高层建筑结构边节点抗震性能非线性有限元分析
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摘要
为了研究高层建筑结构边节点的抗震性能,采用有限元软件ABAQUS对7个高强混凝土梁柱边节点进行了分析,得到了各构件的滞回曲线和骨架曲线,并将骨架曲线与试验结果进行了对比分析。在此基础上,研究了高强混凝土梁柱边节点在不同轴压比、节点核心区的混凝土强度等级和柱中混凝土在梁中的延伸长度等影响因素下的抗震性能。结果表明,节点承载能力和变形性能随各影响因素变化的规律与试验结果吻合较好。
To study the seismic performance of exterior joints in tall-building structure,7 exterior beam-column joints with high-strength concrete were analyzed by software ABAQUS.And hysteretic curves and skeleton curves of exterior joints were obtained.The analytical results of skeleton curves were compared with experimental results.Thereafter,the influence of parameters on seismic performance of this kind of joints were investigated,which included axial compression ratio,concrete strength grade in exterior joints core region and extending length of column′ s concrete into beams.The results show that the rules for the bearing capacity and deformation of the joints with various parameters match well with the experimental results.
To study the seismic performance of exterior joints in tall-building structure,7 exterior beam-column joints with high-strength concrete were analyzed by software ABAQUS.And hysteretic curves and skeleton curves of exterior joints were obtained.The analytical results of skeleton curves were compared with experimental results.Thereafter,the influence of parameters on seismic performance of this kind of joints were investigated,which included axial compression ratio,concrete strength grade in exterior joints core region and extending length of column′ s concrete into beams.The results show that the rules for the bearing capacity and deformation of the joints with various parameters match well with the experimental results.
引文
[1]李英民,刘建伟.钢筋混凝土框架夹心节点抗震性能试验研究[J].建筑结构学报,2010,31(12):74-82.
[2]杨治洪.RC框架夹心节点抗震性能及设计方法研究[D].重庆:重庆大学,2010.
[3]闫维明,侯立群,陈适才,等.双向荷载作用下空间夹心节点受力性能试验研究[J].工程力学,2016,33(5):211-219.
[4]HA G J,KIM J K,CHUNG L.Response of reinforced[J].Magazine of Concrete Research,1992,44(160):175-184.
[5]HA G J,CHO C G.Strengthening of reinforced high-strength concrete beam-column joints using advanced reinforcement details[J].Magazine of Concrete Research,2008,60(7):487-497.
[6]ATTAALLA S A,AGBABIAN M S.Performance of interior beamcolumn joints cast from high strength concrete under seismic loads[J].Advances in Structural Engineering,2004,7(2):147-157.
[7]OUSALEM H,TAKATSU H,ISHIKAWA Y.Seismic testing and performanc e of precast high-strength concrete beam-column joints subjected to high axial tension[J].Journal of Advanced Concrete Technology,2009,7(2):195-204.
[8]LI B,LEONG C L.Experimental and numerical investigations of the seismic behavior of high-strength concrete beam-column joints with column axial load[J].Journal of Structural Engineering,2015,141(9):1-14.
[9]佟景伟,陆海翔,沈珉,等.超高层钢筋混凝土结构不同强度等级混凝土梁柱节点的模型试验与有限元分析[J].试验力学,1998,13(3):356-363.
[10]魏春明,马潇潇,赵星海,等.高层建筑结构边节点抗震性能研究[J].试验力学,2014,29(2):200-206.
[11]李惠,周文松,王震宇,等.约束及无约束泵送高性能与超高性能混凝土力学性能试验研究[J].建筑结构学报,2003,24(5):58-71.
[12]李忠献.工程结构试验理论与技术[M].天津:天津大学出版社,2004:226-234.
[2]杨治洪.RC框架夹心节点抗震性能及设计方法研究[D].重庆:重庆大学,2010.
[3]闫维明,侯立群,陈适才,等.双向荷载作用下空间夹心节点受力性能试验研究[J].工程力学,2016,33(5):211-219.
[4]HA G J,KIM J K,CHUNG L.Response of reinforced[J].Magazine of Concrete Research,1992,44(160):175-184.
[5]HA G J,CHO C G.Strengthening of reinforced high-strength concrete beam-column joints using advanced reinforcement details[J].Magazine of Concrete Research,2008,60(7):487-497.
[6]ATTAALLA S A,AGBABIAN M S.Performance of interior beamcolumn joints cast from high strength concrete under seismic loads[J].Advances in Structural Engineering,2004,7(2):147-157.
[7]OUSALEM H,TAKATSU H,ISHIKAWA Y.Seismic testing and performanc e of precast high-strength concrete beam-column joints subjected to high axial tension[J].Journal of Advanced Concrete Technology,2009,7(2):195-204.
[8]LI B,LEONG C L.Experimental and numerical investigations of the seismic behavior of high-strength concrete beam-column joints with column axial load[J].Journal of Structural Engineering,2015,141(9):1-14.
[9]佟景伟,陆海翔,沈珉,等.超高层钢筋混凝土结构不同强度等级混凝土梁柱节点的模型试验与有限元分析[J].试验力学,1998,13(3):356-363.
[10]魏春明,马潇潇,赵星海,等.高层建筑结构边节点抗震性能研究[J].试验力学,2014,29(2):200-206.
[11]李惠,周文松,王震宇,等.约束及无约束泵送高性能与超高性能混凝土力学性能试验研究[J].建筑结构学报,2003,24(5):58-71.
[12]李忠献.工程结构试验理论与技术[M].天津:天津大学出版社,2004:226-234.