steel wherever it would deliver lower costs. The bridge officially started for use in 1943 when it was the world’s third-longest cantilever bridge. It is a 705 meter long steel cantilever bridge.It is said that about 150000 people cross everyday. 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 … Today, it is the sixth longest bridge of its type in the world. there are different types of bridge-constructions design. The iconic landmark of Kolkata, Howrah Bridge is a massive steel structure which is considered as one of the longest cantilever bridges of its type in the world. All rights reservedAbout Us | Sitemap | Authors | Contact Us | Advertise with Us | Privacy Policy | Terms of Use and Grievance Redressal Policy | Feedback A Times of India initiative | Weather powered by Skymet Weather. Out of 26,000 tons of steel… Coming into ‘Calcutta’ in 1945, Ashoke Chatterjee, now 83, found this incredible structure with what seemed to have “dirigibles” flying above it. The Howrah Bridge was the targeted bridge for a bombing. He had recently established the company's rail terminus in Howrah. Also known as Rabindra Setu, it connects Howrah and Kolkata. High-tensile structured steel had by then proven itself. The company later changed its name to Rendel, Palmer & Tritton”. Built without nuts and bolts, the Howrah Bridge was framed by riveting the whole steel structure. Every festival was celebrated with great gusto, bringing work to a halt. A bridge is a structure made over a river, rail track, road, or something else so that vehicles and peoples cross over those obstacles without much effort. The archives of Rendel Palmer and Tritton say: “James Meadows Rendel, the 6th President of the Institution of Civil Engineers (ICE) 1851–1853 formed Rendel & Partners in 1838 in London, U.K. In its early years, any Bollywood depiction of “Kullkutta” had to include the silver festoon across the city’s skyline. Bombard the city they did on December 20, 1942, and again but, destined for great glories, the set-to-be-inaugurated Howrah Bridge managed to stay out of the air-raiders’ radar. Made in India; skill India…it all began with the Howrah Bridge, says Ashoke Chatterjee, a design guru and the acknowledged master of India’s creative space, who has literally “experienced” the bridge since the age of 10. High-tensile rivet steel was specified to have an ultimate sheer strength, on driven rivets, of 26 tons per square inch. © 2019-2021 Tata Sons Private Limited. Today, the Howrah Bridge is a cultural emblem. the first vehicle over the bridge was a tram. 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. It had earlier proved its credentials as had local engineering fabricators in the construction of the £450,000 (Rs 60 lakh) King George VI Bridge. “I remember the bombing of Calcutta by the Japanese, the target being Howrah Bridge”, said Katyum Randhawa, then a young Parsi girl, in a later submission to WW2 People’s War. Source 2. The steel consumed amounts to whopping 8.26,500 tons, during its construction. The Howrah Bridge connects Calcutta with the Howrah district on the opposite bank. Excerpted from Howrah Bridge: A Icon In Steel, (2018) published on the 75th anniversary of the inauguration by Tata Steel. The project was assigned to India’s Braithwaite Burn and Jessop Construction Company Limited. HOWRAH BRIDGE - Rabindra Setu (1941) (Cantilever Suspension Bridge) BRAHMAPUTRA BRIDGE is a combined road and rail bridge over the Brahmaputra river in the north eastern Indian state of Assam. The bridge does not have nuts and bolts but was formed by riveting the whole structure. This was the company that was asked to design the cantilever bridge of 1,500 feet span, with a fixed height, a 71 feet wide roadway with two 15 feet cantilever footways. Howrah Bridge is a tramway, light or metro rail bridge, road bridge, road bridge, cantilever truss bridge and steel bridge that was built from 1936 until 1943. The Howrah Bridge was thus decked up in protective gear for war. Even Herge’s Tintin finds himself placed before the Howrah Bridge, on the Facebook page of the Belgian Embassy, without the boy detective ever having visited the city. They are checking the pulse of this lifeline to the city of Kolkata, its iconic Howrah Bridge. Not even the registers of the Port Commissioners dared log an entry. 2014-5060 Under The Guidance Of Mr. SOUMEN ROY 2. In doing so, it also considered navigational aspects at the Hooghly, hydraulics and its tidal conditions. 1. ELEMENTS IN A STEEL STRUCTURE Structural member is physically distinguishable part of structure with independent structural … About thousand of tons of high-tensile alloy steel was procured from Tata Steel, for the Howrah Bridge. Construction of the bridge involved approx. The Howrah Bridge was thus decked up in protective gear for war. Almost unheralded as the bridge itself that was thrown open to the public of ‘Calcutta’, as it was then called, in the dead of the night on February 3, 1943, a tramcar rolling down from the city end to the station end. More than 75 years ago, on February 3, 1943, the Howrah Bridge was opened to the public. They inspect every nook and corner for any tell-tale sign of potential harm to the bridge; from bird nests to any suspicious corrosive ‘brownish red’ stain. HOWRAH BRIDGE Places to visit in Kolkata . He reported on 19 March, with large-scale drawings and estimates, that: Shubhankar.sengupta19 / WikiCommons The panel points are located in the lower chord of the main trusses through hungers. HOWRAH BRIDGE(ESTD-1943) PRESENTED BY SOURAV ROY HOWRAH BRIDGE(ESTD-1943) PRESENTED BY SOURAV ROY ROLL NO. For this bridge is theirs for safekeeping; it is not merely a bridge for passing but an emotion writ in shining silver. The sight of the bridge deck hanging from 39 pairs of hangers suspended from the main trusses is quite mind-blowing. steelstructures-130906015820-.pptx - Free download as Powerpoint Presentation (.ppt / .pptx), PDF File (.pdf), Text File (.txt) or view presentation slides online. 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