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ACI 530 530.1 13:2013 Edition

ACI 530 530.1 13:2013 Edition

$75.29

530/530.1-13: Building Code Requirements and Specification for Masonry Structures and Companion Commentaries

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ACI 2013 388
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Building Code Requirements and Specification for Masonry Structures contains two standards and their commentaries: Building Code Requirements for Masonry Structures (ACI 530-13) and Specification for Masonry Structures (ACI 530.1-13). These standards are produced through the joint efforts of The Masonry Society (TMS), the American Concrete Institute (ACI), and the Structural Engineering Institute of the American Society of Civil Engineers (SEI/ASCE) through the Masonry Standards Joint Committee (MSJC). The Code covers the design and construction of masonry structures while the Specification is concerned with minimum construction requirements for masonry in structures. Some of the topics covered in the Code are: definitions, contract documents; quality assurance; materials; placement of embedded items; analysis and design; strength and serviceability; flexural and axial loads; shear; details and development of reinforcement; walls; columns; pilasters; beams and lintels; seismic design requirements; glass unit masonry; veneers; and autoclaved aerated concrete masonry. An empirical design method and a prescriptive method applicable to buildings meeting specific location and construction criteria are also included. The Specification covers subjects such as quality assurance requirements for materials; the placing, bonding and anchoring of masonry; and the placement of grout and of reinforcement. This Specification is meant to be modified and referenced in the Project Manual. The Code is written as a legal document and the Specification as a master specification required by the Code. The commentaries present background details, committee considerations, and research data used to develop the Code and Specification. The Commentaries are not mandatory and are for information of the user only.

PDF Catalog

PDF Pages PDF Title
2 ABSTRACT
9 530-13 Building Code Requirements for Masonry Structures
TABLE OF CONTENTS
17 SYNOPSIS
19 PART 1: GENERAL
CHAPTER 1 – GENERAL REQUIREMENTS
1.1 — Scope
1.1.1 Minimum requirements
1.1.2 Governing building code
1.1.3 SI information
20 1.2 — Contract documents and calculations
1.2.1
1.2.2
21 1.2.3
1.2.4
22 1.3 — Approval of special systems of design or construction
1.4 — Standards cited in this Code
25 CHAPTER 2 – NOTATION AND DEFINITIONS
2.1 — Notation
32 2.2 — Definitions
43 CHAPTER 3 – QUALITY AND CONSTRUCTION
3.1 — Quality Assurance program
3.1.1 Level A Quality Assurance
44 3.1.2 Level B Quality Assurance
3.1.2.1
3.1.2.2
3.1.3 Level C Quality Assurance
3.1.4 Procedures
45 3.1.5 Qualifications
49 3.1.6 Acceptance relative to strength requirements
3.1.6.1 Compliance with f ‘m
3.1.6.2 Determination of compressive strength
3.2 — Construction considerations
3.2.1 Grouting, minimum spaces
50 3.2.2 Embedded conduits, pipes, and sleeves
3.2.2.1
3.2.2.2
3.2.2.3
3.2.2.4
53 PART 2: DESIGN REQUIREMENTS
CHAPTER 4 – GENERAL ANALYSIS AND DESIGN CONSIDERATIONS
4.1 — Loading
4.1.1 General
4.1.2 Load provisions
4.1.3 Lateral load resistance
4.1.4 Load transfer at horizontal connections
4.1.4.1
4.1.4.2
4.1.4.3
54 4.1.5 Other effects
