CN212866586U - Prefabricated wallboard and installation node thereof - Google Patents

Abstract

The invention discloses a prefabricated wallboard and an installation node thereof, which are used for solving the problem of light weight of the prefabricated wallboard in the prior art. The prefabricated wall panel comprises an inner cement mortar layer, an outer cement mortar layer and a heat preservation layer, wherein the heat preservation layer is composed of the heat preservation layer and a steel skeleton, the steel skeleton of a frame structure is completely wrapped in the heat preservation layer, the upper end and the lower end of the steel skeleton are provided with connecting parts, and at least one steel cable channel is arranged in the steel skeleton; and steel wire meshes are arranged in the inner cement mortar layer and the outer cement mortar layer and are connected with the steel framework into a whole through a thermal bridge-breaking component. Because the steel cable channel is arranged in the steel framework and the horizontal positions of the prefabricated wall board and the upright columns on the two sides are reinforced through the steel cable technology, the prefabricated wall board forms secondary connection in the horizontal position and forms a three-dimensional mounting node in a three-dimensional space with the upper end and the lower end of the steel framework, and the mounting effect and the anti-seismic effect of the prefabricated wall board are greatly improved.

Description

Prefabricated wallboard and installation node thereof

Technical Field

The utility model relates to an assembly type structure wallboard technical field.

Background

In a fabricated dwelling, the insulating sandwich wall panel is typically composed of two cement mortar layers on both sides and an insulating board layer in the middle, and is also referred to as a "sandwich panel". The sandwich structure arranges the heat-insulating layer inside like sandwich biscuits, so that the heat-insulating layer is not easy to be corroded by the external environment, and simultaneously, the wallboard has a good energy-saving effect due to the good cold and hot partition effect of the heat-insulating plate.

Among the prior art, among this kind of wallboard technique, use transition connectors such as reinforcing bar to connect the cement mortar layer of both sides usually, because transition connectors's both ends are pre-buried in the cement mortar layer, its joint strength is lower, and when external force took place, easy emergence fracture and droing between its and the cement mortar layer.

And further, the anti-cracking mesh cloth or the steel wire mesh is arranged in the cement mortar layer, so that the anti-cracking purpose is realized.

In the prior art, the technical defects of the sandwich prefabricated wall panel are mainly reflected in the following aspects:

1. the anti-bending capability of the wall body is poor, and when the size of the wall body is large, the inner cement mortar layer and the outer cement mortar layer are easy to crack with the inner heat insulation layer. For example, CN 106049744B is a foam concrete sandwich wall panel, which includes an inner leaf plate and an outer leaf plate, the edges of the inner leaf plate and the outer leaf plate are matched through tongue-and-groove strips, an insulation layer formed by cast-in-place is provided in the wall panel, reinforcing steel meshes are provided in the inner leaf plate and the outer leaf plate, and the two reinforcing steel meshes are connected together through truss ribs or glass fibers to form a whole. In the technology, the reinforcing mesh is used for preventing cracking of the inner and outer blades and improving the whole bending strength, the reinforcing mesh is known as a common building material, the reinforcing mesh has excellent tensile strength but poor bending performance, and the self weight of the reinforcing mesh is large due to the solid structure of the reinforcing mesh, so that in the technology, the whole bending resistance of the wallboard in the technology is usually realized by increasing the thickness of a cement mortar layer (namely, the inner and outer blades), namely, in the technology, the thickness in the cement mortar layer is usually designed to be large and cannot be smaller than 4 cm generally, and the larger the size of a prefabricated wallboard is, the larger the specification of the reinforcing mesh in the wallboard and the larger the thickness of the cement mortar layer are. Meanwhile, the inner and outer blades are connected with the heat-insulating layer only through the truss ribs and the glass fibers, so that a large amount of stress concentration exists between the connection points of the inner and outer blades, and cracks are easily generated between the inner and outer blades and the heat-insulating layer.

2. The structure is complicated and the weight is heavy, so that the construction is difficult. For example, CN 106223532B, an assembled concrete integral thermal-bridge-free wallboard, includes an inner row of hidden posts, an outer row of hidden posts, an inner row of insulating layers, an outer row of insulating layers, an inner concrete layer, an outer concrete layer, a middle concrete layer, an inner row of vertical connecting steel bars, an outer row of vertical connecting steel bars, reinforcing steel bars, moisture-proof insulating trapezoidal openings, an inner row of overhanging connecting hidden posts, and an outer row of overhanging connecting hidden posts; although the wallboard of this structure keeps warm energy-conserving effect better, its structure is complicated, and uses a large amount of reinforcing bars, and the dead weight is great, can not realize lightweight design objective.

