Appendix 4—Slab design using post-tensioning

DESIGN OF SLABS-ON-GROUND
360R-3
A4.2—Design example: Using post-tensioning to minimize
cracking
A4.3—Design example: Equivalent tensile stress design
Appendix 5—Examples using shrinkage-
compensating concrete, p. 360R-72
A5.1—Introduction 
A5.2—Example with amount of steel and slab joint
spacing predetermined
Appendix 6—Design examples for steel FRC 
slabs-on-ground using yield line method,
p. 360R-72
A6.1—Introduction
A6.2—Assumptions/design criteria
Conversion factors, p. 360R-74
CHAPTER 1—INTRODUCTION
1.1—Purpose and scope
This guide presents state-of-the-art information on the
design of slabs-on-ground. Design is defined as the decision-
making process of planning, sizing, detailing, and developing
specifications preceding construction of slabs-on-ground.
Information on other aspects, such as materials, construction
methods, placement of concrete, and finishing techniques, is
included only where it is needed in making design decisions.
In the context of this guide, slab-on-ground is defined as:
a slab, supported by ground, whose main purpose is to
support the applied loads by bearing on the ground. The slab
may be of uniform or variable thickness, and it may include
stiffening elements such as ribs or beams. The slab may be
unreinforced, reinforced, or post-tensioned concrete. The
reinforcement steel may be provided to limit the crack
widths resulting from shrinkage and temperature restraint
and the applied loads. Post-tensioning steel may be provided
to minimize cracking due to shrinkage and temperature
restraint and to resist the applied loads.
This guide covers the design of slabs-on-ground for loads
from material stored directly on the slab, storage rack loads,
and static and dynamic loads associated with equipment and
vehicles. Other loads, such as loads on the roof transferred
through dual-purpose rack systems, are also mentioned.
In addition to design, this guide discusses soil-support
systems; shrinkage and temperature effects; cracking, curling
or warping; and other concerns affecting slab design. Although
the same general principles are applicable, this guide does not
specifically address the design of roadway pavements, airport
pavements, parking lots, and mat foundations.

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