4.1.6 Lateral load distribution
4.1.6.1
4.1.6.2
4.1.6.3
55 4.2 — Material properties
4.2.1 General
56 4.2.2 Elastic moduli
4.2.2.1 Steel reinforcement
4.2.2.2 Clay and concrete masonry
4.2.2.2.1
4.2.2.2.2
4.2.2.3 AAC masonry
4.2.2.3.1
4.2.2.3.2
4.2.2.4 Grout
58 4.2.3 Coefficients of thermal expansion
4.2.3.1 Clay masonry
4.2.3.2 Concrete masonry
4.2.3.3 AAC masonry
4.2.4 Coefficient of moisture expansion for clay masonry
4.2.5 Coefficients of shrinkage
4.2.5.1 Concrete masonry
4.2.5.2 AAC masonry
4.2.6 Coefficients of creep
4.2.6.1 Clay masonry
4.2.6.2 Concrete masonry
4.2.6.3 AAC masonry
59 4.2.7 Prestressing steel
4.3 — Section properties
4.3.1 Stress calculations
4.3.1.1
4.3.1.2
60 4.3.2 Stiffness
61 4.3.3 Radius of gyration
4.3.4 Bearing area
62 4.4 — Connection to structural frames
63 4.5 — Masonry not laid in running bond
65 CHAPTER 5 – STRUCTURAL ELEMENTS
5.1 — Masonry assemblies
5.1.1 Intersecting walls
5.1.1.1
5.1.1.2 Design of wall intersection
5.1.1.2.1
5.1.1.2.2
5.1.1.2.3
5.1.1.2.4
5.1.1.2.5
68 5.1.2 Effective compressive width per bar
5.1.2.1
5.1.2.2
69 5.1.3 Concentrated loads
5.1.3.1
5.1.3.2
71 5.1.4 Multiwythe masonry elements
5.1.4.1
5.1.4.2 Composite action
5.1.4.2.1
5.1.4.2.2
5.1.4.2.3
73 5.1.4.3 Non-composite action
5.1.4.3.1
5.1.4.3.2
75 5.2 — Beams
5.2.1 General beam design
5.2.1.1 Span length
5.2.1.1.1
5.2.1.1.2
5.2.1.2 Lateral support
5.2.1.3 Bearing length
5.2.1.4 Deflections
5.2.1.4.1
76 5.2.1.4.2
5.2.1.4.3
77 5.2.2 Deep beams
5.2.2.1 Effective span length
78 5.2.2.2 Internal lever arm
5.2.2.3 Flexural reinforcement
5.2.2.4 Minimum shear reinforcement
79 5.2.2.5 Total reinforcement
5.3 — Columns
5.3.1 General column design
5.3.1.1 Dimensional limits
5.3.1.2 Construction
5.3.1.3 Vertical reinforcement
80 5.3.1.4 Lateral ties
5.3.2 Lightly loaded columns
81 5.4 — Pilasters
5.5 — Corbels
5.5.1 Load-bearing corbels
5.5.2 Non-load-bearing corbels
85 CHAPTER 6 – REINFORCEMENT, METAL ACCESSORIES, AND ANCHOR BOLTS
6.1 — Details of reinforcement and metal accessories
6.1.1 Embedment
6.1.2 Size of reinforcement
6.1.2.1
6.1.2.2
6.1.2.3
6.1.3 Placement of reinforcement
6.1.3.1
6.1.3.2
6.1.3.3
86 6.1.3.4
6.1.3.5
6.1.4 Protection of reinforcement and metal accessories
6.1.4.1
87 6.1.4.2
6.1.4.3
6.1.5 Standard hooks
6.1.6 Minimum bend diameter for reinforcing bars
89 6.2 — Anchor bolts
6.2.1 Placement
91 6.2.2 Projected area for axial tension
92 6.2.3 Projected area for shear
94 6.2.4 Effective embedment length for headedanchor bolts
6.2.5 Effective embedment length for bent-baranchor bolts
95 6.2.6 Minimum permissible effective embedmentlength
6.2.7 Anchor bolt edge distance
97 CHAPTER 7 – SEISMIC DESIGN REQUIREMENTS
7.1 — Scope
98 7.2 — General analysis
7.2.1 Element interaction
7.2.2 Load path
7.2.3 Anchorage design
7.2.4 Drift limits
100 7.3 — Element classification
7.3.1 Nonparticipating elements
7.3.2 Participating elements
102 7.3.2.1 Empirical design of masonry shear walls
7.3.2.2 Ordinary plain (unreinforced) masonry shear walls
7.3.2.3 Detailed plain (unreinforced) masonry shear walls
7.3.2.3.1 Minimum reinforcement requirements
103 7.3.2.4 Ordinary reinforced masonry shear walls
7.3.2.5 Intermediate reinforced masonry shear walls
7.3.2.6 Special reinforced masonry shear walls
104 7.3.2.6.1 Shear capacity design
7.3.2.6.1.1
105 7.3.2.6.1.2
7.3.2.7 Ordinary plain (unreinforced) AAC masonry shear walls
7.3.2.7.1 Anchorage of floor and roof diaphragms in AAC masonry structures
