Seismic Performance Of Steel Frames With Embedded Wallboard Based On Equivalent Slant Supports Model

Fabricated steel frame with lightweight, high strength, good seismicperformance, a high degree of industrialization, green, is to adapt the ideal structureof the housing industry, and its envelope structure is commonly used to facilitateon-site installation block light wall. Studies have shown that the reliable connectionof embedded enclosure wall panels and steel frame can help to improve thestructure of the overall lateral stiffness and bearing capacity. At present embeddedin the wall panels and steel frame structure collaborative performance commonlyused means of experiment and finite element simulation to be studied. And testingmethods have some limitations, finite element simulation modeling is cumbersomeas steel frame and embedded wallboard work together complexly. Therefore asimplified model is an urgent need for embedded siding steel frame structure. Onthe other hand, with the assembly embedded in the wall panels of steel framestructures widely used, it is necessary to study the seismic performance. In view ofthis, we use the finite element software ANSYS to put forward practical simplifiedmodel for the embedded siding steel frame, and use the simplified model to analysethe seismic performance of the structure. The main duties include the followingaspects:1) Based on masonry (block) fill walls equivalent single stem model, finiteelement fine model for lightweight blocks embedded wallboard is established, andeffective width formula which is applicable to embedded wallboard steel framestructures of the equivalent single stem model, has been re-fitting on a fine crossaspect ratio of basic parameters, and get the previous test validation.And we have aparameter analysis of the calculation formula of effective width influence.2) Equivalent multi-pole elastic-plastic model for the characteristics oflightweight blocks embedded wallboard deformation under lateral loads and forces isestablished based on the equivalent to the basic idea. And the equivalent rod modelwas validated by using the existing test. And we have a parameter analysis ofeffective width formula equivalent multi-pole model. The practical effective widthtable is given. And proved the feasibility of using the equivalent multi-pole model toanalyse the hysteretic behavior of embedded in the wall panels of steel frameworkstructure under cyclic loading;3) We select a typical steel frame residential and use the equivalent rod elastic-plastic model to studying its seismic performance.we compare and analyse the natural period and mode shape characteristics of the3-8layers of steel frame andconsidering the role of embedded wallboard steel framework. The proposedestimation formula of the multi-storey steel frame structure vibration period isgiven.We select seven ground motion records and have6degrees,7degrees,8degrees of42time history analysis of the6th floor steel frameworkand embedded inwall panels steel frame structure. We compare the different lateral displacement ofthe both under seismic action. Show that the contribution of the embedded wallboardto the overall structure of the anti-lateral under earthquake effect.We suggest that therole of embedded wallboard should be considered in practical engineering and theembedded retaining wall should be decorated reasonably.