装配式建筑技术发展趋势研究

With the advance of new building industrialization, prefabricated buildings are gradually concerned and promoted. However, since China used to focus on traditional concrete pouring, and its development in the field of prefabricated buildings was relatively short and slow, it is urgent to have a clear understanding of the development of prefabricated buildings to assist decision-making and occupy the commanding heights of future prefabricated buildings and new building industrialization. This research attempts to analyze the development and changes of various types of technologies of prefabricated buildings in China in the past by using text mining technology to extract feature words and topic evolution analysis of patent abstracts through statistics of patent data related to prefabricated concrete structure construction technology in China. On this basis, we find out the current core technology and technical difficulties in China, and speculate on the future development direction and trend of prefabricated buildings in China. The main work and achievements of this paper are as follows: First, the life cycle of patented technology and the distribution map of IPC categories are obtained; The second is to extract the subject words of the patent abstract to find the technical research focus of prefabricated buildings in China; The third is to compare the technical similarity of the two research hot technologies, and find that the connection and installation integration of prefabricated components are technical difficulties in China.