DESIGNS of retaining walls, earth dam, abutments, foundations, etc. are very important problems related to the geotechnical engineering. To minimize the devastating effect of earthquake on retaining structures, computation of earth pressures and the point of applications carries attention of ...
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Suspension Bridges
The earliest suspension bridges were found in China, dating back to 206 B.C. Many of the earlier bridges were made from materials such as twisted grass. In the early 19th century, iron chains became a popular material for suspension bridges. ...
Different Cast-in-situ Methods of Bridge Construction
Cast-in-situ method of construction of bridges is a flexible method in which the demands of more unusual geometrical shapes can be easily coped with. Cast-in-situ methods are adopted when it is hard to transport the fabricated pars due to size ...
PRECAST METHOD OF BRIDGE CONSTRUCTION
Precast Method of Bridge Construction: (i) Precast Beams: Precast beam decks are generally used for short span bridges ranging between 5m to 50m – these may be railway or motorway bridges. Standard inverted tee beams or M-beams are chosen and ...
SPAN BY SPAN CASTING METHOD OF BRIDGE CONSTRUCTION
Span by Span Casting method of Bridge Construction: Span by span is a relatively new construction technique historically associated with cantilever construction but the advancement in external prestressing has enabled its own potential use to grow. Today it is considered ...
INCREMENTAL LAUNCHING METHOD OF BRIDGE CONSTRUCTION
Incremental Launching Method of Bridge Construction: For bridge decks greater than 250m in length, the method of incremental launching can be considered. With this method of construction the bridge deck is built in sections by pushing the structure outwards from ...
CABLE STAYED METHOD OF BRIDGE CONSTRUCTION
Cable Stayed Method of Bridge Construction: The technique of cable-stayed construction has been used and continually developed over the last 50years. It is the most common construction choice today when a bridge is required to span more than 300. Cable-stayed ...
ARCH METHOD OF BRIDGE CONSTRUCTION
Arch Method of Bridge Construction: The arch is the most natural bridge shape in nature. Originally constructed of stone, today such bridges are built of reinforced or precast concrete. They are often the most economical choice where a bridge is ...