公路桥梁伸缩装置技术状况评定标准

　 公路桥梁伸缩装置技术状况评定标准

　Assessment standard of technical conditions for expansion and contraction installations for highway bridge

　AQ/T 9006—20××

　 I 目 录

　 前 言 ················································································································ IV 引 言 ················································································································· V 1

　总则 ·························································································································· 1 2

　规范性引用文件 ·········································································································· 1 3

　术语与定义 ················································································································· 2 3.1

　 公路桥梁伸缩装置

　EXPANSION AND CONTRACTION INSTALLATIONS FOR HIGHWAY BRIDGE

　·············· 2 3.2

　 伸缩缝

　EXPANSION AND CONTRACTION JOINT

　···································································· 2 3.3

　 伸缩量

　QUANTITY OF EXPANSION AND CONTRACTION

　·························································· 2 3.4

　 弹性支承组件

　ELASTIC BEARING ELEMENT

　······································································ 2 3.5

　 伸缩装置功能

　FUNCTION OF EXPANSION AND CONTRACTION INSTALLATIONS

　······························ 2 3.6

　 伸缩装置病害

　DISEASES OF EXPANSION AND CONTRACTION INSTALLATIONS

　······························· 2 3.7

　 纵梁

　LONGITUDINAL GIRDER

　························································································ 2 3.8

　 支承横梁

　SUPPORTING BEAM

　······················································································· 2 3.9

　 承压支座和压紧支座

　SUPPORT BEARING AND PRESSING BEARING

　··········································· 2 3.10

　 位移箱

　DISPLACEMENT BOX

　······················································································· 2 3.11

　 位移控制弹簧

　DISPLACEMENT CONTROL SPRING

　······························································ 2 3.12

　 机械铰链位移控制传动装置

　DISPLACEMENT CONTROL MECHANISM OF MECHANICAL HINGE

　········· 2 3.13

　 橡胶密封带

　RUBBER SEAL

　························································································· 3 3.14

　 梳齿板

　COMB PLATE

　································································································ 3 3.15

　 纵向错位

　LONGITUDINAL STAGGER

　·············································································· 3 3.16

　 横向错位

　TRANSVERSE STAGGER

　················································································· 3 3.17

　 竖向错位

　 VERTICAL STAGGER

　··················································································· 3 4

　技术状况检查依据和方法 ······························································································ 3 4.1

　 技术状况检查依据 ··································································································· 3 4.2

　 技术状况检查顺序和要求 ·························································································· 3 4.3

　 各类伸缩装置技术状况分项检查方法 ··········································································· 3 4.3.1

　模数式伸缩装置 ································································································ 3 4.3.2

　梳齿板式伸缩装置 ····························································································· 4 4.3.3

　无缝式伸缩装置 ································································································ 5 4.3.4

　其他类型伸缩装置技术状况检查方法 ····································································· 6 5

　技术状况评定方法及等级分类 ························································································ 6 5.1

　 技术状况评定依据 ··································································································· 6 5.2

　 技术状况评定方法 ··································································································· 7 5.3

　 技术状况评定等级分类 ····························································································· 7 5.3.1

　伸缩装置 ········································································································· 7 5.3.2

　各类型伸缩装置 ································································································ 7 5.3.3

　伸缩装置技术状况评定 ······················································································· 8 5.3.4

　伸缩装置主体结构技术状况评定标度 ····································································· 8 5.3.5

　伸缩装置附属结构技术状况评定标度 ····································································· 9

　AQ/T 9006—20××

　 II 5.4

　 技术状况评定工作流程 ··························································································· 10 6

　技术状况评定 ············································································································ 10 6.1

　 伸缩装置技术状况评定计算 ····················································································· 10 6.1.1

　伸缩装置构件的技术状况评分 ············································································ 10 6.1.2

　伸缩装置部件的技术状况评分 ············································································ 11 6.1.3

