Experimental Investigation on the Shear Behaviour of Stud-Bolt Connectors of Steel-Concrete-Steel Fibre-Reinforced Recycled Aggregates Sandwich Panels

被引：18

作者：

Karimipour, Arash ^{[1
,2
]}

Ghalehnovi, Mansour ^{[3
]}

Golmohammadi, Mohammad ^{[4
]}

de Brito, Jorge ^{[5
]}

机构：

[1] Univ Texas El Paso UTEP, Dept Civil Engn, El Paso, TX 79968 USA

[2] Univ Texas El Paso UTEP, Ctr Transportat Infrastruct Syst CTIS, El Paso, TX 79968 USA

[3] Ferdowsi Univ Mashhad, Dept Civil Engn, Mashhad 9177948944, Razavi Khorasan, Iran

[4] Univ Torbat Heydarieh, Dept Civil Engn, Fac Engn, Torbat Heydarieh 9516168595, Iran

[5] Univ Lisbon, Dept Civil Engn Architecture & Georresources, Inst Super Tecn, P-1649004 Lisbon, Portugal

来源：

MATERIALS | 2021年 / 14卷 / 18期

基金：

英国科研创新办公室;

关键词：

bolt connectors; fibre-reinforced concrete; steel-concrete-steel sandwich; shear behaviour; ultimate load; PUSH-OUT TESTS; HIGH-STRENGTH; POLYPROPYLENE FIBERS; FLEXURAL BEHAVIOR; COMPOSITE; PERFORMANCE; RESISTANCE; MODEL; SIMULATION; GEOPOLYMER;

D O I：

10.3390/ma14185185

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Steel-concrete-steel (SCS) sandwich panels are manufactured with two thin high-strength steel plates and a moderately low-density and low-strength thick concrete core. In this study, 24 specimens were produced and tested. In these specimens, a new stud-bolt connector was used to regulate its shear behaviour in sandwich panels. The bolts' diameter, concrete core's thickness and bolts' spacing were the parameters under analysis. Furthermore, the concrete core was manufactured with normal-strength concrete and steel fibres concrete (SFC). Steel fibres were added at 1% by volume. In addition, the recycled coarse aggregate was used at 100% in terms of mass instead of natural coarse aggregate. Therefore, the ultimate bearing capability and slip of the sandwich panels were recorded, and the failure mode and ductility index of the specimens were evaluated. A new formula was also established to determine the shear strength of SCS panels with this kind of connectors. According to this study, increasing the diameter of the stud-bolts or using SFC in sandwich panels improve their shear strength and ductility ratio.

引用

页数：32

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