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Godavari Arch Bridge
The Godavari Arch Bridge is a bowstring-girder bridge that spans the Godavari River in Rajahmundry, India. It is the latest of the three bridges that span the Godavari river at Rajahmundry. The Havelock Bridge being the earliest, was built in 1897, and having served its full utility, was decommissioned in 1997. The second bridge known as the Godavari Bridge is a truss bridge and is India's third longest road-cum-rail bridge crossing a water body.Dayaratnam, pp. 219–228 The bridge is one of the longest span prestressed concrete arch bridges in Asia. The Indian Railways who built this bridge have stated that "It is perhaps for the first time anywhere in the world that a bowstring arch girder using concrete has been constructed for such a long span of , and that too for the Railway loading." It has been widely used to represent Rajahmundry in arts, media, and culture. It is one of the recognised symbols of Rajahmundry. Geography The bridge is built across the Godavari River, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Godavari River
The Godavari (IAST: ''Godāvarī'' od̪aːʋəɾiː is India's second longest river after the Ganga river and drains into the third largest basin in India, covering about 10% of India's total geographical area. Its source is in Trimbakeshwar, Nashik, Maharashtra. It flows east for , draining the states of Maharashtra (48.6%), Telangana (18.8%), Andhra Pradesh (4.5%), Chhattisgarh (10.9%) and Odisha (5.7%). The river ultimately empties into the Bay of Bengal through an extensive network of tributaries. Measuring up to , it forms one of the largest river basins in the Indian subcontinent, with only the Ganga and Indus rivers having a larger drainage basin. In terms of length, catchment area and discharge, the Godavari is the largest in peninsular India, and had been dubbed as the Dakshina Ganga (Ganges of the South). The river has been revered in Hindu scriptures for many millennia and continues to harbour and nourish a rich cultural heritage. In the past few decades, the riv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arch
An arch is a vertical curved structure that spans an elevated space and may or may not support the weight above it, or in case of a horizontal arch like an arch dam, the hydrostatic pressure against it. Arches may be synonymous with vaults, but a vault may be distinguished as a continuous arch forming a roof. Arches appeared as early as the 2nd millennium BC in Mesopotamian brick architecture, and their systematic use started with the ancient Romans, who were the first to apply the technique to a wide range of structures. Basic concepts An arch is a pure compression form. It can span a large area by resolving forces into compressive stresses, and thereby eliminating tensile stresses. This is sometimes denominated "arch action". As the forces in the arch are transferred to its base, the arch pushes outward at its base, denominated "thrust". As the rise, i. e. height, of the arch decreases the outward thrust increases. In order to preserve arch action and prevent collapse ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fritz Leonhardt
Fritz Leonhardt (12 July 1909 – 30 December 1999) was a German structural engineer who made major contributions to 20th-century bridge engineering, especially in the development of cable-stayed bridges. His book ''Bridges: Aesthetics and Design'' is well known throughout the bridge engineering community. Biography Born in Stuttgart in 1909, Leonhardt studied at Stuttgart University and Purdue University. In 1934 he joined the German Highway Administration, working with Paul Bonatz amongst others. He was appointed at the remarkably young age of 28 as the Chief Engineer for the Cologne-Rodenkirchen Bridge. In 1954 he formed the consulting firm Leonhardt und Andrä, and from 1958 to 1974 taught the design of reinforced concrete and prestressed concrete at Stuttgart University. He was President of the University from 1967 to 1969. He received Honorary Doctorates from six universities, honorary membership of several important engineering universities, and won a number of prize ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bureau BBR
BBR Construction, BBR System, Bureau BBR, BBR Group or BBR VT International is a Swiss construction firm specializing in cable construction projects such as suspension bridges and tramways. They built the first carbon fibre stay cable bridge. The firm was started in 1944 by three engineers, Max Birkenmaier, Antonio Brandestini and Mirko Robin Ros. Their stay cable technology has been applied to over 400 major structures around the world. Among their projects have been: *1961 the Schiller Street Bridge in Stuttgart, Germany, span 61 meters, a curved, stay cable bridge for pedestrians *1991 the Gilly Bridge over the Isere River in Albertville, France, longest span 102 meters, a stay cable bridge with a single tower *1996 the Storchenbrücke bridge in Winterthur, Switzerland, main span 63 meters, the world's first carbon fibre stay cables bridge *1997 the Godavari Arch Bridge over the Godavari river in Rajahmundry, India, Asia's second longest railroad bridge. *2012 The Ada Bridge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tie (engineering)
