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ACI 350 2020 SI

ACI 350 2020 SI

$121.88

ACI CODE-350-20: Code Requirements for Environmental Engineering Concrete Structures (ACI 350-20) and Commentary (ACI 350R-20) – SI

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ACI 2020
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The Code Requirements for Environmental Engineering Concrete Structures (Code) portion of this document covers the structural design, materials selection, and construction of environmental engineering concrete structures. Such structures are used for conveying, storing, or treating water and wastewater, other liquids, and solid waste. The term solid waste as used in the Code encompasses the heterogeneous mass of disposed-of materials, as well as more homogeneous agricultural, industrial, and mineral wastes. The Code also covers the evaluation of existing environmental engineering concrete structures. Environmental engineering concrete structures are subject to uniquely different loadings and severe exposure conditions that require more restrictive serviceability requirements and may provide longer service lives than non-environmental structures. Loadings include normal dead and live loads, earth pressure loads, hydrostatic and hydrodynamic loads, and vibrating equipment loads. Exposures include concentrated chemicals, alternate wetting and drying, high-velocity flowing liquids, and freezing and thawing of saturated concrete. Serviceability requirements include liquid-tightness, gas-tightness, and durability. Proper design, materials, and construction of environmental engineering concrete structures are required to produce serviceable concrete that is dense, durable, nearly impermeable, and resistant to relevant chemicals, with limited deflections and cracking. This includes minimizing leakage and control over the infiltration of, or contamination to, the environment or groundwater. The Code presents additional material as well as modified portions of the ACI 318-05, ACI 318-08, and ACI 318-11 building codes that are applicable to environmental engineering concrete structures. The Commentary discusses some of the considerations of the committee in developing the ACI 350 Code, and its relationship with ACI 318. Emphasis is given to the explanation of provisions that may be unfamiliar to some users of the Code. References to much of the research data referred to in preparing the Code are given for those who wish to study certain requirements in greater detail. The chapter and section numbering of the Code are followed throughout the Commentary. Among the subjects covered are: drawings and specifications, inspections, materials, concrete quality, mixing and placing, forming, embedded pipes, joints, reinforcement details, analysis and design, strength and serviceability, flexural and axial loads, shear and torsion, development of reinforcement, slab systems, walls, footings, precast concrete, prestressed concrete, shell structures, folded plate members, provisions for seismic design, and an alternate design method in Appendix A. The quality and testing of materials used in the construction are covered by reference to the appropriate standard specifications. Welding of reinforcement is covered by reference to the appropriate AWS standard. Criteria for liquid-tightness and gas-tightness testing may be found in ACI 350.1. Keywords: chemical attack; coatings; concrete durability; concrete finishing (fresh concrete); concrete slabs, crack width and spacing; cracking (fracturing); environmental engineering; hydraulic structures; inspection; joints (junctions); joint sealers; liners; liquid; patching; permeability; pipe columns; pipes (tubes); prestressed concrete; prestressing steels; protective coatings; reservoirs; roofs; serviceability; sewerage; solid waste facilities; tanks (containers); temperature; torque; torsion; vibration; volume change; walls; wastewater treatment; water; water-cementitious materials ratio; water supply; water treatment.

