Reanalysis of Structures

Contents 1 Static Analysis 1.1 Linear Analysis of Framed Structures 1.2 Linear Analysis of Continuum Structures 1.3 Solution of the Linear Equilibrium Equations 1.3.1 Matrix Factorization 1.3.2 Iterative Solution Procedures 1.4 Nonlinear Analysis 1.4.1 Geometric Nonlinearity 1.4.2 Material Nonlinearity 1.4.3 Time Varying Loads 1.4.4 Buckling Analysis 1.4.5 Solution of the Nonlinear Equations References 2 Vibration Analysis 2.1 Free Vibration 2.1.1 Properties of the Eigenproblem 2.1.2 The Standard Eigenproblem and the Rayleigh Quotient 2.2 Solution of the Eigenproblem 2.2.1 Static Condensation 2.2.2 Solution Methods 2.3 Vector Iteration Methods 2.3.1 Inverse Vector Iteration 2.3.2 Vector Iteration with Shifts 2.3.3 Matrix Deflation and Gram-Schmidt Orthogonalization 2.4 Transformation Methods 2.5 Polynomial Iterations 2.6 Rayleigh-Ritz Analysis 2.6.1 Approximate Eigenproblem Solution 2.6.2 Load-Dependent Ritz Vectors 2.7 The Lanczos Method 2.8 Subspace Iteration References 3 Dynamic Analysis 3.1 Linear Dynamic Analysis 3.1.1 Direct Integration 3.1.2 Mode Superposition 3.1.3 Special Analysis Procedures 3.2 Reduced Basis 3.2.1 Static Analysis 3.2.2 Dynamic Analysis 3.3 Nonlinear Dynamic Analysis 3.3.1 Implicit Integration 3.3.2 Mode Superposition References 4 Reanalysis of Structures 4.1 Design Variables 4.2 Formulation of Static Reanalysis 4.2.1 Linear Static Reanalysis 4.2.2 Nonlinear Static Reanalysis 4.3 Formulation of Vibration Reanalysis 4.3.1 Eigenproblem Reanalysis 4.3.2 Iterative Procedures 4.4 Formulation of Dynamic Reanalysis 4.4.1 Linear Dynamic Reanalysis 4.4.2 Nonlinear Dynamic Reanalysis 4.5 Reanalysis Methods 4.5.1 Direct Methods 4.5.2 Approximate Methods 4.5.3 The Combined Approximations Approach References 5 Static Reanalysis 5.1 Determination of the Basis Vectors 5.1.1 The Binomial Series 5.1.2 Calculation of the Basis Vectors 5.1.3 Convergence of the Series 5.2 Linear Reanalysis 5.2.1 Coupled Basis Vectors 5.2.2 Uncoupled Basis Vectors 5.3

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