Abstract
Under an economic crisis, bridge management system has been a critical issue to maintain bridge stock in efficient way. However, calculated LCC from the deterioration prediction is largely differed from the LCC of real bridges. One of the reasons is due to spatial variation of deterioration that caused by fluctuation of environmental and structural conditions in time and space. Maintenance scenarios that were calculated from deterministic deterioration prediction could not cover the variation. This paper aims to the scenarios generation with consideration of the spatial variation of deterioration. The target bridge is virtually subdivided into a discrete number of elements having its own deterioration rate. Those elements are classified into several groups according to state of deterioration. As the most deteriorated group has reached the condition level, maintenance scenario will be generated for the group while leaving the other groups untouched. As a result, more practical LCC and maintenance scenario can be calculated accordingly.
