The Enduring Evaluation Of Reinforced Concrete Bridge Studies

Continuously strengthen along with the our country economic, the fastly development of highway and railway communication industry, as a national important infrastructure, bridges carry to promise that various supplies circulates smoothly and all countries the heavy responsibility of economic exchanges is as usual. Bridge is the Life Line of moderate development relation between society and economy, With the rapid development of bridge construction,huge funds devotion,imposing functions in economic social medium, make the people more and more value the safety of the bridge.But because the influence of the environment and increase of the traffic volume day by day and blemishes, such as concrete and reinforcing bar oneself material...etc., cause the problem of durable existing in bridge structure’s inevitably. In general, there are three reasons that lead to the durable of resulting in the bridge hurts:one is caused by aging bridge structure itself, this is the main reason; The second is along with the development of national economy, the loadding level of the bridges continuously improve, and the original design load level relative will be reduced, resulting in bridge overload service; The third is due to the shortages of design loads dint, not enough designing capacity, the construction quality closes nevertheless, bridge maintenance didn’t keep up with and some emergencies.Based on the durability of reinforced concrete structure to carry out research, on the one hand, to both the bridge for the durability evaluation ability, and carries on the scientific residual life prediction that enable managers to choose proper maintenance, reconstruction and so abandoned measures; On the other hand also can make engineering design personnel and decision makers for new project give full consideration to the project operation environment, natural environment factors, logistics development level on the bridge for the durability design improvement, so as to improve the design of the bridge engineering level, improve the construction process, to ensure the construction quality. Both maintenance and curing the existing structure of the practical significance, and the newly built bridge engineering for durability design improvement guidance.Therefore, the research of the bridge durable should be caused the attention of people and making better prevention and decision,attain to defend be not yet suffered from to to reduce unnecessary economic loss.