　伸缩装置主体结构和附属结构的技术状况评分 ······················································· 12 6.1.4

　伸缩装置总体的技术状况评分 ············································································ 12 6.1.6

　伸缩装置技术状况等级评定 ··············································································· 13 6.2

　 各类伸缩装置部件分类及权重值 ··············································································· 13 6.2.1

　模数式伸缩装置 ······························································································ 13 6.2.2

　梳齿板式伸缩装置 ··························································································· 13 6.2.3

　无缝式伸缩装置 ······························································································ 14 6.2.4

　波形伸缩装置 ································································································· 15 6.2.5

　橡胶板式伸缩装置 ··························································································· 15 6.2.6

　伸缩装置 ······································································································· 15 6.3

　 4 类伸缩装置技术状况单项控制指标 ········································································· 15 7

　模数式伸缩装置技术状况评定 ······················································································ 16 7.1

　 模数式 MA 型 ······································································································· 16 7.2

　 模数式 MB 型 ······································································································· 16 8

　梳齿板式伸缩装置技术状况评定 ··················································································· 17 8.1

　 梳齿板式 SC 型 ····································································································· 17 8.2

　 梳齿板式 SSA 型、梳齿板 SSB 型 ············································································· 18 9

　其他类型伸缩装置技术状况评定 ··················································································· 19 9.1

　 无缝式伸缩装置 ···································································································· 19 9.2

　 波形伸缩装置 ······································································································· 19 9.3

　 橡胶板式伸缩装置 ································································································· 19 附录 I

　伸缩装置典型技术状况分级图 ················································································ 21 附录 I-1

　 模数式伸缩装置典型技术状况 ··········································································· 21 附录 I-1-1

　模数式 MA 型（图 I-1-1）

　·········································································· 21 附录 I-1-2

　模数式 MB 型（图 I-1-2）

　·········································································· 21 附录 I-2 梳齿板式伸缩装置典型技术状况（图 I-2）

　····························································· 22 附录 I-3 无缝式伸缩装置典型技术状况（图 I-3）

　································································ 23 附录 I-4

　 波形伸缩装置技术状况（图 I-4）

　······································································· 24 附录 I-5

　 橡胶板式伸缩装置典型技术状况（图 I-5）

　··························································· 24 附录 II

　伸缩装置技术状况检查记录表 ··············································································· 25 附录 II-1

　 模数式 MA 型伸缩装置技术状况检查记录表 ························································ 25 附录 II-2

　 模数式 MB 型伸缩装置技术状况检查记录表 ························································ 26 附录 II-3

　 梳齿板式 SC 型伸缩装置技术状况检查记录表 ······················································ 27 附录 II-4

　 梳齿板式 SSA 型伸缩装置技术状况检查记录表 ···················································· 28 附录 II-5

　 梳齿板式 SSB 型伸缩装置技术状况检查记录表 ···················································· 29 附录 II-6

　 无缝式伸缩装置技术状况检查记录表 ································································· 30 附录 II-7

　 波形伸缩装置技术状况检查记录表 ···································································· 31 附录 II-8

　 橡胶板式伸缩装置技术状况检查记录表 ······························································ 32 本标准用词说明 ············································································································· 33

　AQ/T 9006—20××

　 III 条文说明 ······················································································································ 34 1

　 总则 ····················································································································· 35 2

　 规范性引用文件 ······································································································ 35 3

　 术语与定义 ············································································································ 35 4

　 技术状况检查依据和方法 ·························································································· 35 4.1

　技术状况检查依据 ····························································································· 35 4.2

　技术状况检查顺序和要求 ···················································································· 35 4.3

　各类伸缩装置技术状况分项检查方法 ····································································· 35 5

　 技术状况评定方法及等级分类 ···················································································· 36 5.1

　技术状况评定依据 ····························································································· 36 5.2

　技术状况评定方法 ····························································································· 36 5.3

