Masonry Strength

Abstract

In the previous chapter, the numerical modelling of arch bridges was discussed intensively. During the discussion, it should have become clear that in most cases, historical arch bridges fail due to the development of a mechanism chain with hinges, by sliding, or by a combination of this. For these models, the compression strength is not of utmost importance. However, in two other cases one has to consider the masonry compression strength: first looking at the developing hinges where maximum compression forces are reached, and second considering arch bridges under maximum equal load. Maximum equal load can be reached by widening the road lane and therefore increasing the dead load of the bridge.