【作者】 李晓丽；

【导师】 申向东；

【作者基本信息】 内蒙古农业大学 ， 农业水土工程， 2002， 硕士

【摘要】 可靠度作为安全指标，它具有反映结构安全性、适用性、可靠性的特点，在桥梁、大坝等的大中型工程中都得到了广泛的应用。但是，对于具体的水工建筑物的可靠性分析问题，由于水工结构的条件、工程的复杂性，因此在结构设计可靠性研究方面进展甚微，尤其是对泵房、水闸等水工建筑物的可靠性分析研究甚少。本文针对这一特点，按照结构可靠性理论，考虑水工建筑物的静、动力工况，对泵房、水闸等建立了可靠性分析的一般计算方法，并选择了两个具有代表性的两个泵站：一个是小型泵站，一个是中型泵站。对这两个泵站的可靠性进行了较为系统、严密的校核验证。得出了比较满意的结果。在以往的泵站设计中，对于小型泵站，一般不考虑地震力；对于大中型泵站，即使考虑地震载荷大多都运用拟静力法，进行大致的近似计算。而本文是通过反应谱法，求解泵站的自振频率、周期。然后在相应的地震烈度下，求解其所受的最大地震力，从而使地震力的求解更精确。同时，再将求得的地震力，引入泵房的可靠性指标的计算中。从而使得泵房的可靠度更具有说服性。也为可靠性理论在泵站可靠度分析上的应用，提出了一种分析的方法。更多还原

【Abstract】 Fiduciary level, a safety index, has the features of security, feasibility and reliability. This it is widely used in large and medium engineering such as bridges, dams and so on. However, the condition of hydraulic structure and structural complexity gives difficulties to the reliability analysis. So the reliability make less, especially in pump station and water gate.In this essay, a general computational method to pump station and water gate was put forward according to the reliability theory and the station and dynamic operating node of hydraulic structure .The two typical pump station were dozed .the one is midget pump station and the other is medium one. Satisfactory result was attained through checking and verifying the two pump stations reliability strictly.The earthquake force was ignored during designing midget pump station, while the pseudo-static method just gave approximate calculation to the large and medium pump station ever.In this essay, the answer to natural frequency of vibration and periodic time will given in the response spectrum method. Then the precise earthquake force can be gained under the earthquake intensity accordingly .The reliability will be more reasonable and persuasive. When the earthquake force entered the reliability index. It puts forward a different method to reliability theory in reliability analysis of pump station.更多还原