基于ABAQUS的高层框筒结构减震性能分析研究
发布时间：2019-06-15 04:06
【摘要】：随着各种建筑阻尼器的产生,建筑减震技术得到了快速发展。为研究新型的复合金属阻尼器在高层框筒结构中的减震效果,本文利用PKPM、SAP2000、 ABAQUS等软件,对安装有复合金属阻尼器的高层框筒结构进行地震响应模拟分析,通过弹塑性模拟分析,发现金属阻尼器应用在高层框筒结构中可以起到有效的减震作用。论文具体研究内容如下： 1、论文利用PKPM软件建立无阻尼器的高层框筒结构模型,利用转换程序将此模型转换成ETABS模型,再将ETABS模型导入到SAP2000中,在SAP2000中完善模型,利用SAP2000中的线性分析功能对完善后的模型进行线性地震响应分析。 2、为解决ABAQUS建模的繁琐性,利用PKPM软件建模的方便性,论文应用MATLAB语言编写程序,将PKPM中建立的高层框筒结构模型读写到ABAQUS中,研究出了一套不用直接在ABAQUS中建模的结构弹塑性地震动响应分析方法。 3、论文在PKPM中建立了无阻尼器的高层框筒结构模型,将此模型读取到ABAQUS,然后在ABAQUS中增加阻尼器、完善模型,进行弹塑性地震响应分析。通过弹塑性地震响应分析,发现加设金属阻尼器的高层框筒结构在地震响应下的层问位移角、层位移及核心筒的损伤程度与未加设金属阻尼器的高层框筒结构对比而言均有大幅度的减小,说明金属阻尼器在高层框筒结构中具有较好的减震效果。 综上所述,通过本文对高层框筒结构的地震动响应模拟分析可知,设置金属阻尼器可以有效的减小结构在7度罕遇地震作用下的响应,保证结构的层间位移角保持在规范规定的限值之内。同时文中提及的将PKPM中模型读取到ABAQUS中的程序,省去了在ABAQUS中直接建模的繁琐过程,为以后该类结构的分析提供了方便。
[Abstract]:With the emergence of various building dampers, building damping technology has been developed rapidly. In order to study the shock absorption effect of a new type of composite metal dampers in high-rise frame-tube structures, this paper uses PKPM,SAP2000, ABAQUS and other software to simulate and analyze the seismic response of high-rise frame-tube structures with composite metal dampers. Through elastic-plastic simulation analysis, it is found that metal dampers can play an effective role in shock absorption of high-rise frame-tube structures. The specific research contents of this paper are as follows: 1. The high-rise frame-tube structure model without dampers is established by using PKPM software, the model is transformed into ETABS model by conversion program, then the ETABS model is imported into SAP2000, the model is perfected in SAP2000, and the linear analysis function of SAP2000 is used to analyze the linear seismic response of the improved model. 2. In order to solve the triviality of ABAQUS modeling and the convenience of PKPM software modeling, the high-rise frame-tube structure model established in PKPM is read and written into ABAQUS by MATLAB language, and a set of elastic-plastic ground motion response analysis method of structure without modeling directly in ABAQUS is developed. 3. In this paper, a high-rise frame-tube structure model without dampers is established in PKPM. The model is read to ABAQUS, and then the dampers are added to ABAQUS to perfect the model, and the elastic-plastic seismic response analysis is carried out. Through the elastic-plastic seismic response analysis, it is found that the displacement angle, the layer displacement and the damage degree of the core tube of the high-rise frame-tube structure with metal dampers are greatly reduced compared with those of the high-rise frame-tube structure without metal dampers, which indicates that the metal dampers have a better damping effect in the high-rise frame-tube structures. To sum up, through the simulation analysis of the ground motion response of the high-rise frame-tube structure in this paper, it can be seen that the metal dampers can effectively reduce the response of the structure under the rare earthquake of 7 degrees, and ensure that the interstory displacement angle of the structure is kept within the limit value specified in the code. At the same time, the program of reading the model from PKPM to ABAQUS saves the tedious process of modeling directly in ABAQUS, and provides convenience for the analysis of this kind of structure in the future.
【学位授予单位】：西南大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TU973.31
本文编号：2499950
[Abstract]:With the emergence of various building dampers, building damping technology has been developed rapidly. In order to study the shock absorption effect of a new type of composite metal dampers in high-rise frame-tube structures, this paper uses PKPM,SAP2000, ABAQUS and other software to simulate and analyze the seismic response of high-rise frame-tube structures with composite metal dampers. Through elastic-plastic simulation analysis, it is found that metal dampers can play an effective role in shock absorption of high-rise frame-tube structures. The specific research contents of this paper are as follows: 1. The high-rise frame-tube structure model without dampers is established by using PKPM software, the model is transformed into ETABS model by conversion program, then the ETABS model is imported into SAP2000, the model is perfected in SAP2000, and the linear analysis function of SAP2000 is used to analyze the linear seismic response of the improved model. 2. In order to solve the triviality of ABAQUS modeling and the convenience of PKPM software modeling, the high-rise frame-tube structure model established in PKPM is read and written into ABAQUS by MATLAB language, and a set of elastic-plastic ground motion response analysis method of structure without modeling directly in ABAQUS is developed. 3. In this paper, a high-rise frame-tube structure model without dampers is established in PKPM. The model is read to ABAQUS, and then the dampers are added to ABAQUS to perfect the model, and the elastic-plastic seismic response analysis is carried out. Through the elastic-plastic seismic response analysis, it is found that the displacement angle, the layer displacement and the damage degree of the core tube of the high-rise frame-tube structure with metal dampers are greatly reduced compared with those of the high-rise frame-tube structure without metal dampers, which indicates that the metal dampers have a better damping effect in the high-rise frame-tube structures. To sum up, through the simulation analysis of the ground motion response of the high-rise frame-tube structure in this paper, it can be seen that the metal dampers can effectively reduce the response of the structure under the rare earthquake of 7 degrees, and ensure that the interstory displacement angle of the structure is kept within the limit value specified in the code. At the same time, the program of reading the model from PKPM to ABAQUS saves the tedious process of modeling directly in ABAQUS, and provides convenience for the analysis of this kind of structure in the future.
【学位授予单位】：西南大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TU973.31
【参考文献】
相关期刊论文 前1条
1 干洪;胡建安;;大底盘框架结构的减震性能分析[J];安徽建筑工业学院学报(自然科学版);2012年04期
，本文编号：2499950
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