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Construction method of XPS block body inner die super-thick long-span floor system
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A large-span, block technology, applied in the direction of floor slabs, building materials processing, building components, etc., can solve the problems of easy breakage of the inner mold of the box, unfavorable installation works, exceeding the specification requirements, etc., to achieve non-breakable, balanced force, Guarantee the effect of construction quality
Active Publication Date: 2015-05-27
BIAOLI CONSTR GROUP
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It is stipulated in the regulations that the height of the inner mold of the box can be 150mm ~ 500mm, but many large-span buildings with special functional requirements, such as large conference rooms in star hotels and office buildings, must meet the requirements of the use of clearance while meeting the large span. For the large-span beamless hollow floor, the height of the inner mold of the floor box is more than 500mm, which exceeds the specification requirements; at present, the inner mold of the hollow floor project is the most used GBF or GRF thin-walled box, and our company has used it for many years. This type of box hollow floor technology for this project was approved by the provincial construction method of Zhejiang Province in 2008. Although this kind of thin-walled box has obvious economic and technical advantages, there are still many shortcomings after summarizing experience: such as Easy to seep water and inconvenient to repair, the inner mold of the box is easily broken, the inner mold is expensive, and it is not conducive to the installation project, etc.
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[0051] Below in conjunction with accompanying drawing, the present invention will be further described with specific embodiment, see figure 1 — Figure 8 :
[0052] The construction method of the ultra-thick and long-span floor of the XPS block internal mold, the construction method includes the following steps:
[0053] (1) Erection of the formwork frame: The erection method of the formwork frame 20 is the same as that of the ordinary formwork frame. Due to the large span and overweight structure, two points should be paid attention to in the erection of the formwork frame 20: First, the formwork frame scheme should be in accordance with the relevant national requirements Second, the floor structure should be arched according to the design requirements or 4 / 1000;
[0054] (2) Formwork support: The support method of formwork 8 is the same as that of ordinary formwork engineering. Since the bottom surface of the hollow floor is flat, the support of formwork 8 is much more con...
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Abstract
The invention belongs to the technical field of floor system construction, and relates to a construction method of an XPS body inner die ultra-thick long-span floor system. The construction method comprises the processes of die supporting frame construction, template erection, reinforcing steel bar and XPS block body inner die location, main beam, secondary beam and plate bottom reinforcing steel bar binding, installation engineering pipeline embedding, XPS block body inner die bottom portion anti-floating iron wire binding, XPS block body inner die manufacturing, XPS block body inner die placing, XPS block body inner die top portion anti-floating iron wire binding, panel reinforcing bar installing, concrete pouring and the like. The construction method has the advantages that an XPS block body inner die is capable of bearing the pressure of 1.5 KN / m<2>, anti-leakage and installation project construction is benefited, manufacturing cost is low, construction is convenient, construction progress is fast, and the XPS block body inner die is applicable to buildings with various spans and loads, especially applicable to long-span, large-load, large-space, multiple-demand and high-rise buildings like commercial buildings, supermarkets, multiple-layer parking lots, office building large-space meeting rooms and other public buildings, also applicable to civil buildings like hotels and large-bay residences, and further applicable to multiple-story or single-story industrial factory buildings, storehouses, garages and the like.
Description
technical field [0001] The invention belongs to the technical field of floor construction, in particular to a construction method for an ultra-thick and long-span floor with an inner mold of an XPS block. Background technique [0002] Ordinary cast-in-place concrete hollow floor structures have been widely used in public buildings and residential buildings with large spans due to their advantages such as light weight and small earthquake action, especially in basement roof structures. Hollow floor technology has become more common. The National Engineering Construction Standardization Association also issued the "Technical Regulations for Cast-in-situ Concrete Hollow Floor Structures" on April 1, 2005. This regulation makes more detailed regulations on the internal formwork, structural analysis, design regulations, structural requirements, construction and acceptance of ordinary hollow floor structures. It is stipulated in the regulations that the height of the inner mold o...
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