7.3.2.8 Detailed plain (unreinforced) AAC masonry shear walls
7.3.2.8.1 Minimum reinforcement requirements
106 7.3.2.9 Ordinary reinforced AAC masonry shear walls
7.3.2.9.1 Shear capacity design
7.3.2.10 Ordinary plain (unreinforced) prestressed masonry shear walls
7.3.2.11 Intermediate reinforced prestressed masonry shear walls
107 7.3.2.12 Special reinforced prestressed masonry shear walls
108 7.4 — Seismic Design Category requirements
7.4.1 Seismic Design Category A requirements
7.4.1.1 Design of nonparticipating elements
7.4.1.2 Design of participating elements
7.4.2 Seismic Design Category B requirements
7.4.2.1 Design of participating elements
109 7.4.3 Seismic Design Category C requirements
7.4.3.1 Design of nonparticipating elements
7.4.3.2 Design of participating elements
110 7.4.3.2.1
7.4.3.2.2 Anchorage of floor and roof diaphragms in AAC masonry structures
7.4.3.2.3 Material requirements
7.4.3.2.4 Lateral stiffness
7.4.3.2.5 Design of columns, pilasters, and beams supporting discontinuous elements
111 7.4.4 Seismic Design Category D requirements
7.4.4.1 Design of nonparticipating elements
7.4.4.2 Design of participating elements
112 7.4.4.2.1 Minimum reinforcement for masonry columns
7.4.4.2.2 Material requirements
7.4.4.2.3 Lateral tie anchorage
7.4.5 Seismic Design Categories E and F requirements
7.4.5.1 Minimum reinforcement fo rnonparticipating masonry elements not laid in running bond
113 PART 3: ENGINEERED DESIGN METHODS
CHAPTER 8 – ALLOWABLE STRESS DESIGN OF MASONRY
8.1 — General
8.1.1 Scope
8.1.2 Design strength
114 8.1.3 Anchor bolts embedded in grout
8.1.3.1 Design requirements
8.1.3.2 Allowable loads determined by test
8.1.3.2.1
8.1.3.2.2
8.1.3.3 Allowable loads determined by calculation for headed and bent-bar anchor bolts
8.1.3.3.1 Allowable axial tensile load of headed and bent-bar anchor bolts
8.1.3.3.1.1 Allowable axial tensile load of headed anchor bolts
115 8.1.3.3.1.2 Allowable axial tensile load of bent-bar anchor bolts
8.1.3.3.2 Allowable shear load of headed and bent-bar anchor bolts
8.1.3.3.3 Combined axial tension and shear
116 8.1.4 Shear stress in multiwythe masonry elements
8.1.4.1
8.1.4.2
8.1.5 Bearing stress
117 8.1.6 Development of reinforcement embedded in grout
8.1.6.1 General
8.1.6.2 Development of wires in tension
8.1.6.3 Development of bars in tension or compression
118 8.1.6.4 Embedment of flexural reinforcement
8.1.6.4.1 General
8.1.6.4.1.1
8.1.6.4.1.2
8.1.6.4.1.3
120 8.1.6.4.1.4
8.1.6.4.1.5
8.1.6.4.1.6
8.1.6.4.2 Development of positive moment reinforcement
8.1.6.4.3 Development of negative moment reinforcement
8.1.6.4.3.1
8.1.6.4.3.2
121 8.1.6.5 Hooks
8.1.6.5.1
8.1.6.5.2
8.1.6.6 Development of shear reinforcement
8.1.6.6.1 Bar and wire reinforcement
8.1.6.6.1.1
8.1.6.6.1.2
8.1.6.6.1.3
8.1.6.6.1.4
8.1.6.6.1.5
122 8.1.6.6.2 Welded wire reinforcement
8.1.6.6.2.1
8.1.6.6.2.2
8.1.6.7 Splices of reinforcement
123 8.1.6.7.1 Lap splices
8.1.6.7.1.1
8.1.6.7.1.2
8.1.6.7.1.3
8.1.6.7.2 Welded splices
125 8.1.6.7.3 Mechanical splices
8.1.6.7.4 End-bearing splices
8.1.6.7.4.1
8.1.6.7.4.2
8.1.6.7.4.3
8.1.6.7.5 Splicing of wires in tension
8.1.6.7.5.1 Lap splices
8.1.6.7.5.2 Welded splices
8.1.6.7.5.3 Mechanical splices
126 8.2 — Unreinforced masonry
8.2.1 Scope
8.2.2 Design criteria
8.2.3 Design assumptions
8.2.4 Axial compression and flexure
8.2.4.1 Axial and flexural compression
129 8.2.4.2 Flexural tension
132 8.2.5 Axial tension
8.2.6 Shear
8.2.6.1
133 8.2.6.2
