• 主题
高级搜索  >
历史搜索 清空历史
  1. 当前位置：
  2. 首页 >
  3. 美国-美国材料与试验协会(US-ASTM) >
  4. ASTM C478/C478M-20

ASTM C478/C478M-20 Standard Specification for Circular Precast Reinforced Concrete Manhole Sections

ASTM C 1396-2006圆形预制钢筋混凝土人孔部分的标准规范

基本信息

标准号
ASTM C478/C478M-20
标准状态
历史
发布单位或类别
美国-美国材料与试验协会(US-ASTM);
发布日期
-
实施日期
-
废止日期
-
CCS分类
-
ICS分类
13.060.30 水质 - 污水

研制信息

起草单位
- 展开▼
起草人
-
归口单位
C13.06

摘要

1.1This specification covers the manufacture and purchase requirements of products used for the assembly and construction of circular vertical precast reinforced concrete manholes and structures used in sewer, drainage, and water works.1.2Part I, Sections1 –11, of this specification presents general requirements and requirements that are common to each precast concrete product covered by this specification.1.3Part II of this specification presents specific requirements for each manhole product in the following sections:ProductSectionGrade Rings12Flat Slab Tops13Risers and Conical Tops14Base Sections15Steps and Ladders16Note 1:Future products will be included in Part II in a future revision of this specification.1.4The values stated in either inch pound or SI units are to be regarded separately as standard. The SI units are shown in brackets. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard.Note 2:This specification is a manufacturing and purchase specification only and does not include requirements for backfill, or the relationship between field load conditions and the strength requirements of the manhole products and appurtenances. Experience has shown, however, that the successful performance of this product depends upon the proper selection of the product strength, type of foundation and backfill, and care in the field installation of the manhole products and connecting pipes. The owner of the project for which these products are specified herein is cautioned to require inspection at the construction site.1.5This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.1.6This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. 1.1本规范涵盖了用于装配和建造圆形垂直预制钢筋混凝土人孔和用于下水道、排水和供水工程的结构的产品的制造和采购要求。1.2第一部分，章节1 –11，提出了本规范涵盖的每个预制混凝土产品的通用要求和要求。1.3本规范第二部分在以下章节中介绍了每个人孔产品的具体要求:产品部分坡度环12平板顶部13立管和锥形顶部14基础部分15阶梯16注1:未来产品将包含在本规范未来版本的第二部分中。1.4以英寸-磅或国际单位制表示的数值应单独视为标准值。国际单位制显示在括号中。每个系统中规定的值可能不是精确的等效值；因此，每个系统应相互独立使用。将两个系统的值合并可能会导致不符合标准。注2:本规范仅为制造和采购规范，不包括回填要求，或现场荷载条件与人孔产品和附件强度要求之间的关系。然而，经验表明，该产品的成功性能取决于产品强度、基础和回填类型的正确选择，以及人孔产品和连接管的现场安装。此处规定了这些产品的项目业主应注意要求在施工现场进行检查。1.5本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户有责任在使用前制定适当的安全、健康和环境实践，并确定监管限制的适用性。1.6本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认标准化原则制定的。 展开▼

关联标准

代替如下标准
1.ASTM C478-19 Standard Specification for Circular Precast Reinforced Concrete Manhole Sections。
被如下标准代替
1. ASTM C478/C478M-22 Standard Specification for Circular Precast Reinforced Concrete Manhole Sections。

相似标准

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号