Additional reinforcer for non-rib-out laminated slab

Abstract

The utility model relates to an additional reinforcer for a rib-free laminated slab, and belongs to the technical field of laminated slab construction, the additional reinforcer comprises a connecting piece which is arranged at an abutted seam of the rib-free laminated slab and is connected with a bottom rib of the rib-free laminated slab, the top of the connecting piece extends to the upper part of the rib-free laminated slab, and the top of the connecting piece is connected with the bottom rib of the rib-free laminated slab. The connecting pieces of every two adjacent non-rib-out laminated slabs correspond in position, reinforcing ribs are arranged on the connecting pieces corresponding in position in a penetrating mode, and the reinforcing ribs are connected with the connecting pieces. The laminated slab has the advantages that many problems caused by outward extension of bottom ribs of a traditional laminated slab are effectively solved, continuity of force transmission of the structural floor slab is achieved, the slurry leakage phenomenon is reduced, and the transportation safety and economical efficiency are improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of laminated slab construction, in particular to an additional reinforcing piece for a non-outstanding-bar laminated slab. BACKGROUND

[0002] In the conventional prefabricated laminated slab manufacturing in the current market, the bottom bar of the laminated slab is extended outwards to realize the force transmission of lapping, but the bottom bar of the laminated slab is extended outwards in the factory prefabrication and transportation process, and there are many disadvantages.

[0003] Firstly, the prefabricated laminated slab side mold needs to be slotted so that the bottom bar of the laminated slab can be extended outwards through the slotted part, which increases the difficulty and cost of the formwork manufacturing; in addition, the slotted part is prone to slurry leakage, that is, in the prefabricated laminated slab manufacturing process, the bottom bar needs to be laid in the pouring formwork, and the bottom bar of the laminated slab can be extended outwards through the slotted part, after the bottom bar is laid, the pouring formwork needs to be poured with concrete, and after the concrete is solidified, the prefabricated laminated slab is formed; during the whole construction process, the slotted part of the side mold is prone to slurry leakage;

[0004] On the other hand, the bottom bar extended outwards occupies a large space and is not conducive to traffic safety. In order to avoid the above-mentioned problems, the prefabricated laminated slab without the bottom bar is adopted; however, the structure of the floor slab is not continuous in force transmission, which is prone to cause the cracking of the prefabricated laminated layer. CONTENT OF THE UTILITY MODEL

[0005] In order to overcome the problems mentioned above, the application provides an additional reinforcing piece for a non-outstanding-bar laminated slab.

[0006] The additional reinforcing piece for the non-outstanding-bar laminated slab provided by the application adopts the following technical scheme:

[0007] An additional reinforcing piece for a non-outstanding-bar laminated slab comprises a connecting piece arranged at a joint of the non-outstanding-bar laminated slab and connected with a bottom bar of the non-outstanding-bar laminated slab, the top of the connecting piece extends above the non-outstanding-bar laminated slab, the connecting pieces of two adjacent non-outstanding-bar laminated slabs are in position correspondence, the connecting pieces in position correspondence are provided with a reinforcing bar, and the reinforcing bar is connected with the connecting pieces.

[0008] By adopting the technical scheme, reliable connection is formed between the non-outstanding bottom bar composite slabs, and many problems caused by the bottom bar overhanging of the traditional composite slab are solved. Specifically, first, the slot is not needed to be opened on the side formwork, the formwork manufacturing process is simplified, the formwork cost is reduced, the slurry leakage phenomenon is reduced, and the quality of the non-outstanding bottom bar composite slab is improved; second, the design of the bottom bar overhanging is cancelled, the space occupation and safety hazards caused by the bottom bar overhanging in the transportation process are reduced, and the transportation efficiency and safety are improved; and finally, through the cooperation of the connecting piece and the reinforcing bar, the reliable connection between the adjacent non-outstanding bottom bar composite slabs is ensured, the integrity and stability of the structure are enhanced, and the cracking phenomenon of the non-outstanding bottom bar composite layer caused by the discontinuous force transmission is reduced.

[0009] Preferably, the top surface of the connecting piece is paved with a top bar, and the post-poured layer covering the connecting piece, the reinforcing bar and the top bar is poured on the top surface of the non-outstanding bottom bar composite slab.

[0010] By adopting the technical scheme, the top bar is paved on the top surface of the connecting piece, and the post-poured layer is poured on the top surface, which not only enhances the integrity and stability of the structure, but also improves the construction efficiency and safety.

[0011] Preferably, the connecting piece is an O-shaped reinforcing bar, the bottom of the O-shaped reinforcing bar is connected with the bottom bar, and the reinforcing bar passes through the hollow part of the O-shaped reinforcing bar and is connected with the O-shaped reinforcing bar.

