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A Study on the Plastic deformation Absorption Characteristics of Aluminum-Polyethylene Composite Structure Sprinkler Pipe

알루미늄 합성수지 복합 구조 스프링클러 파이프의 변위 흡수 특성 연구

Kim, Jun-Gon;Kim, Kwang-Beom;Noh, Sung-Yeo
김준곤;김광범;노성여

  • Received : 2018.11.29
  • Accepted : 2019.01.04
  • Published : 2019.01.31

Abstract

After an earthquake, fire and gas explosions are more likely to cause more casualties in cities with many apartment buildings and large complex buildings. In order to prevent this, seismic design is necessary for the fire protection sprinkler system. However, most systems currently use stainless-steel pipes, although synthetic resin pipes are used in some special places. These materials are susceptible to vibration and earthquakes. This study evaluated the displacement absorption flexibility of polyethylene (PE) and aluminum (Al) multi-layered composite pipes to increase the seismic performance in a vibration environment and during earthquakes. The seismic performance was compared with that of a stainless-steel and PE pipes. The seismic characteristics can be measured by measuring the amount and extent of vibration transmitted by the sprinkler pipe. This method can be used to judge the seismic characteristics to attenuate the vibration during an earthquake. The seismic characteristics of the pipe were verified by comparing the logarithmic attenuation rate to the initial response displacement of the vibration generated by the transverse vibration measurement method.

Keywords

Deformation absorption;Fittings;Piping;Seismic Design;Sprinkler

References

  1. Jong-Bu Kim, "A Base Study & Appliance Design of Against Damage to Earthquakes For Sprinkler System" University of seoul, pp 2-6, 2011.
  2. Man-Sung Hur, "A Study on Seismic Design in the Piping of Water-Based Fire Protection System" Korean Institute Of Fire Science & Engineering, 11, pp. 89-90, 2011.
  3. Hye-Young Lee, "A Study on the Amelioration Plan of Earthquake Resistant Design of Sprinkler System Piping" Kyonggi University, pp. 13-17, 2016.
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Acknowledgement

Supported by : 산업기술평가관리원(KEIT)