2009 Volume 65 Issue 1 Pages 273-282
Recently, application of continuous bridge became popular. On the other hand, consideration both of seismic load and thermal stress is very important issue for design of multi-span continuous bridge, but current specification for highway bridges doesn't request the inspection of the effect on expansion and contraction of girder caused by temperature change during earthquake. This paper presents the result of dynamic response analysis of 5 continuous-span prestressed concrete bridge considering the statically effect of temperature and creep etc. by nodal force at the end of a girder. As a result, ductility factor of piers increases as temperature increases. Furthermore, residual displacement also increases due to the same reason. But, it is found that the effect of temperature is little. Because, the temperature is one of statically indeterminate and the other factors(creep etc.) is already considered in seismic design according to japan road specification.