TY - GEN
T1 - Structural Behavior of Axially Loaded Geopolymer Concrete Sandwich Wall Panel Reinforced with BFRP Grids
AU - Kumar, Sushil
AU - Chen, Binqi
AU - Xu, Yuye
AU - Dai, Jian Guo
N1 - Funding Information:
The authors would like to express their gratitude to the National Key Research Program of China (Grant No: 2017YFC0703002), Hong Kong RGC General Research Fund (Project code: 15214517), the Construction Industry Council, Hong Kong SAR (Project code: K-ZJK2), and the National Science Foundation of China (NSFC) Project (Nos. 51638008 and 51778247) for the financial support to this research project. The authors are also grateful to the College of Civil Engineering, Huaqiao University, Xiamen, China, for providing access to the lab facility to carry out experimental works.
Funding Information:
Acknowledgments. The authors would like to express their gratitude to the National Key Research Program of China (Grant No: 2017YFC0703002), Hong Kong RGC General Research Fund (Project code: 15214517), the Construction Industry Council, Hong Kong SAR (Project code: K-ZJK2), and the National Science Foundation of China (NSFC) Project (Nos. 51638008 and 51778247) for the financial support to this research project. The authors are also grateful to the College of Civil Engineering, Huaqiao University, Xiamen, China, for providing access to the lab facility to carry out experimental works.
Publisher Copyright:
© 2022, The Author(s), under exclusive license to Springer Nature Switzerland AG.
PY - 2021/11
Y1 - 2021/11
N2 - A new type of precast concrete sandwich wall panel, consisting of two basalt fiber reinforced polymer (FRP) reinforced geopolymer concrete wythes and an insulation layer, which are connected with hollow tubular glass FRP connectors, is studied in this paper. Ten sandwich wall panels were prefabricated and subjected to concentric axial loading. The primary test variables included slenderness ratio of the wall panel, longitudinal spacing of connectors, and the ratio of the wythe thickness to the insulation layer thickness. The load-deflection relationships, failure modes, and load-strain relationships were carefully investigated. All the wall panels failed by crushing of concrete. The spacing of FRP connectors was found to have a marginal impact on the axial load capacity because of the existence of capping beams at the end of panels. A theoretical second-order analysis was performed to predict the ultimate axial load of equivalently assumed solid wall panels. The effective slenderness ratio of the sandwich wall panel was deduced from the comparison of the theoretically predicted results with the experimental ones.
AB - A new type of precast concrete sandwich wall panel, consisting of two basalt fiber reinforced polymer (FRP) reinforced geopolymer concrete wythes and an insulation layer, which are connected with hollow tubular glass FRP connectors, is studied in this paper. Ten sandwich wall panels were prefabricated and subjected to concentric axial loading. The primary test variables included slenderness ratio of the wall panel, longitudinal spacing of connectors, and the ratio of the wythe thickness to the insulation layer thickness. The load-deflection relationships, failure modes, and load-strain relationships were carefully investigated. All the wall panels failed by crushing of concrete. The spacing of FRP connectors was found to have a marginal impact on the axial load capacity because of the existence of capping beams at the end of panels. A theoretical second-order analysis was performed to predict the ultimate axial load of equivalently assumed solid wall panels. The effective slenderness ratio of the sandwich wall panel was deduced from the comparison of the theoretically predicted results with the experimental ones.
KW - Axial loading
KW - BFRP reinforcement
KW - FRP connector
KW - Geopolymer concrete
KW - Precast sandwich panel
UR - http://www.scopus.com/inward/record.url?scp=85121931810&partnerID=8YFLogxK
U2 - 10.1007/978-3-030-88166-5_86
DO - 10.1007/978-3-030-88166-5_86
M3 - Conference article published in proceeding or book
AN - SCOPUS:85121931810
SN - 9783030881658
T3 - Lecture Notes in Civil Engineering
SP - 980
EP - 992
BT - 10th International Conference on FRP Composites in Civil Engineering - Proceedings of CICE 2020/2021
A2 - Ilki, Alper
A2 - Ispir, Medine
A2 - Inci, Pinar
PB - Springer Science and Business Media Deutschland GmbH
T2 - 10th International Conference on Fibre-Reinforced Polymer (FRP) Composites in Civil Engineering, CICE 2021
Y2 - 8 December 2021 through 10 December 2021
ER -