
110
DOI:10.7672/sgjs2016080110
施工技术
CONSTRUCTION TECHNOLOGY
桥梁工程高墩模板施工技术比较分析
易达,蕙振东
(中交一公局第三工程有限公司,北京101102)
2016年4月下第45卷第8期
【摘要】对桥梁工程高墩用悬模、爬模、滑模、辊模和吊模施工技术经济指标进行比较,从各种施工技术的原理、模板系统成本、人员及机械设备、施工进度、施工质量和施工安全性等方面阐述了其适用性。分析结果表明:如果是带斜率的桥墩施工,则最好用液压爬模施工;如果桥墩不高、进度宽松时可以用悬模施工;强调进度的山区高墩,可
考患滑模施工;如果综合考虑各方因素,则可考虑吊模、辊模施工。【关键词】桥梁工程;高墩;模板;施工;对比分析
【中图分类号]TU755.2
【文献标识码]A
【文章编号】1002-8498(2016)08-0110-04
ComparisonandAnalysisforHighPierFormwork
Construction of Bridge Engineering
YiDa,XiZhendong
(The Third Engineering Co. , Lid. of the First Highway Engineering Bureau of CCCC, Bejing 101102, China)
Abstract : The economical indexes for suspension formwork, climbing formwork, sliding formwork, roller formwork and hanging formwork construction used in bridge piers are compared. From the construction principle, formwork cost, personnel and equipment, construction schedule, construction quality and safety, this paper describes their applicability. The analysis results show that if the bridge has oblique piers, the hydraulic climbing formwork is best; if the pier is not high and has loose schedule, the suspension formwork is suitable; and if it has tight schedule, the sliding formwork should be considered;
if considering the comprehensive factors, hanging formwork and roller formwork should be applied. Keywords:bridges;high pier;formwork;construction;comparisor
15种高墩模板施工技术简介 1.1悬模
定制木模板通过连接爪与斜撑悬臂支架平台连接成整体模板系统,塔式起重机分块提升模板系统支撑于提前预埋在本节墩柱混凝土内部的爬锥抗剪螺杆上,依靠埋件抗剪作用来承担竖向施工荷载,模板对拉杆承担混凝土浇筑侧压力,如图1 所示。
1.2爬模
定制木模板、上支架平台与自爬架连接成整体系统,预埋在墩柱混凝土内部的爬锥螺杆固定导轨,通过液压千斤顶顺导轨方向同步顶升模板系统至下节墩柱浇筑位置,依靠爬锥埋件承担竖向荷载,模板对拉杆承担混凝土浇筑侧压力,如图2 所示。
【作者简介]易达,高级工程师,E-mail;94209514@qq-com[收稿日期]2015-12-02;【修订日期】2016-02-03
图1悬模设计效果
Fig.1 Suspension formwork design effect
1.3滑模
预理在墩柱混凝土内的通长无缝钢管支撑楔块千斤顶同步提升钢悬臂梁连接的钢模系统平台,顺墩柱混凝土侧面滑动到下一次浇筑位置,如图3所示。 1.4辊模
通过预埋在墩柱混凝土内的通长无缝钢管支撑楔块千斤顶同步提升钢悬臂梁连接的钢结构系统,顺墩柱侧面的内衬树脂板滚动到下一次浇筑位