连续刚构桥双肢薄壁高墩施工阶段单墩稳定性影响因素分析OA
Analysis of Stability Factors of Single Pier During the Construction of Double Limb Thin-walled High Piers in Continuous Rigid Frame Bridges
为解决大跨度连续刚构桥双肢薄壁高墩稳定性问题,以新站特大桥为工程背景,针对该桥最高双肢薄壁墩(墩高114 m),通过Midas/Civil软件建立空间有限元模型,进行了数值模拟稳定性分析;探讨了墩身混凝土强度,桥墩高度,墩身截面尺寸、截面空心率和系梁位置、数量等设计要素,对连续刚构桥的双肢薄壁墩单墩的线性稳定性影响.分析结果表明:在最高裸墩状态下,桥墩的稳定性主要由自重和施工荷载控制,顺桥向和横桥向的风荷载对高墩的稳定性影响很小;桥墩的高度、系梁…查看全部>>
In order to solve the stability problem of double-limb thin-walled high pier of long-span continuous rigid frame bridge,Xinzhan Bridge is taken as an example.Aiming at the highest double-limb thin-walled pier(pier height of 114 m)of the bridge,the spatial finite element model is established by Midas/Civil software to analyze the stability of numerical simulation;The influence of design factors such as concrete strength of pier body,pierheight,size of outer s…查看全部>>
盛伟兵;宁珍
江西建设职业技术学院,江西南昌 330200江西建设职业技术学院,江西南昌 330200
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刚构桥高墩双肢薄壁墩线性稳定性影响因素
rigid frame bridgehigh pierdouble-limb thin-wall pierlinear stabilityinfluencing factors
《市政技术》 2024 (1)
55-59,67,6
江西省教育厅科学技术研究项目:高墩大跨连续刚构桥全过程稳定性分析研究(GJJ2207304)
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