About this courseSkip About this course
Built-up plate girders are used extensively in bridges and as transfer girders in buildings.
This course will cover the design of built-up plate girders with an emphasis on proportioning, shear and flexural strength, and local/global stability.
Students will leave this course with an in-depth knowledge of relevant limit states and failure modes as well as a familiarity with the AISC360 (American Institute of Steel Construction) provisions for plate girder design. This course is best suited for students with an undergraduate civil engineering background including a basic steel design course and will build on these concepts.
Students will learn from a top researcher with over 20 years of experience in the field. Professor Varma focuses on teaching through exploring example problems and applications of fundamental concepts, encouraging his students to both understand the fundamental principles of plate girder behavior and be able to apply these concepts in realistic design scenarios.
This course is available to practicing engineers for 1.5 CEUs for learners completing the course on the verified track.
What you'll learnSkip What you'll learn
- Understand basic buckling theory including beam and plate buckling behavior.
- Proportion plate girders appropriately for strength and stability requirements.
- Evaluate the flexural capacity of I-shaped plate girders regardless of component slenderness.
- Describe the different shear force transfer mechanisms in plate girders including the shear strength of webs with and without tension field action and effects of transverse stiffeners.
- Evaluate the shear capacity of an I-shaped plate girder and design transverse stiffeners as appropriate.
Week 1: Steel as a Material and Beam Buckling Review
Introduce the course and review important steel behavior and beam buckling concepts.
Week 2: Proportioning Plate Girders and Local Buckling
Discuss initial sizing of plate girders and local buckling concerns.
Week 3: Plate Girder Flexural Capacity (AISC 360 F2 and F3)
Introduce AISC provisions and discuss in detail plate girder design following F2 (doubly symmetric, compact sections) and F3 (doubly symmetric I-shaped members with compact webs and noncompact or slender flanges) provisions using an example.
Week 4: Plate Girder Flexural Capacity (AISC360 F4 and F5)
Discuss in detail plate girder design following AISC 360 F4 (Other I-shaped members with compact or noncompact webs bent about their major axis) and F5 (Doubly symmetric and singly symmetric I-shaped members with slender webs bent about their major axis) provisions using an example.
Week 5: Plate Girder Shear Capacity – Intro and Basic Theory of Shear Capacity
Discuss plate girder shear capacity including the shear capacity of an I-shaped section, yield criteria, and buckling behavior.
Week 6: Plate Girder Shear Capacity – Tension Field Action
Introduce tension field action and discuss its contribution to the shear strength of plate girders through a design example.
Week 7: Plate Girder Shear Capacity – Transverse Stiffeners and Design Examples
Discuss transverse stiffeners design and finish with two plate girder design examples.
Week 8: Exam Review
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