«上一篇/Previous Article|本期目录/Table of Contents|下一篇/Next Article»

《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:

37卷

期数:

2020年05期

页码:

151-160

栏目:

出版日期:

2020-09-30

文章信息/Info

Title:

Mechanical Property of Integral Bridge Supported by Different Types of Pile Foundations

文章编号:

1673-2049(2020)05-0151-10

作者:

罗小烨¹,陈宝春¹,黄福云¹,郭维强¹,单玉麟¹,庄一舟²

1. 福州大学 土木工程学院,福建 福州 350116; 2. 浙江工业大学 土木工程学院,浙江 杭州 310014

Author(s):

LUO Xiao-ye¹, CHEN Bao-chun¹, HUANG Fu-yun¹, GUO Wei-qiang¹, SHAN Yu-lin¹, ZHUANG Yi-zhou²

1. College of Civil Engineering, Fuzhou University, Fuzhou 350116, Fujian, China; 2. College of Civil Engineering, Zhejiang University of Technology, Hangzhou 310014, Zhejiang, China

关键词:

整体桥;  桩基;  力学性能;  动载试验;  参数分析

Keywords:

integral bridge;  pile foundation;  mechanical property;  dynamic load test;  parameter analysis

分类号:

TU311

DOI:

10.19815/j.jace.2019.12002

文献标志码:

A

摘要:

以福建永春县上坂大桥作为工程背景建立了全桥有限元模型,通过实桥静载、动载试验对模型进行验证,并在整体式桥台下分别设置了矩形桩、圆形桩、预应力高强混凝土(PHC)管桩、钢管桩、H型钢桩、工型超高性能混凝土(UHPC)桩和工型UHPC-矩形变截面桩,研究了整体桥采用不同类型桩基时对其整体力学性能的影响。结果表明:有限元模型的计算基频较实测值减小了5.5%,第1阶模态均为横向侧飘,主梁在汽车偏载和中载作用下出现的竖向挠度与实测挠度较吻合,验证了有限元模型的合理性; 随着整体温度的升高,不同类型桩基支撑的整体桥主梁和桩基最大正、负弯矩和剪力随之增大,主梁竖向挠度随之减小,梁端水平位移也呈现明显的增长趋势,但在相同温度荷载作用下,整体式桥台下设置不同类型桩基对梁端水平位移的影响很小; 桩身显著变形区主要出现在0～6.4D(D为桩径)埋深处,在更大埋深处基本可忽略,表现出了柔性桩的变形性能; 随着变截面桩的上部UHPC桩段抗弯刚度的增大,主梁最大正、负弯矩与桩身最大弯矩均显著增大,桩顶水平变形显著减小; 随着上部UHPC桩段长度的增加,主梁最大正、负弯矩与桩身最大弯矩先呈现明显的增长趋势,而后趋于稳定,桩顶水平变形则先呈现明显减小趋势,随后趋于稳定; 上部UHPC桩段长度一般取为桩基总长的36%,对整体桥主梁和桩基的受力较好,为UHPC桩段的经济长度; 温差小于15 ℃时,整体桥采用不同类型桩基时对主梁和桩基的受力影响不大; 随着温差继续增大,整体桥采用H型钢桩、工型UHPC桩或工型UHPC-矩形变截面桩时主梁和桩基的受力性能更好。

Abstract:

Yongchun Shangban bridge in Fujian province was selected as the engineering background and its finite element model was established. The calculation model was validated by static and dynamic load tests on practical bridge, and then different types of pile foundations such as rectangle pile, circular pile, pre-stressed high-strength concrete(PHC)pipe pile, steel pipe pile, H-shaped steel pile, I-shaped ultra-high performance concrete(UHPC)pile and I-shaped UHPC-rectangular variable section pile were designed to support the integral abutment in the model, aiming to study the impact of different types of pile foundations on the overall mechanical properties of integral bridge. The results show that the calculated fundamental frequency of the finite element model is 5.5% lower than the measured value, and the first vibrating model is lateral drift. The vertical deflection of the main beam under the action of vehicle eccentric load and medium load is consistent with the measured deflection, which verifies the rationality of the finite element model. With the increase of the overall temperature, the maximum positive and negative bending moments and shear forces of the main beam and pile foundation of the integral bridge supported by different types of pile foundation increase, the vertical deflection of the main beam decreases, and the horizontal displacement of the beam end also shows an obvious growth trend. Under the same temperature load, different types of pile foundation under the integral abutment have little effect on the horizontal displacement of the beam end. The significant deformation area of pile body mainly occurs in 0-6.4D(D is pile diameter)buried depth, which can be ignored in larger buried depth, showing the deformation performance of flexible pile. With the increase of the bending rigidity of the upper UHPC section of the variable section pile, the maximum positive and negative bending moments of the main beam and the maximum bending moments of the pile shaft increase significantly, and the horizontal deformation of the pile top decreases significantly. With the increase of the length of the upper UHPC pile section, the maximum positive and negative bending moment of the main beam and the maximum bending moment of the pile body first show an obvious growth trend, and then basically tend to be stable, and the horizontal deformation of pile top first decreases and then tends to be stable. The length of the upper UHPC pile section is generally taken as 36% of the total length of the pile foundation, which is better for the overall bridge girder and pile foundation, and is the economic length of the UHPC pile section. When the temperature difference is less than 15 ℃, the influence of different types of pile foundation on the stress of main beam and pile foundation is not significant. As the temperature difference continues to increase, when H-shaped steel pile, I-shaped UHPC pile or I-shaped UHPC rectangular variable section pile is used for the whole bridge, the mechanical performance of the main beam and pile foundation is better.

