1. Technical field and R & D background This project belongs to the field of civil and architectural science and technology. In the past ten years or so, domestic super high-rise buildings have developed rapidly, and their height and number have shown a trend of continuous breakthroughs. China has become the country with the largest number of super high-rise buildings in the world. Traditional codes, seismic analysis and design methods applicable to ordinary high-rise buildings cannot completely solve the new problems in current high-rise buildings. Based on the specific needs of actual projects, the project team has carried out continuous research for nearly 15 years focusing on core issues such as new seismic analysis methods, design methods, new structural systems, seismic members and joint structures, and achieved a series of breakthrough progress., and achieved engineering transformation, effectively improved the design level of super high-rise structures, and achieved significant economic and social benefits. 2. Main innovative contents 1. Breakthrough in five new technologies for nonlinear seismic analysis of super high-rise buildings: develop material constitutive procedures based on multiple nonlinearities, complete sets of dynamic elastoplastic analysis technologies for super high-rise buildings, and continuous collapse resistance simulation complete sets of technology, seismic performance evaluation system for super high-rise buildings, ldquo; pseudo-elastoplastic analysis technology, etc. Form an efficient and comprehensive application of a series of nonlinear analysis methods and technologies. 2. Created five new seismic design theories and technologies for complex super high-rise buildings: for the first time, the quantitative relationship theory between stiffness degradation and seismic response of super high-rise structures, the dynamic distribution mechanism and parameter control theory of earthquake internal forces of super high-rise structures, precise seismic design technology for complex frame-core tube structures, refined design technology for multi-tower connected structures, optimization technology based on complex super high-rise systems to meet seismic performance and economy, etc. It provides a new solution strategy to comprehensively understand the performance evolution mechanism of complex super high-rise buildings and achieve scientific and efficient structural design. 3. Proposed four complete design methods for new super high-rise structural systems: thin steel plate shear wall core tube system, combined core tube structure system, outrigger energy dissipation and vibration reduction system, frame-core tube composite structural system with steep diagonal braces (or diagonal columns), and steel plate wall damping frame-tube system. Achieve major breakthroughs in technological innovation in structural systems through engineering practice. 4. Developed three new types of seismic members: large-diameter concrete-filled steel tube columns, coupled steel plate composite shear walls, and multi-cavity steel plate giant SRC columns, all of which have completed engineering application transformation. Significantly improve the seismic performance of components and reduce construction difficulty. 5. Invented 6 new node connection methods mdash; mdash; new connection nodes, obtained invention patents and utility model patent authorizations respectively, and completed engineering applications. Achieving new requirements for joint mechanical performance of super high-rise buildings for earthquake resistance has formed many technical breakthroughs in the deepening design stage. 3. Intellectual property rights have been authorized for 4 invention patents, 6 utility model patents, 2 software copyright authorizations, 1 monograph, published more than 50 academic papers, and participated in the compilation of the National "Seismic Design Code of Buildings"(GB50011 -2010), Shanghai City's "Code for Seismic Design of Buildings"(DGJ08 -9-2013), and the National "Code for Design of Composite Structures"(JGJ138 - 2016) and other national and local and industry technical standards. 4. Application and promotion status The research results of the topic have completed large-scale and integrated engineering application transformation, forming core technologies that are competitive and leading in the industry. It has completed the design and consulting business of more than half of the country's major super high-rise projects. The total number of projects exceeds more than 100, the cumulative contract value exceeds 1 billion yuan, and the total economic scale of project services exceeds 100 billion yuan.