DB43/T—2024 306643 湖 南 省 地 方 标 准ICS 93.040 CCS P 28 发 布 湖南省市场监督管理局2024-08发布-30 2024-11实施-30既有桥梁防船撞性能评估与提升设计标准 Design standard for performance evaluation and improvement of existing bridges under vessel collisions DB43/T 3066—2024 I 目 次 前言 ································ ································ ································ ························ Ⅲ 引言 ································ ································ ································ ·························· Ⅴ 1 范围 ································ ································ ································ ······················ 1 2 规范性引用文件 ································ ································ ································ ······· 1 3 术语和定义 ································ ································ ································ ············· 1 3.1 桥梁 ································ ································ ································ ··············· 1 3.2 桥梁防船撞 ································ ································ ································ ······ 1 4 基本规定 ································ ································ ································ ················ 3 4.1 一般规定 ································ ································ ································ ········· 3 4.2 设计目标及性能要求 ································ ································ ·························· 3 4.3 船撞作用基本要求 ································ ································ ····························· 4 4.4 作用组合 ································ ································ ································ ········· 5 4.5 评估方法与流程 ································ ································ ································ 5 5 调查观测 ································ ································ ································ ················ 6 5.1 通航调查 ································ ································ ································ ········· 6 5.2 桥梁调查 ································ ································ ································ ········· 8 6 船撞作用 ································ ································ ································ ················ 8 6.1 一般规定 ································ ································ ································ ········· 8 6.2 设防代表船舶 ································ ································ ································ ··· 8 6.3 碰撞情形 ································ ································ ································ ········ 11 6.4 撞击速度 ································ ································ ································ ········ 11 6.5 船撞荷载 ································ ································ ································ ········ 11 7 船撞分析与性能评估 ································ ································ ································ 12 7.1 一般规定 ································ ································ ································ ········ 12 7.2 船撞分析 ································ ································ ································ ········ 12 7.3 性能评估 ································ ································ ································ ········ 12 8 防船撞性能提升设计及措施 ································ ································ ······················· 15 8.1 一般规定 ································ ································ ································ ········ 15 8.2 基本原则与设计程序 ································ ································ ························· 15 8.3 碰撞预警措施 ································ ································ ································ ·· 15 8.4 结构性防船撞措施 ································ ··············