参考文献/References:

[1] WASSERMAN E P,WALKER J H.Highway Structures Design Handbook[M].Chicago:American Iron and Steel Institute,1996.
[2]陈宝春,庄一舟,黄福云,等.无伸缩缝桥梁[M].2版.北京:人民交通出版社,2019.
CHEN Bao-chun,ZHUANG Yi-zhou,HUANG Fu-yun,et al.Jointless Bridges[M].2nd ed.Beijing:China Communications Press,2019.
[3]ERHAN S,DICLELI M.Effect of Dynamic Soil-bridge Interaction Modeling Assumptions on the Calculated Seismic Response of Integral Bridges[J].Soil Dynamics and Earthquake Engineering,2014,66:42-55.
[4]许 震,罗小烨,陈宝春,等.均匀温度下多跨半刚接整体桥受力性能[J].福州大学学报:自然科学版,2019,47(5):669-674,682.
XU Zhen,LUO Xiao-ye,CHEN Bao-chun,et al.Mechanical Performance of Multi-span Semi-rigid Integral Bridge Under Uniform Temperature[J].Journal of Fuzhou University:Natural Science Edition,2019,47(5):669-674,682.
[5]AZIZINAMINI A,YAKEL A,SHERAFATI A,et al.Flexible Pile Head in Jointless Bridges:Design Provisions for H-piles in Cohesive Soils[J].Journal of Bridge Engineering,2016,21(3):04015064.
[6]OESTERLE R G,TABATABAI H,LAWSON T J,et al.Jointless and Integral Abutment Bridges:Analytical Research and Proposed Design Procedures[R].Washington DC:FHWA,2002.
[7]LAFAVE J M,FAHNESTOCK L A,JARRETT M W,et al.Numerical Simulations and Field Monitoring of Integral Abutment Bridges[C]//INGRAFFEA N,LIBBY M.American Society of Civil Engineers Structures Congress.Portland:Oregon,2015:561-572.
[8]CIVJAN S A,BONCZAR C,BRENA S F,et al.Integral Abutment Bridge Behavior:Parametric Analysis of a Massachusetts Bridge[J].Journal of Bridge Engineering,2007,12(1):64-71.
[9]DICLELI M.Analytical Prediction of Thermal Displacement Capacity of Integral Bridges Built on Sand[J].Advances in Structural Engineering,2005,8(1):15-30.
[10]陈宝春,付 毳,庄一舟,等.中国无伸缩缝桥梁应用现状与发展对策[J].中外公路,2018,38(1):87-95.
CHEN Bao-chun,FU Cui,ZHUANG Yi-zhou,et al.Application Status and Development Strategy of Jointless Bridge in China[J].Journal of China & Foreign Highway,2018,38(1):87-95.
[11]吴庆雄,刘钰薇,江越胜,等.墩梁半刚性连接的钢-混组合梁整体桥设计[J].桥梁建设,2019,49(1):101-106.
WU Qing-xiong,LIU Yu-wei,JIANG Yue-sheng,et al.Design of Integral Bridge with Steel-concrete Composite Girder Connected by Semi-rigid Joint[J].Bridge Construction,2019,49(1):101-106.
[12]WHITE H,PETURSSON H,COLLIN P.Integral Abutment Bridges:The European Way[J].Practice Periodical on Structural Design and Construction,2010,15(3):201-208.
[13]KONG B,CAI C S,ZHANG Y.Parametric Study of an Integral Abutment Bridge Supported by Prestressed Precast Concrete Piles[J].Engineering Structures,2016,120:37-48.
[14]GAMA D,DE ALMEIDA J F.Concrete Integral Abutment Bridges with Reinforced Concrete Piles[J].Structural Concrete,2014,15(3):292-304.