3. The mounting joint strength of the wallboard is low. In the installation technique of present prefabricated wallboard, fix through the angle sign indicating number between wallboard and roof beam or the post, installation poor stability. Wall body and crossbeam or stand are connected respectively to the both ends of angle sign indicating number, destroy or warp the back when the angle sign indicating number, cause the installation of wallboard to become invalid easily. For example, CN 104963413B discloses a wallboard mounting connector and a method for mounting a wallboard, including a connector a and a connector B, where the connector a is an inverted T-shaped steel, and the connector B is an angle steel, when mounting, it is only necessary to align the wall embedded part a and the wall embedded part B with the connector a and the connector B, respectively, to quickly connect and mount the wallboard and the main structure, and further achieve the purpose of improving the mounting efficiency and the construction quality. In the technology, the wall board and the cross beam are simply connected, and when the connecting piece A or the connecting piece B fails, the wall board connected with the connecting piece A fails to be connected, so that the wall board falls off or even falls off at high altitude.

4. The seismic performance is poor, the current prefabricated wallboard does not have a seismic design concept, the current design only emphasizes the seismic performance of beam-column connecting nodes, and the seismic and energy consumption concepts of the prefabricated wallboard are not considered. So that, in the event of a violent earthquake, failure often occurs first at the location of the connection node between the prefabricated wall panel and the building body, which is harmful to the persons or things inside the building.

SUMMERY OF THE UTILITY MODEL

In order to solve the not enough of prior art, compromise lightweight, bending resistance, antidetonation, the utility model provides a prefabricated wallboard, this wallboard possesses good construction convenience simultaneously.

The utility model provides a technical scheme that its technical problem adopted does:

a prefabricated wall panel comprises an inner cement mortar layer, an outer cement mortar layer and a heat insulation layer positioned between the cement mortar layers, and is characterized in that,

the heat-insulating layer is composed of a heat-insulating layer and a steel skeleton, the steel skeleton of the framework structure is completely covered in the heat-insulating layer, the upper end and the lower end of the steel skeleton are provided with connecting parts, and at least one steel cable channel is arranged in the steel skeleton;

and steel wire meshes are arranged in the inner cement mortar layer and the outer cement mortar layer and are connected with the steel framework into a whole through a thermal bridge-breaking component.

The inner cement mortar layer and the outer cement mortar layer adopt cement mortar with high crack resistance.

The thickness of the single layer of the inner cement mortar layer and the single layer of the outer cement mortar layer are not more than two centimeters, and the best thickness is one centimeter.

The steel skeleton is a rectangular frame structure consisting of transverse and vertical steel pipes.

The steel skeleton is a 90-degree bending frame structure consisting of transverse and vertical steel pipes.

The steel cable channel is a steel pipe inner cavity which is horizontally penetrated through the steel skeleton.

The steel skeleton is a galvanized steel pipe welding part.

The installation node of the prefabricated wall panel in the fabricated building is positioned in the frame of the frame structure main body or outside the frame and is suitable for conventional fixing and dry hanging fixing, the node relates to a cross beam, a vertical column and the prefabricated wall panel, and is characterized in that,

the beam is provided with an embedded part;

the upright post is provided with a steel cable fixing perforation or a fixing lug plate;

the prefabricated wall board adopts the prefabricated wall board structure; and the connecting parts at the upper end and the lower end of the prefabricated wall plate are fixedly connected with the cross beam, at least one steel cable penetrates through a steel cable channel in the prefabricated wall plate, and the two ends of the steel cable are fixed at the steel cable fixing through holes or the fixing lug plates.

The steel cable is in a pre-tightening state.

The prefabricated wall panel is installed in the fabricated building as an inner partition panel.

The prefabricated wall panel is installed in the fabricated building as an outer partition panel.

The prefabricated wall panel has a 90 degree turning angle, characterized in that the prefabricated wall panel is installed in a fabricated building as an external corner wall panel.

No matter which application style, can both guarantee the good performance of this prefabricated wallboard.

