CN108297247A - A kind of production method of superimposed sheet, superimposed sheet production equipment and superimposed sheet - Google Patents

Abstract

The present invention provides a kind of superimposed sheet, the production methods of superimposed sheet production equipment and superimposed sheet, this superimposed sheet includes the plate body of a rectangle, longitudinal reinforcement and transverse steel are embedded in plate body, the upper surface of the plate body is vertically arranged with several columns V-type convex ribs, plate body upper surface between adjacent two row V-type convex ribs longitudinally offers the limiting slot of indent, this superimposed sheet further includes the reinforcing rib for the arc being arranged at limiting slot, the both ends of the reinforcing rib are embedded in plate body, and the both ends of the reinforcing rib are separately fixed on the transverse steel in plate body；This method includes rolling steel bar framework, die-filling, fixed fluting template, cast, solidification form removal.The present invention has many advantages, such as that superimposed sheet adhesion strength is high, production efficiency is high.

Description

A kind of laminated board, laminated board production equipment and the production method of laminated board

technical field

The invention belongs to the technical field of building materials, and relates to a laminated board, production equipment for the laminated board and a production method for the laminated board.

Background technique

The reinforced concrete floor slabs used in China include cast-in-place slabs and prefabricated slabs. The cast-in-place slabs have good integrity, but formwork is required on site, and then concrete is poured. The construction period is difficult, the loss of formwork is large, and the cost is high. Precast slabs do not require on-site formwork. , the construction period is short, and the cost is low, but the existing laminated slabs have poor performance in terms of bonding new and old concrete. When the curing environment is not ideal, it is easy to form cracks or even peeling off of the old and new concrete.

Contents of the invention

The first object of the present invention is to provide a laminated slab for the above-mentioned problems existing in the prior art. The technical problem to be solved by the present invention is how to improve the bond strength between new and old concrete of the laminated slab.

The purpose of the present invention can be achieved through the following technical solutions: a composite panel, characterized in that the composite panel comprises a rectangular plate body, and longitudinal steel bars and transverse steel bars are embedded in the plate body, and the upper end surface of the plate body is longitudinally arranged There are several rows of V-shaped ribs, and the upper surface of the board between two adjacent rows of V-shaped ribs is longitudinally provided with concave limiting grooves. The laminated plate also includes arc-shaped reinforcing ribs arranged at the limiting grooves. , both ends of the reinforcing ribs are buried in the plate body, and the two ends of the reinforcing ribs are respectively fixed on the transverse steel bars in the plate body.

Setting the limit groove on the plate body can increase the bonding area between the old and new concrete, and improve the bonding strength and firmness between the old and new concrete.

The purpose of setting reinforcement ribs at the limit groove is to increase the connection strength between the old and new concrete at the limit groove. By embedding steel bars at the limit groove, the bonding between the old and new concrete can be made higher. The rib realizes the connection between the two.

In the above-mentioned laminated plate, the V-shaped ribs correspond to the reinforcing ribs one by one, and the reinforcing ribs and the V-shaped ribs on the same horizontal straight line are metal strips with an integrated structure, and the metal strips are located in the V-shaped The part between the convex rib and the reinforcing rib is wound on the transverse reinforcement.

The strength, position stability and reliability of the V-shaped ribs and reinforcing ribs can be realized through their integrated structure, which avoids the detachment and relaxation of the reinforcing ribs or V-shaped ribs during transportation and construction.

In the above-mentioned laminated plate, the V-shaped ribs on the same longitudinal axis are connected by a tie rod, and the tie rod is a threaded steel bar.

In the above-mentioned laminated slab, the longitudinal steel bar is embedded directly below the limiting groove; both ends of the longitudinal steel bar protrude out of the slab body.

The second object of the present invention is to provide a production equipment for laminated boards to improve the processing efficiency of the above-mentioned laminated boards in view of the defects existing in the prior art.

A kind of production equipment of laminated board, it is characterized in that, this production equipment comprises two horizontal formworks and two longitudinal formworks, the two ends of described transverse formworks are detachably connected between the two ends of two vertical formworks respectively; The upper surface of the template is provided with a notch corresponding to the limit groove one by one, and a slotted template is arranged between the corresponding notches between the two transverse templates, and the lower surface of the slotted template is adapted to the notch. curved surface, the upper surface of the slotted formwork is a plane on the same plane as the upper end surface of the transverse formwork, and positioning holes corresponding to the longitudinal reinforcement bars are provided on the said transverse formwork formwork, and the two ends of the longitudinal reinforcement bars can be inserted It is arranged in the positioning hole; the two ends of the slotted formwork are detachably connected to the longitudinal reinforcement below the notch through a connecting component.

