PCA notes on ACI 318-08
Updated: Aug 26, 2022
PREFACE
The “Building Code Requirements for Structural Concrete” (“Code”) covers the materials, design, and construction
of structural concrete used in buildings and where applicable in nonbuilding structures. The Code also covers the
strength evaluation of existing concrete structures.
Among the subjects covered are: drawings and specifications; inspection; materials; durability requirements;
concrete quality, mixing, and placing; formwork; embedded pipes; construction joints; reinforcement details; analysis
and design; strength and serviceability; flexural and axial loads; shear and torsion; development and splices of
reinforcement; slab systems; walls; footings; precast concrete; composite flexural members; prestressed concrete; shells
and folded plate members; strength evaluation of existing structures; provisions for seismic design; structural plain
concrete; strut-and-tie modeling in Appendix A; alternative design provisions in Appendix B; alternative load and
strength reduction factors in Appendix C; and anchoring to concrete in Appendix D.
The quality and testing of materials used in construction are covered by reference to the appropriate ASTM standard
specifications. Welding of reinforcement is covered by reference to the appropriate AWS standard.
Uses of the Code include adoption by reference in general building codes, and earlier editions have been widely used
in this manner. The Code is written in a format that allows such reference without change to its language. Therefore,
background details or suggestions for carrying out the requirements or intent of the Code portion cannot be included.
The Commentary is provided for this purpose. Some of the considerations of the committee in developing the Code
portion are discussed within the Commentary, with emphasis given to the explanation of new or revised provisions.
Much of the research data referenced in preparing the Code is cited for the user desiring to study individual questions
in greater detail. Other documents that provide suggestions for carrying out the requirements of the Code are also cited.
Comments