京都大学 京都大学

Timber Science & Engineering II

Numbering Code G-AGR02 6BA38 LJ80 Year/Term 2022 ・ Intensive, First semester
Number of Credits 2 Course Type Lecture
Target Year Target Student
Language Japanese Day/Period Intensive
Instructor name ISODA HIROSHI (Research Institute for Sustainable Humanosphere Professor)
nakagawa takafumi (Research Institute for Sustainable Humanosphere Associate Professor)
Outline and Purpose of the Course This course provides discussions of various kinds of construction system of timber buildings, especially by paying attention to a structural function. The material to be covered includes:
traditional timber construction method, conventional construction method, wall frame construction system, log-house construction system, pre-fabrication construction system, construction method of Glulam buildings.
Course Goals Understand the following topics related to wooden structures:
Types of wooden structures and approaches to structural calculations
Relationship between damage and design levels related to safety and functionality
Durability design
Schedule and Contents Weeks 1 to 5: Japan’s modern construction methods and traditional wooden construction methods
The sessions will outline the characteristics of structures built using Japan’s modern construction methods and traditional wooden construction methods, and examine the mechanisms in which their rigidity and durability are manifested. Week 1: Overview; Week 2: Traditional architectures; Week 3: Conventional post and beam structures and wood-frame construction methods; Week 4: Glulam structures; Week 5: Others (Isoda)

Weeks 6 to 10: Safety and functionality of wooden structures as seen in past natural disasters
Damage to buildings caused by past natural disasters will be discussed, with a focus on wooden structures. Week 6: Earthquake damage 1; Week 7: Earthquake damage 2; Week 8: Typhoon damage; Week 9: Tsunami damage; Week 10: Changes to codes and regulations (Isoda)

Weeks 11 to 13: Architectural design methods Design methods for wooden residential structures will be outlined; Week 11: Wall quantity calculations; Week 12: Balanced layout; Week 13: Designing joints and others. (Isoda)

Weeks 14 and 15: Durability design for wooden structures (Mori)
Wall quantity calculations 1: Explanation of wall quantity calculations for traditional post and beam wooden housing structures based on the Enforcement Ordinances of the Building Standard Law. (Mori)
Evaluation Methods and Policy Evaluation will be based on reports.
Course Requirements None.
Study outside of Class (preparation and review) Review important concepts using reference materials including the following:
Guidebook to Technical Standards Related to Building Structures (2007 edition). Official Gazette Co-operation of Japan;
Architectural Institute of Japan. Design Standards for Wooden Structures and Explanations. Maruzen Co., Ltd.;
The Japan Building Disaster Prevention Association. Methods of Seismic Evaluation and Reinforcement of Wooden Housing. (Bibliography)
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