Seismic Analysis Of Supertall Partially Frame-Supported Shear Wall Structures With Jump Floor

Super-high-rise partially frame-supported shear wall structure refers to the fact that the height of the structure exceeds the limit of the structural design code,and the vertical components such as the structural shear wall do not fall to the ground,which leads to adverse seismic effects in the calculation of the structure.If there are many large openings in the floor above the transfer floor,the earthquake damage of the structure will be aggravated.Therefore,it is very necessary to study and analyze the seismic performance of frame-supported shear wall structures with large floor holes.This paper an even layer of local in shenzhen baoan area floor open hole part of the frame supported shear wall structure for the engineering case,and according to the relevant design codes in our country,establishing different models for the corresponding analysis,from different levels and different phases of seismic components,to analyze the dynamic response characteristics of such structures as well as the damage law of development.The main research is as follows:（1）In the study,YJK and ETABS software were used to establish structural models respectively to study the dynamic characteristics and overall indexes of frame-supported shear walls with partial diaphora under earthquake,and to judge the key positions of such structures through this.（2）Use the idea of performance-based design to formulate the performance-based goals of the whole structure,so that each component can meet its performance level.Enenvelope the calculation results of frequent earthquakes with the results of medium and large earthquakes under each performance goal,so that the key components and weaknesses of the structure are strengthened to meet the seismic goal.（3）The finite element analysis of stress and damage of key components such as transfer floor and open floor slab is carried out by using the internal forces of medium and large earthquakes of equivalent elasticity.It is also proved that each index of the components can meet the seismic requirements of the structure after the strengthening of equivalent elastic analysis.（4）The dynamic elastoplastic analysis of the rare earthquake of the frame-supported shear wall structure of part of the thermocline was carried out by SAUSE software.The overall dynamic characteristics and energy consumption of the structure under different seismic waves are studied,and suggestions for the damage of the transfer floor and floor slab are put forward.The results show that through the equivalent elastic analysis of the structure at each stage and time-history analysis under rare earthquakes,the structure basically meets the performance-based design requirements of "not damaged under small earthquakes,repairable under medium earthquakes and not collapsed under large earthquakes".Each component of the structure meets the requirements of strength and energy consumption as well as the corresponding performance level.In this paper,the key parts of the transfer floor and the open floor slab are analyzed separately.The results show that the stress concentration of the open floor slab is obvious under the earthquake action.With the addition of section steel,the seismic performance of the transfer component is further optimized,and the damage is small under rare earthquakes,which meets the performance target requirements.