摘要
针对独柱墩桥梁在汽车偏心荷载作用下,易造成梁体倾覆,带来较大的安全隐患这一问题,选用在墩顶增设钢盖梁、墩身加钢套筒,变单支承为多支承的加固方案,依据桥涵设计规范,采用桥梁结构专业分析软件《桥梁博士》建立施工阶段模型,对桥墩加固前后抗倾覆性能进行验算。通过加固施工和模型验算得知,该加固方案可加强桥梁结构的抗扭变形能力,提高桥梁的抗倾覆性能。
In view of the problem that the single-column pier bridge is easy to cause the girder overturning under the automobile eccentric load,which brings the bigger hidden danger of safety,the author chooses to add the steel cover beam at the top of the pier and the steel sleeve on the pier body,according to the design criterion of bridge and culvert,the construction stage model is established by Dr.Bridge with the professional analysis software of bridge structure,and the anti-overturning performance of bridge pier before and after reinforcement is checked and calculated.Through reinforcement construction and model checking,it is found that this reinforcement scheme can strengthen the torsional deformation capacity of the bridge structure and improve the anti-overturning performance of the bridge.
作者
孙鹏旭
SUN Peng-xu(Shanxi Communications New Technology Development Co.,Ltd.,Taiyuan,Shanxi 030006,China)
出处
《黑龙江交通科技》
2023年第10期60-63,68,共5页
Communications Science and Technology Heilongjiang
关键词
独柱墩
倾覆
加固
钢盖梁
single column pier
overturning
reinforcement
steel cap beam