[0012] By adopting the technical scheme, the O-shaped reinforcing bar as the connecting piece can be effectively connected with the bottom bar, and at the same time, the top of the O-shaped reinforcing bar extends above the non-outstanding bottom bar composite slab, so that the connecting piece can play a reinforcing role at the joint of the non-outstanding bottom bar composite slab; the reinforcing bar passes through the hollow part of the O-shaped reinforcing bar and is connected with the O-shaped reinforcing bar, which further enhances the connection strength between the adjacent two non-outstanding bottom bar composite slabs, reduces the cracking phenomenon at the joint, and improves the integrity and stability of the structure.

[0013] Preferably, a plurality of O-shaped reinforcing bars are arranged, and the plurality of O-shaped reinforcing bars are distributed at equal intervals along the longitudinal direction of the bottom bar to form an O-shaped reinforcing bar group.

[0014] By adopting the technical scheme, the connecting piece can be uniformly distributed at the joint, the connection strength and stability of the connecting piece and the bottom bar are improved, the integrity and shear performance of the non-outstanding bottom bar composite slab are enhanced, and the cracking problem of the prefabricated composite layer caused by the discontinuous force transmission is effectively reduced; at the same time, the uniform distribution design is also helpful to improve the pouring quality of the post-poured layer, and the safety and reliability of the structure are ensured.

[0015] Preferably, the O-shaped reinforcing bar group is arranged in two groups, and the two groups of O-shaped reinforcing bar groups are parallel to each other and are located at the joint of the non-outstanding bottom bar composite slab.

[0016] By adopting the technical scheme, the two groups of O-shaped steel bars are parallel to each other and are located at the joint seams of the non-stickout laminated slabs, which can effectively enhance the connection strength and stability at the joint seams, reduce the cracking phenomenon caused by uneven stress at the joint seams, and ensure the force transmission continuity and integrity between the two adjacent non-stickout laminated slabs.

[0017] Preferably, the spacing between the two O-shaped steel bars located on the same transverse straight line is not greater than 100 mm.

[0018] By adopting the technical scheme, the density and strength of the connecting pieces can be effectively improved, the shear resistance and overall stability at the joint seams can be enhanced, the structural weak points caused by excessively large spacing of the connecting pieces can be reduced, and the overall performance of the non-stickout laminated slab after being combined with the post-cast layer can be ensured.

[0019] Preferably, the connecting piece is a U-shaped steel bar, the horizontal section of the U-shaped steel bar is connected with the bottom bar, and the bent section of the U-shaped steel bar is connected with the reinforcing bar.

[0020] By adopting the technical scheme, the connecting piece is designed as a U-shaped steel bar, the horizontal section of the U-shaped steel bar is connected with the bottom bar, and the bent section of the U-shaped steel bar is connected with the reinforcing bar, which can be pre-buried during factory production to ensure that the connecting piece is firmly fixed at the joint seam of the non-stickout laminated slab; the design of the U-shaped steel bar not only improves the connection strength of the connecting piece and the bottom bar, but also facilitates the installation operation at the construction site; during on-site construction, the reinforcing bar is passed through the corresponding U-shaped steel bars at multiple positions and is tied and fixed on the bent section of the U-shaped steel bar, which can effectively enhance the integrity of the joint seam between the two adjacent non-stickout laminated slabs, reduce the cracking phenomenon caused by discontinuous force transmission at the joint seam, and thus improve the stability and safety of the entire structure.

[0021] In summary, the present application has at least one of the following beneficial technical effects:

[0022] 1. Reliable connection is formed between the non-stickout laminated slabs, and many problems caused by the bottom bar overhanging of the traditional laminated slab are solved; specifically: first, no slot needs to be opened on the side form, which simplifies the formwork manufacturing process, reduces the formwork cost, reduces the slurry leakage phenomenon, and improves the quality of the non-stickout laminated slab; second, the design of the bottom bar overhanging is cancelled, which reduces the space occupation and safety hazards caused by the bottom bar overhanging during transportation, improves the transportation efficiency and safety; finally, through the cooperation of the connecting piece and the reinforcing bar, reliable connection between the adjacent non-stickout laminated slabs is ensured, the integrity and stability of the structure are enhanced, and the cracking phenomenon of the non-stickout laminated layer caused by discontinuous force transmission is reduced;