The utility model has the advantages that:

1. the prefabricated wall panel has ultra-thin/ultra-light characteristics. Because the steel skeleton is made of seamless steel tubes, the steel skeleton has the characteristic of light weight compared with the traditional steel skeleton, and the integral bending strength is not reduced basically. Because the prefabricated wall board does not bear tension basically, the seamless steel pipe replaces a steel reinforcement framework, and the bending resistance of the steel reinforcement framework is fully utilized. The steel skeleton sets up in the heat preservation, has reduced the thickness requirement on interior surface cement mortar layer, and through the thickness size who increases steel skeleton and heat preservation, the combination of steel skeleton and heat preservation has the characteristics of light than the cement mortar layer for the whole dead weight of prefabricated wallboard reduces.

2. The prefabricated wall panel has good installation performance and adaptability. The prefabricated wall panel can be widely applied to dry hanging inside and outside the frame and installing the prefabricated wall panel at the external corner position, and the wall panel technology can basically meet the use requirements of most fabricated buildings.

3. The safety performance of the prefabricated wall panel is greatly improved. Because set up the cable wire passageway in this steel skeleton and carry out horizontal position's enhancement with the stand of prefabricated wallboard and both sides through the cable wire technique, make the utility model discloses well prefabricated wallboard has formed the secondary at horizontal position and has connected to form the three-dimensional installation node in the three-dimensional space about with the steel skeleton between the both ends, no matter be the installation effect of prefabricated wallboard or the antidetonation effect has all obtained very big improvement. Especially, the whole falling phenomenon of the prefabricated wall panel can be avoided, and the safety performance of the prefabricated wall panel in the high-rise building is improved.

4. Due to the application of the steel skeleton and the steel cable, the prefabricated wall panel can meet the design requirement of large span (height direction) in the height direction, and particularly can meet the installation and use requirements of wall veneers with the height of less than 10 meters.

5. Since the steel skeleton has better forming and shape-retaining properties than the steel bars, the prefabricated wall panel can be internally manufactured into a standard wall panel, an opposite-type wall panel or a corner wall panel, referring to fig. 12 and 17.

6. The cold-hot broken bridge is formed among the cement mortar layer, the heat insulation material and the steel skeleton through the broken bridge component, and the design specification requirement of the energy-saving building is met.

Drawings

FIG. 1 is a perspective view of a skeletal part of an embodiment.

FIG. 2 is a perspective view of a connection pin according to an embodiment.

Fig. 3 is a composition view of the connecting member.

Fig. 4 is a combination view of the connecting member and the frame.

Fig. 5 is a perspective view of a prefabricated wall panel.

Fig. 6 is a top view of a prefabricated wall panel.

Fig. 7 is a horizontal cross-section of a prefabricated wall panel.

Figure 8 is a vertical cross-section of a prefabricated wall panel.

Fig. 9 is an assembly view of prefabricated wall panels and connecting feet.

Fig. 10 is a diagram of installation nodes (vertical direction) of prefabricated wall panels in the first embodiment.

Fig. 11 is a diagram of installation nodes (horizontal direction) of prefabricated wall panel in the first embodiment.

Figure 12 is a horizontal cross-sectional schematic view of a curved prefabricated wall panel.

Fig. 13 is a schematic diagram (vertical) of dry hanging nodes of prefabricated wall panels.

Fig. 14 shows a second embodiment of the skeleton.

Fig. 15 shows a second pattern of connecting legs.

Figure 16 is a perspective view of a prefabricated wall panel for dry hang installation.

FIG. 17 is a perspective view of the frame of the second embodiment.

FIG. 18 is a diagram of a node installed at the external corner of a building.

Fig. 19 is one of section patterns of the vertical steel pipe.

Fig. 20 shows a second cross-sectional pattern of vertical steel pipes.

Fig. 21 shows a third cross-sectional pattern of vertical steel pipes.

Detailed Description

Referring to fig. 1 to 8, the prefabricated wall panel 00 of the present invention includes cement mortar layers 10 at both sides and an insulating layer 20 between the two cement mortar layers. Tongue-and-groove 30 is preferably designed at both sides of both ends of the prefabricated wall panel, and the prefabricated wall panel is in snap fit in the vertical direction through the tongue-and-groove fit.

