On-Demand Course: Design Detailing to Mitigate and Control Cracking

Price: $ 39.00 USD

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INSTRUCTIONS: View the recorded webinar. Complete 10-question quiz with a score of 80% or higher to receive a certificate for 0.1 CEU (equivalent to 1.0 PDH).

Continuing Education Credit: 0.1 CEU (1 PDH)

Approved by AIA and ICC

Access Period: 30 days


This is a recorded webinar from March 3, 2015.

ACI Committee 224 has developed a new document ACI 224.4R-13 “Guide to Design Detailing to Mitigate Cracking” that provides recommendations for design details and structural framing guidelines to mitigate and control cracking in concrete buildings. The objective of this document is to address the mitigation and control of cracking by considering the overall nature of a structure and how members may experience additional cross-sectional stresses due to the restraint caused by the structural system. The effect of the geometry and layout of the concrete framing system on the unexpected cracking of individual members or joints is discussed, and recommendations for more favorable arrangements of structural framing to minimize restraint are presented. Additionally, specific framing conditions where the cracking of a particular part of the structure is directly or indirectly affected by the neighboring elements or the overall framing system are discussed, and suggested reinforcement and release details to avoid or minimize such cracking are provided. This recorded webinar from March 3, 2015 will present the main aspects of the document in terms of mitigation concepts, reinforcement details and effective practices to mitigate and control cracking.


Document Details

Author: West, Jeff

Publication Year: 2015


Categories: Cracking, Design, Reinforcement

Formats: Online Learning

Table of Contents

Learning Objectives:

1. Identify aspects of the structural system that may lead to development of cracking due to restraint effects;

2. Identify the possible predominant crack development, crack types, and crack locations for the main components of the structure, including one- and two-way slabs, columns and slabs-on-ground;

3. Consider alternate structural system arrangements that may reduce the formation of restraint cracking;

4. Examine and select appropriate design details, including reinforcement and release details to mitigate and control cracking; and

5. Improve the strength, serviceability (deflection and durability), and aesthetics of a concrete structure through effective detailing.


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