Study On The Value Of The Natural Vibration Period Of Concrete Frame Structures

The reinforced concrete frame with a non load bearing wall is one of the most common structural types.In the concrete frame structure design,The influence of the wall on the natural vibration period of the structure is reflected by the non load bearing wall, the value of the coefficient is affected by the calculation result of the earthquake action. Therefore, it is an unavoidable problem in the structure design.Although the technical specification for concrete structures of tall building structures is given, it is still a troubling problem for different conditions.This paper mainly consider the non load bearing wall stiffness effect of frame structure self vibration period.Due to the common design, non load bearing wall quality have been included in the constant load, so this study is not considered,which is more practical significance, but also the main difference between this paper and other documents.This study is based on the results of previous studies expand the analysis object, in the understanding of the non bearing wall frame structure mechanical model based on the selection of equivalent cross strut model.Firstly, the conventional design of reinforced concrete frame structure is carried out by using the mature structure design software PKPM to determine the section size of beam, plate and column.Then by using the finite element software SAP2000 modeling, and the equivalent cross brace model simulation calculation and analysis of infilled wall.In this paper, we take into account the solid clay brick, concrete block, fly ash and steam pressure aerated concrete block, three kinds of bulk materials and a variety of different non load bearing methods,then the model analysis of the model is carried out,non bearing wall along the X, Y direction is analyzed respectively to study the effect on the natural vibration period of frame structure, comparative analysis summary,give three different masonry materials in respectively along the X, Y direction under different space layout the framework of structural natural vibration period of reduction factor reasonable Suggestions.