Analysis In Vertical Temperature Deformation And Gravity Second-order Effect About The Pagoda Of NanChang HongZhou

To enlarge nanchang's history and culture and improve nanchang's investmentand traveling's environment, so that construct HongZhou pagoda in nanchang.TheHongZhou Pagoda is Buddha Pagoda of reinforced concrete,but the structural form ofthe building is different from the common reinforced concrete structure. The mostmanifestment in structure is that the structure floor area is reduced from down toup,that shear wall is staggered in the outer tube.what's more,eccentric distance andheight are bigger, so it is diffcult to design the structure.How to consider the influenceof vertical temperatural effect which leaded by solar radiation and gravitysecond-order effect(P-â–³effect)which caused by vertical temperatural effect instructural design is a very complicated problem,which also is one of the vitallyimportant research topics in similar structure design.The paper launchs to research on the condition of the background,compute waysof temperature load in this paper is defined and the temperature difference betweenthe solar orientation and the shady orientation of the pagoda structure under thedifferent orientation of the solar radiatiom is obtained through summarizing some oldways in the paper.Then through simplifying rationally the real structure and analysisthe vertical temperatural effect of the pagoda structure under the solar radiation by thefinite element program of ANSYS,gets the whole deform law of the pagoda structureunder the solar radiation and the internal force variety regulation follow the story highat the same position and the same story high with different position of the outertube,the beam between the outer tube and the slab near the transferm joint,which arethe major member of the pagoda structure;secondly, in the thesis,the major member'sinternal force variety regulation under the gravity function is also obtained;finally, themajor member's internal force law after consider P-â–³effect which is caused bygravity act on the deform is gone on regression analysis,then through contrast theobtained results,some conclusions which are about on how to consider the verticaltemperatual effect under the solar radiation and the P-â–³effect are obtained,these conclusions are valuable and helpful for the pagoda structure design and the similarstructure design on the condition of considering vertical temperatual effect andP-â–³effect.