城市桥梁装配式人行景观栏杆设计

Design of Assembled Pedestrian Landscape Railings for Urban Bridges

随着国家对装配式建筑结构的推广和人们对于桥梁景观要求的提升,桥梁人行栏杆摆脱了常规保守形式,呈缤纷多样的发展态势。在追求美观性的同时,如何保证人行栏杆的安全性和可装配性成为当前迫切需要解决的难点,因此有必要对城市桥梁人行景观栏杆的设计进行研究。根据当前最新规范并结合2021年度陕西省省标办标准图项目——人行道装配式栏杆标准设计,选择一种代表性装配式人行栏杆,对其进行了荷载加载和失效模式判定的分析,并采用midas Civil有限元软件建立梁板实体模型,模拟荷载加载模式对其立柱和扶手进行了挠度分析和强度分析,并根据规范对装配式连接部位进行了连接分析。为城市桥梁装配式人行景观栏杆的设计方法和一般设计流程提供了借鉴。

With the promotion of prefabricated building structure by the state and the improvement of people’s requirements for bridge landscape, the pedestrian railing of bridge has got rid of the conventional conservative form and presented a colorful and diverse development trend.While pursuing aesthetics, how to ensure the safety and assembly of pedestrian railings has become an urgent difficulty to be solved.Therefore, it is necessary to study the design of pedestrian landscape railings of urban bridges.In this paper, according to the current latest specifications and combined with the standard design of sidewalk fabricated railing, the standard drawing project of Shaanxi provincial standard office in 2021,one representative fabricated pedestrian railings is selected, the load loading and failure mode determination are analyzed, and the beam slab solid model is established by midas Civil finite element software, The deflection and strength of the column and handrail are analyzed by simulating the load loading mode, and the connection of the fabricated connection parts is analyzed according to the code.It provides a reference for the design method and general design process of assembled pedestrian landscape railing of urban bridge.