摘要
针对霍童溪大桥的墩身和基础的施工,结合地质资料和栈桥的通行功能,设计了施工栈桥的结构方案,包括跨度布置和横断面布置。通过充分考虑栈桥贝雷主梁和上、下横梁的实际工作状态,科学考虑栈桥结构细部的处理,建立了栈桥的整体仿真模型。计算结果表明栈桥的强度和刚度能够满足工程荷载的需求,并且能够反映栈桥的实际工作状态;栈桥桥面板体系的受力也满足要求。经过实际测量,栈桥的实际位移与仿真分析计算结果高度吻合。该栈桥方案的设计能够为相似栈桥的设计计算提供借鉴。
With the construction of the pier bodies and foundation,the geological data and the passing functions of the jetty for the construction of the Huotongxi Bridge taken into account,designed in the paper is the structural scheme for the bridge,which includes the arrangement of the different spans and the layout of different cross-sections.Upon the basis of giving full consideration to the actual working states of the main Bailey beam,and the upper and lower lateral beams of the jetty,and scientifically considering the careful treatment of every important part of the jetty,an integral simulating model for it is established in the paper.The result of the simulating calculations shows that the jetty can meet the workload requirements in both strength and rigidity,and the model can truly reflect the actual working state of the jetty.Besides,the stress of the deck system of the jetty can also meet the requirements.Through the actual measurements,it is found that the actual displacement of the jetty is in high agreement with the calculated results of the simulating calculations.The design of the jetty may serve as a useful reference for the design and calculations of other similar jetties in the future.
作者
赵涛
ZHAO Tao(The Framing Branch Company of the 5th Engineering Co. Ltd. of the 18th Bureau Group of China Railway,Tianjin 300450,China)
出处
《国防交通工程与技术》
2017年第1期46-49,共4页
Traffic Engineering and Technology for National Defence
关键词
施工栈桥
方案设计
仿真分析
jetty for construction
scheme design
simulation analysis
