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本规范包括节段式混凝土桥梁设计与施工的准则。这些准则由一个美国公认的专家组所建议;专家组包括咨询工程师、承包者、院士、研究员,还有来自全美国各州公路机构和联邦政府机构的代表以及加拿大、法国、瑞士和西德的代表。本准则就性质上来说是全面的,并包含一些与前设计和施工规范有明显改变的新概念。它们是在对该类型桥梁使用性能的观察以及在美国和国外进行的最新研究的基础上订出的。本文献最初于1988年2月由后张预应力协会完成(在NCHRP项目20—7/32中),题为“节段式混凝土桥梁设计和施工规范”。随后经AASHTO桥梁和结构委员会公路分会研究并于1989年经过AASHTO部分投票程序,证明是一本指导性的规范。
This code includes the design and construction of segmental concrete bridges. These guidelines are proposed by a United States-recognized panel of experts including consulting engineers, contractors, academicians, fellows, representatives from highway agencies and federal government agencies throughout the United States, and representatives from Canada, France, Switzerland and West Germany . The Code is comprehensive in nature and includes some new concepts that have changed significantly from the previous design and construction practices. They are based on observations of the serviceability of this type of bridge and on the latest research conducted in the United States and abroad. This document was first completed in February 1988 by the Post-Tension Prestress Association (NCHRP Project 20-7 / 32) entitled “Design and Construction Specifications for Segmental Concrete Bridges”. Subsequent to the AASHTO Bridges and Structural Council Highway Branch and subsequent AASHTO Partial Voting Procedure in 1989, it proved to be an instructive norm.