Research On The Selection And Analysis Of Reinforced Concrete Frame Core Tube Structural Floor System

Floor of the main sub-system level architectural structure, floor structure system correctly identified the importance, Slab thickness (ie, the bottom of the board to the beam height) directly affects storey building and a total height, whether economic rationality select floor structure affect the project cost to a large extent. Select the floor system to consider building function, load size, height, floor structure of the overall stiffness of the overall system and the contribution of seismic performance.In this paper, a real high-rise building projects in the framework of the floor system- core tube structure select the application to expand the thesis. The actual project is set office, banks, hotels, underground garage and ancillary facilities for the integration of commercial office building, using finite element software for structure analysis, recommendations and a basis for the actual project.This article first actual works on a variety of floor system is now more commonly used to make some collected, summed up the scope for a variety of floor systems, floor structure system and the advantages and disadvantages of their own to make the appropriate summary, these are floor cover structural system in a reasonable floor structure of the program to determine the engineering Prerequisites This practical project, follow-up project is a comparative analysis of elastic index, pushover analysis and nonlinear time history analysis ready.PKPM software analysis using different types of floor system in a number of technical and economic indicators under vertical load floor structure, including the floor and crack deflection; the amount of steel and concrete; single total cost comparison. The comparison between the use of the overall structure of the mechanical elastic stage floor system of different types of floor structure under the program to determine the engineering analysis of horizontal loads.Pushover actual works inverted triangular lateral load analysis of global migration patterns and interlayer displacement angle meets the specifications for inelastic displacement angle control limit, by calculating load mode to verify the performance of the point structure rare earthquake seismic compliance specification requirements, research the plastic hinge hinge sequence and the number and range of plastic hinges.Sap2000 use software to do the actual project-history analysis, maximum displacement and angular displacement of Three seismic wave meets specifications inelastic displacement angle control limits. And the results were analyzed with pushover compared. Base shear displacement angle contrast, the overall weak layer to determine the location where, and under rare earthquake shocks. The core tube wall, the outer frame, plastic floor destruction summarized and proposed measures to strengthen the structure of the site.