DB37 山 东 省 地 方 标 准 DB37/T 1728 -2010 预应力混凝土连续梁桥养护指南 Maintenance Guidelines for Prestressed Concrete Continuous Girder Bridge 2010-12 - 30 发布 2011- 01 - 01 实施 山东省质量技术监督局发布 山东省地方标准 预应力混凝土连续梁桥养护指南 Maintenance Guidelines for Prestressed Concrete Continuous Girder Bridge DB 37/T 1728-2010 主编单位：山东省交通运输厅 批准部门：山东省质量技术监督局 实施日期： 2011 年 01 月 01 日 人 民 交 通 出 版 社 前 言 为 进一步规范全省交通基础 设施建设和管理行为，全面提升建设管理水平 , 按 照 交 通 工 作实现“标准化、规 范化、集约化、人本化”管理的目标要求,山 东 省 交 通 运 输 厅提出并主持编制了本标准。 预 应力混凝土连续梁桥（包括连续刚构）在 60～300 米跨度范围与其他结 构 相 比 具 有 较高的结构性能和较低的建设费用与养护费用，故该桥型在我国应 用 广 泛 。 然 而由于早期设计理论的不完善和施工缺陷以及超载车辆的作用，修 建 于 上 世 纪 八、九十年代的大量该类桥梁在运营不足十年即出现了较严重的跨 中 下 挠 及 箱 梁开裂等病害，提前进入了维修加固期。同时，个别新建的连续梁 桥 由 于 养 护 技术力量薄弱，检测手段落后，缺乏对该类桥梁受力特点的了解和 预 防 性 养 护 理念，养护不及时、不到位，致使病害没有得到有效控制，通车数 年 后 即 衰 变 为三、四类桥梁。 为确保该类桥梁的承载力及耐久性，延长使用寿命，指导该类桥梁管理养 护 工 作 ， 山 东 省 交 通 规 划 设 计 院 在 系 统 总 结 山 东 省 该 类 桥 梁 养 护 及 维 修 加固 工 程 经 验 的 基 础上，借鉴国内多座 同类桥梁养护加固典型实例，联合编写了本标准。 本标准由山东省交通运输厅归口并提出。 本标准编写单位：山东省交通规划设计院 山东高速集团有限公司 青莱高速公路胶南管理处 本标准主要起草人： 胡吉利 王永敏 孟涛 王文涛 王志英 王胥 刘甲荣 王笃文 丁毅 各有关单位在标准使用过程中，若发现存在不当之处或有好的意见和建议，请及时 函告山东省交通规划设计院，以便修订时参考,联系地址：山东省济南市黄岗东路 5 号， 邮编 250031。 目 次 1 总则 ····································································································· 1 2 术语 ····································································································· 2 3.1 一般规定 ·························································································· 4 3.2 经常检查 ·························································································· 4 3.3 定期检查 ·························································································· 5 3.4 特殊检查 ·························································································· 6 3.5 承载能力检算 ···················································································· 8 3.6 荷载试验法鉴定承载能力 ····································································10 4 连续梁桥养护维修 ··················································································11 4.1 一般规定 ·························································································11 4.2 箱梁养护维修 ···················································································11 4.3 伸缩装置养护维修 ·············································································12 4.4 支座养护维修 ···················································································12 4.5 墩台养护维修 ···················································································12 4.6 基础养护维修 ···················································································12 5 连续梁桥加固 ························································································14 5.1 一般规定 ·························································································14 5.2 加固方法 ·························································································14 5.3 加固施工 ·························································································15 5.4 加固工程质量检验评定 ·······································································17 6 养护管理 ······························································································24 附录 A 承载能力检算方法用表·································································25 附录 B 基于荷载试验的承载能力检算系数··················································35 本指南用词说明 ························································································36 附件 《预应力混凝土连续梁桥养护指南》条文说明 ········································37 1 总则 1.0.1 为提高预应力混凝土连续梁桥、连续刚构桥（本指南统一简称连续梁桥）的养护 技术水平，保持结构的正常使用，保证桥梁运行安全，制定本指南。 1.0.2 本指南适用于悬浇施工的预应力混凝土连续梁公路桥，其他连续梁桥可参照使 用。 1.0.3 连续梁桥养护工作的主要内容和基本要求： （1）连续梁桥养护管理应贯彻“预防为主、防治结合”的原则，以桥面养护为中 心，以主要承重构件为重点，加强全面养护，提高结构安全性。 （2）采取有效的管理手段和技术措施，确保结构耐久性。 （3）认真执行桥梁检查、评定制度，应按检查、检测结果对桥梁技术状况进行分 类评定，并及时采取不同的养护措施。 1.0.4 应采用先进的检测技术，并积极推广应用经过验证的养护加固新技术、新材料、 新工艺。 1.0.5 连续梁桥的养护管理工作，除应满足本指南有关规定外，还应符合国家及行业颁 发的有关标准、规范的规定。 1 2 术语 2.0.1 养护 maintenance 为保持桥涵及其附属物的正常使用而进行的经常性保养及维修作业。 2.0.2 桥梁加固 strengthening of existing bridges 当桥梁原构件局部损坏或承载力不足时进行的修复和补强工程措施。 2.0.2 原构件 existing structure member 桥梁实施加固前的原有构件。 2.0.3 主要承重构件 main structure member 其自身失效将直接影响或危及桥梁结构安全的承重构件。 2.0.4 结构胶黏剂 structural adhesives 用于承重构件能长期承受外力和环境作用的胶黏剂。 2.0.5 纤维复合材料 fibre reinforced polymer 高强度的连续纤维按一定规则排列，经用胶黏剂浸渍、黏结固化后形成的具有纤维 增强效应的复合材料。 2.0.6 聚合物砂浆 polymer mortar 掺有改性环氧乳液或其他改性共聚物乳液的高强度水泥砂浆。 2.0.7 增大截面加固法 structure member strengthening with reinforced concrete.& prestressed concrete 通过增大