2023 Structural Design I

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Academic unit or major
Undergraduate major in Architecture and Building Engineering
Takeuchi Toru  Ikarashi Kikuo  Terazawa Yuki  Mitsui Kazuya 
Class Format
Lecture / Exercise    (Face-to-face)
Media-enhanced courses
Day/Period(Room No.)
Mon2-4(MI1-107(M114))  Thr2-4(MI1-107(M114))  
Course number
Academic year
Offered quarter
Syllabus updated
Lecture notes updated
Language used
Access Index

Course description and aims

Learning the basic mechanical characteristics and composition of design formulas of steel structure elements by lectures, and master their basic philosophies by working on exercises. In each unit, the lectures take place in the first half 90 minutes, and the exercises on the same topic as lectures take place in the second half 45 minutes.
Basically lectures are provided on blackboard and distributed appropriate prints. Separately, the structural design challenges of low-rise steel buildings is given which is discussed in the last lecture.
Learning the basic structural design concept and correctly understand the basic mechanical properties of the structural members in the background of design formulas.

Student learning outcomes

I. Learning the basic philosophies of steel structures by lectures, and master the knowledge on the mechanical characteristics and design method through exercises.
II. History of steel structures, Material and allowable stress, Design loads, Process of structural design, Buckling, Connections, Member design, Plastic design.


Steel structure, Structural design, Buckling, Connections, Allowable stress design, Plastic design

Competencies that will be developed

Specialist skills Intercultural skills Communication skills Critical thinking skills Practical and/or problem-solving skills

Class flow

The lectures take place in the first half 90 minutes, and the exercises on the same topic as lectures take place in the second half 45 minutes. Basically lectures are provided on blackboard and distributed appropriate prints.

Course schedule/Required learning

  Course schedule Required learning
Class 1 Mechanical properties and allowable stress of materials Understand basic characteristics of steel material, allowable stress and sections of steel members.
Class 2 Design loads Learn and exercise on building design loads. / The challenges of low-rise steel buildings is distributed.
Class 3 Tension members, Euler buckling Learn on tension members and understand Euler buckling.
Class 4 Compression members Understand the evaluation of elasto-plastic buckling strength and allowable compression stress.
Class 5 Latticed compression members Understand buckling theory including shear deformation and design method of latticed compression members.
Class 6 Theory of lateral torsional buckling and allowable stress for bending members Understand lateral buckling theory for beams and allowable bending stress.
Class 7 Design of columns under compression and bending Understand buckling check method of columns under compression and bending.
Class 8 Width-thickness ratios and local buckling Understand the characteristics of local buckling and requirements for wwdth-thickness ratios.
Class 9 Friction bolted connections Learn the idea of friction bolted connection and their design method.
Class 10 Welded connections Learn the types of welding and understand the design method of welded connection.
Class 11 Connection design Learn the member connection design including bolts and welding.
Class 12 Column base Understand the composition and design method of steel column base design.
Class 13 Plastic design 1: Members Understand the ultimate bending capacity of members under compression and M-N interaction.
Class 14 plastic design 2: frames Understand the theorem of upper and lower bound. Learn the evaluation method of ultimate strength of moment frames

Out-of-Class Study Time (Preparation and Review)

To enhance effective learning, students are encouraged to spend a certain length of time outside of class on preparation and review (including for assignments), as specified by the Tokyo Institute of Technology Rules on Undergraduate Learning (東京工業大学学修規程) and the Tokyo Institute of Technology Rules on Graduate Learning (東京工業大学大学院学修規程), for each class.
They should do so by referring to textbooks and other course material.


Morihisa Fujioto: Design of Steel Structures, Gihodo-press

Reference books, course materials, etc.

Minoru Wakabayashi: Detailed Theory of Steel Structures
Timoshenko & Gere: Theory of Elastic Stability, McGraw-Hill

Assessment criteria and methods

Score is given based on examination and exercises

Related courses

  • ARC.S201 : Fundamentals of Mechanics of Materials A
  • ARC.S202 : Fundamentals of Mechanics of Materials B
  • ARC.S203 : Structural Mechanics I

Prerequisites (i.e., required knowledge, skills, courses, etc.)

Comprehension of Japanese.
Finishing the classes of "Fundamentals of Mechanics of Materials A、B" and "Structural mechanics I"before taking this class in advance is desirable.

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