What order of magnitude would common strains take on within concrete bridges? I am looking for types of strains that develop over longer periods of time as well as strains due to dynamic loading.
Wikipedia states the following on their page on concrete creep and shrinkage:
Changes of pore water content due to drying or wetting processes cause significant volume changes of concrete in load-free specimens. They are called the shrinkage (typically causing strains between 0.0002 and 0.0005, and in low strength concretes even 0.0012) or swelling (< 0.00005 in normal concretes, < 0.00020 in high strength concretes).
I suppose this is a type of strain that develops over longer periods of time. How about strains due to earthquakes?