Assessment of the tensile behaviour of post-installed screw anchors in early age concrete

被引：4

作者：

Obayes, Osamah ^{[1
,2
]}

Gad, Emad ^{[1
]}

Pokharel, Tilak ^{[3
]}

Lee, Jessey ^{[1
]}

Abdouka, Kamiran ^{[1
]}

机构：

[1] Swinburne Univ Technol, Dept Civil & Construct Engn, POB 218, Hawthorn, Vic 3122, Australia

[2] Univ Baghdad, Civil Engn Dept, Baghdad 10070, Iraq

[3] Swinburne Univ Technol, Sch Engn, POB 218, Hawthorn, Vic 3122, Australia

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2022年 / 331卷

基金：

澳大利亚研究理事会;

关键词：

Post-installed anchors; Fasteners; Screw anchors; Early-age concrete; CC method;

D O I：

10.1016/j.conbuildmat.2022.127350

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

This study investigates the tensile behaviour of post-installed screw anchors in early-age concrete. The investigation included an experimental study including testing of 38 screw anchors at 6 different hydration ages. The experimental program aimed to investigate: (i) the effect of early-age installation on the 28 day behaviour; (ii) and performance when screw anchors are installed and tested in early-age concrete. The experimental results demonstrated the capability of the concrete capacity method model in capturing the behaviour of screw anchors in early-age concrete with reasonable accuracy. Further, early-age installation of screw anchors did not impact the performance of the anchors when tested in tension at 28 days. This study also included a detailed finite element analysis of screw anchors in early-age concrete to further understand the behaviour of this type of anchors and the failure mechanism governing the capacity under pure tension loading.

引用

页数：11

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