The purpose of this paper is to classify housing type and calculate the maximum surface wind speed for the assessment of wind damage potential by the typhoon wind loading on structure of housing in Korea. For this, we applied wind field module of Public Hurricane Risk and Loss Model (PHRLM) to calculate the maximum surface wind speed and classified housing by roof type, the quality of interior and exterior material of a building in Korea.

In case of wind speed, we estimated wind speed at 300m level using 700hPa wind according to the research method by Franklin(2003), PHRLM(2003), and Vickery and Skerlj(2005). Then we calculated wind speed at 10m level using the estimated wind speed at 300m level, and finally, peak 3-second gust on surface. The case period is from 18LST August 31 to 03LST September 1, 2002, when the typhoon Rusa in 2002 was the most intense. Among disaster prediction models in the US, Wind Field Module of PHRLM in Florida was used for the 2002 typhoon Rusa case. As a result, peak 3-second gust on the surface increased 10~20% in the typhoon's 700hPa wind speed.

The number of flat roof and hip roof type housing is high in Korea, The ratio of width and length of a single housing is about 1.5 and the height of a floor and ceiling are 2.6`3.0 m and 2.3`2.6 m, respectively.

Acknowledgments

This work was funded by the Korea Meteorological Administration Research and Development Program under Grant CATER 2006-3303.