Guide to the Code for Evaluation, Repair, and Rehabilitation of Concrete Buildings

Guide to the Code for Evaluation, Repair, and Rehabilitation of Concrete Buildings

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Description

This new guide provides guidance and assistance to professionals engaged in the repair of concrete buildings. The guide has been developed to serve as an invaluable companion to ACI 562-13. The new guide is separated into two main components: chapter guides that follow the organization of ACI 562, broken down by the corresponding sections and project examples that illustrate the use of the code for real world projects from inception through completion. These two components work together to provide additional information on how to apply the performance requirements in ACI 562 and how the requirements may be applied to a broad range of projects. Published jointly by ACI and ICRI.

Keywords: repair; loads; load combinations; strength reduction factors; evaluation; analysis; durability; quality assurance

 

Document Details

Author:

Publication Year: 2017

ISBN: 9781942727354

Categories: Codes, Repair

Formats: Printed Document, Protected PDF/Web View, or ePub

This document is Historical

Table of Contents

Chapter 1: General

Overview

1.1 Scope

Determination of Applicable Building Codes

Provisions for Seismic Resistance

LDP

1.2 Applicability

1.3 Jurisdictions without a general existing building code

Which ACI Code Governs?

1.4 Administration and enforcement

1.5 Responsibilities

1.6 Contract documents

1.7 Maintenance and monitoring

Chapter 2: Notation and Definitions

Overview

2.1 Notation

2.2 Definitions

Chapter 3: Referenced Standards

Overview

Chapter 4: Basis For Compliance

Overview

4.1 General

4.2 Compliance method

4.3 Preliminary evaluation

Useful References for Evaluating Existing Concrete Structures

Chapter 5: Loads, Load Combinations, and Strength Reduction Factors

Overview

5.1 General

5.2 Load factors and load combinations

5.3 Strength reduction factors for repair design

5.4 Strength reduction factors for evaluation

5.5 Load combinations for structures repaired with external reinforcing systems

Chapter 6: Evaluation and Analysis

Overview

6.1 Requirements for structural evaluation

6.2 Structural assessment

Is a Structural Evaluation Always Required?

Use of Lower Bound Default Material Properties

6.3 Material properties

Useful References for Performing Evaluations of Existing Concrete Structures

6.4 Test methods to determine or confirm material properties

Unique Analysis Considerations

Example 6.1—Methods for Determining Material Properties

6.5 Structural analysis of existing structures

6.6 Structural serviceability

6.7 Structural analysis for repair design

6.8 Strength evaluation by load testing

Chapter 7: Design of Structural Repairs

Overview

7.1 General

7.2 Strength and serviceability

7.3 Behavior of repaired systems

7.4 Bond

7.5 Materials

7.6 Design and detailing considerations

Existing materials, reinforcement detailing, deterioration, and repair considerations

Prestressed members and structures

Post-installed anchors and dowels

7.7 Repair using supplemental post-tensioning

7.8 Repair using fiber-reinforced polymer (FRP) composites

7.9 Performance under fire and elevated temperatures

Strengthening with External Post-tensioning

Chapter 8: Durability

Overview

8.1 General

8.2 Cover

8.3 Cracks

8.4 Corrosion

Useful References on the Causes, Evaluation, and Repair of Reinforcement Corrosion in Concrete Structures

8.5 Surface treatments and coatings

Chapter 9: Construction

Overview

9.1 Stability and temporary shoring requirements

Shoring due to Failure of Columns During Repair

9.2 Temporary conditions

9.3 Environmental issues

Chapter 10: Quality Assurance

Overview

10.1 Inspection

10.2 Testing of repair materials

10.3 Construction observations

Chapter 11: Commentary References

Overview

Project Examples

Chapter 12: Project Example #1-Typical Parking Garage Repair

Description of Structure

Project Initiation and Objectives

Governing Building Codes

Preliminary Evaluation

Existing site conditions

Design strength of existing structure

Findings of preliminary evaluation

Compliance method and design basis code

Structural Evaluation

Existing conditions

Structural analysis for repair design

Design of Structural Repairs and Durability

Slab area 1

Slab area 2 and columns

Slab soffit repairs

Contract Documents

Construction

Quality Assurance

Project Close-out

Periodic maintenance

Record documents

Chapter 13: Project Example #2-Typical Façade Repair

Description of Structure

Project Initiation and Objectives

Governing Building Codes

Preliminary Observations and Evaluation

Observed concrete conditions

Laboratory findings

Findings

Structural Evaluation and Repair Design

Shear wall reveal strip repairs

North and south walls away from reveal strips and east and west slab and column edges

Balcony repairs

Performance under fire and elevated temperatures

Contract Documents

Construction

Quality Assurance

Project Close-out

Periodic maintenance

Record documents

Chapter 14: Project Example #3-Adaptive Reuse of Historic Depot

Description of Structure

Project Initiation and Objectives

Governing Building Codes

Preliminary Observations and Evaluation

Concrete conditions

Material evaluation findings

Summary

Structural Evaluation

Requirement for structural evaluation

Existing properties

Structural analysis

Structural analysis findings

Recommended Repair Program

Train deck rehabilitation

Column rehabilitation

Concrete repair details

Contract Documents

Construction

Quality Assurance

Project Close-out

Periodic maintenance

Record documents

Chapter 15: Project Example #4-Parking/Plaza Slab Strengthening

Description of Structure

Project Initiation and Objectives

Governing Building Codes

Preliminary Evaluation

Document review

Existing site conditions

Strength of as-built structure

Compliance method and design basis code

Structural Evaluation

Requirement for structural evaluation

Structural assessment

Structural analysis

Strengthening Concepts

Strengthening concept 1

Strengthening concept 2

Evaluation of strengthening concepts

Structural Analysis for Repair Design

Design of Structural Repairs and Durability

Contract Documents

Construction

Quality Assurance

Load Test

Test procedure

Test results

Project Close-out

Periodic maintenance

Record documents

Chapter 16: Project Example #5-Precast/Prestressed Double-Tee Repair

Description of Structure

Project Initiation and Objectives

Governing Building Codes

Preliminary Evaluation

Existing site conditions

Design strength of existing structure

Findings of preliminary evaluation

Design basis code

Structural Evaluation

Existing site conditions

Structural analysis for evaluation

Structural safety

Repair/Replacement Options

Repair/Replacement Option 1

Repair/Replacement Option 2

Repair/Replacement Option 3

Repair/Replacement Option 4

Evaluation of Repair/Replacement Options

Design of Strengthening Repairs

Structural analysis for repair design

Design of strengthening repairs

Design of Structural Repairs and Durability

Development and bond of CFRP strips

Acceptance of CFRP repairs by the authorities having jurisdiction

Durability of repairs

Aesthetics of repairs

Contract Documents

Construction

Quality Assurance

Project Close-out

Periodic maintenance

Record documents

Appendix A—Referenced Standards and Reports

Appendix B—References

Appendix C—Compliance Methods in the 2012 IEBC and the 2012 IBC

Appendix D—Provision Coverage Matrix

ERRATA INFO

Any applicable errata are included with individual documents at the time of purchase. Errata are not included for collections or sets of documents such as the ACI Collection. For a listing of and access to all product errata, visit the Errata page.

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