Inner framework type floor slab

Abstract

The utility model relates to an inner skeleton type floor slab which comprises a concrete bottom plate, a plurality of skeleton ribs and skeleton reinforcing steel bars pre-buried in the concrete skeleton ribs, the skeleton reinforcing steel bars are composed of upper chord reinforcing steel bars, lower chord reinforcing steel bars and vertical erection ribs, the plurality of skeleton ribs are formed by pouring concrete, and the plurality of skeleton ribs are poured on the upper portion of the concrete bottom plate. The upper chord reinforcing steel bars are located in the framework ribs, the lower chord reinforcing steel bars are located in the concrete bottom plate, the upper chord reinforcing steel bars and the lower chord reinforcing steel bars are connected through the vertical erection ribs, and the distance between every two adjacent framework ribs is not smaller than 50 mm. According to the inner framework type floor, the concrete bottom plate, the framework steel bars and the framework ribs are connected into a whole, the rigidity of the floor is improved, and high construction load can be provided to reduce the thickness of the floor; and while the plate span application is increased, the field has less support and is free of support.

Description

Technical Field

[0001] This application relates to an internally framed floor slab, belonging to the field of industrialized building components. Background Technology

[0002] The most commonly used floor slab type in prefabricated structural engineering is the reinforced concrete composite floor slab, which consists of a reinforced concrete base slab and a post-cast concrete layer. The reinforced concrete base slab is prefabricated in the factory and hoisted into place on site, possessing high rigidity and capable of bearing its own weight and construction loads; the post-cast concrete layer ensures the integrity of the floor slab. However, composite floor slabs typically require increased slab thickness to maintain rigidity requirements, and extensive on-site support is necessary. Furthermore, increased thickness leads to increased resource consumption and pollution, contradicting the green, environmentally friendly, and sustainable development principles of the construction industry. Extensive on-site construction also results in reduced construction efficiency and material waste.

[0003] Therefore, in order to solve the above-mentioned technical problems, it is indeed necessary to provide an internally framed floor slab to overcome the defects in the prior art. Utility Model Content

[0004] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0005] The purpose of this utility model is to provide an internal frame floor slab that can provide high component stiffness to reduce slab thickness and increase slab span application, while requiring less or no on-site support.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: an internally framed floor slab, comprising a concrete base slab, several frame ribs, and frame reinforcing bars pre-embedded in the concrete base slab at the bottom. The frame reinforcing bars consist of upper chord reinforcing bars, lower chord reinforcing bars, and vertical web reinforcing bars. The several frame ribs are formed by concrete pouring and are poured on the upper part of the concrete base slab. The upper chord reinforcing bars are located inside the frame ribs, and the lower chord reinforcing bars are located inside the concrete base slab. The upper chord reinforcing bars and the lower chord reinforcing bars are connected by vertical reinforcing bars. The distance between two adjacent frame ribs is not less than 50mm.

[0007] By adopting the above technical solutions, the stiffness of the floor slab can be increased, which can provide a higher construction load to reduce the slab thickness; while increasing the span of the slab, it can reduce or eliminate the need for on-site support.

[0008] The internal frame floor slab of this utility model is further configured such that: the concrete base slab is also provided with bidirectional reinforcement bars, one direction of which is set on the same layer as the bottom chord reinforcement bars, and the other direction of which is set on the upper or lower layer. The bidirectional reinforcement bars can extend out of the concrete base slab or be embedded in the concrete base slab.

[0009] The internal frame type floor slab of this utility model is further configured such that the thickness of the precast concrete base plate is not less than 30mm.

[0010] The internal frame type floor slab of this utility model is further configured such that: the vertical support bars can be connected by diagonal web bars.

[0011] The internal frame type floor slab of this utility model is further configured such that the upper chord reinforcement and the lower chord reinforcement are made of steel pipe reinforcement.

[0012] The internal frame type floor slab of this utility model is further configured as follows: the lower chord steel bar is additionally supported by a horizontal support foot.

[0013] The internal frame type floor slab of this utility model is further configured such that the frame ribs are made of high-strength concrete.