8.2.6.3
134 8.3 — Reinforced masonry
8.3.1 Scope
8.3.2 Design assumptions
8.3.3 Steel reinforcement — Allowable stresses
8.3.3.1
8.3.3.2
8.3.3.3
8.3.4 Axial compression and flexure
8.3.4.1
135 8.3.4.2 Allowable forces and stresses
8.3.4.2.1
8.3.4.2.2
136 8.3.4.3 Columns
137 8.3.4.4 Walls
8.3.5 Shear
8.3.5.1
8.3.5.1.1
138 8.3.5.1.2
8.3.5.1.3
8.3.5.1.4
8.3.5.2
139 8.3.5.2.1
8.3.5.2.2
8.3.5.3
8.3.5.4
141 CHAPTER 9 – STRENGTH DESIGN OF MASONRY
9.1 — General
9.1.1 Scope
9.1.2 Required strength
9.1.3 Design strength
9.1.4 Strength-reduction factors
142 9.1.4.1 Anchor bolts
9.1.4.2 Bearing
9.1.4.3 Combinations of flexure and axial load in unreinforced masonry
9.1.4.4 Combinations of flexure and axial load in reinforced masonry
9.1.4.5 Shear
9.1.5 Deformation requirements
9.1.5.1 Deflection of unreinforced (plain) masonry
9.1.5.2 Deflection of reinforced masonry
143 9.1.6 Anchor bolts embedded in grout
9.1.6.1 Design requirements
9.1.6.2 Nominal strengths determined by test
9.1.6.2.1
9.1.6.2.2
9.1.6.3 Nominal strengths determined by calculation for headed and bent-bar anchor bolts
9.1.6.3.1 Nominal tensile strength of headed and bent-bar anchor bolts
144 9.1.6.3.1.1 Axial tensile strength of headed anchor bolts
9.1.6.3.1.2 Axial tensile strength of bent-bar anchor bolts
9.1.6.3.2 Shear strength of headed and bent-bar anchor bolts
145 9.1.6.3.3 Combined axial tension and shear
9.1.7 Shear strength in multiwythe masonry elements
9.1.7.1
9.1.7.2
9.1.8 Nominal bearing strength
9.1.9 Material properties
9.1.9.1 Compressive strength
9.1.9.1.1 Masonry compressive strength
9.1.9.1.2 Grout compressive strength
146 9.1.9.2 Masonry modulus of rupture
147 9.1.9.3 Reinforcement strengths
9.1.9.3.1 Reinforcement for in-plane flexural tension and flexural tension perpendicular to bed joints
9.1.9.3.2 Reinforcement for in-plane shear and flexural tension parallel to bed joints
148 9.2 — Unreinforced (plain) masonry
9.2.1 Scope
9.2.2 Design criteria
9.2.3 Design assumptions
9.2.4 Nominal flexural and axial strength
9.2.4.1 Nominal strength
9.2.4.2 Nominal axial strength
149 9.2.4.3 P-Delta effects
9.2.4.3.1
9.2.4.3.2
9.2.4.3.3
150 9.2.4.3.4
9.2.5 Axial tension
151 9.2.6 Nominal shear strength
9.2.6.1
9.2.6.2
152 9.3 — Reinforced masonry
9.3.1 Scope
9.3.2 Design assumptions
153 9.3.3 Reinforcement requirements and details
9.3.3.1 Reinforcement size limitations
9.3.3.2 Standard hooks
9.3.3.3 Development
154 9.3.3.3.1
9.3.3.3.2
9.3.3.3.2.1
9.3.3.3.2.2
9.3.3.3.2.3
9.3.3.3.3
155 9.3.3.4 Splices
156 9.3.3.5 Maximum area of flexural tensilereinforcement
9.3.3.5.1
9.3.3.5.2
9.3.3.5.3
157 9.3.3.5.4
158 9.3.3.6 Bundling of reinforcing bars
9.3.3.7 Joint reinforcement used as shear reinforcement
9.3.4 Design of beams, piers, and columns
9.3.4.1 Nominal strength
9.3.4.1.1 Nominal axial and flexural strength
159 9.3.4.1.2 Nominal shear strength
9.3.4.1.2.1 Nominal masonry shear strength
9.3.4.1.2.2 Nominal shear strength provided by reinforcement
160 9.3.4.2 Beams
9.3.4.2.1
9.3.4.2.2
9.3.4.2.2.1
9.3.4.2.2.2
9.3.4.2.2.3
9.3.4.2.3 Transverse reinforcement
161 9.3.4.2.4 Construction
9.3.4.3 Piers
9.3.4.3.1
9.3.4.3.2 Longitudinal reinforcement
9.3.4.3.3 Dimensional limits
162 9.3.5 Wall design for out-of-plane loads
9.3.5.1 Scope
9.3.5.2 Nominal axial and flexural strength
9.3.5.3 Nominal shear strength
9.3.5.4 P-delta effects
9.3.5.4.1
9.3.5.4.2
163 9.3.5.4.3
164 9.3.5.4.4
9.3.5.4.5
9.3.5.5 Deflections
9.3.5.5.1
165 9.3.5.5.2
9.3.6 Wall design for in-plane loads
9.3.6.1 Scope
9.3.6.2 Reinforcement
9.3.6.3 Flexural and axial strength
9.3.6.4 Shear strength
9.3.6.5
166 9.3.6.5.1
9.3.6.5.2
9.3.6.5.3
168 9.3.6.5.4
9.3.6.5.5
171 CHAPTER 10 – PRESTRESSED MASONRY
10.1 — General
10.1.1 Scope
10.1.2
10.1.3
10.1.4
10.1.5
172 10.1.6
10.2 — Design methods
10.2.1 General
10.2.2 After transfer
10.3 — Permissible stresses in prestressingtendons
10.3.1 Jacking force
10.3.2 Immediately after transfer
10.3.3 Post-tensioned masonry members
173 10.3.4 Effective prestress
174 10.4 — Axial compression and flexure
10.4.1 General
10.4.1.1
10.4.1.2
10.4.1.3
175 10.4.2 Service load requirements
10.4.2.1
10.4.2.2
176 10.4.3 Strength requirements
10.4.3.1
10.4.3.2
10.4.3.3
10.4.3.4
10.4.3.5
10.4.3.5.1
10.4.3.5.2
10.4.3.5.3
177 10.4.3.5.4
10.4.3.6
10.4.3.7 Calculation of fps for out-of-plane bending
10.4.3.7.1
10.4.3.7.2
10.4.3.7.3
10.4.3.8 Calculation of fps for shear walls
10.5 — Axial tension
10.6 — Shear
10.6.1
10.6.2
10.6.2.1
10.6.2.2
178 10.7 — Deflection
10.8 — Prestressing tendon anchorages, couplers, and end blocks
10.8.1
10.8.2
10.8.3
10.8.4
10.8.4.1
10.8.4.2
179 10.9 — Protection of prestressing tendons and accessories
10.9.1
10.9.2
10.9.3
10.10 — Development of bonded tendons
181 CHAPTER 11 – STRENGTH DESIGN OF AUTOCLAVED AERATED CONCRETE (AAC) MASONRY
11.1 — General
11.1.1 Scope
11.1.1.1
11.1.1.2
11.1.2 Required strength
11.1.3 Design strength
11.1.4 Strength of joints
182 11.1.5 Strength-reduction factors
11.1.5.1 Anchor bolts
11.1.5.2 Bearing
11.1.5.3 Combinations of flexure and axial load in unreinforced AAC masonry
11.1.5.4 Combinations of flexure and axial load in reinforced AAC masonry
11.1.5.5 Shear
11.1.6 Deformation requirements
11.1.6.1 Deflection of unreinforced (plain) AAC masonry
183 11.1.6.2 Deflection of reinforced AAC masonry
11.1.7 Anchor bolts
11.1.8 Material properties
11.1.8.1 Compressive strength
11.1.8.1.1 Masonry compressive strength
11.1.8.1.2 Grout compressive strength
11.1.8.2 Masonry splitting tensile strength
184 11.1.8.3 Masonry modulus of rupture
11.1.8.4 Masonry direct shear strength
11.1.8.5 Coefficient of friction
11.1.8.6 Reinforcement strength
11.1.9 Nominal bearing strength
11.1.9.1
11.1.9.2 Bearing for simply supported precast floor and roof members on AAC masonry shear walls
185 11.1.10 Corbels
186 11.2 — Unreinforced (plain) AAC masonry
11.2.1 Scope
11.2.1.1 Strength for resisting loads
11.2.1.2 Strength contribution from reinforcement
11.2.1.3 Design criteria
11.2.2 Flexural strength of unreinforced (plain) AAC masonry members
187 11.2.3 Nominal axial strength of unreinforced (plain) AAC masonry members
11.2.4 Axial tension
11.2.5 Nominal shear strength of unreinforced (plain) AAC masonry members
11.2.6 Flexural cracking
188 11.3 — Reinforced AAC masonry
11.3.1 Scope
11.3.2 Design assumptions
189 11.3.3 Reinforcement requirements and details
11.3.3.1 Reinforcing bar size limitations
11.3.3.2 Standard hooks
11.3.3.3 Development
11.3.3.3.1 Development of tension and compression reinforcement
11.3.3.3.2 Development of shear reinforcement
11.3.3.3.2.1
190 11.3.3.3.2.2
11.3.3.4 Splices
11.3.3.5 Maximum reinforcement percentages
11.3.3.6 Bundling of reinforcing bars
191 11.3.4 Design of beams, piers, and columns
11.3.4.1 Nominal strength
11.3.4.1.1 Nominal axial and flexural strength
11.3.4.1.2 Nominal shear strength
192 11.3.4.1.2.1 Nominal masonry shear strength as governed by web-shear cracking
