Bidirectional stress transverse hole type prestressed hollow slab

Abstract

The utility model relates to the technical field of fabricated building boards, in particular to a bidirectional stress transverse hole type prestressed hollow slab. The plate comprises a plate body, the plate body comprises an upper panel and a lower panel which are arranged in parallel, the upper panel and the lower panel are connected through a longitudinal rib, a plurality of longitudinal steel bars are horizontally arranged in the longitudinal rib in the length direction of the longitudinal rib at intervals, and the front end and the rear end of each longitudinal steel bar penetrate out of the longitudinal rib and extend outwards. A plurality of transverse ribs are evenly arranged on the left side and the right side of the longitudinal rib at intervals in the length direction of the longitudinal rib respectively, and the transverse ribs are connected with the upper panel and the lower panel respectively. The bamboo joint type prestressed hollow slab is reasonable in structural design, the slab bodies are assembled like bamboo joints according to the bamboo joint type bionic principle, two-way stress is formed, a two-way pull rod system is formed, the connection strength between the slab bodies and the connection strength between the slab bodies and supporting components are remarkably improved, the bearing capacity of the prestressed hollow slab is improved, and the service life of the prestressed hollow slab is prolonged. The problems in the prior art are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of fabricated building board, especially a bidirectional stress transverse hole type prestressed hollow slab. BACKGROUND

[0002] Due to prestressed hollow slab, with a series of advantages such as high bearing capacity, light weight, low cost, simple construction, free support, it is widely used in industrial plants, shopping malls, office buildings, residences, schools and other types of buildings. However, the prestressed hollow slab in practical application, the connection stability between the plate and the plate, the plate and the supporting component is poor, the integrity is weak, the seismic performance is poor, still perplex people. SUMMARY

[0003] The utility model provides a bidirectional stress transverse hole type prestressed hollow slab to make up for the deficiency of prior art, it structural design is reasonable, adopts the bionic principle of 'bamboo joint type', and the plate body is assembled like bamboo joint, forms bidirectional stress, forms bidirectional pull rod system, significantly improves the connection strength between the plate body and the plate body and the connection strength between the plate body and the supporting component, improves the bearing capacity of prestressed hollow slab, solves the problems in prior art.

[0004] The utility model discloses a bidirectional stress transverse hole type prestressed hollow slab to make up for the deficiency of prior art, it structural design is reasonable, adopts the bionic principle of 'bamboo joint type', and the plate body is assembled like bamboo joint, forms bidirectional stress, forms bidirectional pull rod system, significantly improves the connection strength between the plate body and the plate body and the connection strength between the plate body and the supporting component, improves the bearing capacity of prestressed hollow slab, solves the problems in prior art.

[0005] Bidirectional stress transverse hole type prestressed hollow slab, including plate body, the plate body includes the upper panel and lower panel who sets up in parallel, the upper panel is connected with the lower panel through the longitudinal rib, and a plurality of longitudinal reinforcing bars are horizontally arranged in the longitudinal rib along the length direction at intervals respectively, the front and back two ends of each longitudinal reinforcing bar respectively passes out the longitudinal rib and extends outward, a plurality of lateral ribs are evenly spaced along the length direction on the left and right sides of the longitudinal rib respectively, each lateral rib is connected with the upper panel and the lower panel respectively, and a lateral hollow hole is formed between the adjacent two lateral ribs, a plurality of lateral reinforcing bars are horizontally arranged in the plate body along the width direction respectively, each lateral reinforcing bar is arranged in the corresponding lateral rib correspondingly, and a connector is arranged in each lateral hollow hole.

[0006] Optionally, the connector includes two fixed plates arranged symmetrically left and right, and the two fixed plates are connected by a plurality of connecting reinforcing bars, one of the two fixed plates is correspondingly clamped in the end hole of the lateral hollow hole of the plate body, and the fixed plate on the other side is arranged on the outside of the plate body.

[0007] Optionally, the hole shape of the lateral hollow hole is an oval combined hole or a circular hole, and the fixed plate matched with the lateral hollow hole is also an oval combined hole or a circular hole.

[0008] Optionally, grooves are formed on the side walls of the plate body on the left and right sides along the length direction respectively, and the top of the groove is arranged on the surface of the plate body.

[0009] Optionally, the longitudinal steel bars or the transverse steel bars can adopt any one of a prestressed steel strand, a spiral rib prestressed steel wire or a common steel bar.