　技术状况等级分类 ····························································································· 36 5.4

　技术状况评定工作流程 ······················································································· 36 6

　 技术状况评定 ········································································································· 36 6.1

　伸缩装置技术状况评定计算 ················································································· 36 6.2

　各类伸缩装置部件分类及权重值 ··········································································· 36 6.3

　4 类伸缩装置技术状况单项控制指标 ······································································ 36 7

　 模数式伸缩装置技术状况评定 ···················································································· 37 8

　 梳齿板式伸缩装置技术状况评定 ················································································· 37 9

　 其他类型伸缩装置技术状况评定 ················································································· 37 9.1

　无缝式伸缩装置 ································································································ 37 9.2

　波形伸缩装置 ··································································································· 37 9.3

　橡胶板式伸缩装置 ····························································································· 37

　AQ/T 9006—20××

　 IV 前 言

　 本标准由××××提出。

　本标准由××××归口。

　本标准起草单位：×××××、×××××、×××××。

　本标准主要起草人：

　本标准首次发布。

　AQ/T 9006—20××

　 V 引 言 伸缩装置长期暴露在大气中，使用环境比较恶劣，极易早期破坏。桥梁伸缩装置病害出现后，轻则影响行车舒适性，重则影响行车安全，急剧减低桥梁寿命。因此，如何客观的评价公路桥梁伸缩装置中存在的问题，了解其技术状况，为维修和更换提供科学决策，已成公路桥梁养护中的当务之急。

　然而，如何评定公路桥梁伸缩装置的技术状况行业内尚无统一的标准，导致伸缩装置维修和更换决策随意性大，往往多凭主观经验，误决策的可能性较大，轻则增加管养成本，重则导致安全事故。因此，国内公路管理养护部门急需一个具有可操作性的技术状况评定标准。

　为了规范我省公路桥梁伸缩装置技术状况评定，使我省公路桥梁伸缩装置技术状况评定客观化、管养决策科学化、维修更换合理化，特编制本“标准”。

　AQ/T 9006—20××

　 1 公路桥梁伸缩装置技术状况评定标准

　1

　总则 1.1

　本标准适用于公路桥梁伸缩装置技术状况评定，对于特殊类型伸缩装置，及其他桥梁（市政桥梁、城市轨道交通桥梁和铁路桥梁），可参照执行。

　1.2 公路桥梁伸缩装置技术状况评定采用目测和仪器量测相结合的方法。

　1.3

　公路桥梁伸缩装置技术状况评定采用分层综合评定和 4 类桥梁伸缩装置单项控制指标相结合的方法。

　1.4

　公路桥梁伸缩装置技术状况评定的技术资料，应及时归入桥梁伸缩装置技术档案，必要时，归入公路桥梁管理系统。

　1.5

　公路桥梁伸缩装置技术状况评定，除应符合本标准的规定外，尚应符合国家标准和行业标准相应规定的要求。

　1.6

　本标准规定了我省公路桥梁中常用的模数式伸缩装置、梳齿板式伸缩装置、无缝式伸缩装置、波形伸缩装置和橡胶板式伸缩装置的技术状况评定的术语和定义、技术状况检查依据和方法、技术状况评定方法和等级分类、技术评定细则、以及各类伸缩装置的技术状况评定等内容。

　2

　规范性引用文件 下列文件对于本文件的引用是必不可少的。凡是注日期的引用文件，仅所注日期的版本适用于本文，凡是不注日期的引用文件，其最新版本(包括所有的修改单)适用于本文件：

