[1]刘界鹏,王伟,张小冬.钢筋混凝土与型钢混凝土超短柱的滞回性能试验研究[J].东南大学学报(自然科学版),2009,39(6):1193-1199.[doi:10.3969/j.issn.1001-0505.2009.06.021]
　Liu Jiepeng,Wang Wei,Zhang Xiaodong.Seismic behavior of reinforced-concrete and steel reinforced concrete ultra short columns[J].Journal of Southeast University (Natural Science Edition),2009,39(6):1193-1199.[doi:10.3969/j.issn.1001-0505.2009.06.021]
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钢筋混凝土与型钢混凝土超短柱的滞回性能试验研究()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
39
期数:
2009年第6期
页码:
1193-1199
栏目:
材料科学与工程
出版日期:
2009-11-20

文章信息/Info

Title:
Seismic behavior of reinforced-concrete and steel reinforced concrete ultra short columns
作者:
刘界鹏1; 2;  王伟2;  张小冬1
1 哈尔滨工业大学建筑设计研究院,哈尔滨 150090; 2 哈尔滨工业大学土木工程学院, 哈尔滨 150090
Author(s):
Liu Jiepeng1; 2;  Wang Wei2;  Zhang Xiaodong1
1 Architectural Design and Research Institute, Harbin Institute of Technology, Harbin 150090, China
2 School of Civil Engineering, Harbin Institute of Technology, Harbin 150090, China
关键词:
钢筋混凝土;  型钢混凝土;  超短柱;  分体柱;  剪跨比;  剪力连接件
Keywords:
reinforced-concrete;  steel reinforced-concrete;  ultra short column;  separated columns;  shear span to depth ratio;  shear stud
分类号:
TU528;TU317
DOI:
10.3969/j.issn.1001-0505.2009.06.021
摘要:
进行了4个钢筋混凝土(RC)超短柱、4个型钢混凝土(SRC)超短柱和6个RC分体柱的滞回性能试验研究.8个超短柱的剪跨比为1; 6个分体柱的剪跨比为2.4.试验结果表明,RC超短柱的变形能力不满足现行抗震规范要求.不设剪力连接件的SRC超短柱的破坏模式为黏结破坏,与RC超短柱相比,其抗剪承载力和变形能力并无明显提高; 设置剪力连接件的SRC超短柱的破坏模式为斜压破坏,其抗剪承载力和变形能力显著提高,但构件的变形能力仍然难以满足现行抗震规范要求.试验结果还表明,在RC超短柱中开缝,形成剪跨比大于2的RC分体柱,可有效提高柱子的延性和变形能力.对于RC分体柱,随轴压比的提高,构件的抗弯承载力提高,但延性和变形能力下降; 当设计轴压比大于0.7时,RC分体柱的变形能力不满足现行抗震规范要求.根据试验结果,提出了SRC超短柱的剪力连接件设计方法和RC分体柱的设计建议.
Abstract:
In this paper, 4 RC(reinforced-concrete)ultra short columns, 4 SRC(steel reinforced-concrete)ultra short columns and 6 separated RC columns were tested under combined constant axial load and cyclic lateral load. The shear span to depth ratio of 8 ultra short columns was 1, and the shear span to depth ratio of 6 separated RC columns was 2.4. The test results indicate that the deformation capacity of RC ultra short columns does not satisfy the requirement in Chinese code for seismic design of buildings. The failure mode of SRC ultra short columns without shear stud is bond failure, and the shear strength and deformationability of SRC ultra short columns without shear stud are not evidently higher than that of RC ultra short columns. The failure mode of SRC ultra short columns with shear stud is diagonal compression failure, and the shear strength and deformation ability of SRC ultra short columns with shear stud are higher than that of RC ultra short columns. Whereas the deformation ability of SRC ultra short columns with shear stud does not satisfy the requirement in Chinese code for seismic design of buildings. The test results also indicate that separating RC ultra short column into separated columns(shear span to depth ratio higher than 2)by gapping longitudinally at the middle of ultra short column can improve the ductility and deformation capacity of the columns effectively. The moment strength of RC separated columns increase with an increase in axial load ratio, while the ductility and deformation capacity of RC separated columns decrease with an increase in axial load ratio. The deformation capacity of RC separated columns does not satisfy the requirement in Chinese code for seismic design of buildings when the design axial load ratio is greater than 0.7. The design method of shear studs of SRC ultra short columns and the design advices of RC separated columns are suggested based on the experimental results.

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备注/Memo

备注/Memo:
作者简介: 刘界鹏(1978—),男,博士,副研究员,liujp@hit.edu.cn.
基金项目: 国家自然科学基金资助项目(50708027).
引文格式: 刘界鹏,王伟,张小冬.钢筋混凝土与型钢混凝土超短柱的滞回性能试验研究[J].东南大学学报:自然科学版,2009,39(6):1193-1199. [doi:10.3969/j.issn.1001-0505.2009.06.021]
更新日期/Last Update: 2009-11-20