Ultra-thin and ultra-light. This prefabricated wallboard, especially when this prefabricated wallboard uses as the side fascia, under the index such as guaranteeing wallboard energy-conservation, intensity, the dead weight is the better less. The lighter the self weight of the wallboard, the easier it is to install, and the better the firmness after installation. Ultra-thin means that the thinner the wallboard, the better the wallboard is under the indexes of guaranteeing wallboard energy conservation, self strength, etc., and what ultra-thin wallboard brought is the reduction of installation cost, manufacturing cost and maintenance cost.

In conventional designs, the thickness and the self-weight of the wall panel are proportional to the height (vertical span) of the prefabricated wall panel, for example, the thickness of the prefabricated wall panel with the height of 3 meters is about 15-18 mm, and the thickness of the wall panel needs to be increased to more than 30mm for the prefabricated wall panel with the height of 8 meters, so that the thickness of the wall panel is reduced, and the prefabricated wall panel has positive and beneficial effects on the manufacturing cost, the transportation cost, the installation cost and the maintenance cost.

The existing prefabricated wall board using reinforcing mesh or steel wire mesh, mesh cloth and the like as stress carriers can not meet the design requirements of high quantification and ultra-thinness.

Therefore, the utility model discloses the people, from actual starting, proposed the skeleton that forms with the steel pipe and replaced original steel reinforcement net skeleton to creative the offering uses horizontal cable wire to carry out the mode of secondary connection, carries out the installation in the three-dimensional space and fixes prefabricated wallboard, has not only improved the bending strength of prefabricated wallboard self, gives abundant consideration to the anti-seismic performance after prefabricated wallboard installation process, the installation moreover.

The application of the technology reduces the self weight of the wallboard after the lightweight design, and the wallboard technology has wide adaptability. For example, this technique can be applied not only to dry hanging or interior wall applications as a partition wall panel, but also to exterior wall panels. In an outer wallboard system, due to the fact that a dry-hanging assembly type construction process is adopted usually, a steel pipe keel structure is adopted in the technology, comprehensive performances such as bending resistance and the like of the prefabricated wallboard are good, and the steel pipe has the advantages of being light in weight, hollow rate, easy to mold and maintain and the like relative to reinforcing steel bars, so that the steel pipe wallboard is applicable to planar wallboards, and of course, the flat wallboard is also the wallboard technology which is used the most. It can also be used for shaped wall board, for example, with arc, or applied to the outer wall board with 270 turns at the building external corner, refer to fig. 17 and 18. Whether flat wallboard or special-shaped wallboard exists in the mode of prefabricated wallboard. Even if the special-shaped wallboard has good installation friendliness.

The steel pipe is used as a welding framework, the strength of the framework is improved, such as bending resistance and deformation resistance, the self weight is reduced, and the steel pipe has the characteristic of light self weight relative to a steel bar framework.

The above steel pipe is preferably made of lightweight steel having high strength.

The heat-insulating layer is represented by a polyphenyl particle material, and has the effects of light weight and heat insulation. Of course, rock wool and other heat insulating, sound insulating and heat insulating materials can be used. No matter it is polyphenyl granule material or rock wool, all should use the insulation material that satisfies A level fire behavior, and this kind of A level fire prevention material is prior art in building engineering, and no longer the repeated description.

Referring to fig. 9 to 11, the present invention provides a lightweight, ultra-thin, anti-seismic prefabricated wall panel having a high bending moment resistance, and a method of manufacturing and constructing the same. Especially meet the assembly type installation construction requirement of large-span, light, opposite sex wall body, and have extensive adaptability.

The insulating layer 20, which is a molded body of polystyrene particles as a whole, mainly serves to provide a filler for the framework 40 and to form a main filler for the thickness of the wall. During the filling process, the framework should be completely wrapped in the insulation layer, generally, the thickness of the insulation layer is not less than 1.5 times, generally twice, of the thickness of the framework, and the framework is generally arranged in the middle. The heat-insulating layer is made of fireproof and high-temperature-resistant foaming materials or rock wool materials. Because the skeleton is completely coated by the heat-insulating material, the skeleton is basically isolated from the air, and the framework has positive significance on the oxidation resistance of the skeleton. And this skeleton forms completely isolated with the peripheral air of wall body, forms completely isolated between the inside and outside indoor air of wallboard and the outdoor air, therefore the skeleton only has the rigidity performance, can not carry out temperature and thermal transmission between wallboard internal and external environment, that is to say, the wallboard has good heat-proof quality, sound-proof properties.

