T/CSPSTC 124-2023 钢箱梁步履式顶推施工技术规程

ICS93.040

CCSP26

团体标准

T/CSPSTC124—2023

钢箱梁步履式顶推施工技术规程

Technicalcodeofpracticeforwalking⁃typeincrementallaunchingconstruction

ofsteel⁃boxgirder

2023⁃12⁃26发布2023⁃12⁃31实施

中国科技产业化促进会发布

中国标准出版社出版

T/CSPSTC124—2023

目录

前言··························································································································Ⅲ

引言··························································································································Ⅳ

1范围·······················································································································1

2规范性引用文件········································································································1

3术语和定义··············································································································1

4基本规定·················································································································2

4.1施工准备········································································································…2

4.2施工设计········································································································…2

4.3施工实施········································································································…3

4.4施工监控········································································································…4

4.5其他规定········································································································…4

5临时设施设计与分析计算····························································································4

5.1临时设施类型··································································································…4

5.2支架标高········································································································…4

5.3设计内容········································································································…4

5.4荷载类型及组合·······························································································…5

5.5施工支架········································································································…6

5.6导梁··············································································································…7

6步履式顶推系统安装··································································································7

6.1基本要求········································································································…7

6.2步履式顶推系统·······························································································…8

6.3步履式顶推装置的布置······················································································…8

6.4步履式顶推系统安装·························································································…9

6.5步履式顶推系统试运行及操作流程······································································…10

7梁体拼装及顶推施工································································································10

7.1临时支墩施工·································································································…10

7.2梁体拼装·······································································································…12

7.3导梁安装及拆除······························································································…12

7.4顶推装置桥位安装···························································································…12

7.5顶推作业·······································································································…12

7.6支座安装·······································································································…13

7.7落梁施工·······································································································…14

8施工监控···············································································································14

Ⅰ

T/CSPSTC124—2023

8.1基本要求·······································································································…14

8.2监控内容·······································································································…14

8.3监控设备·······································································································…14

8.4监测点布置····································································································…15

8.5监控频率·······································································································…15

8.6监控指标·······································································································…15

参考文献····················································································································16

