This section contains requirements for the design and selection of structural bearings. The selection and layout of the bearings shall be consistent with the proper functioning of the bridge@ and shall allow for deformations due to temperature and other time dependent causes. The loads induced in the bearings and structural members depend on the stiffnesses of the individual elements and the tolerances achieved during fabrication and erection. These influences shall be taken into account when calculating design loads for the elements. Units used in this section shall be taken as KIP@ IN@ RAD@ ??and Shore Hardness@ unless noted.