The Study Of Large Building Fire Sprinkler Seismic Construction

Earthquakes hit China frequently in recent years. As a result of earthquakes, serious fire disasters often happen due to the rupture of gas pipeline or electricity conduit in buildings. Besides, the rescuing departments doesn’t have any more time and energy to put out fires after heavy earthquakes. If the fire control devices in buildings work normally, both the working load of the rescuing departments and the damage of the building could be largely reduced. On the other hand, if the fire control devices also damage in the earthquakes, it could cause secondary disasters such as water leakage and waterlogging. Therefore, it is crucial to improve the shock-proof ability of fire protection system in important buildings and make it maintain its fire control functions despite of shock damage.We could see from the experience of earthquakes in other countries that whether the automatic sprinkling fire extinguishing system function properly after earthquakes is crucial for important buildings to avoid or reduce fire damage. After the violent Wenchuan earthquake in2008, China has increased the shock-proof level of buildings to a remarkable extent and put more emphasis on the shock-proof ability of their interior devices. However, because the shock-proof ability of fire protection system has always been overlooked in our country, the relevant shock-proof regulations are imperfect. Under such a background, this thesis tend to make a basic analysis of the shock-proof ability of sprinkling fire extinguishing system and give some suggestions for reference.Based on the features of mega-structures, the thesis reviews the investigation files of several great earthquakes in America and Japan in recent years. Through the analysis of earthquake damage experience in foreign countries, we find that the fixing and joint spots of the components are the main weak points of the automatic sprinkling fire extinguishing system. If we adopt fixing measures that are firmer, and take some remedial measures to the displacement of the joint spots, we can improve the comprehensive shock-proof ability of the system.