Distance - Slab on Ground Design Workshop (1.2 CEUs)

Course Code: CVL071d

ARE YOU:

Looking for professional development but do not have the time to take off from work?
Looking for refresher course on specific engineering topics and cannot find an intensive course to serve your needs?
This may be your ideal Professional Development course!

Find out more on how the Professional Development Distance Program may work for you - Click here

Duration:

This course is approximately 3 weeks in duration.

Learning Method:

The PDDP program is more of a self-guided learning style.
You are required to read the notes and materials given, complete the follow-up assignments on your own, send in your questions prior to your 1 hour webinar meeting (if required) and be involved in live discussion via the internet.
Once you have completed the course, you will receive a certificate of completion

Description
This course is a practical structural design course that contains step-by-step procedures that include instructions that help understand and design for slab on ground. This course presents information on the design of slabs-on-ground, primarily industrial floors. The course addresses the planning, design, and detailing of slabs. Background information on design theories is followed by discussion of the types of slabs, soil-support systems, loadings, and jointing. Design methods are given for unreinforced concrete, reinforced concrete, shrinkage-compensating concrete, post-tensioned concrete and fiberreinforced concrete slabs-on-ground, followed by information on shrinkage and curling problems. Advantages and disadvantages of each of these slab designs are provided, including the ability of some slab designs to minimize cracking and curling more than others. Several design methodology will be introduced including the ACI design methodology. Examples using several design methods are also provided.

Objectives:
This course will provide the participants with an understanding of the subgrade drag theory and how it relates to the reinforcing of slab-on-grades as required to help control shrinkage cracking. Two other alternate design methods are also discussed relative to the sizing of "distribution" slab-on-grade reinforcement. Different types of reinforcing materials are also discussed including welded wire fabric, conventional deformed reinforcing bars and post-tensioning tendons.

Target Audience

Structural site Engineers and even design Engineers needing to refresh their design skills according to the new building code and design standards
Structural contractors wanting to know how the structures they erect are designed
Structural draftsmen wanting to know how the structures they draw are designed
Architects and non-structural engineers such as Mechanical, Electrical and Plant Engineers interested in upgrading their knowledge and skills in the area of structural design

Learning Outcomes
This course will introduce you to the current codes and standards that govern structural design of slab on ground, including the structural provisions of the ACI . You will also learn:

Basic understanding of codes and design methods.
This course will enable the user to become familiar with the following methods of designing slab-on-ground:
- PCA method
- Slab thickness design by WRI method
- COE charts
- Equivalent tensile stress design
- Shrinkage-compensating concrete using post-tensioning to minimize cracking

The PDDP Distance Education program works as follows:

Once you register for this course, you will be sent a login username and password for our online distance website.

You will receive the course notes in hard copy through the online website, you will receive a set of notes each week covering the course material.
A one hour video-conference session will be conducted by your instructor each week (if required). The objective of this session is to assist in solving the assignments, as well as answer student questions that should be sent to instructor early enough prior to the meeting time. In addition with being able to communicate with the instructor, you will also be able to communicate with other students in the same class and watch their questions being answered as well. (A high speed internet connection is strongly recommended for this feature).
Each set of exercises can be completed and submitted by the indicated date and your completed exercise will be marked online and and returned by your instructor.
To gain the most from your course, it is highly recommended that you participate fully in all discussions and exercises. Please remember that each course has a form of quiz or exercise at the end to test your understanding of the material. You will be informed of these dates when you receive the course schedule.

*Course commencement date is subject to instructor availability.

Concrete slabs-on-ground are highly susceptible to cracking due to shrinkage. Construction and control joints are typically used to control crack location. Since it is not always desirable or practical to use a large number of closely spaced joints, reinforcing of the slab-on-grade allows for greater flexibility with joint spacing. Welded wire mesh or deformed bar reinforcement normally used in slabs-on-ground helps to control the width or growth of any cracks that may occur. This type of steel is sometimes called distribution reinforcement to differentiate it from structural reinforcement that is added to increase the load-carrying capacity of the slab.

Introduction

Design theories for slabs-on-ground
Slab types
Design and construction variables
Support systems for slabs-on-ground,
Geotechnical engineering reports
Subgrade classification
Modulus of subgrade reaction
Design of slab-support system
Site preparation
Inspection and site testing of slab support
Special slab-on-ground support problems

Loads

Vehicular loads, concentrated loads, distributed loads, line and strip loads, unusual loads & construction loads
Environmental factors
Factors of safety

Joints

Load-transfer mechanisms
Sawcut contraction joints
Joint protection
Joint filling and sealing
Design of unreinforced concrete slabs
Thickness design methods
Shear transfer at joints
Maximum joint spacing
Design of slabs reinforced for crackwidth control
Thickness design methods
Reinforcement for crack-width control only
Reinforcement for moment capacity
Reinforcement location
Design of shrinkage-compensating concrete slabs

Thickness determination

Reinforcement
Design of post-tensioned slabs-onground
Applicable design procedures
Slabs post-tensioned for crack control
Industrial slabs with post-tensioned reinforcement for structural support
Residential slabs with post-tensioned reinforcement for structural action
Design for slabs on expansive soils
Design for slabs on compressible soil
Fiber-reinforced concrete slabs-onground
Polymeric fiber reinforcement
Steel fiber reinforcement

Structural slabs-on-ground supporting building code loads

Design considerations
Design and specification considerations
Temperature drawdown
Reducing effects of slab shrinkage and curling drying and thermal shrinkage
Curling and warping
Factors that affect shrinkage and curling
Compressive strength and shrinkage
Compressive strength and abrasion resistance
Removing restraints to shrinkage
Base and vapor retarders/barriers
Distributed reinforcement to reduce curling and number of joints
Thickened edges to reduce curling
Relation between curing and curling
Warping stresses in relation to joint spacing
Warping stresses and deformation
Effect of eliminating sawcut contraction joints with post-tensioning or shrinkage-compensating concrete

Design Examples

Design examples using PCA method
Slab thickness design by WRI method
Design examples using COE charts
Slab design using post-tensioning
Design example: residential slabs on expansive soil
Design example: using post-tensioning to minimize cracking
Design example: equivalent tensile stress design
Examples using shrinkage compensating concrete
Example with amount of steel and slab joint spacing predetermined
Design examples for steel FRC slabs-on-ground using yield line method

TLNT reserves the right to cancel or change the date or location of its events. TLNT's responsibility will, under no circumstances, exceed the amount of the fee collected. TLNT is not responsible for the purchase of non-refundable travel arrangements or accommodations or the cancellation/change fees associated with cancelling them. Please call to confirm that the course is running before confirming travel arrangements and accommodations. Please click here for complete policies.

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