　GB/T 11345

　焊接无损检测超声检测技术、检测等级和评定 GB/T 12467

　金属材料熔焊质量要求第 2 部分：完整质量要求 GB 50661

　钢结构焊接规范 GB/T 5782

　 六角头螺栓 GB/T 7659

　焊接结构用铸钢件 JT/T 327

　 公路桥梁伸缩装置通用技术条件 JT/T 502

　 公路桥梁波形伸缩装置 JT/T 723

　 单元式多向变位梳形板桥梁伸缩装置 CJT 497

　城市轨道交通桥梁伸缩装置 JB/T 5943

　工程机械焊接件通用技术条件 JTG F80

　 公路工程质量检测评定标准 JTG H11 公路桥涵养护规范 JTG/T H21

　公路桥梁技术状况评定标准 JTG/TF 50

　 公路桥涵施工技术规范 JTG D60

　 公路桥涵设计通用规范 JTJ 3362

　 公路钢筋混凝土及预应力混凝土桥涵设计规范 JTG D64

　 公路钢结构桥梁设计规范 JT/T 722

　 公路桥梁钢结构防腐涂装技术条件 CJJ2 城市桥梁工程施工与质量验收规范 CJJ99 城市桥梁养护技术标准

　AQ/T 9006—20××

　 2 3

　术语与定义 3.1

　公路桥梁伸缩装置 expansion and contraction installations for highway bridge 为使车辆平稳通过桥面并符合桥梁上部结构变形的需要，在伸缩缝处设置的各种装置的总称。

　3.2

　伸缩缝 expansion and contraction joint 为适应桥梁结构变形的需要，在上部结构中设置的间隙。

　3.3

　伸缩量 quantity of expansion and contraction

　伸缩装置拉伸、压缩变形的总和。

　3.4

　弹性支承组件 elastic bearing element 伸缩装置中承压支座、压紧支座的统称。

　3.5

　伸缩装置功能 function of expansion and contraction installations 拉伸和压缩变形产生的伸缩位移，桥梁纵横向坡度产生的转角位移，足够的竖向承载力和竖向刚度。

　3.6

　伸缩装置病害 diseases of expansion and contraction installations 凡是直接影响伸缩装置正常使用功能和行车安全的缺损状态都称为病害。

　3.7

　纵梁 longitudinal girder 采用特殊轧钢工艺一次轧制或热压成型的异型断面型钢，主要应用于模数式伸缩装置的中梁及边梁。

　3.8

　支承横梁 supporting beam

　用于模数式伸缩装置中，用于支承中纵梁的钢结构横梁，分为直梁式和斜梁氏两种。

　3.9

　承压支座和压紧支座 support bearing and pressing bearing

　设置在模数式伸缩装置梁钢与支承横梁之间的弹性组件。承压支座和压紧支座主要使支承横梁具有弹性支承、压紧和减震作用。

　3.10

　位移箱 displacement box

　设置在模数式伸缩装置支承横梁悬臂端，用于伸缩位移的箱型空间装置。

　3.11

　位移控制弹簧 displacement control spring 位移控制弹簧是模数式伸缩装置中控制中纵梁均匀伸缩位移中的专用弹性组件，分为压缩型控制弹簧和剪切型控制弹簧两种，分别由聚氨酯材料和橡胶材料制成，分别应用于格梁式模数式伸缩装置和直梁式模数式伸缩装置。

　3.12

　机械铰链位移控制传动装置 displacement control mechanism of mechanical hinge 模数式伸缩装置中控制中纵梁均匀位移的机械铰链传动位移装置。

