桥面结构形式对网状吊杆系杆拱桥性能的影响  

Effect of Deck Structure on Performance of Network Tied-Arch Bridge

作　　者：殷峥琪 苏庆田[1,2] 邵长宇 汤虎 戴昌源 YIN Zhengqi;SU Qingtian;SHAO Changyu;TANG Hu;DAI Changyuan(Department of Bridge Engineering,Tongji University,Shanghai 200092,China;Shanghai Engineering Research Center of High Performance Composite Bridges,Shanghai 200092,China;Shanghai Municipal Engineering Design Institute(Group)Co.,Ltd.,Shanghai 200092,China)

机构地区：[1]同济大学桥梁工程系,上海200092 [2]上海高性能组合结构桥梁工程技术研究中心,上海200092 [3]上海市政工程设计研究总院(集团)有限公司,上海200092

出　　处：《结构工程师》2025年第1期11-16,共6页Structural Engineers

摘　　要：为了明确不同桥面结构形式的网状吊杆系杆拱桥的性能差异,针对300m跨径桥梁,分别采用混凝土桥面板、正交异性钢桥面板、钢混组合桥面板等3种桥面结构形式进行试设计研究。采用有限元软件ANSYS建立3种试设计方案模型,对比其整体受力性能,同时统计材料用量,引入材料单价指标,对比其经济性能。结果表明:对于主跨300m的网状吊杆系杆拱桥,混凝土桥面板具有较好的经济性能;相比正交异性钢桥面板,采用混凝土桥面板或者钢混组合桥面板可以在一定程度上提高结构刚度;不同桥面结构形式网状吊杆系杆拱桥的结构内力和应力沿纵桥向的分布规律较为相似,结构恒载轴力和成桥吊杆力大小差别显著。In order to determine the performance difference of the network tied-arch bridge with different deck structure,three types of bridge deck structure,namely concrete deck,orthotropic steel deck and steel-concrete composite deck,are used to design and study the 300 m span bridge.The finite element software ANSYS was used to establish three trial design scheme models,and compare their overall mechanical performance.At the same time,the amount of materials was counted,and the unit price of materials was introduced to compare their economic performance.The results show that the concrete deck has better economic performance for the 300 m network tied-arch bridge.Compared with orthotropic steel deck,concrete deck or steel-concrete composite deck can improve the structural stiffness to a certain extent.The distribution of internal force and stress along the longitudinal direction of the network tied-arch bridge is similar in different types of bridge deck,while the axial force of the structure and cable force at the bridge completion stage is significantly different.

关 键 词：桥面板 结构形式 网状吊杆 系杆拱桥 力学性能 经济性能 

分 类 号：TU997[建筑科学—市政工程]