The Construction Technology Research On High-rise Building With Thick Transfer Floor

The rapid development of high-rise building bring a new challenge to the technique of construction, and the structure of high-rise building also becomes more and more large and complicated As the change of function of transfer floor, high-rise building transfer floor is an important measure for conveying the up-structure load. But with the increase of loading, the size of transfer floor is always great, so the new issues are bringing about. The research on construction technology for high-rise building transfer floor have very important engineering meaning.The concept and layout form and structure form of high-rise building transfer floor is firstly introduced in this dissertation simply. The load form of transfer floor is complicated and the stress-strain changes greatly, the dissertation mainly discussed structure characteristics and pressure characteristics of transfer floor in detail.The technique of construction of slab shape of concrete transfer floor is completely studied. Firstly, for the system of support frame in moulding board of transfer floor,it analysed the design method of moulding board and it mainly analysed the structure characteristics and design method of the system of support frame in moulding board of transfer floor, it includes the strength checking of horizon member bar of both longitude and checking calculation on flexural rigidity and the stability of vertical member,etc, and then proposes the load analysis of multi-level support frame. To the high-rise building's support frame,the dissertation proposes the approximate calculation based on half-rigidity steel frame.Secondary, for the mass concrete structure of high-rise building transfer floor,the emphases is the control of cracks in construction. Based on that, the reason for producing cracks is firstly analysed and the control measures of cracks is expounded. In measures on the control of cracks the material, the rate of conjugate, the design of pour, and the structure form are all necessary. The calculation of temperature control for transfer floor concrete can adopt the methods of keeping temperature and sluicing water methods according to the cracks control for out restriction in order to informative construction.Finally, the dissertation take The New World Center in Wuhan as a example to analyse the support frame of transfer floor and temperature cracks' control. Especially the use of calculation software ANSYS, get a good effect for the research on the support system of transfer floor.