Author(s)

Li Haiao

Corresponding Author

Li Haiao

ABSTRACT

The theory of seismic design based on ultimate bond state is a new theory of seismic design which has emerged in recent years. It has aroused strong repercussions in the field of engineering structures and aroused strong interest of structural engineers and scholars. Based on the analysis of the stress of special-shaped joints in reinforced concrete frames, the concept of "small core" determined by trabecular columns is proposed. It is concluded that the bearing capacity of special-shaped joints in frames depends on the "small core" of special-shaped joints. For different performance requirements and analysis methods, appropriate material constitutive model, section partition method and simulation unit are selected to make the analysis results close to the actual engineering situation. During the earthquake process, the structural energy response balance, the structural hysteretic energy and damping energy consumption increase with time, and tend to be stable in the later stage of seismic action. The structural kinetic energy and elastic variable performance are zero at the end of the earthquake. During the design process, engineers can select different side-shift modes to design the structure according to the specific design requirements of the project.

KEYWORDS

Mixed clay, Interfacial cohesion, Seismic performance