It is simple,practical and accurate as a method for enterprises to conduct beam optimal design and load capacity calculation.

Based on the Maxwell Stress Tensor method, an effective torque calculation model was developed to eliminate the difficulties in torque calculation.

Steel types,bearing capacity calculation method and construction technology for strengthening concrete components with wet-connected envelop steel is introduced,and illustrated that the wet-connected envelop steel method is widely used and a successful construction technology for the old plant maintenance and transformation at present.

The status research of bearing capacity property,composite foundation bearing capacity calculation,pile-soil stress ratio,composite modulus of deformation and foundation settlement was introduced in this article,it can improve the research and application of cement mixing pile composite foundation.

Through summarization on 50 m T-typed beam hoisting machine,the bearing capacity calculation of bridge machine main beam,force analysis and strength calculation of runway girder were introduced.

On calculation of bearing capacity of concrete member subjected to bending torsion with consideration of related influence;

Magnetic Circuit Analysis and Magnetic Torque Calculation of Magnetic Drive Technology;