Detachable building formwork for hollow floor slab and ribbed floor slab
A hollow floor and floor formwork technology, applied in floors, buildings, building components, etc., can solve the problems of easy damage to the side formwork formwork removal formwork, cumbersome formwork assembly process, poor side formwork rigidity and other problems, and achieves good overall stress performance. The construction process is simple and easy, and the effect of high rigidity
Inactive Publication Date: 2013-02-13
湖南航凯建材技术发展有限公司
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Problems solved by technology
This hollow slab formwork solves some problems in the above-mentioned invention, but still has the following deficiencies: when pouring concrete, the concrete squeezes the side formwork, which will cause certain difficulties when the side formwork is removed and the formwork is easily damaged; the formwork assembly process More cumbersome; the rigidity of the side formwork is poor, and the lateral pressure of the concrete is easy to overturn the lower side formwork, and the separation of the upper side formwork and the lower side formwork occurs; the side formwork is prone to grout leakage
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[0034] The technical solutions in the embodiments of the present invention will be further described below in conjunction with the drawings in the embodiments of the present invention.
[0035] The invention is attached Figure 1-21 shown.
[0036] figure 1 Shown is a schematic diagram of assembling a single-side formwork 1, and the single-side formwork 1 of a hollow floor slab is vertically spliced by more than one hard board. The end of the one-sided formwork 1 is connected to the column 3, and the positioning member 4 is set on the inner side of the joint between the column 3 and the side formwork 1, such as figure 2 shown. The positioning piece 4 constrains the horizontal displacement of the side formwork 1, and provides the corresponding reaction force for the side formwork 1 to resist the lateral pressure of the concrete. At the same time, the positioning piece 4 ensures the longitudinal stiffness of the side formwork and avoids the side formwork 1 There may be sl...
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The invention discloses a detachable building formwork for a hollow floor slab and a ribbed floor slab. The formwork comprises single side formworks (1), vertical columns (3) connected with the two adjacent single side formworks (1), and a top formwork (10), wherein location elements (4) are arranged at the inner sides of the junctions of the vertical columns (3) and the side formworks (1). Two adjacent mutually-vertical surfaces at the inner sides of the vertical columns (3) are cut and then form inwards-inclined oblique planes, and the included angle alpha between the two adjacent inwards-inclined oblique planes is an obtuse angle. By using the formwork for casting concrete, the hollow floor slab with a cavity formed by surrounding of a cast-in-situ concrete layer (18), cast-in-situ ribs (17) and the top formwork (10), and the cast-in-situ ribbed floor slab, can be obtained. The detachable formwork for the hollow floor slab and the ribbed floor slab is wide in applicability, simple in assembly procedures, convenient for form removal, free from grout leakage, convenient to obtain materials during formwork production, low in price, and saved in materials due to the fact that the side formworks (1) and the vertical columns (3) can be completely detached and repeatedly utilized; and moreover, the side formworks have an enough rigidity to resist the side pressure of concrete.
Description
technical field [0001] The invention relates to the field of building construction, in particular to a formwork for detachable hollow-core slabs and ribbed slabs for buildings. Background technique [0002] The ribbed floor slab has the advantages of wide application range, saving building materials, low cost, high rigidity, good seismic performance, beautiful appearance, convenient and quick construction, and reducing the height of the building and the weight of the building. Reinforced concrete cast-in-situ hollow-core slabs also have many advantages such as saving building materials, reducing the weight of the floor, good building energy saving effect, convenient construction, convenient pipeline layout, good thermal insulation effect, and suitable for large-span and large-space buildings. [0003] The formwork of densely ribbed slabs is mostly made of plastic or glass fiber reinforced plastic formwork, which is relatively expensive and the construction process is relativ...
Claims
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IPC IPC(8): E04G15/06E04B5/32
Inventor 吴方伯周绪红袁海梅吴充李钧
Owner 湖南航凯建材技术发展有限公司