Connecting structure of UHPC (Ultra High Performance Concrete) plates

Abstract

The utility model discloses a connecting structure of UHPC (Ultra High Performance Concrete) plates, which comprises two adjacent plate bodies, grooves are arranged on the side walls of the plate bodies, connecting pieces are arranged at the joints of the adjacent plate bodies, the connecting pieces comprise convex pieces matched with the grooves, the sizes of the convex pieces are smaller than the sizes of the grooves, and the convex pieces are connected with the grooves through the connecting pieces. Concrete is poured into gaps between the grooves and the convex pieces; according to the utility model, the buckling column, the buckling groove, the supporting rod and the slot are arranged, the size of the buckling column is smaller than that of the buckling groove, and the diameter of the supporting rod is smaller than that of the slot, so that pores can be formed in the buckling groove and the slot to form a pouring space for concrete pouring; and after concrete is coagulated, the buckling columns are forced to be stably installed in the buckling grooves, the supporting rods are stably installed in the inserting grooves, convenience is provided, concrete pouring can be achieved without building a formwork, and the concrete plate connecting efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete slab connection, in particular to a connection structure of a UHPC ultra-high performance concrete slab. Background Art

[0002] With the development of modular buildings, in order to improve the construction efficiency of buildings, various building components are usually prefabricated and then transferred to the construction site for splicing. In order to ensure the strength of prefabricated building components, UHPC ultra-high performance concrete is usually poured into the steel cage, using the high-quality performance of UHPC ultra-high performance concrete to improve the quality of modular buildings.

[0003] In order to stably connect adjacent UHPC concrete slabs, corresponding treatment is required at the junction of adjacent UHPC concrete slabs, such as pouring UHPC concrete in the gap between UHPC concrete slabs. For details, reference may be made to a precast concrete slab connection method disclosed in a Chinese patent with patent publication number CN103806546A, in which the side of the precast concrete slab is pre-embedded with fully anchored steel bars with semi-circular exposed parts, and transverse steel bars are hung on the semi-circular steel bars, and the transverse steel bars are overlapped in the reserved gaps between the precast concrete slabs; a formwork is supported at the lower part of the reserved gap, and concrete is poured in the reserved gap to connect the precast concrete slabs into a whole; or a formwork is supported at the lower part of the reserved gap, and concrete is poured in the reserved gap and the upper part of the precast concrete slab to form a precast concrete composite slab.

[0004] The concrete slab connection method provided by the above patent requires building a template at the junction of the concrete slabs, forming a casting model through the cooperation of the template and the concrete slab, and pouring UHPC concrete into the model space. Due to the need to build a template, this method is relatively cumbersome and inefficient. Utility Model Content

[0005] The utility model aims to provide a connection structure of UHPC ultra-high performance concrete slabs, aiming to improve the problem that formwork needs to be built when connecting concrete slabs, which consumes a long time and has low efficiency.

[0006] The utility model is implemented as follows: a connection structure of a UHPC ultra-high performance concrete slab comprises two adjacent slab bodies, grooves are arranged on the side walls of the slab bodies, and a connecting piece is arranged at the intersection of the adjacent slab bodies, the connecting piece comprises a convex piece adapted to the groove, the size of the convex piece is smaller than the size of the groove, and concrete is poured in the gap between the groove and the convex piece.

[0007] Preferably, the connecting member can be configured as a first snap-in column, which is fixedly disposed on an edge of the plate body, and a snap-in groove is disposed on the other edge of the plate body, and the first snap-in column is located in the snap-in groove of the adjacent plate body.

[0008] Preferably, the heights of the first snap column and the snap groove are equal and both are smaller than the thickness of the plate body, the diameter of the first snap column is smaller than the diameter of the snap groove, and concrete is poured in the gap between the first snap column and the snap groove.

[0009] Preferably, the connecting member is configured as a first connecting member, the first connecting member includes two symmetrical and fixedly connected second snap-in columns, a snap-in groove is provided on the edge of the plate body, the second snap-in column is located in the snap-in groove, the height of the second snap-in column and the snap-in groove are equal and less than the thickness of the plate body, the diameter of the second snap-in column is less than the diameter of the snap-in groove, and concrete is poured in the gap between the second snap-in column and the snap-in groove.

