摘要
基于某双塔斜拉-连续协作体系斜拉桥,对桥梁的动力特性进行分析。为了证明协作体系桥的可行性和优势,通过Midas Civil软件并施加反应谱法,从变形和内力2个角度来模拟分析。研究数据表明:在同样的条件下,协作体系桥的挠度比斜拉桥小,能够提高结构刚度的有效性;协作体系桥的主梁承受的轴力较斜拉桥大幅度减少,使设计主梁的方案选择范围增大。与斜拉桥比,协作体系桥塔根弯矩小,协作体系的受力优于斜拉桥。
Based on the cable-stayed bridge of a specific project,a scheme of"twin-tower cable-stayed-continuous collaborative system cable-stayed bridge"is proposed,which can give full play to the advantages of two bridge structures.Therefore,in order to prove the feasibility of the collaborative system bridge,the Midas Civil software and the reaction spectrum method are applied to simulate the analysis from the perspectives of deformation and internal force.The research data shows that under the same conditions,the deflection of the collaborative system bridge is smaller than that of the cable-stayed bridge,which can improve the effectiveness of the structural stiffness;the axial force borne by the main girder of the collaborative system bridge is greatly reduced compared with the cable-stayed bridge,which increases the range of scheme selection for the design of the main girder.
作者
徐凌云
赵青
XU Lingyun;ZHAO Qing(School of Civil Engineering,Anhui Jianzhu University,Hefei 230601,China)
出处
《兰州工业学院学报》
2022年第2期37-41,68,共6页
Journal of Lanzhou Institute of Technology
基金
省级一流本科专业建设(L20211)。
关键词
斜拉-连续梁协作体系
斜拉桥
动力特性
反应谱法
cable-stayed-continuous beam collaboration system
cable-stayed bridge
dynamic characteristics
reaction spectroscopy
