Research On Energy-saving Retrofit Technical Strategy Of Building Envelope Of Heritage Architecture In Twentieth Century

In recent years, the 20 th century heritage building is getting known to more and more people. The protection and reuse of 20 th century heritage building get more and more attention of the public. However, research on energy-saving building envelope which is not rich, most of the energy-saving research for ordinary buildings. Energy-saving research for 20-century heritage building has not been sufficient attention. This is not only due to the people’s awareness of protection that tend to stay in the "static protection", but also due to the ignorance of internal environmental of heritage building. However main thing is because people can not fully understand the relevant protection provisions and principles, that they believe protection and retrofit are difficult to be satisfied at same time. Therefore, there is not so much relevant discussion and exploration.In this paper, the subject of study is the envelope of 20 th century heritage building. The discussion and research is about its energy-saving retrofit technical strategy. The article includes the following:The first part is introduction. Relevant concepts, purpose, meaning, content and methods are introduced.The second part is the 20 th century heritage building envelope energy saving overview. Introduction of the 20 th century heritage building, through field research and research data, to understand heritage building energy savings, maintenance and performance characteristics of the type of structure. According to the relevant principles, discuss the "extent of retrofit" grading standard, clear the evaluation methods.The third part is the 20 th century heritage building envelope energy-saving process optimization. First, analyze the differences and common heritage building built on energy-saving process. The second step of combining the protection of heritage buildings, to explore and optimize the analysis of its energy saving retrofit process.The fourth part is the 20 th century heritage building envelope energy-saving technical analysis. Make assessment of the technology used in energy saving. Analyze which is applicable to the "extent of retrofit" grading standard of heritage building, and make a comparative analysis to the energy efficiency of different technologies.The fifth part is the 20 th century heritage building envelope energy-saving technical strategy optimization. Based on the previous analysis, get the optimization of selection method of the energy-saving technology, as well as the selection steps. And then, give the technical strategy recommendation based on the different retrofit situation, which can be used to guide engineering practice.The sixth part is conclusion of the thesis, which presents the major results of the research.