11.3.4.1.2.2 Nominal shear strength as governed by crushing of diagonal compressive strut
11.3.4.1.2.3 Nominal shear strength provided by shear reinforcement
193 11.3.4.1.2.4
11.3.4.2 Beams
11.3.4.2.1
11.3.4.2.2 Longitudinal reinforcement
11.3.4.2.2.1
11.3.4.2.2.2
194 11.3.4.2.3 Transverse reinforcement
11.3.4.2.4 Construction
11.3.4.2.5 Dimensional limits
11.3.4.3 Piers
11.3.4.3.1
11.3.4.3.2 Longitudinal reinforcement
11.3.4.3.3 Dimensional limits
195 11.3.5 Wall design for out-of-plane loads
11.3.5.1 Scope
11.3.5.2 Maximum reinforcement
11.3.5.3 Nominal axial and flexural strength
11.3.5.4 Nominal shear strength
11.3.5.5 P-delta effects
11.3.5.5.1
11.3.5.5.2
196 11.3.5.5.3
11.3.5.5.4
11.3.5.5.5
197 11.3.5.5.6
11.3.5.6 Deflections
11.3.5.6.1
11.3.5.6.2
198 11.3.6 Wall design for in-plane loads
11.3.6.1 Scope
11.3.6.2 Reinforcement
11.3.6.3 Flexural and axial strength
11.3.6.4 Shear strength
11.3.6.5 Flexural cracking strength
11.3.6.6
11.3.6.6.1
11.3.6.6.2
199 11.3.6.6.3
11.3.6.6.4
201 PART 4: PRESCRIPTIVE DESIGN METHODS
CHAPTER 12 – VENEER
12.1 — General
12.1.1 Scope
203 12.1.1.1
12.1.1.2
12.1.1.3
12.1.2 Design of anchored veneer
205 12.1.3 Design of adhered veneer
12.1.4 Dimension stone
12.1.5 Autoclaved aerated concrete masonry veneer
12.1.6 General design requirements
12.1.6.1
12.1.6.2
12.1.6.3
206 12.2 — Anchored veneer
12.2.1 Alternative design of anchored masonry veneer
12.2.2 Prescriptive requirements for anchoredmasonry veneer
12.2.2.1
12.2.2.2
12.2.2.3 Vertical support of anchored masonryveneer
12.2.2.3.1
207 12.2.2.3.1.1
12.2.2.3.1.2
12.2.2.3.1.3
12.2.2.3.1.4
12.2.2.3.1.5
12.2.2.3.2
12.2.2.3.3
12.2.2.4 Masonry units
12.2.2.5 Anchor requirements
12.2.2.5.1 Corrugated sheet-metal anchors
12.2.2.5.1.1
208 12.2.2.5.1.2
12.2.2.5.2 Sheet-metal anchors
12.2.2.5.2.1
12.2.2.5.2.2
12.2.2.5.3 Wire anchors
12.2.2.5.3.1
12.2.2.5.3.2
12.2.2.5.4 Joint reinforcement
12.2.2.5.4.1
209 12.2.2.5.4.2
12.2.2.5.5 Adjustable anchors
12.2.2.5.5.1
12.2.2.5.5.2
12.2.2.5.5.3
12.2.2.5.5.4
12.2.2.5.5.5
12.2.2.5.6 Anchor spacing
12.2.2.5.6.1
12.2.2.5.6.2
12.2.2.5.6.3
12.2.2.5.6.4
12.2.2.5.7 Joint thickness for anchors
210 12.2.2.6 Masonry veneer anchored to wood backing
12.2.2.6.1
12.2.2.6.2
12.2.2.6.3
12.2.2.7 Masonry veneer anchored to steel backing
12.2.2.7.1
12.2.2.7.2
12.2.2.7.3
12.2.2.7.4
12.2.2.8 Masonry veneer anchored to masonry or concrete backing
12.2.2.8.1
12.2.2.8.2
12.2.2.9 Veneer not laid in running bond
211 12.2.2.10 Requirements in seismic areas
12.2.2.10.1 Seismic Design Category C
12.2.2.10.1.1
12.2.2.10.1.2
12.2.2.10.2 Seismic Design Category D
12.2.2.10.2.1
12.2.2.10.2.2
12.2.2.10.2.3
12.2.2.10.3 Seismic Design Categories E and F
12.2.2.10.3.1
12.2.2.10.3.2
12.2.2.11 Requirements in areas of high winds
212 12.3 — Adhered veneer
12.3.1 Alternative design of adhered masonry veneer
12.3.2 Prescriptive requirements for adhered masonry veneer
12.3.2.1 Unit sizes
12.3.2.2 Wall area limitations
12.3.2.3 Backing
213 12.3.2.4
215 CHAPTER 13 – GLASS UNIT MASONRY
13.1 — General
13.1.1 Scope
13.1.1.1
13.1.1.2
13.1.2 General design requirements
13.1.3 Units
13.1.3.1
13.1.3.2
13.1.3.3
13.2 — Panel size
216 13.2.1 Exterior standard-unit panels
217 13.2.2 Exterior thin-unit panels
13.2.3 Interior panels
13.2.3.1
13.2.3.2
218 13.2.4 Curved panels
13.3 — Support
13.3.1 General requirements
13.3.2 Vertical
13.3.2.1
13.3.2.2
13.3.2.3
13.3.3 Lateral
13.3.3.1
13.3.3.2
13.3.3.3
13.3.3.4
220 13.4 — Expansion joints
13.5 — Base surface treatment
13.6 — Mortar
13.7 — Reinforcement
221 CHAPTER 14 – MASONRY PARTITION WALLS
14.1 — General
14.1.1 Scope
14.1.2 Design of partition walls
14.2 — Prescriptive design of partition walls
