In this course, students first learn about seismic damage, the impetus for seismic design, and gain an understanding of damage mechanisms. After understanding damage mechanisms, students will gain an understanding of the components of design input seismic motions, seismic calculation models, and reference methods, which are the basic elements of seismic designs, as well the essentials of practical design.
The next step is to get a picture of the differences between and respective advantages of specification design methods and performance design methods, which are the major design systems. Students will also learn that performance design methods are more rational.
The final step is to gain an understanding of nonlinearity and the fracture properties of structure-supporting foundations during an earthquake. Students will learn to understand that performance design requires advanced analysis that portrays these properties, and specific examples of analysis methods. Students will learn the ability to choose the optimal analysis method.
By the end of this course, each student will be able to:
1. describe the mechanisms of seismic damage.
2. choose from two levels of design input seismic motion that can be applied in practice.
3. Select analysis method that takes into consideration nonlinearity of foundations and concrete, and create nonlinear parameters for each.
4. Evaluate safety based on structure's sectional force and residual deformation obtained by seismic calculations.
earthquake disaster, design input ground motion, performance based design, nonlinear seismic response analysis, seismic resistance improving technology
✔ Specialist skills | Intercultural skills | Communication skills | Critical thinking skills | ✔ Practical and/or problem-solving skills |
In each lecture, specific examples of handling problems are shown, and the instructor explains in particular the parts which are not written in the design standards. By showing topics that an aspiring engineer should be able to handle, students are constantly reminded to perform safe and rational seismic design.
Course schedule | Required learning | |
---|---|---|
Class 1 | Basics of seismic design, earthquake damage, design input ground motion, specification design and performance design | |
Class 2 | Factors for seismic performance (resonance, damping, structural properties values, foundation properties values) Destruction of reinforced concrete and horizontal load bearing capacity during an earthquake | |
Class 3 | Seismic calculation method (seismic intensity method, response displacement method, dynamic analysis (time history response analysis) ) | |
Class 4 | How to proceed with time history response analysis | |
Class 5 | Seismic resistance improving technology (high rigidity, seismic isolation, damping technology) | |
Class 6 | Seismic performance of the ground: liquefaction and lateral flow | |
Class 7 | Seismic reinforcement of existing structures (the difference between the new, design concept, the selection of countermeasures) | |
Class 8 | Actual seismic design example | Exercise: Explain terminology of seismic design and indicate specific setup method |
All 85 pages of lecture notes will be handed out.
Japan Society of Civil Engineers: Seismic design introduction to help you practice (in Japanese), ISBN978-4-8106-0731-4
Exercise (30%), Report (70%).
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Matsuda Takashi matsuda.takasi[at]obayashi.co.jp 090-2562-1331
In the classroom after class.
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