On-Demand Course: Report on Torsion in Structural Concrete: Chapter 8 and 9

Price: $ 39.00 USD

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INSTRUCTIONS: Read and study the materials included in this module. Then, complete and pass the corresponding 10-question quiz with a score of 80% or higher to receive a certificate for 0.1 CEU (equivalent to 1.0 PDH). This online course is not approved for credit with the Florida Construction Industry Licensing Board (CILB).

Continuing Education Credit: 0.1 CEU (1 PDH)

Access Period: 30 days


This module based on Chapters 8 and 9 excerpted from ACI 445.1R-12, “Report on Torsion in Structural Concrete,” address the detailing requirements of transverse and longitudinal reinforcement in torsional members. Additionally, the chapters provide information about detailing at supports and review torsion design procedures by ACI 318-11, EC2-04, and CSA-A23.3-04 codes. This document was developed by ACI Committee 445 and approved by the ACI Technical Activities Committee.


Document Details

Publication Year: 2013


Categories: Torsion

Formats: Online Learning

Table of Contents

Learning Objectives:

1. Recognize the need for proper torsion reinforcement detailing for the safe design of reinforced and prestressed concrete members;

2. Explain how St. Venant’s circulatory shear flow pattern affects torsion design procedures in ACI 318-11;

3. Identify the limitations on effective closed tie spacing in members subjected to torsion; and

4. Understand the design assumptions for torsion provided in ACI 318-11.


Any applicable errata are included with individual documents at the time of purchase. Errata are not included for collections or sets of documents such as the ACI Collection. For a listing of and access to all product errata, visit the Errata page.

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