Precast Concrete Connections

Marvin Liebler, PE

Course Outline

(1)  General Considerations
(a)  Durability
(b)  Fire Resistance
(c)  Tolerances and Clearances
(2)  Details
(a)  Reinforcing Bar Development
(b)  Volumetric Changes
(c)  Grout
(d)  Shear-Friction
(e)  Epoxy Anchors
(3)  Supporting Structures
(a)  Corbels
(b)  Connection Angles
(4)  References

This course includes a multiple choice quiz at the end, which is designed to enhance the understanding of the course materials.

Learning Objective

At the conclusion of this course, the student will:

• Learn three (3) components of durability;
• Learn characteristics of fire resistance;
• Study standard E119 time-temperature curve;
• Learn temperature variation of reinforcement for different distances to edges, and different concrete weights;
• Study the four (4) types of column-foundation connections, with regard to eleven (11) points of consideration in design;
• Calculate development length of straight bars;
• Find development length of hooked bars;
• Calculate development length of headed bars;
• Find increase in beam deflection due to creep and shrinkage;
• Find force exerted by fully restrained concrete beam as a function of temperature;
• Learn grout detailing considerations;
• Study the shear-friction concept and applicable areas;
• Calculate shear-friction reinforcement;
• Learn the nine (9) points to be considered in designing epoxy anchors;
• Calculate epoxy anchor adjustment factors;
• Determine the circumstances when corbel design is required;
• Calculate Nu, d, and Vu for corbels;
• Design corbel reinforcement;
• Determine the applicability of connection angles; and

Intended Audience

(1)  Structural Design Engineers
(2)  Precast Concrete Manufacturers
(3)  Construction inspectors
(4)  Architects

Benefit to Attendees

The student will now have a knowledge of precast concrete connections, in sufficient detail to either check or design common connection types.

Course Introduction

This course provides for the study and calculation of precast concrete general considerations, details, and support structures.

Course Content

In this lesson, you are required to download and study the following course content in PDF format: