水中桥塔波浪作用动力模型试验相似方法与模型设计方法

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摘要针对跨海桥梁桥塔结构波浪作用动力模型试验研究方法，通过分析水中结构动力模型试验相似原理，提出了桥塔结构动力模型试验的相似方法与模型设计方法。基于此，设计制作了一大型跨海斜拉桥桥塔结构的动力模型，并利用该试验模型进行了结构动力特性试验和波浪作用动力响应试验。动力特性试验结果表明：试验测得的结构主要自振频率与原型结构设计自振频率相接近，试验模型结构能较好地模拟原型结构自振特性。波浪作用下模型结构的基底受力和运动响应与原型结构相应的数值计算结果大致吻合。试验结果验证了提出的模型试验相似方法与模型设计方法的可行性，对跨海桥梁结构的水弹性模型试验研究具有应用和借鉴意义。

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	韦承勋1
	周道成2
	张健3
	薛思思2

关键词 ：桥塔结构, 波浪作用, 动力模型试验, 相似方法, 模型设计

Abstract：Aiming at the study method of wave action dynamic model test of bridge tower structure of a cross sea bridge, the similarity method and model design method for dynamic model test of bridge tower structure were proposed by analyzing the similarity principle of dynamic model test of underwater structure. Then, a dynamic model of tower structure of a large-scale sea-crossing cable-stayed bridge was designed and manufactured, and structural dynamic characteristics tests and wave action dynamic response tests were conducted with the test model. Dynamic model test results showed that the structure main natural frequency measured with tests is close to that designed for the original structure, the test model structure can better simulate natural vibration characteristics of the original structure; base forces and dynamic responses of the model structure agree well with the corresponding numerical results of the original structure; the test results verify the feasibility of the proposed model test similarity method and model design method, they have application and reference significance for the hydro-elastic model test research of cross sea bridge structure.

Key words： bridge tower wave action dynamic model test similarity method model design

收稿日期: 2019-09-04 出版日期: 2021-04-15

引用本文:

韦承勋1，周道成2，张健3，薛思思2. 水中桥塔波浪作用动力模型试验相似方法与模型设计方法[J]. 振动与冲击, 2021, 40(7): 119-125.
WEI Chengxun1, ZHOU Daocheng2, ZHANG Jian3, XUE Sisi2. Similarity method and model design method for dynamic model tests of bridge tower under wave action. JOURNAL OF VIBRATION AND SHOCK, 2021, 40(7): 119-125.

链接本文:

http://jvs.sjtu.edu.cn/CN/ 或 http://jvs.sjtu.edu.cn/CN/Y2021/V40/I7/119

［1］林皋. 研究拱坝震动的模型相似律［J］. 水利学报, 1958(1): 80-104.
LIN Gao. The model similarity rate of arch dam vibration is studied［J］. Journal of Hydraulic Engineering, 1958(1): 80-104.
［2］夏颂佑,张楚芳,张鸣岐. 动态结构模型相似条件若干问题的探讨［J］. 河海大学学报(自然科学版), 1980(1): 61-74.
XIA Songyou, ZHANG Chufang, ZHANG Mingqi. Discussion on similarity conditions of dynamic structure model ［J］. Journal of Hohai University (Natural Science), 1980(1): 61-74.［3］迟世春,林少书. 结构动力模型试验相似理论及其验证［J］. 世界地震工程, 2004, 20(4): 11-20.
CHI Shichun, LIN Shaoshu. Validation of similitude laws for dynamic structural model test［J］. World Earthquake Engineering, 2004, 20(4): 11-20.
［4］杨树标,李荣华,刘建平,等. 振动台试验模型和原型相似关系的理论研究［J］. 河北工程大学学报(自然科学版), 2007, 24(1): 8-11.
YANG Shubiao, LI Ronghua, LIU Jianping, et al. Theoretical study on similarity relation of vibroplatform test model and original mold［J］. Journal of Hebei University of Engineering (Natural Science Edition), 2007, 24(1): 8-11.
［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］朱彤. 结构动力模型相似问题及结构动力试验技术研究［D］. 大连: 大连理工大学, 2004.
［7］杨建民,肖龙飞,盛振邦. 海洋工程水动力学试验研究［M］. 上海：上海交通大学出版社, 2008.
［8］张兆顺,催桂香. 流体力学［M］. 北京: 清华大学出版社, 2006.
［9］WEI C X, ZHOU D C, OU J P. Wave forces and moments on a gravity pier foundation［J］. Journal of Shanghai Jiao Tong University (Science), 2019, 24(3): 305-312.
［10］LIU S X, LI Y C, LI G W. Wave current forces on the pile group of base foundation for the East Sea Bridge, China［J］. Journal of Hydrodynamics （Ser. B）, 2007, 19(6): 661-670.
［11］兰雅梅,薛雷平,刘桦,等. 东海大桥桥梁桩柱承台水动力模型试验研究，第一部分:作用于单个小尺度桩柱上的波流力［J］. 水动力学研究与进展(A辑), 2004, 19(6): 753-758.
LAN Yamei, XUE Leiping, LIU Hua, et al. Experimental studies on hydrodynamic loads on piles and slab of Donghai Bridge， part I :hydrodynamic forces on a single pile in wave-current combinations ［J］. Journal of Hydrodynamics(Ser. A), 2004, 19(6): 753-758.
［12］兰雅梅,刘桦,皇甫熹,等. 东海大桥桥梁桩柱承台水动力模型试验研究，第二部分:作用于群桩及承台上的波流力［J］. 水动力学研究与进展(A辑), 2005, 20(3): 332-339.
LAN Yamei, LIU Hua, HUANGFU Xi, et al. Experimental studies on hydrodynamic loads on piles and slab of Donghai Bridge， part II :hydrodynamic forces on pile array and slab in wave-current combinations ［J］. Journal of Hydrodynamics(Ser. A), 2004, 19(6): 753-758.
［13］ZHENG X Y, LI H, RONG W, et al. Joint earthquake and wave action on the monopile wind turbine foundation: an experimental study［J］. Marine Structures, 2015, 44: 125-141.
［14］李玉刚,任年鑫,莫仁杰,等. 风浪联合作用下海上风机动力响应模型试验设计方法［J］. 实验室科学, 2016, 19(6): 1-4.
LI Yugang, REN Nianxin, MO Renjie, et al. Model test design method of dynamic response for offshore wind turbines under the combined action of wind and wave ［J］. Laboratory Science, 2016, 19(6): 1-4.
［15］陈国建. 箱式超大型浮体的水弹性模型试验［J］. 海洋工程, 2003, 21(3): 1-5.
CHEN Guojian. Experimental research on hydroelasticity on box-typed flexible VLFS in waves ［J］. Ocean Engineering, 2003, 21(3): 1-5.
［16］LIU C G, ZHANG S B, HAO E T. Joint earthquake, wave and current action on the pile group cable-stayed bridge tower foundation: an experimental study［J］. Applied Ocean Research, 2017, 63: 157-169.
［17］NEWMAN J N, LEE C H. Boundary-element methods in offshore structure analysis ［J］. Journal of Offshore Mechanics and Arctic Engineering, 2002, 124(2): 81-89.
［18］WEI C X, ZHOU D C, OU J P. Calculation method of wave forces on large round-ended caisson foundation［J］. Journal of Shanghai Jiao Tong University (Science), 2019, 24(2): 184-189.