墩高对不对称高墩连续刚构桥力学特性的影响

吉首大学学报（自然科学版） ›› 2023, Vol. 44 ›› Issue (1): 44-52.

墩高对不对称高墩连续刚构桥力学特性的影响

李家稳,宁若安,王建省

（北方工业大学土木工程学院，北京 100144）

出版日期:2023-01-25 发布日期:2023-04-10

Effect of Pier Height on Mechanical Properties of Asymmetric High Pier Continuous Rigid Frame Bridges

LI Jiawen,NING Ruo'an,WANG Jianxing

(School of Civil Engineering,North China University of Technology,Beijing 100144,China)

Online:2023-01-25 Published:2023-04-10
About author:LI Jiawen (1962-),male,was born in Beijing City,professor of School of Civil Engineering,North China University of Technology,mainly engaged in civil engineering,mechanical engineering research.
Supported by:
National Natural Science Foundation of China (11572001,51478004);2021 Undergraduate Course Ideological and Political Demonstration Course-Theoretical Mechanics （108051360022XN569）;2022 Great Innovation Project-Frame Bridge Structural Engineering Research （108051360022XN388）

摘要/Abstract

摘要：对不同墩高下的不对称高墩连续刚构桥成桥阶段进行了力学特性研究，获得了高墩连续刚构桥在不同墩高下的主梁和桥墩的内力、位移变形特性.研究结果表明，桥墩墩高的变化对主梁内力、主梁竖向位移、墩内力、墩横向位移均产生不同程度的影响，其中对跨中主梁竖向位移和墩顶剪力的影响较大，主梁竖向位移随着墩高的增大而增大，最大位移处平均增幅14.3%，墩顶主梁剪力随着墩高的增大而减小，平均变化率37.1%.

关键词： 墩高, 不对称, 高墩刚构桥, 连续刚构桥, 力学特性

Abstract: The mechanical characteristics of asymmetric high pier continuous rigid frame bridges with different pier heights were studied to obtain the internal force and displacement deformation characteristics of the main girders and piers of high pier continuous rigid frame bridges with different pier heights.The vertical displacement of the main girder increases with the increase of pier height,with an average increase of 14.3% at the maximum displacement,and the shear force of the main girder at the top of the pier decreases with the increase of pier height,with an average change of rate of 37.1%.

Key words: pier height, asymmetry, high pier rigid frame bridge, continuous rigid bridge, mechanical characteristics

李家稳, 宁若安, 王建省. 墩高对不对称高墩连续刚构桥力学特性的影响[J]. 吉首大学学报（自然科学版）, 2023, 44(1): 44-52.

LI Jiawen, NING Ruo'an, WANG Jianxing. Effect of Pier Height on Mechanical Properties of Asymmetric High Pier Continuous Rigid Frame Bridges[J]. Journal of Jishou University(Natural Sciences Edition), 2023, 44(1): 44-52.

参考文献

[1] ZHANG Daqi,GAO Ya.Stability Analysis of Long-Span Continuous Rigid Frame Bridge with High Single Hollow Pier[J].Highway,2021,66(8):137-141.
[2] TUBALDI E,SCOZZESE F,DE DOMENICO D,et al.Effects of Axial Loads and Higher Order Modes on the Seismic Response of Tall Bridge Piers[J].Engineering Structures,2021,247:113-125.
[3] JIANG Tao,YU Kehui,CHEN Changming,et al.Discussion on the Design of Continuous Rigid Frame Bridge Pierr[J].Highway,2022,67(5):191-194.
[4] XUE Meihui,WANG Jianxing,WEI Changxi.Numerical Analysis of Finger-Point Beams Reinforced with CFRP Strips[J].Journal of Jishou University (Natural Science Edition),2018,39(4):48-53.
[5] XUE Meihui,WANG Jianxing.Strength Properties of Timber Beams Reinforced with CFRP Sheets[J].Journal of Jishou University (Natural Science Edition),2020,41(1):53-61.
[6] SHI Yan,LI Jun,QIN Hongguo,et al.Internal Force State of Long-Span Continuous Rigid-Frame Bridge with High-Rise Piers and Its Effect on Seismic Response[J].Journal of Traffic and Transportation Engineering,2022,22(1):70-81.
[7] DAI Keyi,CHEN Ruilin,CHEN Huan,et al.Study of Vertical Vibration of Vehicles-Long-Span Continuous Rigid Frame Bridge Based on Matlab-Midas[J].Journal of Jishou University (Natural Sciences Edition),2016,37(1):54-59.
[8] NAKAI YOSHIAKI,HA TUAN MINH,FUKADA SAIJI.Structural Behavior of Reinforced Concrete Slab Rigid-Frame Bridge with H-Shaped Steel Girders[J].International Journal of Steel Structures,2018,18(4):1219-1241.
[9] AWALL M R,RAHMAN M A,HASAN M M,et al.Performance of the Effect of Fractured Member of an Old Steel Truss Railway Bridge:A Case Study of Hardinge Bridge[J].Bridge Structures,2018,14(1):35-45.
[10] ZHANG Fei,WANG Yan.Spatial Stress of the Pier-Girder Rigid Region of a Continuous Rigid-Frame Bridge with V-Shaped Piers in Two Directions[J].Journal of Highway and Transportation Research and Development (English Edition),2020,14(1):45-54.
[11] SUN Saisai,LEI Gang,SUN Zhipeng.Dynamic and Static Load Tests on a Large-Span Rigid-Frame Bridge[J].Mathematical Modelling of Engineering Problems,2019,6(3):409-414.
[12] WEI Kai,ZHANG Jiarui,QIN Shunquan.Experimental and Numerical Assessment into Frequency Domain Dynamic Response of Deep Water Rigid-Frame Bridge[J].Journal of Earthquake Engineering,2019,26(1):1-24.
[13] AL-ATTRAQCHI ALI Y,HASHEMI M JAVAD,AL-MAHAIDI RIADH.Loss Assessment of Rigid-Frame Bridges Under Horizontal and Vertical Ground Motions[J].Structures,2022,35:243-259.
[14] FENG Yang,SONG Yifan.Research on Vehicle-Bridge Coupled Vibration of Long-Span Continuous Rigid Frame Bridges with High Piers[J].International Journal of Earth Sciences and Engineering,2016,9(2):855-858.
[15] XU Weibing,LUO Zhenyuan,YAN Weiming,et al.Impact of Pulse Parameters on the Seismic Response of Long-Period Bridges[J].Structure and Infrastructure Engineering,2020,16(10):1461-1480.
[16] SALKHORDEH M,GOVAHI E,MIRTAHERI M.Seismic Fragility Evaluation of Various Mitigation Strategies Proposed for Bridge Piers[J].Structures,2021,33:1892-1905.
[17] TANG Feng,LI Dejian.Stability of Long-Span Continuous Rigid-Frame Bridge with High Piers in Mountain Areas in Different Construction Stage and Relevant Parameter Influence Analysis[J].Journal of Railway Science and Engineering,2016,13(3):506-511.