One-step forming construction method for concrete molding lines of thermal insulation boards

Abstract

The invention discloses a one-time forming construction method for concrete molding lines of an insulation board, comprising the following steps: 1) laying out steel bars for an exterior wall structure, longitudinal bars and stirrups for molding lines, wherein the stirrups are also fixedly connected to the steel bars for the exterior wall structure; 2) hanging an insulation board, inserting an insulation hook into the insulation board and bending the hook on the inner side to hook the steel bars; 3) arranging a hollow filling box at an insulation board section corresponding to the exterior wall structure, laminating an outer plywood on the hollow filling box, and arranging an inner plywood on a side opposite to the inner side of the insulation board; 4) arranging an outer scaffolding steel pipe on the outer side of the outer plywood, and arranging a wooden beam between the outer scaffolding steel pipe and the outer plywood; arranging an inner scaffolding steel pipe on one side of the inner plywood, and arranging a wooden beam between the inner scaffolding steel pipe and the inner plywood; clamping the outer scaffolding steel pipe and the inner scaffolding steel pipe with tension bolts; 5) pouring concrete between the insulation board and the inner plywood, and vibrating and compacting the concrete. The present invention has the advantage of effectively combining the thermal insulation board, the molding and the external shear wall.

Description

Technical Field

[0001] The invention relates to a one-step forming construction method for concrete molding lines of a thermal insulation board. Background Art

[0002] With the development of real estate, people have higher and higher requirements for housing quality, appearance and overall environment of the community. In order to pursue the appearance effect, developers often design more styling lines. New lines include polystyrene insulation board (EPS), fiber cement composite material (GRC) and other materials. Although these lightweight materials can be used to create many special shapes and bring people a sense of beauty; however, in the later stage, there will be problems such as cracking of exterior wall lines, loose fixing of lines and falling off, which will bring great trouble to users. From a long-term perspective, it not only affects the appearance, but also poses a safety hazard, so it needs to be solved. Summary of the Invention

[0003] In order to solve the problem that the above-mentioned traditional molding lines often crack in the exterior wall lines and the lines are not firmly fixed and fall off in the later period of use, the present invention provides a one-time forming construction method for concrete molding lines of insulation boards.

[0004] The one-step forming construction method of the concrete molding lines of the thermal insulation board of the present invention comprises the following steps:

[0005] 1) Lay out the steel bars for the exterior wall structure, lay out the longitudinal bars for the moldings on the outside of the steel bars for the exterior wall structure, and then install the stirrups for the moldings. The stirrups for the moldings are also fixedly connected to the steel bars for the exterior wall structure;

[0006] 2) Install insulation boards for insulation of moldings and exterior wall structures, insert insulation hooks from the outside to the inside of the insulation boards, bend them at the inner steel bars and hook them onto the steel bars;

[0007] 3) The section of the insulation board located on the exterior wall structure side is used as the exterior wall structure insulation board section, the section located on the molding line side and parallel to the exterior wall structure insulation board section is used as the molding line insulation board section, and the section connecting the exterior wall structure insulation board section and the molding line insulation board section is used as the connecting insulation board section. A hollow filling box is provided on the exterior side of the exterior wall structure insulation board section. The exterior side of the hollow filling box is flush with the exterior side of the adjacent molding line insulation board section, and the exterior plywood is installed on the flush surface. The interior plywood for casting the exterior wall structure is provided on the side opposite to the interior side of the insulation board.

[0008] 4) An outer scaffolding steel pipe is set on the outer side of the outer plywood, and a number of wooden beams are sandwiched between the outer scaffolding steel pipe and the outer plywood; an inner scaffolding steel pipe is set on the side of the inner plywood away from the outer plywood, and a number of wooden beams are sandwiched between the inner scaffolding steel pipe and the inner plywood; a number of tension bolts are used to tension and clamp the outer scaffolding steel pipe and the inner scaffolding steel pipe;

[0009] 5) Pour concrete between the insulation board and the inner plywood, vibrate and compact it, and remove the formwork after reaching a certain strength. The insulation board, modeling lines and exterior wall structure will form an integrated whole.

