ICS93.040 CCSP28 50 重庆市地方标准 DB50/T231—2024 代替DB50/ T231—2006 城市桥梁养护技术规程 2024-07-08发布 2024-10-08实施 重庆市市场监督管理局 发布DB50/T231—2024 I目次 前言.....................................................................................................................................................................III 1范围.....................................................................................................................................................................1 2规范性引用文件.................................................................................................................................................1 3术语、定义和符号.............................................................................................................................................1 术语和定义.................................................................................................................................................1 符号和缩略语.............................................................................................................................................3 4基本规定.............................................................................................................................................................3 5城市桥梁检查及技术状况评定.........................................................................................................................6 一般规定.....................................................................................................................................................6 经常性检查.................................................................................................................................................7 定期检测.....................................................................................................................................................7 特殊检测...................................................................................................................................................15 I类养护的城市桥梁技术状况评定.......................................................................................................16 II类～V类养护的城市桥梁技术状况评定..........................................................................................18 6下部结构养护...................................................................................................................................................24 支座...........................................................................................................................................................24 墩台...........................................................................................................................................................25 基础...........................................................................................................................................................27 7上部结构养护...................................................................................................................................................27 圬工结构...................................................................................................................................................27 钢筋混凝土及预应力混凝土结构...........................................................................................................27 钢结构.......................................................................................................................................................28 索结构.......................................................................................................................................................31 梁式桥.......................................................................................................................................................32 拱式桥.......................................................................................................................................................33 斜拉桥....................................................................