| 不同结构形式墩柱耗能及变形能力的比较 |
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| 引用本文： | 臧华,涂永明.不同结构形式墩柱耗能及变形能力的比较[J].特种结构,2009,26(2):60-63. |
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| 作者姓名： | 臧华 涂永明 |
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| 作者单位： | 1. 南京工程学院,建筑工程学院,211167
2. 东南大学,土木工程学院,南京,210096 |
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| 基金项目： | 国家自然科学基金，教育部博士点基金新教师项目 |
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| 摘 要： | 为考察钢筋混凝土桥墩和钢管混凝土桥墩的抗震性能,基于相同的含钢率和轴压比,首次进行了两种不同结构形式的桥墩拟静力对比试验（试件包括2个钢管混凝土墩柱和1个钢筋混凝土墩柱）,并考察了轴压比对钢管混凝土桥墩抗震性能的影响。试验结果表明,相同含钢率和轴力情况下,钢管混凝土墩柱的耗能能力和变形能力都优于钢筋混凝土墩柱,前者的耗能能力约为后者的4.5倍,变形能力约为后者的1.4倍;随着轴压比的增大,钢管混凝土墩柱延性有所下降。
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| 关 键 词： | 钢管混凝土 墩柱 耗能 变形 对比试验 |
Comparison on Energy Dissipation and Deformation Capacity of Different Types of Bridge Piers |
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| ZangHua,Tu Yongming.Comparison on Energy Dissipation and Deformation Capacity of Different Types of Bridge Piers[J].Special Structures,2009,26(2):60-63. |
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| Authors: | ZangHua Tu Yongming |
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| Affiliation: | ( 1. School of Civil Engineering, Nanjing Institute of Technology, 211167, China; 2. School of Civil Engineering, Southeast University, Nanjing 210096, China) |
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| Abstract: | In order to contrast the seismic behaviors of concrete-filled circular steel bridge piers and reinforced concrete piers, an experiment of two concrete-filled circular steel bridge pier specimens and one reinforced concrete pier specimen was firstly carried out subjected to reversed cyclic lateral loading combined with constant axial compression force. The results show that concrete-filled circular steel bridge piers can provide better behaviors of energy dissipation and deformation than reinforced concrete piers on condition of the same axial compression force and equal amount of steel. The energy dissipation capacity of the former is 4.5 times more than that of the latter and the deformation capacity of the former is 1.4 times as mush as that of the latter. The results also indicate that the ductility of concretefilled circular steel bridge piers decreases with axial load ratio increasing. |
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| Keywords: | Concrete-filled circular steel tube Pier Energy dissipation Deformation Comparison experiment |
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