Seismic performances of precast segmental column under bidirectional earthquake motions: Shake table test and numerical evaluation

被引:80
作者
Li, Chao [1 ]
Bi, Kaiming [1 ]
Hao, Hong [1 ]
机构
[1] Curtin Univ, Ctr Infrastruct Monitoring & Protect, Sch Civil & Mech Engn, Bentley, WA 6102, Australia
基金
澳大利亚研究理事会;
关键词
Precast segmental column; Shake table tests; Bidirectional earthquake motion; Twisting; Shear key; Monolithic column; CONCRETE BRIDGE COLUMNS; PLASTIC-DAMAGE MODEL; CYCLIC RESPONSE; GROUND MOTION; BEHAVIOR; SIMULATION; BARS;
D O I
10.1016/j.engstruct.2019.03.001
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
Precast segmental concrete column, as one of the prefabricated structures used to accelerate the construction speed in the urban areas with heavy traffic, has been more and more widely used recently. Current applications of such structures are mainly limited to the low seismicity areas due to the lack of knowledge on its seismic performances. Recently, extensive research efforts have been made to understand the force-displacement relationship of such columns under quasi-static cyclic loading through experimental and numerical investigations. The behaviours of the column under real dynamic earthquake motions were, however, rarely investigated. Moreover, only the uniaxial motion was considered in the limited shake table tests of such columns despite earthquake excitations have three components in reality. This study carries out shake table tests on the seismic performances of precast segmental concrete column, and bidirectional earthquake motions were used as inputs. For comparison, the behaviours of the traditional cast-in-situ monolithic column were also experimentally investigated and compared with the segmental column. Interestingly, the experimental results showed that significant twisting occurred to the segmental column under the bidirectional earthquake motions. To prevent the adverse twisting response, shear keys between the segments are proposed. The effectiveness of the proposed method is demonstrated through numerical simulations after the model is validated by the experimental results.
引用
收藏
页码:314 / 328
页数:15
相关论文
共 72 条
[21]   Cyclic Load Tests on Self-Centering Concrete Pier with External Dissipators and Enhanced Durability [J].
Guo, Tong ;
Cao, Zhiliang ;
Xu, Zhenkuan ;
Lu, Shuo .
JOURNAL OF STRUCTURAL ENGINEERING, 2016, 142 (01)
[22]  
Hachem M.M., 2003, PERFORMANCE CIRCULAR
[23]  
Hewes J.T., 2002, SEISMIC DESIGN PERFO
[24]   Effects of Aluminum on Hydrogen Solubility and Diffusion in Deformed Fe-Mn Alloys [J].
Hueter, C. ;
Dang, S. ;
Zhang, X. ;
Glensk, A. ;
Spatschek, R. .
ADVANCES IN MATERIALS SCIENCE AND ENGINEERING, 2016, 2016
[25]   Experimental study and numerical simulation of precast segmental bridge columns with semi-rigid connections [J].
Hung, Hsiao-Hui ;
Sung, Yu -Chi ;
Lin, Kuan-Chen ;
Jiang, Chi-Rung ;
Chang, Kuo-Chun .
ENGINEERING STRUCTURES, 2017, 136 :12-25
[26]   Seismic-Resistant Bridge Columns with Ultrahigh-Performance Concrete Segments [J].
Ichikawa, Shota ;
Matsuzaki, Hiroshi ;
Moustafa, Ayman ;
ElGawady, Mohamed A. ;
Kawashima, Kazuhiko .
JOURNAL OF BRIDGE ENGINEERING, 2016, 21 (09)
[27]  
KITAJIMA K, 1992, PROCEEDINGS OF THE TENTH WORLD CONFERENCE ON EARTHQUAKE ENGINEERING, VOLS 1-10, P3019
[28]   Plastic-damage model for cyclic loading of concrete structures [J].
Lee, JH ;
Fenves, GL .
JOURNAL OF ENGINEERING MECHANICS-ASCE, 1998, 124 (08) :892-900
[29]  
Li C, 2017, ADV STRUCT ENG
[30]  
Li C, 2018, B EARTHQUAKE ENG