1、ANSI/AWWA D108-10 (First Edition) AWWA Standard Effective date: June 1, 2010. First edition approved by AWWA Board of Directors Jan. 17, 2010. Approved by American National Standards Institute April 20, 2010. 6666 West Quincy Avenue Advocacy Denver, CO 80235-3098 Communications T 800.926.7337 Confer
2、ences www.awwa.org Education and TrainingScience and TechnologySections The Authoritative Resource on Safe Water Aluminum Dome Roofs for Water Storage Facilities Copyright 2010 American Water Works Association. All Rights Reserved.ii AWWA Standard This document is an American Water Works Association
3、 (AWWA) standard. It is not a specification. AWWA standards describe minimum requirements and do not contain all of the engineering and administrative information normally contained in specifi- cations. The AWWA standards usually contain options that must be evaluated by the user of the standard. Un
4、til each optional feature is specified by the user, the product or service is not fully defined. AWWA publication of a standard does not constitute endorsement of any product or product type, nor does AWWA test, certify, or approve any product. The use of AWWA standards is entirely voluntary. This s
5、tandard does not supersede or take precedence over or displace any applicable law, regulation, or codes of any governmental authority. AWWA standards are intended to represent a consensus of the water supply industry that the product described will provide satisfactory service. When AWWA revises or
6、withdraws this standard, an official notice of action will be placed on the first page of the classified advertising section of Journal AWWA. The action becomes effective on the first day of the month following the month of Journal AWWA publication of the official notice. American National Standard
7、An American National Standard implies a consensus of those substantially concerned with its scope and provisions. An American National Standard is intended as a guide to aid the manufacturer, the consumer, and the general public. The ex- istence of an American National Standard does not in any respe
8、ct preclude anyone, whether that person has approved the standard or not, from manufacturing, marketing, purchasing, or using products, processes, or procedures not conforming to the standard. American National Standards are subject to periodic review, and users are cautioned to obtain the latest ed
9、itions. Producers of goods made in conformity with an American National Standard are encouraged to state on their own responsibility in advertising and promotional materials or on tags or labels that the goods are produced in conformity with particular American National Standards. Caution n oti Ce :
10、 The American National Standards Institute (ANSI) approval date on the front cover of this standard indicates completion of the ANSI approval process. This American National Standard may be revised or withdrawn at any time. ANSI procedures require that action be taken to reaffirm, revise, or withdra
11、w this standard no later than five years from the date of publication. Purchasers of American National Standards may receive current information on all standards by calling or writing the American National Standards Institute, 25 West 43rd Street, Fourth Floor, New York, NY 10036; (212) 642-4900, or
12、 e-mailing infoansi.org. All rights reserved. No part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information or retrieval system, except in the form of brief excerpts or quotations for review purp
13、oses, without the written permission of the publisher. Copyright 2010 by American Water Works Association Printed in USA Copyright 2010 American Water Works Association. All Rights Reserved.iii Committee Personnel The Standards Subcommittee on Aluminum Dome Roofs, which developed this standard, had
14、the following personnel at the time: G. Clark Margolf, Chair T.W. Bloomer II, DYK Incorporated, El Cajon, Calif. (AWWA) J.C. Ellrich, Mid Atlantic Storage Systems Inc., Washington Court House, Ohio (AWWA) G.C. Margolf, Temcor, Gardena, Calif. (AWWA) S.W. Meier, Tank Industry Consultants, Indianapoli
15、s, Ind. (AWWA) J. Staat, Conservatek Industries Inc., Conroe, Texas (AWWA) The AWWA Standards Committee on Steel Elevated Tanks, Standpipes, and Reservoirs, which reviewed and approved this standard, had the following personnel at the time of approval: Stephen W. Meier, Chair General Interest Member
16、s D.M. Algranti, Albert A. Webb Associates, Riverside, Calif. (AWWA) E. Darrimon, Bay Area Coating Consultant Service Inc., Denair, Calif. (AWWA) W.J. Dixon, Dixon Engineering Inc., Lake Odessa, Mich. (AWWA) F.S. Kurtz, *Standards Engineer Liaison, AWWA, Denver, Colo. (AWWA) S.W. Meier, Tank Industr
17、y Consultants, Indianapolis, Ind. (AWWA) J.W. Nollenberger, Centennial, Colo. (AWWA) B.M. Shepherd, *Standards Council Liaison, Claremont, Calif. (AWWA) J.I. Strand, Short Elliott Hendrickson Inc., Chippewa Falls, Wis. (AWWA) C.C. Sundberg, CH2M HILL, Issaquah, Wash. (AWWA) R.S. Wozniak, Bow Tech Lt