The production equipment is convenient to disassemble and assemble, and can cooperate with the preparation of new laminated boards to improve production efficiency.

In the above-mentioned production equipment for laminated panels, the connecting assembly includes two mounting holes opened at the ends of the slotted formwork, and the connecting assembly also includes a U-shaped connecting rod, and the two ends of the connecting rod can be They are respectively inserted in the two installation holes, and the two ends of the connecting rod and the longitudinal steel bars are tightened by steel wires.

The third object of the present invention is to provide a method for producing laminated boards to improve production efficiency and production quality, aiming at the defects of the prior art.

A kind of production method of laminated board, it is characterized in that, this production method comprises the following steps:

A. Binding steel bar frame: tie the horizontal steel bars and longitudinal steel bars into a rectangular lattice frame according to the spacing requirements. The strips are wound sequentially from the transverse steel bars to make V-shaped convex ribs and reinforcing ribs;

B. Molding: Lay down the reinforced steel frame on the flat ground, wrap it between the horizontal formwork and the longitudinal formwork through the assembly of the horizontal formwork and the longitudinal formwork, and insert the protruding part of the longitudinal reinforcement set in the positioning hole;

C. Fix the slotted formwork: put the slotted formwork between two horizontal formworks, and make the curved surface of the slotted formwork correspond to the notch; insert the connecting rod in the installation hole so that the end protrudes from the horizontal steel bar Under the end of the connecting rod, the two ends of the connecting rod and the protruding part of the transverse steel bar are fixed by tying wires; wherein, the slotted formwork is inserted between the reinforcing rib and the limiting groove;

D. Pouring: pour concrete in the mold frame and tamp it with a vibrating pump;

E. Curing and formwork removal: After the concrete is cured, remove the horizontal formwork and longitudinal formwork, pull away from the groove formwork, tighten the reinforcement from the middle, and rotate the tie head formed after tightening to the direction facing the limit groove , that is, the preparation of the laminated plate is completed.

There is a problem in this laminated slab, that is, there are many unreinforced parts between the limit groove part of the laminated slab and the new concrete, so reinforcement ribs are set, and after the preparation is completed, the middle part of the reinforcement ribs is fastened, and the binding Head down can improve the bonding strength between the new concrete and the laminated slab, so that the cured slab surface of the new concrete extends below the laminated slab, and partly lies above the laminated slab, and the reinforcement of the laminated slab is embedded , the strength is greatly improved.

Description of drawings

Fig. 1 is a schematic diagram of the three-dimensional structure of the laminated board.

Figure 2 is a cross-sectional view of the laminate before curing.

Figure 3 is a cross-sectional view of the laminate after curing.

Fig. 4 is a structural schematic diagram of the laminated board production equipment.

Fig. 5 is a cross-sectional view along the direction A in Fig. 4 .

In the figure, 1. Plate body; 11. Limiting groove; 21. Longitudinal reinforcement; 22. Transverse reinforcement; 31. V-shaped rib; 32. Reinforcing rib; 43, notch; 44, slotting template; 51, positioning hole; 52, installation hole; 53, connecting rod.

Detailed ways

The following are specific embodiments of the present invention and in conjunction with the accompanying drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

As shown in Fig. 1 and Fig. 2, the laminated slab includes a rectangular slab body 1, the slab body 1 is embedded with longitudinal steel bars 21 and transverse steel bars 22, and the upper end surface of the slab body 1 is longitudinally provided with several rows of V-shaped ribs 31. The upper surface of the plate body 1 between two adjacent rows of V-shaped ribs 31 is longitudinally provided with a concave limiting groove 11, and the laminated plate also includes an arc-shaped reinforcing rib 32 arranged at the limiting groove 11 to strengthen Both ends of the ribs 32 are embedded in the panel body 1 , and the two ends of the reinforcing ribs 32 are respectively fixed on the transverse steel bars 22 in the panel body 1 .

The limit groove 11 is provided on the plate body 1, which can increase the bonding area between the old and new concrete, and improve the bonding strength and firmness between the old and new concrete.

Reinforcing ribs 32 are set at the limit groove 11, the purpose of which is to increase the connection strength between the old and new concrete at the limit groove 11, and the bonding between the old and new concrete can be made stronger by embedding steel bars at the limit groove 11. High, the connection between the two is realized by the reinforcing rib 32.

