| 楼板开角缝实现RC框架“强柱弱梁”效果的有限元分析 |
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| 引用本文： | 王兴国,单明岳,葛楠,苏幼坡. 楼板开角缝实现RC框架“强柱弱梁”效果的有限元分析[J]. 地震工程与工程振动, 2012, 32(1): 121-127 |
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| 作者姓名： | 王兴国 单明岳 葛楠 苏幼坡 |
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| 作者单位： | 河北联合大学建筑工程学院,河北唐山063009;河北省地震工程研究中心,河北唐山063009 |
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| 基金项目： | 国家自然科学基金项目(51078124) |
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| 摘 要： | 利用有限元软件ADINA对一栋6层现浇钢筋混凝土框架结构的梁柱节点做了拟静力分析与地震动力反应分析,并对普通梁柱节点与周围楼板设角缝节点的结果对比。分析计算结果表明,对于普通梁柱节点,在梁柱节点处采用开角缝的措施之后,梁受力主筋屈服明显提前,柱混凝土裂缝明显减少,梁、柱塑性铰出现时间间隔增加。首层柱柱脚处塑性铰的出现延后,更加接近总体机制破坏。
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| 关 键 词： | 梁柱节点 强柱弱梁 塑性铰 屈服 楼板开角缝 |
Finite element analysis of efficiency of slot-cutting around RC frame joint for "strong column and weak beam" |
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| WANG Xingguo , SHAN Mingyue , GE Nan , SU Youpo. Finite element analysis of efficiency of slot-cutting around RC frame joint for "strong column and weak beam"[J]. Earthquake Engineering and Engineering Vibration, 2012, 32(1): 121-127 |
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| Authors: | WANG Xingguo SHAN Mingyue GE Nan SU Youpo |
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| Affiliation: | 1,2(1.College of Civil Engineering and Architecture,Hebei United University,Tangshan 063009,China;2.Earthquake Engineering Research Center of Hebei Province,Tangshan 063009,China) |
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| Abstract: | A numerical quasi-static and dynamic earthquake response model was established with ADINA software for beam-column interior joint in a reinforced concrete frame.The results for traditional joint specified in design code and that for the joint with slot around were compared.It is shown that for the joint with slot around,the yielding time of beam reinforced bar will shift to an earlier time,while the number of cracks on column becomes less.The time interval between the occurrence of plastic pivot on beam and on column becomes longer,which exhibits a failure type closer to the beam-pivot mode. |
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| Keywords: | beam-column joint strong column and weak beam plastic pivot yield slot in floor |
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