The author of this paper mainly introduces the drawing-up tower crane s assemble and disassemble plan,and some problems in the process of its installation,application and disassemble as well.

Importance of safety management and position of a tower crane in group project;

The design and construction of steel lattice pile tower crane basis of Zhengzhou display hotel;

A few problems of the basic design of fixed tower crane;

These technologies include vertical prestressed stretching and grouting technique of concrete head mast, prestressed technique of over\|length concrete exterior ring beam, construction technique of late grouting zone, and a set of construction techniques of prestressed oblique tension steel rope of roof and so on.

Construction technology on lifting bracket matching tower hoist & high pier crossing model;

Aimed at the features of crossover towers with steel tube of 500 kV direct-current transmission ofLongzheng project in Wang Jiatan,this project was adopted that crossover tower with steel tube is assembled bytower hoist and introduced the structure, design on base, adhering to fix and removal of the QTZ63 type towerhoist, This project was acquired effect well.

Wind flow around twin-tower tall buildings is generally complicated and there is no simple method or laws for determination of the induced surface pressures on such buildings.