|Table of Contents|

Fire Prevention Strategy of Wooden Arch Covered Bridge in Min-Zhe Area Based on Cultural Heritage Value(PDF)

《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

Issue:
2022年06期
Page:
163-174
Research Field:
防灾减灾工程
Publishing date:

Info

Title:
Fire Prevention Strategy of Wooden Arch Covered Bridge in Min-Zhe Area Based on Cultural Heritage Value
Author(s):
CHEN Shu-jie1;  LIU Yong-jian2;  AKIHARA Masato3;  MIAO Yuan1
(1. College of Architecture and Planning, Fujian University of Technology, Fuzhou 350108, Fujian, China; 2. School of Highway, Chang'an University, Xi'an 710064, Shaanxi, China; 3. School of Architecture and Planning, Fuzhou University, Fuzhou 350108, Fujian, China)
Keywords:
Min-Zhe wooden arch covered bridge;  cultural heritage;  authenticity;  fire;  fire origin;  fire retardant coating;  fire prevention zoning
PACS:
TU366.2
DOI:
10.19815/j.jace.2022.11019
Abstract:
To protect the important cultural heritage of the wooden arch covered bridge in Min-Zhe area, a fire prevention strategy based on cultural heritage value was proposed. The heritage value of the Min-Zhe wooden arch bridge was combed, the number and causes of related fire accidents were counted, and the fire causes, origins, spread paths, burning time and consequences of three Min-Zhe bridges happened in recent years were investigated in detail to understand the characteristics of fires in such kind of bridges. Based on this survey and the authenticity principle of heritage conservation, the existing fire prevention measures of the Min-Zhe bridge were analyzed. The results show that the multiple functions and spiritual space system carried by the wood arch structure and the covered house are the core of its heritage value and the two main parts of flammability in the fire. The main cause of the fire on the Min-Zhe bridge is accidental misfire, and the fire origin mainly comes from human activities on the bridge deck. The low fire resistance grade of the bridge structure, the three-dimensional combustion of covered house and woven arch structure, and the difficulty of extinguishing are the main reasons for the serious consequences of the fire damage. Among the existing strategies, except the ban of sacrificial incense has achieved good results, other measures such as smoking ban, fire control, fire monitoring, fire extinguishing are insufficient and ineffective. The improvement of smoking ban methods and manual monitoring of fire conditions, and the research and development of fire monitoring and extinguishing equipment should be carried out. Through coating the surface of some wood components and laying of refractory materials and other measures, the fire prevention zoning between the upper and lower bridges, among the multi-span bridge spans, and between the bridge and the surrounding forests or buildings was established, in order to improve the fire prevention and resistance of the bridge itself with minimal harm to the authenticity of cultural heritage.

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Last Update: 2022-12-20