锚筋式埋件节点拉拔试验及有限元分析

马宏伟; 韦增挺; 刘维亚

doi:10.13204/j.gyjzG20110403

锚筋式埋件节点拉拔试验及有限元分析

doi: 10.13204/j.gyjzG20110403

1. 华南理工大学土木与交通学院, 广州 510640;
2. 深圳千典建筑与工程设计顾问有限公司, 广东深圳 518042

基金项目:

亚热带建筑科学国家重点实验室开放课题(2018ZB29)。

详细信息

作者简介:
马宏伟,男,1973年出生,博士,副教授。电子信箱:hwma@scut.edu.cn

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- 文章访问数: 105
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- PDF下载量: 5
- 被引次数: 0
出版历程
- 收稿日期: 2020-11-04
- 网络出版日期: 2022-03-29

PULL-OUT TEST AND FINITE ELEMENT ANALYSIS OF ANCHORAGE-EMBEDDED PARTS

1. School of Civil Engineering and Transportation, South China University of Technology,Guangzhou 510640, China;
2. Shenzhen Qiandian Architectural & Engineering Consult Co., Ltd., Shenzhen 518042, China

摘要

摘要: 锚筋式埋件节点在索支承幕墙中应用广泛,且节点承受较大拉力。为了解拉索节点中锚筋式埋件的实际力学性能,制作了3个单拉索节点试件和2个三拉索节点试件,并对试件进行受拉承载力试验。结果表明:采用锚固长度大于30倍钢筋直径且端部加强的构造时,锚筋式埋件节点中不会出现混凝土与锚筋的黏结滑移破坏,仅出现锚筋的拉断;在三拉索节点中,边索受荷不会影响中索的承载力。另外,针对单拉索节点进行了有限元模拟。对比两者的结果可知,有限元分析所得的单拉索节点荷载-位移曲线与试验所得曲线能够较好地吻合,并且两种曲线的屈服荷载与极限荷载误差均在6%以内。
- 锚筋式埋件 /
- 抗拉承载力 /
- 静力试验 /
- 拉索节点 /
- 有限元分析
Abstract: The connections of anchorage-embedded parts have been widely used in cable-supported curtain walls, which bear large tensile forces. In order to understand the actual mechanical properties of anchorage-embedded parts in connection of cables, 3 specimens of anchorage-embedded parts with a single tensional cable and 2 specimens of anchorage-embedded parts with three tensional cables were fabricated, and the tests of tensile bearing capacity for specimens were performed. The results showed that: when the anchorage length was longer than 30 times the diameter of the steel bar and the end was reinforced, the bond slip failure between the concrete and the anchorage parts would not occur, but only the anchorage parts would break. In the connections, the loads in the side cable would not impact on the bearing capacity of the middle cable. In addition, a single cable connection was simulated by FEM. Comparing the two results, it showed that the load-displacement curve of the anchorage-embedded parts with a single tensional cable obtained by FEM was in good agreement with the curve obtained from tests, and the error of the yield load and the ultimate load all less 6%.
- ahchorage-embedded part /
- tension capacity /
- static test /
- connection of cable /
- finite element analysis

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参考文献(18)

[1]	常华.拉索式点连接全玻璃幕墙的设计与结构分析[D].太原:太原理工大学,2005.
[2]	邱泉,杨春梅,任国亮.俄罗斯远东联邦大学学生中心入口幕墙支承结构选型分析[J].建筑钢结构进展,2013(4):47-52,64.
[3]	殷永炜,张其林,王丹,等.点支式玻璃幕墙索桁架支承体系的结构性能研究[J].结构工程师,2005,21(2):17-21.
[4]	朱奕锋,冯健.点支承玻璃幕墙的柔性支撑体系-索桁架[J].工业建筑,2002,32(5):1-4 ,37.
[5]	王宝珍,张宽权.预埋件计算方法的试验研究[J].建筑结构学报,1981(2):58-66.
[6]	预埋件专题研究组.预埋件的受力性能及设计方法[J].建筑结构学报,1987(3):36-50.
[7]	殷芝霖,李玉温.钢筋混凝土结构中预埋件的设计方法(三):轴心受拉和偏心受拉预埋件[J].工业建筑,1988,18(6):46-54.
[8]	李国强,曲冰,孙飞飞,等.高层建筑混合结构钢梁与混凝土墙节点低周反复加载试验研究[J].建筑结构学报,2003(4):1-7.
[9]	王清湘,朱耀国.大直径锚筋预埋件纯剪、拉剪作用下的试验研究[J].建筑结构学报,2008,29(增刊1):281-286.
[10]	王安彬.火灾后锚筋预埋件的剩余承载力研究[D].北京:北京建筑大学,2013.
[11]	周辉,石国立,李闯,等.超规预埋件足尺承载力试验研究[J].施工技术,2015,44(9):80-86.
[12]	王秀娟,庞翠翠,吕晓寅,等.钢筋混凝土结构预埋件的计算与分析[J].科学技术与工程,2010,10(23):5796-5798.
[13]	马臣杰,钟玉柏,许璇.幕墙预埋件承载力非线性有限元分析[J].建筑结构,2011,41(2):94-96 ,88.
[14]	朱耀国,王清湘.预埋件受剪性能数值分析[J].大连理工大学学报,2014,54(2):210-214.
[15]	ROEDER C W,HAWKINS N M.Connections Between Steel Frames and Concrete Walls[J].Engineering Journal,1981,18:22-29.
[16]	OBATA M,INOUE M,GOTO Y.The Failure Mechanism and the Pull-Out Strength of a Bond-Type Anchor Near a Free Edge[J].Mechanics of Materials,1998,28(1/2/3/4):113-122.
[17]	KHALIL A A,FAWZY T M,TAHER S,et al.New Special Finite Elements for Modeling Reinforcement and Steel-Concrete Interface[J].Engineering Computations,1999,16(5):619-629.
[18]	王蔚,张广杰.中美规范混凝土预埋件设计对比分析[J].港工技术,2016,53(5):46-50.