CE 538
Instructor:
Prof. Yan Xiao
Seismic Design and Analysis of RC Bridges
General
Information
This course will discuss the
fundamental concepts and modern methods used in seismic analysis and design of
reinforced concrete bridges. Current practice and design codes will be
critically examined. Challenges in the practice of assessment and retrofit
design of existing bridges will also be specifically addressed.
Special emphasis will be
given to discuss the performance of structures and structural elements based on
the state-of-the-art research results and actual earthquake observations.
Fundamentals related to computer modeling for bridge analysis will then be
specifically discussed. Several computer programs will be introduced and
evaluated. The emphasis will be on the simplification of bridge structure model
as well as the justification of computer output.
The participating students
will be divided into several project groups. Each group will be given a project
for analysis and design of an actual bridge throughout the semester. Both team
and individual efforts will be required to complete the project. A special
discussion session will also be provided to help students from different groups
learn from each other.
Unit: 3 units, graduate level.
Prerequisite: CE457,
Reinforced Concrete Design.
Text: Priestley,
Seible, and Calvi, “Seismic Design and Retrofit of Bridges”
published by Wiley, May
1996.
Handout materials of recent
technical papers.
References: i.
“Stantard Specifications for Seismic Design of Highway Bridges,” AASHTO,
Washington D.C., 1992.
ii.
“Bridge
Substructure and Foundation Design,” P.P. Xanthakos, published by Prentice Hall
PTR, 1995.
iii.
“AASHTO
LRFD Bridge Design Specifications,” First Edition, Washington, D.C.
iv.
“Bridge
Design Specification,” California Transportation Department (CALTRANS), 1992.
v. “Bridge Analysis by Microcomputer,”
Jaeger, et.al., McGrawHill, 1989.
Class: Wednesday, 6:30pm to 9:10pm. KAP159.
Grading: 2-3 Homework Assignments and
project term report 40%
Midterm
Exam 30%
Final Exam: final presentation and report of the project 30%
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Week |
Topics |
Project |
HW |
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1 |
Chapter-1 Introduction 1.1 Bridge Aesthetics 1.2 Brief Review of Prestressed Concrete 1.3 Bridge Type and
Construction |
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2 |
1.4 Bridge Performance in Past
Earthquakes 1.5 Scope of the Course |
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3 |
Chapter-2
General Design Considerations for Bridges 2.1 General Design Approaches 2.2 Loads on Bridges 2.3 Combinations of Loads |
Task-1: dead load and live load. |
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4 |
2.4 Non Seismic Analysis
and Design |
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5 |
Chapter-3
Seismic Design of Bridges 3.1 Earthquake Forces 3.2 Resisting Systems in
Bridge |
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6 |
3.3 Performance Criteria 3.4 Seismic Design Philosophy
and Approach |
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#1 |
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7 |
Presentation and Discussion of Task-1 |
Task-1 presentation and discussion |
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8 |
Chapter-4
Seismic Response and Analysis 4.1 Objectives 4.2 Fundamentals of RC
Modeling |
Tast-2: seismic force and analysis (computer work needed) |
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9 |
4.3 Modeling of Bridge
Components 4.4 Elastic Analysis 4.5 Pushover Analysis |
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10 |
4.6 Inelastic Time-History
Analysis |
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11 (Mid- Term Exam) |
Chapter-5
Principles of RC Bridge Design 5.1 Superstructure 5.2 Substructure Midterm Examination |
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12 |
5.2 Substructure 5.3 Other Bridge Elements |
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#2 |
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13 |
Chapter-6
Seismic Analysis and Retrofit 6.1 Potential Problem Areas
and Actual Damage 6.2 Assessment and Retrofit
Design Criteria 6.3 Superstructure Retrofit |
Task-3: design. |
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14 |
6.4 Substructure Retrofit
(column, footing, connections) 6.5 Other Techniques |
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15 |
Chapter-7
Practical Challenges 7.1 Design and testing of a
single column bridge bent design to current standards 7.2 Earthquake damage analysis
of a multi-column bent bridge 7.3 Analysis and retrofit of a
steel/concrete mixed long span toll bridge |
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