It introduces the reinforcing design of concrete pile increasing section and constructing methods as well as structural measures to ensure concrete general pile work after reinforcement,meantime,it also introduces calculation and controlling in using steel stress after pile s reinforcement,in order to spread the application of increasing section reinforcement methods.

Strength calculation of axial compressive RC members strengthened with increasing section method;

Several strength methods for concrete structures such as CFRP,increasing section and bonding steel plates are intruced to(appling) in an uncompleted building which is demanded to add six storeys.

The research method and process about reinforcing and increasing bearing capacity of rigid-frame arch bridge by increasing section technique are introduced.

Then on the basis of invariant manifold theory and Poincaré section,a transfer trajetory between L1 and L2 of the Earth-Moon system was given.

By using bifurcation diagrams and Poincaré sections, the effects of circuit parameters on bifurcation behaviors are analyzed.

Examples to strengthen frame column with increasing section method;