| Combination of plastic boxes situ concrete hollow floor structure system, as a new form of hollow floor structure, because with good overall performance, reduce project cost, good durability, thermal insulation, sound insulation and many other advantages, which are widely used in the field of industrial and civil construction, especially for large spaces and large loads, and more high-rise building with a large span of a broader application of performance.Since2005, China began to implement a hollow floor structure to facilitate the application of technical regulations hollow floor structure technology, however, given the provisions of the provisions of the Statutes is multi-tube core barrel is mandrel-situ concrete hollow floor structure forms and settings, for often used to block the current, the mold box to regulate the provision hollow floor structure within the die less. For a combination of plastic boxes situ concrete hollow floor structure, the domestic current theoretical and experimental study of its finite element analysis and related areas are very rare, which hinders the use of some form of hollow floor technology and development. This research is intended to draw die cast box hollow floor construction site by experimental stress-strain state data under actual state of the finite element simulation and analysis of the current design units commonly used design software and other means to get all the types of data results, comparative study of the results of data integration, providing in-situ concrete slab mold box modeling and analysis results suggested amendments actual hollow design to improve the technical and economic indicators mold box hollow floor design applications.For this reason, this paper studies the following related content:(1)select the cast mold box hollow floor structure of a typical project, whichever is in the middle of a cross-slab of steel, concrete stress, strain and deflection floor performance test to detect the construction site, to get the test results and test data analysis finishing.(2) the choice of a rational structure modeling method, we use discrete modeling approach, based on field test conditions and test procedures and data collected, using ABAQUS finite element analysis software to establish its corresponding finite element analysis model, a combination of plastic box hollow floor actually use force and deformation properties of the state for static finite element analysis to field test data and results were compared to determine the effectiveness of finite element analysis model of correctness and experimental data. The analysis of the deformation properties of the force under floor design stress state by finite element simulation, to provide data to support subsequent finite element analysis and design in hand.(3) which corresponds to the structure of the existing experimental data as well as live ABAQUS finite element analysis model data, based on actual field test hollow floor types, according to the operational guidelines to simplify the mechanics, design and analysis through the use of STRAT design analysis software to create three-dimensional models of the floor and spatial analysis to calculate the finite element analysis and design corresponding deformation data and the data that is reinforced by the force under load.(4)will use the results of the data obtained by different modeling methods and field test data, a comprehensive comparative analysis, finite element analysis to verify the validity of the results of the analysis and modeling methods, and results through a reasonable and finite element analysis model under the same conditions STRAT design analysis software to analyze the resulting data, and the results were analyzed reinforcement finishing, design models created by STRAT software error analysis to identify more reliable STRAT modeling simplified method, the preliminary results of the proposed amendments STRAT design. |
PDF Full Text Request