VISCO-ELASTO-PLASTIC STRESS-DISPLACEMENT ANALYSIS OF MEMBRANE STRUCTURES FOR SIMULATING CONSTRUCTION PROCESS -Curved membrane structure considering the self weight of membrane -

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Publication year 2001
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Title VISCO-ELASTO-PLASTIC STRESS-DISPLACEMENT ANALYSIS OF MEMBRANE STRUCTURES FOR SIMULATING CONSTRUCTION PROCESS -Curved membrane structure considering the self weight of membrane -
Author Shiro Kato,Tatsuya Yoshino
Summary The present paper discusses a simulation for fixing the membranes and introducing initial tensions into curved membranes at construction sites. In this analysis,the cutting pattern of membrane is obtained by the method proposed previously. And the deformations by self weight of membranes are considered. In the present analysis eight-node isoprametric curved elements are applied to membranes structures to simulate the effects of creep and relaxation. The visco-elasto-plastic constitutive equation for the present analysis is adopted based on the previous researches of the previous authors. From the results,the stresses of the membranes under fixing became small compared with the results of the previous paper. But, as well as the previous paper,the necessity of the cutting patterning method considering the visco-elasto・plastic characteristics of membrane material is shown.