The Seismic Response Analysis And Isolation Of The Steel Straggered Truss Structure

Steel staggered truss structure is a new type of structure system in theimprovement on the basis of the steel frame structure system, the structure is consit ofthe pillar, plane truss and floor composition. The building has no column, truss endsin the peripheral support pillars on, truss in each position is analyzed on the pillars forthe upper and lower alternative arrangement, it can be obtained from two timescolumn of large bay multi-ribbed slab frame, in line with the building use function,and it easy to architectural plane agile arrangement, especially suitable for the need oflarge bay multi-ribbed slab frame stores, hospitals, hotels and other building types,as a new structure systemstructure,it conform to the requirements of the buildingfunction diversification, but also to the acceleration of China’s urban housingindustrialization, standardization process, it has the very broad application prospects.This article mainly introduced the seismic response analysis of the severaltheoretical calculation methods, and on this basis, give a steel staggered truss forengineering as an example,under the use of the large finite element software SAP2000,establish the staggered truss structure model, getting the structure response spectrumanalysis and time history analysis, analysis of the structure under severe earthquake indisplacement and layer displacement angle. The main research contents include：（1） Establish hybrid staggered truss, longitudinal support hybrid staggeredtruss structure and hollow type staggered truss structure system, to calculate theresponse spectrum and time history analysis of the structure under floor horizontaldisplacement and layer displacement angle, get the staggered truss structure seismicresponse. Through the three structural horizontal displacement and layer displacementAngle contrast, and has a preliminary discussion on the truss form and support to theinfluence of the structure stiffness（2） Taking isolation designfor hybrid staggered truss, through the comparisonof the isolated structure and no isolated structure of the natural vibration period, theshear layer, layer displacement angle and acceleration, it is concluded the designsuperiority under the effects of earthquake forces when the hybrid staggered trussstructure takes isolation design...