13
June 2019

Modeling of Bridges for Linear and Non-Linear Seismic Analyses

Status: The event is open
Date: Thursday, June 13, 2019 - Friday, June 14, 2019
Time: 8:00 AM-8:30 AM: Registration - Day 1 
8:30 AM-4:30 PM: Day 1 & 2
Location: Vancouver, BC
Presenter: Mohammed Naimi, P.Eng., M.Sc., Ph.D.
Transport, Infrastructure and Buildings, SNC-Lavalin
Credit: 14 Formal Professional Development Hours (PDH)
Cost: Early Bird Price Engineers and Geoscientists BC Member:  $899.00 + GST = $943.95 until May 30, 2019

Engineers and Geoscientists BC Member and EIT/GIT Regular Price: $999.00 + GST = $1048.95

Non-Member Price: $999.00 + GST = $1048.95

Student Member Price: $450.00 + GST = $472.50
Please Note: *A minimum number of registrations are needed by May 30, 2019 to proceed with this seminar. Please register early to avoid cancellation.
**All prices are subject to applicable taxes.
Contact: Jennifer Chan | Professional Development Coordinator
Direct: 604.412.4861
Toll Free: 1.888.430.8035 ext.4861
Fax: 604.639.8180
Email: [email protected]
The main purpose of seismic analysis is to give engineers the necessary tools to estimate forces that can be applied to bridges and to understand how they respond to earthquake ground motion. This course provides the concepts of modelling of bridges for linear and non-linear seismic analyses and emphasizes on the important factors that control their seismic response such as effective weight, stiffness, damping, etc. The application of modelling for seismic analysis of bridge structures is illustrated through practical examples of bridges with different geometry and configuration.

Course Outline

  • Brief introduction to seismology
  • Introduction to structural dynamics and earthquake engineering:
    • Response of Single-Degree-of-Freedom Systems and Multi-Degree-of-Freedom Systems
    • Concept of response spectrum
    • Concept of ductilit
  • Introduction to time history analysis (linear and non linear)
  • Introduction to Code provisions
  • Brief introduction to seismic soil-structure interaction:
    • Soil parameters
    • Issues of soil liquefaction
    • Site effects

Course Objectives

  • Master the basic concepts for modelling bridges for seismic analysis.
  • Use of different models for seismic response analysis.
  • Identify how inertia seismic forces are transmitted to foundations.
  • Identify the main factors that affect the dynamic response of bridge structures.
  • Define regular and irregular bridge structures according to code provisions, and
  • Understand the impact of soil parameters on the response of bridges.

Course Content

Day 1

INTRODUCTION TO SEISMOLOGY

  • Types of seismic waves, faults, and fault rupture mechanisms
  • Seismic records and seismic hazard

INTRODUCTION TO STRUCTURAL DYNAMICS AND EARTHQUAKE ENGINEERING

  • Definitions: mass, weight, stiffness, damping, resisting system, inertia force, seismic acceleration
  • Introduction to single degree of freedom systems:
    • Application to bridge structures:
      • Mathematical model: differential equation of motion
      • Simplified models and simplified expressions for estimating the fundamental period
  • Input ground motions for analysis: acceleration time histories

CONCEPTS OF MODELLING OF SHORT AND MEDIUM SPAN BRIDGES FOR SEISMIC ANALYSIS

  • Methods of obtaining the response of bridges modelled as One-Degree-of-Freedom Systems and Multi-Degree-of-Freedom Systems: mode superposition, response spectrum, linear and non linear time history analysis (step by step integration algorithms)
  • Introduction to simplified models (2D and 3D)
  • Modelling of bridge structures using finite elements
  • Modelling of bridges for non linear time history analyses
  • Introduction to code

Day Two

  • Numerical examples: examples for modelling bridge structures with different geometry and configurations

EXAMPLES OF BRIDGE STRUCTURES DAMAGED BY EARTHQUAKE

  • Examples from bibliography

INTRODUCTION TO SEISMIC SOIL-STRUCTURE INTERACTION

  • Brief introduction to seismic soil-structure interaction:
    • Soil parameters that influence the seismic behaviour
    • Issues of soil liquefaction on bridge foundations:
      • Effects of soil liquefaction
      • Effects of lateral spreading
  • Example of deep bridge foundation
  • Site effects:
    • Example of site effects
    • Phenomenon of seismic amplification

Target Audience

Civil, structural and earthquake engineers, geotechnical engineers, professionals involved in design of structures, researchers. All participants need to have basic knowledge in structural analysis, mathematics for engineers, and fundamental physics.

SPEAKER

Mohammed Naimi, P.Eng., M.Sc., Ph.D.

Transport, Infrastructure and Buildings, SNC-Lavalin

Dr. Naimi is a professional engineer with expertise in earthquake engineering, structural dynamics and soil-structure interaction. He holds a bachelor's degree, a master's of science and a Ph.D. He taught and applied structural dynamics, earthquake engineering courses for 37 years. During his academic career, Dr. Naimi has contributed to the publication of scientific papers in earthquake engineering and has participated in the design of bridges, buildings dams and tunnels. In addition, he has trained many professional engineers in Canada and abroad. Currently, Dr. Naimi is an expert at Cima+ in Montreal and instructor for professional engineering courses at PTExpert.



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