山区水闸抗滑稳定目标可靠指标校准

Calibration on target reliability index of anti-sliding stability for sluices in mountainous area

按照《水利水电工程结构可靠度设计统一标准》(GB 50199—94)相关原则,首次采用"校准法"对山区水闸抗滑稳定目标可靠指标βT进行研究。通过对16座山区水闸工程的抗滑稳定安全系数复核,采用结构优化方法对可靠指标进行了校准,提出了安全级别分别为Ⅰ、Ⅱ、Ⅲ级的山区水闸抗滑稳定目标可靠指标βT。该成果对水闸设计规范按分项系数极限状态设计准则的修订具有一定参考价值。

According to the relevant principles in the 'Unified standard for reliability design of hydraulic engineering structures(GB 50199—94)',the 'calibration method' is applied to study the target reliability index βT of anti-sliding stability for sluices in mountainous area the first time.Through the checks made on the safety factors of the anti-sliding stabilities of 16 sluices in mountainous areas,the reliability index is calibrated based on the method of structural optimization,and then the target reliability...