Formulation of human–structure interaction for vibration serviceability of steel–concrete composite floors

Cao, Liang; Chen, Y. Frank

doi:10.1002/stc.2679

Cited by 6 publications

(3 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In performing the theoretical analysis on the dynamic response due to walking excitations, the factors of human weight and the duration of single-step excitation were considered, which were also considered to develop the walk forcing function. As a result, the following Fourier series [42] defning the single-step walk forcing function F(t) was derived, as shown in Figure 15(a). For the single-step walking considered in the previous study, the frst six terms (n � 1-6) of the series were developed based on the experimental observations.…”

Section: Discussion Of Peak Coefcientmentioning

confidence: 99%

Vibration Analysis of Low Height-to-Span Ratio Pedestrian Bridge under Human-Induced Excitation

Wang

An²,

Huang

et al. 2023

Advances in Civil Engineering

View full text Add to dashboard Cite

Driven by the aesthetic pursuit of the urban landscape, pedestrian bridges become longer, lighter, and slender, which may be susceptible to unacceptable vibrations induced by human activities. This paper presented on-site vibration tests of a pedestrian bridge with a very low height-to-span ratio (1/60). The vibration characteristics and dynamic responses were analyzed using environmental, heel-drop, and walking tests. Then, a verified finite model was established to investigate the effect of the height-to-span ratio and the concrete filling ranges of tree-like steel piers on the vibration characteristics and acceleration responses of this kind of pedestrian bridges. Moreover, the relationship between different peak accelerations under heel-drop and walking at various frequencies by the same person was detailed and studied experimentally and by computer simulation, after which the ratios of the peak acceleration during walking and the one under heel-drop were recommended. Finally, a method that demonstrates the feasibility of predicting the peak acceleration of pedestrian bridges of a small height-to-span ratio across a range of walking frequencies was proposed based on a simplified heel-drop load model developed according to 60 time-history records.

show abstract

Section: Discussion Of Peak Coefcientmentioning

confidence: 99%

Vibration Analysis of Low Height-to-Span Ratio Pedestrian Bridge under Human-Induced Excitation

Wang

An²,

Huang

et al. 2023

Advances in Civil Engineering

View full text Add to dashboard Cite

show abstract

“…The attenuation of vertical weighted vibration acceleration level (ΔVL Z ) at each floor was calculated by equation (4). A previous study showed that the vibration attenuation per story decreased with the rise of story.…”

Section: Discussionmentioning

confidence: 99%

“…The energy of floor vibration caused by these impact forces mainly distributes below 15 Hz. 3,4 In the measurement of vibration and structure-borne sound transmission, a standard tapping machine is used to simulate light-weight impact sources such as footsteps with shoes. 5 The tapping machine drops five equally spaced force hammers of 0.5 kg from a height of 40 mm.…”

Section: Introductionmentioning

confidence: 99%

The transmission characteristics and influence prediction of impulsive vibration caused by a solid metal ball impact in buildings

Guo

Lin

2022

Journal of Low Frequency Noise, Vibration and Active Control

View full text Add to dashboard Cite

The impulsive vibration induced by human running and jumping, object falling, striking during decoration, etc., significantly disturbs the learning, work, and life of people through building structure transmission. To study the influence of impulsive vibration in buildings, a vacant frame building was selected as a tested building. The vibration at each floor besides hitting spot would be measured when a solid metal ball falling freely hit the first floor of this building. The vibration response at each floor caused by the excitation above was simulated through a finite element method. The parameters of the simulation model were optimized according to measured results. Furthermore, the influence of building structure, the total amount of stories, and slab dimension on the transmission of vibration from 1 Hz to 80 Hz which can be perceived by human bodies was quantitatively studied. Results showed that the vertical weighted vibration acceleration level at each floor linearly decreased with the increase of the logarithm of the distance between each floor and the hitting spot. A prediction model of vertical weighted vibration acceleration level from 1 Hz to 80 Hz induced by the impulsive vibration in buildings was developed according to simulation results. The corrections relating to the number of story, building structure, slab span, slab length-to-width ratio, and slab thickness were respectively introduced in the model which can predict the vertical weighted vibration acceleration level at each floor above the hitting spot. The results of this study can provide a basis for the prediction and control of impulsive vibration caused by an impact source with great stiffness in buildings.

show abstract

Measurement and application of walking models for evaluating floor vibration

Cao

Chen

et al. 2023

Structures

View full text Add to dashboard Cite

Formulation of human–structure interaction for vibration serviceability of steel–concrete composite floors

Cited by 6 publications

References 27 publications

Vibration Analysis of Low Height-to-Span Ratio Pedestrian Bridge under Human-Induced Excitation

Vibration Analysis of Low Height-to-Span Ratio Pedestrian Bridge under Human-Induced Excitation

The transmission characteristics and influence prediction of impulsive vibration caused by a solid metal ball impact in buildings

Measurement and application of walking models for evaluating floor vibration

Contact Info

Product

Resources

About