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Restoration of the bell pavilion of King Song-Dok Bell with a view of its acoustical characteristics

성덕대왕 신종의 음향적 특성을 고려한 종각복원의 고찰

  • Haan, Chan-Hoon (Department of Architectural Engineering, Chungbuk National University)
  • 한찬훈 (충북대학교 건축공학과)
  • Received : 2018.07.19
  • Accepted : 2018.09.20
  • Published : 2018.09.30

Abstract

The present paper suggests the original form of the bell pavilion for the King Song-Dok bell which is one of the precious national treasure of Korea. In order to this, many literatures were reviewed including both historical and acoustical references. As the results, the model of the bell pavilion for the King Song-Dok bell is suggested as follows considering acoustical characteristics of the King Song-Dok bell and the traditional Korean bells ; 1) The bell pavilion has the rumbling puddle beneath the bell on the ground floor for resonance of sound 2) Many lumbers are used for columns and beams rather than boards since natural frequencies of the bell are 64 Hz and 168 Hz so that the sound absorption of the low frequency sound may not be occurred. 3) Only some boards may be used for the area between upper and middle molding of lintel in order to prevent of direct sunlight and sea breeze since this type of structure were used for bell pavilion of the same age. 4) Square form with the odd number of 3 or 5 Kans is adopted for bell pavilion considering the weight and the size of the bell which had been used traditionally 5) Finally, half-hipped structure is used for the roof of the bell pavilion which was the predominant form of the age.

본 연구는 우리나라의 귀중한 문회유산인 성덕대왕 신종의 종각 복원을 위하여 신종에 대한 역사적 고찰과 문헌을 통한 자료조사와 더불어 음향적 특성에 대한 연구결과를 정리하였다. 전통적인 한국종과 신종의 음향적 특성을 고려할 때 성덕대왕 신종을 위한 종각의 모형은 다음과 같이 제안한다. 첫째, 종각은 종의 아래 움통구조를 가지고 있으며 둘째, 종의 고유진동수가 64 Hz대와 168 Hz에 분포되어 있음으로 인하여 저주파수대역의 흡음이 많은 판재보다는 기둥과 보와 같은 각재 및 선재로 종각의 구조가 이루어 졌을 것으로 판단된다. 셋째, 동시대의 종각구조를 감안할 때, 직달일광과 해풍의 영향을 줄이기 위하여 상방과 중방사이의 공간을 판재로 마감하는 형태도 제안되었으며 넷째, 종의 무게와 크기를 고려하여 전통적으로 종각에 일반적으로 많이 쓰이는 3칸이나 5칸의 홀수칸으로 된 정사각형 형태를 제안하였다. 마지막으로 다섯째, 지붕은 팔작지붕의 형태가 가장 원형에 근접하리라 판단된다.

Keywords

References

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