Assessing Structural Damage after a Severe Wildfire: A Case Study
Abstract
:1. Introduction
- Opening security roads in the forest area, creating fire breaks, and limiting available fuel with prescribed burns and vegetation thinning;
- Monitoring and detecting the ignition of a fire in its early stages based on human surveillance and/or advanced detection and monitoring techniques, including satellite remote sensing, forest animals as biological sensors, image processing, etc. [1];
- Educating people in the community to avoid the initiation of fires when high winds are expected, especially in areas with combustible vegetation;
- Acquiring (by the government, local or national) all necessary equipment and personnel for fire suppression and having a plan of action to reduce fire spread and to direct people who are being evacuated from areas of danger.
2. Fires and Structures
3. Construction Materials Exposed to Fire
3.1. Behavior of Concrete in Fires
3.2. Behavior of Masonry in Fires
3.3. Behavior of Timber in Fires
3.4. Behavior of Steel in Fires
4. Case Study
4.1. Details of the Occurrence of the Wildfire
4.2. Observed Damage
4.2.1. Observed Damage of Reinforced Concrete Buildings
4.2.2. Observed Damage of Masonry Buildings
4.2.3. Observed Damage of Timber Structures
4.2.4. Observed Damage of Buildings with Steel Frames
5. Numerical Analysis
5.1. Numerical Model
5.2. Numerical Analysis Results and Discussion
6. Conclusions
- When the walls were exposed to extreme heat conditions and damage was observed, the highest thermal conductivity value recommended by Eurocode better represented the temperatures developed;
- The edges of the nonexposed faces of the wall panels were least affected by the extreme heat conditions;
- When wall openings were included in the analysis, they had to be considered together with their window frame in order to properly identify the temperatures that developed;
- The thickness of the wall panel played an important role in temperature distribution. The larger the thickness was, the lower the temperatures were that developed across the wall panel;
- The location of the window frame played an important role in thick masonry. When it was closely, the exposed face had a small effect on the temperatures that developed across the window and on the nonexposed face. The opposite occurred when the window frame was closer to the nonexposed face and the fire reached it. In the last case, the area around the window was affected the most.
Author Contributions
Funding
Conflicts of Interest
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Papalou, A.; Baros, D.K. Assessing Structural Damage after a Severe Wildfire: A Case Study. Buildings 2019, 9, 171. https://doi.org/10.3390/buildings9070171
Papalou A, Baros DK. Assessing Structural Damage after a Severe Wildfire: A Case Study. Buildings. 2019; 9(7):171. https://doi.org/10.3390/buildings9070171
Chicago/Turabian StylePapalou, Angeliki, and Dimitrios K. Baros. 2019. "Assessing Structural Damage after a Severe Wildfire: A Case Study" Buildings 9, no. 7: 171. https://doi.org/10.3390/buildings9070171
APA StylePapalou, A., & Baros, D. K. (2019). Assessing Structural Damage after a Severe Wildfire: A Case Study. Buildings, 9(7), 171. https://doi.org/10.3390/buildings9070171