18、d., Batavia, Ill. (AWWA) Producer Members J.W. Davis, Tnemec Company, Kansas City, Mo. (AWWA) B.E. Kromer, Tank Builders Inc., Euless, Texas (AWWA) S. Lamb, Nickel Institute, Huntington, W.V. (AWWA) * Liaison, nonvoting Copyright 2010 American Water Works Association. All Rights Reserved.iv G.A. Lar
19、son, CB&I Inc., Clive, Iowa (AWWA) K. McGuire, Columbian TecTank Inc., Parsons, Kan. (AWWA) L.D. Scott, *CB&I Inc., San Luis Obispo, Calif. (AWWA) D.L. Stilger, Caldwell Tanks Inc., Louisville, Ky. (AWWA) User Members T.M. Dawson, Emerald Coast Utilities Authority, Pensacola, Fla. (AWWA) M.W. Griffi
20、n, Missouri American Water, St. Louis, Mo. (AWWA) C.P. Harder, City of Fort Worth, Fort Worth, Texas (AWWA) E.J. King, Connecticut Water Company, Clinton, Conn. (AWWA) J.L. Ortiz, San Francisco Public Utilities Commission, San Francisco, Calif. (AWWA) J.P. Scott, New JerseyAmerican Water Company, De
21、lran, N.J. (AWWA) D.T. Wagner, East Bay Municipal Utility District, Oakland, Calif. (AWWA) * Alternate Copyright 2010 American Water Works Association. All Rights Reserved.v Contents All AWWA standards follow the general format indicated subsequently. Some variations from this format may be found in
22、 a particular standard. Foreword I Introduction vii I.A Background .vii I.B History vii I.C Acceptance vii II Special Issues viii III Use of This Standard ix III.A Purchaser Options and Alternatives ix III.B Information to Be Provided With Bid .x III.C Modification to Standard x IV Major Revisions .
23、x V Comments x Standard 1 General 1.1 Scope 1 1.2 Description .1 1.3 Design Requirements 2 2 References 2 3 Definitions .3 4 Materials 4.1 General .3 4.2 Structural Frame .4 4.3 Roof Panels .4 4.4 Bolts and Fasteners 4 4.5 Sealant and Gasket Material 4 4.6 Skylight Panels 4 5 Design 5.1 Drawings .5
24、5.2 Principles of Design .5 5.3 Design Loads 5 5.4 Allowable Stresses and Allowable Loads 6 5.5 Equivalent Metric Equations .7 6 Roof Attachment Details 6.1 Roof Supports .8 6.2 Separation of Carbon Steel and Aluminum 8 6.3 Separation of Concrete and Aluminum 8 7 Physical Characteristics 7.1 Roof Ac
25、cessories 8 7.2 Skylights .8 8 Testing and Sealing 8.1 Leak Testing 8 8.2 Shell Seal .9 9 Fabrication and Erection 9.1 Fabrication 9 9.2 Welding 9 SEC. PAGE SEC. PAGE Copyright 2010 American Water Works Association. All Rights Reserved.vi 9.3 Shipping and Handling .9 9.4 Quality of Work 10 9.5 Maint
26、enance and Inspection .10 10 Coatings or Other Finishes .10 11 Affidavit of Compliance 10 Table 1 Bolts and Fasteners 7 SEC. PAGE SEC. PAGE Copyright 2010 American Water Works Association. All Rights Reserved.vii Foreword This foreword is for information only and is not a part of ANSI */AWWA D108. I
27、. Introduction. I.A. Background. In 1982, members of the American Water Works Association (AWWA) became aware of the increased usage of aluminum domes as roofs on water storage tanks and reservoirs. As a result of this, it was decided to incorporate a reference to aluminum domes in the AWWA standard
28、s. I.B. History. In 1987, Appendix A, Aluminum Dome Roofs for Water-Storage Tanks, became a part of D103-87, AWWA Standard for Factory Coated Bolted Steel Tanks for Water Storage. In 1996, Section 15, Structurally Supported Aluminum Dome Roofs, was incorpo- rated into D100-96, AWWA Standard for Weld
29、ed Steel Tanks for Water Storage Tanks. In 1997, Aluminum Dome Roofs left appendix status and became Section 13, Struc- turally Supported Aluminum Dome Roofs, in D103-97, with revisions similar to those in D100-96. In 2005, D100-05 was issued, incorporating revisions to Section 15, Structurally Supp
30、orted Aluminum Dome Roofs. In 2009, the AWWA Standards Committee on Steel Elevated Tanks, Standpipes, and Reservoirs, as part of an initiative to reorganize the AWWA standards under its umbrella, developed a separate standard for aluminum dome roofs that would be applicable to all tanks. That standa
31、rd is now designated D108, AWWA Standard for Aluminum Dome Roofs for Water Storage Facilities, and was approved by the AWWA Board of Directors on Jan. 17, 2010. I.C. Acceptance. In May 1985, the US Environmental Protection Agency (USEPA) entered into a cooperative agreement with a consortium led by
32、NSF International (NSF) to develop voluntary third-party consensus standards and a certification program for direct and indirect drinking water additives. Other members of the original consortium included the American Water Works Association Research Foundation (AwwaRF, now Water Research Foundation
33、) and the Conference of State Health and Environmental Managers (COSHEM). The American Water Works Association (AWWA) and the Association of State Drinking Water Administrators (ASDWA) joined later. * American National Standards Institute, 25 West 43rd Street, Fourth Floor, New York, NY 10036. Copyr
34、ight 2010 American Water Works Association. All Rights Reserved.viii In the United States, authority to regulate products for use in, or in contact with, drinking water rests with individual states. *Local agencies may choose to impose require- ments more stringent than those required by the state.
