Vibration Analysis of Beam and Block Precast Slab System due to Human Vibrations

Chik, Tuan Norhayati Tuan; Kamil, M R H; Yusoff, Nor Azizi

doi:10.1088/1742-6596/995/1/012115

Cited by 2 publications

(1 citation statement)

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“…To boost the damping of such a large‐span system, they suggested using tuned mass dampers (TMDs). Chik et al 12 conducted parameter research to assess the effects of concrete slab thickness, span, elastic modulus, and other parameters on the floor fundamental frequency. They used a laser Doppler vibrometer to measure the effects of jumping and walking on the vibration performance of the beam block precast slab system.…”

Section: Introductionmentioning

confidence: 99%

Experimental study on fundamental frequency and human‐induced vibration characteristics of light steel foam concrete composite floor

Xu,

Meng

et al. 2024

Structural Design Tall Build

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SummaryIn order to study the dynamic characteristics and human‐induced vibration response of light steel foamed concrete composite floor (LCSF), the vibration characteristics of 4.2 m × 5 m LCSF model were tested under the condition of opposite side support, and the natural vibration frequency of LCSF was obtained. The orthogonal anisotropic elastic plate and the simulated beam element were used, respectively, to compute the natural vibration frequency of the LCSF, and the estimated findings were compared with those obtained from measurements. The discrepancy between the calculated results and the measured results of the approximate beam element using the natural vibration frequency calculation technique is around 13%, but the error for the plate element using the calculated results and the tested results is about 23%. To examine the floor's vibration response under the factors of step frequency, walking path, pedestrian density, and load distribution, the LCSF underwent a human‐induced vibration test. The test results show that the fundamental frequency of the LCSF specimen is about 11 Hz, which can meet the requirements of the specification. However, the vibration response of the LCSF specimen under different conditions of pedestrian load is significantly different. With the acceleration of step frequency and the increase and concentration of load, the floor's vibration response becomes more visible. In the route test, it is established that LCSF has the attribute of a unidirectional plate. The natural vibration frequency of similar floor slab can be calculated by the method of simulating the natural vibration frequency of beam element. The findings can serve as a guide for LCSF research and implementation.

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Section: Introductionmentioning

confidence: 99%