Research On Performance Of Hight-rise Building With Staggered Floors

With the research and development greatly in the high building,human People are not only seeking safety and comfort for buildings,but structural designers have also chosen to include consumers' preferences in structural design,more and more person pay attention to indoor environment,so the style in building are tending to complexity and functionalization.High-rise strewn building will provides more space for user and give more convenience by changeful space and strewn with functional areas.Under the normal condition,the double floor which in strewn are higher than beam depth(more than 500mm),it will produce any short perpendicular bearing members in the structure which influences floor force and shape change.Under the horizontal load and seismic force,the middle short components are easy to generate stress concentration in the strewn building which improve the probability in the shear failure.It explains that why is important in design,the reinforcement scheme and earthquake.This paper list three modeling by the way of finite element method and contrast the traditional to strewn structure which arranges different place and analyzes uniform influence.Then from the shear failure,it puts forward scheme which is used to diagonal bracing in the strewn building and research the influence of it.Mainly following:(1)It introduces the shape and force in these building,then list the development and research state at home and abroad.On the basis of design in anti-knock and principle to summarize,the formula of the bottom shear force,vibration decomposition reaction spectrum and dynamic time method are derived.(2)With the three model in modal analysis,vibration-type decomposition response spectrum analysis and dynamic analysis.And then get the date about modal cycle,maximum interlayer displacement,maximum displacement of floor and shear of column,by contrast to these date,analyze and discuss mechanical behavior under the earthquake and different influence in the different assign position.(3)Under the horizontal force and earthquake,these structure will absorb tremendous shear force.So plenty of structure designer come up with many plan aim to solve it.Such as arrange shear walls in reasonable state,haunched beams and adapt the new reinforced concrete column.This paper mainly talk the influence of diagonal bracing in these strewn structure.By the elastic-plastic analysis in the two different structure(ordinary or with add brace)and write down the sequence when the plastichinges start to appear.So,it will present the the sequence of structure destroy and process.