14.2.1 General
14.2.1.1
14.2.1.2
14.2.2 Thickness Limitations
14.2.2.1 Minimum thickness
14.2.2.2 Maximum thickness
222 14.2.3 Limitations
14.2.3.1 Vertical loads
14.2.3.2 Lateral loads
14.2.3.3 Seismic Design Category
223 14.2.3.4 Nonparticipating Elements
14.2.3.5 Enclosed Buildings
14.2.3.6 Risk Category IV
14.2.3.7 Masonry not laid in running bond
14.2.3.8 Glass unit masonry
14.2.3.9 AAC masonry
14.2.3.10 Concrete masonry
14.2.3.11 Support
224 14.3 — Lateral support
14.3.1 Maximum l/t and h/t
14.3.2 Openings
226 14.3.3 Cantilever walls
14.3.4 Support elements
14.4 — Anchorage
14.4.1 General
14.4.2 Intersecting walls
14.4.2.1
14.4.2.2
14.4.2.3
14.5 — Miscellaneous requirements
14.5.1 Chases and recesses
14.5.2 Lintels
14.5.3 Lap splices
227 PART 5: APPENDICES
APPENDIX A – EMPIRICAL DESIGN OF MASONRY
A.1 — General
A.1.1 Scope
A.1.1.1
A.1.1.2
A.1.2 Limitations
A.1.2.1 Gravity Loads
A.1.2.2 Seismic
228 A.1.2.3 Wind
A.1.2.4 Buildings and other structures in Risk Category IV
A.1.2.5 Other horizontal loads
A.1.2.6 Glass unit masonry
A.1.2.7 AAC masonry
A.1.2.8 Concrete masonry
A.1.2.9 Support
A.1.2.10 Partition walls
231 A.2 — Height
A.3 — Lateral stability
A.3.1 Shear walls
A.3.1.1
A.3.1.2
A.3.2 Roofs
233 A.4 — Compressive stress requirements
A.4.1 Calculations
A.4.2 Allowable compressive stresses
236 A.5 — Lateral support
A.5.1 Maximum l/t and h/t
237 A.5.2 Cantilever walls
A.5.3 Support elements
A.6 — Thickness of masonry
A.6.1 General
A.6.2 Minimum thickness
A.6.2.1 Load-bearing walls
A.6.2.2 Rubble stone walls
238 A.6.2.3 Shear walls
A.6.2.4 Foundation walls
A.6.2.5 Foundation piers
A.6.2.6 Parapet walls
A.6.2.7 Partition walls
A.6.2.8 Change in thickness
A.6.3 Foundation walls
A.6.3.1
A.6.3.2
A.6.4 Foundation piers
239 A.7 — Bond
A.7.1 General
A.7.2 Bonding with masonry headers
A.7.2.1 Solid units
A.7.2.2 Hollow units
A.7.3 Bonding with wall ties or joint reinforcement
A.7.3.1
240 A.7.3.2
A.7.4 Natural or cast stone
A.7.4.1 Ashlar masonry
A.7.4.2 Rubble stone masonry
A.8 — Anchorage
A.8.1 General
A.8.2 Intersecting walls
A.8.2.1
A.8.2.2
A.8.2.3
A.8.2.4
242 A.8.3 Floor and roof anchorage
A.8.3.1
A.8.3.2
A.8.3.3
A.8.3.4
A.8.3.5
A.8.4 Walls adjoining structural framing
243 A.9 — Miscellaneous requirements
A.9.1 Chases and recesses
A.9.2 Lintels
245 APPENDIX B – DESIGN OF MASONRY INFILL
B.1 — General
B.1.1 Scope
246 B.1.2 Required strength
B.1.3 Design strength
B.1.4 Strength-reduction factors
B.1.5 Limitations
247 B.2 — Non- participating infills
B.2.1 In-plane isolation joints for non-participatinginfills
B.2.1.1
B.2.1.2
B.2.1.3
B.2.2 Design of non-participating infills for out-ofplane oads
B.2.2.1
B.2.2.2
B.2.2.3
B.2.2.4
B.2.2.5
248 B.3 — Participating infills
B.3.1 General
B.3.1.1
B.3.1.2
B.3.1.2.1
B.3.1.2.2
B.3.2 In-plane connection requirements for participating infills
249 B.3.3 Out-of-plane connection requirements for participating infills
B.3.3.1
B.3.3.2
B.3.3.3
B.3.4 Design of participating infills for in-plane forces
B.3.4.1
B.3.4.2
250 B.3.4.3
B.3.5 Design of frame elements with participatingin fills for in-plane loads
B.3.5.1
B.3.5.2
B.3.5.3
251 B.3.6 Design of participating infills for out-of-plane forces
253 APPENDIX C – LIMIT DESIGN METHOD
C. General
C.1 Yield mechanism
254 C.2 Mechanism strength
C.3 Mechanism deformation
C.3.1
C.3.2
C.3.3
255 EQUATION CONVERSIONS
267 CONVERSION OF INCH-POUND UNITS TO SI UNITS
PREFIXES
269 REFERENCES FOR THE CODE COMMENTARY
References, Chapter 1
References, Chapter 2
References, Chapter 4
270 References, Chapter 5
271 References, Chapter 6
References, Chapter 7
272 References, Chapter 8
275 References, Chapter 9
277 References, Chapter 10
