南京南高架站桥梁设计.pdf

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桥梁建设2010年第1期
文章编号:1003-4722(2010)01-0052~03
南京南高架站桥梁设计
雷素敏
中铁第四勘察设院集团有服公司,湖北武汉430063)
摘要:南京南站有3个车场、15个站台、28条铁路线,根据其使用功能和规模,分站房区正
线桥、站房外桥梁和站台梁设计3个部分,进行高架站挢梁设计。站房区正线桥设计为3座独立的
双线桥梁,采用钢觞混凝士连刚构结构,孔跨布置为2×21m+3×24m+2×21m;站房外桥梁
采用14座独立的双线桥,为3×21m的钢筋混凝土遶续刚构;站台梁采用钢觞混凝土结构,为防
止站台在地震作用下落梁、减少火车运行时对站台梁的振动作用,每孔站台梁下设角钢防落粱,采
用减震支座。选择8种车型,160~350km/h、375~420km/h2种列车速度范对京沪正线桥梁
进行动力分析,結果表明桥梁动力性能、车体振动加速度、脱轨系数、减戴率均满足指标。
关键词:高架结构;钢混凝土结构,连续梁;刚构桥;桥梁设计
中图分类号:U442.5
文献标志码:A
Bridge Desing for Nanjing South Elevated Railway Station
ILE Su-min
China Railway Tiesiyuan Survey and Design Institute Group Co, Ltd, Wuhan 430063, China)
Abstract: There are 3 marshalling yards, 15 platforms and 28 railway lines to be arranged
the Nanjing South Railway Station. In accordance with the service functions and scale of the Sta-
tion, the design of elevated bridges for the Station is divided into 3 parts of the bridges for the
main railway lines inside the Station building, the bridges outside the building and the bridges
serving as platforms. The bridges for the main lines are the 3 independent double-track bridg
that are designed as the reinforced concrete (RC) continuous rigid-frame structures each with
:pan arrangement 2 X 21 m+3X 24 m+ X21 m, the bridges outside the building are the 14 inde
pendent double-track bridges that are also designed as the RC continuous rigid-frame structures
each with span arrangement 3 X 21 m and the bridges serving as platforms are designed as the RC
structures. To prevent the beams of the platforms from dropping off in the event of earthquake
and to reduce the vibration caused by the trains to the beams, the angle bars that can prevent the
beams from dropping off are to be arranged underneath the beams and the anti-vibration bearings
are to be provided. 8 types of the locomotives to run within the speed of 160--350 km/h and 375
2-420 km/h are used to conduct the dynamic analysis of the bridges on the main lines of Beijing
Shanghai High-speed Railway. The results of the analysis show that the dynamic behavior of all
bridges, the acceleration of train vibration, the derailing coefficients and vibration reducing ratio
can all mect the designed indices.
Key words: elevated structure; reinforced concrete structure; continuous beam; rigid-frame
ridge; bridge desig
收稿日期:2C09-11-16
作者箇介;露索敏(1968-),女,高皱工程帅,1992年毕业于西南交選大学土建结构专业,工学学士(1lm2007@163.com)。