PDF Catalog

PDF Pages PDF Title
3 TITLE PAGE
4 PREFACE
5 INTRODUCTION
GENERAL COMMENTARY
16 1.2—Contract documents
18 1.3—Inspection
20 1.4—Approval of special systems of design or construction
21 2.1—Code notation
40 2.2—Definitions
103 5.3—Proportioning concrete on the basis of field experience or trial mixtures, or both
108 5.4—Proportioning shotcrete on the basis of field experience or trial mixtures, or both
112 5.5—Average compressive strength reduction for concrete
113 5.6—Average compressive strength reduction for shotcrete
5.7—Evaluation and acceptance of concrete and shotcrete
119 5.8—Preparation of equipment and place of deposit
120 5.9—Mixing
121 5.10—Conveying concrete and wet-mix shotcrete
5.11—Depositing of concrete
122 5.12—Application of shotcrete
5.13—Curing
124 5.14—Cold weather requirements
5.15—Hot weather requirements
125 Chapter 6—formwork and embedments
6.1—Design of formwork
6.2—Removal of forms, shores, and reshoring
127 6.3—Embedments in concrete and shotcrete
129 Chapter 7—joints
7.1—Jointing
134 7.2—Construction joints
135 7.3—Crack-inducing joints
136 7.4—Movement joints
137 7.5—Joint accessories
143 Chapter 8—analysis and design – general considerations
8.1—Design methods
8.2—Loading
144 8.3—Methods of analysis
145 8.4—Redistribution of moments in continuous flexural members
147 8.5—Modulus of elasticity
8.6—Lightweight concrete
148 8.7—Stiffness
8.8—Effective stiffness to determine lateral deflections
149 8.9—Span length
150 8.10—Columns
8.11—Arrangement of live load
151 8.12—T-beam construction
8.13—Joist construction
152 8.14—Separate floor finish
153 Chapter 9—strength and serviceability requirements
9.1—General
9.2—Required strength
157 9.3—Design strength
161 9.4—Design strength for reinforcement
9.5—Control of deflections
169 Chapter 10—flexure and axial loads
10.1—Scope
10.2—Design assumptions
171 10.3—General principles and requirements
173 10.4—Distance between lateral supports of flexural members
174 10.5—Minimum reinforcement of flexural members
10.6—Distribution of flexural reinforcement
178 10.7—Deep beams
179 10.8—Design dimensions for compression members
10.9—Limits for reinforcement of compression members
181 10.10—Slenderness effects in compression members
188 10.11—Axially loaded members supporting slab system
10.12—Transmission of column loads through floor system
189 10.13—Composite compression members
191 10.14—Bearing strength
193 Chapter 11—shear and torsion
11.1—Shear strength
196 11.2—Shear strength provided by concrete for nonprestressed members
198 11.3—Shear strength provided by concrete for prestressed members
201 11.4—Shear strength provided by shear reinforcement
206 11.5—Design for torsion
216 11.6—Shear-friction
220 11.7—Deep beams
11.8—Provisions for brackets and corbels
224 11.9—Provisions for walls
226 11.10—Transfer of moments to columns
11.11—Provisions for slabs and footings
239 CHAPTER 12—REINFORCEMENT—DETAILS, DEVELOPMENT, AND SPLICES
12.1—Standard hooks
12.2—Minimum bend diameters
240 12.3—Bending
12.4—Surface conditions of reinforcement
241 12.5—Placing reinforcement
242 12.6—Spacing limits for reinforcement
243 12.7—Concrete protection for reinforcement
248 12.8—Development
268 12.9—Splices
276 12.10—Lateral reinforcement
280 12.11—Reinforcement details for columns
12.12—Connections
281 12.13—Shrinkage and temperature reinforcement
288 12.14—Requirements for structural integrity
291 CHAPTER 13—earthquake-resistant StructureS
13.1—General requirements
298 13.2—Ordinary moment frames
13.3—Intermediate moment frames
304 13.4—Intermediate precast structural walls
13.4—Intermediate precast structural walls
13.5—Flexural members of special moment frames
311 13.6—Special moment frame members subjected to bending and axial load
315 13.7—Joints of special moment frames
318 13.8—Special moment frames constructed using precast concrete
320 13.9—Special structural walls and coupling beams
329 13.10—Special structural walls constructed using precast concrete
13.11—Structural diaphragms and trusses
334 13.12—Foundations
336 13.13—Members not designated as part of the seismic-force-resisting system
339 CHAPTER 14—TWO-WAY SLAB SYSTEMS
14.1—Scope
340 14.2—General
14.3—Slab reinforcement
344 14.4—Openings in slab systems
345 14.5—Design procedures
348 14.6—Direct design method
354 14.7—Equivalent frame method
359 CHAPTER 15—WALLS
15.1—Scope
15.2—General
15.3—Walls prestressed circumferentially by wrapping with high-strength steel wire or strand
362 15.4—Minimum reinforcement
363 15.5—Walls designed as compression members
15.6—Empirical Design Method
365 15.7—Minimum wall thickness
15.8—Walls as grade beams
367 CHAPTER 16—FOOTINGS
16.1—Scope
16.2—Loads and reactions
368 16.3—Footings supporting circular or regular polygon-shaped columns or pedestals
16.4—Moment in footings
16.5—Shear in footings
370 16.6—Development of reinforcement in footings
16.7—Minimum footing depth
16.8—Transfer of force at base of column, wall, or reinforced pedestal
372 16.9—Sloped or stepped footings
16.10—Combined footings and mats
375 CHAPTER 17—PRECAST CONCRETE
17.1—Scope
17.2—General
376 17.3—Distribution of forces among members
377 17.4—Member design
17.5—Structural integrity
379 17.6—Connection and bearing design
381 17.7—Items embedded after concrete placement
17.8—Marking and identification
17.9—Handling
382 17.10—Strength evaluation of precast construction
383 CHAPTER 18—COMPOSITE CONCRETE FLEXURAL MEMBERS
18.1—Scope
18.2—General
384 18.3—Shoring
18.4—Vertical shear strength
18.5—Horizontal shear strength
385 18.6—Ties for horizontal shear
387 CHAPTER 19—PRESTRESSED CONCRETE
19.1—Scope
388 19.2—General
389 19.3—Design assumptions
391 19.4—Serviceability requirements—flexural members
394 19.5—Permissible stresses in prestressing steel
19.6—Loss of prestress
396 19.7—Flexural strength
397 19.8—Limits for reinforcement of flexural members
398 19.9—Minimum bonded reinforcement
400 19.10—Statically indeterminate structures
401 19.11—Compression members—combined flexure and axial loads
403 19.12—Slab systems
405 19.13—Post-tensioned tendon anchorage zones
410 19.14—Design of anchorage zones for monostrand or single 16 mm diameter bar tendons
411 19.15—Design of anchorage zones for multistrand tendons
412 19.16—Corrosion protection for unbonded single-strand prestressing tendons
414 19.17—Post-tensioning ducts
19.18—Grout for bonded tendons
416 19.19—Protection for prestressing steel
19.20—Application and measurement of prestressing force
417 19.21—Post-tensioning anchorages and couplers
418 19.22—External post-tensioning
419 CHAPTER 20—SHELLS AND FOLDED PLATE MEMBERS
20.1—Scope and definitions
421 20.2—Analysis and design
426 20.3—Design strength of materials
20.4—Shell reinforcement
428 20.5—Construction
429 CHAPTER 21—LIQUID-CONTAINING GROUND-SUPPORTED SLABS
21.1—Scope
430 21.2—Slab support
431 21.3—Slab thickness
432 21.4—Reinforcement
21.5—Joints
433 21.6—Hydrostatic uplift
21.7—Curing
435 CHAPTER 22—STRENGTH EVALUATION AND CONDITION ASSESSMENT OF STRUCTURES
22.1—General
437 22.2—Determination of required dimensions and material properties
438 22.3—Condition survey of structures
439 22.4—Field and laboratory testing
440 22.5—Tightness testing
22.6—Evaluation report

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ACI 350 2020 SI
$121.88