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运用美国GSA指南建议的结构安全性能指标评价理论,改进了经典可拓学物元模型,并应用于某场道剩余寿命评价和预测,利用现场检测和室内测试的数据进行了验证。结果表明:该方法将检测和试验数据进行安全性能评价获得的性能指标作为物元模型的评价量值,实现了影响因素分析和物元评价模型的分离;可利用同一物元评价模型进行不同影响因素下的评价,适用性强、结果真实可靠;改进后的模型将评价量值的取值范围从区间内取值拓广为连续函数,即能进行单次评价又能进行预测,还可灵活调整评价指标的权系数,克服了经典物元模型需要重新划分评价标准的局限;能为道路管理部门结合道路巡检数据自行评价提供依据有效工具,利于道路养护维修的科学决策。
Using the theory of structural safety performance evaluation recommended by the American GSA Guide, the classical extrinsic meta-model is improved and applied to the remaining life assessment and prediction of a road. The data are verified by on-site testing and indoor testing. The results show that this method uses the performance indexes obtained from the safety performance evaluation of the test and test data as the evaluation value of the matter-element model to achieve the separation of the influencing factor analysis and the matter-element evaluation model; the same matter-element evaluation model can be used for different impacts The evaluation under the factor has strong applicability and the result is true and reliable. The improved model expands the range of the evaluation value from the interval value to the continuous function, that is, it can make single evaluation and forecast, Adjusting the weight coefficient of the evaluation index overcomes the limitation that the classical matter-element model needs to be re-divided into evaluation criteria. It can provide an effective tool for the road management department to combine with the road inspection data self-evaluation to facilitate the scientific decision-making of road maintenance and repair.