In Spain the relevant code for buildings is NBE AE-88.
Dor bridges the vigent code IAP gives the same.
Individual material oriented codes give other data such normative coefficients of eleongation with temperature.
Typically, under some sizes, thermal actions are much times dismissed, this being compliant to the code. Larger structures such bridges, integral or not and out of the relevance to their deformations specially to the bearing meed further consideration, going to gradients of temperature in more than homogeneous temperature change.
The more complex cases I assume need be analyzed in a 3D heat transfer-stresses setup, but building designers rarely meet it, and if somtime, a consultancy (such a very thick mat placement) may be warranted.