Seismic behavior and design method of an innovative replaceable-on-site steel bridge pier

被引：0
|
作者：
Lü Y. [1 ]
Guo Z. [1 ,2 ]
Liu Y. [1 ,2 ]
Huang Q. [1 ,2 ]
机构：
[1] College of Civil Engineering, Huaqiao University, Xiamen
[2] Key Laboratory for Structural Engineering and Disaster Prevention of Fujian Province, Xiamen
来源：
Zhongnan Daxue Xuebao (Ziran Kexue Ban)/Journal of Central South University (Science and Technology) | 2019年 / 50卷 / 08期
基金：
中国国家自然科学基金;
关键词：
Bridge engineering; Finite element analysis; Repairable-on-site after earthquake; Seismic performance; Steel bridge piers;
D O I：
10.11817/j.issn.1672-7207.2019.08.024
中图分类号：
学科分类号：
摘要：
To achieve rapid restoration of performance and functionality of bridge structures after earthquakes, a replaceable-on-site steel (RSS) bridge pier with replaceable steel slit dampers was developed. To investigate the influence of axial compression ratio, effective slenderness ratio and damper strength on the seismic behavior of the specimens, the finite element model (FEM) of RSS bridge pier was constructed with ABAQUS under low cyclic reversed loading. The load bearing mechanism was further analyzed, and a formula was proposed to calculate the flexural bearing capacity of RSS bridge pier. The results show that the designed RSS bridge pier has superior deformation capacity and stable load-carrying capacity. The plastic damage concentrates only on the steel slit dampers at the large displacement angles, while the main structure and connecting parts remain nearly elastic. Therefore, repairable-on-site after earthquake can be achieved. The calculation result obtained from the proposed formula is in good agreement with the numerical simulation result. © 2019, Central South University Press. All right reserved.
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页码：1960 / 1970
页数：10
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