摘要
新型斜柱转换结构改善了传统斜柱转换结构的抗震性能。为了研究新型斜柱转换结构在考虑粘结滑移时的静力力学特征,利用ABAQUS建立3组共6个有限元模型。采用三个不同的轴压比,每个轴压比两个模型,其中一个型钢与混凝土之间建立非线性弹簧模拟粘结滑移作用,另一个完全嵌固忽略粘结滑移作用。对比分析表明:在静力加载作用下,考虑型钢混凝土粘结滑移的模型相对忽略粘结滑移作用的模型,其荷载位移曲线有较明显的下降段,更为符合实际情况,可以在实际工程中应用此方法进行模拟。
The seismic performance of the new inclined column transfer structure can be improved.In order to analyze the static mechanical characteristics of the new inclined column transition structure considering bond slip,this paper analyses three groups of six finite element models by ABAQUS.Three different axial compression ratios were used,two models for each axial compression ratio.A nonlinear spring was proposed to simulate bond slip between one section of steel and concrete,while another was completely imbedded which ignores bond slip.The comparative analysis shows that under the static loading,the model considering the bond slip of steel reinforced concrete will ignore the bond slip,and its load displacement curve has a more obvious descending section,which is more in line with the actual situation,so this method can be used to simulate practical projects.
作者
张季阳
范余辉
朱勇超
吴洪梅
郑田洪
刘博
ZHANG Jiyang;FAN Yuhui;ZHU Yongchao;WU Hongmei;ZH ENG Tianhong;LIU Bo(Space Structure Research Center(SSRC)of Guishou Unitersity,Guiyang,Guizhou 550025,China)
出处
《水利与建筑工程学报》
2020年第4期99-104,110,共7页
Journal of Water Resources and Architectural Engineering
基金
国家自然科学基金资助项目(51468007)
贵州中建建筑科研设计院有限公司研究项目“既有房屋基础托柱转换的理论研究”([2019]01号)
中建三局第三建设工程有限责任公司研究项目“地库顶板加固组合型钢支撑设计与研究”([2020]01号)。
关键词
新型斜柱转换结构
粘结滑移
数值模拟
轴压比
new inclined column transfer structure
bond slip
numerical simulation
axial compression ratios
