Experimental identification and analytical modelling of human walking forces: Literature review

Racić, Vitomir; Pavić, Aleksandar; Brownjohn, James

doi:10.1016/j.jsv.2009.04.020

Cited by 317 publications

(211 citation statements)

References 158 publications

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“…Folz and Foschi [15] idealised the occupants on the floor as lumped parameter models which are components of discrete masses, springs, and viscous dashpots with two and eleven degrees of freedom. Racic et al [29] reviewed 271 references which deal with various experimental and analytical characterisations of human walking forces and their application in vibration serviceability design of civil engineering structures when subjected to pedestrian movement such as footbridges, floors, and staircases. Mello et al [24] reported that experimental studies were performed by Alves (1997) and Faisca (2003) on two kinds of concrete platforms; rigid and flexible, when a group of volunteers acted on them.…”

Section: Human-induced Dynamic Loadsmentioning

confidence: 99%

Dynamic response of low frequency Profiled Steel Sheet Dry Board with Concrete infill (PSSDBC) floor system under human walking load

Gandomkar

Badaruzzaman

Osman

2012

Lat. Am. j. solids struct.

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This paper investigates the dynamic response of a composite structural system known as Profiled Steel Sheet Dry Board with Concrete infill (PSSDBC) to evaluate its vibration serviceability under human walking load. For this point, thirteen (13) PSSDBC panels in the category of Low Frequency Floor (LFF) were developed using Finite Element Method (FEM). The natural frequencies and mode shapes of the studied panels were determined based on the developed finite element models. For more realistic evaluation on dynamic response of the panels, dynamic load models representing human walking load were considered based on their Fundamental Natural Frequency (FNF), and also time and space descriptions. The peak accelerations of the panels were determined and compared to the limiting value proposed by the standard code ISO 2631-2. Effects of changing thickness of the Profiled Steel Sheet (PSS), Dry Board (DB), screw spacing, grade of concrete, damping ratio, type of support, and floor span on the dynamic responses of the PSSDBC panels were assessed. Results demonstrated that although some factors reduced dynamic response of the PSSDBC system under human walking load, low frequency PSSDBC floor system could reach high vibration levels resulting in lack of comfortableness for users. Keywords structural composite floor system, profiled steel sheet dry board, vibration serviceability, human walking load, dynamic response, human comfort.

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Section: Human-induced Dynamic Loadsmentioning

confidence: 99%

Dynamic response of low frequency Profiled Steel Sheet Dry Board with Concrete infill (PSSDBC) floor system under human walking load

Gandomkar

Badaruzzaman

Osman

2012

Lat. Am. j. solids struct.

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“…This paper describes a rapid development of pedestrian modelling strategies in the structural engineering context since the start of the new millennium, also illustrated in extensive literature reviews on the subject [4,6,[10][11][12][13]. From modelling a human dynamic force exclusively by means of the Fourier harmonic components, the modelling has since diversified to accommodate randomness in the dynamic force and include humanstructure integration to the point that some of these approaches are incorporated in the contemporary design practice.…”

Section: Conclusion and Recommendations For Further Workmentioning

confidence: 99%

“…Due to space limitations, the paper covers main ideas without attempting to list all references of interest. For more information, an interested reader is directed to a number of excellent review papers published over the last decade that address different aspects of this research theme [4,6,[10][11][12][13]. …”

Section: Introductionmentioning

confidence: 99%

Modelling human actions on lightweight structures: experimental and numerical developments

Živanović

2015

MATEC Web of Conferences

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Abstract. This paper presents recent, numerical and experimental, developments in modelling dynamic loading generated by humans. As modern structures with exposure to human-induced loading, such as footbridges, building floors and grandstands, are becoming ever lighter and more slender, they are increasingly susceptible to vibration under human-induced dynamic excitation, such as walking, jumping, running and bobbing, and their vibration serviceability assessment is often a deciding factor in the design process. While simplified modelling of the human using a harmonic force was sufficient for assessment of vibration performance of more robust structures a few decades ago, the higher fidelity models are required in the contemporary design. These models are expected not only to describe both temporal and spectral features of the force signal more accurately, but also to capture the influence, psychological and physiological, of human-structure and human-human interaction mechanisms on the human kinematics, and consequently on the force generated and the resulting vibration response. Significant advances have been made in both the research studies and design guidance. This paper reports the key developments and identifies the scope for further research.

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“…Among these vibration sources, those produced by human activities such as walking are the most common. Racic et al (2009) presented a comprehensive review of the literature on human walking forces. Fourier series have been used to simulate human-induced forces, with the walking-induced force only varying with time, and different harmonics of the Fourier series were used for different human activities (AISC, 1997).…”

Section: Introductionmentioning

confidence: 99%

Human-induced vibration of steel–concrete composite floors

Chen

Zhang

2018

Proceedings of the Institution of Civil Engineers - Structures

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Long-span composite floors have many desirable properties and have been increasingly employed in building construction. However, these long-span structures are prone to excessive and complex vibration under human rhythmic activities such as walking, running, jumping and aerobics, which may result in people's discomfort and complaints. A finite-element numerical study was conducted to investigate the vibration behaviour of profiled steel-deck composite floors under human walking and rhythmic activities. The results indicate that human-induced vibration of composite floors is influenced by several factors, namely the load model, the floor's natural frequency, effective weight and damping ratio. In a multi-unit floor system, higher modes may be excited and these vibration components should be considered. In addition, the vibration responses of both the active unit and adjacent passive units should be taken into consideration under human walking or rhythmic activities. In multi-floor buildings, the vibration of adjacent passive floors under rhythmic activities should be considered. The comfort index can be used to evaluate human perception to the vibration of composite floors. One important step in this procedure is to determine the peak accelerations of composite floors, which can be achieved based on the developed finite-element models.

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Experimental identification and analytical modelling of human walking forces: Literature review

Cited by 317 publications

References 158 publications

Dynamic response of low frequency Profiled Steel Sheet Dry Board with Concrete infill (PSSDBC) floor system under human walking load

Dynamic response of low frequency Profiled Steel Sheet Dry Board with Concrete infill (PSSDBC) floor system under human walking load

Modelling human actions on lightweight structures: experimental and numerical developments

Human-induced vibration of steel–concrete composite floors

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