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Description / Abstract:
This document provides recommendations for design details and
structural framing guidelines to mitigate, control, or distribute
crack development in concrete members and structural systems. The
recommendations and guidelines are presented in terms of concepts
and effective practices that have been successfully implemented to
mitigate and control cracking. Specific reinforcement details are
presented for some situations, but not all, as the document is
intended to illustrate concepts and approaches rather than to
provide comprehensive details for all situations.
The reinforcement details shown in this document are for Grade
60 deformed steel reinforcing bars. Note that these reinforcement
details may not be sufficient when other types of reinforcement are
used, and in particular where the elastic properties (for example,
fiber-reinforced polymer), bond properties, or strength of the bars
are different.
This document specifically excludes the review of concrete
member cracking due to unique or special materials used, concrete
mixture proportions, or placing and finishing practices. The design
details presented herein are limited to building structures and may
not apply to special structures or nonbuilding structures. This
document is limited to castin- place concrete frames only, not to
precast concrete and masonry elements.