The specific structure, molding process and function of the skeleton are explained by the following techniques.

For convenience of illustration, the frame 40 shown in fig. 1 and 4 is formed by welding galvanized steel pipes made of standard steel pipes of 30 ﹡ 30mm gauge. In this embodiment, a rectangular frame is formed by three vertical square steel tubes 41 and two horizontal square steel tubes 41', and a round steel tube 42 is additionally arranged at a horizontal position or a vertical position as required, wherein the round steel tube is a steel tube with a diameter of 10, and the size of the round steel tube is far smaller than that of the square steel tube. This is because, the bending distance that prefabricated wallboard self vertically bore is greater than the horizontal moment of bending far away, and this kind of design is favorable to reducing the wallboard dead weight. In the embodiment, in the companion frame composed of three vertical and two horizontal vertical steel pipes, the square steel pipe is made of light steel material with the specification of 30 ﹡ 30mm and the wall thickness of 1 mm. The circular steel tube is completely penetrated through the framework from one side to the other, that is, a complete channel is formed inside the circular steel tube for installing the steel cable 50. Specifically, referring to fig. 1, laser beam drilling is performed on a vertical square steel tube 41, then the steel tube passes through three vertical round steel tubes 42 from one side to the other side, the three square steel tubes are passed through in a horizontal posture, spot welding auxiliary connection is performed at the lap joint of the square steel tube and the round steel tubes, and the connection is integrated, so that the whole framework has high shape retention performance. In this embodiment, the both ends of round steel pipe extend to the outside of square steel pipe frame to with the concatenation department at prefabricated wallboard both ends basic parallel and level, so that form the structure of basic alignment. The existence of the round steel pipe improves the overall rigidity of the rectangular frame, and provides a passage for inserting and connecting steel strands or steel wires, which will be explained in detail in the subsequent construction process.

But when needing the butt joint, preferably, use the auxiliary knot at two pipe tip of butt joint and connect, perhaps carry out the flaring with the one end of round steel pipe, then when two prefabricated wallboards splice, quick realization is aimed at forming continuous cable wire grafting passageway between two prefabricated wallboards.

As a preferable mode, the vertical steel pipe in the present embodiment may be a square steel pipe having a cross-sectional structure as shown in fig. 19/20, and having more excellent mechanical properties. An oval steel tube may also be used, as shown in fig. 21.

The thickness of the framework 40 is smaller than that of the heat insulation layer, and the framework is arranged in the heat insulation layer 20 in the middle, that is, the framework and the heat insulation layer are in a coating relation, that is, the framework is completely coated inside the heat insulation layer, so that the framework has positive significance on the overall energy-saving performance of the prefabricated wall panel, and is one of necessary conditions.

The framework 40 is provided with a mounting hole 43 for mounting a connecting piece in advance, preferably, a small-sized nut is welded at the mounting hole to form a threaded hole, so that the manufacturing cost of the framework can be reduced, the process requirement of hole opening can be reduced, and the threaded hole in the nut has good performance and completely meets the requirement of mounting the connecting piece.

The connecting piece and the anchoring head 60 are made of engineering plastic, and the structure is shown in a reference figure 3/4, wherein the connecting piece 61 is provided with a threaded column and a threaded hole, wherein the threaded column is used for connecting with the framework, namely, the threaded column end of the connecting piece is fixed on the framework. The connecting pieces are arranged in a plurality of numbers, and the connecting pieces are arranged on two sides of the framework. Anchor head 62 for engineering plastics, has expanded head and screw thread post, wherein screw thread post part be used for cooperating with the screw hole on the connecting piece, wherein, the position at screw hole place on the connecting piece is expanded frustum form, forms one kind like this between connecting piece and anchor head and adds the face of holding, should add the face of holding and be used for cooperating with the wire net, carries out preliminary fixed to the wire net.

The cold and hot bridge-cutoff assembly composed of the connecting piece and the anchoring head forms bridge-cutoff connection between the steel framework and the cement mortar layer, and meets the requirements of the existing building energy-saving standard on wallboards.