[0010] The utility model discloses the above-mentioned technical scheme, and the advantages are:

[0011] 1. The structure design is reasonable, adopts "bamboo joint type" bionics principle, and the plate body is assembled like bamboo joint, and the connection strength between the plate body and the plate body and the connection strength between the plate body and the supporting component are improved, and the bearing capacity of prestressed hollow core slab is improved;

[0012] 2. The hollow core slab has the advantages of high bearing capacity, good crack resistance, large span and flexible application building space separation.

[0013] 3. The hollow core slab has the advantages of saving formwork, less steel consumption, light weight, less waste gas and waste residue emission, fast construction, low cost, wide application range and meeting the requirements of green construction.

[0014] 4. The hollow core slab meets the seismic requirements of strong nodes and weak components, opens up a new path for industrialized production of prestressed concrete structures, and can prevent the structure from collapsing, overturning and chain damage under unexpected loads.

[0015] 5. The hollow core slab has reasonable structural robustness, and the longitudinal and transverse prestressed steel bars form a reliable pull rod system, provide a clear load transmission path, and enhance the continuity, ductility and overall stability of the structure. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0017] Figure 2 It is a three-dimensional structure schematic view of the connector;

[0018] Figure 3 It is a top view structure schematic view of Figure 1 ;

[0019] Figure 4 It is an A-A direction sectional view enlarged structure schematic view of Figure 3 ;

[0020] Figure 5 It is a B-B direction sectional view enlarged structure schematic view of Figure 3 ;

[0021] Figure 6 It is a C-C direction partial sectional view enlarged structure schematic view of Figure 3 ;

[0022] Figure 7Structure diagram of plate and plate, plate and support member connection;

[0023] In the figure, 1, upper plate; 2, lower plate; 3, longitudinal rib; 4, longitudinal steel bar; 5, transverse rib; 6, transverse hollow hole; 7, transverse steel bar; 8, connector; 801, fixed plate; 802, connecting steel bar; 9, groove; 10, end negative steel bar; 11, superimposed layer; 12, surface layer; 13, support member; 14, longitudinal round beam. DETAILED DESCRIPTION

[0024] In order to clearly illustrate the technical features of the present application, the present application will be described in detail below with specific embodiments and in conjunction with the drawings. In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, but the present application can also be implemented in other ways different from those described herein, therefore, the protection scope of the present application is not limited by the specific embodiments disclosed below.

[0025] In addition, in the description of the present application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" can be explicitly or implicitly included one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0026] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integral. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms is not necessarily for the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0027] As Figures 1-7 shown in the embodiment, the bidirectional stress transverse hole type prestressed hollow slab comprises a slab body, the slab body comprises upper slab 1 and lower slab 2 arranged in parallel, the upper slab 1 and the lower slab 2 are connected through longitudinal rib 3, a plurality of longitudinal reinforcing bars 4 are arranged in the longitudinal rib 3 along the length direction of the longitudinal rib 3 at intervals, the front and rear ends of each longitudinal reinforcing bar 4 respectively pass through the longitudinal rib 3 and extend outward, a plurality of transverse ribs 5 are arranged at intervals along the length direction of the longitudinal rib 3 on the left and right sides of the longitudinal rib 3, each transverse rib 5 is connected with the upper slab 1 and the lower slab 2, and a transverse hollow hole 6 is formed between the adjacent two transverse ribs 5, a plurality of transverse reinforcing bars 7 are arranged in the slab body along the width direction of the slab body at intervals, each transverse reinforcing bar 7 is arranged in the corresponding transverse rib 6, and a connector 8 is arranged in each transverse hollow hole 6.

[0028] Optionally, the connector 8 comprises two fixed plates 801 arranged in left-right symmetry, the two fixed plates 801 are connected through a plurality of connecting reinforcing bars 802, one of the two fixed plates 801 is correspondingly clamped in the end hole of the transverse hollow hole 6 of the slab body, and the other fixed plate 801 is arranged on the outside of the slab body.

[0029] Optionally, the hole shape of the transverse hollow hole 6 is an oval combined hole or a circular hole, and the fixed plate 801 matched with the transverse hollow hole 6 is also in the shape of an oval combined hole or a circular hole.

[0030] Optionally, grooves 9 are arranged on the side walls of the slab body on the left and right sides along the length direction of the side walls, and the top of each groove 9 is arranged on the surface of the slab body. Concrete can flow into the transverse hollow holes 6 of the adjacent two slab bodies through the arranged grooves 9, so that the pouring of concrete is greatly facilitated, and the connection of the two slab bodies is realized.

[0031] Optionally, the longitudinal reinforcing bars 4 or the transverse reinforcing bars 7 can adopt any one of prestressed steel strand, spiral rib prestressed steel wire or ordinary reinforcing bar.

