Linear Buckling Analysis 163 Nonlinear Analysis 168 Overview of Nonlinear Analysis 168 ii Response Spectrum Analysis 155 Time History Analysis 159 Modal Superposition Method 159
MIDAS/Civil Analysis Options 124 Analysis Options 124 Linear Static Analysis 125 Free Vibration Analysis 126 Eigenvalue Analysis 126 Ritz Vector Analysis 132Ĭonsideration of Damping 137 Modal Damping Based on Strain Energy 147 Set-up and Calculation of Modal Damping Based on Strain Energy 149 Modal Damping 151 Rayleigh Damping by Elements 152 Formulation of Damping Matrix 153 Consideration of Linear Damping in General Link Element 154 Shear Factor for Shear Stress (Qyb, Qzb) 83 Stiffness of Composite Sections 84īoundary Conditions 85 Boundary Conditions 85 Constraint for Degree of Freedom 86 Elastic Boundary Elements (Spring Supports) 89 Elastic Link Element 93 General Link Element 94 Element End Release 97 Considering Panel Zone Effects 99 Master and Slave Nodes (Rigid Link Function) 111 Specified Displacements of Supports 120Ģ. Important Aspects of Element Selection 53 Truss, Tension-only and Compression-only Elements 55 Beam Element 57 Plane Stress Element 60 Plane Strain Element 62 Axisymmetric Element 62 Plate Element 63 Solid Element 64Įlement Stiffness Data 65 Area (Cross-Sectional Area) 67 Effective Shear Areas (Asy, Asz) 68 Torsional Resistance (Ixx) 70 Area Moment of Inertia (Iyy, Izz) 77 Area Product Moment of Inertia (I yz) 79 First Moment of Area (Qy, Qz) 82 i Numerical Analysis Model of MIDAS/Civil 1 Numerical Analysis Model 1 Coordinate Systems and Nodes 2 Types of Elements and Important Considerations 4 Truss Element 4 Tension-only Element 9 Cable Element 10 Compression-only Element 14 Beam Element 16 Plane Stress Element 19 Two-Dimensional Plane Strain Element 25 Two-Dimensional Axisymmetric Element 32 Plate Element 39 Solid Element 46
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