A steel beam is used in the roadbed of a bridge. The beam
Chapter 12, Problem 12.8(choose chapter or problem)
A steel beam is used in the roadbed of a bridge. The beam is mounted between two concrete supports when the temperature is 23 C, with no room provided for thermal expansion (see Figure 12.14). What compressional stress must the concrete supports apply to each end of the beam, if they are to keep the beam from expanding when the temperature rises to 42 C? Assume that the distance between the concrete supports does not change as the temperature rises.
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