371R-16 Guide for Analysis, Design, & Construction of Elevated Concrete & Composite Steel-Concrete Water Storage Tanks

371R-16 Guide for Analysis, Design, & Construction of Elevated Concrete & Composite Steel-Concrete Water Storage Tanks

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Description

This guide presents recommendations for materials, analysis, design, and construction of concrete-pedestal elevated water storage tanks, including all-concrete and composite tanks. Composite tanks consist of a steel water storage vessel supported on a cylindrical reinforced concrete pedestal.

Concrete-pedestal elevated water storage tanks are structures that present special problems not encountered in typical environmental engineering concrete structures. This guide refers to ACI 350 for design and construction of those components of the pedestal tank in contact with the stored water, and to ACI 318 for design and construction of components not in contact with the stored water. Determination of snow, wind, and seismic loads based on ASCE/SEI 7 is included. These loads conform to the requirements of national building codes that use ASCE/SEI 7 as the basis for environmental loads as well as those of local building codes. Special requirements, based on successful experience, for the unique aspects of loads, analysis, design, and construction of concrete-pedestal tanks are presented.

Keywords: composite tanks; concrete-pedestal tanks; earthquake-resistant structures; elevated water tanks; formwork (construction).

 

Document Details

Author: ACI Committee 371

Publication Year: 2016

Pages: 41.00

ISBN: 9781945487002

Categories: Tanks

Formats: Printed Document, PDF, or Kindle

Table of Contents

CHAPTER 1—GENERAL

1.1—Introduction

1.2—Scope

1.3—Construction documents

1.4—Sample tank photos

CHAPTER 2—NOTATION AND DEFINITIONS

2.1—Notation

2.2—Definitions

CHAPTER 3—MATERIALS

3.1—Materials common to both composite and concrete tank types

3.2—Materials specific to composite tanks

3.3—Materials specific to concrete tanks

CHAPTER 4—DESIGN

4.1—General recommendations common to both composite and concrete tank types

4.2—Load recommendations common to both composite and concrete tank types

4.3—Design of components common to both composite and concrete tank types

4.4—Design of components specific to composite tanks

4.5—Design of components specific to all-concrete tanks

CHAPTER 5—CONSTRUCTION

5.1—Construction common to both composite and concrete tank types

5.2—Construction specific to composite tanks

5.3—Construction specific to concrete tanks

CHAPTER 6—GEOTECHNICAL RECOMMENDATIONS

6.1—General

6.2—Foundation depth

6.3—Settlement limits

6.4—Shallow foundations

6.5—Deep foundations

6.6—Seismic recommendations

6.7—Special considerations

CHAPTER 7—APPURTENANCES AND ACCESSORIES

7.1—General

7.2—Pedestal access

7.3—Ventilation

7.4—Tank access

7.5—Rigging devices for steel vessel

7.6—Above-ground piping

7.7—Below-ground piping

7.8—Interior floors within pedestal

7.9—Electrical and lighting

CHAPTER 8—REFERENCES

Authored references

APPENDIX A—GUIDE SUPPLEMENT

Preface

A.1—Factored design wind pressures

A.2––Composite steel concrete tank approximate period of vibration derivation

A.3—Pedestal: vertical load capacity derivation

ERRATA INFO

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