首页 馆藏资源 舆情信息 标准服务 科研活动 关于我们
现行 ASTM C857-19
到馆提醒
收藏跟踪
购买正版
Standard Practice for Minimum Structural Design Loading for Underground Precast Concrete Utility Structures 地下预制混凝土实用结构最小结构设计加载标准实践
发布日期: 2019-07-01
1.1 本规程描述了设计整体或分段预制混凝土公用设施结构时应用的最小活荷载和恒荷载。规范中涵盖的混凝土管、箱涵和材料 C478型 被排除在本惯例之外。 注1: 有关更多信息,请参阅AASHTO《公路桥梁标准规范》,第17版。 注2: 买方应注意,他必须将预期荷载条件和现场要求与使用的设计荷载适当关联。 1.2 以英寸-磅为单位的数值应视为标准值。括号中给出的值是到国际单位制的数学转换,仅供参考,不被视为标准值。 1.3 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。 1.4 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。 ====意义和用途====== 5.1 本规程旨在标准化地下预制混凝土公用设施结构的最小结构设计荷载。 5.2 用户应验证预期的现场条件和要求,设计荷载大于本标准中规定的荷载。
1.1 This practice describes the minimum live loads and dead loads to be applied when designing monolithic or sectional precast concrete utility structures. Concrete pipe, box culverts, and material covered in Specification C478 are excluded from this practice. Note 1: For additional information see AASHTO Standard Specification for Highway Bridges, Seventeenth Edition. Note 2: The purchaser is cautioned that he must properly correlate the anticipated loading conditions and the field requirements with the design loads used. 1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 1.3 This 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. 1.4 This 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. ====== Significance And Use ====== 5.1 This practice is intended to standardize the minimum structural design loading for underground precast concrete utility structures. 5.2 The user shall verify the anticipated field conditions and requirements with design loads greater than those specified in this standard.
分类信息
关联关系
研制信息
归口单位: C27.10
相似标准/计划/法规