客运专线拱桥承台设计方法的探讨  

Research on Design Method of Bearing Platform of Arch Bridge on Railway Passenger Dedicated Line

作　　者：李宇[1] 

机构地区：[1]铁道第三勘察设计院集团有限公司桥梁处,天津300142

出　　处：《铁道标准设计》2013年第8期81-83,共3页Railway Standard Design

摘　　要：为解决客运专线拱桥承台设计无明确铁路规范可依这一问题,通过建立桩-土-承台结构相互作用模型的方法,阐述桩-土-承台结构在上部结构作用下如何计算承台的应力和配筋,通过与已有规范方法比较,论证了桩-土-承台相互作用模型的配筋结果更加安全,为拱桥承台设计提供了有益的参考。At present, there is no definite railway standard that can be relied upon for the design of bearing platform of arch bridge of railway passenger dedicated line. To solve this problem, the paper, by establishing the interaction model among piles, soils and bearing platforms, illustrates how to calculate the stresses and reinforcing bars of the bearing platform with above-mentioned interaction model under the action of upper structure. Furthermore, the paper expounds and proves that ： the result of reinforcing bars obtained from above-mentioned interaction model is more secure than the result obtained from the existing standard method. This research will be useful for the design of bearing platform of arch bridge in future.

关 键 词：客运专线 拱桥承台 桩-土-承台模型 设计 

分 类 号：U238[交通运输工程—道路与铁道工程] U443.25[建筑科学—桥梁与隧道工程]