•  
  •  
 

Abstract

In order to clarify the influence of design parameters on the mechanical behavior of a cable-stayed bridge of a floating system，a finite element model of the bridge was established by using the finite element analysis software MIDAS/Civil based on a single-tower double-cable plane steel-concrete composite beam cable-stayed bridge with full floating spatial frame.The sensitivity of parameters such as temperature effect，secondary dead load，and support system in the completed bridge state was analyzed and compared with the semi-floating system of the bridge.The results show that temperature and secondary dead load have a significant impact on the deflection and stress of the main beam.Overall，the sensitivity of the deformation and stress of the main beam of the full floating system to various parameters is lower than that of the semi-floating system.After the structural system is converted from full floating to semi-floating，the first-order natural frequency increases from 0.38 Hz to 1.09 Hz，and the overall stiffness of the structure is significantly improved.Under seismic excitation，the overall displacement of the full floating system is greater than that of the semi-floating system，but the bending moment of the tower root structure decreases.

Publication Date

12-17-2024

DOI

10.14048/j.issn.1671-2579.2024.06.018

First Page

168

Last Page

175

Submission Date

February 2025

Reference

[1]张亚海 ,朱斌 ,郭宝圣 ,等.大跨钢箱梁斜拉桥施工期结构参数敏感性分析 [J].中外公路 ,2020 ,40(5): 70-75.ZHANG Yahai ,ZHU Bin ,GUO Baosheng ,et al .Structural parametric sensitivity analysis of long-span cable-stayed bridge with steel box-girders during construction [J].Journal of China & Foreign Highway ,2020 ,40(5): 70-75.
[2]肖春名 ,廖盛荣 ,赵晨光 ,等.V字形矮塔斜拉桥结构参数敏感性分析研究 [J].公路 ,2023 ,68(1): 187-193.XIAO Chunming ,LIAO Shengrong ,ZHAO Chenguang ,et al.Sensitivity analysis of structural parameters of V-shaped low-pylon cable-stayed bridge [J].Highway ,2023 ,68(1): 187-193.
[3]过黄喜 .钢‒混凝土混合梁三塔斜拉桥结构参数敏感性分析 [J].公路与汽运 ,2022 (4): 86-88,138.GUO Huangxi .Sensitivity analysis of structural parameters of steel-concrete mixed beam three-tower cable-stayed bridge [J].Highways & Automotive Applications ,2022 (4): 86-88,138.
[4]杨如刚，陈博，韩冰 .大跨叠合梁斜拉桥主梁施工控制误差传播分析 [J].中外公路 ，2023 ,43（5） ：148-155.YANG Rugang ，CHEN Bo ，HAN Bing .Analysis of error propagation in construction control of main beams of large-span composite beam cable-stayed bridges [J].Journal of China & Foreign Highway ,2023，43(5):148-155.
[5]涂光亚，石洋，邹磊 .大跨度钢混组合梁斜拉桥钢主梁截面参数对成桥状态主梁受力敏感性分析 [J].中外公路 ，2022 ,42（1） ：108-114.TU Guangya ，SHI Yang ，ZOU Lei .Sensitivity analysis of section parameters of steel main girder of long-span cable-stayed bridge with steel-concrete composite girder on mechanical behavior of main girder in completion state [J].Journal of China & Foreign Highway ,2022，42(1):108-114..
[6]张丰 ,颜东煌 ,陈常松 .大跨度组合梁斜拉桥成桥状态参数敏感性分析 [J].交通科学与工程 ,2021 ,37(2): 91-97.ZHANG Feng ,YAN Donghuang ,CHEN Changsong .Parameter sensitivity analysis of the long-span composite girder cable-stayed bridge in the fini shed bridge state [J].Journal of Transport Science and Engineering ,2021 ,37(2): 91-97.
[7]邬晓光 ,杜仕朝 ,康春霞 .双钢拱塔斜拉桥参数敏感性分析[J].公路 ,2016 ,61(9): 143-148.WU Xiaoguang ,DU Shizhao ,KANG Chunxia .Parameters sensitiveness analysis of special shaped cable stayed bridge with steel arch tower [J].Highway ,2016 ,61(9): 143-148.
[8]唐启 .泉州湾跨海大桥钢混组合梁施工控制参数敏感性分析 [J].世界桥梁 ,2016 ,44(5): 57-61.TANG Qi .Sensitivity analysis of construction control parameters of steel-concrete composite girder of Quanzhou Bay Sea-Crossing Bridge [J].World Bridges ,2016 ,44(5): 57-61.
[9]佟志峰，熊雷，刘小奇，等.单索面独斜塔斜拉桥桥塔施工关键设计参数影响研究 [J].中外公路 ，2022 ,42（4） ：47-52.TONG Zhifeng ,XIONG Lei ,LIU Xiaoqi ,et al .Study on key design parameters of the constructional safety of the leaning single-tower cable-stayed bridges [J].Journal of China & Foreign Highway ,2022，42(4):47-52.
[10]刘增武 ,辛景舟 ,周水兴 ,等.异形索塔斜拉桥参数敏感性分析 [J].中外公路 ,2020 ,40(5): 76-80.LIU Zengwu ,XIN Jingzhou ,ZHOU Shuixing ,et al .Analysis of parametric sensitivity of cable-stayed bridge with shaped single tower [J].Journal of China & Foreign Highway ,2020 ,40(5): 76-80.
[11]杨懋 ,缪长青 ,王旭东 .斜弯独塔混合梁斜拉桥参数敏感性分析 [J].科学技术与工程 ,2022 ,22(28): 12642 -12650 .YANG Mao ,MIAO Changqing ,WANG Xudong .Parameter sensitivity analysis of the inclined curved single tower hybrid girder cable-stayed bridge [J].Science Technology and Engineering ,2022 ,22(28): 12642 -12650 .
[12]赵体波 ,张武盛 ,荣峤 ,等.波纹钢腹板矮塔斜拉桥结构静动力分析 [J].铁道建筑 ,2020 ,60(7): 6-9.ZHAO Tibo ,ZHANG Wusheng ,RONG Qiao ,et al .Static and dynamic analysis on extradosed cable-stayed bridge structure with corrugated steel web [J].Railway Engineering ,2020 ,60(7): 6-9.
[13]艾伏平 ,徐俊 ,廖崇庆 .郑东新区龙湖内环路跨北引水渠桥的方案设计 [J].城市道桥与防洪 ,2016 (7): 140-143,17.AI Fuping ,XU Jun ,LIAO Chongqing .Scheme design of ring road crossing north water diversion canal bridge within Longhu of Zhengdong new district [J].Urban Roads Bridges & Flood Control ,2016 (7): 140-143,17.
[14]张文学 ,陈盈 ,寇文琦 ,等.基于反应谱法的低重心斜拉桥判定简化计算 [J].中南大学学报 (自然科学版 ),2018 ,49(7): 1793 -1798 .ZHANG Wenxue ,CHEN Ying ,KOU Wenqi ,et al .Simplified criterion for low gravity center cable-stayed bridge based on response spectrum [J].Journal of Central South University (Science and Technology ),2018 ,49(7): 1793 -1798 .
[15]白国良 ,史庆轩 ,杨应华 ,等.咸阳渭河大桥斜拉桥结构地震反应分析 [J].西安建筑科技大学学报 (自然科学版 ),2000 ,32(4): 329-333.BAI Guoliang ,SHI Qingxuan ,YANG Yinghua ,et al .Analyses on seismic response of the main bridge structure over the Weihe River in Xianyang [J].Journal of Xi ’an University of Architecture & Technology ,2000 ,32(4): 329-333.

Download

Share

COinS