　AQ/T 9006—20××

　 3 3.13

　橡胶密封带 rubber seal

　设置在模数式伸缩装置型钢缝隙之间、起密封盒防渗漏水作用的特制橡胶带。

　3.14

　梳齿板 comb plate

　梳齿板伸缩装置中适应位移的钢制梳形齿板，分为尖齿形、梯形和矩形三种。

　3.15

　纵向错位 longitudinal stagger

　伸缩装置沿桥梁中线方向发生的水平相对位移。

　3.16

　横向错位 transverse stagger 伸缩装置沿桥梁中线垂直方向发生的水平相对位移。

　3.17

　竖向错位

　vertical stagger 伸缩装置沿桥面垂直方向发生的竖向相对位移。

　4

　技术状况检查依据和方法 4.1

　技术状况检查依据 4.1.1

　国家及交通运输部伸缩装置相关产品标准、设计、施工与检测养护规范。

　4.1.2

　桥梁伸缩装置设计图和安装图、伸缩装置类型和规格型号、生产厂家、产品质量保证书和进场验收记录等。

　4.1.3

　伸缩装置竣工验收资料和通车后历年养护维修记录。

　4.2

　技术状况检查顺序和要求 4.2.1

　伸缩装置检查顺序：先目测外观，后检查主体结构，最后检查附属结构。

　4.2.2

　技术状况检查应采用目测和仪器测量相结合的方法。

　4.2.3

　各类伸缩装置技术状况应按分类分项和定性定量的原则进行检查。

　4.3

　各类伸缩装置技术状况分项检查方法 4.3.1

　模数式伸缩装置 4.3.1.1 模数式 MA 型伸缩装置技术状况检查项目、内容、方法和指标见表 4.3.1.1。

　表 4.3.1.1

　模数式 MA 型伸缩装置技术状况检查 检查项目

　检查内容

　检查方法

　定量指标

　清洁度 垃圾尘土堆积，齿缝间是否有硬物 目测，钢卷尺 垃圾堆积范围 橡胶密封带 老化、开裂、渗水、漏水等 目测，手电筒、钢卷尺 损坏面积、数量 锚固区混凝土 开裂、破损、裂缝宽度、长度 目测，钢卷尺，铟钢尺，放大镜 裂缝数量、宽度和长度，破损面积 型钢间距均匀性 不均匀性，缝宽过大或过小等状态 目测，铟钢尺，钢卷尺 间距尺寸，最大和最小尺寸，不正常间距长度和范围 4.3.1.2 模数式 MB 型伸缩装置技术状况检查项目、内容、方法和指标见表 4.3.1.2。

　AQ/T 9006—20××

　 4 表 4.3.1.2

　模数式 MB 型伸缩装置技术状况检查 检查项目

　检查内容

　检查方法

　定量指标

　清洁度 垃圾尘土堆积，纵梁间是否有硬物 目测，钢卷尺 垃圾堆积范围 橡胶密封带 垃圾堆积状况，老化、开裂、渗水、漏水等 目测，手电筒、钢卷尺 垃圾堆积范围，损坏面积、数量 锚固区混凝土 开裂、破损、裂缝宽度、长度 目测，钢卷尺，铟钢尺，放大镜 裂缝数量、宽度和长度，破损面积 型钢间距均匀性 不均匀性，缝宽过大或过小 目测，铟钢尺，钢卷尺 间距尺寸，最大和最小尺寸，不正常间距长度和范围 表面平整度 型钢平顺度，凹凸不平，型钢安装松紧度，型钢对接焊缝断裂损伤，车辆通过时出现异常响声和跳车 目测，铟钢尺，钢卷尺，冲击系数测试仪 型钢水平直线弯曲度，凹凸不平高差，型钢焊接断裂数量，冲击系数，不平整范围面积 支承系统 中梁下面支承横梁下挠变形，支承横梁吊架螺栓和螺母松动、损坏、脱落等状态，压紧支座和承压支座变形及损坏 目测，手电筒，铟钢尺，活动扳手 支承横梁下挠变形量，吊架固定螺栓、螺母松动和损坏数量，压紧支座和承压支座损坏数量 位移控制系统 压缩弹簧或剪切弹簧损伤情况，固定位移控制弹簧的吊架的安装螺栓、螺母松动或焊接脱焊等，机械铰链位移控制系统障碍 目测，手电筒，铟钢尺，活动扳手 压缩弹簧的最大压缩变形量，剪切弹簧的最大剪切变形量以及损坏数量，机械铰链的损伤范围 4.3.2

