响应面法计算结构的可靠度.已知极限状态方程，变量服从对数正态分布，变量均值和标准差已知。-Response surface methodology to calculate the reliability of structures known to limit state equation, variables lognormal distribution, the mean and the standard deviation is known variables.

基于结构可靠度中的响应面法的matlab程序，求解边坡的极限状态方程和可靠概率-Based on structural reliability of the response surface method matlab program, the slope of the limit state equation solving and reliable probability