Analysis On Construction Simulation Of Frame-core Wall Structure With Inclined Columns In The Transfer Story

With the rapid development of economy and technology at home and abroad,the super high-rise buildings tend to be diversified and complicated.In the super high-rise building,the frame core tube structure with inclined column transfer story has gradually be used in the super high-rise buildings.The construction process of super high-rise buildings is relatively less concerned in recent research.With the increasing complexity of super highrise buildings,the vertical deformation of vertical members caused by shrinkage and creep effect and the vertical deformation difference between walls and columns can not be ignored.Therefore,combined with the engineering example,the construction simulation analysis of the structure and the study of the change rule of internal force and deformation results can play a guiding role in the design and construction of the same kind of complex super highrise buildings.In this paper,an engineering example of a frame core tube structure with two inclined column transfer stories and 178.55 m high structure is selected as the calculation model.The main stress system of the structure is "steel reinforced concrete frame + reinforced concrete core tube(including steel section)+ two inclined column transfer stories".The construction simulation analysis of the structure is carried out by using ETABS finite element software.The main research contents are as follows: in the construction stage,the calculation method(one-time loading method,construction simulation loading method),concrete shrinage and creep,and the influence of concrete age on the vertical deformation and internal force of the vertical members and transfer members of the structure;in the usinging stage,the shrinkage and creep conditions are considered respectively The vertical deformation development law and internal force development law of vertical components and transfer components;the vertical deformation difference distribution law along the floor and the development law with time in the use stage of the structure.The conclusions of this paper are as follows: for the frame core tube structure with inclined column transfer story,it is necessary to carry out construction simulation analysis,otherwise,the internal force of structural members under the action of gravity will be underestimated to affect the safety of the structure;in the construction simulation calculation,the influence of concrete shrinkage and creep on the vertical deformation and internal force of the structure can not be ignored,considering the shrinkage and creep will slightly increase the vertical deformation and internal force of the structure;after entering the structural use stage The vertical deformation and internal force of the structure will continue to develop,and the internal force will continue to increase,but the increasing range will slow down;the vertical deformation difference between the walls and columns will also increase with time,but the increasing range will also slow down.With the passage of time,the vertical deformation difference will make the shear force and bending moment of the frame beam near the column increase,and the shear force and bending moment near the wall decrease;measures can be taken from the design and construction aspects to control the impact of the vertical deformation difference.