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重力坝动水压力模型试验的数值重构研究

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振动与冲击 ›› 2020, Vol. 39 ›› Issue (10) : 192-197.

论文

#br# 重力坝动水压力模型试验的数值重构研究

王铭明1, 2，陈健云3

作者信息 +

Numerical reconstruction research on hydrodynamic pressure model test for gravity dam

WANG Mingming1, 2,CHEN Jianyun3

Author information +

文章历史 +

摘要

由于试验设备及模型材料的限制，在重力坝动力模型试验中采用在坝体模型上游安置水箱内盛满水的方法模拟重力体-库水系统相互作用的效果存在误差。为此，采用流固耦合模型对重力坝动水压力模型试验进行数值重构分析的方法，研究了用上游水箱中盛满水模拟地震作用下原型库水对坝体动力作用产生误差的原因。研究结果表明，水箱内水体密度及可压缩性是导致试验中坝体-水库系统相互作用效果偏小的两个原因，其水体密度偏小更为主要因素。据此，提出了修正上述误差的三种可行且准确的方法。

Abstract

Due to restrictions on experimental equipment and model material, there is certain error in the dam-reservoir interaction simulated by placing water-filled tank on the upstream side of dam model in the dynamic model test of gravity dam.For this reason, the error analysis was performed by numerical reconstruction of hydrodynamic pressure model test adopting the fluid-solid coupling model.It was found that the water compressibility and its low density are the reason for the error.Among which the water density is smaller is the more important factor.Then three feasible error modified methods were proposed by numerical analysis.

导出引用

王铭明1, 2，陈健云3. #br# 重力坝动水压力模型试验的数值重构研究[J]. 振动与冲击, 2020, 39(10): 192-197

WANG Mingming1, 2,CHEN Jianyun3. Numerical reconstruction research on hydrodynamic pressure model test for gravity dam[J]. Journal of Vibration and Shock, 2020, 39(10): 192-197

参考文献

[1] Harris D W, Snorteland N, Dolen T, Travers F. Shaking table 2-D models of a concrete Gravity dam[J]. Earthquake Engineering and Structural Dynamics, 2000; 29(6):769-87.

[2] J Zhou, G Lin, T Zhu, AD Jefferson, Williams FW. Experimental investigation into seismic fracture of high arch dams[J]. Journal of Structural Engineering (ASCE), 2000; 126(8):926-35.

[3] H Wang, D Li. Experimental study of seismic overloading of large arch dam[J]. Earthquake Engineering and Structural Dynamics, 2006; 35(2):199-216.

[4] A R Ghaemmaghami, M Ghaemian. Experimental seismic investigation of Sefid-rud concrete buttress dam model on shaking table[J]. Earthquake Engineering and Structural Dynamics, 2008; 37(5):809-823.

[5] 林皋, 朱彤, 林蓓. 结构动力模型试验的相似技巧[J]. 大连理工大学学报, 2000, 40(1): 1-8.

LIN Gao, ZHU Tong, LIN Bei. Similarity technique for dynamic structural model test[J]. JOURNAL OF DALIAN UNIVERSITY OF TECHNOLOGY, 2000, 40(1): 1-8.

[6] 范书立. 混凝土重力坝的动力模型破坏试验及可靠性研究[D]. 大连: 大连理工大学, 2008.

[7] 朱彤，林皋，马恒春. 混凝土仿真材料特性及其应用的试验研究[J]. 水力发电学报, 2004(4): 31-37.

ZHU Tong, LIN Gao, MA Hengchun. The test research on properties and applications of emulation concrete material[J]. Journal of Hydroelectric Engineering, 2004, 23(4): 31-37.

[8] 赵锦华. 仿真混凝土的力学性能研究及重力坝的动力模型数值分析[D]. 大连: 大连理工大学, 2007.

[9] E L Wilson, M Khalvati. Finite elements for the dynamic analysis of fluid-solid systems[J]. International Journal for Numerical Methods in Engineering, 1983, 19(11): 1657–1668.

[10] Francesco Parrinello, and Guido Borino. Lagrangian finite element modelling of dam-fluid interaction: Accurate absorbing boundary conditions[J]. Computers and Structures, 2007, 85(6): 11-14.

[11] O C Zienkiewicz, P Bettess. Fluid-structure dynamic interaction and wave forces. An introduction to numerical treatment[J]. International Journal for Numerical Methods in Engineering, 1978, 13(1): 1–16.

[12] 张兆顺, 崔桂香. 流体力学[M]. 北京: 清华大学出版社, 1999.

[13] 刘国勇. 流体力学数值方法[M]. 北京: 冶金工业出版社, 2016.

[14] 王铭明, 陈健云, 范书立. 重力坝地震动水压力的试验研究[J]. 水电能源科学, 2012, (5): 58-61.

WANG Mingming, CHEN Jianyun1, FAN Shuli. Experimental Study on Hydrodynamic Pressure on Gravity Dam on Shaking Table[J]. Journal of hydroelectric engineering, 2012, (5):58-61.

[15] Wang Mingming, Chen Jianyun, Xiao Weirong. Experimental and Numerical Comparative Study on Gravity Dam-Reservoir Coupling System[J]. KSCE Journal of Civil Engineering, 2018, 22(10): 3980-3987.

[16] Westergaard H. M. Water Pressures on Dams during Earthquakes[J]. Transactions of ASCE, 1933, (98): 418-433.

[17] 宫必宁. 重力坝地震动水压力试验研究[J]. 河海大学学报, 1997, 25(1): 98-102.

Gong Bining. Experimental Research on Gravity Dam Hydrodynamic Pressure under Earthquake[J]. JOURNAL OF HOHAI UNIVERSITY, 1997, 25(1): 98-102.

[18] 李德玉, 张伯艳, 王海波, 禹莹. 重力坝坝体-库水相互作用振动台试验研究[J]. 中国水利水电科学研究院学报, 2003, 1(3): 216-220.

LI De-yu, ZHANG Bo-yan, WANG Hai-bo, YU Ying. A shaking table model test on dam-reservoir interaction of gratity dam[J]. Journal of China Institute of Water, 2003, 1(3):216-220.

[19] 高瑞强，宫必宁，郭建平. 坝-水相互作用中水的压缩性影响研究[J]. 水利与建筑工程学报, 2008(1): 106-108.

GAO Rui-qiang, GONG Bi-ning, GUO Jian-ping. Journal of Water Resources and Architectural Engineering[J]. Journal of Water Resources and Architectural Engineering, 2008, 6(1): 106-108.