预应力UHPC/RC阶梯桩-土相互作用的拟静力试验研究及数值分析

庄一舟; 宋琨生; 宋永青; 刘名琦

doi:10.11835/j.issn.2096-6717.2021.267

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预应力UHPC/RC阶梯桩-土相互作用的拟静力试验研究及数值分析

土木工程 | 更新时间：2023-09-19

- 预应力UHPC/RC阶梯桩-土相互作用的拟静力试验研究及数值分析
- Pseudo-static test and numerical analysis of prestressed UHPC/RC segmental pile-soil interaction
- 土木与环境工程学报 2023年45卷第5期页码：37-48
- 作者机构：
  
  1.浙江工业大学土木工程学院，杭州 310014
  2.福州大学土木工程学院，福州 350108
- 作者简介：
  
  庄一舟（1964- ），男，教授，博士，主要从事桥梁工程和建筑结构研究，E-mail:yizhouzhuang@qq.com。
- 基金信息：
  
  国家自然科学基金(51778147);浙江省自然科学基金(LY17E080022)
- DOI：10.11835/j.issn.2096-6717.2021.267
  中图分类号： U443.22
- 收稿：2021-06-09，
  
  纸质出版：2023-10-25
- 稿件说明：
移动端阅览
庄一舟, 宋琨生, 宋永青, 等. 预应力UHPC/RC阶梯桩-土相互作用的拟静力试验研究及数值分析[J]. 土木与环境工程学报, 2023,45(5):37-48.

ZHUANG Yizhou, SONG Kunsheng, SONG Yongqing, et al. Pseudo-static test and numerical analysis of prestressed UHPC/RC segmental pile-soil interaction[J]. Journal of Civil and Environmental Engineering, 2023, 45(5): 37-48.
庄一舟, 宋琨生, 宋永青, 等. 预应力UHPC/RC阶梯桩-土相互作用的拟静力试验研究及数值分析[J]. 土木与环境工程学报, 2023,45(5):37-48. DOI： 10.11835/j.issn.2096-6717.2021.267.

ZHUANG Yizhou, SONG Kunsheng, SONG Yongqing, et al. Pseudo-static test and numerical analysis of prestressed UHPC/RC segmental pile-soil interaction[J]. Journal of Civil and Environmental Engineering, 2023, 45(5): 37-48. DOI： 10.11835/j.issn.2096-6717.2021.267.

摘要

整体式无缝桥中的混凝土基桩侧向刚度过大，难以满足桥梁的纵向变形，提出一种UHPC/RC材料串联形成的阶梯桩来满足整体桥纵向变形需求。设计制作了2根UHPC/RC阶梯桩模型（无、有预应力），并对其进行水平低周往复荷载试验，通过桩身破坏特点、滞回曲线、骨架曲线、等效黏滞阻尼比、刚度退化等研究其耗能能力及抗震性能。结果表明：无预应力阶梯桩的破坏位置在3倍桩径的埋深位置，桩身开裂时桩顶的位移荷载为8~10 mm；有预应力阶梯桩的破坏位置在6倍桩径的埋深位置，桩身开裂时桩顶的位移荷载为10~15 mm。说明预应力的施加能有效提高阶梯桩抗裂能力及抗震性能，并满足整体桥水平变形需求。采用OpenSees软件对阶梯桩支承的整体桥进行参数分析发现，预应力度、桩上下段长度比与刚度比增大均可提高阶梯桩的水平承载力与变形能力。

Abstract

The reinforced concrete piles (RC) in integral abutment bridges (IAB) are challenging to meet the longitudinal deformation of bridges with significant lateral stiffness. This paper proposes a new form of pile comprised of UHPC and RC piles in series to meet the longitudinal deformation demand of IAB. Tests were conducted for two UHPC/RC segmental piles (with or without prestressing). The failure characteristics

hysteretic behavior curves

skeleton curves

equivalent viscous damping ratio

and rigidity degeneration were developed using horizontal displacement loads. The failure position of the non-prestressed segmental piles is at the buried depth of three times the diameter of the pile

the displacement of the pile top when the pile cracks is 8-10 mm; the failure position of the prestressed segmental piles is at the buried depth of four times the diameter of the pile

The displacement of the pile top when the pile cracks is 10-15 mm. The results show that prestressing can effectively improve the resistance cracking capacity of step piles and seismic properties

while meeting the deformation requirements of IAB. The finite element model (OpenSees) was used for modeling and analysis. The analysis results show that the horizontal bearing capacity and deformation capacity of stepped pile can be improved by the increase of prestress degree

the ratio of length and stiffness of pile.

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references

陈宝春 , 庄一舟 , 黄福云 . 无伸缩缝桥梁 [M]. 2版 . 北京 : 人民交通出版社 , 2019 .

CHEN B C , ZHUANG Y Z , HUANG F Y . Jointless bridges [M]. 2nd edition . Beijing : China Communications Press , 2019 . (in Chinese)

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 .

武守信 , 何亚东 , 江昕宇 . 桥梁基础工程2019年度研究进展 [J]. 土木与环境工程学报(中英文) , 2020 , 42 ( 5 ): 159 - 167 .

WU S X , HE Y D , JIANG X Y . State-of-the-art review of bridge foundation engineering in 2019 [J]. Journal of Civil and Environmental Engineering , 2020 , 42 ( 5 ): 159 - 167 . (in Chinese)

洪锦祥 , 彭大文 . 桩基础的整体式桥台桥梁受力性能研究 [J]. 中国公路学报 , 2002 , 15 ( 4 ): 43 - 48 .

