CN105507462B - Have both the combined wall and its construction method of load-bearing and heat insulation function - Google Patents

Abstract

The invention discloses a composite wall with both load-bearing and thermal insulation functions and a construction method thereof. The composite wall comprises a polystyrene board located in the middle, steel mesh sheets arranged parallel to both sides of the polystyrene board, and interspersed with polystyrene boards. The insert wire on the board and the outer layer concrete and inner layer concrete poured on both sides of the polystyrene board. Welding; the wall pre-fixes the insulation board at the designed position, and pours concrete on the inside and outside of the insulation board, so that the insulation board and the concrete wall truly form an integrated structure, which can not only achieve heat preservation, but also prevent external installation of heat preservation The falling of the board affects the safety of use, and at the same time, it can shorten the construction period; this method pre-fixes the insulation board at the design position before the wall concrete is poured, and the wall construction can be completed by pouring the concrete, without waiting for the building structure to be completed before installing the insulation layer , shorten the construction period.

Description

Composite wall with both load-bearing and thermal insulation functions and its construction method

technical field

The invention relates to the technical field of building exterior walls, in particular to a composite wall with load-bearing and thermal insulation functions and a construction method thereof.

Background technique

There are many kinds of external wall insulation. The traditional external wall insulation is composed of polymer mortar, glass fiber mesh cloth, flame-retardant molded polystyrene foam board (EPS) or extruded board (XPS) and other materials. On-site bonding construction. The new thermal insulation and decoration integrated board is produced through the assembly line, which integrates the functions of thermal insulation, waterproof, and decorative surface. The preferred material for renovation is to install the thermal insulation and decoration integrated board on the outer wall of the building to achieve thermal insulation. Although the existing thermal insulation device integrated board has realized integrated production and standardized installation, the integrated thermal insulation and decoration board fixed on the outside of the wall The board still has the risk of falling off, and it is not integrated with the existing wall, so there is likely to be an air gap, which affects the thermal insulation effect and safety of use.

On the other hand, the existing thermal insulation and decoration integrated board needs to be installed after the building structure is completed, so as to prolong the construction period.

Contents of the invention

The technical problem to be solved by the present invention is to provide a composite wall with both load-bearing and thermal insulation functions. The thermal insulation board is poured between the outer concrete and the inner concrete without being fixed on the outside of the wall to form an integrated structure that is integrated with the wall. Concrete construction at the same time, shorten the construction period, there is no risk of falling off, to ensure safe use.

The technical problem to be solved by the present invention is to provide a composite wall construction method with both load-bearing and thermal insulation functions. Before the wall concrete is poured, the thermal insulation board is fixed in the design position in advance, and the concrete can be poured to complete the wall construction without waiting. After the building structure is completed, the insulation layer is installed to shorten the construction period.

In order to solve the above technical problems, the technical solution adopted by the present invention is: a composite wall with both load-bearing and thermal insulation functions, including a polystyrene board located in the middle, steel mesh sheets arranged in parallel on both sides of the polystyrene board, interspersed Insert wires on the polystyrene board and pour the outer layer concrete and the inner layer concrete on both sides of the polystyrene board, the insertion wires are obliquely inserted through the polystyrene board, and the two ends of the wire are respectively connected to the two sides of the polystyrene board Steel mesh welded.

The thickness of the outer layer of concrete is 50-60 mm, and the thickness of the inner layer of concrete is not less than 100 mm.

Two pieces of steel mesh are arranged in parallel on the inner side of the polystyrene board, and the wires are inserted obliquely through the polystyrene board and welded with three pieces of steel mesh.

The diameter of the reinforcing bar used in the reinforcing mesh sheet positioned inside the polystyrene board is 4 mm, and the diameter of the reinforcing bar used in the reinforcing mesh sheet positioned outside the polystyrene board is 3 mm.

The ends of the steel mesh sheets located on both sides of the polystyrene board are welded or bound with the steel bars at the columns or corners.

In order to solve the above-mentioned technical problems, the present invention also provides a composite wall construction method with both load-bearing and thermal insulation functions, which includes the following steps,

Step 1: Bound the edge members with steel bars, and prefabricated the insulation board at the same time;

The second step: hoisting insulation board;

The third step: connect the reinforcement mesh of the insulation board and the reinforcement of the edge member;

The fourth step: wall formwork support;

The fifth step: wall concrete pouring;

Step 6: Formwork removal;

The seventh step: wall concrete maintenance;

The edge components described in the first step include structural columns and wall corners. The structural columns and wall corners are bound with main reinforcement and stirrups according to the design requirements. The prefabrication process of the insulation board includes preparing polystyrene boards and installing wire insertion. The insertion method is evenly inserted on the polystyrene board and penetrates the polystyrene board. The two ends of the insertion wire penetrating the polystyrene board are respectively welded to the steel mesh on both sides of the polystyrene board, and a piece of steel bar is set outside the polystyrene board. For the mesh, one or two pieces of steel mesh are arranged inside the polystyrene board, and positioning blocks are arranged on the steel mesh on both sides of the polystyrene board.

