|本期目录/Table of Contents|

[1]徐振文,周志强,郑松林,等.体外预应力加固砖砌体开洞墙抗震性能试验[J].南京工业大学学报(自然科学版),2018,40(03):61-66.[doi:10.3969/j.issn.1671-7627.2018.03.011]
 XU Zhenwen,ZHOU Zhiqiang,ZHENG Songlin,et al.Quasi-static test on seismic behavior of masonry walls with opening strengthened with external prestressing technique[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2018,40(03):61-66.[doi:10.3969/j.issn.1671-7627.2018.03.011]
点击复制

体外预应力加固砖砌体开洞墙抗震性能试验()
分享到:

《南京工业大学学报(自然科学版)》[ISSN:1671-7627/CN:32-1670/N]

卷:
40
期数:
2018年03期
页码:
61-66
栏目:
出版日期:
2018-05-20

文章信息/Info

Title:
Quasi-static test on seismic behavior of masonry walls with opening strengthened with external prestressing technique
文章编号:
1671-7627(2018)03-0061-06
作者:
徐振文1周志强2郑松林1郭樟根1杨放1蒋吉明3
1.南京工业大学 土木工程学院,江苏 南京 211800; 2.无锡市惠山区住房和城乡建设局,江苏 无锡 214174; 3. 南京工业大学基建处,江苏 南京 211800
Author(s):
XU Zhenwen1ZHOU Zhiqiang2ZHENG Songlin1GUO Zhanggen1YANG Fang1JIANG Jiming3
1.College of Civil Engineering,Nanjing Tech University,Nanjing 211800,China; 2.Huishan Housing and Urban-Rural Construction Bureau,Wuxi 214174,China; 3.Infrastructure Construction Division,Nanjing Tech University,Nanjing 211800,China
关键词:
开洞墙体 体外预应力 抗震加固 拟静力试验
Keywords:
wall with opening external prestressing technique seismic reinforcement quasi-static test
分类号:
TU317
DOI:
10.3969/j.issn.1671-7627.2018.03.011
文献标志码:
A
摘要:
对二榀体外预应力加固开洞砖墙体(垂直加固、斜交叉加固)和一榀对比墙体进行拟静力试验,考察砖墙体裂缝开展、屈服及破坏等受力全过程,分析了其滞回特性、延性、骨架曲线、刚度退化等抗震性能。结果表明:预应力墙体主要表现为剪压破坏形态; 垂直预应力加固能显著提高墙体的开裂荷载,而斜交叉预应力筋加固方式可以更有效提高其极限荷载及后期抗侧刚度; 初期预应力筋应力呈线性关系变化,垂直、斜交叉外侧筋最大应力增量分别为146.15和154.73 MPa。
Abstract:
The three unreinforced masonry walls with opening(including two walls strengthened by the prestressing force applied to the vertical and diagonal prestressing tendons,one companion control wall)subjected to lateral cyclic loading were tested.The crack development,yielding and breakage of the three walls were presented,including discussion on the seismic performance in terms of failure processes and patterns,hysteretic characteristics and skeleton curve,ductility and stiffness degradation.The experimental results indicated that the typical failure mode of prestressed wall was shear-compression failure; the vertical prestressing technique was significantly effective in improving cracking load; the diagonal prestressing technique was more significantly effective in increasing the ultimate load and lateral stiffness.The initial stress of the prestressing tendon had a linear relationship,the stress of the vertical and diagonal prestressing tendons were increased by 146.15 and 154.73 MPa,respectively.

参考文献/References:

[1] SCHNEIDER R R,DICKEY W L.Reinforced masonry design [M].New Jersey:Prentice Hall,1994.
[2] LAURSEN P T,INGHAM J M.Structural testing of large-scale posttensioned concrete masonry walls[J].Journal of structural engineering,2004,130(10):1497.
[3] VOON K C,INGHAM J M.Experimental in-plane strength investigation of reinforced concrete masonry walls with openings [J].Journal of structural engineering ASCE,2008,134(5):758.
[4] YANG K H,JOO D B.In-plane seismic performance of unreinforced masonry walls strengthened with unbonded prestressed wire rope units [J].Engineering structures,2012,45:449.
[5] 刘桂秋,施楚贤,黄靓.对砌体剪-压破坏准则的研究[J].湖南大学学报(自然科学版),2007,34(4):19.
[6] MA R,JIANG L,HE M.Experimental investigations on masonry structures using external prestressing techniques for improving seismic performance [J].Engineering structures,2012,42:297.
[7] 蒋璐.砌体结构体外预应力加固技术设计方法及施工实现[J].石家庄铁道大学学报(自然科学版),2016,29(3):7.
[8] 华少锋,刘航.某多层砖混房屋后张预应力加固技术研究及应用[J].建筑结构,2013,43(增刊1):1412.
[9] 孙伟民,胡晓明,张怀金.水平低周反复荷载下预应力砌体墙抗震承载力试验研究[J].南京工业大学学报(自然科学版),2004,26(2):1.
[10] 尹新生,桑艳丽,徐蕾.已建砌体房屋低预应力度体外预应力砌体墙抗震加固研究[J].土木工程学报,2010(增刊1):458.
[11] 祝百茹,刘海卿.体外预应力筋加固砌体结构抗震仿真分析[J].长江科学院院报,2013,30(11):86.
[12] 陈红媛,房贞政.设有圈梁与构造柱的砌体结构预应力筋抗震加固试验研究[J].地震工程与工程振动,2011,31(4):120.
[13] 徐秀凤,王涛,韩明杰,等.加固砌体结构试验破坏评估与模拟[J].地震工程与工程振动,2011,35(6):8.
[14] 刘航,班力壬,兰春光,等.后张预应力加固无筋砖砌墙体抗震性能试验研究[J].建筑结构学报,2015,36(8):142.
[15] 刘航,华少锋.后张预应力加固砖砌体墙体抗震性能试验研究[J].工程抗震与加固改造,2013,35(5):71.
[16] 刘航,韩明杰,兰春光,等.预应力加固两层足尺砖砌体房屋模型抗震性能试验研究[J].土木工程学报,2016,49(3):43.

相似文献/References:

[1]杨会峰,朱文祥,郝建东,等.体外预应力胶合木梁抗弯性能试验研究[J].南京工业大学学报(自然科学版),2016,38(05):68.[doi:10.3969/j.issn.1671-7627.2016.05.011]
 YANG Huifeng,ZHU Wenxiang,HAO Jiandong,et al.Experimental study on the flexural behaviors of external prestressed glulam beams[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2016,38(03):68.[doi:10.3969/j.issn.1671-7627.2016.05.011]

备注/Memo

备注/Memo:
收稿日期:2016-12-30
基金项目:国家自然科学基金(50708045)
作者简介:徐振文(1990—),男,江苏连云港人,硕士,主要研究方向为预应力砌体结构; 郭樟根(联系人),副教授,E-mail:zhgguo@njtech.edu.cn.
引用本文:徐振文,周志强,郑松林,等.体外预应力加固砖砌体开洞墙抗震性能试验[J].南京工业大学学报(自然科学版),2018,40(3):61-66..
更新日期/Last Update: 2018-05-31