【作者】 张伟；

【导师】 荣传新；

【作者基本信息】 安徽理工大学 ， 建筑与土木工程， 2016， 硕士

【摘要】 随着国家经济的不断发展,高层框架一剪力墙结构己然成为一种渐渐兴起的主要结构形式,然而风荷载影响和抗震设计方面,此类结构的研究还不完善。为了分析某高层建筑在动荷载(风荷载和地震荷载)作用下力学特性,本文采用理论分析和数值计算的方法,对高层建筑结构进行了静力分析、模态分析、风荷载作用下的响应分析和地震荷载作用下弹性时程分析。结果表明,当选取合肥地区50年一遇风压0.351(N／m2作为基本风压作用在结构上时,分别用有限元模拟方法和2012荷载规范方法计算。通过对计算结果的对比发现,建筑物的最大位移、底部剪力和底部弯矩的计算结果都十分接近,并且满足规范要求。两种方法计算所得到的结构底部剪力和底部弯矩相差9%左右,在允许误差范围内。上述结果充分证明了有限元模拟方法能够准确给出结构的可靠性,同时证明了本文所涉及结构是安全可靠的。另外,应用弹性时程分析方法对地震荷载作用下结构进行分析时,得出沿着结构高度方向同一轴梁柱节点的变形趋势是大致相同,最大振幅发生在高度35m左右,与抗震规范比较,结构的最大振幅满足规范要求,结构的安全性能可靠。更多还原

【Abstract】 With the continuous development of the national economy, high-rise frame shear wall structure has become a kind of main structural form, however, the research of this kind of structure is not perfect in the aspect of wind load effect and seismic design. To analysis of a high-rise building in dynamic mechanical properties under the wind load and earthquake load. In this paper, the theoretical analysis and numerical calculation method, structure of high-rise building were static analysis, modal analysis, elastic dynamic analysis under wind load response analysis and seismic load.Results show that, when the selected Hefei once in 50 years, wind pressure 0.35kN/m2 as the basic wind pressure on the structure, respectively, with finite element method (FEM) and 2012 load code method calculation. Through the comparison of the calculated results, it is found that the maximum displacement of the building, the bottom shear and the bottom moment of the calculation results are very close, and to meet the requirements of the specification. Two methods of calculating the structure of the bottom shear and the bottom bending moment difference of about 9%, in the allowable error range. The above results fully prove that the finite element simulation method can accurately give the reliability of the structure, and it is proved that the structure is safe and reliable. In addition, by the elastic time history analysis method to analyze the structures under seismic load, it is concluded that along the height direction of the structure deformation trend with an axle beam column joints is roughly the same, maximum amplitude occurs in about height 35m, and code for seismic design of buildings, the maximum amplitude of the structure meet the specification requirements, the safety performance of the structure is reliable.更多还原