[0010] Preferably, the connecting member is configured as a second connecting member, which includes a first main board and multiple first support rods, which are vertically arranged on both sides of the first main board, and slots are arranged on the side walls of the board body. The height of the first main board is equal to the height of the board body, and the first support rods are inserted into the slots.

[0011] Preferably, the length of the first support rod is equal to that of the slot and its diameter is smaller than that of the slot, and injection holes are arranged on the side walls of the slot; a plurality of first protruding rods are arranged on the side walls of the first support rod, and the ends of the first protruding rods can contact the side walls of the slot.

[0012] Preferably, the connecting member is configured as a third connecting member, which includes a second main board and a plurality of second support rods, the plurality of second support rods are vertically arranged on both sides of the second main board, a slot is arranged on the side wall of the board body, the height of the second main board is equal to the height of the board body, and the second support rods are inserted into the slot.

[0013] Preferably, a stepped groove is provided on the edge of the upper side surface of the second main board, and the bottom surface of the stepped groove is flush with the top of the second support rod and communicates with the slot.

[0014] Compared with the prior art, the utility model has the following beneficial effects: the utility model is provided with a snap column and a snap groove, a support rod and a slot, and the size of the snap column is smaller than the size of the snap groove, and the diameter of the support rod is smaller than the diameter of the slot, so that a gap can be formed in the snap groove and the slot to form a casting space, which provides convenience for concrete casting and forces the snap column to be stably installed in the snap groove and the support rod to be stably installed in the slot after solidification, and concrete casting can be achieved without building a template, thereby improving the efficiency of concrete slab connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of a first connection solid of adjacent plates of the utility model;

[0016] Figure 2 It is a schematic diagram of the first three-dimensional structure of the plate body of the utility model;

[0017] Figure 3 It is a schematic diagram of the second three-dimensional structure of the plate body of the utility model;

[0018] Figure 4 It is a three-dimensional structural schematic diagram of the first connecting member of the utility model;

[0019] Figure 5 It is a structural schematic diagram of the second connection solid of adjacent plates of the utility model;

[0020] Figure 6 It is a schematic diagram of the third three-dimensional structure of the board body of the utility model;

[0021] Figure 7 It is a schematic diagram of the first three-dimensional structure of the second connecting member of the utility model;

[0022] Figure 8 It is a schematic diagram of the second three-dimensional structure of the second connecting member of the utility model;

[0023] Fig. 9 It is a structural schematic diagram of the third connecting body of adjacent plates of the utility model;

[0024] Fig.10 It is a schematic diagram of the structure of the fourth three-dimensional plate of the utility model;

[0025] Fig.11 It is a three-dimensional structural schematic diagram of the second connecting piece of the utility model.

[0026] In the figure: 1, plate body; 11, first snap-on column; 12, snap-on groove; 13, slot; 14, injection hole; 15, protrusion; 2, first connecting member; 21, second snap-on column; 3, second connecting member; 31, first main board; 32, first support rod; 33, first protrusion rod; 4, third connecting member; 41, second main board; 42, second support rod; 43, second protrusion rod; 44, stepped groove. DETAILED DESCRIPTION

[0027] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] The following is a further description with reference to the accompanying drawings and specific embodiments:

[0029] Example 1

[0030] like Figure 1 , Figure 2 As shown, a connection structure of a UHPC ultra-high performance concrete slab comprises two adjacent slab bodies 1, wherein a first snap-in column 11 is arranged on the same side edge of the two slab bodies 1, and a snap-in groove 12 is arranged on the other side edge, and the height of the first snap-in column 11 and the snap-in groove 12 are equal, and both are smaller than the thickness of the slab body 1. Therefore, when the two slab bodies 1 are spliced ​​and connected, the first snap-in column 11 is located in the snap-in groove 12 of the adjacent slab body 1. Since the diameter of the first snap-in column 11 is smaller than the diameter of the snap-in groove 12, a gap is left in the snap-in groove 12. In order to ensure that the adjacent slab bodies 1 are stably connected, concrete is poured in the gap between the first snap-in column 11 and the snap-in groove 12. After the concrete solidifies, the first snap-in column 11 is forced to be stably installed in the snap-in groove 12. With this arrangement, concrete pouring can be achieved without building a formwork, thereby improving the efficiency of concrete slab connection.

