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GONG Yao-qing, BAO Shi-hua, LONG Yu-qiu. FREE VIBRATION OF TALL BUILDING TUBE-IN-TUBE STRUCTURES WITH VARIABLE CROSS-SECTION ON SEMI-LNFINITE ELASTIC SUBGRADE[J]. Engineering Mechanics, 1999, 16(3): 7-14.
Citation: GONG Yao-qing, BAO Shi-hua, LONG Yu-qiu. FREE VIBRATION OF TALL BUILDING TUBE-IN-TUBE STRUCTURES WITH VARIABLE CROSS-SECTION ON SEMI-LNFINITE ELASTIC SUBGRADE[J]. Engineering Mechanics, 1999, 16(3): 7-14.
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FREE VIBRATION OF TALL BUILDING TUBE-IN-TUBE STRUCTURES WITH VARIABLE CROSS-SECTION ON SEMI-LNFINITE ELASTIC SUBGRADE

  • Dept of Civil Engineering, Tsinghua University, 100084

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  • Received Date: October 02, 1997
  • Revised Date: December 31, 1899
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    • Abstract
  • In the paper a new semi-analytical method for three-dimensional free vibration analysis of interactions between semi-infinite elastic subgrade and foundation and superstructure of tall buildings is developed. The various subgrade stiffness parameters for evaluating elastic strain energy stored in subgrade are inferred by using the principle of energy equivalency, This method is applied to analyze the tube-in-tube reinforced concrete structure adopted by Guangdong Guoji Building. The numerical results obtained are compared with that of model test.
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