EQE 686 – Deformation-based Seismic Assessment and Design

Deterministic and probabilistic approaches in seismic assessment and design

• Aleatory and epistemic uncertainties in seismic assessment and design
• Performance-based assessment and design by fully probabilistic approach
• Performance-based seismic assessment and design by deterministic approach under probabilistically estimated seismic ground motion

Analysis and design approaches contained in 2018 Turkish Building Seismic Code (TBSC)

• Strength-Based Seismic Design (SBD) Approach versus Deformation-Based Seismic Assessment and Design (DBAD) Approach

Nonlinear Equations of Motion

• Elements of nonlinear equations of motion

Material nonlinearity

• Plastic Hinge model – Stress Resultant Plasticity Theory: Plastic Flow Rule and Normality Condition
• Elastoplastic Stiffness Matrix and Plastic Reduction Matrix

Geometric nonlinearity

• Second-order Effects versus Large Displacement Effects
• Rigorous Second-Order Stiffness Matrix
• Approximate Second-Order Stiffness Matrix: Consistent Geometric Stiffness Matrix
• Simplified Geometric Stiffness Matrix: P-Δ effects

Structural Modeling Requirements for Practical Nonlinear Analysis

• Lumped plasticity versus distributed plasticity approaches
• Plastic Hinge Model
• Fiber Model

Nonlinear Analysis Procedures

• Response-history analysis (RHA) of SDOF systems in time domain – Piecewise Linear Exact Method
• Response-history analysis (RHA) of MDOF systems in time domain – Direct integration methods
• Pushover analysis – Single-mode and multi-mode pushover analysis methods
• Incremental Response-Spectrum Analysis (IRSA) Method for multi-mode adaptive pushover analysis

Assessment of Deformations and Internal Forces

• Deformation acceptance criteria for ductile demand quantities
• Strength acceptance criteria for brittle demand quantities

REFERENCE TEXTBOOKS : 

To be given in the course

(Course notes will be provided.)