[0031] Example 2

[0032] like Figure 1 , Figure 3 , Figure 4 As shown, a connection structure of a UHPC ultra-high performance concrete slab comprises two adjacent slab bodies 1, a connection piece is arranged at the intersection of the adjacent slab bodies 1, the connection piece is arranged as a first connection piece 2, the first connection piece 2 comprises two symmetrical and fixedly connected second snap-in columns 21, a snap-in groove 12 is arranged on the edge of the slab body 1, the second snap-in column 21 is located in the snap-in groove 12, the height of the second snap-in column 21 is equal to that of the snap-in groove 12 and is smaller than the thickness of the slab body 1, the diameter of the second snap-in column 21 is smaller than the diameter of the snap-in groove 12, and concrete is poured in the gap between the second snap-in column 21 and the snap-in groove 12. When two plates 1 are spliced ​​and connected, the second snap column 21 is located in the snap groove 12 of the adjacent plate 1. Because the diameter of the second snap column 21 is smaller than the diameter of the snap groove 12, a gap is left in the snap groove 12. In order to ensure that the adjacent plate bodies 1 are stably connected, concrete is poured in the gap between the second snap column 21 and the snap groove 12. After the concrete solidifies, the second snap column 21 is forced to be stably installed in the snap groove 12. This arrangement allows concrete pouring without building a formwork, thereby improving the efficiency of concrete slab connection.

[0033] Example 3

[0034] like Figure 5 , Figure 6 , Figure 7As shown, a connection structure of a UHPC ultra-high performance concrete slab comprises two adjacent slab bodies 1, a connecting member is arranged at the intersection of the adjacent slab bodies 1, the connecting member is arranged as a second connecting member 3, the second connecting member 3 comprises a first main board 31 and a plurality of first support rods 32, the plurality of first support rods 32 are vertically arranged on both sides of the first main board 31, a slot 13 is arranged on the side wall of the slab body 1, the height of the first main board 31 is equal to the height of the slab body 1, the length of the first support rod 32 is equal to the length of the slot 13, and the diameter is smaller than the diameter of the slot 13, and injection holes 14 are arranged on the side walls of the slot 13. When two plates 1 are spliced ​​and connected, the second connecting member 3 is placed between the two plates 1, and the first support rod 32 extends into the slot 13. Since the diameter of the first support rod 32 is smaller than the diameter of the slot 13, a gap is left in the slot 13. In addition, an injection hole 14 is provided on the slot 13. In order to ensure that adjacent plates 1 are stably connected, an adhesive (such as concrete) can be injected into the slot 13 through the injection hole 14. After the adhesive (such as concrete) solidifies, the first support rod 32 is forced to be stably installed in the slot 13. With this arrangement, concrete pouring can be achieved without building a formwork, thereby improving the efficiency of concrete slab connection.

[0035] like Figure 8 As shown, in order to enhance the connection strength between the first support rod 32 and the plate body 1, a plurality of first protrusions 33 may be provided on the side wall of the first support rod 32, and the ends of the first protrusions 33 may contact the side walls of the slot 13. After the adhesive (such as concrete) solidifies, the presence of the first protrusions 33 correspondingly increases the resistance of the first support rod 32 to movement relative to the slot 13.

[0036] Example 4

[0037] like Fig. 9 , Fig.10 , Fig.11As shown, the connecting member is configured as a third connecting member 4, and the third connecting member 4 includes a second main board 41 and a plurality of second support rods 42, the plurality of second support rods 42 are vertically arranged on both sides of the second main board 41, a slot 13 is arranged on the side wall of the plate body 1, the height of the second main board 41 is equal to the height of the plate body 1, the second support rod 42 is inserted into the slot 13, the length of the second support rod 42 is equal to the length of the slot 13, and the diameter is smaller than the diameter of the slot 13, and an injection hole 14 is arranged on the side wall of the slot 13, and in addition, a second protrusion 43 can be arranged on the second support rod 42, and the end of the second protrusion 43 can contact the side wall of the slot 13. When two plates 1 are spliced ​​and connected, the third connecting member 4 is placed between the two plates 1, and the second support rod 42 extends into the slot 13. Because the diameter of the second support rod 42 is smaller than the diameter of the slot 13, a gap is left in the slot 13. In addition, an injection hole 14 is provided on the slot 13. In order to ensure that the adjacent plates 1 are stably connected, an adhesive (such as concrete) can be injected into the slot 13 through the injection hole 14. After the adhesive (such as concrete) solidifies, the second support rod 42 is forced to be stably installed in the slot 13. This arrangement can realize the pouring of concrete without building a template, thereby improving the efficiency of concrete slab connection.

