ACI PRC-357.3-25: Design and Construction of Waterfront and Coastal Concrete Marine Structures—Guide

Description

Waterfront and coastal concrete marine structures are exposed to severe environmental conditions for which concrete is ideally suited. These conditions include wind; waves, including seiches and tsunamis; ice and ship impact; abrasion and impact from floating debris; passing vessel effects; and seismic events. As many of these structures are pile-supported, the seismic loading can be critical and, therefore, a discussion of piles and their installation is included in this guide. Also provided are the measures that can be taken to minimize the undesirable effects of these environmental factors and reduce the potential for serious problems.

This guide also defines waterfront and coastal concrete marine structures, discusses materials that can be used to construct them, describes potential durability issues and how to mitigate them, and presents sustainability and serviceability requirements. Design loads, analysis techniques, design methodology, and construction considerations are also presented. Other topics include quality control (QC), above-water and below-water inspection of these structures, and repair of damaged structures. The materials, processes, QC measures, and inspections described in this guide should be tested, monitored, or performed as applicable only by qualified individuals holding the appropriate ACI certifications or equivalent.

Keywords:

construction procedures; durability; inspection; marine structures; materials; quality control; serviceability; structural analysis; structural design; sustainability.

Document Details

Author: ACI Committee 357

Publication Year: 2025

Pages: 46

ISBN: 9781641953313

Categories: Codes, Marine Concrete

Formats: Printed Document or Protected PDF/Web View

Table of Contents

CHAPTER 1—GENERAL, p. 2

1.1—Introduction, p. 2

1.2—Scope, p. 2

CHAPTER 2—NOTATION AND DEFINITIONS, p. 3

2.1––Notation, p. 3

2.2––Definitions, p. 3

CHAPTER 3—GENERAL TYPES AND STRUCTURAL CONFIGURATIONS OF CONCRETE MARINE STRUCTURES, p. 3

3.1—General definition, p. 3

3.2—Functional classification, p. 4

3.3—Layout and operational terminology, p. 4

3.4—Structural configurations, p. 4

3.5—Application of concrete in marine structures, p. 5

3.6—Concrete marine structures in contemporary design practice, p. 6

CHAPTER 4—MATERIALS, p. 6

4.1—General, p. 6

4.2—Cementitious materials, p. 6

4.3—Aggregates, p. 7

4.4—Water, p. 7

4.5—Chemical admixtures, p. 8

4.6—Concrete, p. 8

4.7—Fibers, p. 8

4.8—Deformed reinforcement, p. 9

4.9—Prestressing systems, p. 10

4.10—Prestressing anchorages, p. 11

4.11—Prestressing ducts, p. 11

4.12—Grout for bonded prestressing tendons, p. 12

CHAPTER 5—DURABILTY, p. 13

5.1—General, p. 13

5.2—Exposure zones, p. 13

5.3—Mechanisms of concrete deterioration in marine conditions, p. 13

5.4—Concrete mixture proportions considerations, p. 14

5.5—Protection against corrosion of reinforcement, p. 15

5.6—Abrasion resistance, p. 17

5.7—Service life prediction models, p. 17

CHAPTER 6—SUSTAINABILITY AND SERVICEABILITY REQUIREMENTS, p. 18

6.1—General, p. 18

6.2—Sustainability for waterfront and coastal concrete structures, p. 18

6.3—Marine environments and their demands on waterfront and coastal structures, p. 19

6.4—Serviceability requirements, p. 19

6.5—Component replacement, p. 19

CHAPTER 7—LOADS, ANALYSIS, AND DESIGN, p. 19

7.1—Requirements and design criteria, p. 19

7.2—General requirements for loads, p. 20

7.3—Dead loads, p. 20

7.4—Vertical live loads, p. 20

7.5—Horizontal loads, p. 20

7.6—Ice loads, p. 21

7.7—Thermal loads, p. 21

7.8—Deformation loads, p. 21

7.9—Seismic loads, p. 21

7.10—Load combinations, p. 22

7.11—Design concepts, p. 22

7.12—Analysis, p. 23

7.13—Design of members, p. 24

7.14—Member design for seismic loads, p. 25

7.15—Pile design, p. 25

7.16—Consideration of slope deformations, p. 26

CHAPTER 8—CONSTRUCTION CONSIDERATIONS, p. 26

8.1—General, p. 26

8.2—Environmental and physical constraints, p. 26

8.3—Local construction experience and practice, p. 26

8.4—Construction staging and access, p. 26

8.5—Construction methods, p. 27

CHAPTER 9—QUALITY CONTROL AND INSPECTION, p. 29

9.1—Introduction, p. 29

9.2—Fresh concrete quality control tests, p. 29

9.3—Hardened concrete quality control tests, p. 30

9.4—Inspection, p. 30

CHAPTER 10—REPAIR, p. 32

10.1—General, p. 32

10.2—Strength and durability, p. 33

10.3—Above-water repairs, p. 33

10.4—Below-water repairs, p. 34

CHAPTER 11—REFERENCES, p. 35

Authored references, p. 38

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