独塔斜拉桥主塔锚固区空间仿真分析与光弹试验  

Space Simulating Analysis and Photoelastic Experiment of Main Pylon Anchorage Zone of Single-pylon Cable-stayed Bridge

作　　者：华龙海[1] 熊刚[1] 

机构地区：[1]天津市市政工程设计研究院,天津市300051

出　　处：《城市道桥与防洪》2014年第6期71-74,105,共5页Urban Roads Bridges & Flood Control

摘　　要：为详细地掌握天津新建海河独塔斜拉桥主塔锚固区在大量大吨位斜拉索的张拉力作用下的复杂应力状态,进行了三维应力分析和1∶50平面光弹模型实验和1∶60三维光弹模型试验。定性和定量地掌握该结构部位复杂应力的分布,为结构设计优化提供了理论基础和依据,保证了重要结构的安全和使用性能,通过有限元计算和光弹性模型实验,可为优化设计、调整设计构造提供科学依据。对该桥主塔结构受载性能的研究,不仅能使本桥主塔设计更合理,对今后类似桥梁主塔的设计工作也具有一定的指导意义。In order to master the complex stress status of the main pylon anchorage zone of the Hai River single-pylon cable-stayed bridge newly built in Tianjin under the tension effect of large-tonnage stayed cables,the article introduces the three-dimensional stress analysis, 1∶50 plane photoelastic model experiment and1∶60 three-dimensional photoelastic model experiment. The qualitative and quantitative control of the complex stress distribution of this structural position can provide the theoretical basis for the structural design optimization and can guarantee the safety and using performance of the important structures. The finite element calculation and photoelastic model experiment can provide the scientific basis for the optimization of design and the adjustment of design structure. The study of the main pylon structure loaded property of this bridge not only makes the design of its main pylon more reasonable, but also has a certain guiding meaning for the design of the similar bridge pylons.

关 键 词：独塔斜拉桥 主塔锚固区 三维仿真分析 平面光弹模型实验 三维光弹试验 

分 类 号：U446[建筑科学—桥梁与隧道工程]