Analysis on the seismic performance of deep-water bridge after considering pier nonlinearity

被引：0

作者：

Pang Y. ^{[1
]}

You K. ^{[2
]}

Ouyang H. ^{[1
]}

Yuan W. ^{[2
]}

机构：

[1] Faculty of Engineering, China University of Geoscience, Wuhan

[2] State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji University, Shanghai

来源：

Harbin Gongcheng Daxue Xuebao/Journal of Harbin Engineering University | 2018年 / 39卷 / 07期

关键词：

Concrete; Deep-water bridge; Fluid-structure coupling; Hydrodynamic effect; Pier nonlinearity; Seismic response;

D O I：

10.11990/jheu.201701023

中图分类号：

学科分类号：

摘要：

To study the seismic fluid-structure interaction of a deep-water bridge, an understanding of the pier nonlinearity is not enough. Based on the smeared crack concrete theory, this paper establishes a 3D solid pier column model of deep-water bridges taking into consideration the nonlinearity of the reinforced concrete pier, and the feasibility of the mechanical behavior of a reinforced concrete structure under the action of a simulative earthquake was studied. Based on the abovementioned aspects, to simulate the water-surrounding pier, Φ-U potential fluid element is used, and a finite element model of a deep-water bridge considering the fluid-structure interaction effect and the nonlinearity of pier is established. In addition, the influence of hydrodynamic effect on the deep-water bridge considering pier nonlinearity during different earthquake recurrence periods is researched. The results show that after pier nonlinearity is considered, the vibration properties of the structure are different from those of a linearly elastic structure. Such differences make the influence of hydrodynamic effect on the structure be different from the influence of hydrodynamic effect on a linearly elastic structure. When the nonlinearity of the pier is apparent, the influence caused by the water flowing to the bridge structure is large. © 2018, Editorial Department of Journal of HEU. All right reserved.

引用

页码：1206 / 1211and1226

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