ISO 21725-1:2021 预应力混凝土桥梁的简化设计 第1部分：工字梁桥

标准编号：ISO 21725-1:2021

中文名称：预应力混凝土桥梁的简化设计 第1部分：工字梁桥

英文名称：Simplified design of prestressed concrete bridges — Part 1: I-girder bridges

发布日期：2021-11

标准范围

本文件提供了符合6.1中规定限制条件的道路预应力混凝土工字梁桥的设计信息。本文件中规定的设计规则是对更详细要求的简化。新公路桥梁的设计和细节通过考虑以下因素来解决结构完整性问题:-？使用连续性和冗余来提供一条或多条备用路径；-？抗损坏或不稳定的结构构件和轴承座宽度；和-？外部保护系统，以尽量减少合理设想的严重负载的影响。

This document provides information to perform the design of the prestressed concrete I-girder bridge for road that complies with the limitations established in 6.1. The rules of design set forth in this document are simplifications of more elaborate requirements.Designs and details for new road bridges address structural integrity by considering the following:—    the use of continuity and redundancy to provide one or more alternate paths;—    structural members and bearing seat widths that are resistant to damage or instability; and—    external protection systems to minimize the effects of reasonably conceived severe loads.

标准预览图