Binding On The Degree Of Force Performance Space Managed Node

The tubular joint is an pivotal member in the spacial steel-tube structure of the steel flat roof and other steel structure .This task is based on the floating carcass for Fengman Dam.Forty multiple tubular DT joints with brace subjected to axial load and outof-plane bending moment are analyzed by a finite element method to determine the influence of geometric parameters on the local stress of the joints. Comparision of the results to those of the corresponding simple T joints were made and correction factors are derived to obtain SCF for multiple DT joints under single axial and out-of-plane bending loads. Correction factors that account for the combined loads on the braces(combination of axial and out-of-plane bending moment) are also obtained by superposition. Correctional coefficient is regressed with two methods. One is traditional ;the other is NN.The effect of cabined degree of tubular joints are detailedly discussed in this paper. Finally,the effects of stiffening and load interaction on the maximum stress of DTjoints are discussed.