| The cast concrete hollow floor with corrugated steel web is a new type of composite hollow floor that is evolved from the traditional ribbed beams hollow floor in-situ concreted. The floor structure consists of upper and lower-situ reinforced concrete slab with central corrugated steel webs, is similar with traditional ribbed beams structure hollow floor. The cast concrete hollow floor with corrugated steel web instead the reinforced concrete ribbed beams of traditional structure with corrugated steel webs, greatly increasing the volume of the hollow structure and reducing the weight of the structure, so that more span and smaller cross-sectional height of floor can be done. In addition, the Structure of corrugated steel web is simple and convenient, witch is suitable for large-scale industrialized production. Through reasonable design can realize the field assembly construction convenient, accord with our country building industrialization and rapid construction of the new situation, and the need for large span floor structure. Factory and waveform steel web processing not only reduces the labor intensity, reduce the construction site and the construction on the surrounding environment pollution, but also greatly shorten the construction period, ensure the construction quality. In order to make the corrugated steel webs of cast-in-place concrete hollow floor are used in practical engineering, it is necessary to the over all mechanism of stress, deformation character of the system theory research, explore the design theory and method of reasonable. Analysis of the effect of this new type of floor stress deformation, to provide further research and practical engineering application and reliable calculation basis. This paper will focus on the research of corrugated steel webs of cast-in-situ concrete hollow floor as horizontal support member analysis theory of elasticity under load. The main contents include:The first chapter mainly expounds the corrugated steel webs of cast-in-situ concrete hollow floor structure and characteristics, summarizes the research and development status of domestic and foreign floor, introduces the corrugated steel webs of cast-in-situ concrete hollow floor of the proposed design ideas, reference and research significance, elaborated the main content of this paper.Chapter second analyzes the preliminary feasibility of this new floor, combined with previous data selection of corrugated steel webs of cast-in-situ concrete hollow floor with the same cross section height of cast-in-place concrete ribbeam hollow floor are preliminary comparison, test this new floor with floor structure stress and strain forms in order to decide whether the analysis further research.The third chapter through the finite element analysis software ANSYS, establish different floor section height, corrugated steel web thickness of concrete slab and steel web thickness of cast-in-place slab with finite element model of concrete hollow, make a stress under static load analysis, calculate floor deflection under different factors of the deformation value. Determine the size of various factors to reduce the new floor structure deflection this contribution to determine the floor design data of appropriate, provide a reference for the corrugated steel webs of cast-in-situ concrete hollow floor of theoretical research and engineering application.The fourth chapter introduces two kinds of hollow floor slab calculation method: pseudo plate method and the equivalent beam method, and trial by simulating beam method. |