[0014] By adopting the above technical solutions, high-strength concrete pouring includes, but is not limited to, UHPC concrete and fiber-reinforced high-strength concrete.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] In this invention, the concrete base slab, reinforcing steel bars, and reinforcing ribs are connected as a whole, increasing the rigidity of the floor slab and enabling higher construction loads to be provided while reducing the slab thickness. It also increases the span of the slab and reduces or eliminates the need for on-site support. Attached Figure Description

[0017] Figure 1 This is a top view structural diagram of the internal frame type floor slab of this utility model;

[0018] Figure 2 This is a structural schematic diagram showing the main stress directions of the internal frame floor slab of this utility model;

[0019] Figure 3 This is a structural schematic diagram of the secondary force direction of the internal frame type floor slab of this utility model. Detailed Implementation

[0020] Please refer to the instruction manual appendix. Figure 1 To be continued Figure 3As shown, this utility model is an internally framed floor slab, including a concrete base slab 1, bidirectional reinforcing bars 7, several frame ribs 3, and frame reinforcing bars 2 pre-embedded in the concrete base slab 1 at the bottom. The frame reinforcing bars 2 are composed of upper chord reinforcing bars 4, lower chord reinforcing bars 5, and vertical support bars 6. In this embodiment, the upper chord reinforcing bars 4 and lower chord reinforcing bars 5 are made of steel pipe reinforcing bars. The lower chord reinforcing bars 5 can be additionally equipped with horizontal support feet. The diameter of all the frame reinforcing bars is not less than 6mm.

[0021] Several skeleton ribs 3 are formed by concrete casting, including high-strength concrete, UHPC concrete, and fiber-reinforced concrete. These skeleton ribs 3 are cast on top of the concrete base slab 1. The upper chord reinforcement 4 is located within the skeleton ribs 3, and the lower chord reinforcement 5 is located within the concrete base slab 1. The upper reinforcement 4 and the lower reinforcement 5 are connected by vertical reinforcing bars 6. The spacing between adjacent skeleton ribs 3 can be determined according to the slab span, with a minimum distance of 50mm, a rib width of at least 100mm, and a rib thickness of at least 20mm. The concrete base slab 1 also contains bidirectional reinforcement 7. One direction of the bidirectional reinforcement 7 is located in the same layer as the lower chord reinforcement 5, while the other direction can be located in either the upper or lower layer.

[0022] The bidirectional reinforcing bars 7 of the base slab can extend outside the concrete base slab 1 or be embedded inside the concrete base slab 1. The thickness of the precast concrete base slab 1 is not less than 30mm. The vertical reinforcing bars 6 can be connected by diagonal web bars. The concrete base slab 1, the reinforcing bars 2, and the ribs 3 are connected as a whole, increasing the rigidity of the floor slab and enabling higher construction loads while reducing the slab thickness. It also increases the span of the slab and reduces or eliminates the need for on-site support.

[0023] The above-described specific embodiments are merely preferred embodiments of this invention and are not intended to limit this invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the protection scope of this invention.

Claims

1. An internally framed floor slab, comprising a concrete base slab, several frame ribs, and frame reinforcing bars pre-embedded in the concrete base slab at the bottom. The frame reinforcing bars consist of top chord reinforcing bars, bottom chord reinforcing bars, and vertical reinforcing bars. The several frame ribs are formed by concrete casting and are cast on the upper part of the concrete base slab. The top chord reinforcing bars are located inside the frame ribs, and the bottom chord reinforcing bars are located inside the concrete base slab. The top chord reinforcing bars and the bottom chord reinforcing bars are connected by vertical reinforcing bars. The spacing between two adjacent frame ribs is not less than 50 mm. The thickness of the frame ribs is not less than 20 mm, the width is not less than 100 mm, and the diameter of the frame reinforcing bars is not less than 6 mm.

2. The internal frame type floor slab according to claim 1, characterized in that: The concrete base slab is also equipped with bidirectional reinforcement bars. One direction of the bidirectional reinforcement bars is set in the same layer as the bottom chord reinforcement bars, while the other direction of the reinforcement bars can be set in the upper or lower layer. The bidirectional reinforcement bars can extend out of the concrete base slab or be embedded in the concrete base slab.

3. The internal frame type floor slab according to claim 1, characterized in that: The thickness of the precast concrete base slab shall not be less than 30mm.

4. The internal frame type floor slab according to claim 1, characterized in that: The vertical support bars are connected by diagonal web bars.

5. The internal frame type floor slab according to claim 1, characterized in that: The top and bottom chord reinforcing bars are made of steel pipe reinforcing bars.

6. The internal frame type floor slab according to claim 1, characterized in that: The lower chord reinforcement is reinforced with additional horizontal support feet.

7. The internal frame type floor slab according to claim 1, characterized in that: The skeleton ribs are made of high-strength concrete.

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