And the steel wire mesh is arranged in the cement mortar layer 10 and used for preventing cracking and preventing the cement mortar layer from being dried. The mesh size of this wire net chooses for use according to the anti-crack strength of wallboard, and the market purchase can.

The thickness of the cement mortar layers 10 on the two sides is controlled within 5 mm. The thickness of the middle insulating layer is controlled to be 12 to 20 centimeters according to requirements. The cement mortar layer is preferably high-strength anti-crack mortar, and the mortar has good rigidity performance under the assistance of the steel wire mesh.

Furthermore, alkali-resistant mesh cloth can be additionally arranged inside or on the surface of the cement mortar layer, so that the surface quality of the cement mortar layer is further improved.

And arranging a decorative layer, such as a real stone paint and the like, on the surface of the cement mortar layer on the outer surface of the wallboard.

The connecting leg 70 is used for installing the upper end and the lower end of the prefabricated wall panel, is specific and integrally T-shaped, is inserted into the upper end and the lower end of the square steel tube from the upper end and the lower end, and is fixed on a cross beam of a building by using anchor bolts which are foundation anchor bolts. The prefabricated wall panel is used for installation at the position of the lintel. Such mounting nodes are typically located in indoor locations, such as partition panels in indoor locations. Specifically, referring to fig. 2, the connecting pins are fixed to the building beam through the slots and the long holes to match with the anchor bolts, and the wall body is fixed after the fixing. After the fixing, the upper end and the lower end of the wall body are fixed on the upper cross beam and the lower cross beam. Because the connecting feet are in splicing relation with the square steel pipes in the wall body, the positions of the connecting feet can be adjusted, and the installation convenience is good.

The other installation position is a rigid hanging installation on the periphery of the building, in this installation mode, one of the styles of the connecting foot 70' is integrally 7-shaped with reference to fig. 15, the connecting foot is inserted into the square steel tube, the end of the square steel tube is correspondingly provided with an avoiding notch 71, and the other end of the connecting foot is fixed with a keel or an embedded part on the building.

In the prefabricated wall board, the arrangement of the groove and tongue positions means that the groove and tongue positions are positioned in the heat insulation board layer, and after the prefabricated wall board is combined, mortar patching and joint smearing treatment are carried out on the splicing joint positions, or a binding agent with a waterproof effect is used for connection. In the specific use process, redundant reservation can be carried out with the wire net of two prefabricated wallboard both sides to the wire net is carried out the overlap joint in splice seam department, forms local overlap joint, can improve joint strength, the anti crack performance of two wallboard concatenation departments.

The manufacturing method of the prefabricated wall panel comprises the following steps:

firstly, the skeleton of welding rectangle, the back that finishes of welding, interlude circular steel pipe and welding set up the preparation that is used for installing the various mounting holes of annex on this skeleton, for use: using special plugging to plug the pipe orifice positions of the square steel pipe and the round steel pipe;

then, install the connecting piece respectively in the both sides of skeleton to use anchor assembly to carry out preliminary fixed to the wire net, in this embodiment, the wire net is two, sets up respectively in both sides. The use density of this connecting piece uses actual strength as the standard, and theoretically, the quantity that uses is more, and then the connection between skeleton and the cement mortar layer is more reliable, and is more firm.

Then, the framework is placed in a mold, a polyphenyl block is used for supporting between the framework and a bottom plate of the mold, the framework is arranged in the center, polyphenyl granules are injected into the mold according to the manufacturing process of the polyphenyl granule plate, after the completion, the framework is completely coated in the heat insulation layer, and the maintenance is carried out until the framework is hardened;

and finally, grouting or plastering mortar on two sides of the heat insulation layer, wherein the thickness of the mortar layer is required to completely cover the anchoring head and the steel wire mesh part, a basically flat outer surface and an inner surface are formed, whether an alkali-resistant glass fiber net is arranged in the cement mortar layer or not can be determined according to needs, and after curing to be hardened, the end part of the steel pipe is blocked, so that the prefabricated wallboard is manufactured.

Use through this embodiment, the thickness on the cement mortar layer that can effectual reduction both sides, just, heat preservation and the steel pipe of inside are light steel material, have lightweight effect. Simultaneously the steel pipe skeleton is in the assurance intensity for the wallboard of traditional sandwich structure of the weight of this prefabricated wallboard, the dead weight reduces, and has good installation and construction effect, good bending resistance, anti fracture performance, good heat preservation energy-saving effect.

