| Presently around the world the reinforced concrete bridge widely exists, but due to thematerial itself, structural design parameter as well as the influence of construction quality, thedurable question is one that of subject matters this kind of bridge will faces. Domestic andforeign-related survey data showed that the economic losses caused by the disease as aresault the durability of the bridge structure is very huge, and along with the worsening andactive time of environment the enhancement of growth as well as service feature, thereinforced concrete bridge’s durable question is getting more and more prominent. Durabilityprediction is carried out very necessary in order to avoid dire consequences due to failuredurability.This article starts from the durable judgment targets which are based on the time-variablethis condition, has realized using the method of AHP-fuzzy synthesis forecast to thereinforced concrete bridge different service life durable level forecast.Unifies the real bridge,the predictions of this method with a specific term durability of the actual results of theassessment of comparative analysis to verify the feasibility of forecasting methods in thisarticle, and the specific implementation process is as follows:First of all, this article focuses on the phenomenon that the general durability predictionmethods only consider single factors this limitation, and then,selected more than one indexfactors have a greater impact on the reinforced concrete bridge. For can analyze theseinfluencing factor conformity together to evaluate the durability, through to the analysis ofconventional durability appraisal method proposed that realizes using the method of AHP-fuzzy overall assessment, and has built the third-level model of durable appraisal, namelycomponent to part and part to structure and structure to whole appraisal model. Whencalculating the target weight has given the general analytic hierarchy separately and not thedeterministic analytic hierarchy computation weight method.Secondly, introduced by the degradation analysis of this phenomenon durability bridgeduring use time-varying conditions. Based on information available literature, has selectedthe time-variable forecast model for several kinds of durable influence targets that this articleproposed, then obtained in light of the third-level model of AHP-fuzzy overall assessmenttime-variable condition-based the reinforced concrete bridge durable AHP-fuzzy synthesisforecast model.Finally, according to durable forecast model that this article gives, to some were usingthe reinforced concrete bridge to carry on the durable predictive parsing. Carries on the contrast in some specific age limit’s this article forecasting result and actual durableevaluation result this bridge, passes has the difference possible influencing factor as well asthe influence generalized analysis to the forecasting result and actual evaluation result,confirmed this article research technique to be practical and feasible. |
