新型预制装配式钢混组合梁桥关键施工技术研究

杨耀; 周姝

doi:10.13206/j.gjgS19102103

新型预制装配式钢混组合梁桥关键施工技术研究

doi: 10.13206/j.gjgS19102103

杨耀¹,
周姝²

1. 长沙城市发展集团有限公司, 长沙 410011;
2. 长沙理工大学国际学院, 长沙 410114

详细信息

作者简介:
杨耀,男,1992年出生,硕士研究生,工程师。Email:845850714@qq.com

计量
- 文章访问数: 669
- HTML全文浏览量: 95
- PDF下载量: 29
- 被引次数: 0
出版历程
- 收稿日期: 2019-10-21
- 网络出版日期: 2021-07-22

Research on the Key Construction Techniques of Precast Assembly for New Type Steel-Concrete Composite Girder Bridge

Yao Yang¹,
Shu Zhou²

1. Changsha Urban Development Group Co., Ltd., Changsha 410011, China;
2. International College, Changsha University of Science and Technology, Changsha 410114, China

摘要

摘要: 钢-混凝土板组合梁桥预制装配技术是一种在工厂预制墩柱、盖梁、钢梁和混凝土桥面板，再运至施工现场进行快速装配施工的一种新型组合桥梁施工技术。目前针对钢混组合梁桥的主梁预制装配施工的研究较多，而对桥梁墩柱、盖梁和主梁全预制装配施工综合分析的研究较少，故对桥梁主体结构全预制装配施工关键技术的研究具有重要意义。
以全国首例多主梁预制钢混组合梁桥为实例，对桥梁墩柱、盖梁和钢混组合梁的制作、运输和现场拼装等施工关键技术进行了研究。通过总结现场施工经验，确定了钢混组合梁桥主体结构现场拼装的标准化施工工艺；钢混组合梁施工工艺：临时支撑搭设、梁段现场吊装、组合梁精调定位、顶层混凝土桥面板施工、永久支座锚栓孔灌浆施工、组合梁焊接、落梁至永久支座、墩顶横梁混凝土施工；墩柱施工工艺：承台表面清理、坐浆挡板安装、墩柱翻身吊装、墩柱安装对位、墩柱精调、承台顶面坐浆、墩柱微调及套筒灌浆；盖梁施工工艺：盖梁支架安装、坐浆挡板安装、盖梁安装、墩柱顶坐浆、盖梁微调及套筒灌浆、湿接缝施工、预应力施工。研究表明：桥梁主梁采用11片工字钢梁与预制混凝土板组成的组合梁，改善了桥梁结构自重、解决了运输问题，是对钢混组合梁结构的优化设计；墩柱、盖梁、钢混梁吊装施工中研制的标准化临时支撑结构、吊装方案和施工工序，提高了施工现场管理水平，促进了管理的精细化；预制墩柱与现浇承台、预制盖梁之间通过灌浆套筒进行连接，其标准化的施工工艺解决了预制装配施工的关键技术问题；桥梁主体结构采用预制装配技术，改变了传统的施工工艺，产生了良好的社会效益，是桥梁发展的必然趋势。
- 钢混组合梁 /
- 预制 /
- 装配 /
- 施工技术
Abstract: The precast assembly technology of steel-concrete composite girder bridge is a new type of construction technology, in which piers, caps, steel girders and concrete decks are prefabricated in factories and then transported to the construction site for assembling rapidly.At present, there are many researches on the precast assembly of the main girder of steel-concrete composite girder bridge, but few comprehensive analysis researches on the precast assembly of piers, caps and main girders. Therefore, it is of great significance to research the key construction techniques of the full precast assembly of the main structure of the bridge.
Taking the first multi-girder steel-concrete composite girder bridge in China as an example, this paper researches the key construction techniques of piers, caps and steel-concrete composite girders, such as fabrication, transportation and assembly.Through summarizing the construction experience, the standardized construction technology of the main structure for the steel-concrete composite bridge is determined. Construction technology of steel-concrete composite girders:temporary supports erection,girders hoisting on-site, precise adjustment and positioning for composite girders, construction for the top concrete of bridge deck, grouting construction for anchor bolt holes of permanent bearing, welding for composite girders, girders falling to permanent bearing and concrete construction for beams on pier.Construction technology of piers:surface cleaning for cushion caps, installation for baffle plate of grouting, turning over and hoisting for piers, alignment for piers, precise adjustment for piers, grouting on top of cushion caps, fine adjustment for piers and sleeve grouting. Construction technology of caps:temporary supports installation, installation for baffle plate of grouting, caps installation, grouting on top of piers, cap beam fine adjustment for caps and sleeve grouting, construction for wet-joint, prestressing construction. The conclusions are as follows, the main girder of the bridge is composed of 11 I-shaped steel girders and precast concrete slabs, which reduces the weight of the bridge structure and solves the transportation problem,and it is an optimum design for the structure of steel-concrete composite girders.Standardized temporary support structure, hoisting scheme and construction procedure have been developed in construction of piers, caps and steel-concrete girders, which improves the management level of construction site and promotes the refinement of management.Grouting sleeve connections are adopted between piers,cushion caps and cap beams, and standardized construction technology has been developed, then key technical problems in precast assembly construction have been solved. The main structure of the bridge adopts precast assembly technology, which changes the traditional construction technology and produces good social benefits, which is the inevitable trend of bridge development.
- steel-concrete composite girder /
- precast /
- assembly /
- construction techniques

