The characteristics,calculation of thermal compensation rate and the stress checking calculation of various corrugated compensator were presented in this paper.

Combined with specific engineering,it introduces design and stress check calculation of high-support mould for frame-beam of conversion layer,illustrates design of high-support mould is emphasis for safety management of construction,designer should be attention to ensure safety and quality.

The author introduces the support selection,the support construction and the stress check calculation of the cast-in-place box beam of the development zone viaduct in the contract No.

In This paper, The structure of static checking, The main beams, piers, pile, pile cap in a variety of conditions of section strength, crack width, allowing capacity to carry out a safety check; through The power, stability and seismic check of The whole Bridge under bridge in The steady state, The reasons for instability, dynamic performance of a security check.