Precise integration of bridge structure collision models under seismic effect

Numerical analysis of collision is an important aspect of bridge seismic research. This paper introduces precise integration to the numerical analysis of seismic collision. Firstly, the collision forces of four contact element models were expressed in a unified form, including linear spring model, K...

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Autores principales:	Junhong Yin, Menghao Wang, Ruijie Zhang, Zhengfang Dong
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2022
Materias:	Bridge Seismic collision Precise integration method Contact elements Collision force Engineering (General). Civil engineering (General) TA1-2040
Acceso en línea:	https://doaj.org/article/1b3d1f9afce9473bafb1921e89291719
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id	oai:doaj.org-article:1b3d1f9afce9473bafb1921e89291719
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spelling	oai:doaj.org-article:1b3d1f9afce9473bafb1921e892917192021-11-30T04:13:54ZPrecise integration of bridge structure collision models under seismic effect1110-016810.1016/j.aej.2021.07.036https://doaj.org/article/1b3d1f9afce9473bafb1921e892917192022-03-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1110016821005056https://doaj.org/toc/1110-0168Numerical analysis of collision is an important aspect of bridge seismic research. This paper introduces precise integration to the numerical analysis of seismic collision. Firstly, the collision forces of four contact element models were expressed in a unified form, including linear spring model, Kelvin-Voigt model, Hertz model, and Jan-Hertz-Damp model, and then the precision integration formula was derived for solving the collision force. Next, a collision time search method was proposed under the linear acceleration hypothesis, and the seismic collision was divided into a collision phase and a non-collision phase. Different time steps were adopted for the two phases. This strategy was verified by comparing simulation results with the data of theoretical analysis and shaking table test. The results show that precision integration ensures the accuracy of numerical calculation for bridge structure collision under seismic action, and achieves a high calculation efficiency; the contact element model and model parameters should be selected reasonably to analyze seismic collision of bridges; the Jan-Hertz-Damp model of contact elements boasts the highest simulation accuracy among the commonly used models.Junhong YinMenghao WangRuijie ZhangZhengfang DongElsevierarticleBridgeSeismic collisionPrecise integration methodContact elementsCollision forceEngineering (General). Civil engineering (General)TA1-2040ENAlexandria Engineering Journal, Vol 61, Iss 3, Pp 2146-2154 (2022)
institution	DOAJ
collection	DOAJ
language	EN
topic	Bridge Seismic collision Precise integration method Contact elements Collision force Engineering (General). Civil engineering (General) TA1-2040
spellingShingle	Bridge Seismic collision Precise integration method Contact elements Collision force Engineering (General). Civil engineering (General) TA1-2040 Junhong Yin Menghao Wang Ruijie Zhang Zhengfang Dong Precise integration of bridge structure collision models under seismic effect
description	Numerical analysis of collision is an important aspect of bridge seismic research. This paper introduces precise integration to the numerical analysis of seismic collision. Firstly, the collision forces of four contact element models were expressed in a unified form, including linear spring model, Kelvin-Voigt model, Hertz model, and Jan-Hertz-Damp model, and then the precision integration formula was derived for solving the collision force. Next, a collision time search method was proposed under the linear acceleration hypothesis, and the seismic collision was divided into a collision phase and a non-collision phase. Different time steps were adopted for the two phases. This strategy was verified by comparing simulation results with the data of theoretical analysis and shaking table test. The results show that precision integration ensures the accuracy of numerical calculation for bridge structure collision under seismic action, and achieves a high calculation efficiency; the contact element model and model parameters should be selected reasonably to analyze seismic collision of bridges; the Jan-Hertz-Damp model of contact elements boasts the highest simulation accuracy among the commonly used models.
format	article
author	Junhong Yin Menghao Wang Ruijie Zhang Zhengfang Dong
author_facet	Junhong Yin Menghao Wang Ruijie Zhang Zhengfang Dong
author_sort	Junhong Yin
title	Precise integration of bridge structure collision models under seismic effect
title_short	Precise integration of bridge structure collision models under seismic effect
title_full	Precise integration of bridge structure collision models under seismic effect
title_fullStr	Precise integration of bridge structure collision models under seismic effect
title_full_unstemmed	Precise integration of bridge structure collision models under seismic effect
title_sort	precise integration of bridge structure collision models under seismic effect
publisher	Elsevier
publishDate	2022
url	https://doaj.org/article/1b3d1f9afce9473bafb1921e89291719
work_keys_str_mv	AT junhongyin preciseintegrationofbridgestructurecollisionmodelsunderseismiceffect AT menghaowang preciseintegrationofbridgestructurecollisionmodelsunderseismiceffect AT ruijiezhang preciseintegrationofbridgestructurecollisionmodelsunderseismiceffect AT zhengfangdong preciseintegrationofbridgestructurecollisionmodelsunderseismiceffect
_version_	1718406789154734080

Precise integration of bridge structure collision models under seismic effect

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