One kind new method to determine the internal force of the plane statically determinate truss-The non-polar velocity-diagram method

The methods of deciding zero-force members can contribute to the algorithm of the statically determinate plane trusses.

The methods and procedures of solving the internal force and support reaction of statically determinate truss are introduced by utilized the precision drawing function of the AutoCAD,and the application fields of the AutoCAD are increased.

The use of plane truss in frame design;

The study of calculating initial force and deformation of plane truss in EXCEL;

There are many methods for geometric nonlinearity finite element analysis of plane truss.

Based on the character of the internal force distribution of the statically indeterminate truss, the elements stresses were changed by adjusting the length of bars to increase load capacity of structure.

The strength control problem of adaptive statically indeterminate truss structure is studied.

Utilizing the adjusting function of actuators and the coupling characteristic of internal forces of statically indeterminate truss, the capacity of bearing load of adaptive statically indeterminate truss is increased to obtain more rational working state.