Wuhan Greenland Center Project is the world's third-tallest building with 636 meters.The underground structure has been completed and the main building structure is under rapid construction.During the construction, BIM is playing a key role.This paper introduces the method of setting the jacking formwork system based on BIM technology, and solves problems of BIM application to vertical transportation, turnover materials management, pipeline optimization and steel structure erection.BIM technology makes the installation of the tower crane lifting formwork platform go on smoothly and guarrantees the construction progress on the ground core tube structure.

This paper analyzes the patent application status in the field of BIM, including the trend of patent application, the distribution of applicant types, the technical distribution and development of major applicants, by means of collecting, indexing and carding the patent documentsin the field of BIM. According to the technical branch of the BIM patent application that is summarized and analyzed, such as system integration, model optimization, construction management optimization, construction scheme optimization, system development and so on, the patent technology development of several representative applicantsis reviewed and analyzed.