| 요약2 |
Wind have a variety of causes that can threaten men and buildings. Whenever a typhoon passes through, the exterior materials and roof of factories, and signboards are torn away. Besides, the large window glasses of tall apartments can break out and telephone poles fell down. The workers in high-rise office buildings have to evacuate to lower levels out of fear and surprises. Those kinds of disturbances are frequently repeated. What matters is that no proper measures have been taken to keep building and humans safe although such phenomenon has been happening for a long time, not only recently. To this respect, the following key issues such as the intensity of typhoon, building risk assessment, and wind load design standards are very important from the perspective of the safety of building and human life. Global warming will push typhoon-affecting areas up to north. As temperature rises, typhoon will appear at close areas to Taiwan and the sea coast of the southern Japan. It means typhoon could blow in around our country, so the damage of typhoon in South Korea could be greater. It will be largely attributed to the temperature rise of the surface of the sea and the weakened prevaling westerlies that comes from the middle latitude. When the temperature gap between latitudes decreases the force of the prevaling westerlies in the middle latitude will also decrease. That weakening means that the dissipating process of typhoon would be weakened too. That is to say, typhoon will be more likely to stay longer on our land, having a greater impact. Almost all of the countries in the world take the climate change seriously and are working hard on a plan to reduce natural disasters caused by this climate change. However, it is true that our nation has a lack of fundamental researches and related policies for the reduction of natural disaster produced by the climate change. Therefore, we need academic circles to develop a variety of researches to have equivalent technologies to those of other developed countries. In addition, it is thought that a plan or measure to reduce natural disaster to come, which is suitable for Korea, should be prepared on the basis of various researches of industry-academic cooperation. The Wind Engineering Institute of Korea (WEIK) established the Wind Load Standards Committee in WEIK in November of 2010, with the effort to prepare wind load plan for KBC 2013. The committee refrained itself from overall revision. Instead, it took a direction to supplement the existing standards and explanations. It focused on civil complaints, requests by persons in charge, and unreasonable clauses that need revision or abolishing of KBC 2009 to bring up domestic standards that differ from other countries. The revision work was executed with the principle that only verified facts in Korea can be added to the revision. We cannot let only Nature to be responsible of natural disaster for breaking down large window glasses of tall apartments, pulled-out exterior materials and roofs of buildings and turn-out signboards. They are man-made disasters. The negligence of the development of technological and institutional system is our responsibility. Those serious matters, such as the prediction of typhoon variation, risk assessment of facilities, arrangement of load standards and so on are not the only task of a few experts. But related government ministries should take an active and progressive action to reduce the damage for the nation and to improve the national safety. |