| Title |
The Analysis of Characteristics of Floor Impact Noise depending on Structural Types of Multi-family Residential Buildings |
| Authors |
김태민(Kim, Tae-Min) ; 박시현(Park, Si-Hyun) ; 김민준(Kim, Min-Jun) ; 곽병창(Kwag, Byung-Chang) |
| DOI |
https://doi.org/10.5659/JAIK.2023.39.9.185 |
| Keywords |
Multi-family Residential Buildings; Floor Impact Noise; Structure Type; Structural Vibration; Effective Plate |
| Abstract |
In South Korea, floor impact noise in multi-family residential buildings has become a growing concern. Specifically, there is interest in
reducing floor impact noise in apartment buildings with a column-beam structure. This research conducted full-scale experiments to examine
how floor impact noise is generated in different types of structures and utilized computational analysis to understand the vibration behavior
known as ODS of the floor slab during floor impact noise occurrences. The results of the full-scale experiments revealed that the
column-beam type apartment units had higher levels of floor impact noise compared to wall-type units. Additionally, through modal testing, it
was observed that the column-beam type exhibited a low-frequency mode with significant vibration response within the floor impact noise
measurement range. Furthermore, a vibration mode stemming from the internal structure of the beam was present within this measurement
range as well. Based on these research findings, it is possible to reduce floor impact noise generation by optimizing beam design. The
effective performance of the floor is influenced by the position and characteristics of the beams in column-beam structured buildings. |