[15]KAMEL M R,BENAK J V,TADROS M K,et al.Prestressed Concrete Piles in Jointless Bridges[J].PCI Journal,1996,41(2):56-67.
[16]BURDETTE E G,HOWARD S C,TIDWELL J B,et al.Lateral Load Tests on Prestressed Concrete Piles Supporting Integral Abutments[J].PCI Journal,2004,49(5):70-77.
[17]庄一舟,黄福云,钱海敏,等.PHC管桩-土相互作用受力性能拟静力试验[J].中国公路学报,2017,30(4):42-51,71.
ZHUANG Yi-zhou,HUANG Fu-yun,QIAN Hai-min,et al.Pseudo-static Research on Mechanic Behavior of PHC Piles with Soil-pile Interaction[J].China Journal of Highway and Transport,2017,30(4):42-51,71.
[18]陈宝春,季 韬,黄卿维,等.超高性能混凝土研究综述[J].建筑科学与工程学报,2014,31(3):1-24.
CHEN Bao-chun,JI Tao,HUANG Qing-wei,et al.Review of Research on Ultra-high Performance Concrete[J].Journal of Architecture and Civil Engineering,2014,31(3):1-24.
[19]WANG D H,SHI C J,WU Z M,et al.A Review on Ultra High Performance Concrete:Part II.Hydration,Microstructure and Properties[J].Construction and Building Materials,2015,96:368-377.
[20]BRUHWILER E,DENARIE E.Rehabilitation and Strengthening of Concrete Structures Using Ultra-high Performance Fibre Reinforced Concrete[J].Structural Engineering International,2013,23(4):450-457.
[21]陈宝春,陈国栋,苏家战,等.采用UHPC-RC阶梯桩的整体桥试设计[J].建筑科学与工程学报,2018,35(1):1-8.
CHEN Bao-chun,CHEN Guo-dong,SU Jia-zhan,et al.Trial-design Study on Integral Abutment Bridge by Using UHPC-RC Stagewise Piles[J].Journal of Architecture and Civil Engineering.2018,35(1):1-7.
[22]戴沂新.整体桥H型UHPC桩基本结构受压性能试验研究[D].福州:福州大学,2018.
DAI Yi-xin.Experimental Research on the Compressive Properties of H-shaped UHPC Columns Piles in Integral Abutment Bridge[D].Fuzhou:Fuzhou University,2018.
[23]NG K W,GARDER J,SRITHARAN S.Investigation of Ultra High Performance Concrete Piles for Integral Abutment Bridges[J].Engineering Structures,2015,105:220-230.
[24]陈宝春,黄卿维,王远洋,等.中国第一座超高性能混凝土(UHPC)拱桥的设计与施工[J].中外公路,2016,36(1):67-71.
CHEN Bao-chun,HUANG Qing-wei,WANG Yuan-yang,et al.Design and Construction of the First Ultra-high Performance Concrete(UHPC)Arch Bridge in China[J].Journal of China & Foreign Highway,2016,36(1):67-71.
[25]GB 50010-2010,混凝土结构设计规范[S].
GB 50010-2010,Code for Design of Concrete Structures[S].
[26]GB 50017-2017,钢结构设计规范[S].
GB 50017-2017,Code for Design of Steel Structures[S].
[27]JTG 3363-2019,公路桥涵地基与基础设计规范[S].
JTG 3363-2019,Specifications for Design of Foundation of Highway Bridges and Culverts[S].
[28]DAVID T K,FORTH J P,YE J.Superstructure Behavior of a Stub-type Integral Abutment Bridge[J].Journal of Bridge Engineering,2014,19(6):04014012.
[29]KIM W,LAWMAN J A.Integral Abutment Bridge Response Under Thermal Loading[J].Engineering Structures,2010,32(6):1495-1508.

相似文献/References:

