| 基于ABAQUS高层剪力墙结构的有限元建模及其振动台试验验证 |
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| 引用本文： | 苏宁粉,信卓,徐亚洲,白国良,秦朝刚.基于ABAQUS高层剪力墙结构的有限元建模及其振动台试验验证[J].世界地震工程,2019,35(4):050-59. |
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| 作者姓名： | 苏宁粉 信卓 徐亚洲 白国良 秦朝刚 |
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| 作者单位： | 西安建筑科技大学 土木工程学院, 西安 710055 |
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| 摘 要： | 采用ABAQUS建立12层剪力墙结构的有限元模型，利用该结构1/5缩尺模型振动台试验时预留试块的材性试验结果及相似关系，确定相应原型结构材料的性能参数，将试验参数和我国混凝土结构设计规范给出的混凝土单轴受拉/压应力-应变关系曲线相结合，确定ABAQUS模型中混凝土损伤塑性模型所需的应力-应变参数；将试验参数和张劲公式法相结合，确定ABAQUS模型中混凝土损伤塑性模型所需的损伤因子参数。对比有限元分析结果和振动台试验结果，验证参数设置的有效性。ABAQUS有限元分析和振动台试验所得原型结构前三阶振型和自振周期相差很小，说明ABAQUS模型和参数设置能够反映并用于计算实际结构的弹性响应。ABAQUS有限元分析得到的结构损伤情况与试验模型的损伤情况基本一致；结构的顶点加速度曲线和滞回曲线等响应的有限元分析结果与试验结果在多遇地震作用下基本吻合，但由于振动台试验累积损伤的影响，两者的差异随着地震波幅值的增大而逐渐增大；ABAQUS有限元分析得到的位移包络曲线与剪力墙结构弯曲变形的特点相符。以上弹塑性分析结果进一步表明了ABAQUS模型和参数设置能够很好地模拟结构在地震作用下的响应。
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| 关 键 词： | 数值模拟 振动台试验 试验混凝土损伤塑性模型 |
Finite element modeling of high-rise shear wall structure based on ABAQUS and its verification with shaking table test |
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| SU Ningfen,XIN Zhuo,XU Yazhou,BAI Guoliang,QIN Chaogang.Finite element modeling of high-rise shear wall structure based on ABAQUS and its verification with shaking table test[J].World Information On Earthquake Engineering,2019,35(4):050-59. |
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| Authors: | SU Ningfen XIN Zhuo XU Yazhou BAI Guoliang QIN Chaogang |
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| Institution: | School of Civil Engineering, Xi’an University of Architecture & Technology, Xi’an 710055, China |
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| Abstract: | A finite element model of a 12-story shear wall structure was built by using ABAQUS, in which the parameters of the concrete damage plasticity model were considered by incorporating the constitutive relationship given by the Chinese Code for Design of Concrete Structure and formula method proposed by Zhang jin. Specifically, the performance parameters of the materials of the corresponding prototype structure were determined by the material test of the 1/5 scale shaking table test and the law of similitude. The accuracy of this parameter setting method was verified by comparing the results from the finite element analysis and shaking table test. There is very small difference in the first three modes of vibration between the results from ABAQUS numerical simulation and shaking table test, which indicates the numerical analysis model can be used to calculate the elastic responses of the actual structure. The structural damage obtained by ABAQUS finite element analysis is basically the same as that of the experiment. The roof displacement and the hysteretic curves from the finite element analysis agree with those from the test for the frequent earthquake action, while the difference between the finite element analysis results and experimental results increases gradually with the increase of earthquake intensity. The displacement envelope curves obtained from ABAQUS finite element analysis agree with the bending deformation characteristics of shear wall structures. The above elastoplastic analysis results show that the ABAQUS model and parameter setting methods can simulate the seismic responses of the structure reasonably well. |
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| Keywords: | numerical simulation shaking table test concrete damage plasticity model |
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