Imperial College London
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ProfessorLeroyGardner

Faculty of Engineering, Department of Civil and Environmental Engineering

Professor of Structural Engineering
 
 
 
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Contact

 

+44 (0)20 7594 6058leroy.gardner

 
 
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Location

 

435Skempton BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Zhu:2023,
author = {Zhu, Y and Gardner, L and Yang, H},
journal = {Thin Walled Structures},
pages = {1--16},
title = {Experimental investigation into the transverse impact performance of high-strength circular CFST members},
url = {https://www.sciencedirect.com/science/article/pii/S0263823123004019?via%3Dihub},
volume = {189},
year = {2023}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Both high-strength steel and high-strength concrete are gaining increasing use in the construction industry. Atthe same time, the benefits of composite construction are also being increasingly recognized and exploited. Inthe present study, high-strength steel and high-strength concrete are considered in combination in high-strengthconcrete-filled high-strength steel tubular (HSCFST) members, with a focus on their behaviour under transverseimpact loading, resistance to which is important for resilient infrastructure. Tests on thirteen HSCFST specimensand six reference CFST specimens under drop weight impact loading are presented. Hot-finished high-strengthS890 steel sections were employed for the outer tubes of the HSCFST specimens, while hot-finished S355 steeltubes were used for the reference CFST specimens. Two core concrete strengths of approximately 60 MPa and100 MPa were considered. The instantaneous impact force and deformation histories of the specimens wererecorded at high frequencies throughout the impact process. A single-degree-of-freedom (SDOF) model wasdeveloped and used to facilitate the analysis of the experimental results. The dynamic moment capacities ofthe test specimens were obtained using the developed SDOF model and a dynamic increase factor (d) wasintroduced to quantify the enhancement in moment capacity relative to the static values. The influence ofthe test parameters on the dynamic increase factors was then analysed. The test results indicated that dispositively correlated with the impact velocity and negatively correlated with the steel grade, steel ratio andspecimen length, while being insensitive to the concrete strength.
AU  - Zhu,Y
AU  - Gardner,L
AU  - Yang,H
EP  - 16
PY  - 2023///
SN  - 0263-8231
SP  - 1
TI  - Experimental investigation into the transverse impact performance of high-strength circular CFST members
T2  - Thin Walled Structures
UR  - https://www.sciencedirect.com/science/article/pii/S0263823123004019?via%3Dihub
UR  - http://hdl.handle.net/10044/1/104750
VL  - 189
ER  -
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