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LOAD TRANSFER MODEL AND DESIGN METHOD OF ECCENTRIC IN-PLANE BEAM-THIN WALL JOINT
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摘要: 基于8个钢筋混凝土梁-薄墙平面内连接节点模型试验结果,结合非线性有限元参数分析,详细研究了节点受力性能和传力机理,提出了梁-薄墙平面内偏心连接节点的宏观受力模型和两类拉-压杆传力模型,在此基础上,进一步给出了梁-薄墙平面内偏心连接节点的模型计算和设计方法;通过与试验结果对比表明,采用该方法对梁-薄墙偏心节点进行设计是合理和可行的。
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关键词:
- 钢筋混凝土梁-薄墙平面内连接节点 /
- 偏心节点 /
- 宏观受力模型 /
- 拉-压杆模型 /
- 设计方法
Abstract: Based on the test results of eight eccentric in-plane beam-thin wall joints,combined with the nonlinear finite element parametric analyses,the mechanical behavior and force-transferring mechanism of the joint were analyzed. Then,the macro force and strut-and-tie transfer models of eccentric in-plane beam-thin wall joints were proposed. Based on the above research,the calculation and design methods were derived,which are effective and practical,compared with the test results. -
[2] 王志军,柏洁,白绍良.钢筋混凝土梁-薄墙肢平面内偏心连接节点试验研究[J].工业建筑,2010,40(1):39-45. 黄璐,王志军,李平昌,等.梁-薄墙肢梁筋直锚节点试验[J].重庆大学学报,2005,28(2):114-118. [3] 过镇海,时旭东.钢筋混凝土原理和分析[M].北京:清华大学出版社,2003:5. [4] Schlaich J,Schafer K,Jennewein M.Toward a Consistant Designof Structural Concrete[J]. Prestressed Concrete Institute Journal,1987,32(3):74-150. [5] Tjen N Tjhin,Daniel A Kuchma. Integrated Analysis and DesignTool for the Strut-and-Tie Method[J]. Engineering Structures,2007,29(11):3042-3052. [6] 柏洁,王志军.考虑粘结滑移的 RC 锚固区段修正本构关系[J].西安建筑科技大学学报:自然科学版,2009,14(4):502-507. [7] Jeeho Lee,Gregory L. Fenves. Plastic-damage Model for CyclicLoading of Concrete Structures[J]. Journal of Engineering Mechanics.1998:892-900. [8] ACI 31808 Building Code Requirements for Structural Concrete and Commentary[S]. American Concrete Institute,2007. [9] Arthur H Nilson,David Darwin,Charles W Dolan. Design of Concrete Structures[M]:13 th edition. McGraw-Hill,2003. -
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