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Scheme And Finite Element Analysis Of Cellular Network Structure On Coal Gasification Factory

Posted on:2011-02-14Degree:MasterType:Thesis
Country:ChinaCandidate:K WangFull Text:PDF
GTID:2132360305481806Subject:Structural engineering
Abstract/Summary:PDF Full Text Request
Gasification technology is the basement of coal-based chemicals, coal-based liquid fuel, combined cycle power generation, multi-generation systems, hydrogen, fuel cells and so on,is a common technology,key technology and leading technology in these industries, has important strategic significance in economic and national security in China. The design of Connection in high-level link coal gasification plant is the key issues in the design of coal gasification plant. Because of the height of this large plant and the weight of main equipment, the design of connecting structure and the analysis of the interaction of plant equipment is very important.In this paper, cellular network supporting structure as the main equipment support structure in place of the thick concrete plant and steel truss. The first is the design of cross-section parameters of Cellular network component, the next is the finite element analysis of the vertical load conditions of Cellular network supporting structure and checking the Section size of its component, then optimized the cross section of internal framework and put forward a recommended cross-section, the last is the space time history of earthquake analysis on Cellular network supporting structure.Focused on the applicability, advantages of Cellular network supporting structure and the affect of different seismic waves on the structure and the comparison of the eight most dangerous seismic performance points, and extract the maximum displacement under earthquake as a design reference.After the analysis, the main results are summarized as follows:1,After the analysis of the cellular network supporting structure,the structure is feasible.The upper and lower of Supporting structure is coordinated, the frame beam section size can be reduced,honeycomb mesh supporting structure can be better fabricated.2,In different seismic waves, the response of the structures is varied.No matter vertical or horizontal seismic wave Seismic wave, plant vertically earthquake is the weakest direction.3,Although the location of eight nodes and their unit is symmetrical, but the response to earthquake is different. This difference was mainly due to the direction of seismic waves and the very structure itself,what more, the distinctive of ways of constraints also affects the structure.Important conclusions of the paper are summarized as follows:1,the support of the equipment can be changed, to adopt Cellular network supporting structure is feasible.After changing,the whole is coherent, the loaded situation of the internal framework of the beam has been improved significantly,achieved Fabricated.2, Using Cellular network components replace concrete slabs and cross beam, the structure and equipment's seismic effect are improved in different degree.Under the different seismic waves, the structural displacement response with time is also varied. To vertical displacement,the impact of horizontal earthquake seismic waves is greater than the vertical one. Although the position of the most dangerous eight points is symmetrical, the seismic responses are not always the same in the earthquake loads.The results of the paper can be referenced by counterparts. The achievements have guiding significance and reference value in reducing the seismic risk of the plants, in increasing the reliability of the plants, in generalization of the plants in China...
Keywords/Search Tags:Fabricated, Honeycomb mesh, Time history analysis
PDF Full Text Request
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