Study On The Design New Tendency Of Architectural Roof Of Sponge City Theory

After entering the new century,the global climate has deteriorated continuously,the heavy rainfall events have been continuously increasing.Various flood and waterlogging have caused serious losses of life and property around China,which has become an important natural disaster factor treating urban safety.The study found that the main reasons causing the increasingly frequent flood and waterlogging are the increasing rainfall,urban construction,unscientific urban layout,increasing road construction and the damaged urban ecological environment.Meanwhile,China's fresh water source is lack,and residents awareness of water conservation is poor.Statistics show that China has 6% of the world's freshwater resources,but per capita possession is only 1/4 higher than the world average.Besides,2/3 of the cities in China are lacking of water,among which 18.3% are seriously lacking of water.In the future,as the government continually accelerates the urbanization,the roads and buildings will further increase,and the proportion of urban impervious areas will continue to increase,resulting in rainfall is hart to penetrate and converge timely.Now the people's whole awareness of water conservation is poor,resulting in a lot of water which can be reused don't be used efficiently.After proposing and practicing the sponge city,a new direction for the development of the city is shown clearly,which can not only relief the risk of flood and waterlogging but also use the rain and flood at a greater degree,which is an effective way to solve the problem of waterlogging disaster in the city.Therefore,in the research of this subject,the author sorted out the existing research results and practical experiences,explored the development direction of architectural green roof design under the current context,put forward the new idea of the green roof design for rainwater and flood drainage building guided by sponge city theory.Taking this building design new concept as the guide,this paper carried out an empirical research on the green roof design of rainwater and flood drainage building in Jiangxi Province,which has great practical significance for improving thedesign of rainwater and flood drainage building design in Jiangxi Province guided by sponge city and provides suggestions and reference for the central region's architectural design programs.The proposal and development of sponge city found a new idea for the domestic architectural design,so it is necessary to study and practice it,to provide guidance for the rainwater and flood drainage building design,to provide a strong theoretical support for our country builds the new livable cities.