A brief discussion on importance of seismic concept design of structures based on general rules of Eurocode 8

Due to the complexity uncertainty of the load bearing of structure elements under the seismic action,various differences exist between the assumptions of seismic design and actual conditions,sometimes even unable to compute.To ensure the seismic reliability of structures,the key point is to perform the seismic concept design.The seismic concept design of structures is the basic principle and design idea in accordance with the professional knowledge of engineers acquired from the seismic structural damage and engineering practice experience.In this paper,the basic principle and general guiding rules on seismic concept design of Eurocode 8 are briefly introduced,and the purpose of seismic concept design and the importance of its application to engineering practice are discussed.Finally,it is indicated that a series of comprehensive and systematic theories on seismic concept design of structures does not exist in China presently.To carefully perform the seismic design of structures and ensure their safety and durability,the research on seismic concept design of structures will be more and more important.