AWWA-C301-2007.pdf
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1、ANSI/AWWA C301-07 (Revision of ANSI/AWWA C301-99) AWWA Standard Effective date: June 1, 2007. First edition approved by AWWA Board of Directors Nov. 21, 1949. This edition approved Jan. 21, 2007. Approved by American National Standards Institute Jan. 11, 2007. Prestressed Concrete Pressure Pipe, Ste
2、el-Cylinder Type 6666 West Quincy Avenue Denver, CO 80235-3098 T 800.926.7337 www.awwa.org Advocacy Communications Conferences Education and Training ?Science and Technology Sections SM The Authoritative Resource on Safe Water -,-,- ii AWWA Standard This document is an American Water Works Associati
3、on (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 specifications. 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. AWWA s
5、tandards are intended to represent a consensus of the water supply industry that the product described will provide satisfactory service. When AWWA revises or withdraws this standard, an official notice of action will be placed on the first page of the classified advertising section of Journal AWWA.
6、 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 An American National Standard implies a consensus of those substantially concerned with its scope and provisions. An American National Standa
7、rd is intended as a guide to aid the manufacturer, the consumer, and the general public. The existence of an American National Standard does not in any respect preclude anyone, whether that person has approved the standard or not, from manufacturing, marketing, purchasing, or using products, process
8、es, or procedures not conforming to the standard. American National Standards are subject to periodic review, and users are cautioned to obtain the latest editions. Producers of goods made in conformity with an American National Standard are encouraged to state on their own responsibility in adverti
9、sing and promotional materials or on tags or labels that the goods are produced in conformity with particular American National Standards. CAUTION NOTICE:The American National Standards Institute (ANSI) approval date on the front cover of this standard indicates completion of the ANSI approval proce
10、ss. This American National Standard may be revised or withdrawn at any time. ANSI procedures require that action be taken to reaffirm, revise, or withdraw this standard no later than five years from the date of publication. Purchasers of American National Standards may receive current information on
11、 all standards by calling or writing the American National Standards Institute, 25 West 43rd Street, Fourth Floor, New York, NY 10036; (212) 642-4900. Science and Technology AWWA unites the entire water community by developing and distributing authoritative scientific and technological knowledge. Th
12、rough its members, AWWA develops industry standards for products and processes that advance public health and safety. AWWA also provides quality improvement programs for water and wastewater utilities. All rights reserved. No part of this publication may be reproduced or transmitted in any form or b
13、y 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 purposes, without the written permission of the publisher. Copyright 2007 by American Water Works Association Printed in USA -,
14、-,- iii Committee Personnel The AWWA standards subcommittee that revised this standard had the following personnel at the time of approval: Michael M. Hicks, Chair General Interest M.M. Hicks, MWH Americas Inc., Walnut Creek, Calif. (AWWA) A.E. Romer, Boyle Engineering Corporation, Newport Beach, Ca
15、lif. (AWWA) C.C. Sundberg, CH2M Hill, Issaquah, Wash. (AWWA) M.S. Zarghamee, Simpson Gumpertz and (2) the embedded-cylinder type, with a core composed of a steel cylinder encased in concrete and subsequently wire-wrapped on the exterior concrete surface and coated with cement mortar. The lined-cylin
16、der type, which was first used in the United States in 1942, is provided in sizes from 16 in. (410 mm) to 60 in. (1,520 mm). The embedded-cylinder type, which was developed later and first installed in 1953, is most commonly manufactured in sizes 48 in. (1,220 mm) and larger. Both types are designed
17、 for the specific combination of internal pressure and external load required for the project in accordance with the procedures outlined in ANSI/AWWA C304, Standard for Design of Prestressed Concrete Cylinder Pipe. Prestressed concrete steel-cylinder pipe is used for transmission mains, distribu- ti
18、on feeder mains, pressure siphons (including river crossings), penstocks, industrial pressure lines, water intake lines, and other applications. In the manufacture of lined-cylinder pipe, the first step is to fabricate and hydrostatically test the steel cylinder with joint rings attached. The cylind
19、er is then lined with concrete to form the core. The concrete is placed either centrifugally, by vertical casting, or by a radial compaction method. The concrete lining is cured and high-tensile wire is wrapped around the core directly on the steel cylinder. For a selected wire size, the tension and
20、 spacing of the wire are controlled to produce a predetermined residual compression in the core to meet design requirements. The wrapped core is then covered with a dense premixed mortar coating applied by a mechanical impact method. In the manufacture of embedded-cylinder pipe, the cylinder and joi
21、nt rings are constructed and tested in the same manner as lined-cylinder pipe. The cylinder is encased in concrete by vertical casting and mechanical vibration to constitute the core. After curing, the wire reinforcement is wound under tension in one or more layers around the outside of the concrete
22、 core containing the cylinder, instead of -,-,- viii directly on the cylinder. The exterior coating of premixed mortar is placed by impaction. Installation of this pipe is described in AWWA Manual M9, Concrete Pressure Pipe. I.B.History.The first edition of this standard was approved as tentative on
23、 Nov. 21, 1949. It was revised and made standard June 13, 1952. The second edition was approved as tentative June 17, 1955, and made standard June 26, 1958. Substantial changes, including the addition of combined loading procedures, were included in the third edition, which was made standard Jan. 27
24、, 1964. The standard was revised again on Jan. 31, 1972; June 24, 1979; Jan. 30, 1984; June 22, 1992; and Jan. 24, 1999. This edition was approved by the AWWA Board of Directors on Jan. 21, 2007. I.C.Acceptance.In May 1985, the US Environmental Protection Agency (USEPA) entered into a cooperative ag
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