A significant opening within masonry walls will always require a lintel of some sort to bridge over it. In contrast to popular opinion, lintels are structural elements though classified as secondary structural elements whose primary function is to support the masonry that arches over the opening
For every structure, frame stability is an important area of consideration. Designers of structural steel-work were the first to recognize the importance of considering the stability of steel frames in BS-5950.
This is the first post in a series on concrete bridges, the series will discuss in detail the various aspects of concrete bridge design and construction. This post introduces the concept and the key benefits of using concrete for bridges