WAVE LOAD ON COUPLING SYSTEM OF SINGLE COLUMN PIER AND SELF-FLOATING ANTI-COLLISION DEVICE
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摘要: 针对独柱墩-自浮式防船撞装置耦合体系，开展室内波浪力试验并总结相关规律，利用试验结果验证校准AQWA数值模型。根据结构所受波浪压强的分布情况，利用Morison公式提取相应的荷载并得到结构水动力系数。考虑波浪高度、波浪周期、防撞装置断面形式和大小、防撞装置自浮比等影响因素，计算结构惯性力系数和接触力系数与相关因素的定量关系。研究表明：自浮式防撞装置起伏运动产生辐射波浪，使墩柱波压强数值偏大但不改变总体分布趋势。结构间接触力随机变化，可把结构接触力与墩柱波浪力之间的比值定义为接触力系数。计算得耦合体系中墩柱的惯性力系数达到2.175左右，防撞装置的惯性力系数达到2.125左右，接触力系数达到1.340左右。Abstract: The indoor wave force test on the coupling system of single column pier and self-floating anti-collision device was carried out. The AQWA numerical model was verified and calibrated by the test results. According to the distribution of wave pressure on the structure, the corresponding load and the structural hydrodynamic coefficient were extracted by Morison formula. Considering the influencing factors such as wave height, wave period, section form, size of anti-collision device and self-floating ratio of device, the quantitative relationship between force coefficient and relevant factors was established. The test results show that the motion of the self-floating device produces radiation wave, which makes the wave pressure of the pier larger. The ratio between the contact force and the wave force can be defined as the contact force coefficient. The calculated results show that the inertia force coefficient of the pier is about 2.175, the inertia force coefficient of the anti-collision device is about 2.125, and the contact force coefficient is about 1.340.
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图 14 墩柱X向接触力-时程曲线
Figure 14. Time history curve of pier column contact force on X-direction
图 16 防撞装置横剖面压强极坐标图
Figure 16. Polar diagram of pressure in cross section of anti-collision device
图 20 墩柱惯性力系数
${C_{\rm{M}}}$ 与波高系数KH关系Figure 20. Relationship between
${C_{\rm{M}}}$ of pier and KH
图 21 墩柱惯性力系数
${C_{\rm{M}}}$ 与周期系数KT关系Figure 21. Relationship between
${C_{\rm{M}}}$ of pier and KT
图 22 墩柱惯性力系数
${C_{\rm{M}}}$ 与尺寸系数KD关系Figure 22. Relationship between
${C_{\rm{M}}}$ of pier and KD
图 23 墩柱惯性力系数
${C_{\rm{M}}}$ 与自浮比关系Figure 23. Relationship between
${C_{\rm{M}}}$ of pier and self-floating ratio of device
图 24 装置惯性力系数
${C{\rm{_M}}}$ 与波高系数KH关系Figure 24. Relationship between
${C_{\rm{M}}}$ of device and KH
图 25 装置惯性力系数
${C{\rm{_M}}}$ 与周期系数KT关系Figure 25. Relationship between
${C_{\rm{M}}}$ of device and KT
图 26 装置惯性力系数
${C_{\rm{M}}}$ 与尺寸系数KD关系Figure 26. Relationship between
${C_{\rm{M}}}$ of device and KD
图 27 装置惯性力系数
${C_{\rm{M}}}$ 与自浮比关系Figure 27. Relationship between
${C_{\rm{M}}}$ and self-floating ratio of device
图 28 接触力系数
${\xi _{\rm{F}}}$ 与波高系数KH关系Figure 28. Relationship between
${\xi _{\rm{F}}}$ and KH
图 29 接触力系数
${\xi _{\rm{F}}}$ 与周期系数KT关系Figure 29. Relationship between
${\xi _{\rm{F}}}$ and KT
图 30 接触力系数
${\xi _{\rm{F}}}$ 与尺寸系数KD关系Figure 30. Relationship between
${\xi _{\rm{F}}}$ and KD
图 31 接触力系数
${\xi _{\rm{F}}}$ 与装置自浮比关系Figure 31. Relationship between
${\xi _{\rm{F}}}$ and self-floating ratio of device表 1 墩柱-防撞装置迎浪面接触力
Table 1. Contact force of pier column with anti-collision device
波浪 接触力/N H0.04
T1.20H0.06
T1.20H0.08
T1.20H0.06
T1.15H0.06
T1.06矩0.3 6.477 7.543 9.018 9.153 9.986 矩0.5 7.884 8.597 10.152 10.089 12.146 方0.5 6.521 8.016 9.278 9.451 10.057 圆0.5 3.058 4.898 5.277 5.223 5.910 
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表 2 数值计算与公式计算的误差分析
Table 2. Error analysis of numerical calculation and formula calculation
内容 数值计算 公式计算 相对误差 墩柱X向波浪力/kN 306.827 298.562 −2.694 装置X向波浪力/kN 35.751 33.458 −6.414 墩柱X向接触力/kN 418.584 441.543 5.485
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