The Analysis for the Static Responses of the through Composite Truss Bridge with Simply Supportation
According to deforming properties of the structure in the action of symmetry loads and the assumption to the displacement functions of the equivalent composite box beam, the total potential energy of the structure is obtained. Based on the spline finite point method, the stiffness equations are deduced, which could be used to determine the approximate solution of the through composite truss under the action of double-lines symmetry loads in considering the relative slip between longitudinal beams and concrete slabs on the deck system, the vertical deformation of transverse beams and the shear lag effect of concrete slabs. The mechanics behavior of the thorough composite truss is studied by means of a calculated example.
Y. J. Chen and Q. Z. Luo, "The Analysis for the Static Responses of the through Composite Truss Bridge with Simply Supportation", Advanced Materials Research, Vols. 163-167, pp. 1965-1968, 2011