35、To evaluate the health effects of products and drinking water additives from such products, state and local agencies may use various references, including 1. An advisory program formerly administered by USEPA, Office of Drinking Water, discontinued on Apr. 7, 1990. 2. Specific policies of the state
36、or local agency. 3. Two standards developed under the direction of NSF , NSF/ANSI 60, Drinking Water Treatment ChemicalsHealth Effects, and NSF/ANSI 61, Drinking Water System ComponentsHealth Effects. 4. Other references, including AWWA standards, Food Chemicals Codex, Water Chemicals Codex, and oth
37、er standards considered appropriate by the state or local agency. Various certification organizations may be involved in certifying products in accor- dance with NSF/ANSI 61. Individual states or local agencies have authority to accept or accredit certification organizations within their jurisdictio
38、n. Accreditation of certification organizations may vary from jurisdiction to jurisdiction. Annex A, “Toxicology Review and Evaluation Procedures,” to NSF/ANSI 61 does not stipulate a maximum allowable level (MAL) of a contaminant for substances not regulated by a USEPA final maximum contaminant lev
39、el (MCL). The MALs of an unspecified list of “unregulated contaminants” are based on toxicity testing guidelines (noncarcinogens) and risk characterization methodology (carcinogens). Use of Annex A procedures may not always be identical, depending on the certifier. ANSI/AWWA D108 does not address ad
40、ditives requirements. Users of this standard should consult the appropriate state or local agency having jurisdiction in order to 1. Determine additives requirements, including applicable standards. 2. Determine the status of certifications by parties offering to certify products for contact with, o
41、r treatment of, drinking water. 3. Determine current information on product certification. II. Special Issues. This standard has no applicable information for this section. * Persons outside the United States should contact the appropriate authority having jurisdiction. NSF International, 789 N. Dix
42、boro Road, Ann Arbor, MI 48105. Both publications available from National Academy of Sciences, 500 Fifth Street, NW, Washington, DC 20001. Copyright 2010 American Water Works Association. All Rights Reserved.ix III. Use of This Standard. It is the responsibility of the user of an AWWA standard to de
43、termine that the products described in that standard are suitable for use in the particular application being considered. Contractual responsibilities for items such as design, material, fabrication, construc- tion, inspection, and testing are not included in this standard and must be addressed by t
44、he purchaser. This standard is based on the accumulated knowledge and experience of purchasers and manufacturers of aluminum dome roofs. Many aluminum domes built almost 40 years ago are still in service. Properly oper- ated and maintained aluminum dome roofs can have a very long service life. The t
45、erm tanks where used in this standard shall apply to welded steel tanks, bolted steel tanks, and concrete tanks or reservoirs. III.A. Purchaser Options and Alternatives. Proper use of this standard requires that the purchaser specify certain basic requirements. The purchaser may desire to modify, de
46、lete, or amplify sections of this standard to suit special conditions. It is strongly recommended that modifications, deletions, or amplifications be made by supplementing this standard. This standard is not intended to cover aluminum dome roofs that are to be erected in areas subject to regulations
47、 that are more stringent than the requirements contained herein. In such cases, local regulations supersede the requirements of this standard. Where local, municipal, county, or state government requirements exist, such requirements are to govern, and this standard should be interpreted to supplemen
48、t them. It is the purchasers responsibility to supplement or modify this standard for compliance with these local requirements. In addition, the purchaser is to provide clarification of the governing codes where they do not clearly refer to roofs, but where the purchaser intends such stipulations to
49、 apply to the tank roof under contract. As an example, if a governing code stipulates a building roof snow load of 40 lb/ft 2(1,915 N/m 2 ) and it is intended that the tank roof be designed for this load, the purchaser is to include this as a clarification. The details of design and construction covered by this standard are minimum require- ments. At a minimum, it is important that all of the design conditions in this standard be met. An aluminum dome roof cannot be represented as an ANSI/AWWA D108 roof if it does not meet the minimum requirements of this standar
