Improved SDOF Approach to Incorporate the Effects of Axial Loads on the Dynamic Responses of Steel Columns Subjected to Blast Loads

Improved SDOF Approach to Incorporate the Effects of Axial Loads on the Dynamic Responses of Steel Columns Subjected to Blast Loads

In this paper, a complicated single-degree-of-freedom (SDOF) approach was developed to determine the global response of steel columns under combined axial and blast-induced transverse loads. Nonlinear section and member analyses were incorporated into the suggested SDOF method to account for the com...

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Main Authors: Junbo Yan, Yan Liu, Fenglei Huang
Format: Article
Language:English
Published: Hindawi Limited 2019-01-01
Series:Advances in Civil Engineering
Online Access:http://dx.doi.org/10.1155/2019/7810542
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spelling doaj-e158f7540fcd4d1288046db219e4b3262020-11-25T00:44:46ZengHindawi LimitedAdvances in Civil Engineering1687-80861687-80942019-01-01201910.1155/2019/78105427810542Improved SDOF Approach to Incorporate the Effects of Axial Loads on the Dynamic Responses of Steel Columns Subjected to Blast LoadsJunbo Yan0Yan Liu1Fenglei Huang2State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, ChinaState Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, ChinaState Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, ChinaIn this paper, a complicated single-degree-of-freedom (SDOF) approach was developed to determine the global response of steel columns under combined axial and blast-induced transverse loads. Nonlinear section and member analyses were incorporated into the suggested SDOF method to account for the complex features of the material behavior, the high strain rate effect, and the column geometry. The SDOF technique was validated through comparisons with available finite element and experimental data, and a good consistency was obtained. Then, the validated SDOF approach was utilized to derive the pressure-impulse curves under various levels of axial loading. The level of the axial load was shown to have a significant influence on the dynamic behavior of a steel column subjected to a blast load.http://dx.doi.org/10.1155/2019/7810542
collection DOAJ
language English
format Article
sources DOAJ
author Junbo Yan
Yan Liu
Fenglei Huang
spellingShingle Junbo Yan
Yan Liu
Fenglei Huang
Improved SDOF Approach to Incorporate the Effects of Axial Loads on the Dynamic Responses of Steel Columns Subjected to Blast Loads
Advances in Civil Engineering
author_facet Junbo Yan
Yan Liu
Fenglei Huang
author_sort Junbo Yan
title Improved SDOF Approach to Incorporate the Effects of Axial Loads on the Dynamic Responses of Steel Columns Subjected to Blast Loads
title_short Improved SDOF Approach to Incorporate the Effects of Axial Loads on the Dynamic Responses of Steel Columns Subjected to Blast Loads
title_full Improved SDOF Approach to Incorporate the Effects of Axial Loads on the Dynamic Responses of Steel Columns Subjected to Blast Loads
title_fullStr Improved SDOF Approach to Incorporate the Effects of Axial Loads on the Dynamic Responses of Steel Columns Subjected to Blast Loads
title_full_unstemmed Improved SDOF Approach to Incorporate the Effects of Axial Loads on the Dynamic Responses of Steel Columns Subjected to Blast Loads
title_sort improved sdof approach to incorporate the effects of axial loads on the dynamic responses of steel columns subjected to blast loads
publisher Hindawi Limited
series Advances in Civil Engineering
issn 1687-8086
1687-8094
publishDate 2019-01-01
description In this paper, a complicated single-degree-of-freedom (SDOF) approach was developed to determine the global response of steel columns under combined axial and blast-induced transverse loads. Nonlinear section and member analyses were incorporated into the suggested SDOF method to account for the complex features of the material behavior, the high strain rate effect, and the column geometry. The SDOF technique was validated through comparisons with available finite element and experimental data, and a good consistency was obtained. Then, the validated SDOF approach was utilized to derive the pressure-impulse curves under various levels of axial loading. The level of the axial load was shown to have a significant influence on the dynamic behavior of a steel column subjected to a blast load.
url http://dx.doi.org/10.1155/2019/7810542
work_keys_str_mv AT junboyan improvedsdofapproachtoincorporatetheeffectsofaxialloadsonthedynamicresponsesofsteelcolumnssubjectedtoblastloads
AT yanliu improvedsdofapproachtoincorporatetheeffectsofaxialloadsonthedynamicresponsesofsteelcolumnssubjectedtoblastloads
AT fengleihuang improvedsdofapproachtoincorporatetheeffectsofaxialloadsonthedynamicresponsesofsteelcolumnssubjectedtoblastloads
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