基于ADINA的CSRC节点抗震性能有限元模拟
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摘要
进行了3个核心型钢混凝土(CSRC)节点在低周反复荷载作用下的抗震性能试验,研究了核心型钢在节点区的截断锚固形式对试件抗震性能的影响。详细介绍了采用大型通用有限元软件ADINA对CSRC节点试件进行非线性有限元模拟的关键技术,通过该文完成的3个试件对程序进行验证。计算结果表明,该文使用的有限元模型可以合理的反应CSRC节点的受力特征,计算所得的材料应力状态、混凝土裂缝发展趋势和试件骨架曲线等结果与试验吻合良好。在此基础上分析了核心型钢在节点区的锚固构造、混凝土强度和强节点系数等参数对CSRC节点性能的影响。参数分析表明:强节点系数降低,试件强度增加,但变形能力减小。核心型钢在节点区的锚固面积增加,试件强度和变形能力增加。该文成果可为CSRC结构的工程实践提供参考。
Three core steel reinforced concrete(CSRC) joints were tested under cyclic loading to investigate the effect of truncation and embedded details of core steel in joint core to the seismic performance of the specimens.The FEM method used in this paper to simulate the CSRC joints with ADINA was introduced and three tested CSRC joints were simulated to verify the program.It was indicated that the calculated results,including the stress state of material,crack development of concrete and the skeleton curves of specimens,showed good agreement with test results.Based on the program verification,nonlinear finite element analysis of the joints with different anchor details of core steel,concrete strength and strength ratio of joint to beam were carried out.Parameter analysis indicated that the strength of specimens increased with the increase of strength ratio of joint to beam,while the deformation ability of specimens decreased.When the anchor area of core steel in joint core increased,the strength and deformation ability of specimens increased.This paper can provide references for the engineering practice of CSRC structures.
Three core steel reinforced concrete(CSRC) joints were tested under cyclic loading to investigate the effect of truncation and embedded details of core steel in joint core to the seismic performance of the specimens.The FEM method used in this paper to simulate the CSRC joints with ADINA was introduced and three tested CSRC joints were simulated to verify the program.It was indicated that the calculated results,including the stress state of material,crack development of concrete and the skeleton curves of specimens,showed good agreement with test results.Based on the program verification,nonlinear finite element analysis of the joints with different anchor details of core steel,concrete strength and strength ratio of joint to beam were carried out.Parameter analysis indicated that the strength of specimens increased with the increase of strength ratio of joint to beam,while the deformation ability of specimens decreased.When the anchor area of core steel in joint core increased,the strength and deformation ability of specimens increased.This paper can provide references for the engineering practice of CSRC structures.
引文
[1]郭子雄,刘阳,黄秋来.高轴压比核心型钢混凝土柱抗震性能试验研究[J].哈尔滨工业大学学报,2007,39(增2):167―171.Guo Zixiong,Liu Yang,Huang Qiulai.Experimentalstudy on seismic behavior of core steel reinforcedconcrete columns[J].Journal of Harbin Institute ofTechnology,2007,39(S.2):167―171.(in Chinese)
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[3]刘阳,郭子雄,张志伟.核心型钢混凝土柱的轴压比限值试验研究[J].地震工程与工程振动,2008,28(3):82―86.Liu Yang,Guo Zixiong,Zhang Zhiwei.Limit value ofaxial compression ratio for CSRC columns[J].Earthquake Engineering and Engineering Vibration,2008,28(3):82―86.(in Chinese)
[4]Richard Liew J Y,Teo T H,Shanmugam N E.Compositejoints subjected to reversal of loading-Part 1:experimental study[J].Journal of Constructional SteelResearch,2004,60:221―246.