[0038] like Fig.11 As shown, in addition, the injection hole 14 may not be provided, then a stepped groove 44 needs to be provided on the edge of the upper side of the second main board 41, the bottom surface of the stepped groove 44 is flush with the top of the second support rod 42, and is connected to the slot 13. After the third connecting member 4 contacts the board body 1, an adhesive (such as concrete) can be injected into the stepped groove 44, and the adhesive (such as concrete) will flow from the stepped groove 44 to the slot 13. A protrusion 15 can also be provided on the board body 1, and the protrusion 15 contacts the end of the stepped groove 44, thereby limiting the stable placement of the second main board 41 relative to the board body 1.

[0039] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be modified and varied in various ways. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A connection structure of UHPC ultra-high performance concrete slab, characterized in that: The invention comprises two adjacently arranged plates (1), wherein a groove is arranged on the side wall of the plate (1), and a connecting piece is arranged at the intersection of adjacent plate (1), wherein the connecting piece comprises a convex piece adapted to the groove, wherein the size of the convex piece is smaller than the size of the groove, and concrete is poured in the gap between the groove and the convex piece.

2. The connection structure of a UHPC ultra-high performance concrete slab according to claim 1, characterized in that: The connecting member can be configured as a first snap-in column (11), the first snap-in column (11) being fixedly arranged on an edge of a plate body (1), a snap-in groove (12) being arranged on another edge of the plate body (1), and the first snap-in column (11) being located in the snap-in groove (12) of an adjacent plate body (1).

3. The connection structure of a UHPC ultra-high performance concrete slab according to claim 2, characterized in that: The first snap-in column (11) and the snap-in groove (12) have the same height and are both smaller than the thickness of the plate body (1); the diameter of the first snap-in column (11) is smaller than the diameter of the snap-in groove (12); and concrete is poured in the gap between the first snap-in column (11) and the snap-in groove (12).

4. The connection structure of a UHPC ultra-high performance concrete slab according to claim 1, characterized in that: The connecting member is configured as a first connecting member (2), the first connecting member (2) comprising two symmetrical and fixedly connected second snap-in columns (21), a snap-in groove (12) being provided on the edge of the plate body (1), the second snap-in column (21) being located in the snap-in groove (12), the heights of the second snap-in column (21) and the snap-in groove (12) being equal and smaller than the thickness of the plate body (1), the diameter of the second snap-in column (21) being smaller than the diameter of the snap-in groove (12), and concrete being poured in the gap between the second snap-in column (21) and the snap-in groove (12).

5. The connection structure of a UHPC ultra-high performance concrete slab according to claim 1, characterized in that: The connecting member is configured as a second connecting member (3), the second connecting member (3) comprising a first main board (31) and a plurality of first support rods (32), the plurality of first support rods (32) being vertically arranged on both sides of the first main board (31), a slot (13) being arranged on the side wall of the plate body (1), the height of the first main board (31) being equal to the height of the plate body (1), and the first support rods (32) being inserted into the slot (13).

6. The connection structure of a UHPC ultra-high performance concrete slab according to claim 5, characterized in that: The length of the first support rod (32) is equal to that of the slot (13), and the diameter is smaller than the diameter of the slot (13). The side wall of the slot (13) is provided with injection holes (14) in communication therewith. A plurality of first protruding rods (33) are provided on the side wall of the first support rod (32), and the ends of the first protruding rods (33) can contact the side wall of the slot (13).

7. The connection structure of a UHPC ultra-high performance concrete slab according to claim 1, characterized in that: The connecting member is configured as a third connecting member (4), and the third connecting member (4) comprises a second main board (41) and a plurality of second supporting rods (42), wherein the plurality of second supporting rods (42) are vertically arranged on both sides of the second main board (41), a slot (13) is arranged on the side wall of the plate body (1), the height of the second main board (41) is equal to the height of the plate body (1), and the second supporting rods (42) are inserted into the slot (13).

8. The connection structure of a UHPC ultra-high performance concrete slab according to claim 7, characterized in that: A stepped groove (44) is provided on the edge of the upper side of the second main board (41); the bottom surface of the stepped groove (44) is flush with the top of the second support rod (42) and communicates with the slot (13).

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