A method for building a crack-resistant cast-in-place hollow floor
A hollow floor, crack resistance technology, applied in the direction of floors, buildings, building components, etc., can solve the problems of low evacuation rate, low two-way force and evacuation rate, and unobvious savings
Active Publication Date: 2017-06-16
王本淼
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Problems solved by technology
[0004] In view of the prior art of cast-in-place hollow floors, there are hollow floors that use tubular filling members to form holes, the evacuation rate is low, and the saving is not obvious; the hole formation of square box-shaped components solves the two-way stress of hollow floors. and low evacuation rate, but there is a defect that anti-crack measures need to be provided for the flange plate under the floor. Therefore, a crack-resistant cast-in-place hollow floor is developed by using filling components, which is composed of multiple tubular bodies. Filling components, instead of square filling components; and using the wave shape formed by the combination of adjacent tubes when multi-tubular bodies are combined, concrete is poured in the formed wave shape, and the peaks of the waves appear on the inner surfaces of the upper and lower flange plates, forming a wave shape
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[0018] The invention will be further described below in conjunction with the accompanying drawings.
[0019] figure 1For the longitudinal section of the crack-resistant hollow floor of the present invention, it is implemented to draw lines on the building formwork (14) of the crack-resistant hollow floor, determine the positions of the main and rib (secondary) beams, tie the main beams and rib beams, and vertical and horizontal ribs The beams intersect to form a grid in which the filling member (5) is placed. Drill a small hole with a diameter of 12mm on the formwork, wrap the lower reinforcement of the beam (3) with iron wire (13), pass through the formwork and tie it on the scaffold for anti-floating treatment, and lay the flange plate reinforcement (16), vertically and horizontally Reinforcing bar (16) is laid on the support isolation part (9), and the vertical or transverse reinforcement (16) and the support isolation part (9) are first intersected and placed. Partial la...
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The invention provides a method for building a crack-resistant cast-in-place hollow floor, which comprises an upper flange plate (2), a beam (3), a lower flange plate (4) and a Filling component (5), after pre-buried the pipeline, first pour the corrugated lower flange concrete, the inner surface of upper flange plate (2) and lower flange plate (4) is corrugated (6), fill component (5) It is formed by combining more than three inflatable tubular bodies (7) side by side, and the adjacent joint parts (8) of the inflatable tubular bodies are in close contact; when the filling members (5) are combined in parallel, the length of each single tube becomes the filling body (5 ), the length (52) / width (51) of the filling body (5)≥0.7. The invention makes full use of the inflatable tubular body, and uses the tubular features to effectively solve the defects of punching resistance and cracking in the prior art, and the floor can save costs, the construction is more convenient and fast, and the floor structure is more reasonable.
Description
technical field [0001] The invention relates to a new type of building floor, steel-concrete combined hollow floor, one-way densely ribbed groove floor and high-rise core tube floor, in particular to a method for building a crack-resistant cast-in-place hollow floor. Background technique [0002] At present, in the technical field of cast-in-place reinforced concrete hollow floors, a separate tubular filling body or square filling body is usually placed in the floor grid. After pouring concrete, an upper flange plate and a lower flange are formed around the single filling body. Slabs and rib beams are built into cast-in-place hollow floors, such as the ZL98231113.3 "concrete thin-walled cylinder member" obtained by the inventor. This patent is widely used in hollow floor projects and solves the problem of non-pumping However, due to the unequal rigidity in the two directions of the longitudinal tube and the horizontal tube, it is only used in the "I-shaped" cross-section flo...
Claims
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IPC IPC(8): E04B5/32E04G21/00
Inventor 王本淼尹华教王海崴卜明华
Owner 王本淼