This is Part Two of a three-part course that covers the fundamentals of post-tensioned concrete for building structures using unbonded tendons. This course is intended to be an introductory course for structural engineers new to post-tensioned concrete design, and is a good refresher for experienced structural engineers. Part Two should be taken after Part One and prior to Part Three.
Part One gave us a brief historical background and how post-tensioned members are differentiated from pre-tensioned members. You learned about the load balancing concept, hyperstatic moments, pre-stress losses, the basic requirements of ACI 318 (Building Code Requirements for Structural Concrete), and nominal flexure and shear capacities of post-tensioned members.
Now, in Part Two, we will follow design examples of two of the structural systems commonly used in buildings and parking structures, namely a one-way continuous slab and a two-span beam. Part Two is an example-intensive course, with key concepts introduced along the way.
Part Three continues with the study of two-way, post-tensioned slab systems, including a complete design example using the Equivalent Frame concept. Part Three also covers related topics such as punching shear for two-way slabs and moment transfer at the column. Part Three is an example-intensive course, with key concepts introduced along the way.
By successfully completing all parts of this three-part course, you should be comfortable performing a preliminary design by hand and be able to quickly check a computer generated design or an existing design by hand.