Concrete bridges are most widely used all over the world, it has important practical significance to research the durability. In this paper, research progress home and abroad of durability and maintenance decision for concrete bridge is summarized. The main problems in research are pointed out and future research tendency is discussed. The content of this paper has good reference value for correlation study.

With the purpose of finding effective method in construction schemes decision-making and improving productivity level of construction enterprises, the application of simplified ELECTRE method in optimal selection of construction schemes was studied in this paper. The calculation process and main steps of simplified ELECTRE for optimal selection of construction schemes were presented here. An example of construction scheme optimal selection for shear wall template was analyzed, and the calculation progress was programmed on the platform of MATLAB 7.0. The result analysis shows that simplified ELECTRE can supply satisfactory preferential order of alternatives considering comprehensive influence of many factors. It has simple and clear sorting principle, furthermore, it is very suitable to be calculated in program, and the result is accurate and reliable. Simplified ELECTRE method is proved to be good to solve the problem of optimal selection of construction schemes.

No abstract

Abstract:Along with the fast increasing of maintenance demand, the problems associated with maintenance and reinforcement decision-making for deteriorating bridges such as maintenance strategy optimization have been present research focus. The solutions to these problems have inspired a considerable amount of research, one particular area being the application of evolutionary search algorithms such as the genetic algorithm (GA). This paper begins with a brief overview of bridge maintenance strategy optimization followed by a review of the current state of research in applying evolutionary techniques to solving this problem.