[1]吴涛,成然,刘全威.钢制灌浆套筒连接性能试验研究[J].西安建筑科技大学学报(自然科学版),2018,50(03):309-0316,0323.[doi:10.15986/j.1006-7930.2018.03.001]
　WU Tao,CHENG Ran,LIU Quanwei.Experimental research on connection performance of steel grouted sleeve splice[J].J. Xi’an Univ. of Arch. & Tech.(Natural Science Edition),2018,50(03):309-0316,0323.[doi:10.15986/j.1006-7930.2018.03.001]
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钢制灌浆套筒连接性能试验研究
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西安建筑科技大学学报（自然科学版）[ISSN:1006-7930/CN:61-1295/TU]

卷:
50
期数:
2018年03期
页码:
309-0316,0323
栏目:
出版日期:
2018-06-30

文章信息/Info

Title:
Experimental research on connection performance of steel grouted sleeve splice
文章编号:
1006-7930(2018)03-0309-08
作者:
吴涛; 成然; 刘全威
（长安大学 建筑工程学院，陕西 西安 710061）
Author(s):
WU Tao;  CHENG Ran;  LIU Quanwei
(School of Civil Engineering, Chang′an university, Xi′an 710061, China)
关键词:
预制装配式结构; 小型化套筒; 拉拔试验; Mises屈服准则; 筒壁应力
Keywords:
precast concrete structure;  miniaturized grouted sleeve;  direct tensile load test;  Mises yield criterion;  sleeve wall stress
分类号:
TU375
DOI:
10.15986/j.1006-7930.2018.03.001
文献标志码:
A
摘要:
为了降低套筒成本，方便现场施工，在前期试验的基础上，设计制作了一组小型化钢制套筒，完成了31个小型化套筒灌浆连接件的拉拔试验，并基于Mises屈服准则对筒壁应力的实测值与计算值进行了对比.结果表明：当钢筋锚固长度为1.0la(la为套筒灌浆钢筋计算锚固长度)时，除一个试件滑丝外，18个试件均为接头外钢筋拉断破坏，且抗拉强度均大于连接钢筋抗拉强度标准值；当钢筋锚固长度为0.6la时，除一个试件钢筋拉断外，11个试件均为钢筋拔出破坏，且残余承载力约为试件极限承载力的1/2；筒壁应力的实测值与计算值吻合较好，建立的筒壁应力计算式可以为灌浆套筒设计提供参考.
Abstract:
In order to reduce the size and cost of the grouted sleeve, and provide convenience for site construction, a set of miniaturized grouted sleeves were designed at the basis of the previous experimental study. The direct tensile load test of 31 miniaturized grouted sleeve splices were completed, and the measured values of the wall stress were compared with the calculated values based on the Mises yield criterion. The results show that when the anchorage length is 1.0la (la is the calculated anchorage length of steel bar in the grouted sleeve), the 18 specimens are steel bar rupture failure outside the joint in addition to a specimen slip screw, and the tensile strength is greater than specified tensile strength of the splice bar For the specimens of anchorage length is 0.6la, the 11 specimens are pullout failure in addition to a specimen is steel bar rupture, and the residual bearing capacity can reach about half of the ultimate bearing capacity of the specimens. The calculated values of the sleeve wall stress based on the Mises yield criterion are in good agreement with the measured values, and the calculation formula of the sleeve wall stress can be used as a reference for the design of the grouted sleeve splice.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2017-05-31修改稿日期:2018-05-22
基金项目:国家自然科学基金项目(51578072)；陕西省自然科学基金(2016JM5070)；陕西省科技统筹创新工程计划项目(2015KTZDSF03-04)
第一作者:吴涛(1976-)，男，博士，教授，主要从事钢筋混凝土结构基本理论及工程结构抗震性能研究．E-mail: wutao@chd.edu.cn
更新日期/Last Update: 2018-09-10