空间曲线异形塔柱爬模体系设计研究
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摘要
依托茂名市水东湾大桥项目,针对爬架体系中爬模系统需具备适应塔柱空间曲线变化的能力、各区爬架需具备姿态调整能力,并需保证塔柱线形及外观等施工难点,考虑斜拉桥主塔爬架体系适应性、主要性能、技术参数后计算分析爬架系统,对爬架体系进行优化设计研究。考虑塔柱截面变化规律、适应性、模板周转、特殊连接及控制测量后设计模板体系,解决爬模体系在空间曲线异形塔柱中的适用性难题。通过该工法,不仅保证模板强度和刚度,又保证塔柱线形及外观,经济高效。
Based on the Shuidongwan Bridge project in Maoming,the creeping system should have the ability to adapt to the tower column space curve change,the creeping in each area should have the attitude adjustment ability,and the construction difficulties such as the alignment and appearance of the tower column should be guaranteed. After considering the adaptability,main performance and technical parameters of the main tower creeping formwork system of cable-stayed bridge,the creeping formwork system is calculated and analyzed,and the optimal design of the creeping formwork is studied. Then after considering the changing rule of column section,adaptability,formwork turnover,special connection and control measurement,the formwork system is designed to solve the applicability problem of creeping formwork system in special-shaped column with space curve. Through the method,it not only guarantees the strength and stiffness of the formwork,but also guarantees the alignment and appearance of the tower column,which is economical and efficient.
Based on the Shuidongwan Bridge project in Maoming,the creeping system should have the ability to adapt to the tower column space curve change,the creeping in each area should have the attitude adjustment ability,and the construction difficulties such as the alignment and appearance of the tower column should be guaranteed. After considering the adaptability,main performance and technical parameters of the main tower creeping formwork system of cable-stayed bridge,the creeping formwork system is calculated and analyzed,and the optimal design of the creeping formwork is studied. Then after considering the changing rule of column section,adaptability,formwork turnover,special connection and control measurement,the formwork system is designed to solve the applicability problem of creeping formwork system in special-shaped column with space curve. Through the method,it not only guarantees the strength and stiffness of the formwork,but also guarantees the alignment and appearance of the tower column,which is economical and efficient.
引文
[1]江苏江都建设工程有限公司.液压爬升模板工程技术规程:JGJ 195—2010[S].北京:中国建筑工业出版社,2010.
[2]周永波,王晓冬,程广超,等.深圳湾壹号液压爬模施工难点及解决措施研究[J].施工技术,2017,46(22):82-84.
[3]中交第一公路工程局有限公司.公路桥涵施工技术规范:JTJ/T F50—2011[S].北京:人民交通出版社,2011.
[4]杨艳超,高远,郑吉成,等.津湾广场分段爬升液压爬模施工技术[J].施工技术,2017,46(24):12-15,36.
[5]杨辉.高塔型斜拉桥异型主塔施工测量控制技术[J].北京测绘,2016(4):100-103.
[6]景明.空间曲面异型主塔爬模施工技术[J].四川建筑,2012,32(6):196-197,200.
[2]周永波,王晓冬,程广超,等.深圳湾壹号液压爬模施工难点及解决措施研究[J].施工技术,2017,46(22):82-84.
[3]中交第一公路工程局有限公司.公路桥涵施工技术规范:JTJ/T F50—2011[S].北京:人民交通出版社,2011.
[4]杨艳超,高远,郑吉成,等.津湾广场分段爬升液压爬模施工技术[J].施工技术,2017,46(24):12-15,36.
[5]杨辉.高塔型斜拉桥异型主塔施工测量控制技术[J].北京测绘,2016(4):100-103.
[6]景明.空间曲面异型主塔爬模施工技术[J].四川建筑,2012,32(6):196-197,200.