[0010] In step 1), the stirrups of the moldings, the longitudinal reinforcement of the moldings, and the steel bars for the exterior wall structure are all fastened and fixedly connected using tying wire.

[0011] In step 2), the insulation board is an expanded glass bead insulation board; a tie wire is used to tightly tie the bend of the insulation hook to the steel bar it hooks.

[0012] In step 3), the side surface of the hollow filling box is closely attached to the connecting insulation board section.

[0013] In step 4), corresponding through holes are opened in the outer plywood, outer scaffolding steel pipe, insulation board, inner plywood and inner scaffolding steel pipe; the tension bolts include tension screw rods, tension bolt nuts and mountain-shaped clamps; a PVC pipe is inserted into the through hole of the insulation board, and the tension screw rods are inserted from the through hole of the plywood and scaffolding steel pipe on one side, and pass through the through hole of the plywood and scaffolding steel pipe on the other side through the PVC pipe, and then the mountain-shaped clamps and tension bolt nuts are respectively installed at both ends of the tension screw rods to tighten the outer scaffolding steel pipe and the inner scaffolding steel pipe.

[0014] Furthermore, the wooden beams corresponding to the insulation board section of the molding are denser than the wooden beams corresponding to the insulation board section of the exterior wall structure.

[0015] Furthermore, when installing moldings at the corners of the exterior wall structure, the wooden beams between the outer scaffolding steel pipes and the outer plywood at the corners are tightly fitted together as corner guards, and the wooden beams between the inner scaffolding steel pipes and the inner plywood at the corners are tightly fitted together as butt plugs.

[0016] Beneficial effects: The present invention can realize one-time cast-in-place of all facade lines or shapes using reinforced concrete components, main structure and insulation materials, without the need for secondary reinforcement and formwork and external insulation boards. That is, the insulation boards, modeling lines and external shear walls can be effectively combined together, achieving the performance of exterior wall insulation while meeting the exterior wall shape. The steel bars in the modeling lines are tied together with the steel bars of the main structure, and the insulation boards and steel bars are tightly tied and connected by insulation hooks. Only one full cast-in-place construction process is adopted, and the construction is convenient and fast, with a high safety factor and cost savings. Moreover, the obtained modeling lines are not only strong and durable, avoiding later maintenance, but also have good economic and social benefits and good promotion and application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic plan view of the one-step forming construction method of the concrete molding lines of the thermal insulation board of the present invention;

[0018] In the figure, 1. Corner guard; 2. Tie wire; 3. Insulation hook; 4. Longitudinal reinforcement; 5. Stirrups; 6. External scaffolding steel pipe; 7. Wooden beam; 8. External plywood; 9. Hollow filling box; 10. Insulation board; 11. External wall structure; 12. PVC pipe; 13. Tension screw; 14. Mountain clip; 15. Tension bolt and nut; 16. Inverted plug; 17. Modeling line; 18. Internal scaffolding steel pipe; 19. Internal plywood. Implementation Method

[0019] The present invention will now be further described in detail by way of embodiments with reference to the accompanying drawings, but the present invention is not limited to the embodiments.

[0020] like Figure 1 As shown, a one-time forming construction method for concrete molding lines of an insulation board includes the following steps.

[0021] 1) Lay out the reinforcement for the exterior wall structure 11. Lay out the longitudinal reinforcement 4 for the molding 17 outside the reinforcement for the exterior wall structure 11. Install the stirrups 5 for the molding 17. The stirrups 5 for the molding 17 are also securely connected to the reinforcement for the exterior wall structure 11. Tie wires 2 are used to securely connect the stirrups 5 for the molding 17 to the longitudinal reinforcement 4 for the molding 17 and the reinforcement for the exterior wall structure 11.

[0022] 2) Install insulation board 10, which is an expanded glass microsphere insulation board, to insulate moldings 17 and exterior wall structure 11. Insert insulation hooks 3 from the outside of insulation board 10 toward the inside, bend them around the inner rebar, and hook them around the rebar. Use tie wire 2 to secure the bend of insulation hook 3 to the rebar.

