DETAILS AND DETAILING OF CONCRETE REINFORCEMENT (ACI 315-92) Reported by ACI Committee 315 Anthony L. Felder Chairman Ted Maclean Brown* Stanley Gordon Peter D. Courtois* Edward S. Hoffman Robert E. Doyle Robert W. Johnson Gustav G. Erlemann David W. Johnston Leo P. Flibotte Harry B. Lancelot, III Jules O.A. Gagnon, Jr. Gerald E. Goettsche Paul Gordon Douglas D. Lee J.I. Mann Peter Meza Roy H. Reiterman Paul F. Rice Milton R. Sees J. Maurice Spang, Jr. Anton Tedesko Bertrand K. Thornley A. Robert Vernec * Deceased This document provides standards of practice for both the Engineer and Reinforcing Steel Detaiier in showing reinforcement details. It is divided into three parts: one addressed to the Engineer, one for the Detailer, and a third providing tables and figures. It attempts to define the responsibilities of both the Engineer and Detailer. It then establishes certain standards of practice for both the engineering and placing drawings. Keywords: beams (supports); bending (reinforcing steels); bridges (structures); buildings; columns (supports); computers; concrete construction; concrete slabs; detailing; drafting (drawing); engineering drawings; fabrication; floor systems; foundations; hooked reinforcement; reinforced concrete; reinforcing steels; splicing; stirrups; structural design; ties (reinforcement); tolerances (mechanics); walls; welded wire fabric. FOREWORD Increased use of computers has led to sophisticated techniques of structural analysis and has also increased manufacturing and fabrication capabilities. The result is that more complex structures are being designed and built with structural members which have long spans, shallow depths, and contain a high percentage of rein- forcement. ACI Committee Reports, Guides, Standard Practices, and Commentaries are intended for guidance in designing, planning, executing, or inspecting construction, and in preparing specifications. Reference to these documents shall not be made in the Project Documents. If items found in these documents are desired to be part of the Project Documents, they should be phrased in mandatory language and incorporated into the Project Documents. Participation by Federal agency representatives in the work of the American Concrete Institute and in the devel- opment of Institute standards does not constitute Govern- ment endorsement of ACI or the standards which it develops. In the past, during the course of developing placing drawings, the Detailer often suggested solutions in areas where the details were incomplete and where the rein- forcing steel appeared to have constructibility problems. Usually these solutions were used only after their acceptance by the Engineer. Unfortunately, many prob- lems do not surface during the detailing phase but rather occur during construction. The Engineer and the Con- tractor, working together, then solve the problem. The Engineer prepares the structural design to meet the requirements of the applicable building code and provides sufficient definition through the design docu- ments to convey all the requirements for detailing rein- forcing steel. It is then the Detailer’s responsibility to develop all of the dimensions and quantities of the rein- forcing steel to conform with the drawings and specifica- tions of the Engineer. As the complexity of design and construction increase, it is imperative that both Engineer and Detailer clearly understand their responsibilities. The responsibilities of the Engineer and the Detailer as they apply to the con- The document was approved by the Expedited Standardization Procedure effective March 1992. Adopted as a standard of the American Concrete Institute, Oct. 1, 1980, in accordance with the Institute’s standardization procedure. It was revised by the Expedited Procedure effective Sept. 1, 1986, and Mar. 1, 1992, and supersedes 315-80 (Revised 1986)(Reapproved 1991). This standard, together with the “Manual of Eugineering and Placing Drawings for Reinforced Concrete Structures (ACI 315R)," comprises the ACI Detailing Manual, SP-66. Copyright 0 1992, American Concrete Institute. All rights reserved including the rights of reproduction and use in any form or by any means, including the making of copies by any photo process, or by any electronic or mechanical device, printed, written or oral, or recording for sound or visual reproduction or for use in any knowledge or retrieval system or device, unless permission in writing is obtained from the copyright proprietors. DETAILS AND DETAILING 1
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