【摘要】 针对预应力混凝土连续刚构悬臂施工控制中的参数敏感度问题,基于敏感性分析的基本原理,利用数值仿真模型,分析了材料容重、弹性模量、环境湿度、预应力管道偏差、施工荷载等因素对这类桥梁成桥线形的影响程度。详细探讨了成桥线形对这些影响因素的敏感度。相关结论可为同类桥梁的设计和施工提供参考。更多还原

【Abstract】 Aiming at the parameter sensitivities of the cantilever construction control of a prestressed concrete continuous rigid frame bridge,this paper analyses the influence of several factors on the shape of the bridge by means of the sensitivity theory and the numerical models.The factors mentioned above are unit weight,modulus of elasticity,ambient humidity,deviation of prestress duct,construction load etc.The parameter sensitivity of the bridge shape is discussed in detail.The conclusions herewith can be used as reference to the design and construction of the similar bridges.更多还原