Experimental investigation on the shear performance of pultruded GFRP connectors in composite prefabricated concrete sandwich panels

被引：0

作者：

Sah, Tilak Prasad ^{[1
]}

Lacey, Andrew William ^{[1
]}

Li, Zhixing ^{[1
]}

Hao, Hong ^{[1
,2
]}

Chen, Wensu ^{[1
]}

机构：

[1] Curtin Univ, Ctr Infrastructural Monitoring & Protect, Sch Civil & Mech Engn, Perth, Australia

[2] Guangzhou Univ, Earthquake Engn Res & Test Ctr, Guangzhou, Peoples R China

来源：

ENGINEERING STRUCTURES | 2025年 / 342卷

基金：

澳大利亚研究理事会;

关键词：

Pultruded GFRP; Square and Circular tubes; Shear connectors; Prefabricated concrete sandwich panel (PCSP); Double shear test; BEHAVIOR;

D O I：

10.1016/j.engstruct.2025.120928

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

In this study, two new types of composite shear connectors made of hollow square and circular pultruded GFRP (glass fibre reinforced polymer) profiles were proposed for composite prefabricated concrete sandwich panel (PCSP). A total of 20 specimens (two specimens for each parameter) were prepared and double shear tests were carried out to investigate the shear resistance and failure modes of the proposed connectors. The effects of connector direction, thickness of insulation, and shape of the connectors were studied and discussed by comparing the shear force-slip responses of the connectors. It was revealed that the connectors installed in tension direction could provide significantly higher shear resistance compared to the connectors installed in a straight or compression direction. The shear force resisted by connectors in tension direction was more than two times that of connectors in straight direction, which have been most commonly used. Despite having similar dimensions, the square connectors provided better shear resistance than the circular connectors, owing to their greater cross-sectional area and moment of inertia. In addition, the combination of connectors in tension and compression directions enhanced the stiffness of the connectors in resisting the shear force.

引用

页数：15

共 43 条

[1]

Lacey A.W., Chen W., Hao H., Bi K., Structural response of modular buildings – An overview, J Build Eng, 16, pp. 45-56, (2018)

[2]

Jaillon L., Poon C.S., The evolution of prefabricated residential building systems in Hong Kong: a review of the public and the private sector, Autom Constr, 18, pp. 239-248, (2009)

[3]

(2008)

[4]

Sah T.P., Lacey A.W., Hao H., Chen W., Prefabricated concrete sandwich and other lightweight wall panels for sustainable building construction: state-of-the-art review, J Build Eng, 89, (2024)

[5]

Maguire M., Al-Rubaye S., Tilt-up partially composite insulated wall panels, Univ NebLinc, (2022)

[6]

Tomlinson D.G., Teixeira N., Fam A., New shear connector design for insulated concrete sandwich panels using basalt fiber-reinforced polymer bars, J Compos Constr, 20, 4, (2016)

[7]

Hamed E., Negru D., Yalda R., Structural performance of precast concrete sandwich panels made with FRP vierendeel truss–like connectors, J Compos Constr, 26, 3, (2022)

[8]

Egbon B., Tomlinson D., Simplified load-deflection analytical model for partially composite insulated concrete wall panels under flexural loading, Eng Struct, 304, (2024)

[9]

Kang J., Composite and non-composite behaviors of foam-insulated concrete sandwich panels, Compos B Eng, 68, pp. 153-161, (2015)

[10]

(2017)

← 1 2 3 4 5 →