The advantages of the prefabricated wall panel will be described in detail through the construction process.

This prefabricated wallboard to different use scenes, has different mounting means, and following part carries out detailed description to it through the work progress.

The application scene one: the application mode in the frame building is shown in 9/10 and 11.

Under this scene, the upper and lower both ends of prefabricated wallboard, it is specific, in the upper and lower socket department of vertical square steel pipe, fill in advance and connect foot 70, should connect the foot most and be located square steel pipe port, then, the horizontally pushes in the region between the frame crossbeam of taking the installation wallboard, uses the lower margin to carry out supplementary fixed, fixes the upper and lower end of prefabricated wall body through connecting the foot, can accomplish the installation of prefabricated wallboard. The wallboard is installed one by one, and prestress loading is carried out on the wallboard between the two stand columns, and the prestress loading process is as follows: the steel cable 50 passes through the two upright columns and the steel pipe in the wall plate between the two upright columns, the steel cable locker locks the steel cable, and after the steel cable is locked, the steel cable is arranged between the two upright columns to strengthen and connect the wall plate. In addition, in the embodiment, the steel cables, the framework, the upright columns and the cross beams form gridded and three-dimensional connection, so that the steel cables, the framework, the upright columns and the cross beams have better connection wall bodies and better earthquake resistance. Particularly, when a strong earthquake occurs, the latticed anti-seismic structure consisting of the steel skeleton and the steel cable can better absorb energy and consume energy, and the anti-seismic performance of the fabricated building is improved.

In this embodiment, in the same floor, the wallboard between two stands forms multichannel cable wire connecting band, and the meshing is respond well.

In this embodiment, with the skeleton cooperation cable wire of square steel pipe, round steel pipe as the main part, have better connection, installation intensity for the cladding plays heat preservation, thermal-insulated, anticorrosive effect at the peripheral polyphenyl board of skeleton, so, can realize the design requirement of ultra-thin wallboard. Meanwhile, the design requirements of the ultrahigh and oversized wallboard can be met, for example, through the implementation of the technology, the application of the ultrahigh wallboard with the height of 10 meters can be theoretically achieved, and the ultrahigh wallboard is generally applied to the field of public buildings, such as museums, gymnasiums, stations and other occasions.

In the embodiment, the steel cable penetrates through the round steel pipe to form a restraint for the wallboard, the restraint has positive significance for overcoming the self weight of the wallboard, and particularly, the steel cable has upward force for the wallboard, and the wallboard is lifted upwards like a carrying pole, so that the installation of the wallboard is facilitated, and the influence of the self weight on the deformation of the wallboard is overcome.

Application scenario two: the application of the external hanging construction is shown in fig. 13 to 16.

The dry-hanging type construction method is used for constructing the prefabricated wall board, specifically, the connection pins are used for dry hanging at the upper end and the lower end of the prefabricated wall board, the connection pins are fixed with embedded parts or keels, locking is carried out by using locking parts such as nuts, the adjustment of the three-dimensional space position can be carried out by using the locking in-process, and the dry-hanging type construction method is used for carrying out dry-hanging type construction operation on the periphery of a building body. Under this application scene, can use the cable wire to connect between two stands, concrete cable wire passes the wallboard between two stands to with the both ends system of cable wire or use the locker to fix on two stands, make between wallboard and the crossbeam, form latticed being connected between wallboard and the stand, have better joint strength, no matter be wallboard self security performance (for example prevent falling, crack control), still the intensity of wallboard, all obtain effectual improvement.

The implementation of the two construction technologies does not need post processing, the assembly process is greatly slowed down, and the structural strength is improved.

Before three-layer main part, form stable network structure through steel skeleton, connecting piece and wire net and connect, promoted the structural strength of prefabricated wall body greatly, and can not take place cold and hot bridge effect for this prefabricated wall body's whole flexural strength can guarantee. Meanwhile, the framework is completely positioned in the heat-insulating layer, when the wall bodies with different thicknesses are required to be designed, series of designs can be realized only by thickening or thinning the heat-insulating layer, and meanwhile, the thickness of the external cement mortar layer is basically fixed at a specific numerical value, so that the aim of light weight design is fulfilled.

