The approach is based on large deflection characterisation of a curved beam,coupled with fracture mechanics concepts.

Through the nonlinear regression computation for a great number of Finite-Element results,a practical and simple formula is obtained,which can be used to estimate the ultimate bearing capacity of the open thin-walled curved beams.

By using ANSYS finite element analysis method, this paper sets up the thin-walled curved beam unit, and compares the stability bearing capacity of two forms of curved beam with different central angles.

In general cases, the formula for calculating the equivalent load of prestressing force in curved girder is rather complicated and inconvenient to use.

Because the loss of prestressing force caused by friction resistance in curved girder will increase with the increasing of the curvature of curved girder, the calculation for equivalent load of prestressing force must add the effect of friction resistance.

A precise formula for equivalent load of prestressing force in curved girder of arc form is derived from the fundamental formulae of differential geometry.

The geometric nonlinear analysis of curved beams with thin-walled open sections is performed.

Based on the exact longitudinal displacement for thin-walled curved beams, a general theory for linear analysis of curved beams with any open sections is established in this paper by using the principle of virtual work.

Presented herein is a spline finite member element method which adopts transformed B3 spline function to simulate the warping displacements and uses finite member elements for vibration analysis of the thin-walled curved beams.

Analysis of shear lag and effect factors in curved box girder;

Effect of spatial prestressing for curved box girder bridges;

A dynamic model of curved box girder beam in highway interchanges;