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What is the purpose of leveling pad in bridge bearing?

Bridge bearings should be installed to lie horizontally on bridge piers and columns so that it would not induce eccentricity forces on substructure. However, the bridge superstructure requires different longitudinal and transverse level and gradient in order to keep in line with the geometry of the road.

As such, it is natural to follow that the superstructure can hardly meet with substructure horizontally so that a leveling pad is introduced at the bottom of the superstructure to join with bridge bearing. Wedge-shaped leveling pad is commonly used for better concrete mobility at the bridge bearings.


This question is taken from book named – A Closer Look at Prevailing Civil Engineering Practice – What, Why and How by Vincent T. H. CHU.

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Kanwarjot Singh

Kanwarjot Singh is the founder of Civil Engineering Portal, a leading civil engineering website which has been awarded as the best online publication by CIDC. He did his BE civil from Thapar University, Patiala and has been working on this website with his team of Civil Engineers.

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One comment on "What is the purpose of leveling pad in bridge bearing?"

suresh kumar sharma says:

very informative………..

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