278 References, Chapter 11
References, Chapter 12
279 References, Chapter 13
280 References, Appendix A
References, Appendix B
281 References, Appendix C
283 530.1-13 Specification for Masonry Structures
TABLE OF CONTENTS
285 SYNOPSIS
287 PREFACE
289 PART 1 — GENERAL
1.1 — Summary
1.1 A.
1.1 B.
1.1 C.
1.2 — Definitions
295 1.3 — Reference standards
300 1.4 — System description
1.4 A. Compressive strength requirements
1.4 B. Compressive strength determination
1. Methods for determination of compressive strength
301 2. Unit strength method
a. Clay masonry
303 b. Concrete masonry
306 c. AAC masonry
3. Prism test method
307 4. Testing prisms from constructed masonry
a. Prism sampling and removal
b. Compressive strength calculations
c. Compliance
1.4 C. Adhered veneer requirements
308 1.5 — Submittals
1.5 A.
1.5 B.
309 1.6 — Quality assurance
1.6 A. Testing Agency’s services and duties
313 1.6 B. Inspection Agency’s services and duties
1.6 C. Contractor’s services and duties
314 1.6 D. Sample panels
1.6 E. Grout demonstration panel
1.7 — Delivery, storage, and handling
1.7 A.
1.7 B.
1.7 C.
1.7 D.
1.7 E.
315 1.8 — Project conditions
1.8 A. Construction loads
1.8 B. Masonry protection
1.8 C. Cold weather construction
1. Do not lay glass unit masonry.
2. Preparation
316 3. Construction
317 4. Protection
318 1.8 D. Hot weather construction
1. Preparation
2. Construction
3. Protection
319 PART 2 — PRODUCTS
2.1 — Mortar materials
2.1 A.
321 2.1 B. Glass unit masonry
2.1 C. AAC masonry
322 2.2 — Grout materials
2.2 A.
2.2 B.
2.2 C.
323 2.3 — Masonry unit materials
2.3 A.
324 2.3 B.
325 2.3 C.
2.3 D.
326 2.3 E.
2.4 — Reinforcement, prestressing tendons, and metal accessories
2.4 A. Reinforcing bars
327 2.4 B. Prestressing tendons
2.4 C. Joint reinforcement
2.4 D. Anchors, ties, and accessories
328 2.4 E. Stainless steel
2.4 F. Coatings for corrosion protection
329 2.4 G. Corrosion protection for tendons
332 2.4 H. Prestressing anchorages, couplers, and end blocks
334 2.5 — Accessories
2.5 A.
2.5 B.
2.5 C. Asphalt emulsion
2.5 D. Masonry cleaner
2.5 E. Joint fillers
337 2.6 — Mixing
2.6 A. Mortar
338 2.6 B. Grout
339 2.6 C. Thin-bed mortar for AAC
2.7 — Fabrication
2.7 A. Reinforcement
340 2.7 B. Prefabricated masonry
341 PART 3 — EXECUTION
3.1 — Inspection
3.1 A.
3.1 B.
342 3.2 — Preparation
3.2 A.
3.2 B.
3.2 C. Wetting masonry units
3.2 D. Debris
3.2 E. Reinforcement
3.2 F. Cleanouts
343 3.3 — Masonry erection
3.3 A. Bond pattern
3.3 B. Placing mortar and units
347 3.3 C. Placing adhered veneer
3.3 D. Embedded items and accessories
348 3.3 E. Bracing of masonry
3.3 F. Site tolerances
350 3.4 — Reinforcement, tie, and anchor installation
3.4 A. Basic requirements
3.4 B. Reinforcement
356 3.4 C. Wall ties
357 3.4 D. Anchor bolts
358 3.4 E. Veneer anchors
359 3.4 F. Glass unit masonry panel anchors
3.5 — Grout placement
3.5 A. Placing time
3.5 B. Confinement
360 3.5 C. Grout pour height
361 3.5 D. Grout lift height
3.5 E. Consolidation
362 3.5 F. Grout key
3.5 G. Alternate grout placement
3.5 H. Grouting AAC masonry
363 3.6 — Prestressing tendon installation and stressing procedure
3.6 A. Site tolerances
3.6 B. Application and measurement of prestressing force
364 3.6 C. Grouting bonded tendons
3.6 D. Burning and welding operations
3.7 — Field quality control
3.7 A.
3.7 B.
3.8 — Cleaning
365 FOREWORD TO SPECIFICATION CHECKLISTS
366 MANDATORY REQUIREMENTS CHECKLIST
367 MANDATORY REQUIREMENTS CHECKLIST (Continued)
368 OPTIONAL REQUIREMENTS CHECKLIST
369 REFERENCES FOR THE SPECIFICATION COMMENTARY
References, Part 1
370 References, Part 2
371 References, Part 3
373 INDEX

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