The performance of highly nonlinear mapping for neural network was adopted to supply an explicit expression, so the method such as firstorder reliability method can be used again.

• 该方法利用神经网络的非线性映射能力，构造出显式表达的极限状态方程，从而可以很方便的引入一次二阶矩等其他基本求解方法进行结构可靠度分析。