[0023] 2. The O-shaped steel bar as the connecting piece can be effectively connected with the bottom bar, and the top of the O-shaped steel bar extends to the upper side of the non-stick-out reinforced composite slab, so that the connecting piece can play a reinforcing role at the joint of the non-stick-out reinforced composite slab; the reinforcing bar passes through the hollow part of the O-shaped steel bar and is connected with the O-shaped steel bar, so that the connecting strength between the adjacent two non-stick-out reinforced composite slabs is further enhanced, the cracking phenomenon at the joint is reduced, and the overall and stability of the structure is improved;

[0024] 3. The connecting piece is designed in a U-shaped steel bar, the horizontal section of which is connected with the bottom bar, and the bent section of which is connected with the reinforcing bar, so that the connecting piece can be pre-buried in the factory, and the connecting piece is firmly fixed at the joint of the non-stick-out reinforced composite slab; the design of the U-shaped steel bar not only improves the connecting strength of the connecting piece and the bottom bar, but also facilitates the installation operation at the construction site; during the on-site construction, the reinforcing bar is passed through the corresponding U-shaped steel bars at multiple positions and is tied and fixed on the bent section of the U-shaped steel bar, so that the overall of the joint of the adjacent two non-stick-out reinforced composite slabs is effectively enhanced, the cracking phenomenon caused by the discontinuous force transmission at the joint is reduced, and the stability and safety of the entire structure are improved. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is the overall sectional view of the embodiment 1 of the present application.

[0026] Figure 2 is Figure 1 is the sectional view along the A-A part of the embodiment 1.

[0027] Figure 3 is the sectional view of the embodiment 2 of the present application.

[0028] Reference signs: 1, concrete layer; 11, bottom longitudinal bar; 12, bottom horizontal bar; 2, reinforcing bar; 3, top bar; 4, post-cast layer; 5, O-shaped steel bar; 6, U-shaped steel bar. DETAILED DESCRIPTION

[0029] The following will be described in detail in combination with the accompanying Figures 1-3 The present application will be further described in detail.

[0030] Reference Figure 1 The non-stick-out reinforced composite slab comprises a concrete layer 1 and a bottom bar pre-buried in the concrete layer 1.

[0031] Embodiment 1

[0032] The embodiment of the present application discloses an additional reinforcing piece for a non-stick-out reinforced composite slab. Reference Figure 1 and Figure 2The additional reinforcing member for the non-stirrup composite slab comprises a connecting member arranged at the joint of the non-stirrup composite slab and connected with the bottom bar and a reinforcing bar 2 connected with the connecting member; the top of the connecting member extends above the concrete layer 1. When the joint of the two adjacent non-stirrup composite slabs needs to be reinforced, the connecting members of the two adjacent non-stirrup composite slabs are corresponded in position, the reinforcing bar 2 is passed through the connecting members corresponding in position, then the reinforcing bar 2 is tied with the connecting members to realize the connection of the reinforcing bar 2 and the connecting members, then the top bar 3 is laid on the top surface of the connecting members, finally the concrete covering the connecting members, the reinforcing bar 2 and the top bar 3 is cast on the top surface of the non-stirrup composite slab to form the post-cast layer 4.

[0033] In order to enable the connecting member to be connected with the bottom bar while the connecting member is also located at the joint of the non-stirrup composite slab, the pouring formwork is assembled in advance, then the bottom bar is laid in the pouring formwork and the bottom bar does not extend outwards; then the connecting member is laid at the edge of the pouring formwork (at the joint of the non-stirrup composite slab) and connected with the bottom bar, finally the concrete is cast in the pouring formwork, and after the concrete solidifies, the non-stirrup composite slab with the connecting member is formed, and at this time the top of the connecting member extends above the concrete layer 1.

[0034] The bottom bar comprises a plurality of bottom longitudinal bars 11 arranged longitudinally and parallel to each other and a plurality of bottom transverse bars 12 arranged transversely and parallel to each other; the bottom transverse bar 12 is laid on the top surface of the bottom longitudinal bar 11, and the bottom transverse bar 12 is tied and fixed with the position-corresponding bottom longitudinal bar 11.

[0035] In the embodiment, the connecting member is an O-shaped bar 5, the straight bar is rolled into the O-shaped bar 5 by a bar rolling machine, and the O-shaped bar 5 hooks the bottom transverse bar 12 to realize the connection of the O-shaped bar 5 and the bottom bar, which can be pre-buried during factory production; when the post-cast layer 4 is cast on site, the reinforcing bar 2 is passed through the hollow part of the position-corresponding O-shaped bar 5, and the reinforcing bar 2 is tied and fixed with the O-shaped bar 5, then the top bar 3 is laid on the top of the O-shaped bar 5, finally the concrete covering the O-shaped bar 5, the reinforcing bar 2 and the top bar 3 is cast on the top surface of the non-stirrup composite slab, so that the non-stirrup composite slab and the post-cast layer 4 are combined as a whole.

