石拱桥极限承载能力分析  

Ultimate bearing capacity analysis of stone arch bridges

作　　者：陈荣刚 郑振飞[2] 

机构地区：[1]福州京福高速公路有限责任公司,福建福州350002 [2]福州大学土木建筑工程学院,福建福州350002

出　　处：《福州大学学报（自然科学版）》2002年第1期92-97,共6页Journal of Fuzhou University(Natural Science Edition)

摘　　要：应用极限平衡理论以石拱圈极限偏心距为约束条件、实际车辆活载的外加载荷系数为目标函数 ,建立了石拱桥极限承载能力分析的线性规划数学模型 .分析了一座石拱桥通过特大荷载问题 ,结果表明 ,本方法是简洁、可行的 .Based on the theory of ultimate equilibrium, a linear planning matiematic model of ultimate bearing capacity analysis of stone arch bridges has been established by applying ultimate eccentricity in stone arch ring as restraint function and load coefficient of live load as objective function. The method is tested to be easy and practical in analysis of load problem of stone arch bridges. This model provides a new concept for the analysis of bearing capacity of stone arch bridge.

关 键 词：石拱桥 极限分析 极限承载能力 线性规划 极限平衡理论 极限偏心距 

分 类 号：U448.32[建筑科学—桥梁与隧道工程] U441.2[交通运输工程—道路与铁道工程]