分散式钢棒混凝土柱抗震性能对比试验研究
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摘要
钢骨混凝土柱具有良好的抗震性能,但其在高层建筑结构中施工复杂,为此,基于核心区钢骨含钢量相同的原则提出了新型分散式钢棒混凝土柱。为研究分散式钢棒混凝土柱的抗震性能,对2组各3个不同核心材料钢骨混凝土柱在指定试验轴压比下进行了水平低周反复荷载试验。通过试验得到的荷载-位移曲线,对比分析了不同核心材料的钢骨混凝土柱耗能和骨架曲线的差异。初步试验结果表明分散式钢棒核心钢骨混凝土柱的抗震性能良好。
Steel reinforced concrete(SRC) columns have good seismic performance,which are difficult to construct on high-rise buildings.Based on the same steel contain rate of the core area,a new type SRC columns with distributed steel bars was proposed.In order to study the seismic performance of this new type of columns,experiments on two groups(each group has three specimens) SRC columns with different material in the core area on specific axial compression ratio under low cyclic loads were carried out.Based on experimental study,the loading-displacement hysteretic curves were measured,and the behavior of energy dissipation and skeleton curves of six specimens were analyzed.It was observed from the results that SRC columns with distributed steel bars have good seismic performance.
Steel reinforced concrete(SRC) columns have good seismic performance,which are difficult to construct on high-rise buildings.Based on the same steel contain rate of the core area,a new type SRC columns with distributed steel bars was proposed.In order to study the seismic performance of this new type of columns,experiments on two groups(each group has three specimens) SRC columns with different material in the core area on specific axial compression ratio under low cyclic loads were carried out.Based on experimental study,the loading-displacement hysteretic curves were measured,and the behavior of energy dissipation and skeleton curves of six specimens were analyzed.It was observed from the results that SRC columns with distributed steel bars have good seismic performance.
引文
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[5]赵松林,彭水力,周定.一种土木工程用分散式钢棒连接结构:中国,ZL201020277939.X[P].2011-3-30.
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[2]李宏男,赵衍刚.日本新潟县中越大地震震害调查及分析[J].自然灾害学报,2005,14(1):165-174.
[3]卜楠楠.国贸三期钢骨混凝土组合结构施工技术[J].施工技术,2010,39(10):89-92.
[4]赵松林,彭水力,周定.分散式钢棒混凝土柱:中国,ZL201020277937.0[P].2011-3-30.
[5]赵松林,彭水力,周定.一种土木工程用分散式钢棒连接结构:中国,ZL201020277939.X[P].2011-3-30.
[6]JGJ138—2001型钢混凝土组合结构技术规程[S].北京:中国建筑工业出版社,2002.
[7]GB50010—2010混凝土结构设计规范[S].北京:中国建筑工业出版社,2011.
[8]ZHENG WENZHONG,JI JING.Dynamic performance ofangle steel concrete columns under low cyclic loading-I:experimental study[J].Earthquake Engineering andEngineering Vibration,2008,7(1):67-75.
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