ACI 562 2021

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ACI CODE-562-21: Assessment, Repair, and Rehabilitation of Existing Concrete Structures – Code and Commentary

Published By	Publication Date	Number of Pages
ACI	2021	88

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Category: ACI

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Description

ACI CODE-562-21, Assessment, Repair and Rehabilitation of Existing Concrete Structures Code Requirements and Commentary, was developed to provide design professionals a code for the assessment of the damage and deterioration, and the design of appropriate repair and rehabilitation strategies. The Code provides minimum requirements for assessment, repair, and rehabilitation of existing structural concrete buildings, members, systems and, where applicable, nonbuilding structures. ACI CODE-562-21 was specifically developed to work with the International Existing Building Code (IEBC) or to be adopted as a stand-alone code. Keywords: assessment; bond; corrosion; damage; durability; evaluation; existing structure; fiber-reinforced polymer (FRP); interface bond; licensed design professional; maintenance; rehabilitation; reliability; repair; strengthening.

PDF Catalog

PDF Pages	PDF Title
3	TITLE PAGE
5	PREFACE
7	CHAPTER 1—GENERAL REQUIREMENTS 1.1—Scope 1.2—General 1.3—Purpose 1.4—Applicability of this Code
9	1.5—Administration
10	1.6—Design and construction documents
11	1.7—Assessment, design, and construction requirements if used with an existing building code
13	1.8—Assessment, design, and construction requirements if not used with an existing building code
16	CHAPTER 2—NOTATION AND DEFINITIONS 2.1—Notation
17	2.2—Definitions
23	CHAPTER 3—REFERENCED STANDARDS
25	CHAPTER 4—CRITERIA AS A STAND-ALONE CODE FOR ASSESSMENT, REPAIR, AND REHABILITATION OF EXISTING STRUCTURES 4.1—General 4.2—Criteria for the assessment, repair, and rehabilitation design of existing concrete structures
26	4.3—Potentially dangerous structural conditions
27	4.4—Substantial structural damage
29	4.5—Conditions of deterioration, faulty construction, or damage less than substantial structural damage with strengthening
31	4.6—Conditions of deterioration, faulty construction, or damage less than substantial structural damage without strengthening 4.7—Additions
32	4.8—Alterations
33	4.9—Change of occupancy or use
34	CHAPTER 5—LOADS, FACTORED LOAD COMBINATIONS, AND STRENGTH REDUCTION FACTORS 5.1—General 5.2—Load factors and load combinations
35	5.3—Strength reduction factors for rehabilitation design 5.4—Strength reduction factors for assessment
36	5.5—Additional load combinations for structures rehabilitated with external reinforcing systems
39	CHAPTER 6—ASSESSMENT, EVALUATION, AND ANALYSIS 6.1—Structural assessment 6.2—Investigation and structural evaluation
40	6.3—Material properties
42	6.4—Test methods to quantify material and member properties
46	6.5—Structural analysis of existing structures
47	6.6—Structural serviceability 6.7—Structural analysis for repair design
48	6.8—Strength evaluation by load testing
50	CHAPTER 7—DESIGN OF STRUCTURAL REPAIRS 7.1—General 7.2—Strength and serviceability 7.3—Behavior of repaired systems
51	7.4—Interface bond of cementitious repair materials
54	7.5—Materials
55	7.6—Design and detailing considerations
59	7.7—Repair using supplemental post-tensioning
60	7.8—Repair using fiber-reinforced polymer (FRP) composites
61	7.9—Performance under fire and elevated temperatures
64	CHAPTER 8—DURABILITY 8.1—General
66	8.2—Cover 8.3—Cracks
68	8.4—Corrosion and deterioration of reinforcement and metallic embedments
70	8.5—Surface treatments and coatings
71	CHAPTER 9—CONSTRUCTION 9.1—General 9.2—Stability and temporary shoring requirements
73	9.3—Temporary conditions 9.4—Environmental issues
74	CHAPTER 10—QUALITY ASSURANCE 10.1—General 10.2—Inspection
76	10.3—Testing of repair materials
77	10.4—Construction observations
78	CHAPTER 11—COMMENTARY REFERENCES
83	Authored documents

Additional information

Standard Title	ACI CODE-562-21: Assessment, Repair, and Rehabilitation of Existing Concrete Structures – Code and Commentary
Published Code	ACI
Publication Date	2021
Pages Count	88

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ACI 562 2021

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