Ⅱ

T/CSPSTC124—2023

前言

本文件按照GB/T1.1—2020《标准化工作导则第1部分：标准化文件的结构和起草规则》的规

定起草。

请注意本文件的某些内容可能涉及专利。本文件的发布机构不承担识别专利的责任。

本文件由中铁上海工程局集团有限公司提出。

本文件由中国科技产业化促进会归口。

本文件起草单位：中铁上海工程局集团第五工程有限公司、中铁二十一局集团第三工程有限公司、

中铁建城建交通发展有限公司、通号(郑州)电气化局郑州铁路工程有限公司、浙江省建投交通基础建设

集团有限公司、山东省路桥集团有限公司、中铁三局集团有限公司、中交世通(重庆)重工有限公司、中交

路桥华南工程有限公司、湖北交投建设集团有限公司、中铁十一局集团第一工程有限公司、四川省公路

规划勘察设计研究院有限公司、中建三局第一建设工程有限责任公司、广西交科集团有限公司、柳州欧

维姆工程有限公司、中国铁建大桥工程局集团有限公司、中铁九桥工程有限公司、中铁十四局集团第三

工程有限公司、中铁二十一局集团有限公司、中铁上海工程局集团有限公司、标准联合咨询中心股份

公司。

本文件主要起草人：唐俊、何鹏、宋小军、孙引浩、韦干、王立峰、高寅凯、刘颖、曹彦华、陈柯、周旭、

张宏、陈龙、田波、陈俊锟、陈洪全、于孟生、朱廷志、赵健、朱东明、裴有陆、李晟、曹庆阳、覃晶、冯钰、

王龙林、薛青松、周智权、安超、邢希瑞、王刚俊、才宝山、曾柯林、胡秀林、卓小丽、刘文、彭浩、高睿、

高世强、钟新国、洪越、彭先振、安路明、梁辉、周胜利、王中伟、杨东平、孔泽、邝瑜琨、李龙吉、朱淑兰、

葛志勇、潘平、景海刚、张国伟、王广松、郭之起、李超、黄志强、卢成绪。

Ⅲ

T/CSPSTC124—2023

引言

顶推施工方法在国内桥梁建设工程中已发展成熟，主要应用于桥梁上部结构跨越各种障碍物的施

工，分为拖拉式、推移式、步履式等多种顶推形式。顶推施工方法具有不中断桥下交通、材料设备可重

复利用、施工效率高、便于空中姿态风险监控等优点，在跨越河道、山谷、既有线以及桥区场地环境受限

的桥梁建设中具有明显的优势，近些年来得到了很好地应用。但随着桥梁跨度不断增大、桥型结构愈

发复杂、顶推梁体更重、安装精度越来越高等特点，且步履式顶推施工目前还没有专门的规程或指南可

以参照。因此，结合建设行业采用步履式顶推施工方法进行桥梁安装的实际需求，制定本文件。

本文件系为指导步履式顶推施工方法，统一安全、质量及技术标准要求，规范现场施工作业行为，

在总结该类桥梁建设经验基础上编制而成的，同时结合已有的工程实践经验，对步履式顶推施工的关

键环节和具体控制指标进行了规定。本文件仅限定了步履式顶推施工，不涉及主梁和梁体本身的附属

结构工程施工。除能满足步履式顶推施工的工程外，其他需采用步履式顶推装置进行安装的类似大型

构件亦可参考本文件相关内容。

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T/CSPSTC124—2023

钢箱梁步履式顶推施工技术规程

1范围

本文件提出了钢箱梁步履式顶推的基本规定，规定了临时设施设计与分析计算、步履式顶推系统

安装、梁体拼装及顶推施工、施工监控的要求。

本文件适用于采用步履式顶推施工的梁式桥施工。

2规范性引用文件

下列文件中的内容通过文中的规范性引用而构成本文件必不可少的条款。其中，注日期的引用文

件，仅该日期对应的版本适用于本文件；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/T156标准电压

GB/T762标准电流等级

GB/T2970厚钢板超声检测方法

GB50017—2017钢结构设计标准

GB50661钢结构焊接规范

JTG/T3360⁃01—2018公路桥梁抗风设计规范

JTG/T3650⁃01公路桥梁施工监控技术规程

JTS144⁃1—2010港口工程荷载规范

3术语和定义

下列术语和定义适用于本文件。

3.1

步履式顶推walking⁃typeincrementallaunchingtechnology

通过集顶升、平移、横向调整于一体的顶推装置，实现钢箱梁的顺桥向、横桥向、竖向的移动或调

整，利用“顶”“推”“落”“回”四个步骤，形成循环顶推的施工方法。

3.2

步履式顶推系统walking⁃typeincrementallaunchingsystem

为能实现主梁前移施工的步履式顶推装置、液压泵站、控制系统等组成的系统。

3.3

步履式顶推装置walking⁃typeincrementallaunchingequipment

包含顶推顶、顶举顶、纠偏顶，同时集顶推、纠偏、落梁功能于一体的步履式顶推施工的核心装备。

3.4

临时支墩temporarypiers

用于顶推过程中装置布置及落梁的临时支墩。

3.5

导梁nosegirder

装于梁前（后）端，为保证梁在移动时的纵向抗倾覆稳定性以及减少梁的悬伸长度从而降低安装应

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T/CSPSTC124—2023

力的临时辅助结构。

3.6

临时垫梁temporarysupports

用于梁体顶进后落梁阶段位于顶推装置与梁体间的临时支撑、抄垫结构。

3.7

临时塔架temporarytower

用于钢箱梁顶推过程中改善导梁前端下挠及悬臂端应力集中的临时辅助支架。

注：起到了设置导梁解决不了的施工应力的问题。

3.8

施工索力constructiontensionforce

顶推过程中各工况临时塔架扣索的张力。

3.9

线形监控alignmentmonitorandcontrol

顶推施工全过程中对整体梁段线形的监视及控制。

3.10

横向位移lateraldisplacement

由于顶推液压、位移不同步、摩擦力变化、存在水平横坡等导致的梁体横向偏位。

4基本规定

4.1施工准备

4.1.1步履式顶推施工应遵循设计文件的基本要求，同时需结合现场地质、水文和气候条件开展施工

专项方案研究；应熟悉建设、设计、施工、监理等相关文件及技术资料，充分了解桥梁结构特点、设计理

念、施工工艺和质量标准等，全面把握工艺控制的重点和难点。

4.1.2步履式顶推施工前，应编制专项施工方案，并组织专家进行评审。对审批通过的专项施工方案

应进行技术和安全交底，并明确人员监督实施。

4.1.3根据主梁跨度、质量、计算分析结果及工程实际条件，确定顶推施工各项临时辅助措施方案。主

梁节段划分应根据主梁结构设计、设备吊装能力、加工场地大小等因素综合确定。

4.1.4顶推施工前应成立专门的组织指挥机构，安排部署顶推工作，做到统一指挥，分工明确，信息

畅通。

4.2施工设计

4.2.1顶推分为单向顶推和双向顶推，其中双向顶推又分为背向顶推和相向顶推。单向顶推为常用施

工方法，适用于桥梁长度较短的顶推，相对于双向顶推，施工速度较慢；背向顶推适用于桥梁长度较长、

中间具备布置梁场条件、对施工速度要求快的顶推；相向顶推适用于桥梁长度较长、两端具备布置梁场

条件、对施工速度要求快的顶推。

4.2.2顶推流程为：导梁安装—梁段运输至喂梁区—梁段滑移/吊装到位—后一轮梁段与母梁段组

拼—顶推装置起顶—钢箱梁顶推—下一轮次顶推施工—导梁逐段拆除—顶推就位、落梁，详见图1。

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图1顶推流程图

4.2.3顶推的平面移动可分为直线和圆曲线，平面圆曲线顶推通过“以直代曲，动态调整”实现。顶推

的立面移动可分为直线和圆曲线，直线和圆曲线均通过拟定行走线前行，当存在多段组合竖向线主梁

时，通过线形拟合的方式将顶推竖向线调整为直线或圆曲线，详见图2。拟定行走线标高＝主梁拟合

后线形标高+拟合后线形高差+导梁最大变形+作业空间。

标引序号说明：

1——支墩；

2——抄垫；

3——主梁；

4——成桥梁底线形；

5——拟合梁底线形。

图2线形拟合示意图

4.2.4施工前应