　梳齿板式伸缩装置 4.3.2.1 梳齿板式 SC 型伸缩装置技术状况检查项目、内容、方法和指标见表 4.3.2.1。

　表 4.3.2.1

　梳齿板 SC 型伸缩装置技术状况检查 检查项目

　检查内容

　检查方法

　定量指标

　清洁度 垃圾尘土堆积，齿缝间是否有硬物 目测，钢卷尺 垃圾堆积范围 锚固区混凝土 开裂、破损、裂缝宽度、长度 目测，钢卷尺，铟钢尺，放大镜 裂缝数量、宽度和长度，破损面积 梳齿板 变形，翘起，松动断裂，间隙大小，卡齿，凹凸不平 目测，铟钢尺，钢卷尺，水平尺 梳齿间隙大小，变形，翘起，断裂卡齿数量，不平整面积和高差 导水装置 老化、开裂、渗水、漏水等 目测，钢卷尺 渗水、漏水范围，老化、开裂面积、单元数

　AQ/T 9006—20××

　 5 4.3.2.2 梳齿板 SSA 型伸缩装置技术状况检查项目、内容、方法和指标见表 4.3.2.2。

　表 4.3.2.2

　梳齿板 SSA 型伸缩装置技术状况检查 检查项目

　检查内容

　检查方法

　定量指标

　清洁度 垃圾尘土堆积，齿缝间是否有硬物 目测，钢卷尺 垃圾堆积范围 锚固区混凝土 开裂、破损、裂缝宽度、长度 目测，钢卷尺，铟钢尺，放大镜 裂缝数量、宽度和长度，破损面积 梳齿板 变形，翘起，松动断裂，间隙大小，卡齿，凹凸不平 目测，铟钢尺，钢卷尺，水平尺 梳齿间隙大小，变形，翘起，断裂卡齿数量，不平整面积和高差 固定螺栓、螺母 松动、损坏或脱落 目测，手电筒，逐个检查 数量，单元数 支承转轴、转动控制座、限位螺栓螺母 支承转轴和转动控制座转动灵活度，限位螺栓螺母松动、损伤和脱落现象 目测，手电筒，活动扳手，钢卷尺 数量，单元数，转动控制座灵活度 支承托架连接部件 支承托架脱焊松动变形，连接部件损坏 目测，手电筒，铟钢尺 损坏单元数，脱焊，松动范围 导水装置 老化、开裂、渗水、漏水等 目测，钢卷尺 渗水、漏水范围，老化、开裂面积、单元数 4.3.2.3 梳齿板 SSB 型伸缩装置技术状况检查项目、内容、方法和指标见表 4.3.2.3。

　表 4.3.2.1

　梳齿板 SSB 型伸缩装置技术状况检查 检查项目

　检查内容

　检查方法

　定量指标

　清洁度 垃圾尘土堆积，齿缝间是否有硬物 目测，钢卷尺 垃圾堆积范围 锚固区混凝土 开裂、破损、裂缝宽度、长度 目测，钢卷尺，铟钢尺，放大镜 裂缝数量、宽度和长度，破损面积 梳齿板 变形，翘起，松动断裂，间隙大小，卡齿，凹凸不平 目测，铟钢尺，钢卷尺，水平尺 梳齿间隙大小，变形，翘起，断裂卡齿数量，不平整面积和高差 固定螺栓、螺母 松动、损坏或脱落 目测，手电筒，逐个检查 数量，单元数 支承转轴、转动控制座、限位螺栓螺母 支承转轴和转动控制座转动灵活度，限位螺栓螺母松动、损伤和脱落现象 目测，手电筒，活动扳手，钢卷尺 数量，单元数，转动控制座灵活度 支承托架连接部件 支承托架脱焊松动变形，连接部件损坏 目测，手电筒，铟钢尺 损坏单元数，脱焊，松动范围 导水装置 老化、开裂、渗水、漏水等 目测，钢卷尺 渗水、漏水范围，老化、开裂面积、单元数 4.3.3