[1]杨敏,孙庆.隧道开挖对邻近桩基影响的研究综述[J].建筑科学与工程学报,2011,28(01):118.
　YANG Min,SUN Qing.Research Summary of Tunnel Excavation Effects on Adjacent Pile Foundation[J].Journal of Architecture and Civil Engineering,2011,28(05):118.
[2]龚成中,何春林,戴国亮.坝陵河大桥深嵌岩桩竖向承载力试验[J].建筑科学与工程学报,2011,28(04):43.
　GONG Cheng-zhong,HE Chun-lin,DAI Guo-liang.Experiment on Vertical Bearing Capacity of Deep Rock-socketed Pile for Baling River Bridge[J].Journal of Architecture and Civil Engineering,2011,28(05):43.
[3]陈宝春,陈国栋,苏家战,等.采用UHPC-RC阶梯桩的整体桥试设计[J].建筑科学与工程学报,2018,35(01):1.
　CHEN Bao-chun,CHEN Guo-dong,SU Jia-0zhan,et al.Trial-design Study on Integral Abutment Bridge by Using UHPC-RC Stagewise Piles[J].Journal of Architecture and Civil Engineering,2018,35(05):1.
[4]刘荣桂,席宜超,鲁开明,等.上部结构刚度对桩基承台加防水板的影响[J].建筑科学与工程学报,2019,36(02):39.
　LIU Rong-gui,XI Yi-chao,LU Kai-ming,et al.Influence of Superstructure Stiffness on Pile Foundation Cap with Waterproof Slab[J].Journal of Architecture and Civil Engineering,2019,36(05):39.
[5]解 刚,刘海鹏,赵宝俊,等.考虑冲刷效应的黄土沟壑区桥梁桩基极限承载力 计算方法[J].建筑科学与工程学报,2020,37(04):108.[doi:10.19815/j.jace.2020.04063]
　XIE Gang,LIU Hai-peng,ZHAO Bao-jun,et al.Calculation Method of Ultimate Bearing Capacity of Bridge Pile Foundation in Loess Gully Area Considering Scour Effect[J].Journal of Architecture and Civil Engineering,2020,37(05):108.[doi:10.19815/j.jace.2020.04063]
[6]王超雄,胡裕琛,莫品强.,等.下穿隧道对邻近桩基承载力与沉降的影响[J].建筑科学与工程学报,2021,38(03):117.[doi:10.19815/j.jace.2020.06031]
　WANG Chao-xiong,HU Yu-chen,MO Pin-qiang,et al.Influence of Underpass Tunnel on Bearing Capacity and Settlement of Adjacent Pile Foundation[J].Journal of Architecture and Civil Engineering,2021,38(05):117.[doi:10.19815/j.jace.2020.06031]
[7]陈达章,陈天翼,牟太平,等.软土桩基上拓宽路堤的变形破坏离心模型试验[J].建筑科学与工程学报,2021,38(06):11.[doi:10.19815/j.jace.2021.08057]
　CHEN Da-zhang,CHEN Tian-yi,MOU Tai-ping,et al.Centrifugal Modeling Test on Deformation and Failure Behavior of Widening Embankment on Soft Soil with Pile Foundation[J].Journal of Architecture and Civil Engineering,2021,38(05):11.[doi:10.19815/j.jace.2021.08057]
[8]霍知亮,孙立强,郎瑞卿,等.基于美国标准的桩基竖向承载力计算分析[J].建筑科学与工程学报,2021,38(06):25.[doi:10.19815/j.jace.2021.08046]
　HUO Zhi-liang,SUN Li-qiang,LANG Rui-qing,et al.Analysis of Vertical Bearing Capacity of Pile Foundation Based on American Standard[J].Journal of Architecture and Civil Engineering,2021,38(05):25.[doi:10.19815/j.jace.2021.08046]
[9]于 达,孔纲强,季伟伟,等.隧道仰拱及基底能量桩热致应力与换热效率现场试验[J].建筑科学与工程学报,2023,40(03):121.[doi:10.19815/j.jace.2022.03047]
　YU Da,KONG Gangqiang,JI Weiwei,et al.Field tests on thermal induced stress and heat transfer efficiency of tunnel invert and base energy pile[J].Journal of Architecture and Civil Engineering,2023,40(05):121.[doi:10.19815/j.jace.2022.03047]
[10]冯忠居,徐博熙,陈慧芸,等.不同溶洞处治措施对桩基承载特性的影响研究[J].建筑科学与工程学报,2024,41(04):151.[doi:10.19815/j.jace.2022.07011]
　FENG Zhongju,XU Boxi,CHEN Huiyun,et al.Study on influence of different treatment measures for karst caves on bearing characteristics of pile foundation[J].Journal of Architecture and Civil Engineering,2024,41(05):151.[doi:10.19815/j.jace.2022.07011]

备注/Memo

备注/Memo:

收稿日期:2019-12-01
基金项目:国家自然科学基金项目(51578161,51778147); 福建省高校新世纪优秀人才支持计划项目(601897)
作者简介:罗小烨(1990-),男,福建龙岩人,工学博士研究生,E-mail:511731938@qq.com。
通信作者:黄福云(1979-),男,江西丰城人,研究员,博士研究生导师,工学博士,E-mail:Huangfuyun@fzu.edu.cn。

常用功能

更新日期/Last Update: 2020-10-15