| In recent years, suspension is famous for its attractive appearance, simple construction, mechanical relationship clearly, and other characteristics suitable for large span, which has been adopted in the country. Because they belong to a flexible architecture, the performance of the force after the strong nonlinear characteristics,but it’s not as linear as the cable-stayed bridge that adjusted by the late force, to carry out the construction process which must be controlled by accurately calculate in its unstressed state, its linear and internal force calculation becomes more important. In this paper, Suspension linear calculation is based on research methods to determine the state of the bridge and sling force has a certain value in engineering.This paper summarizes the basic theory of suspension of several static calculation, the calculation of deflection theory are analyzed in detail. Rederived segment catenary cable shape theory, specifically to study the two problems suspension numerical calculation. Study the new dual-cable suspension bridge linear method calculated to segment catenary theory, based on the suspension bridge into the bridge as the basic starting point,calculate the piecewise recurrence relations.Homoto pyiteration method for solving nonlinear equations has good convergence, and this mathematical method is very good on the initial request. To solve the question, using MATLAB software prepare a program for suspension bridge cable shape analytic method calculation. Finally, under the same load, using the finite element analysis software Midas/Civil analysis the suspension bridge, obtained the cable force of the same sling, which verify the correctness of the theoretical approach. |
PDF Full Text Request