V-shaped Rigid-frame bridge
a v-shaped rigid frame efficient way support longer bridge using 1 span isn t feasible. each v-shaped pier supports deck in 2 places while requiring 1 foundation. bending moments experienced in piers minimal, allowing significant reductions in foundation size. additionally, effective length of each span shortened compared spans of bridge vertical piers. however, system less commonly used in rigid frame bridges because piers need approximately centered under bridge. bridges span on roadways or waterways , construction of piers in cases can costly , challenging.
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