| 1. | The failure mode and the design reference period of the steel rail are discussed , and the steel rail ' s performance function at limit state is established too
讨论了钢轨的失效模式和设计基准期，建立了钢轨极限状态方程的功能函数。 |
| 2. | The structure dynamic reliability of reference period may be different when monthly , yearly and the reference period maximum wind loads are adopted
同时还分析了采用月最大、年最大及设计基准期最大风荷载对设计基准期内结构抗风动力可靠度的影响。 |
| 3. | ( 5 ) a reliability analysis method for reinforced concrete frames under " server earthquake " is presented . the limit - state function is established by global damage indices
（ 5 ）基于现行建筑抗震设计规范，提出一种钢筋混凝土框架结构在设计基准期内的抗震可靠度分析方法。 |
| 4. | The occurring frequency of wind loads is assumed to obey the poisson distribution , then the method to calculate the dynamic reliability of structures resisting wind loads in reference period is obtained
同时在强风年出现次数满足泊松分布的前提下，得到设计基准期可靠度分析公式。 |
| 5. | In order to achieve the whole target that the design reference period is heightened from 50 years to 100 years , the old residential load data should be updated in a large scale , which is an important fundamental work to the study and design of structural reliability
适应于住宅结构设计基准期从50年提高到100年的总体攻关目标要求，大规模更新住宅荷载基础数据，是开展结构可靠度研究与可靠度设计的重要基础工作。 |
| 6. | With the coming of 50 years design grant time , the improvement of building design codes about many requirements and the quality problems in design , construction & many buildings " rebuild . the bottom poles " bearing capability of buildings is often found to be not enough
随着50年设计基准期的到来；建筑设计规范中各项要求的提高；设计、施工中的质量问题以及为数众多的建筑物改造工程，经常会出现建筑物的底层柱子承载力不满足。 |
| 7. | 4 . the seismic dynamic reliabilities of the nanjing changjiang tunnel were analyzed , and its dynamic reliable and disable probabilities under the 7 degree earthquake were obtained , by using the maximum stochastic responses and the first overstress mechanism . in the other hand , the probability of serious seismic intensity and its probability distribution function were calculated by analyzing the seismic degree , and the seismic dynamic reliable and disable probabilities of the tunnel in its design reference period were calculated by using the maximum stochastic responses and the first overstress mechanism
4采用最大随机地震响应和首超破坏理论分析了隧道抗震动力可靠度，得到了隧道在七度地震作用下的地震动力可靠概率和失效概率；并通过对南京长江隧址的地震危险性分析，得到了各烈度地震的发生概率及其概率分布函数，在此基础上，分别采用最大响应和首超破坏理论计算了隧道在设计基准期内的安全概率和失效概率。 |
| 8. | By the comparison of calculation result with the tests result , it was concluded that the method to calculate the year temperature difference and day temperature difference from weather data was feasible . by this method , it was got that the statistic parameters of combined temperature difference in base period and the reliability to different anti - crack index was calculated the combination of thermal effects and load effects was considering in this paper
对多年气象资料进行了统摘要浙江大学博士学位论文2003计分析，将其转化为结构的年温差和日温差，并与实测值进行了比较;在此基础上得到了设计基准期内的结构组合温差统计参数以及不同抗裂指标所对应的可靠度。 |
| 9. | The wind speed of reference period is determined by the local primitive data . a method is introduced that determine the wind speed of reference period through short - term wind data such as 3 to 5 years . it provides an evidence for wind - resistant design of the area that lack of long - term wind data
设计基准期参考风速的确定离不开原始风速资料，对缺乏长期风速资料的地区，给出了一种通过当地短期( 3 - 5年)的风速资料推算设计基准期参考风速的方法，为抗风设计提供依据。 |
| 10. | Statistic relationship between water / cement ratio and chloride diffusion coefficient was gained by experiment , based on which the influence of concrete cover , water / cement ratio and design reference period on structural reliability was discussed . 2 . there are two models provided to predict remaining service life
通过试验确定了水灰比与氯离子扩散系数之间的统计关系，在此基础上分析了海洋环境下混凝土保护层厚度、水灰比、设计基准期等与耐久性有关的非承载力因素对设计基准期内结构可靠性的影响。 |