A tie, strap, tie rod, eyebar, guy-wire, suspension cables, or wire ropes, are examples of linear structural components designed to resist tension. It is the opposite of a strut or column, which is designed to resist compression. Ties may be made of any tension resisting material. Application in wood construction In wood-frame construction ties are generally made of galvanized steel. Wood framing ties generally have holes allowing them to be fastened to the wood structure by nails or screws. The number and type of nails are specific to the tie and its use. The manufacturer generally specifies information as to the connection method for each of their products. Among the most common wood framing ties used is the hurricane tie or seismic tie used in the framing of wooden structures where wind uplift or seismic overturning is a concern. Hurricane tie A hurricane tie is used to help make a structure (specifically wooden structures) more resistant to high winds (such as in hurric ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Railway Board (India)
The Ministry of Railways is a ministry in the Government of India, responsible for the country's rail transport. The ministry operates the statutory body Indian Railways, an organisation that operates as a monopoly in rail transport and is headed by the Chairman and CEO of Railway Board. The Ministry of Railways along with the Railway Board is housed inside Rail Bhawan in New Delhi. Organisational structure The ministry has a Union Minister and Minister of State. A number of directorates report to the Railway Board. Most of the officers posted in Ministry of Railways are either from organised "Group A Railway services" or the Railway Board Secretariat Service. Indian Railways The statutory body known as the Indian Railways, which reports to parliament and is under the ownership of ''Ministry of Railways'' of the Government of India. The Indian Railway Board comprises one Chairman, seven "members of the Railway Board", and a Financial Commissioner (who is the r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Research Design And Standards Organization
The Research Designs & Standards Organisation (RDSO) is an ISO 9001 research and development organisation under the Ministry of Railways of government of India, which functions as a technical adviser and consultant to the Railway Board, the Zonal Railways, the Railway Production Units, RITES, RailTel and Ircon International in respect of design and standardization of railway equipment and problems related to railway construction, operations and maintenance.Rao, M.A. (1988). ''Indian Railways'', New Delhi: National Book Trust, pp.217–28 History To enforce standardization and co-ordination between various railway systems in British India, the Indian Railway Conference Association (IRCA) was set up in 1902. It was followed by the establishment of the Central Standards Office (CSO) in 1930, for preparation of designs, standards and specifications. However, till India's independence in 1947, most of the designs and manufacture of railway equipment was entrusted to foreign consu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Terms Of Reference
Terms of reference (TOR) define the purpose and structures of a project, committee, meeting, negotiation, or any similar collection of people who have agreed to work together to accomplish a shared goal. Terms of reference show how the object in question will be defined, developed, and verified. They should also provide a documented basis for making future decisions and for confirming or developing a common understanding of the scope among stakeholders. In order to meet these criteria, success factors/risks and constraints are fundamental. They define the: * vision, objectives, scope and deliverables (i.e. what has to be achieved) * stakeholders, roles and responsibilities (i.e. who will take part in it) * resource, financial and quality plans (i.e. how it will be achieved) * work breakdown structure and schedule (i.e. when it will be achieved) TORs should include: * success factors, risks and constraints. Although the terms of reference of a project are sometimes referred to a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Span (architecture)
Span is the distance between two intermediate supports for a structure, e.g. a beam (structure), beam or a bridge. A span can be closed by a solid beam or by a rope. The first kind is used for bridges, the second one for power lines, overhead telecommunication lines, some type of Antenna (radio), antennas or for aerial tramways. The span is a significant factor in finding the strength and size of a beam as it determines the maximum bending moment and Deflection (engineering), deflection. The maximum bending moment M_ and deflection \delta_in the pictured beam is found using: :M_ = \frac :\delta_ = \frac = \frac where :q = Uniformly distributed load :L = Length of the beam between two supports (span) :E = Modulus of elasticity :I = Area moment of inertia Note that the maximum bending moment and deflection occur midway between the two supports. From this it follows that if the span is doubled, the maximum moment (and with it the tensile stress, stress) will quadruple, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bridge
A bridge is a structure built to span a physical obstacle (such as a body of water, valley, road, or rail) without blocking the way underneath. It is constructed for the purpose of providing passage over the obstacle, which is usually something that is otherwise difficult or impossible to cross. There are many different designs of bridges, each serving a particular purpose and applicable to different situations. Designs of bridges vary depending on factors such as the function of the bridge, the nature of the terrain where the bridge is constructed and anchored, and the material used to make it, and the funds available to build it. The earliest bridges were likely made with fallen trees and stepping stones. The Neolithic people built boardwalk bridges across marshland. The Arkadiko Bridge (dating from the 13th century BC, in the Peloponnese) is one of the oldest arch bridges still in existence and use. Etymology The '' Oxford English Dictionary'' traces the origin of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
