Joint continuity influenced by inclined bridge deck, Civil Engineering

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Q. Joint continuity influenced by inclined bridge deck?

Bearings are generally designed to sit in a horizontal plane so as to avoid the effect of extra horizontal force and uneven pressure distribution resulting from non-horizontal placing of bearings. For an inclined bridge deck subject to a large longitudinal movement, a sudden jump is induced at expansion joint and discontinuity of joint results. To solve this problem an inclined bearing in place of a truly horizontal bearing is adopted if piers can take up induced horizontal forces. 

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Fig. The effect of inclined bridge deck on joint discontinuity


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