Vibration in residential buildings is a significant problem to be addressed. Vehicle traffic is one such source of vibration, and it may indicate significant concerns for the nearby residential buildings. The assessment of vibration severity in this case study is based on residents’ reports of increased vibration during nighttime and early morning vehicular movement, particularly heavy trucks. Since it is a corner plot, the residential structure is parallel to the roads in both directions. The soil investigation report shows that the top soil deposit comprises medium-dense silty sand. The isolated footings were laid and rested 1.7 m below the existing ground level. Low-frequency range measuring geophones were used to record the vibration of the building/floor at three designated locations (the terrace, the second floor, and the ground floor). Human exposure factor and low-frequency vibration measurements were recorded for roughly three minutes at specific locations within the building. Higher vibration levels were detected during the measurement, and most measured values were above the permissible levels per the standard code. As a result, it was advised that additional research and mitigation can be done, considering the structure, soil condition, dynamic load, and foundation type. Vehicle traffic and the soil profile were the primary sources of vibration, so it is imperative to strengthen and provide vibration-absorbing elements inside and outside the building. The silty sand layer can be strengthened using cement-fly ash grout, and rubber tyre chip columns can reduce vibration. The techniques must be implemented, and the vibration measurement should be done to prove its efficiency.

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Vibration Mitigation for a Residential Building—A Case Study

  • K. Premalatha,
  • Priyadharshini Maniam Rajan,
  • R. Akshaya,
  • R. Arivazhagan

摘要

Vibration in residential buildings is a significant problem to be addressed. Vehicle traffic is one such source of vibration, and it may indicate significant concerns for the nearby residential buildings. The assessment of vibration severity in this case study is based on residents’ reports of increased vibration during nighttime and early morning vehicular movement, particularly heavy trucks. Since it is a corner plot, the residential structure is parallel to the roads in both directions. The soil investigation report shows that the top soil deposit comprises medium-dense silty sand. The isolated footings were laid and rested 1.7 m below the existing ground level. Low-frequency range measuring geophones were used to record the vibration of the building/floor at three designated locations (the terrace, the second floor, and the ground floor). Human exposure factor and low-frequency vibration measurements were recorded for roughly three minutes at specific locations within the building. Higher vibration levels were detected during the measurement, and most measured values were above the permissible levels per the standard code. As a result, it was advised that additional research and mitigation can be done, considering the structure, soil condition, dynamic load, and foundation type. Vehicle traffic and the soil profile were the primary sources of vibration, so it is imperative to strengthen and provide vibration-absorbing elements inside and outside the building. The silty sand layer can be strengthened using cement-fly ash grout, and rubber tyre chip columns can reduce vibration. The techniques must be implemented, and the vibration measurement should be done to prove its efficiency.