东南大学学报（自然科学版）2025，Vol.55Issue(1)：30-40,11.DOI:10.3969/j.issn.1001-0505.2025.01.004
延性抗震设计理念的发展及应用研究综述
A review of the development and application of the ductile seismic design concept
摘要
Abstract
Ductile seismic design aims to reduce structural seismic responses by allowing significant elastoplas-tic deformation of structures.This seismic design concept is widely adopted in the seismic codes of most coun-tries.The core idea is to employ a strength reduction factor to reduce the precautionary earthquake response spectrum and enable the structure to dissipate seismic energy through inelastic deformation.The strength reduc-tion factor is primarily determined by the ductility reduction factor and the structural overstrength factor.Mean-while,the capacity design method is a main tool for ductile seismic design,which requires non-ductile mem-bers to remain elastic both before and after ductile members subjected to nonlinear deformation,in order to achieve a ductile design of structure.Reviewing the research history of ductile seismic design,the effects of factors such as ductility factor,structural period,site conditions,and damping ratio on the ductility reduction factor are briefly introduced.The composition and calculation methods of the strength reduction factors are also elaborated.Finally,applications of the ductile design in the seismic codes of China,the United States,Europe and Japan are summarized.关键词
延性抗震设计/能力设计法/强度折减系数/延性折减系数/抗震设计规范Key words
ductile seismic design/capacity design method/strength reduction factor/ductility reduction factor/seismic design code分类
建筑与水利引用本文复制引用
贾良玖,罗旭亮,王立军,项平..延性抗震设计理念的发展及应用研究综述[J].东南大学学报（自然科学版）,2025,55(1):30-40,11.基金项目
国家自然科学基金面上资助项目(52178499,52278525,52478545). （52178499,52278525,52478545）