The application of this technique for when prefabricated side fascia used as the side fascia, whole security performance is better, especially, can avoid prefabricated wall body whole to drop, for example under the violent earthquake, even the wallboard damages, can not take place whole accident that drops yet.

Example two

A wall panel for use in an external corner position of a prefabricated building, with reference to figures 17 and 18. A schematic of the keel construction of the panel is illustrated in fig. 17, and another advantage of the panel technology is that the panel design at the external corner position can be satisfied and the panels can be prevented from being spliced at the external corner position. In the prior art, the defects that two wallboards are spliced at the corner position of an external corner are that the splicing position is not easy to align, the processing of the splicing seam is inconvenient, and cracks and dry crack leakage are easy to occur. The implementation of this embodiment solves the above problems well.

In this embodiment, two parallel vertical steel pipes are provided at the corner of the external corner, and the two steel pipes are welded together using a 90-degree bent steel pipe 41 ″.

A specific method for conveniently and quickly manufacturing the framework comprises the steps of firstly manufacturing a rectangular frame structure by using four vertical square steel pipes, horizontal steel pipes and round steel pipes, referring to the first embodiment, bending the middle part of the frame by 90 degrees to form a shape shown in figure 17, and referring to the first embodiment, and then manufacturing the prefabricated wall board.

Referring to fig. 18, the installation joint of the external corner prefabricated wall panel is connected with embedded parts on the prefabricated beam at the upper end and the lower end of the prefabricated wall panel by connecting pins 70. The horizontal position of prefabricated wallboard passes the circular steel tube in the wallboard and fixes the cable wire both ends on the built-in fitting of stand through the cable wire to carry out supplementary support to prefabricated wallboard through the cable wire is supplementary, connect, improve the security performance when prefabricated wallboard uses as the side fascia.

In the embodiment, the defect that the prefabricated wall panel cannot be applied to the external corner position in the traditional technology is overcome.

The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and those skilled in the art should be able to make various modifications and improvements to the present invention without departing from the spirit of the present invention.

Claims (10)

1. A prefabricated wall panel comprises an inner cement mortar layer, an outer cement mortar layer and a heat insulation layer positioned between the cement mortar layers, and is characterized in that,

the heat-insulating layer is composed of a heat-insulating layer and a steel skeleton, the steel skeleton of the framework structure is completely covered in the heat-insulating layer, the upper end and the lower end of the steel skeleton are provided with connecting parts, and at least one steel cable channel is arranged in the steel skeleton;

and steel wire meshes are arranged in the inner cement mortar layer and the outer cement mortar layer and are connected with the steel framework into a whole through a thermal bridge-breaking component.

2. The prefabricated wall panel of claim 1, wherein said inner and outer cement mortar layers are made of cement mortar having high crack resistance.

3. A prefabricated wall panel according to claim 1, wherein said inner and outer cement mortar layers are no more than two centimeters in thickness in a single layer.

4. A prefabricated wall panel according to claim 1, wherein said steel skeleton is a rectangular frame structure consisting of transverse and vertical steel pipes.

5. A prefabricated wall panel according to claim 1, wherein said steel skeleton is a 90 degree bent frame structure consisting of transverse and vertical steel pipes.

6. A prefabricated wall panel according to claim 1 wherein said cable channel is an interior cavity of a horizontally extending steel tube in a steel skeleton.

7. The prefabricated wall panel of claim 1, wherein the steel skeleton is a welded assembly of galvanized steel pipes.

8. The installation node of the prefabricated wall panel in the fabricated building is positioned in a frame of a frame structure main body or outside the frame and used for dry hanging and fixing, the node comprises a cross beam, a vertical column and the prefabricated wall panel, and is characterized in that,

the beam is provided with an embedded part;

the upright post is provided with a steel cable fixing perforation or a fixing lug plate;

the prefabricated wall panel is a prefabricated wall panel of any one of claims 1 to 7; and the connecting parts at the upper end and the lower end of the prefabricated wall plate are fixedly connected with the cross beam, at least one steel cable penetrates through a steel cable channel in the prefabricated wall plate, and the two ends of the steel cable are fixed at the steel cable fixing through holes or the fixing lug plates.

9. The mounting node of claim 8, wherein the wire rope is in a pre-tensioned state.

10. The mounting node of claim 8, wherein the prefabricated wall panel is mounted to a fabricated building as an inner, outer or outer partition panel.

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