Dynamic Response Analysis of a Multiple Square Loops-String Dome under Seismic Excitation

The interaction between multiple loops and string cables complicates the dynamic response of triple square loops-string dome structures under seismic excitation. The internal connection between the multiple square loops-string cables and the grid beams was studies to provide a favorable reference fo...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Zhenwei Lin, Chao Zhang, Jucan Dong, Jianliang Ou, Li Yu
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	multiple square loops (MSL)-string seismic excitation dynamic response seismic pulse near and far field Mathematics QA1-939
Acceso en línea:	https://doaj.org/article/8ead5318921f46d8ad20813390749311
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:8ead5318921f46d8ad20813390749311
record_format	dspace
spelling	oai:doaj.org-article:8ead5318921f46d8ad208133907493112021-11-25T19:06:25ZDynamic Response Analysis of a Multiple Square Loops-String Dome under Seismic Excitation10.3390/sym131120622073-8994https://doaj.org/article/8ead5318921f46d8ad208133907493112021-11-01T00:00:00Zhttps://www.mdpi.com/2073-8994/13/11/2062https://doaj.org/toc/2073-8994The interaction between multiple loops and string cables complicates the dynamic response of triple square loops-string dome structures under seismic excitation. The internal connection between the multiple square loops-string cables and the grid beams was studies to provide a favorable reference for an anti-seismic structure. With a finite element model of the Fuzhou Strait Olympic Sports Center Gymnasium, established by SAP2000 software, the structural dynamic characteristic parameters were obtained first, and then this study adopted a time-history analysis method to study the internal force response of the cables and the roof grid beams of the multiple square loops-string dome (MSLSD) under three types of seismic array excitation. The influence of two factors, namely the seismic pulse and the near and far seismic fields, on the dynamic response of this structure was analyzed by three groups of different types of seismic excitation (PNF, NNF, PFF). As shown from the results, the first three-order vibration modes were torsional deformations caused by cables, the last five were mainly the overall roof plane vibration and antisymmetric vibration. Under the excitation of the three seismic arrays, the internal force responses of stay cables, square cables in the outer ring and the string cables were largest, while the maximum internal force response of the struts changed with the direction of seismic excitation. The largest internal force response of the roof grid beams occurred in local components such as BX3, BX7 and BY7, and the largest deformation of the beam nodes occurred in JX7, JX12 and JY4. In general, the seismic pulse and the near seismic field weakened the internal force response of the struts and cables but increased the internal force response and deformation of the dome beams, while the near and far seismic fields outweighed the seismic pulse. All the above provides an important reference for structural monitoring and seismic resistance.Zhenwei LinChao ZhangJucan DongJianliang OuLi YuMDPI AGarticlemultiple square loops (MSL)-stringseismic excitationdynamic responseseismic pulsenear and far fieldMathematicsQA1-939ENSymmetry, Vol 13, Iss 2062, p 2062 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	multiple square loops (MSL)-string seismic excitation dynamic response seismic pulse near and far field Mathematics QA1-939
spellingShingle	multiple square loops (MSL)-string seismic excitation dynamic response seismic pulse near and far field Mathematics QA1-939 Zhenwei Lin Chao Zhang Jucan Dong Jianliang Ou Li Yu Dynamic Response Analysis of a Multiple Square Loops-String Dome under Seismic Excitation
description	The interaction between multiple loops and string cables complicates the dynamic response of triple square loops-string dome structures under seismic excitation. The internal connection between the multiple square loops-string cables and the grid beams was studies to provide a favorable reference for an anti-seismic structure. With a finite element model of the Fuzhou Strait Olympic Sports Center Gymnasium, established by SAP2000 software, the structural dynamic characteristic parameters were obtained first, and then this study adopted a time-history analysis method to study the internal force response of the cables and the roof grid beams of the multiple square loops-string dome (MSLSD) under three types of seismic array excitation. The influence of two factors, namely the seismic pulse and the near and far seismic fields, on the dynamic response of this structure was analyzed by three groups of different types of seismic excitation (PNF, NNF, PFF). As shown from the results, the first three-order vibration modes were torsional deformations caused by cables, the last five were mainly the overall roof plane vibration and antisymmetric vibration. Under the excitation of the three seismic arrays, the internal force responses of stay cables, square cables in the outer ring and the string cables were largest, while the maximum internal force response of the struts changed with the direction of seismic excitation. The largest internal force response of the roof grid beams occurred in local components such as BX3, BX7 and BY7, and the largest deformation of the beam nodes occurred in JX7, JX12 and JY4. In general, the seismic pulse and the near seismic field weakened the internal force response of the struts and cables but increased the internal force response and deformation of the dome beams, while the near and far seismic fields outweighed the seismic pulse. All the above provides an important reference for structural monitoring and seismic resistance.
format	article
author	Zhenwei Lin Chao Zhang Jucan Dong Jianliang Ou Li Yu
author_facet	Zhenwei Lin Chao Zhang Jucan Dong Jianliang Ou Li Yu
author_sort	Zhenwei Lin
title	Dynamic Response Analysis of a Multiple Square Loops-String Dome under Seismic Excitation
title_short	Dynamic Response Analysis of a Multiple Square Loops-String Dome under Seismic Excitation
title_full	Dynamic Response Analysis of a Multiple Square Loops-String Dome under Seismic Excitation
title_fullStr	Dynamic Response Analysis of a Multiple Square Loops-String Dome under Seismic Excitation
title_full_unstemmed	Dynamic Response Analysis of a Multiple Square Loops-String Dome under Seismic Excitation
title_sort	dynamic response analysis of a multiple square loops-string dome under seismic excitation
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/8ead5318921f46d8ad20813390749311
work_keys_str_mv	AT zhenweilin dynamicresponseanalysisofamultiplesquareloopsstringdomeunderseismicexcitation AT chaozhang dynamicresponseanalysisofamultiplesquareloopsstringdomeunderseismicexcitation AT jucandong dynamicresponseanalysisofamultiplesquareloopsstringdomeunderseismicexcitation AT jianliangou dynamicresponseanalysisofamultiplesquareloopsstringdomeunderseismicexcitation AT liyu dynamicresponseanalysisofamultiplesquareloopsstringdomeunderseismicexcitation
_version_	1718410289544691712

Dynamic Response Analysis of a Multiple Square Loops-String Dome under Seismic Excitation

Ejemplares similares