Linear joins and Gaps
Component joints and settlement joints must be provided in every large building structure. In order to avoid extreme crack formation and structural deformation, these joints absorb building and structural expansion and contraction. Good examples are the movement of concrete through temperature fluctuation, uneven settlement of building foundations, increased loads and structural movement resulting from vibration or as a consequence of shrinkage of the concrete. Scheduled deformations are absorbed by sliding joints and deformation bearings. These require protection against the effects of fire.