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

Issue:

2023年05期

Page:

138-147

Research Field:

桥梁工程

Publishing date:

Info

Title:

Parameters analysis of seismic performance of prefabricated circular pier with hollow interlayer

Author(s):

MENG Lingxiao¹;  SUN Zhonghua²;  ZHU Zhixin³;  XU Yingdong¹;  ZHANG Chuanping²;  FU Tao³

(1. China Construction Infrastructure Corp., Ltd., Beijing 100044, China; 2. The First Construction Limited Company of China Construction Eighth Engineering Division, Jinan 250102, Shandong, China; 3. School of Transportation Engineering, Shandong Jianzhu University, Jinan 250101, Shandong, China)

Keywords:

prefabricated pier;  seismic performance;  pseudo static test;  hysteretic energy dissipation capacity;  hollow interlayer

PACS:

TU997

DOI:

10.19815/j.jace.2022.01086

Abstract:

In order to reduce the hoisting weight of prefabricated piers and realize the lightweight of prefabricated piers, a kind of prefabricated circular pier with a hollow interlayer based on grouted sleeves connection was proposed, and a scale model of prefabricated circular pier with hollow interlayer was designed and manufactured. The seismic performance was analyzed by pseudo static test. The refined finite element model of the prefabricated circular pier with hollow interlayer was established by ABAQUS finite element analysis software. The accuracy of the finite element model was verified by comparing results of the pseudo static test with that of the finite element calculation. By changing the axial compression rate and hollow rate of the prefabricated circular pier with hollow interlayer, the influences of different axial compression rate and hollow rate on the seismic performance of the prefabricated circular pier with hollow interlayer was studied. Based on the circular piers in actual engineering, a prefabricated circular pier with hollow interlayer of actual engineering were designed and their seismic performance was analyzed. The results show that under the reciprocating load, with the increase of axial compression rate, the limit bearing capacity of a prefabricated circular pier with hollow interlayer is improved, the horizontal bearing capacity enhances significantly, the displacement ductility coefficient decreases more apparently, and the initial tangential stiffness increases more, which improve the resistance to deformation of the pier at the initial period of loading. By changing the height of hollow steel tube, the hollow rate of prefabricated circular pier with hollow interlayer is increased. With the increase of hollow rate of pier body, the prefabricated circular pier with hollow interlayer can better take the advantages of strong deformation capacity and high stiffness of hollow steel tube, the bending bearing capacity of the pier body is significantly improved, the initial tangential stiffness of the pier body is significantly increased, the resistance to deformation of the pier at the initial period of loading is enhanced, and the ductility of the pier body is reduced. The hysteresis loop of the prefabricated circular pier with hollow interlayer of actual engineering is full. It has a higher flexural load capacity and excellent seismic performance. The pre-embedded hollow steel tube in the pier body has a positive effect on the seismic performance of prefabricated piers. The increase in both the axial compression rate and hollow rate can significantly improve the horizontal flexural bearing capacity of the pier and enhance the resistance to deformation of the pier body at the initial period of loading.

References:

