Dynamical Characteristic Study And Theoretical Analysis Of Spatial Truss String

Beam String Structure (BSS) was introducedbyM.Saitoh, the professor of Japan University. It is a new hybrid roof system different fiom traditional structure. So far, this structure has been applied in some new type Beam String Structures.First this paper retrospects the development procedure of BSS and type of BSS, and expatiate objective and sense of studying this new structure.A new type BSS--Spatial Truss String is analyzed in this paper. And it is major mechanicalbehaviors are conceived by ANSYS program. We analyze the influence of exerting Prestressing on its dynamical characteristic of this structure. For construction control, its characteristics in initial state and load state are compared in this paper. Then we also study the effect of string on the dynamical characteristic under the symmetric load and not under the symmetric loadAs the Prestressing is the key making Beam String Structure the balanceatie system, having large rigidity and embodying the superiority of dynamical characteristic of this structure, this paper studies and conceives how to deteimine the number of the Prestressing in each stage of construction and through comparing between the plan of onetime and repeated pulling construction choose the suitable pulling construction plan.This paper analyzes the stability of Beam String Structure. We discuss the stability of the part andwhole of this structure in the plane and out of the plane. Besides this paper deduces the theoretical formulae about the stability in the plane of the whole of the structure adopting the method of initial parameter. On the stability of this structure out of the plan, this paper raises the formulae of dead load...