HTML全文

参考文献(16)

[1]	马晓刚,徐飞廉.城市高架桥标准结构采用钢混组合梁的适用性分析[J].城市道桥与防洪,2018(3):64-67,9 -10.
[2]	Choo J F, Choi Y C, Choi W C, et al. Behavioral characteristics of hybrid girders according to type of steel-concrete connection[J].Archives of Civil and Mechanical Engineering, 2019,19(1):47-62.
[3]	李杰,张云龙,丛晓辉,等.钢-混凝土组合梁的研究现状与展望[J].吉林建筑大学学报,2016,33(6):19-24.
[4]	田飞. 钢-预制混凝土板组合连续梁桥的结构性能与试验研究[D].南京:东南大学,2016.
[5]	Hasan Q A, Van Badaruzzaman W H, Ahmed A W, et al. The state of the art of steel and steel concrete composite straight plate girder bridges[J].Thin-Walled Structures, 2017,119:988-1020.
[6]	张凯.中小跨径钢板组合梁桥快速建造技术与应用研究[D].西安:长安大学,2016.
[7]	Fabrizio P,Renato G,Silvia A, et al. On the cyclic behaviour of new pier-to-deck connections for short-medium span composite I-girder bridges[J].Journal of Traffic and Transportation Engineering, 2018,5(6):439-453.
[8]	陈景,赵丰,刘波,等.装配整体式混凝土结构钢筋连接技术综述[J].施工技术,2018,47(10):24-26 ,31.
[9]	Giuseppe A,Enrico C,Silvia A, et al. Experimental characterization and component-based modeling of deck-to-pier connections for composite bridges[J].Journal of Constructional Steel Research, 2018,150:31-50.
[10]	苏立超.装配式组合钢箱梁在桥梁工程中的应用[J].施工技术,2015,44(17):40-41 ,78.
[11]	胡胜全.城市桥梁预制拼装施工与质量控制[J].中国市政工程,2017(3):78-81,126 -127.
[12]	郑永峰,郭正兴,张新.套筒内腔构造对钢筋套筒灌浆连接黏结性能的影响[J].建筑结构学报,2018,39(9):158-166.
[13]	陈金彪. 装配式桥梁预制空心桥墩与承台连接性能的研究与应用[D].合肥:合肥工业大学,2017.
[14]	尹富秋.中心城区高架桥桥墩预制拼装施工关键技术[J].施工技术,2017,46(12):80-82.
[15]	葛继平,闫兴非,王志强.2段式预制拼装预应力混凝土桥墩的抗震性能[J].铁道科学与工程学报,2017,14(11):2390-2398.
[16]	周翔宇.全预制装配桥梁工程实施要点简析[J].中国市政工程,2017(3):99-101,105 ,128-129.