(1) To understand the positioning, design methods, and construction methods of Prestressed concrete structures in a concrete-based structure, and to explain the fundamental concepts of PC structures.
(2) To understand the structural design methods for PC structures and to perform cross-sectional calculations and structural designs for simple PC structures.
Outline:
This course explains the basic principles, structural design methods, and construction methods of Prestressed Concrete structures (PC structures), which enable the construction of long span structure buildings that are difficult to achieve with RC structures and allows for numerical control of bending crack widths. The instructor (Ichisawa) is in charge of the structural design of the PC structure in a company, and making use of their experiences will inform the students in the form of lectures on the latest the structural design methods.
Style:
This course primarily consists of lectures and exercises using handouts and slides. Additionally, exercises and assignments will be conducted as appropriate.
Notice:
The course requires fundamental knowledge in architectural building dynamics, reinforced concrete structures, and steel structures from year 4th and below, the students should sufficiently revise these topics.
Students attendance is required, and only a maximum of 5 absences is excused.
Students who miss 1/3 or more of classes will not be eligible for evaluation.
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Theme |
Goals |
| 2nd Semester |
| 3rd Quarter |
| 1st |
Introduction to overview, history, and examples of PC structures
Outline the advantages of PC structure and introduce examples of PC structure design and construction buildings presented with slides. |
Can understand the history of PC structures and can explain examples of design and construction of PC buildings.
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| 2nd |
Characteristics, regulations, and technical standards of PC structures
Explains the characteristics of PC structures compared to RC structures. Additionally, explains the laws and technical standards that must be complied with in PC structures. |
Can understand the characteristics of PC structures while comparing them with RC structures.
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| 3rd |
Principle of the PC structures and prestress introduction method to concrete
Explains the basic principles of PC structures using models. additionally, a detailed explanation of prestress introduction method using photographs. |
Can understand the basic principles of PC structures and the prestress introduction method into concrete.
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| 4th |
Types of materials used in PC structure, PC steel materials, and PC anchorage devices
Explains the materials used in PC structures.Additionally, explanation of PC steel and PC anchoring devices, which are the main materials for introducing prestress into concrete. |
Can understand the types of PC steel materials and PC anchorage devices.
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| 5th |
Material characteristics and allowable stress of PC steel materials
Explains the material characteristics of PC steel materials while comparing them with reinforcement. Additionally, explanation the allowable tensile stress level of PC steel materials. |
Can understand the material characteristics and the allowable tensile stress level of PC steel materials.
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| 6th |
Specified design strength and allowable stress of concrete
Explains the specified design strength of concrete applicable to PC structures, the necessary compressive strength when introducing prestress, and the allowable stress level of concrete (compressive and tensile). |
Can understand the specified design strength and the allowable stress level of concrete applied in PC structures.
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| 7th |
Structural design of PC structure (1)
Explains the stress considered at PC structures and the edge stress generated in the PC member cross-section. Additionally, explanation the basic principles of structural design for PC members. |
Can understand the basic principles of structural design for PC members.
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| 8th |
Structural design exercise of PC Structure (1)
Conducts exercises on the structural design of PC beams when a vertical load is applied and explain the process of the long-term allowable stress design for PC members. |
Can perform a simple structural design when a vertical load is applied to a simple PC beam.
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| 4th Quarter |
| 9th |
Relationship between PC Structure, PRC Structure, and RC Structure
Compares PC structures (Full PC, Partial PC), PRC structures, and RC structures, which are concrete-based structure, and explain the structural features of each structure. |
Can understand the structural features of PC structure (Full PC, Partial PC), PRC structure, and RC structure respectively.
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| 10th |
Secondary statically indeterminate stress caused by prestress introduction
Explains the secondary statically indeterminate stress specific to the PC structures caused by prestress introduction. Additionally, introduce efficient methods for applying secondary stress. |
Can understand the secondary statically indeterminate stress specific to the PC structures caused by prestress introduction.
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| 11th |
Loss of the prestress
Explains the factors by which the prestressing introduced into concrete decreases within a certain range over time. |
Can understand the factors by which the prestressing introduced into concrete decreases within a certain range over time.
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| 12th |
Effective prestress and calculation exercise for loss of the prestress
Explains the application method of loss of the prestress in structural calculation. Additionally, conduct computational exercises and explain the method for calculating prestress considering loss. |
Can understand the application method of loss of the prestress in structural calculation.
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| 13th |
Structural design of PC structure (2)
Explains the structural calculation route of PC structure while comparing it with RC structure. Additionally, explains the structural design methods for vertical loads and seismic loads in actual structural calculations. |
Can understand the structural calculation route of PC structure.
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| 14th |
Structural design exercise of PC Structure (2)
Conducts exercises in structural design of PC members for stress generated during horizontal loading and explain the ultimate strength design method applied to seismic loading design for frames or members of PC structures. |
Can perform the ultimate strength design for simple frames or members of PC structures.
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| 15th |
End-term Exam |
Can understand the contents from week1 to 15 through the exam.
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| 16th |
No end-term Exam |
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