3. Bridge pavements
3.1 Movements and joint locations
A joint is required on a bridge, viaduct or footbridge whenever there is a possibility of relative movement between two structural elements of the structure and when the area of movement affects the roadway carrying traffic
For joint performance, a distinction must be made between :
large river bridges with long spans where movements can be very significant;
small bridges spanning roads or rivers.
The "blow" (or sometimes "clearance") of a joint is the maximum foreseeable relative displacement of the two facing elements, measured between their two extreme positions (and not in relation to the mean or...
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Bridge pavements
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