一种复杂海况下的哑铃形主墩双壁钢围堰的设计与施工
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摘要
以汕头新津河大桥主墩承台钢围堰工程实践为基础,介绍了在复杂海况下双壁钢围堰设计及施工的难点和关键技术;采用大型通用有限元分析软件ANSYS对钢围堰的整个施工过程进行计算,分析了各工况下围堰各构件的应力及变形情况;通过对钢围堰吊杆下放过程轴力的现场实测和理论分析相结合,为该海况下围堰安装施工提供了必要的安全保证。
Based on the engineering practice of steel cofferdam for main pier pile cap of Shantou Xinjin River Bridge, the difficulty and key technology in the design and construction of double-wall steel cofferdam under the condition of complex sea are introduced. According to the general finite element analysis software ANSYS on the whole construction process of steel cofferdam to calculate, the stress and strain of each component of the cofferdam under different working conditions are analyzed.Through the combination of field measurement and theoretical analysis of the axial force of the steel cofferdam's hanger rod during the lowering process, the necessary safety guarantee is provided for the installation and construction of the cofferdam under this sea conditions.
Based on the engineering practice of steel cofferdam for main pier pile cap of Shantou Xinjin River Bridge, the difficulty and key technology in the design and construction of double-wall steel cofferdam under the condition of complex sea are introduced. According to the general finite element analysis software ANSYS on the whole construction process of steel cofferdam to calculate, the stress and strain of each component of the cofferdam under different working conditions are analyzed.Through the combination of field measurement and theoretical analysis of the axial force of the steel cofferdam's hanger rod during the lowering process, the necessary safety guarantee is provided for the installation and construction of the cofferdam under this sea conditions.
引文
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[5]张遵明.潮汐环境中大型超重双壁吊箱围堰施工技术[J].现代交通技术,2008,5(5):56-58.ZHANG Zun-ming. The double-wall cofferdam construction technology in tide environment[J]. Modern Transportation Tecnhology,2008, 5(5):56-58.
[6]康学云,郭佳嘉,段召江.分块装配式砼底板钢吊箱在泉州湾跨海大桥承台施工中的运用[J].交通工程建设,2013(2):43-48.KANG Xue-yun, GUO Jia-jia, DUAN Zhao-jiang. Application of steel hanging box with prefabricated concrete floor in the construction of bearing platform of Quanzhou bay bridge[J]. Traffic Engineering Construction, 2013(2):43-48.
[7]朱勇战.西江特大桥双壁钢吊箱设计与施工[J].山西建筑,2010,36(9):309-311.ZHU Yong-zhan. Design and construction of double-wall steel boxed for West River Bridge[J]. Shanxi Architecture, 2010, 36(9):309-311.
[2]时天利,任回兴,贺茂生.苏通大桥深水双壁钢围堰设计与施工[J].世界桥梁,2007(3):28-31.SHI Tian-li, REN Hui-xing, HE Mao-sheng. Design and construction of deep water double-wall steel cofferdams of Sutong Bridge[J].World Bridges, 2007(3):28-31.
[3]周延东,雷震名,孙国民,等.涌浪基本理论研究综述[J].水道港口,2016,37(1):1-6.ZHOU Yan-dong, LEI Zhen-ming, SUN Guo-min, et al. A review on basic theory research of swell[J]. Journal of Waterway and Harbor,2016, 37(1):1-6.
[4]王晓敬,马行政.海上承台双壁钢围堰围堰设计与施工[J].铁道标准设计,2012(8):45-48.WANG Xiao-jing, MA Xing-zheng. Design and construction of double wall steel-boxed cofferdam for offshore pile cap[J]. Railway Standard Design, 2012(8):45-48.
[5]张遵明.潮汐环境中大型超重双壁吊箱围堰施工技术[J].现代交通技术,2008,5(5):56-58.ZHANG Zun-ming. The double-wall cofferdam construction technology in tide environment[J]. Modern Transportation Tecnhology,2008, 5(5):56-58.
[6]康学云,郭佳嘉,段召江.分块装配式砼底板钢吊箱在泉州湾跨海大桥承台施工中的运用[J].交通工程建设,2013(2):43-48.KANG Xue-yun, GUO Jia-jia, DUAN Zhao-jiang. Application of steel hanging box with prefabricated concrete floor in the construction of bearing platform of Quanzhou bay bridge[J]. Traffic Engineering Construction, 2013(2):43-48.
[7]朱勇战.西江特大桥双壁钢吊箱设计与施工[J].山西建筑,2010,36(9):309-311.ZHU Yong-zhan. Design and construction of double-wall steel boxed for West River Bridge[J]. Shanxi Architecture, 2010, 36(9):309-311.