Reliability-Based Life Cycle Assessment of the Concrete Slab in Bridges

Abstract

Abstract To guarantee the safety and serviceability of present bridges maintenances are essential all around the Globe and most governments’ budget effect by overhaul such infrastructures yearly without any rate of interest in these maintenances. A large proportion of costs are allocated for maintenances costs due to the increasing number of present bridges. Maintenances also have a substantial effect on economic and sustainable development. In this study, a durability reliability analysis of reinforced concrete slabs subject to the action of deteriorations during the life cycle of bridges is presented. This paper is focused on providing insight into the role of reliability life cycle assessment in One Century of bridge maintenance cost performance by two reliability factors in the monitoring of 150 points of modeled bridge. The first factor in this model is crack size expansion about the time scale of the concrete deck by consideration of concrete deterioration. The second factor is the reliability of the compaction ratio of concrete (fc) based on the probability that this factor will perform as intended for 100 years duration under normal conditions. Finally, this paper generates a complicated model, which illustrates specific duration need maintenance to reach high performance in a total of 100 years. For instance, by this sample and data binding, the best time to get reliable and durable structure is in 23 years of initial usage, and this bridge needs concrete structural rehabilitation to reach high performance and durable concrete deck and pavement in the life cycle of the bridge.