| Simplified Calculation Methods for All-Vertical-Piled Wharf in Offshore Deep Water |
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| 作者姓名： | WANG Yuan-zhan HE Lin-lin |
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| 作者单位： | State Key Laboratory for Simulation & Safety of Hydraulic Engineering, Tianjin Key Laboratory of Harbor & Ocean Engineering, Tianjin University, Tianjin 300072, China,State Key Laboratory for Simulation & Safety of Hydraulic Engineering, Tianjin Key Laboratory of Harbor & Ocean Engineering, Tianjin University, Tianjin 300072, China;College of River and Ocean Engineering, Key Laboratory of Regulation Technology for Inland Waterway in Transportation Industry, Key Laboratory of Hydraulic and Waterway Engineering of Ministry of Education, Chongqing Jiaotong University, Chongqing 400074, China |
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| 基金项目： | This work was financially supported by the Education Commission Fund of Chongqing (Grant No. KJ1500518), the Science Commission Fund of Chongqing (Grant No. cstc2016jcyjA0123), the Open Fund of Key Laboratory of Regulation Technology for Inland Waterway in Transportation Industry of Chongqing Jiaotong University (Grant No. NHHD-201506). |
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| 摘 要： | All-vertical-piled wharf is a kind of high-piled wharf, but it is extremely different from the traditional ones in some aspects, such as the structural property, bearing characteristics, failure mechanism, and static or dynamic calculation methods. In this paper, the finite element method (FEM) and theoretical analysis method are combined to analyze the structural property, bearing behavior and failure mode of the all-vertical-piled wharf in offshore deep water, and to establish simplified calculation methods determining the horizontal static ultimate bearing capacity and the dynamic response for the all-vertical-piled wharf. Firstly, the bearing capability and failure mechanism for all-vertical-piled wharf are studied by use of FEM, and the failure criterion is put forward for all-vertical-piled wharf based on the ‘plastic hinge’. According to the failure criterion and P-Y curve method, the simplified calculation method of the horizontal static ultimate bearing capacity for all-vertical-piled wharf is proposed, and it is verified that the simplified method is reasonable by comparison with the FEM. Secondly, the displacement dynamic magnification factor for the all-vertical-piled wharf under wave cyclic loads and ship impact loads is calculated by the FEM and the theory formula based on the single degree of freedom (SDOF) system. The results obtained by the two methods are in good agreement with each other, and the simplified calculation method of the displacement dynamic magnification factor for all-vertical-piled wharf under dynamic loads is proposed. Then the simplified calculation method determining the dynamic response for the all-vertical-piled wharf is proposed in combination with P-Y curve method. That is, the dynamic response of the structure can be obtained through the static calculation results of P-Y curve method multiplied by the displacement dynamic magnification factor. The feasibility of the simplified dynamic response method is verified by comparison with the FEM under different conditions.
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| 关 键 词： | all-vertical-piled wharf failure criterion plastic hinge dynamic amplification coefficient simplified calculation methods |
| 收稿时间： | 2015/10/17 0:00:00 |
| 修稿时间： | 2016/1/22 0:00:00 |
Simplified Calculation Methods for All-Vertical-Piled Wharf in Offshore Deep Water |
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| WANG Yuan-zhan,HE Lin-lin.Simplified Calculation Methods for All-Vertical-Piled Wharf in Offshore Deep Water[J].Ocean Engineering,2017,31(2):182-191. |
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| Authors: | WANG Yuan-zhan and HE Lin-lin |
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| Institution: | State Key Laboratory for Simulation & Safety of Hydraulic Engineering, Tianjin Key Laboratory of Harbor & Ocean Engineering, Tianjin University, Tianjin 300072, China and State Key Laboratory for Simulation & Safety of Hydraulic Engineering, Tianjin Key Laboratory of Harbor & Ocean Engineering, Tianjin University, Tianjin 300072, China;College of River and Ocean Engineering, Key Laboratory of Regulation Technology for Inland Waterway in Transportation Industry, Key Laboratory of Hydraulic and Waterway Engineering of Ministry of Education, Chongqing Jiaotong University, Chongqing 400074, China |
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| Abstract: | |
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| Keywords: | all-vertical-piled wharf failure criterion plastic hinge dynamic amplification coefficient simplified calculation methods |
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