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QuestionHow does an engineer determine digit of cells for concrete box girder bridges?
AnswerIf depth of a box girder bridge exceeds 1/6 or 1/5 of bridge width, then it is optional to be designed as a single cell box girder bridge. However, if bridge depth is lesser than 1/6 of bridge width, after that a twin-cell or multiple cell is better choice as optional by Jorg Schlaich & Hartmut Scheef in 1982. However, one contain to note that even for wider bridges with small depths, number of cells must be minimized as readily available is not much improvement in transverse load distribution when number of cells of box girder is improved to three or more.
Differentiate between concrete and tendons In the case of pre-tensioned concrete members, the transfer of prestress takes place due to the bond between concrete and tendons. In
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The angle between the members at the joint is 30°. Design the members at the joint. Design also the connection of the members at the joint. The length of the principal rafter betw
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Determine the stresses set up in the brass: A compound bar is constructed from three bars 50 mm wide by 12 mm thick fastened together to form a bar 50 mm wide by 36 mm thick.
Question While designing sewer pipes , why vitrified clay pipes commonly is used for pipe size less than 600mm still as precast concrete pipes with PVC lining is used for pipe
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