Earthquake Resistant Structures
| Numbering Code | U-ENG24 34036 LJ74 | Year/Term | 2022 ・ Second semester | |
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| Number of Credits | 2 | Course Type | Lecture | |
| Target Year | Target Student | |||
| Language | Japanese | Day/Period | Wed.3 | |
| Instructor name |
HAYASHI YASUHIRO (Graduate School of Engineering Professor) ＳＵＧＩＮＯ ＭＩＮＡ (Graduate School of Engineering Associate Professor) |
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| Outline and Purpose of the Course |
Seismic design of structures requires an accurate understanding of the dynamic behavior of structures during earthquakes. After providing a historical outline of earthquake damage to architectural structures and the development of earthquake-resistant structures, This course will address the properties of seismic motion, and the basics of vibrational theory based on dynamic models of structures. We will also discuss structures’ earthquake response analysis methods, response characteristics, and basic concepts and procedures related to earthquake-proof design methods. |
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| Course Goals | Learn about basic theories of vibrational analysis of seismic motion in architectural structures, as well as foundational concepts of earthquake-proof design. In terms of the department’s learning/educational goals: B. Specialized knowledge and fundamental knowledge and B3. Ability to comprehend architectural structure. | |||
| Schedule and Contents |
History of earthquake-proof structures, 1 class: We will explain the characteristics of the seismic movement of past large-scale earthquakes, as well as the characteristics of earthquake damage to structures and ground, and discuss the history of earthquake-proof structures that have developed based on experiences with earthquake damage. Linear response in single degree of freedom systems, 6 classes: After explaining the meaning of modeling a building in a single degree of freedom system, we will discuss equations of motion in single degree of freedom systems and the vibration phenomena indicated by their general and special solutions. Based on single degree of freedom linear systems, theoretical solutions for free vibration and various types of interference (impulse excitation, step excitation, harmonic excitation, etc.) will be given, and we will discuss the ways in which a building’s natural period, damping ratio, and input seismic motion characteristics influence response. Non-linear response in single degree of freedom systems, 2 classes: We will discuss single degree of freedom system response with random interference. First, after demonstrating single degree of freedom system response with random interference, we will explain the influence of the non-linear single degree of freedom system vibrational analysis method and non-linearity upon response. Also, the concept of the response spectrum to random interference will be explained, and we will discuss its use in conducting earthquake resistance safety evaluations of buildings. Multiple degree of freedom system response, 2 classes: After explaining the composition methods of equations of motion in multiple degree of freedom systems, we will discuss eigenvalue analysis and modal analysis. Also, we will discuss the torsional vibration analysis and torsional response characteristics of buildings. Building response and earthquake-proof design, 3 classes: Mechanisms of the propagation of seismic motion from the epicenter to the ground of the building site will be explained, and the seismic motion amplification characteristics of the ground of the building site, as well as their influence on building response will be explained in terms of simple wave equations. Next, after describing the basic concept of earthquake-proof building design based on the dynamic analysis method, we will discuss basic methods of earthquake-proof building design and their historical development process. Finally, we will take up the topics of base isolation and vibration control as means of controlling building response and damage, discussing the basic theories and actual mechanisms underlying these, as well as design methods. Confirmation of learning attainment, 1 lecture: In addition to summarizing the classes, the degree of learning attainment will be confirmed. |
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| Evaluation Methods and Policy | Evaluation is performed by the final examination. | |||
| Course Requirements | None | |||
| Study outside of Class (preparation and review) | Review contents of previous classes and quizzes before taking every class. | |||
| Textbooks | Textbooks/References | Additional teaching materials: in-class printouts, PowerPoint documents, | ||
| Courses delivered by Instructors with Practical Work Experience |
分類： A course with practical content delivered by instructors with practical work experience Details of Instructors’ Practical Work Experience： None Details of Practical Classes Delivered： None |
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| Related URL | ||||
