可靠度

For the dado of the cast in pile pile with man made hole, a reliability model is set up based on the analysis of its bearing capacity; and a reliability design is carried out on the dado in the light of engineering example.

通过对人工挖孔桩护壁承受外界作用的分析，建立孔桩护壁的可靠度模型。结合工程实例，对孔桩护壁进行了可靠度设计，为目前孔桩护壁的设计提出一个合理的方法

It was necessary to consider the important effect of dependency on the result of reliability of system.

在体系可靠度的计算中涉及到相关性问题，它对体系可靠度的分析结果产生重要影响，需要加以考虑。

A theoretical computation equation for determining air way reliability during mine fire is put forward. The failure mode of air way during mine fire is analyzed. A disjoint minimal path set algorithm based on network simplification technology and truncation error theory for computing the reliability of large scale ventilation network during mine fire is put forward.

提出了矿井火灾时期风路可靠度的理论计算式，分析了矿井火灾时期风路失效模式，提出了适合计算大型通风系统在火灾时期可靠度的"基于截断误差理论和网络简化技术的不交化最小路集算法"。

By calculating the equivalent loading,the process of strength degradation under random loading was transformed into a process under the deterministic loading,and the relationship between reliability andtimes of loading action was obtained.Besides,the time-dependent reliability models under multi-loadings were established by analyzing the relationship between action times of different loadings and time.

该模型通过计算当量载荷，将随机载荷作用下的强度退化过程等效为确定性载荷作用下的退化过程，得到零件可靠度与载荷作用次数的关系，在此基础上，通过分析不同载荷出现次数与时间的关系，得到多个载荷共同作用下零件可靠度随时间的变化规律。

Based on the simple global noise source, take the noise which is cared by people into account. Get the sound pressure level after processing the noise sources sound pressure. Educe the allowable value of the upper limit, through linking to the sound pressure level which is permitted. Taking the value into the reliability modals established before, found the diplex integral mathematics modals that is restricted.

考虑约束因素的影响，引入人们所关心的噪声，以结构简单的球形声源为基础，在对声源声压做了相对处理后，得到其声压级，结合许用声压级指标，求得许用频率上限值，将该值代入已建立的防共振模糊可靠度模型，建立有约束防共振模糊可靠度计算的双重积分数学模型。

The results of parameter analyses show that, the direct numerical integration method is much more accurate than JC method when the variables are nonlinear and have large variability.

因此本文依据直接积分的基本思想，通过理论分析解决直接积分法的几个关键问题，编制了能应用于可靠度计算的计算机程序，通过试题检验证明该法较JC法具有更高精确性，可用于结构系统可靠度计算。

Consideration reinforcing steel bar is rustily the influence fighting force to concrete structure, according to our country active structure reliability designs a standard to design a principle, put forward a ferroconcrete to build the practical method that reliability of structural intended performance devises.

梗概： 考虑钢筋锈蚀对混凝土结构的抗力影响，根据我国现行结构可靠度设计规范设计原理，提出了钢筋混凝土建筑结构预期使用期可靠度设计的实用方法。

In order to compute the failure probability of structural systems for stability of gravity retaining walls, firstly, two performance functions against overturning and sliding of gravity retaining walls were established. Then, the first order second moment theory in structural reliability analysis, i.e., the checking point method was introduced to compute the two failure modes respectively, and two corresponding reliability indexes could be obtained.

为了计算重力式挡土墙稳定性的结构体系失效概率，首先分别建立重力式挡土墙结构抗倾覆稳定性和抗滑移稳定性的功能函数，然后引入结构可靠度分析一次二阶矩法中的验算点法分别对两种失效模式进行计算，得出两个相应的可靠度指标。

Then,the first order second moment theory in structural reliability analysis,i.e.,the checking point method was introduced to compute the two failure modes respectively,and two corresponding reliability i...

将两种失稳模式视为串联系统，由逐步等效平面法计算结构体系可靠度指标，最后由结构体系可靠度指标计算出该挡土墙稳定性的结构体系失效概率。

In order to analyse the structural reliability by stochastic finite element method rapidly and efficiently, a method combined with finite element method and gradient optimum algorithm based on ANSYS is presented when referring to the geometric interpretation of structural reliability index.

为快速、高效地进行基于随机有限元法的结构可靠度分析，从结构可靠性指标的几何意义出发，提出了在ANSYS平台上采用有限元法和梯度优化算法相结合的方法进行可靠度分析的构想，对ANSYS进行二次开发实现了该方法。

Fancy gold-plated dangling earrings with facetted White Opal crystals.

花式镀金悬垂耳环与facetted白欧泊水晶。

This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.

本文选取石家庄市初中生物教师作为研究对象，运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查，调查结果发现，石家庄市初中生物教师这一群体普遍存在职业倦怠，情感枯竭程度偏高，成就感偏低，去个性化程度最为严重。