| 1. | Acceptable reliability level
性合格标准 |
| 2. | The reliability level of the whole system under study can be got by the loads reliability indices and sub - system reliability indices , and an integrated model of reliability and economics is founded
以可靠性评估方法为基础，建立了可靠性和经济性的综合优化模型，利用遗传算法解决了两者之间的协调问题。 |
| 3. | For common reinforced concrete and steel reinforced concrete columns with axial compression , it is pointed out that the same stability coefficient can be adopted and closed reliability level can be provided
提出对于普通钢筋混凝土与型钢混凝土轴心受压柱，可采用相同的稳定系数，并具有基本相同的可靠度水准。 |
| 4. | The formulation has been applied to a bulk carrier which sails in the north atlantic ocean . furthermore , the effects of maintenance actions in increasing the reliability level of ship hull girder are analyzed
由此可见，对存在疲劳和腐蚀损伤的船体梁进行时变可靠性分析时，必须考虑维修因素的影响才能更加符合实际情况。 |
| 5. | At last one frame of reliability simulation platform are proposed to simulate reliability level of circuits with degradation and other failure modes . it will help to take full use of test data and empirical models to predict the trend of system failure rate
提出能源系统可靠性模拟平台设计框架，该平台可用于模拟在参数漂移及其它失效模式下电路系统的可靠性水平，其特点是能够充分利用试验数据与经验模型分析系统失效率变化趋势。 |
| 6. | It shows that the degradation effects of fatigue and corrosion have important influence on the safety of ship structure , especially after the ship has put into service for 10 years . and the detailed inspection should be done at this time to maintain the reliability level of ship hull girder
计算结果表明：疲劳裂纹和环境腐蚀在船舶服役10年之后对船体梁可靠性有显著的影响，此时开展详细的船体结构检验对保证船舶营运的安全性具有重要意义。 |
| 7. | If the structure reliability of the used bridge is analyzed and its current and future reliability level on bearing capacity is presented , it will profit the highway development and administration department in making an economic and reasonable decision on the maintenance of the used bridge
对在用桥梁的结构性能进行可靠性分析，给出其现在以及今后服役期内的承载力可靠度水平，有利于公路建设和决策部门对桥梁的维护工作做出经济合理、切实有效的抉择。 |
| 8. | Based on probability statistics and structure reliability theory , a method of calculating the durability period and reliability probability of reinforced concrete exposed to chloride environments is presented . the target reliability level that the time of reinforcement initial corrosion in concrete structure exposed to chloride environments is proposed in this paper . a method of predicting service life of concrete structure exposed to chloride environments is given in this paper
建立了氯腐蚀环境下混凝土结构中钢筋开始锈蚀的条件和耐久性极限状态方程以及氯腐蚀环境下混凝土结构的寿命评估准则；以结构可靠度理论为基础，提出了混凝土结构的耐久性分析方法和寿命预测方法，给出了氯腐蚀环境下混凝土中钢筋不发生锈蚀的目标可靠指标，并结合一具体工程进行了耐久性评估。 |
| 9. | Based on the illustration of the using state of industrial buildings and the present appraisal method of structural reliability , the paper indicates the relationship between structural state and reliability , by analyzing the feature rule and reason of scathe and demolish of steel workshop , and puts forward the basic view of appraisal method of structural reliability . structural state is the external performance of structure ; the decline of structural performance and decrease of the reliability level are shown as the alter of structure state . therefore , the analysis and appraisal of structure state can evaluate the structural reliability indirectly
论文在阐述我国工业建筑使用状况和现有结构可靠性评定方法的基础上，通过分析钢结构厂房损伤、破坏的特点、规律和原因，指出结构状态与其可靠性之间的关系，并由此提出结构可靠性的状态评定方法的基本思想：结构状态是结构的外在表现，结构性能的衰退和可靠度水平的降低一般都可表现为结构状态的变化，因此通过对结构状态的分析和评价，可间接地对结构的可靠性作出评定。 |
| 10. | This method which both considered influence of uncertainty factors among structure parameters and satisfied prescribed main cable reliability level was used to get inverse main cable safety factors through target reliability indexes , main cable safety factors of suspension bridges with main span ranging from 2000 m to 5000 m were estimated using the proposed method
该方法通过给定结构的目标可靠度指标反求主缆安全系数，计算出的主缆安全系数既考虑了结构参数中不确定因素的影响，又满足了预先给定的主缆可靠度水平。 |
