结构可靠度编程2个大的例题，以及对于的作业电算MATLAB代码-The structural reliability programming two examples, as well as for the job Computing MATLAB code

结构功能函数已知、各变量分布类型以及统计参数已知，计算结构可靠度(Structural reliability is calculated with known structural function, distribution types of variables and statistical parameters.)