[0023] 3) A section of the insulation board 10 located on the side of the exterior wall structure 11 is used as the exterior wall structure insulation board section, a section located on the side of the molding line 17 and parallel to the exterior wall structure insulation board section is used as the molding line insulation board section, and a section connecting the exterior wall structure insulation board section and the molding line insulation board section is used as the connecting insulation board section. A pre-prepared hollow filling box 9 is set on the outer side surface of the exterior wall structure insulation board section. The outer side surface of the hollow filling box 9 is flush with the outer side surface of the adjacent molding line insulation board section, and an outer plywood 8 with a thickness of 15 mm is fitted on the flush surface. The side surface of the above-mentioned hollow filling box 9 is tightly attached to the connecting insulation board section, and an inner plywood 19 with a thickness of 15 mm for casting the exterior wall structure 11 is set on the side opposite to the inner side surface of the insulation board 10.

[0024] 4) Two φ48mm*3.5mm external scaffolding steel pipes 6 are installed on the outside of the outer plywood 8. Several 50*90mm wooden beams 7 are arranged as required between the external scaffolding steel pipes 6 and the outer plywood 8. Two φ48mm*3.5mm internal scaffolding steel pipes 18 are installed on the side of the inner plywood 19 away from the outer plywood 8. Several wooden beams 7 are arranged as required between the internal scaffolding steel pipes 18 and the inner plywood 19. The wooden beams 7 corresponding to the molding insulation board section are denser than those corresponding to the exterior wall structure insulation board section to enhance the molding effect. Several tension bolts are used to clamp the external scaffolding steel pipes 6 and the internal scaffolding steel pipes 18 in tension.

[0025] When installing the moldings 17 at the corners of the exterior wall structure 11, the wooden beams 7 between the outer scaffolding steel pipes 6 and the outer plywood 8 at the corners are tightly fitted together as corner guards 1, and the wooden beams 7 between the inner scaffolding steel pipes 18 and the inner plywood 19 at the corners are tightly fitted together as inverted plugs 16 to ensure that the corners are square and vertical, and the exposed ends of the outer scaffolding steel pipes 6 at the corners are ≥200 mm.

[0026] The above-mentioned use of several tension bolts is used to tension and clamp the outer scaffolding steel pipe 6 and the inner scaffolding steel pipe 18. Specifically, according to requirements, corresponding through holes are opened in the outer plywood 8, the outer scaffolding steel pipe 6, the insulation board 10, the inner plywood 19, and the inner scaffolding steel pipe 18, and the debris inside the through holes is cleaned; the tension bolts include φ12 round steel tension screws 13, φ12 tension bolt nuts 15 and mountain-shaped clips 14. A φ20 PVC pipe 12 with a wall thickness of more than 2mm is inserted into the through hole of the insulation board 10. The tension screw 13 is inserted into the through hole of the plywood and scaffolding steel pipe on one side, and passes through the through hole of the plywood and scaffolding steel pipe on the other side through the PVC pipe 12. Then the mountain-shaped clips 14 and tension bolt nuts 15 are respectively installed at both ends of the tension screw 13 to tension and tighten the outer scaffolding steel pipe 6 and the inner scaffolding steel pipe 18. The purpose of providing the PVC pipe 12 is to reuse the tension bolts.

[0027] 5) After the entire formwork system has been inspected for sturdiness and passed inspection, concrete is poured between the insulation board 10 and the inner plywood 19 and vibrated to compact it. Once it reaches a certain strength, the formwork is removed. The insulation board 10, moldings 17, and exterior wall structure 11 are integrated, eliminating secondary construction and improving the visual effect. Materials such as the plywood and hollow infill boxes 9 can be reused throughout each layer, saving costs.

[0028] The technologies not specifically mentioned above are all referenced to the existing technologies.

[0029] With the above-described preferred embodiments of the present invention as a guide, and with reference to the above description, relevant personnel are fully capable of making various changes and modifications without departing from the technical scope of this invention. The technical scope of this invention is not limited to the contents of the specification and must be determined according to the scope of the claims.

