Billig Abercrombie Consider the lateral displacement of frame analysis of skin e

Consider the lateral displacement of frame analysis of skin effect And central bay cross braces between columns were set up in support of the bay set between columns,Billig Abercrombie, and set the horizontal roof support to form the geometric invariant system, the basic model shown in Figure 1. Structure Analysis of this article with ANSYS program. Frame structure of the finite element model mesh size of the column, capitals elevation, span and wall beams, purlins, support and other components with the layout and size of solid model are the same pedestal with hinged, capitals, and are rigid roof, wall beams, purlins, supporting connection with the main frame are hinged. The main frame and the wall of steel beams, purlins component units using three dimensional finite element analysis of Beam. Basic model M1 finite element model of skin structure in the frame structure model based on the additional pressure plate unit from. The rest of the network including the column size,Billig Abercrombie, member section,Billig Abercrombie, connection etc, the same solid model. Because this is a light steel structure to simplify the overall analysis of housing, so the skin structure modeling, entity model the joints between the board and the board will not be considered. Skin plate and its supporting components (wall beams, purlins) are considered as rigid connections. The pressure plate is equivalent to the orthotropic plate, the first of mining: m moon female born in January 1981 Jian Shuo ¨} t postgraduate Received :2005 -05-1750 of steel No. 6, 2005 Vol 20 No. 82 meters total moon, etc.: to consider the role of the frame lateral skin of the shell element analysis using the plane E2J. This paper to consider on light steel structure housing the load exercise and loads (roofing materials, wall materials, structural components weight), roof loads (roof live load or snow load and fouling load) and wind loads, crane loads not considered in this article. To simplify the analysis, wind load reduced to the level of load applied to the capitals of each column capitals specimens of the left frame. Load value in accordance with the literature [3] and the actual access. Table 3 for the 12m span of three kinds of skin displacement model of the capitals results. Table 312m span of housing displacement em2 capitals Analysis of data from Table 3, we can see the top of the column 3 model is the same span displacement of 2.1 Comparison between the simulation results are gradually reduced, thus indicating that with the skin plate thickness increases, the Mongolian from the skin and does not consider consider Meng Jing Li basket capitals displacement in both cases the skin contrast. . :. ~. . . ~ ', With the increase of skin thickness trends. l ■ ■ ■ Frame Snow Frame 2 Frame 1: {frame 4 of a frame structure; ■ skin structure 212m span displacement of housing compared capitals can be seen from Figure 2, consider the skin effect, the capitals displacement significantly reduced. 2.2 Comparison of different simulation results between the span in order to facilitate analysis,Billig Abercrombie, taking into account skin and the skin does not consider the displacement in both cases the top of the column to compare the difference. Table 1 shows the span of 3 capitals displacement difference. Table 1 span the difference between em from the top of the column displacement data can be seen in Table 1, with the span increases, the difference between the displacement decreases capitals,abercrombie milano Cracks in reinforced concrete s, therefore, the role in this span range Neimeng Pi capitals on the frame lateral control is increasing as the span decreases. Skin panels of different thickness between 2.3 Comparison of simulation results obtained with different thickness of skin paper plate model results were compared, reflecting the skin thickness on the top of the column sideway. Thickness skin structure model shown in Table 2. Table 2 The structural model of skin thickness mm1 frame 1; 2 frame 2; 3 frame 3; 4 Frame 4 displacement map 312m span of the Housing capitals can be seen from Figure 3, this trend is gradually changing leveling off, the early slope of the large, late slope smaller. It can be seen, increasing the skin thickness of the plate will help improve skin effect, but not linearly with the increase of the thickness, but gradually leveled off through the comparative analysis of 3 conclusions can be drawn as follows Conclusion: 1) to consider the role of steel plate in the skin, can effectively reduce the lateral frame. When the cornice high lateral control structure from the top of the column calculations, can bring certain economic benefits. 2) within a certain span, skin effect is the impact on the frame lateral span decreases as the. 3) increase the pressure plate can increase the thickness of the skin effect, but this improvement trend is not linear, but gradually becomes flat.