丰城市紫云大桥人非系统设计与研究

摘要:

丰城市紫云大桥跨江段采用双层桥梁,主梁上层布置双向六车道,下挂人非系统。为确保人非系统同时满足结构的受力及舒适度需求,采用有限元软件进行计算分析,通过设置构造节段缝、弱化节段端部竖杆的连接刚度、优化人非系统杆件施工步骤等措施来保证结构的受力满足要求,同时通过合理的手段验算结构振动的峰值加速度,保证人非系统的舒适度满足要求。

Abstract:

The river crossing section of Ziyun bridge in Fengcheng City is a double deck bridge with two-way six carriageway upper girder and pedestrian system lower girder. In order to ensure that the pedestrian system can meet the stress and comfort requirements of the structure at the same time, the finite element software is used for calculation and analysis. Measures such as setting the structural joints, weakening the connection stiffness of the vertical bar at the end of the segment, and optimizing the construction steps of the members of the pedestrian system are taken to ensure that the stress of the structure meets the requirements. At the same time, the peak acceleration of the structure vibration is checked by reasonable means to ensure the comfort of pedestrian system to meet the requirements.