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《China Rural Water and Hydropower》 2014-03
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A Dynamic Response Analysis of Aqueducts Based on Theories of Deep Equivalent Mechanical Models

XIONG Peng-fei;JIANG Yuan;PENG Gang;College of Civil Engineering and Architecture,Three Gorges University;  
In this paper,aiming at the structure dynamic response of the large-scale aqueducts under water sloshing effects,by structural dynamics and fluid dynamics to simplify the sloshing damping effect between water and slurry wall of the groove,aqueducts equivalent mechanical models are established.With 3DFEM and the timing analysis technique,the dynamic displacement and stress under different discharges are calculated and analyzed.Results show that compared with other directions,transverse dynamic displacement is more significantly affected by the shaking hydrodynamic pressure of water in the aqueduct.Compared with added mass calculation results,computed by equivalent mechanical model of structure dynamic response are varying degrees lower,and horizontal reduction is the most significant of these.In the design of large-sized aqueduct structures,the liquid damping effects of added mass method are taken into account,this paper provides a reference for the practial projects.
【CateGory Index】: TV672.3;TV312
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