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Seismic analysis of grouting-in-place reinforced concrete underground channel based on response displacement method

WANG Guixuan,LU Xuhua,ZHAO Jie,WANG Wei(The R&D Center of the Civil Engineering Technology,Dalian University,Dalian 116622,China)  
In this paper,the response displacement method and calculation flow were introduced.The seismic analysis of response displacement method of underground channel with different cross-sections was performed in combination with some concrete power station project.Parameterized implementation method of the channel design analysis process was also introduced,in which the transformation of stress into internal force in channel was achieved by five-node method.The internal force distribution of different cross-section tunnel was researched and analysed,and envelope diagram of inner force in the cross-section of the tunnel was drawn.Reinforcement arrangement scheme was given through the internal force calculation.The regularity obtained from calculation can provide the basis for the design construction of tunnels,and promote the application of response displacement method in the seismic analysis of underground structures.
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