论文部分内容阅读
为研究超高层建筑翼墙性能,首先依据有限元理论建立了基于桩筏基础和上部结构共同作用的整体三维有限元模型,分别比较了模型中设置翼墙和不设置翼墙两种情况下整体结构的周期、最大层间位移角、巨柱及核心筒等关键构件内力和差异变形。其次,为考虑混凝土长期荷载下开裂及徐变的影响,对地下室翼墙刚度进行适当折减,获得翼墙刚度折减前后结构性能的变化情况。在上述分析基础上,进一步考虑了基底桩弹簧约束和施工过程模拟等因素对翼墙、柱、核心筒等关键构件内力的影响。
In order to study the performance of the wing wall of super high-rise building, an overall three-dimensional finite element model based on the interaction between piled raft foundation and superstructure was established based on the finite element theory. The two models were compared in the model with and without the wing wall The period of the structure, the maximum inter-story drift angle, the internal forces and the differential deformation of the key components such as the pillar and the core tube. Secondly, in order to consider the influence of cracking and creep under long-term load of concrete, the stiffness of the basement wing wall is appropriately reduced, and the structural performance change before and after the stiffness reduction of the wing wall is obtained. Based on the above analysis, further consideration is given to the influence of the foundation pile spring restraint and the construction process simulation on the internal forces of the key components such as the wing wall, the column and the core tube.