The V-shaped ribs 31 correspond to the reinforcing ribs 32 one-to-one. The reinforcing ribs 32 and the V-shaped ribs 31 on the same horizontal straight line are metal strips with an integrated structure. The metal strips are located between the V-shaped ribs 31 and the reinforcing ribs 32. The part is wound on the transverse steel bar 22; the strength, positional stability and reliability of the V-shaped convex rib 31 and reinforcing rib 32 during construction can all be realized through their integrated structure, avoiding the The detachment and relaxation of the rib 32 or the V-shaped rib 31.

The V-shaped convex ribs 31 on the same longitudinal axis are connected by a tie rod 33, and the tie rod 33 is a threaded steel bar; the longitudinal steel bar 21 is buried directly below the limiting groove 11; both ends of the longitudinal steel bar 21 protrude from the plate body 1 outside.

As shown in Figure 4 and Figure 5, this production equipment comprises two horizontal templates 41 and two vertical templates 42, the two ends of the horizontal template 41 are detachably connected between the two ends of the two vertical templates 42 respectively; The upper surface is provided with a notch 43 corresponding to the limit groove 11 one by one, and a slotted template 44 is arranged between the corresponding notches 43 between the two transverse templates 41, and the lower surface of the slotted template 44 is the same as the notch 43. Adapted curved surface, the upper surface of the grooved formwork 44 is a plane on the same plane as the upper end surface of the transverse formwork 41, and the transverse formwork 41 is provided with positioning holes 51 corresponding to the longitudinal reinforcement bars 21 one by one, and the two longitudinal reinforcement bars 21 The end can be inserted into the positioning hole 51; the two ends of the slotted template 44 are detachably connected to the longitudinal reinforcement 21 below the notch 43 through a connecting assembly.

The production equipment is convenient to disassemble and assemble, and can cooperate with the preparation of new laminated boards to improve production efficiency.

The connecting assembly includes two mounting holes 52 provided at the ends of the slotted template 44. The connecting assembly also includes a U-shaped connecting rod 53. The two ends of the connecting rod 53 can be respectively inserted in the two mounting holes 52 to connect Between the two ends of the rod 53 and the longitudinal reinforcement 21, a steel wire is used to tighten the hoop.

A kind of production method of laminated board, this production method comprises the steps:

A. Binding steel bar frame: tie the horizontal steel bar 22 and the longitudinal steel bar 21 into a rectangular lattice frame according to the spacing requirements. The metal strips are sequentially wound from the transverse steel bars 22 to make V-shaped convex ribs 31 and reinforcing ribs 32;

B, mold loading: put the steel bar frame that has been tied down on the flat ground, make it be wrapped between the horizontal formwork 41 and the longitudinal formwork 42 through the assembly of the transverse formwork 41 and the longitudinal formwork 42, and place the longitudinal reinforcement 21 The protruding part is inserted in the positioning hole 51;

C, fixed slotting template 44: the slotting template 44 is built between two horizontal templates 41, and the curved surface of the slotting template 44 corresponds to the notch 43; the connecting rod 53 is inserted in the mounting hole 52, so that Its end stretches out below the end of transverse reinforcing bar 22, and the two ends of connecting rod 53 and the protruding part of transverse reinforcing bar 22 are fixed by binding wire; between grooves 11; as shown in Figure 2.

D. Pouring: pour concrete in the mold frame and tamp it with a vibrating pump;

E. Curing formwork removal: After the concrete is cured, remove the horizontal formwork 41 and the longitudinal formwork 42, pull out the groove formwork 44, tighten the reinforcing rib 32 from the middle, and rotate the tie head formed after tightening to its direction limit The direction of the slot 11 is to complete the preparation of the laminated board; as shown in FIG. 3 .

There is a problem in this laminated slab, that is, there are many unreinforced parts between the limiting groove 11 part of the laminated slab and the new concrete, and the reinforcing rib 32 is set, and after the preparation is completed, the middle part of the reinforcing rib 32 is tied tightly, Putting the head down can improve the bonding strength between the new concrete and the laminated slab, so that the cured slab surface of the new concrete extends below the laminated slab, and part of it is located above the laminated slab, and both have a laminated slab. Embedded with steel bars, the strength is greatly improved.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which the present invention belongs can make various modifications or supplements to the described specific embodiments or adopt similar methods to replace them, but they will not deviate from the spirit of the present invention or go beyond the definition of the appended claims range.

