›› 2011, Vol. 32 ›› Issue (12): 3618-3622.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Comparison of practical calculation for torsional vibration of embedded foundations and experiments

LIU Zhi-jiu1, 2, SHANG Shou-ping1, XU Jian3   

  1. 1. College of Civil Engineering, Hunan University, Changsha 410082, China; 2. College of Civil Engineering, Central South University, Changsha 410083, China; 3.Machine Building Group Corporation of China, Beijing 100080, China
  • Received:2011-06-23 Online:2011-12-10 Published:2011-12-13

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Abstract: The practical calculation formulas for torsional vibration of embedded lump foundations were established based on the elastic half-space theory and state-of-the-art results of comprehensive experimental and numerical calculation by using equation equivalence method. Exerting impulsive load to embedded lump foundation of 0.5 m×0.5 m and 1.0 m×0.5 m with pendulum hammer to make foundations happen free torsional vibration in pit of 20 m×10 m×4 m respectively, collecting its vibration response, the results of experiment are compared to the results of calculation performed with practical calculation formulas. The advantages of the formulas are clear concept and simple calculation. It is practical for power equipment lumped foundation of arbitrarily shaped and arbitrarily embedded lumped foundations. It has referential significance to the calculation of seismic response of structural engineering.

Key words: lump foundation, torsional vibration, elastic half-space theory, equation equivalence method, dynamic response

CLC Number: 

  • TU 435
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