A BRIDGE BUILT WITH STEEL GIRDERS IN 500mm in length and 50 m inwidth.Expansion joints are provided to compensate for the change inlength in the support girders as the temperature fluctuates. each joints can compensate for a maximum of 100mm of change in length.from historical records it is estimated that the minimum andmaximum temperature in the region will be -35C and 38C(DEGREECENTIGRADE).
WHAT IS THE MINIMUM NUMBER OF EXPANSION JOINTS REQUIRED?