[1]王浩宇,淳庆.钢筋混凝土双曲拱桥计算模型修正方法[J].华侨大学学报(自然科学版),2021,42(4):450-456.[doi:10.11830/ISSN.1000-5013.202012005]
 WANG Haoyu,CHUN Qing.Modification Method of Calculation Model of Reinforced Concrete Double Curved Arch Bridge[J].Journal of Huaqiao University(Natural Science),2021,42(4):450-456.[doi:10.11830/ISSN.1000-5013.202012005]
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钢筋混凝土双曲拱桥计算模型修正方法()
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《华侨大学学报(自然科学版)》[ISSN:1000-5013/CN:35-1079/N]

卷:
第42卷
期数:
2021年第4期
页码:
450-456
栏目:
出版日期:
2021-07-20

文章信息/Info

Title:
Modification Method of Calculation Model of Reinforced Concrete Double Curved Arch Bridge
文章编号:
1000-5013(2021)04-0450-07
作者:
王浩宇 淳庆
东南大学 建筑学院, 江苏 南京 210096
Author(s):
WANG Haoyu CHUN Qing
School of Architecture, Southeast University, Nanjing 210096
关键词:
双曲拱桥 等效模型 钢筋混凝土 有限元模型 灵敏度分析 模态分析
Keywords:
double curved arch bridge equivalent model reinforced concrete finite element model sensitivity analysis modal analysis
分类号:
U448.221.2
DOI:
10.11830/ISSN.1000-5013.202012005
文献标志码:
A
摘要:
分别用实体单元和梁杆单元建立双曲拱桥有限元模型(FEM),对其进行静动力的分析,并将得到的挠度、固有频率、振型等与现场实测结果进行比较.结果表明:梁杆单元模型的计算结果精度要略差于实体单元模型,但计算效率大大高于实体单元模型;对梁杆单元模型进行合理的模型修正,可以使其静动力特性更加符合实际,计算结果与实测结果的误差由原先的24.6%降低至8.33%以内.研究结果可为钢筋混凝土双曲拱桥的建模方法、模型修正和科学计算提供依据.
Abstract:
The finite element models(FEM)of the double curved arch bridge were established using solid elements and beam elements respectively, the static and dynamic analysis of the two finite element models(FEM)was carried out. Comparing the deflection results, the natural frequency and vibration mode results of the FEM models with the field measured results, it is shown that: the accuracy of the beam element model is slightly lower than that of the solid element model, but the calculation efficiency is much higher than that of the solid element model. The reasonable model modification of the beam element model can make its static and dynamic characteristics conform more with the actual situation, and the error between the calculation results and the measured results is reduced from 24.6% to 8.33%, which basically meets the engineering accuracy requirements. The research results can provide the basis for the model modification and scientific calculation of reinforced concrete double curved arch bridge.

参考文献/References:

[1] CAVALAGIL N,GUSELLA V,SEVERINI L.The safety of masonry arches with uncertain geometry[J].Computers and Structures,2017,188:17-31.DOI:10.1016/j.compstruc.2017.04.003.
[2] PEPI C,GIOFFRE M,COMANDUCCI G.Dynaamic characterization of a severely damaged historic masonry bridge[J].Procedia Engineering,2017,199:3398-3403.DOI:10.1016/j.proeng.2017.09.579.
[3] 陈旭勇,樊建平,邓泽贤,等.异型截面拱加固法与优化设计研究[J].武汉理工大学学报,2009,31(5):70-74.DOI:10.3963/j.issn.1671-4431.2009.05.018.
[4] 白海强.浅析双曲拱桥主拱圈的维修加固[J].智能城市,2019,5(2):81-82.DOI:10.19301/j.cnki.zncs.2019.02.047.
[5] 刘敬涛.双曲拱桥检测与承载力研究[J].中国新技术新产品,2019(2):108-109.DOI:10.3969/j.issn.1673-9957.2019.02.057.
[6] 王晓阳,赵人达.危旧双曲拱桥的内力分析[J].工程设计CAD与智能建筑,2001(9):59-60.
[7] 张向东,赵志军.基于ADINA的敖汉双曲拱桥承载力验算[J].科学技术与工程,2007,7(4):488-491,496.DOI:10.3969/j.issn.1671-1815.2007.04.017.
[8] 刘加湾.既有双曲拱桥承载力评估及加固[J].市政技术,2003,21(1):25-29.DOI:10.3969/j.issn.1009-7767.2003.01.006.
[9] 漆泰生.有限元法在危旧双曲拱桥力学分析中的运用[J].科教文汇,2006(2):195-197.
[10] 徐家云,袁海庆,王吉.双曲拱桥加固新措施[J].武汉城市建设学院学报,2001,18(4):14-17.DOI:10.3969/j.issn.2095-0985.2001.04.004.
[11] 王敏强,王乐,张桓,等.空腹式双曲拱桥有限元分析与试验研究[J].武汉大学学报(工学版),2005,38(5):88-93.DOI:10.3969/j.issn.1671-8844.2005.05.020.
[12] 程章宏,顾萍.双曲拱桥有限元分析中建模方法研究[J].上海公路,2008(4):52-54,63.DOI:10.3969/j.issn.1007-0109.2008.04.013.
[13] 顾懋清,石绍甫.公路桥涵设计手册: 拱桥(上册)[M].北京:人民交通出版社,1994.
[14] 张玥.悬链线无铰拱的挠度计算[C]//第15届全国结构工程学术会议论文集.焦作:中国力学学会,2006:135-138.
[15] 陈伟卿.双曲拱桥维修加固方案研究及工程应用[J].福建交通科技,2018(5):95-97.
[16] 南京长江大桥工作总结小组,本刊编辑组.双曲拱桥[J].桥梁建设,1973(2):55-64.
[17] 中铁大桥(南京)桥隧诊治有限公司.南京长江大桥公路桥维修改造工程检测评估项目[R].南京:中铁大桥(南京)桥隧诊治有限公司,2016
[18] 乔雪梅.多种结构抗侧刚度计算方法对比[J].山西建筑,2017,43(9):39-40.DOI:10.3969/j.issn.1009-6825.2017.09.021.
[19] 宗周红,任伟新.桥梁有限元模型修正和模型确认[M].北京:人民交通出版社,2012.

备注/Memo

备注/Memo:
收稿日期: 2020-12-01
通信作者: 淳庆(1979-),博士,教授,博士生导师,主要从事历史建筑保护、结构安全评估、既有建筑加固改造和木结构技术等研究.E-mail:cqnj1979@163.com.
基金项目: 江苏省重点研发资助项目(BE2017717); 江苏省文物局科研资助项目(2017SK02)
更新日期/Last Update: 2021-07-20