基于均匀设计和神经网络的拱桥可靠度计算

近二十年来大跨度钢管混凝土拱桥在我国得到广泛的应用,但目前基于可靠度理论的拱桥设计方法尚未完全建立,拱桥结构的可靠度评估和计算方法还有许多问题亟待研究。提出一种基于均匀设计和神经网络的结构可靠度计算方法,通过使用ANSYS和MATLAB实现该方法,并通过经典算例证明该方法实用有效。用该方法对广州解放大桥进行了可靠度计算,证明该方法能应用于求解实际结构构件或体系的可靠度。

Reliability calculation of arch bridge based on the Uniform Design and Artificial Neural Network

Over the past two decades,long-span concrete-filled steel tubular (CFST) arch bridges have been widely built in China.But the design guidance and specification based on the reliability theory have not yet been established,and the approach for the reliability assessment and evaluation of arch bridges still need to be studied further.An approach for the reliability analysis and assessment is presented which is derived from the uniform design experiment method and artificial neural network(ANN) theory.The meth...