On Taking Account of the Heteromodularity of the Material When Making Calculations of Trusses with Rigid Joints

Abstract

This article deals with the influence of the heteromodularity of the material on the parameters of the tensity and deformity state (TDS) of truss constructions with a rigid connection of the rods in the joints with a nodal scheme of loading. For the heteromodularity of the material to be taking into account one should use a bilinear diagram of the dependence between tensions and deformations of the material in truss rods. The calculation of trusses is carried out with the help of the force method. The determination of the coefficients and free terms of canonical equations is fulfilled according to Maxwell-More’s generalized formula, which takes into account the heteromodularity of the material. The influence of the heteromodularity of the construction material on the parameters of the TDS of a truss is illustrated with a representative example.