In this paper the influence of longitudinal elastic constraints between the tower and beam on the seismic performance of cable-stayed bridges are analyzed theoretically,and an example is taken to calculate.

Parametric studies show that: the existence of the axial restraint causes an increase in the axial force before the column buckles and will reduce the buckling temperature of the column,however it has little influence on the column s .

Authors investigated the axial restraint on fire resistance of unprotected steel column with commercial finite element method(FEM) software MSC MARC Mentat.

The effects of end-plate connection and axial restraint on the behaviour of steel beams are also attained.

Stability analysis and determination of maximum second-order moment of cantilever beam with elastic constraints;

Static analysis of hanging submarine pipeline with elastic constraint;

The results demonstrate that the elastic constraint range of the soil on the pipeline is quite small and the plastic slippage of the soil takes place soon after the elastic state.

Critical force and deformation of elastic restraint rod not only depend on the rod cross section, but also on the restraint condition.

In consideration of the randomness of elastic restraint stiffeness and both cable stiffeness and cable pretension, the general formulas for analyzing random internal forces of the prestressed steel truss by perturbation methed are obtained.

Results of elastic restraints steel beams subjected to common load are presented.

If these elastic restraints action of buckling resistance is taken into account the critical loads of steel members may apparentely been increased and plenty of steel material is saved.