Howrah Bridge or Rabindra Setu

Howrah Bridge or Rabindra Setu

Howrah Bridge

It\'s among the Kolkata\'s known landmarks. The Howrah Bridge or Rabindra Setu, a bridge, is forever active with folks and vehicles, and also the best manner for a traveler to savor this is often to run across this engineering surprise. Keep your eyes associated ears open tho\' - this bridge is high on traffic! you\'ll be able to additionally choose an early-morning walk and absorb some contemporary watercourse air from this bridge.

The end of the seventeenth Century city witnessed the gradual emergence of the town of city led to by the merger of 3 villages - city, Sutanati & Gobindapur, on the japanese bank of the watercourse Hooghly, the opposite name of watercourse \'Ganga\'. On the western bank, Howrah came up as a active web site of commerce.

The twin cities of city (re-named as city within the year 2001), and Howrah , were separated by the watercourse Hooghly, and shared a typical historical linkage towards the ultimate construction of the Rabindra Setu, additional normally called Howrah bridge. whereas city, from alittle sleeping hamlet of artisans and mercantile community eventually developed , as an advert hub of a contemporary metropolitan town , Howrah (virtually the shop house of material resources) became its industrial satellite.

Kolkata was declared the capital of India by nation and remained thus until 1911. The train depot at Howrah discovered within the year 1906 and also the bridge (later popularly called Howrah Bridge) so served because the supply link with the country\'s one among the oldest metropolies, Kolkata. 

Sir pressman Leslie\'s renowned floating bateau bridge, the sooner avatar of the fashionable Howrah Bridge, was at first discovered   in 1874, virtually coinciding with the institution of the port of city in 1870.

For the convenient plying of traveler and traffic, the pool was connected as a full. However, this was unfastened everyday, significantly throughout the night for safe passage of steamers, boats and different marine vehicles. From nineteenth August, 1879, the bridge was well-lighted by fixing electrical poles at the centre.This was done by mistreatment the electricity rendered from the generator at the Mallick GhatPumping Station. The Bridge was then 1528 linear unit. long and sixty two linear unit. wide. On each sideswere pavements seven linear unit. wide for the sake of pedestrians. 

The emergence of city because the political capital of the state and increasing volume of merchandise routed through the port of city had a synergistic impact on the business importance of the bridge. the placement of the initial bateau bridge, was around a hundred yards down-stream of this Howrah Bridge (renamed as Rabindra Setu within the year 1965) once Rabindranath Tagore, the thinker - bard and one among the foremost necessary nineteenth century renaissance personalities to depart a long-lasting impression on fashionable India.

Howrah Bridge

Brief Details

Bridge kind : Suspension kind Balanced Cantilever

Central span 1500 linear unit between centers of main towers

Anchor arm 325ft every

Cantilever arm 468ft every

Suspended span 564ft

Main towers ar 280ft high on top of the monoliths and seventy six linear unit apart at the highest.

Bridge deck breadth seventy one linear unit with 2 footpaths of fifteen linear unit either facet.

 Other options of the Bridge

All members of the super structure comprise designed up riveted sections with a mix of high tensile and soft-cast steel.

Between towers bridge hangs from panel points within the lower chord of the most trusses with a series of hungers(39 pairs).

Road approach on the far side the tower is supported on ground going anchor arm free from deck hundreds

Bridge deck includes seventy one linear unit carriage approach and fifteen linear unit footway projected either facet of the trusses and braced by a longitudinal facia beam.

More regarding the Bridge

The deck system consists of cross girders adorned  between pairs of hungers  with fastened association.

Six rows of longitudinal stringer beams  span between cross girder.

Floor joists supported transversally on prime of stringers.

They support endless ironed steel troughing system.

Over that deck concrete is set out.

Joint System of Bridge (Expansion Joints)

Longitudinal enlargement and lateral sway movement of the deck ar taken care of by enlargement and articulation joints.

There ar 2 main enlargement joints, one at every interface between the suspended span and therefore the cantilever arms.

There ar enlargement joints at the towers and at the interface of steel and concrete structures at each approach.

 Articulation Joints

There ar total eight articulation joints.

3 at every of the cantilever arms.

2 within the suspended parts.

They divide the bridge into vertical pin association between them to facilitate movement movements of the deck.

Camber and Traffic clearance.

They are joined by a vertical curve of radius 5000 linear unit.

Cross gradient of deck is one in forty eight between kerbs and central four.9mtr. is level to supply tramway housing channel in between troughing.

 Foundation

The main tower is supported with single monoliths that ar fifty five.31 x 24.8 m in arrange with twenty one chambers.

Monoliths at Kolkata and Howrah facet ar supported thirty one.41 m and twenty six.53 m in below ground level severally.

Minimum headroom in roadway is five.8 m.

Freeboard for stream traffic is eight.8 m.