[0032] Optionally, a plurality of slab bodies are arranged side by side, the adjacent two slab bodies are connected through a plurality of connectors 8, the two ends of each connector 8 are clamped in the transverse hollow holes 6 of the two slab bodies on the adjacent side, and concrete is poured in the transverse hollow holes 6 of the adjacent two slab bodies.

[0033] Optionally, a plurality of end negative reinforcements 10 are arranged side by side along the length direction of the plate body on the outer side, the outer end of each end negative reinforcement 10 is bent downward after extending outward from the plate body, a laminated layer 11 and a surface layer 12 are sequentially laid on the surface of each plate body, each end negative reinforcement 10 is arranged in the laminated layer 11, and the laminated layer 11 is made of light material. Each end negative reinforcement 10 bears a negative bending moment and can further improve the connection stability of the plate body and the support member 13, so that the bidirectional prestressed hollow plate can be more stably connected with the support member 13.

[0034] When the bidirectional prestressed hollow plate is installed, the prestressed hollow plates are arranged on the tool type temporary support one by one for installation. The prestressed hollow plate is overlapped on the transverse circular beam of the corresponding support member 13 through the longitudinal steel bars 4 penetrating out of the plate body, the left side of the plate body is overlapped on the longitudinal circular beam 14 of the support member 13 through a plurality of connectors, another plate body is placed on the right side of the first plate body (to ensure that the plate is also overlapped on the transverse circular beam through the longitudinal steel bars 4), and the second plate body is spliced with the first plate body through a plurality of connectors 8. After all the plate bodies are laid according to the above steps, the end negative reinforcements 10 are arranged, and the concrete of the grooves 9, the connectors 8, the transverse circular beams, the longitudinal circular beams 14 and the laminated layers 11 is poured, so as to realize the fixation between the plate bodies and the plate bodies, the plate bodies and the circular beams. It has reasonable structure, adopts the bionic principle of "bamboo joint type", assembles the plate bodies like bamboo joints, forms bidirectional stress, forms a bidirectional pull rod system, significantly improves the connection strength between the plate bodies and the plate bodies and the connection strength between the plate bodies and the support members, improves the bearing capacity of the prestressed hollow plate, and solves the problems in the prior art.

[0035] The above embodiments are only used to illustrate the technical solutions of the present application, but not limit the present application; although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions recorded in the above embodiments can be modified, or some or all of the technical features can be replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the claims and the specification of the present application; any alternative improvement or change made by those skilled in the art to the embodiments of the present application falls within the protection scope of the present application.

[0036] The parts not described in the present application are the known technology of those skilled in the art.

Claims

1. A bidirectional prestressed hollow slab with transverse hole, characterized in that, The plate body comprises upper and lower plates arranged in parallel, the upper and lower plates are connected by longitudinal ribs, a plurality of longitudinal reinforcing steels are arranged in the longitudinal ribs along the length direction of the longitudinal ribs, the front and rear ends of each longitudinal reinforcing steel are respectively extended out of the longitudinal ribs, a plurality of transverse ribs are arranged on the left and right sides of the longitudinal ribs along the length direction of the longitudinal ribs, each transverse rib is connected with the upper and lower plates, and a transverse hollow hole is formed between two adjacent transverse ribs, a plurality of transverse reinforcing steels are arranged in the plate body along the width direction of the plate body, and each transverse reinforcing steel is arranged in the corresponding transverse rib, and a connector is arranged in each transverse hollow hole.

2. The bidirectional force lateral hole type prestressed hollow slab according to claim 1, characterized in that, The connector comprises two symmetrical fixing plates connected by a plurality of connecting reinforcing steels, one fixing plate is correspondingly clamped in the end hole of the transverse hollow hole of the plate body, and the other fixing plate is arranged outside the plate body.

3. The bidirectional force lateral hole type prestressed hollow slab according to claim 2, characterized in that, The transverse hollow hole is an elliptical combined hole or a circular hole, and the fixing plate matched with the transverse hollow hole is also an elliptical combined hole or a circular hole.

4. The bidirectional force lateral hole type prestressed hollow slab according to claim 1, characterized in that, Grooves are arranged on the left and right side walls of the plate body along the length direction of the plate body, and the top of the groove is arranged on the surface of the plate body.

5. The bidirectional force lateral hole type prestressed hollow slab according to claim 1, characterized in that, The longitudinal reinforcing steel or the transverse reinforcing steel can be any one of prestressed steel strand, spiral rib prestressed steel wire or ordinary reinforcing steel.

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