Claims (7)

1. a kind of superimposed sheet, which is characterized in that this superimposed sheet includes the plate body (1) of a rectangle, and longitudinal steel is embedded in plate body (1) The upper surface of muscle (21) and transverse steel (22), the plate body (1) is vertically arranged with several columns V-type convex ribs (31), adjacent two row V Plate body (1) upper surface between type convex ribs (31) longitudinally offers the limiting slot (11) of indent, this superimposed sheet further includes that setting exists The both ends of the reinforcing rib (32) of arc at limiting slot (11), the reinforcing rib (32) are embedded in plate body (1), the reinforcement The both ends of muscle (32) are separately fixed on the transverse steel (22) in plate body (1).

2. a kind of superimposed sheet according to claim 1, which is characterized in that the V-type convex ribs (31) and reinforcing rib (32) are one by one Corresponding, reinforcing rib (32) and V-type convex ribs (31) on same lateral straight line are the metal strip in integral structure, the metal Item is located at the part between V-type convex ribs (31) and reinforcing rib (32) around being located on transverse steel (22).

3. a kind of superimposed sheet according to claim 2, which is characterized in that the V-type convex ribs (31) on same longitudinal axis Between by a pull rod (33) be connected, the pull rod (33) be spiral.

4. according to a kind of superimposed sheet of claims 1 or 2 or 3, which is characterized in that the longitudinal reinforcement (21) is embedded in limit The underface of slot (11)；The both ends of the longitudinal reinforcement (21) are stretched out except plate body (1).

5. a kind of production equipment of superimposed sheet, which is characterized in that this production equipment includes that two pieces of cross forms (41) and two pieces are vertical To template (42), it is detachably connected between the both ends of both ends two pieces of vertical frameworks (42) of difference of the cross form (41)；Institute State cross form (41) upper surface offer with the one-to-one recess (43) of limiting slot (11), two pieces of cross forms (41) it Between be provided with a fluting template (44) between corresponding recess (43), the lower surface of the fluting template (44) is and recess (43) The curved surface of adaptation, the upper surface of the fluting template (44) are and in the same plane flat in the upper surface of cross form (41) Face offers on the cross form (41) and the one-to-one location hole (51) of longitudinal reinforcement (21), the longitudinal reinforcement (21) both ends can be plugged in location hole (51)；The both ends of the fluting template (44) and longitudinal steel below recess (43) Muscle is detachably connected between (21) by a connection component.

6. a kind of production equipment of superimposed sheet according to claim 1, which is characterized in that the connection component includes being opened in Two mounting holes (52) of fluting template (44) end, this connection component further includes a U-shaped connecting rod (53), the connecting rod (53) both ends can be plugged in respectively in two mounting holes (52), the both ends and longitudinal reinforcement (21) of the connecting rod (53) it Between pass through steel wire lock ring.

7. a kind of production method of superimposed sheet, which is characterized in that this production method includes the following steps：

A, steel bar framework is rolled：Transverse steel (22) and longitudinal reinforcement (21) are rolled into rectangular grid frame according to pitch requirements Frame during rolling, first passes through tiny tied silk and carries out shaping, then turned over and turn 90 degrees, and positioning of fighting, by metal strip from V-type convex ribs (31) and reinforcing rib (32) are made in coiling successively on transverse steel (22)；

B, die-filling：The steel bar framework rolled was fallen in ground grading, cross form (41) and vertical framework (42) are passed through Assembling, so that it is wrapped between cross form (41) and vertical framework (42), and by the extension of longitudinal reinforcement (21) It is plugged in location hole (51)；

C, fixed fluting template (44)：Between the template (44) that will slot rides over two pieces of cross forms (41), and make fluting template (44) curved surface is corresponding with recess (43)；Connecting rod (53) is plugged in mounting hole (52), its end is made to stretch out transverse steel (22) under end, and the both ends of connecting rod (53) and the extension of transverse steel (22) are fixed by tied silk；Wherein, Fluting template (44) is plugged between reinforcing rib (32) and limiting slot (11)；

D, it pours into a mould：Concrete is poured into a mould in mold frame, and it is tamped using oscillating column pump；

E, cure form removal：After concrete curing, cross form (41) and vertical framework (42) are removed, fluting template is detached (44), the bundle head that reinforcing rib (32) is tightened from middle part, and formed after tightening is rotated to it towards limiting slot (11) The preparation of superimposed sheet is completed in direction.