The Branch of Theoretical Analysis and Application Research on Grid String Structure

Abstract

According to the ideas of the beam string structure, to stress structure is put forward, this is a very flexible cable for joined the rigid grid and support. This is the grid string branch structure. String branch established grid computing model. Static and dynamic characteristics of structure, it shows the different prestressing is analyzed. Through the analysis of structure displacement and internal force of the rod is according to the prestressing value obviously improved. Prestress value is larger, the structure displacement and internal force of the lever is low. The characteristic of structural natural vibration almost no change, although prestress value is changing. When the structure analysis, the structural vibration response curve conforms to the general law. Node displacement response and lower chord node block effect did not happen.