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This is a practical structural design course that contains step-by-step procedures that include instructions that help understand & design for slab on ground. This course presents information on the design of slabs-on-ground, primarily industrial floors.


 
Course Outline
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
Program Outline (1.2 CEUs / 12 PDHs) 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
              Instructor Dr. Gamal Abdelaziz, P.Eng, MSc. has a Ph.D. in Geotechnical Engineering from Concordia University, Montreal, Canada.
 
Currently he is a senior geotechnical engineer with Global Engineering , Edmonton , Alberta, Canada and adjunct professor at Ryerson university, Toronto, Ontario. He has over 22 years of experience in geotechnical and structural engineering, foundation design, teaching, research and consulting in Canada and overseas.   Dr. Abdelaziz is a former adjunct professor at University of Western Ontario, London, Ontario, Canada , visiting professor at Ryerson University, Toronto, Canada and part time professor at Seneca College, Toronto, Canada.
Dr. Abdelaziz is specialized in numerical modeling for solving sophisticated geotechnical engineering problems with respect to pile foundation and the linear and nonlinear analysis of soil-structure interaction. He designed charts to predict pressures acting on tunnels, and developed analytical model for pile bearing capacity prediction.
 
Dr. Abdelaziz authored a number of technical papers and delivered numerous internal and external workshops on various geotechnical and Municipal engineering topics. Dr. Abdelaziz has been involved in a number of projects in Canada and overseas, such as tunneling, silos, buildings, retaining structures, siphons, irrigation networks and many other civil engineering projects in terms of design and construction.
 
Dr. Abdelaziz is a member in different professional societies such as APEGGA, PEO, CGS, CDA, TAC and ABPA. He is also a reviewer for the Canadian Geotechnical Journal.
Prerequisites & Certificates
Pre-Requisites

Certificates offered

A certificate of completed Continuing Education Units (CEUs) will be granted at the end of this course. Each participant will receive a complete set of course notes and handouts that will serve as informative references.


Cancellation Policy
If you wish to withdraw from a course, you must advise us, in writing, including the official receipt. Our policies regarding refund are:

More than fifteen business days in advance: a full refund minus $50.00 administration charge.

Fifteen or less business days in advance: a transfer to another course or a credit, valid for one year, to another GIC course can be considered. Credits are transferable within your organization.

If the course has been running for more than 2 weeks, or after the course has started, an 80% credit towards another GIC course may be considered, if notice is received before the start date of the second session. After this time, no refunds or credits will be issued. If a speaker is not available due to unforeseen circumstances, another speaker of equal ability will be substituted.

GIC reserves the right to cancel or change the date or location of its events. GIC's responsibility will, under no circumstances, exceed the amount of the fee collected. GIC 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.

Refund Policy: Allow up to 30 days for refunds to be processed.

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