The following information from the hollow floor industry Yancheng Building Materials Co., Ltd. day you should offer hope to help my friend. Situ concrete hollow floor design principles situ concrete hollow floor beam and divided into two types of non-beam, light weight hollow floor than a solid floor design, and the same carrying capacity and carrying capacity of a solid floor both have security, but also the economy and aesthetics. The design principle is based on: reinforced concrete members of normal section, it can remove a portion of the tension zone of concrete to form a t-shaped cross member, so you can save materials and reduce weight. Section strength from the positive point of view, the two floor load capacity is equal. Based on this principle, the core is placed in the floor of the tube situ formation of holes, cross section of piping along the positive direction of the floor into a "work" shaped cross section. Thin-walled square box construction 5, lashing the upper reinforcement. 6, when the pouring of concrete, thin-walled square box in the concrete effect of buoyancy and vibration may occur float, positional shift or breakage situation. In order to avoid accidents and defects, to ensure project quality and safety, for thin-walled square box to observe and maintain the hollow floor patents, abnormal timely treatment. Back strip construction should meet the design requirements, after pouring belt after deployment of thin-walled hollow square box floor industry during the interval should do the protection work placement thin-walled square box, square box for damage and replace thin-walled or repair. It should be noted before pouring concrete pouring band of debris after cleaning, and inspection of reinforced, thin-walled square box position is in line with the actual provisions of material piling and construction work carried out should avoid too much focus on in-situ concrete light load floor. 7, thin-walled square box installation process should be strictly in accordance with the template for the construction of the bomb a good line. 8, thin-walled hollow floor reserved for hydropower line square box at the bottom of the tube by actinomycetes embedded position, in order to reduce its weakened section of the floor, embedded pipeline boxes arranged in intercostal position should be as far as possible, embedded pipeline box The coupling node should be arranged in the hollow floor ribs at the belly. Vertical pipes are advised to wear a floor embedded casing. 9, to carry out inspection and acceptance of thin-walled square box after the installation is complete, before the next step after passing. Hollow Floor Design _ should be days of building materials (online consultation) _ Shaoyang hollow floor should be days by the Yancheng Building Materials Limited. Yancheng should be days of Building Materials Co. (yckxlg.com) (www.yckxlg.com) Jiangsu Yancheng, a leader in building materials processing, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs . In the days of building materials should be leading the staff warmly welcome all inquiries negotiations to create the building materials should be days of a better future.