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[7]宗周红,葛继平,杨强跃.反复荷载作用下方钢管混凝土柱与钢梁连接节点非线性有限元分析[J].建筑结构学报,2006,27(2):75―81.Zong Zhouhong,Ge Jiping,Yang Qiangyue.Nonlinearfinite element analysis of the concrete filled square steeltubular column to steel beam connections underlow-cycle reversed loading[J].Journal of BuildingStructures,2006,27(2):75―81.(in Chinese)
[8]聂建国,秦凯,肖岩.方钢管混凝土柱节点的试验研究及非线性有限元分析[J].工程力学,2006,23(11):99―115.Nie Jianguo,Qin Kai,Xiao Yan.Experimentalinvestigation and nonlinear finite element analysis on thebehavior of concrete-filled square steel tubular columnconnections[J].Engineering Mechanics,2006,23(11):99―115.(in Chinese)
[9]申红侠,顾强.钢梁-钢筋混凝土柱梁柱中节点非线性有限元模拟[J].工程力学,2009,26(1):37―42,48.Shen Hongxia,Gu Qiang.Nonliear finite elementmodeling of interior RCS beam-column connections[J].Engineering Mechanics,2009,26(1):37―42,48.(inChinese)
[10]刘阳,郭子雄,黄群贤.不同构造形式的CSRC节点变形性能试验研究[J].工程力学,2010,27(10):173―181.Liu Yang,Guo Zixiong,Huang Qunxian.Experimentalstudy of deformation performance of CSRC joints withdifferent seismic details[J].Engineering Mechanics,2010,27(10):173―181.(in Chinese)
[11]江见鲸.钢筋混凝土结构非线性有限元分析[M].西安:陕西科学技术出版社,1998.Jiang Jianjing.Nonlinear finite element analysis ofreinforced concrete structures[M].Xi’an:Shaanxi Pressof Science and Technology,1998.(in Chinese)
[12]ADINA theory and modeling guide:ARD02-7[DB/OL].ADINA R&D Inc.USA,2002.
[2]Junichi Sakai,Chiaki Matsui,Kouichi Minami.Earthquake resistant properties of core steel composite[C].Proceedings of the 12th World Conference onEarthquake Engrg.Sydney,Paper ID:1280,2000.
[3]刘阳,郭子雄,张志伟.核心型钢混凝土柱的轴压比限值试验研究[J].地震工程与工程振动,2008,28(3):82―86.Liu Yang,Guo Zixiong,Zhang Zhiwei.Limit value ofaxial compression ratio for CSRC columns[J].Earthquake Engineering and Engineering Vibration,2008,28(3):82―86.(in Chinese)
[4]Richard Liew J Y,Teo T H,Shanmugam N E.Compositejoints subjected to reversal of loading-Part 1:experimental study[J].Journal of Constructional SteelResearch,2004,60:221―246.
[5]Kitano A,Goto Y,Joh O.Experimental study on shearresistance of SRC column and steel beams frameconstructed by simplified method[C].Proceedings of the14th World Conference on Earthquake Engineering.Beijing,Paper No.05-06-0125,2008.
[6]郭子雄,庄云,黄群贤,刘阳.SRC柱-RC梁组合件抗震性能试验研究[J].建筑结构学报,2009,30(2):39―46.Guo Zixiong,Zhuang Yun,Huang Qunxian,Liu Yang.Experimental study on seismic behaviors of SRCcolumn-RC beam hybrid subassemblies[J].Journal ofBuilding Structures,2009,30(2):39―46.(in Chinese)
[7]宗周红,葛继平,杨强跃.反复荷载作用下方钢管混凝土柱与钢梁连接节点非线性有限元分析[J].建筑结构学报,2006,27(2):75―81.Zong Zhouhong,Ge Jiping,Yang Qiangyue.Nonlinearfinite element analysis of the concrete filled square steeltubular column to steel beam connections underlow-cycle reversed loading[J].Journal of BuildingStructures,2006,27(2):75―81.(in Chinese)
[8]聂建国,秦凯,肖岩.方钢管混凝土柱节点的试验研究及非线性有限元分析[J].工程力学,2006,23(11):99―115.Nie Jianguo,Qin Kai,Xiao Yan.Experimentalinvestigation and nonlinear finite element analysis on thebehavior of concrete-filled square steel tubular columnconnections[J].Engineering Mechanics,2006,23(11):99―115.(in Chinese)
[9]申红侠,顾强.钢梁-钢筋混凝土柱梁柱中节点非线性有限元模拟[J].工程力学,2009,26(1):37―42,48.Shen Hongxia,Gu Qiang.Nonliear finite elementmodeling of interior RCS beam-column connections[J].Engineering Mechanics,2009,26(1):37―42,48.(inChinese)
[10]刘阳,郭子雄,黄群贤.不同构造形式的CSRC节点变形性能试验研究[J].工程力学,2010,27(10):173―181.Liu Yang,Guo Zixiong,Huang Qunxian.Experimentalstudy of deformation performance of CSRC joints withdifferent seismic details[J].Engineering Mechanics,2010,27(10):173―181.(in Chinese)
[11]江见鲸.钢筋混凝土结构非线性有限元分析[M].西安:陕西科学技术出版社,1998.Jiang Jianjing.Nonlinear finite element analysis ofreinforced concrete structures[M].Xi’an:Shaanxi Pressof Science and Technology,1998.(in Chinese)
[12]ADINA theory and modeling guide:ARD02-7[DB/OL].ADINA R&D Inc.USA,2002.
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