Investigation On Static And Stabilization For Pretension Lattice Shell Structure Of Two-layer Cylindroids

The pretension lattice shell structure is a kind of a novel spacestructure in which the pretension technique was introduced intospace structures, thus the using range of the Pretension techniqueis widened. Pretension and space structures are seen newtechnique and new system in the field of civil engineering, so thecombining of them represents the most new attainment in buildingsystem. In the thesis, based on the development the application andthe analysis of the space steel structure in home and foreign,connection with the merits and faults of the cables arrangement now,a new form of cables arrangement is put forward, on the other word,by using the high-strength steel cable replace the whole bars alongthe short span of the lattice shell structure, and apply different forceon the cables in different place. In this thesis, by making two -layercylindroids pretension lattice shell structure for example, by usingthe finite element method and analysis software ANSYS and designsoftware MST, study this structure and calculate its static andstabilization ;then get the regularity of the stress and displacement;discuss the loading subsequence and force of cables; and analysisit in different effect by using single and multiple pretension force;compare the calculation result with different arrangement of cablespretension force and span; Other wise, the thesis assign thestructure on the development and continuation bid direction.