8
March 2018

Modelling of Bridges for Linear and Non-Linear Seismic Analyses

Status: Advanced registration is now closed. Please contact Tonya Hyde for registration options.
Date: Thursday, March 8, 2018 - Friday, March 9, 2018
Time: 8:00 AM–8:30 AM: Registration and breakfast
8:30 AM–4:30 PM: Modelling of Bridges for Linear and Non-Linear Seismic Analyses
Location: Blue Horizon Hotel - Seymour Room - 31st Floor 1225 Robson Street Vancouver, BC V6E 1C3
Presenter: Mohammed Naimi, P.Eng., M.Sc., PhD
P.Eng. Expert in Earthquake Engineering, SNC-Lavalin
Credit: 14 Formal Professional Development Hours (PDH)
Cost: Early Bird Price Engineers and Geoscientists BC Member: $850.00 + GST = $892.50 until February 22, 2018

Engineers and Geoscientists BC Member and EIT/GIT Regular Price: $950.00 + GST = $997.50

Non-Member Price: $950.00 + GST = $997.50

Engineers and Geoscientists BC Student Member Price: $425.00 + GST = $446.25
Please Note: *A minimum number of registrations are needed by February 22, 2018 to proceed with this seminar. Please register early to avoid cancellation.
**All prices are subject to applicable taxes.
Contact: Tonya Hyde | Professional Development Coordinator
Direct: 604.558.6655
Toll Free: 1.888.430.8035 ext.6655
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.
 

Topics That Will be Covered

  • 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

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.

Content

Day One

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

Clients Targeted

Civil, structural and earthquake engineers, geotechnical engineers, professionals involved in design of structures, researchers.

Prerequisites

All participants need to have basic knowledge in structural analysis, mathematics for engineers, and fundamental physics.

Speaker

Mohammed Naimi, P.Eng., M.Sc., PhD

P.Eng. Expert in Earthquake Engineering, SNC-Lavalin

Mohammed Naimi has 36 years of experience in highway engineering, infrastructure construction, and urban, civil, and industrial buildings. His experience is in major infrastructure projects relevant to highway and railway causeway, bridges, viaducts, cable stayed and suspension bridges, flyover and tunnels, and civil and industrial buildings. During his career, he developed international skills in earthquake engineering where he published scientific and research papers. His expertise focuses on earthquake engineering and seismic soil-structure interaction as well as the application of the finite element method. He holds a B.Sc., M.Sc. and PhD in structural engineering. He actively participated in the training of engineers in Canada and abroad. Currently, he is a project manager responsible to manage and to overview major projects in short and medium span bridges as well as long span cable stayed and suspension bridges for seismic analysis and design including seismic retrofit and repair of bridges, buildings, and tunnels.



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