Seismic Performance Comparison Between Shear Wall Structure And Dispersive Tube Structure By Pushover

Dispersive tube structure has the advantage of large lateral stiffness, Flexible layout,good Space integrity which can be used in high-rise residential buildings. It’s a newstructure with broad application prospects, but it still needs further study in manyaspects. Among them, tube structure constitute by the thin wall. the structure into theelastic-plastic working condition under strong earthquakes. Whether the build has agood Elastic-plastic deformation and Elastic-plastic performance is the key to decideusing it into The engineering practiceIn this paper, according to the civil building common architectural layout plan, theauthor made a comparison of static elastic and static elastoplastic performancebetween main components in shear wall structure and dispersive tube structure bysoftware of Sap2000. Redesign a high-rise residential building in Qingdao from shearwall structure to dispersive tube structure, and make sure the same Concrete dosageand made a comparison of static elastic and static elastoplastic performance betweenthem by software of Etabs、 Sap2000and Push＆Epda. Analyze the Seismicperformance and failure mechanism in rare occurrence earthquake and have acomparison of the index of economy such as dosage of concrete, steel content bySTAT, and explain the reasons for differences.The study found that under the same dosage of concrete, the tube model has theadvantage of large lateral stiffness and good space integrity, flange wall canparticipate in the structure. Vertex displacement and the degree of plastic hinge in tubemodel was better than wall model when crushing appears at the bottom of the wallconcrete. Tube model has good Material utilization and can maintain “Strong columnweak beam” better. Open hole cylinder model and wall with flange model had thealmost same Beam plastic hinge development degree and seismic performance. They both had the advantage of light shear lag effects and large lateral stiffness.In the analysis of engineering example, Shear wall structure and Dispersive tubestructure had the approximate static elastic performance with the same dosage ofconcrete. But when it goes into elastic-plastic state, Dispersive tube structure hadlarger stiffness and better Elastic-plastic performance, the maximum elastoplasticinterlayer displacement angle of Dispersive tube structure was far less than Shear wallstructure, and there are surplus in Dispersive tube structure.After optimize the structure model, make sure a approximate elastoplasticinterlayer displacement angle of the main resistance direction. The elastoplasticinterlayer displacement angle in Shear wall structure was transfinite while satisfied inDispersive tube structure when the structure under the seismic action with45degreeAngle to the main resistance direction. It could reflect Dispersive tube structure haslarger stiffness. Shear wall structure and Dispersive tube structure had theapproximate static elastic performance in the case of "Default eccentric", butDispersive tube structure had a better torsional performance when structure achievedto the destruction of the limit state.Dispersive tube structure had less dosage of concrete and more steel consumption.The steel consumption by calculating of Dispersive tube structure was close to if ofshear wall structure and a preliminary judgment could be made that Amount of steelaccording to structural requirements was greater than according to computing needs.The degree changed from the stringency of structural requirements.It can achieve good results to using Dispersive tube structure into high-riseresidential buildings. To make the analysis applied to practical engineering design,code, technical specification and software should be written and developed accordingto the Mechanical characteristics of Dispersive tube structure...