Development of Dynamic Load Factors for Human Walking Excitation for Floor Vibration Design
This paper discusses the derivation of a set of dynamic load factors for calculation of walking response on the basis of measurements made during a biomechanics research carried out with young adults. Firstly, a quite large number of experimental data on single footstep force were collected. The sin...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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University of Zielona Góra
2022-08-01
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| Series: | International Journal of Applied Mechanics and Engineering |
| Subjects: | |
| Online Access: | https://www.ijame-poland.com/Development-of-Dynamic-Load-Factors-for-Human-Walking-Excitation-for-Floor-Vibration,166697,0,2.html |
| _version_ | 1797750394096451584 |
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| author | Huu Anh Tuan Nguyen Noel Lythgo Emad Gad John Wilson Nicholas Haritos |
| author_facet | Huu Anh Tuan Nguyen Noel Lythgo Emad Gad John Wilson Nicholas Haritos |
| author_sort | Huu Anh Tuan Nguyen |
| collection | DOAJ |
| description | This paper discusses the derivation of a set of dynamic load factors for calculation of walking response on the basis of measurements made during a biomechanics research carried out with young adults. Firstly, a quite large number of experimental data on single footstep force were collected. The single footstep forces were then superimposed to generate the force time history for a continuous walk. This was followed by the transformation of the resultant force to the frequency domain from which the dynamic load factors for the first ten harmonics of a pacing rate can be extracted. A statistical analysis was employed on the dynamic load factors to acquire their design values in terms of the 90-th or 95-th percentile. The waking force function recommended by various design guides and that developed in the paper were then used in a comprehensive finite element model to predict the vibration level of a building floor. Current design guides on floor vibration normally suggest using four harmonics in the walking force whereas load factors for ten harmonics were developed in this paper. The acceleration response of the floor was found to increase by 5-33 % when walking harmonics beyond the fourth harmonic were considered. The inclusion of higher harmonics would therefore lead to a more conservative estimation of the floor response. |
| first_indexed | 2024-03-12T16:33:08Z |
| format | Article |
| id | doaj.art-17df040632e841dbbd21080c0281f312 |
| institution | Directory Open Access Journal |
| issn | 1734-4492 2353-9003 |
| language | English |
| last_indexed | 2024-03-12T16:33:08Z |
| publishDate | 2022-08-01 |
| publisher | University of Zielona Góra |
| record_format | Article |
| series | International Journal of Applied Mechanics and Engineering |
| spelling | doaj.art-17df040632e841dbbd21080c0281f3122023-08-08T15:04:55ZengUniversity of Zielona GóraInternational Journal of Applied Mechanics and Engineering1734-44922353-90032022-08-0127310311410.2478/ijame-2022-0038166697Development of Dynamic Load Factors for Human Walking Excitation for Floor Vibration DesignHuu Anh Tuan Nguyen0Noel Lythgo1Emad Gad2John Wilson3Nicholas Haritos4Faculty of Civil Engineering, University of Architecture Ho Chi Minh City, HCMC, VietnamSTEM College, RMIT University, Bundoora, VIC, AustraliaSchool of Engineering, Swinburne University of Technology, Hawthorn, VIC, AustraliaSchool of Engineering, Swinburne University of Technology, Hawthorn, VIC, AustraliaSchool of Engineering, Swinburne University of Technology, Hawthorn, VIC, AustraliaThis paper discusses the derivation of a set of dynamic load factors for calculation of walking response on the basis of measurements made during a biomechanics research carried out with young adults. Firstly, a quite large number of experimental data on single footstep force were collected. The single footstep forces were then superimposed to generate the force time history for a continuous walk. This was followed by the transformation of the resultant force to the frequency domain from which the dynamic load factors for the first ten harmonics of a pacing rate can be extracted. A statistical analysis was employed on the dynamic load factors to acquire their design values in terms of the 90-th or 95-th percentile. The waking force function recommended by various design guides and that developed in the paper were then used in a comprehensive finite element model to predict the vibration level of a building floor. Current design guides on floor vibration normally suggest using four harmonics in the walking force whereas load factors for ten harmonics were developed in this paper. The acceleration response of the floor was found to increase by 5-33 % when walking harmonics beyond the fourth harmonic were considered. The inclusion of higher harmonics would therefore lead to a more conservative estimation of the floor response.https://www.ijame-poland.com/Development-of-Dynamic-Load-Factors-for-Human-Walking-Excitation-for-Floor-Vibration,166697,0,2.htmlwalking excitationstep frequencydynamic load factorfloor vibrationdesign guide |
| spellingShingle | Huu Anh Tuan Nguyen Noel Lythgo Emad Gad John Wilson Nicholas Haritos Development of Dynamic Load Factors for Human Walking Excitation for Floor Vibration Design International Journal of Applied Mechanics and Engineering walking excitation step frequency dynamic load factor floor vibration design guide |
| title | Development of Dynamic Load Factors for Human Walking Excitation for Floor Vibration Design |
| title_full | Development of Dynamic Load Factors for Human Walking Excitation for Floor Vibration Design |
| title_fullStr | Development of Dynamic Load Factors for Human Walking Excitation for Floor Vibration Design |
| title_full_unstemmed | Development of Dynamic Load Factors for Human Walking Excitation for Floor Vibration Design |
| title_short | Development of Dynamic Load Factors for Human Walking Excitation for Floor Vibration Design |
| title_sort | development of dynamic load factors for human walking excitation for floor vibration design |
| topic | walking excitation step frequency dynamic load factor floor vibration design guide |
| url | https://www.ijame-poland.com/Development-of-Dynamic-Load-Factors-for-Human-Walking-Excitation-for-Floor-Vibration,166697,0,2.html |
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