Performance of concrete-encased CFST column-to-beam 3-D joints under seismic loading: Analysis

Wei Li; Dan Yang Ma; Li Feng Xu; Wei Wu Qian

doi:10.1016/j.engstruct.2021.113661

Performance of concrete-encased CFST column-to-beam 3-D joints under seismic loading: Analysis

Wei Li^*
, Dan Yang Ma
, Li Feng Xu
, Wei Wu Qian

^*Corresponding author for this work

Tsinghua University

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

18 Scopus citations

Abstract

A numerical model of the concrete-encased concrete-filled steel tubular (CFST) column to steel beam joint was established to thoroughly discover the seismic performance of joints. The model was verified by experimental results in terms of failure patterns, hysteretic relationships and strain distributions. The stress and force distributions of different components were analyzed for joints under different loading phases, and comparisons were made between planar and 3-dimensional (3-D) joints. The parametric study was conducted to reveal effects of key parameters by verified numerical models. Furthermore, strength prediction models were proposed for both planar and 3-D joints, and the hysteretic model of panel zone for planar joint was established to describe the structural behaviour under cyclic loading.

Original language	English
Article number	113661
Journal	Engineering Structures
Volume	252
DOIs	https://doi.org/10.1016/j.engstruct.2021.113661
State	Published - 1 Feb 2022
Externally published	Yes

Keywords

Beam-to-column 3-D joint
Concrete-encased CFST column
Finite element (FE) model
Hysteretic model
Seismic performance

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10.1016/j.engstruct.2021.113661

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title = "Performance of concrete-encased CFST column-to-beam 3-D joints under seismic loading: Analysis",

abstract = "A numerical model of the concrete-encased concrete-filled steel tubular (CFST) column to steel beam joint was established to thoroughly discover the seismic performance of joints. The model was verified by experimental results in terms of failure patterns, hysteretic relationships and strain distributions. The stress and force distributions of different components were analyzed for joints under different loading phases, and comparisons were made between planar and 3-dimensional (3-D) joints. The parametric study was conducted to reveal effects of key parameters by verified numerical models. Furthermore, strength prediction models were proposed for both planar and 3-D joints, and the hysteretic model of panel zone for planar joint was established to describe the structural behaviour under cyclic loading.",

keywords = "Beam-to-column 3-D joint, Concrete-encased CFST column, Finite element (FE) model, Hysteretic model, Seismic performance",

author = "Wei Li and Ma, \{Dan Yang\} and Xu, \{Li Feng\} and Qian, \{Wei Wu\}",

note = "Publisher Copyright: {\textcopyright} 2021 Elsevier Ltd",

year = "2022",

month = feb,

day = "1",

doi = "10.1016/j.engstruct.2021.113661",

language = "英语",

volume = "252",

journal = "Engineering Structures",

issn = "0141-0296",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Performance of concrete-encased CFST column-to-beam 3-D joints under seismic loading

T2 - Analysis

AU - Li, Wei

AU - Ma, Dan Yang

AU - Xu, Li Feng

AU - Qian, Wei Wu

PY - 2022/2/1

Y1 - 2022/2/1

N2 - A numerical model of the concrete-encased concrete-filled steel tubular (CFST) column to steel beam joint was established to thoroughly discover the seismic performance of joints. The model was verified by experimental results in terms of failure patterns, hysteretic relationships and strain distributions. The stress and force distributions of different components were analyzed for joints under different loading phases, and comparisons were made between planar and 3-dimensional (3-D) joints. The parametric study was conducted to reveal effects of key parameters by verified numerical models. Furthermore, strength prediction models were proposed for both planar and 3-D joints, and the hysteretic model of panel zone for planar joint was established to describe the structural behaviour under cyclic loading.

AB - A numerical model of the concrete-encased concrete-filled steel tubular (CFST) column to steel beam joint was established to thoroughly discover the seismic performance of joints. The model was verified by experimental results in terms of failure patterns, hysteretic relationships and strain distributions. The stress and force distributions of different components were analyzed for joints under different loading phases, and comparisons were made between planar and 3-dimensional (3-D) joints. The parametric study was conducted to reveal effects of key parameters by verified numerical models. Furthermore, strength prediction models were proposed for both planar and 3-D joints, and the hysteretic model of panel zone for planar joint was established to describe the structural behaviour under cyclic loading.

KW - Beam-to-column 3-D joint

KW - Concrete-encased CFST column

KW - Finite element (FE) model

KW - Hysteretic model

KW - Seismic performance

UR - https://www.scopus.com/pages/publications/85120994772

U2 - 10.1016/j.engstruct.2021.113661

DO - 10.1016/j.engstruct.2021.113661

M3 - 文章

AN - SCOPUS:85120994772

SN - 0141-0296

VL - 252

JO - Engineering Structures

JF - Engineering Structures

M1 - 113661

ER -

Performance of concrete-encased CFST column-to-beam 3-D joints under seismic loading: Analysis

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Keywords

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