The second step includes hoisting the prefabricated insulation board into place with a tower crane, and fixing it with steel pipe supports in advance according to the design position. Connected by tying.

The fourth step includes using steel pipe brackets to support the inner formwork and the outer formwork on both sides of the insulation board, and adjusting the distance between the inner formwork and the outer formwork by interspersing tension bars.

Self-compacting concrete is used in the concrete pouring process. After the formwork is removed, curing fluid is applied to the surface of the inner concrete and the outer concrete.

The beneficial effect of adopting the above technical solution is that by pre-fixing the insulation board at the designed position, and pouring concrete on the inside and outside of the insulation board, the insulation board and the concrete wall can truly form an integrated structure, which can not only realize heat preservation, but also It can prevent the externally installed insulation board from falling and affect the safety of use, and can shorten the construction period at the same time.

The beneficial effect of adopting the above-mentioned technical solution is that: by pre-fixing the insulation board at the designed position before the concrete pouring of the wall, the wall construction can be completed by pouring the concrete, and there is no need to wait for the completion of the building structure before installing the insulation layer, shortening the construction period .

Description of drawings

Fig. 1 is the composite wall structure schematic diagram of the present invention;

Fig. 2 is a schematic diagram of the section structure of the insulation board of the present invention;

In the accompanying drawings: 1. Surface layer; 2. Inner layer concrete; 3. Inserting wire; 4. Steel mesh; 5. Polystyrene board; 6. Outer layer concrete.

Detailed ways

The technical solutions in the embodiments of the present invention are clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

In the following description, a lot of specific details are set forth in order to fully understand the present invention, but the present invention can also be implemented in other ways different from those described here, and those skilled in the art can do it without departing from the meaning of the present invention. By analogy, the present invention is therefore not limited to the specific examples disclosed below.

As shown in Figure 1-2, the present invention discloses a composite wall with both load-bearing and thermal insulation functions, including a polystyrene board 5 located in the middle, steel mesh sheets 4 parallel to both sides of the polystyrene board 5, interspersed Inserting wire 3 on the polystyrene board 5 and pouring the outer layer concrete 6 and the inner layer concrete 2 on both sides of the polystyrene board 5, the insertion wire 3 is obliquely inserted through the polystyrene board 5, and its two ends are connected with the polystyrene board 5 respectively. The reinforcement mesh sheets 4 located on both sides of the polystyrene board 5 are welded; the thickness of the outer layer of concrete 6 is 50-60 mm, and the thickness of the inner layer of concrete 2 is not less than 100 mm; the inside of the polystyrene board 5 is provided with two parallel sheets Reinforcing mesh sheet 4, insertion wire 3 obliquely inserts and welds with three reinforcement mesh sheets 4 after passing through polystyrene board 5; The steel bar diameter that the described reinforcement mesh sheet 4 that is positioned at polystyrene board 5 inner side adopts is 4 millimeters, and described The diameter of steel bar used in the reinforcement mesh 4 outside the polystyrene board 5 is 3 millimeters; the ends of the reinforcement mesh 4 positioned on both sides of the polystyrene board 5 are welded or bound with the reinforcement at the column or corner.

In the specific application process, the present invention pre-fixes the insulation board at the designed position, and pours concrete on the inside and outside of the insulation board, so that the insulation board and the concrete wall truly form an integrated structure, which can not only realize heat preservation, but also prevent external The fall of the installed insulation board affects the safety of use, and can shorten the construction period at the same time.

The invention also discloses a construction method for a composite wall with load-bearing and thermal insulation functions, which includes the following steps:

Step 1: Bound the edge members with reinforcement, and prefabricated the insulation board; the edge members described in the first step include structural columns and wall corners, and the structural columns and wall corners are bound according to the design requirements. Prepare the polystyrene board 5, install the insertion wire 3, the insertion wire 3 is evenly inserted on the polystyrene board 5 by three-dimensional oblique insertion, and penetrates the polystyrene board 5, and penetrates both ends of the insertion wire 3 of the polystyrene board 5 Weld with the reinforcement mesh 4 on both sides of the polystyrene board 5 respectively, a reinforcement mesh 4 is arranged on the outside of the polystyrene board 5, and one or two reinforcement mesh 4 are arranged on the inside of the polystyrene board 5, and the polystyrene board 5 Positioning blocks are arranged on the reinforcement mesh sheets 4 on both sides.

