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Mechanics in Engineering ›› 2014, Vol. 36 ›› Issue (5): 633-635.doi: 10.6052/1000-0879-13-389

• Applied Research • Previous Articles     Next Articles

INTERNAL FORCE AND DISPLACEMENT OF A SYMMETRIC STRUCTURE UNDER LOAD

JIANG Zhongxiang   

  1. School of Civil and Transportation Engineering, Beijing University of Engineering and Architecture, Beijing 100044, China
  • Received:2013-09-23 Revised:2013-10-24 Online:2014-10-15 Published:2014-11-13

Abstract:

For a symmetrical structure under symmetrical load, the internal force and the displacement are symmetrical; under anti-symmetric loads, the internal force and the displacement are anti-symmetrical. Accord-ingly, the structural analysis can be simplified. In this paper the above conclusions are proved mathematically.On this basis, the theory of the internal forces and the displacements of a symmetrical structure under an arbitrary load is discussed.

Key words:

structural mechanics|symmetry|internal force calculation|calculation of displacement

CLC Number: 

  • O342