Claims

1. A one-step forming construction method for concrete molding lines of thermal insulation boards, characterized in that: The following steps are involved: 1) Lay out the steel bars for the exterior wall structure, lay out the longitudinal bars for the moldings on the outside of the steel bars for the exterior wall structure, and then install the stirrups for the moldings. The stirrups for the moldings are also fixedly connected to the steel bars for the exterior wall structure; 2) Install insulation boards for insulation of moldings and exterior wall structures, insert insulation hooks from the outside to the inside of the insulation boards, bend them at the inner steel bars and hook them onto the steel bars; 3) The section of the insulation board located on the exterior wall structure side is used as the exterior wall structure insulation board section, the section located on the molding line side and parallel to the exterior wall structure insulation board section is used as the molding line insulation board section, and the section connecting the exterior wall structure insulation board section and the molding line insulation board section is used as the connecting insulation board section. A hollow filling box is provided on the exterior side of the exterior wall structure insulation board section. The exterior side of the hollow filling box is flush with the exterior side of the adjacent molding line insulation board section, and the exterior plywood is installed on the flush surface. The interior plywood for casting the exterior wall structure is provided on the side opposite to the interior side of the insulation board. 4) An outer scaffolding steel pipe is set on the outer side of the outer plywood, and a number of wooden beams are sandwiched between the outer scaffolding steel pipe and the outer plywood; an inner scaffolding steel pipe is set on the side of the inner plywood away from the outer plywood, and a number of wooden beams are sandwiched between the inner scaffolding steel pipe and the inner plywood; a number of tension bolts are used to tension and clamp the outer scaffolding steel pipe and the inner scaffolding steel pipe; 5) Pour concrete between the insulation board and the inner plywood, vibrate and compact it, and remove the formwork after reaching a certain strength. The insulation board, modeling lines and exterior wall structure will form an integrated whole.

2. The one-step forming construction method of the concrete molding lines of the thermal insulation board according to claim 1 is characterized in that: In step 1), the stirrups of the moldings, the longitudinal reinforcement of the moldings, and the steel bars for the exterior wall structure are all fastened and fixedly connected using tying wire.

3. The one-step forming construction method of the concrete molding lines of the thermal insulation board according to claim 1 is characterized in that: In step 2), the insulation board is an expanded glass bead insulation board; a tie wire is used to tightly tie the bend of the insulation hook to the steel bar it hooks.

4. The one-step forming construction method of the concrete molding lines of the thermal insulation board according to claim 1 is characterized in that: In step 3), the side surface of the hollow filling box is closely attached to the connecting insulation board section.

5. The one-step forming construction method of the concrete molding lines of the thermal insulation board according to claim 1 is characterized in that: In step 4), corresponding through holes are opened in the outer plywood, outer scaffolding steel pipe, insulation board, inner plywood and inner scaffolding steel pipe; the tension bolts include tension screw rods, tension bolt nuts and mountain-shaped clamps; a PVC pipe is inserted into the through hole of the insulation board, and the tension screw rods are inserted from the through hole of the plywood and scaffolding steel pipe on one side, and pass through the through hole of the plywood and scaffolding steel pipe on the other side through the PVC pipe, and then the mountain-shaped clamps and tension bolt nuts are respectively installed at both ends of the tension screw rods to tighten the outer scaffolding steel pipe and the inner scaffolding steel pipe.

6. The one-step forming construction method for concrete molding lines of thermal insulation boards according to claim 5 is characterized in that: The wooden beams corresponding to the insulation board section of the molding lines are denser than the wooden beams corresponding to the insulation board section of the exterior wall structure.

7. The one-step forming construction method of the insulation board concrete molding according to claim 6 is characterized in that: When installing moldings at the corners of exterior wall structures, the wooden beams between the outer scaffolding steel pipes and the outer plywood at the corners are tightly fitted together as corner guards, and the wooden beams between the inner scaffolding steel pipes and the inner plywood at the corners are tightly fitted together as butt plugs.

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