[1] 王景全,王 震,高玉峰,等.预制桥墩体系抗震性能研究进展:新材料、新理念、新应用[J].工程力学,2019,36(3):1-23.
WANG Jingquan,WANG Zhen,GAO Yufeng,et al.Review on aseismic behavior of precast piers:new material,new concept,and new application[J].Engineering Mechanics,2019,36(3):1-23.
[2]SHIM C S,LEE S Y,PARK S J,et al.Experiments on prefabricated segmental bridge piers with continuous longitudinal reinforcing bars[J].Engineering Structures,2017,132:671-683.
[3]LI T T,QU H Y,WANG Z Q,et al.Seismic performance of precast concrete bridge columns with quasi-static cyclic shear test for high seismic zones[J].Engineering Structures,2018,166:441-453.
[4]欧智菁,谢铭勤,秦志清,等.带钢管剪力键的装配式混凝土桥墩抗震性能[J].西南交通大学学报,2021,56(6):1169-1175,1191.
OU Zhijing,XIE Mingqin,QIN Zhiqing,et al.Seismic performance test and FEM analysis of assembled concrete pier with sleeve and steel tube shear connector[J].Journal of Southwest Jiaotong University,2021,56(6):1169-1175,1191.
[5]徐文靖,马 骉,黄 虹,等.套筒连接的预制拼装桥墩抗震性能研究[J].工程力学,2020,37(10):93-104.
XU Wenjing,MA Biao,HUANG Hong,et al.The seismic performance of precast bridge piers with grouted sleeves[J].Engineering Mechanics,2020,37(10):93-104.
[6]刘雪山,李建中,张宏杰,等.不同构造下的预制拼装钢管混凝土桥墩抗震性能试验[J].中国公路学报,2021,34(11):116-128.
LIU Xueshan,LI Jianzhong,ZHANG Hongjie,et al.Experimental analysis of seismic performance of precast assembled concrete filled steel tube piers under different structures[J].China Journal of Highway and Transport,2021,34(11):116-128.
[7]魏红一,肖 纬,王志强,等.采用套筒连接的预制桥墩抗震性能试验研究[J].同济大学学报(自然科学版),2016,44(7):1010-1016.
WEI Hongyi,XIAO Wei,WANG Zhiqiang,et al.Experimental study on seismic performance of precast bridge pier with grouted splice sleeve[J].Journal of Tongji University(Natural Science),2016,44(7):1010-1016.
[8]王志强,卫张震,魏红一,等.预制拼装联接件形式对桥墩抗震性能的影响[J].中国公路学报,2017,30(5):74-80.
WANG Zhiqiang,WEI Zhangzhen,WEI Hongyi,et al.Influences of precast segmental connector forms on seismic performance of bridge pier[J].China Journal of Highway and Transport,2017,30(5):74-80.
[9]CHENG Z,LIU D,LI S,et al.Performance characterization and design recommendations of socket connections for precast columns[J].Engineering Structures,2021,242:112537.
[10]ZHANG G D,HAN Q,XU K,et al.Experimental investigation of seismic behavior of UHPC-filled socket precast bridge column-foundation connection with shear keys[J].Engineering Structures,2021,228:111527.
[11]XU W J,MA B,DUAN X Z,et al.Experimental investigation of seismic behavior of UHPC connection between precast columns and footings in bridges[J].Engineering Structures,2021,239:112344.
[12]QU H Y,LI T T,WANG Z Q,et al.Investigation and verification on seismic behavior of precast concrete frame piers used in real bridge structures:experimental and numerical study[J].Engineering Structures,2018,154:1-9.
[13]DING Y,WU D Q,SU J S,et al.Experimental and numerical investigations on seismic performance of RC bridge piers considering buckling and low-cycle fatigue of high-strength steel bars[J].Engineering Structures,2021,227:111464.
[14]SU J S,LI Z X,WANG J J,et al.Numerical simulation and damage analysis of RC bridge piers reinforced with varying yield strength steel reinforcement[J].Soil Dynamics and Earthquake Engineering,2020,130:106007.
[15]郑永峰,郭正兴,曹 江.新型灌浆套筒的约束机理及约束应力分布[J].哈尔滨工业大学学报,2015,47(12):106-111.
ZHENG Yongfeng,GUO Zhengxing,CAO Jiang.Confinement mechanism and confining stress distribution of new grouting coupler for rebars splicing[J].Journal of Harbin Institute of Technology,2015,47(12):106-111.
[16]ZHENG Y F,GUO Z X,GUAN D Z,et al.Parametric study on a novel grouted rolling pipe splice for precast concrete construction[J].Construction and Building Materials,2018,166:452-463.
[17]郑永峰,郭正兴,张 新.套筒内腔构造对钢筋套筒灌浆连接黏结性能的影响[J].建筑结构学报,2018,39(9):158-166.
ZHENG Yongfeng,GUO Zhengxing,ZHANG Xin.Effect of sleeve inner cavity structure on bond performance of grouted pipe splice[J].Journal of Building Structures,2018,39(9):158-166.
[18]混凝土结构设计规范:GB 50010—2010[S].北京:中国建筑工业出版社,2011.
Code for design of concrete structures:GB 50010—2010[S].Beijing:China Architecture & Building Press,2011.
[19]杨 剑,方 志.超高性能混凝土单轴受压应力-应变关系研究[J].混凝土,2008(7):11-15.
YANG Jian,FANG Zhi.Research on stress-strain relation of ultra high performance concrete[J].Concrete,2008(7):11-15.
[20]赵 卓,耿佳硕,王建强.采用UHPC材料连接的装配式桥墩抗震性能研究[J].郑州大学学报(工学版),2021,42(2):13-18.
ZHAO Zhuo,GENG Jiashuo,WANG Jianqiang.Study on seismic performance of prefabricated pier connected by UHPC[J].Journal of Zhengzhou University(Engineering Science),2021,42(2):13-18.

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Last Update: 2023-09-01