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Gopal Bansal
2018-09-26 07:27:46

Basically, there are mainly three reasons for this arrangement: (i) The permanent structure is a statically indeterminate structure.
During construction by using span-by-span construction, if the first phase of construction consists of the first span length L only, then the sagging moment in the mid span of the partially completed bridge is larger than that of completed two-span permanent structure.
To avoid such occurrence, 0.25L of bridge segment is

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