Experimental tests on composite beam-column joint with WUF-B connection subjected to impact loads

Kang Chen; Bo Yang; Yao Zhang; Kang Hai Tan

doi:10.1016/j.ijimpeng.2023.104506

Experimental tests on composite beam-column joint with WUF-B connection subjected to impact loads

Kang Chen, Bo Yang, Yao Zhang^*, Kang Hai Tan^*

^*Corresponding author for this work

Department of Civil Engineering

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

8 Citations (Scopus)

Abstract

This paper presents a test programme on composite welded unreinforced flange-bolted web (WUF-B) joints subjected to impact loads from a drop-weight test machine. A total of four beam-column joints were designed and tested to investigate the governing parameters including the impact velocity, joint type and slab thickness of composite decking. Structural responses such as impact force, axial force and bending moment developed at the joints were presented. Typical failure modes for the middle and side joints were shown and discussed. Besides, development of strains at different locations of the joints, as well as strain rate effect on material strength was investigated. A comparison of design predictions and measured values of tying resistance, flexural resistance and rotation capacities was conducted. In addition, a comparison with the similar specimens but subjected to quasi-static tests was conducted. It was found that the strain rate effect could enhance flexural resistance and tying resistance but reduce the ultimate rotation capacity. Composite slab effect would enhance flexural resistance but reduce tying resistance.

Original language	English
Article number	104506
Journal	International Journal of Impact Engineering
Volume	174
DOIs	https://doi.org/10.1016/j.ijimpeng.2023.104506
Publication status	Published - Apr 2023

Keywords

Composite joint
Impact load
Progressive collapse
Strain rate
WUF-b

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title = "Experimental tests on composite beam-column joint with WUF-B connection subjected to impact loads",

abstract = "This paper presents a test programme on composite welded unreinforced flange-bolted web (WUF-B) joints subjected to impact loads from a drop-weight test machine. A total of four beam-column joints were designed and tested to investigate the governing parameters including the impact velocity, joint type and slab thickness of composite decking. Structural responses such as impact force, axial force and bending moment developed at the joints were presented. Typical failure modes for the middle and side joints were shown and discussed. Besides, development of strains at different locations of the joints, as well as strain rate effect on material strength was investigated. A comparison of design predictions and measured values of tying resistance, flexural resistance and rotation capacities was conducted. In addition, a comparison with the similar specimens but subjected to quasi-static tests was conducted. It was found that the strain rate effect could enhance flexural resistance and tying resistance but reduce the ultimate rotation capacity. Composite slab effect would enhance flexural resistance but reduce tying resistance.",

keywords = "Composite joint, Impact load, Progressive collapse, Strain rate, WUF-b",

author = "Kang Chen and Bo Yang and Yao Zhang and Tan, {Kang Hai}",

note = "Funding Information: The authors gratefully acknowledge Ministry of Home Affairs (MHA) , Singapore to provide the funding (MHA 191/9/1/345 ) under the Protective Technology Research Centre, Nanyang Technological University, Singapore. Any opinions, findings and conclusions expressed in this paper are those of the writers and do not necessarily reflect the view of MHA, Singapore. Publisher Copyright: {\textcopyright} 2023",

year = "2023",

month = apr,

doi = "10.1016/j.ijimpeng.2023.104506",

language = "English",

volume = "174",

journal = "International Journal of Impact Engineering",

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AU - Chen, Kang

AU - Yang, Bo

AU - Zhang, Yao

AU - Tan, Kang Hai

N1 - Funding Information: The authors gratefully acknowledge Ministry of Home Affairs (MHA) , Singapore to provide the funding (MHA 191/9/1/345 ) under the Protective Technology Research Centre, Nanyang Technological University, Singapore. Any opinions, findings and conclusions expressed in this paper are those of the writers and do not necessarily reflect the view of MHA, Singapore. Publisher Copyright: © 2023

PY - 2023/4

Y1 - 2023/4

N2 - This paper presents a test programme on composite welded unreinforced flange-bolted web (WUF-B) joints subjected to impact loads from a drop-weight test machine. A total of four beam-column joints were designed and tested to investigate the governing parameters including the impact velocity, joint type and slab thickness of composite decking. Structural responses such as impact force, axial force and bending moment developed at the joints were presented. Typical failure modes for the middle and side joints were shown and discussed. Besides, development of strains at different locations of the joints, as well as strain rate effect on material strength was investigated. A comparison of design predictions and measured values of tying resistance, flexural resistance and rotation capacities was conducted. In addition, a comparison with the similar specimens but subjected to quasi-static tests was conducted. It was found that the strain rate effect could enhance flexural resistance and tying resistance but reduce the ultimate rotation capacity. Composite slab effect would enhance flexural resistance but reduce tying resistance.

AB - This paper presents a test programme on composite welded unreinforced flange-bolted web (WUF-B) joints subjected to impact loads from a drop-weight test machine. A total of four beam-column joints were designed and tested to investigate the governing parameters including the impact velocity, joint type and slab thickness of composite decking. Structural responses such as impact force, axial force and bending moment developed at the joints were presented. Typical failure modes for the middle and side joints were shown and discussed. Besides, development of strains at different locations of the joints, as well as strain rate effect on material strength was investigated. A comparison of design predictions and measured values of tying resistance, flexural resistance and rotation capacities was conducted. In addition, a comparison with the similar specimens but subjected to quasi-static tests was conducted. It was found that the strain rate effect could enhance flexural resistance and tying resistance but reduce the ultimate rotation capacity. Composite slab effect would enhance flexural resistance but reduce tying resistance.

KW - Composite joint

KW - Impact load

KW - Progressive collapse

KW - Strain rate

KW - WUF-b

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U2 - 10.1016/j.ijimpeng.2023.104506

DO - 10.1016/j.ijimpeng.2023.104506

M3 - Article

AN - SCOPUS:85146849191

SN - 0734-743X

VL - 174

JO - International Journal of Impact Engineering

JF - International Journal of Impact Engineering

M1 - 104506

ER -

Experimental tests on composite beam-column joint with WUF-B connection subjected to impact loads

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Keywords

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