[0036] In the embodiment, a plurality of O-shaped bars 5 are arranged, the plurality of O-shaped bars 5 are distributed at equal intervals along the length direction of the bottom longitudinal bar 11, and the plurality of longitudinally distributed O-shaped bars 5 form an O-shaped bar 5 group; the O-shaped bar group is provided with two groups, and the two groups of O-shaped bar groups are parallel to each other and located at the joint of the non-stirrup composite slab. Preferably, the interval between the two O-shaped bars 5 located on the same transverse straight line is not greater than 100 mm.

[0037] The implementation principle of the additional reinforcing member for the non-outstanding bar composite slab is that: the connecting member is arranged at the joint of the non-outstanding bar composite slab, and the adjacent connecting members are connected through the reinforcing bars 2, so that a stable force transmission system is formed; the design not only solves the problem caused by the outstretched bottom bar of the traditional composite slab, but also improves the stability and safety of the structure; at the same time, the design can significantly reduce the construction cost and improve the construction efficiency.

[0038] Embodiment 2

[0039] With reference to Figure 1 and Figure 3 The difference between the embodiment and the embodiment one is that the connecting member is different. In the embodiment, the connecting member is a U-shaped steel bar 6, which is bent by a bending machine to form the U-shaped steel bar 6; the length direction of the U-shaped steel bar 6 is consistent with the length direction of the bottom longitudinal bar 11, the horizontal section of the U-shaped steel bar 6 is bound and fixed on one side of the bottom longitudinal bar 11, and the bottom horizontal bar 12 is bound on the top of the horizontal section of the U-shaped steel bar 6 to realize the connection of the U-shaped steel bar 6 and the bottom bar, and the connection process can be pre-buried during factory production; later, when the post-cast layer 4 is poured and constructed on the site, the reinforcing bar 2 is passed through the corresponding U-shaped steel bar 6 at multiple positions, and the reinforcing bar 2 is bound and fixed on the bent section of the U-shaped steel bar 6, then the top bar 3 is laid on the top of the U-shaped steel bar 6, and finally the concrete covering the U-shaped steel bar 6, the reinforcing bar 2 and the top bar 3 is poured on the top surface of the non-outstanding bar composite slab, so that the non-outstanding bar composite slab and the post-cast layer 4 are combined as a whole.

[0040] The above are the preferred embodiments of the present application, and are not limited to the protection scope of the present application, therefore: any equivalent changes made according to the structure, shape, principle of the present application should be covered in the protection scope of the present application.

Claims

1. An additional reinforcing member for composite slabs without ribs, characterized in that: It includes a connector installed at the joint of the non-reinforced composite slab and connected to the bottom reinforcement of the non-reinforced composite slab. The top of the connector extends to the top of the non-reinforced composite slab. The connectors of two adjacent non-reinforced composite slabs are positioned correspondingly. The connectors of the corresponding positions are provided with reinforcing ribs (2), and the reinforcing ribs (2) are connected to the connectors.

2. The additional reinforcing member for a non-ribbed composite slab according to claim 1, characterized in that: The top surface of the connector is covered with a top rib (3), and a post-cast layer (4) covering the connector, the reinforcing rib (2) and the top rib (3) is poured on the top surface of the non-ribbed composite plate.

3. The additional reinforcing member for a non-ribbed composite slab according to claim 1, characterized in that: The connector is an O-shaped steel bar (5), the bottom of which is connected to the bottom reinforcement bar, and the reinforcing bar (2) passes through the hollow part of the O-shaped steel bar (5) and is connected to the O-shaped steel bar (5).

4. An additional reinforcing member for a non-ribbed composite slab according to claim 3, characterized in that: The O-shaped steel bars (5) are provided in multiples, and the multiple O-shaped steel bars (5) are distributed at equal intervals along the longitudinal direction of the bottom reinforcement to form a group of O-shaped steel bars (5).

5. An additional reinforcing member for a non-ribbed composite slab according to claim 4, characterized in that: The O-shaped steel bars (5) are provided in two groups, which are parallel to each other and are both located at the joint of the non-reinforced composite slab.

6. An additional reinforcing member for a non-ribbed composite slab according to claim 3, characterized in that: The spacing between two O-shaped steel bars (5) located on the same horizontal straight line shall not exceed 100mm.

7. An additional reinforcing member for a non-ribbed composite slab according to claim 1, characterized in that: The connector is a Z-shaped steel bar (6), the horizontal section of the Z-shaped steel bar (6) is connected to the bottom reinforcement, and the bent section of the Z-shaped steel bar (6) is connected to the reinforcing bar (2).

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