With previous successful experiences in lifting tanks with different sizes,the authors put forward an integral lifting scheme for a 50000 m3 floating roof oil storage tank.

Using the successful experiences of oil tank integral lifting in rece nt years for reference, the schemes of integral lifting for a 5×104 floating r oof tank are worked out, and through the verification calculations of stability and strength, the optimum scheme is determined.

According to petroleum geology evolution of several typical Tertiary basins in the east of China, the process of basin evolution may be divided into three stages of whole descending, whole ascending and whole adjusting.

Based on structures characteristics,roof cable-net structure was installed by integral lifting method,and the installation scheme was introduced in this paper.

This paper has presented the construction technique of the assembling in site about the large-span steel pipe roof truss and the technique of integral lifting about the truss.

The integral lifting of steel truss in the National Conference Center Project has finished the technical problems that needed to be resolved in four times of steel truss lifting according to the project characteristics and difficulties.

On the safe steps in the process of large span steel honing frame whole lifting;

In structural project of steel roof of Capital Airport A380 hangar, conditions of forces on rod during whole lifting are reflected through real-time monitoring on overall whole lifting process of large-span steel space frame and steel truss, and theoretical calculations are verified by practical data.

In the project of steel roof structure of Capital Airport A380 hangar, research and application of whole lifting technology of large-span steel space frame and steel truss guarantee favorable construction effect.