Prestress thick plate hollow floor construction method
A technology of hollow floor and construction method, which is applied in the direction of floors, building components, buildings, etc., can solve problems such as spatial positioning deviation of prestressed tendons in geometric dimensions, floating and displacement of built-in empty boxes, and decline in the mechanical performance of floors, etc., to achieve It is not easy to be knocked down or displaced, it is conducive to the flow of concrete, and the effect of reducing the space for loading vehicles
A technology of hollow floor and construction method, which is applied in the direction of floors, building components, buildings, etc., can solve problems such as spatial positioning deviation of prestressed tendons in geometric dimensions, floating and displacement of built-in empty boxes, and decline in the mechanical performance of floors, etc., to achieve It is not easy to be knocked down or displaced, it is conducive to the flow of concrete, and the effect of reducing the space for loading vehicles
CN110965685AInactive Publication Date: 2020-04-07SHANGHAI ERSHIYE CONSTR CO LTD +1
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[0049]Below in conjunction with specific embodiment, further illustrate the present invention. It should be understood that these examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the teachings of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of the present application.
[0050] Embodiments of the present invention are aimed at a prestressed hollow floor, such as figure 1 As shown, the length is 8.4m, the width is 8.4m, the overall floor thickness is 650mm, the thickness of the upper and lower slabs is 125mm, the width of the rib beam is 100mm, the net distance between the two ribs is 400mm, and the prestressed tendons are arranged in the middle of the rib beam. The construction method of the pr...
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The invention relates to a prestress thick plate hollow floor construction method. The method comprises the steps: according to hollow floor design parameters, deepening the geometric dimension and arrangement parameters of a built-in hollow square box; determining arrangement parameters of an anti-floating tie bar; mounting a formwork; locating a hidden beam, a column cap, a multi-ribbed beam, ahigh-injection alloy square box and a reserved embedded facility and performing scribing; installing the hidden beam, column cap ribs, a plate bottom reinforcing steel bar, prestressed ribs and the reserved embedded facility; connecting the plate bottom reinforcing steel bar with the bottom template; laying a hollow square box bottom positioning device; laying a hollow square box; laying an anti-floating steel bar layer, and placing an upper positioning device; connecting the upper positioning device with the plate bottom reinforcing steel bar; placing a plate top reinforcing steel bar cushionblock, laying plate top reinforcing steel bars on the plate top reinforcing steel bar cushion block and performing binding, and tying the plate top reinforcing steel bars and the plate bottom reinforcing steel bars through tie bars; pouring concrete, and performing vibrating and maintaining; performing prestress tensioning, grouting and anchor sealing; and dismantling the formwork. The construction quality of the prestress hollow floor can be improved, and the field construction difficulty is reduced.
Description
technical field [0001] The invention belongs to the technical field of hollow floor construction, in particular to a construction method of prestressed thick plate hollow floor. Background technique [0002] With the further improvement of the use function of modern buildings, the demand for large space and beamless is increasing. As a new type of structural system, the cast-in-place concrete hollow floor has the characteristics of material saving, energy saving, sound insulation, earthquake resistance, flexible space, light weight, and low cost, which can well meet the current building needs and has developed rapidly. . Especially the prestressed cast-in-place concrete hollow floor combined with prestressing technology can provide a larger building space, has good economic benefits and social value, and has a very broad market prospect. [0003] However, compared with the construction of traditional ordinary floors, such structures will have phenomena such as the floating...
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Patent Timeline
07 Apr 2020
Publication
CN110965685A
- IPC
- E04B5/32; E04C1/00
- CPC
- E04B5/326; E04C1/34; E04C1/38
- Inventors
- 韩向科; 康建元