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	プラスチックヒンジ解析	有限要素解析	プッシュオーバー解析
分野	土木工学	材料科学	土木工学
系統	Process / pipeline	Process / pipeline	Process / pipeline
提唱年	1914–1950s (Kazinczy 1914; Baker et al. 1956)	1943	1996
提唱者	Multiple contributors (Kazinczy, Kist, Baker, Horne, Neal)	Richard Courant	Peter Fajfar
種類	Structural analysis method	Computational method	Nonlinear static method for earthquake engineering
原典	Chen, W. F., & Sohal, A. S. (1995). Plastic Design and Second-Order Analysis of Steel Frames. Springer. ISBN: 978-0387944319	Zienkiewicz, O. C., & Taylor, R. L. (1977). The Finite Element Method in Engineering Science. McGraw-Hill.	Ahi, N., Desroches, R., & Jain, A. (1996). Lateral load distribution for equivalent static analysis of buildings. Engineering Journal, 33(2), 45-54.
別名	plastic hinge method, plastic collapse analysis, limit state plastic analysis, yield hinge analysis	FEA, finite element method	Static pushover, Nonlinear static analysis
関連	3	4	4
概要	Plastic hinge analysis is a structural engineering method that determines the load-carrying capacity of a structure by tracking the sequential formation of plastic hinges — localised zones where a cross-section has fully yielded — until a kinematic collapse mechanism is formed. Rooted in plastic theory, it provides a more economical and realistic estimate of ultimate structural capacity than purely elastic approaches, and is widely used in the design and assessment of steel frames, reinforced concrete beams, and other ductile structural systems.	Finite Element Analysis (FEA) is a numerical technique for obtaining approximate solutions to boundary value problems described by differential equations. Developed systematically by Richard Courant in 1943 and popularized by Clough in the 1960s, FEA divides a complex domain into smaller, simpler elements to solve engineering problems involving stress, strain, heat transfer, and fluid flow. It is the dominant computational method in materials science for predicting material behavior under various loading conditions.	Pushover analysis is a nonlinear static method for assessing seismic structural performance. Introduced by Fajfar in 1996 as part of the N2 method, it progressively increases lateral loads on a structure until it reaches a target displacement, revealing how structures deform and yield under seismic events.