　无缝式伸缩装置 技术状况检查项目、内容、方法和指标见表 4.3.3。

　AQ/T 9006—20××

　 6 表 4.3.3

　无缝式伸缩装置技术状况检查 检查项目 检查内容 检查方法 定量指标 清洁度 垃圾尘土 目测 垃圾堆积范围 弹性伸缩体 开裂，破损，垃圾土堆积 目测，钢卷尺 破损长度、范围 4.3.4

　其他类型伸缩装置技术状况检查方法 4.3.4.1

　波形伸缩装置技术状况检查项目、内容、方法和指标见表 4.3.4.1。

　表 4.3.4.1

　波形伸缩装置技术状况检查 检查项目

　检查内容

　检查方法

　定量指标

　清洁度 垃圾尘土 目测 堆积面积 专用密封胶 老化、破裂、渗水、漏水情况 目测，钢卷尺 老化、破裂面积、范围 波形板与槽口混凝土脱开 槽口混凝土开裂、破损情况，与波形板脱开长度，脱开缝隙大小 目测，钢卷尺 局部开裂破损面积范围，与波形钢板脱开长度，缝隙宽度 泡沫棒和 U 形底槽 泡沫棒损坏失效情况，U 形底槽变形情况 目测，钢卷尺 泡沫棒失效范围，U 形底槽失效范围 4.3.4.2

　橡胶板式伸缩装置技术状况检查项目、内容、方法和指标见表 4.3.4.2。

　表 4.3.4.2

　橡胶板式伸缩装置技术状况检查 检查项目

　检查内容

　检查方法

　定量指标

　清洁度 垃圾尘土 目测 垃圾堆积范围 锚固混凝土 开裂、破损 目测，钢卷尺 裂缝宽度、长度，破损面积 橡胶板 破损程度，破损面积 目测，钢卷尺 脱落、破损面积 骨架、钢板支撑结构 角钢平面位置偏离，凹凸不平，高差 目前，铟钢尺，钢卷尺 不平整高差尺寸，偏离尺寸面积 连接槽榫 开裂 卡尺，铟钢尺，钢卷尺 缝隙大小、面积 防水密封胶 老化、破裂、渗水、漏水 目测，钢卷尺 老化、破裂面积、范围 5

　技术状况评定方法及等级分类 5.1

　技术状况评定依据 伸缩装置技术状况评定应采用分项分类与单项控制技术指标项结合的方法，分类分级评定，所依据的标准如表 5.1。

　AQ/T 9006—20××

　 7 表 5.1

　技术状况评定依据的标准 伸缩装置类型

　主体结构

　依据标准

　模数式 MA 型 边纵梁 JT/T 327 模数式 MB 型 边纵梁，中纵梁，支承横梁，位移箱，承压支座，压紧支座，位移控制弹簧，机械铰链，连接吊架 梳齿板式 SC 型 悬臂梳齿板 梳齿板式 SSA 型 固定梳齿板，活动梳齿板，不锈钢板，固定螺栓，转动控制座，支承托架 JT/T 327,JT/T 723 梳齿板式 SSB 型 固定梳齿板，活动梳齿板，不锈钢板，固定螺栓，转动控制座，支承托架 JT/T 327,JT/T 723 无缝式 弹性伸缩体 JT/T 327,JT/T 723 波形 波形钢板，U 形槽，泡沫棒 JT/T 502 橡胶板式 橡胶板，不锈钢板，支承角钢，固定螺栓组，连接槽榫 JT/T 327 5.2

　技术状况评定方法 5.2.1 伸缩装置技术状况评定包括各构件、各部件、主体结构、附属结构和总体评定。伸缩装置技术状况评定采用分层综合评定和 4 类桥梁伸缩装置单项控制指标相结合的方法，先对各构件进行评定，然后对各部件进行评定，再对主...