HONG J X , PENG D W . Research on the loaded property of integral abutment bridges with flexible piles [J]. China Journal of Highway and Transport , 2002 , 15 ( 4 ): 43 - 48 . (in Chinese)

DUNKER K F , LIU D J . Foundations for integral abutments [J]. Practice Periodical on Structural Design and Construction , 2007 , 12 ( 1 ): 22 - 30 .

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 .

于天来 , 李伯岩 , 刘洋 , 等 . 整体式桥台桥梁细部构造设计 [J]. 中外公路 , 2011 , 31 ( 2 ): 193 - 195 .

YU T L , LI B Y , LIU Y , et al . Detail structural design of integral abutment bridge [J]. Journal of China & Foreign Highway , 2011 , 31 ( 2 ): 193 - 195 . (in Chinese)

黄福云 , 庄一舟 , 付毳 , 等 . 无伸缩缝梁桥抗震性能与设计计算方法研究 [J]. 地震工程与工程振动 , 2015 , 35 ( 5 ): 15 - 22 .

HUANG F Y , ZHUANG Y Z , FU C , et al . Review on the seismic performance and simplified design method of jointless bridge [J]. Earthquake Engineering and Engineering Dynamics , 2015 , 35 ( 5 ): 15 - 22 . (in Chinese)

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 B C , JI T , HUANG Q W , et al . Review of research on ultra-high performance concrete [J]. Journal of Architecture and Civil Engineering , 2014 , 31 ( 3 ): 1 - 24 . (in Chinese)

李传习 , 聂洁 , 潘仁胜 , 等 . 水胶比对超高性能混凝土施工与力学性能的影响 [J]. 土木与环境工程学报(中英文) , 2020 , 42 ( 4 ): 164 - 174 .

LI C X , NIE J , PAN R S , et al . Effect of water-to-binder ratio on construction and mechanical properties of ultra-high performance concrete [J]. Journal of Civil and Environmental Engineering , 2020 , 42 ( 4 ): 164 - 174 . (in Chinese)

VOORT T V , SULEIMAN M T , SRITHARAN S . Design and performance verification of ultra-high performance concrete piles for deep foundations [R]. Ames, Iowa, U. S.: Iowa State University, 2008.

GARDER J A . Use of UHPC piles in integral abutment bridges [D]. Ames : Iowa State University , 2012 .

SULEIMAN M T , VANDE VOORT T , SRITHARAN S . Behavior of driven ultrahigh-performance concrete H-piles subjected to vertical and lateral loadings [J]. Journal of Geotechnical and Geoenvironmental Engineering , 2010 , 136 ( 10 ): 1403 - 1413 .

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 .

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 B C , CHEN G D , SU J Z , 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 - 8 . (in Chinese)

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 Y Z , HUANG F Y , QIAN H M , et al . Pseudo-static test research on mechanic behavior of PHC piles with soil-pile interaction [J]. China Journal of Highway and Transport , 2017 , 30 ( 4 ): 42 - 51, 71 . (in Chinese)

刘新荣 , 方焘 , 耿大新 , 等 . 大直径变径桩横向承载特性模型试验 [J]. 中国公路学报 , 2013 , 26 ( 6 ): 80 - 86, 190 .

LIU X R , FANG T , GENG D X , et al . Model test on lateral bearing behaviors of large diameter pile with variable cross section [J]. China Journal of Highway and Transport , 2013 , 26 ( 6 ): 80 - 86, 190 . (in Chinese)

土的工程分类标准 : GB/T 50145—2007 [S]. 北京 : 中国计划出版社 , 2007 .

Engineering classification standard of soil : GB/T 50145—2007 [S]. Beijing : China Planning Press , 2007 . (in Chinese)

李增锋 . 基于位移的混凝土桩-土相互作用拟静力试验研究 [D]. 福州 : 福州大学 , 2018 .

LI Z F . Quasi static test research of concrete pile-soil interaction based on displacement [D]. Fuzhou : Fuzhou University , 2018 . (in Chinese)

PARK R . Evaluation of ductility of structures and structural assemblages from laboratory testing [J]. Bulletin of the New Zealand Society for Earthquake Engineering , 1989 , 22 ( 3 ): 155 - 166 .

过镇海 , 时旭东 . 钢筋混凝土原理和分析 [M]. 北京 : 清华大学出版社 , 2003 .

GUO Z H , SHI X D . Reinforced concrete theory and analyse [M]. Beijing : Tsinghua University Press , 2003 . (in Chinese)

建筑抗震试验规程 : JGJ/T 101—2015 [S]. 北京 : 中国建筑工业出版社 , 2015 .

Specification for seismic test of buildings : JGJ/T 101—2015 [S]. Beijing : China Architecture & Building Press , 2015 . (in Chinese)

MAZZONI S , MCKENNA F , SCOTT M H , et al . OpenSees Command Language Manual [M]. Berkeley : PEER, University of California , 2007 .

刘亚明 , 司炳君 , 何福 . 单桩-土相互作用非线性数值分析模型 [J]. 防灾科技学院学报 , 2018 , 20 ( 2 ): 1 - 5 .

LIU Y M , SI B J , HE F . Nonlinear numerical analysis model for single pile-soil interaction [J]. Journal of Institute of Disaster Prevention , 2018 , 20 ( 2 ): 1 - 5 . (in Chinese)

郭朋鑫 . 桥梁H型钢桩抗震性能研究 [D]. 长沙 : 湖南大学 , 2015 .d

GUO P X . Seismic behavior of steel H-piles in bridges [D]. Changsha : Hunan University , 2015 . (in Chinese)

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