The second step: hoisting insulation board;

The third step: connect the reinforcement mesh 4 of the insulation board and the steel bars of the edge members; the second step includes hoisting the prefabricated insulation board into place with a tower crane, and fixing it with steel pipe supports in advance according to the design position; the third step includes hoisting the prefabricated insulation board into place. The reinforcement mesh sheet 4 of the thermal insulation board is connected with the steel bars of the edge components by welding or binding.

The fourth step: wall formwork support; the fourth step includes using steel pipe brackets to support the inner formwork and the outer formwork on both sides of the insulation board, and the inner formwork and the outer formwork are adjusted by interspersed tension bars.

The fifth step: wall concrete pouring;

Step 6: Formwork removal;

The seventh step: wall concrete maintenance;

Self-compacting concrete is used in the concrete pouring process. After the formwork is removed, curing fluid is applied to the surface of the inner concrete and the outer concrete.

In the specific application process, the present invention pre-fixes the insulation board at the designed position before pouring the concrete on the wall, and the wall construction can be completed by pouring the concrete, without waiting for the completion of the building structure before installing the insulation layer, shortening the construction period.

Claims (5)

1. the combined wall construction method of load-bearing and heat insulation function is had both, using the composite wall for having both load-bearing and heat insulation function The wall body structure that body construction method is constructed includes the styrofoam (5) for being located at middle part, the parallel steel set on styrofoam (5) both sides Muscle mesh sheet (4), the plugging wire (3) being interspersed in styrofoam (5) and the outer concrete (6) for being cast in styrofoam (5) both sides with it is interior Layer concrete (2), steel of plugging wire (3) oblique cutting across styrofoam (5) and its both ends respectively and positioned at styrofoam (5) both sides Muscle mesh sheet (4) is welded；Outer concrete (6) thickness is 50-60 millimeters, and interior layer concrete (2) thickness is not less than 100 Millimeter；Styrofoam (5) inside parallel setting two panels reinforced mesh (4), plugging wire (3) oblique cutting pass through styrofoam (5) afterwards with three Piece reinforced mesh (4) welds；Reinforced mesh (4) end positioned at styrofoam (5) both sides and cylinder or corner's steel bar welding It connects or binds；Have both the combined wall construction method of load-bearing and heat insulation function, it is characterised in that：Include the following steps,

The first step：Edge member reinforcing bar is bound, while precast heated board；

Second step：Lift thermal insulation board；

Third walks：The reinforcing bar of heat-insulation plate connecting reinforced mesh (4) and edge member will lift the reinforced mesh of thermal insulation board in place (4) it with the bar connecting of edge member, is connected by the way of welding or binding；

4th step：Wall form supporting；

5th step：Walls concrete is poured into a mould；

6th step：Form removable；

7th step：Walls concrete conserves；

Second step includes using steel pipe support fix warming plate in advance according to design position；

4th step includes using steel pipe support in thermal insulation board both sides supporting inner side template and outboard template, inner side template and outer side mold Plate adjusts spacing by the way of interspersed lacing wire.

2. the combined wall construction method according to claim 1 for having both load-bearing and heat insulation function, it is characterised in that：First The step edge member includes structural column and wall turning, and structural column and wall turning bind main reinforcement and hoop according to design requirement Muscle, thermal insulation board prefabrication process include preparing styrofoam (5), installation plugging wire (3), and plugging wire (3) is uniform by the way of three-dimensional oblique cutting Be inserted into styrofoam (5) and penetrate styrofoam (5), penetrate plugging wire (3) both ends of styrofoam (5) respectively with positioned at styrofoam (5) reinforced mesh (4) welding of both sides, styrofoam (5) outside are arranged a piece of reinforced mesh (4), are arranged one on the inside of styrofoam (5) Piece or two panels reinforced mesh (4), and lay locating piece on the reinforced mesh (4) positioned at styrofoam (5) both sides.

3. the combined wall construction method according to claim 1 for having both load-bearing and heat insulation function, it is characterised in that：Second Step includes being lifted prefabricated thermal insulation board in place using tower crane.

4. the combined wall construction method according to claim 1 for having both load-bearing and heat insulation function, it is characterised in that：Coagulation Self-compacting concrete is used in native casting process, and maintenance is smeared in inside concrete and outside concrete surface after form removable Liquid.

5. the combined wall construction method according to claim 1 for having both load-bearing and heat insulation function, it is characterised in that：It is described Bar diameter used by reinforced mesh (4) on the inside of styrofoam (5) is 4 millimeters, described to be located on the outside of styrofoam (5) Bar diameter used by reinforced mesh (4) is 3 millimeters.