Study On The Effect Of Floor Opening On Seismic Behavior Of Irregular Structures

In this paper,the influence of the irregular structure model on the seismic response is analyzed for the change of the position of the floor of the irregular floor,the form of the floor opening,and the different floors.On the software side,the model was established by using SAP2000 and Midas Building respectively.The dynamic response analysis of the five structural models was carried out.The working mechanism of the structure of the floor was studied theoretically.The building cycle and its related parameters were obtained.Shear force and relative stiffness,horizontal displacement and the corresponding displacement angle,etc.,analysis and summary of the structure under different models of seismic effectiveness of the pros and cons.In this paper,the influence of the irregular structure model on the seismic response is analyzed for the change of the position of the floor of the irregular floor,the form of the floor opening,and the different floors.On the software side,the model was established by using SAP2000 and Midas Building respectively.The dynamic response analysis of the five structural models was carried out.The working mechanism of the structure of the floor was studied theoretically.The building cycle and its related parameters were obtained.Shear force and relative stiffness,horizontal displacement and the corresponding displacement angle,etc.,analysis and summary of the structure under different models of seismic effectiveness of the pros and cons.The results show that the structure of the inter-layer displacement and the corresponding inter laminar displacement angle are very large when the hole is opened in the floor,and the pushover analysis is carried out.The structure of the structure can not find the performance point,theoretically that the structural design is unreasonable,that is,there is a problem in the design level,poor seismic performance,the structure should avoid corner openings;structure of the upper hole damage is less than the bottom of the hole And in the structure of the upper part of the opening rate of about20 percent when the appropriate location of the floor hole can significantly reduce the structural cycle,inter-layer displacement and the corresponding layer displacement angle,easy to know the appropriate location after opening The anti-lateral stiffness and seismic performance of the structure are improved,showing better seismic performance.