Simplified impact force models for novel FRP-steel–concrete composite columns under axial impact loading

Huiyu Bai; Daiyu Wang; Tao Yu; Changhai Zhai

doi:10.1016/j.istruc.2023.105273

Simplified impact force models for novel FRP-steel–concrete composite columns under axial impact loading

Huiyu Bai
, Daiyu Wang^*
, Tao Yu
, Changhai Zhai

^*Corresponding author for this work

School of Civil Engineering

School of Civil Engineering, Harbin Institute of Technology
Harbin Institute of Technology
Hong Kong Polytechnic University

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

This study aims to investigate the axial impact resistance of FRP tube-confined concrete-encased cross-shaped steel column (FCCSC). The numerical simulations were conducted utilizing the ABAQUS software. The finite element (FE) models developed in this study were validated and upgraded by fitting the relevant test data of FRP-confined concrete-filled steel tube (FCFST). Subsequently, a significant number of models were established and executed with four variable parameters, namely impact mass, impact velocity, concrete strength and FRP tube thickness. Based on the analysis results, typical axial impact states were summarized and defined. Then, the simplified impact force time history models were developed for predicting the dynamic responses of FCCSCs subjected to axial impact loads. The dynamic damage index for axial impact resistance and the corresponding design flow of FCCSCs also have been proposed.

Original language	English
Article number	105273
Journal	Structures
Volume	57
DOIs	https://doi.org/10.1016/j.istruc.2023.105273
State	Published - Nov 2023

Keywords

Axial impact performance
Composite columns
Damage states
Dynamic damage index
Numerical simulations

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10.1016/j.istruc.2023.105273

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@article{f2345ad6c555424e93e594dacc2f5cec,

title = "Simplified impact force models for novel FRP-steel–concrete composite columns under axial impact loading",

abstract = "This study aims to investigate the axial impact resistance of FRP tube-confined concrete-encased cross-shaped steel column (FCCSC). The numerical simulations were conducted utilizing the ABAQUS software. The finite element (FE) models developed in this study were validated and upgraded by fitting the relevant test data of FRP-confined concrete-filled steel tube (FCFST). Subsequently, a significant number of models were established and executed with four variable parameters, namely impact mass, impact velocity, concrete strength and FRP tube thickness. Based on the analysis results, typical axial impact states were summarized and defined. Then, the simplified impact force time history models were developed for predicting the dynamic responses of FCCSCs subjected to axial impact loads. The dynamic damage index for axial impact resistance and the corresponding design flow of FCCSCs also have been proposed.",

keywords = "Axial impact performance, Composite columns, Damage states, Dynamic damage index, Numerical simulations",

author = "Huiyu Bai and Daiyu Wang and Tao Yu and Changhai Zhai",

note = "Publisher Copyright: {\textcopyright} 2023 Institution of Structural Engineers",

year = "2023",

month = nov,

doi = "10.1016/j.istruc.2023.105273",

language = "英语",

volume = "57",

journal = "Structures",

issn = "2352-0124",

publisher = "Elsevier Ltd",

}

TY - JOUR

T1 - Simplified impact force models for novel FRP-steel–concrete composite columns under axial impact loading

AU - Bai, Huiyu

AU - Wang, Daiyu

AU - Yu, Tao

AU - Zhai, Changhai

PY - 2023/11

Y1 - 2023/11

N2 - This study aims to investigate the axial impact resistance of FRP tube-confined concrete-encased cross-shaped steel column (FCCSC). The numerical simulations were conducted utilizing the ABAQUS software. The finite element (FE) models developed in this study were validated and upgraded by fitting the relevant test data of FRP-confined concrete-filled steel tube (FCFST). Subsequently, a significant number of models were established and executed with four variable parameters, namely impact mass, impact velocity, concrete strength and FRP tube thickness. Based on the analysis results, typical axial impact states were summarized and defined. Then, the simplified impact force time history models were developed for predicting the dynamic responses of FCCSCs subjected to axial impact loads. The dynamic damage index for axial impact resistance and the corresponding design flow of FCCSCs also have been proposed.

AB - This study aims to investigate the axial impact resistance of FRP tube-confined concrete-encased cross-shaped steel column (FCCSC). The numerical simulations were conducted utilizing the ABAQUS software. The finite element (FE) models developed in this study were validated and upgraded by fitting the relevant test data of FRP-confined concrete-filled steel tube (FCFST). Subsequently, a significant number of models were established and executed with four variable parameters, namely impact mass, impact velocity, concrete strength and FRP tube thickness. Based on the analysis results, typical axial impact states were summarized and defined. Then, the simplified impact force time history models were developed for predicting the dynamic responses of FCCSCs subjected to axial impact loads. The dynamic damage index for axial impact resistance and the corresponding design flow of FCCSCs also have been proposed.

KW - Axial impact performance

KW - Composite columns

KW - Damage states

KW - Dynamic damage index

KW - Numerical simulations

UR - https://www.scopus.com/pages/publications/85171781645

U2 - 10.1016/j.istruc.2023.105273

DO - 10.1016/j.istruc.2023.105273

M3 - 文章

AN - SCOPUS:85171781645

SN - 2352-0124

VL - 57

JO - Structures

JF - Structures

M1 - 105273

ER -

Simplified impact force models for novel FRP-steel–concrete composite columns under axial impact loading

Abstract

Keywords

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