CN206667507U - A kind of warming plate with arrangement of reinforcement - Google Patents

Abstract

The utility model discloses a thermal insulation board with reinforcement. The thermal insulation board with reinforcement comprises a thermal insulation board and steel mesh sheets laid in the thermal insulation board, wherein connecting steel bars are thrown out from nodes of several steel mesh sheets. The invention discloses a construction method of thermal insulation structure of an insulating board with reinforcement in the concrete part of the external wall, the concrete part of the external wall includes concrete beams, concrete shear walls, balconies, outdoor air-conditioning partitions, bay windows and parapet walls. During the construction process, the reinforced insulation boards are connected in the form of tongue and groove, supplemented by building sealant to ensure that the joints do not leak water or grout. The insulation board with reinforcement can significantly improve the strength, crack resistance and impact toughness of the insulation board itself, so that the insulation board can bear a certain vertical load and horizontal load in addition to its own gravity load.

Description

A kind of insulation board with reinforcement

technical field

The utility model belongs to the field of construction wall materials and exterior wall construction methods, in particular to a thermal insulation board with reinforcement.

Background technique

In a building, the energy loss of the outer envelope structure is the largest, and the thermal insulation performance of the envelope structure is the main factor affecting the energy consumption of the building. The weakest part of the outer envelope structure is the part where the outer envelope is made of concrete. It often becomes the cold and heat bridge part of the wall. Because the thermal conductivity of concrete is very large, the thermal insulation performance of 200mm concrete is not as good as that of 2mm thick extruded board. Therefore, the insulation measures of reinforced concrete parts are the touchstone for testing and maintaining the thermal insulation effect of the structure.

The thermal insulation structure treatment of the outer enclosure structure mainly includes internal thermal insulation, external thermal insulation and self-thermal insulation systems. Because the thermal conductivity of concrete materials is very large, it is difficult to achieve self-thermal insulation, so the thermal insulation measures for concrete parts mainly include internal thermal insulation and external thermal insulation. two kinds. The internal thermal insulation system is to make thermal insulation structure on the side of the concrete member facing the indoor room to complete the thermal insulation of the building. In the internal thermal insulation system, the concrete components are directly exposed to the outside, the overall thermal insulation effect is not good, and condensation will occur on the concrete part. The impregnation or freezing and thawing of condensation water can easily cause mold and cracks on the concrete wall, which seriously affects the external wall. Insulation effect, the construction method of the internal insulation system is located in the interior of the building, which is easily damaged by the user during decoration and affects the insulation effect. Due to the technical irrationality of the internal thermal insulation system, it has been gradually replaced by the external thermal insulation system. The insulation methods of the external insulation system in the concrete part mainly include the following types:

(1) Apply thermal insulation mortar directly on the outside of the concrete, bond the thermal insulation mortar to the concrete, and use the thermal insulation mortar as a decorative surface. The advantage of this method is that the construction is convenient and fast. The disadvantage is that the bond strength between the thermal insulation mortar and the concrete is limited, which limits the thickness of the thermal insulation mortar and naturally limits the performance of the thermal insulation effect. Insulation mortar itself is not high in strength, and has poor weather resistance and impact resistance. After experiencing multiple cycles of hot summer and severe cold in winter, cracks, hollowing, water seepage and shedding of facing bricks often occur on the outer wall, especially the falling of the facing bricks, giving a The life and property of the people are greatly threatened. Once the facing bricks fall off, the maintenance and construction will be difficult and costly.

(2) Glue organic insulation materials such as EPS and XPS directly to the concrete structure, or nail them to the concrete structure, and then make a decorative surface layer outside the insulation material, such as painting waterproof paint or dry-hanging stone, etc. It is generally recommended to use For light waterproof coatings, if dry hanging is used, the pendant must pass through the insulation layer and be directly connected to the concrete structure, and cannot be supported on the insulation material. It is not suitable to paste facing bricks outside the thermal insulation materials treated by this construction method, because the bonding strength between the cement mortar used to paste facing bricks and organic thermal insulation materials is extremely low, and the facing bricks are easy to fall off, threatening the lives and property safety of the people. Another disadvantage of this method is poor fire resistance. Most of the externally pasted thermal insulation materials are B-grade refractory materials, which are prone to fires during the construction process. Especially in recent years, several fires caused by external thermal insulation materials have caused This caused serious casualties and property losses, and deepened the concerns of all walks of life in the fire safety of the external thermal insulation system. Another disadvantage of this thermal insulation construction method is that the service life of the thermal insulation material does not match the service life of the main structure. The service life of organic thermal insulation materials is usually only 25 years, which is far less than the service life of the main structure (usually 50 years) and the service life of the house. The property right period (generally 70 years for residential buildings). After the life of the insulation material expires, the construction must be replaced again. The time and cost of the replacement construction are expensive, and it will affect the normal use of the building.

(3) Externally bonded insulation boards, insulation boards are usually inorganic insulation materials, such as autoclaved sand aerated insulation boards, foam concrete insulation boards, foamed ceramic insulation boards or vitrified microbead insulation boards, etc. The inorganic insulation board and the main structure Lifespan is the same. The insulation board and the concrete are bonded by the cement mortar applied afterwards, and then the decorative surface layer is made on the outside of the insulation board. This method has a good thermal insulation effect, but there are many construction steps, a large amount of wet work on site, and high requirements for construction technology. Once the bonding strength of the cement mortar fails to meet the requirements or hollows appear, the insulation board is easy to fall off, which is for future use. pose a safety hazard. The thermal insulation board itself has low tensile strength, poor crack resistance, and weak impact toughness. It is easy to be damaged and broken during transportation and construction, and the rate of defective products is high. In actual application, it has gone through several cycles of hot summer and severe cold in winter. It is also easy to crack, which leads to water leakage on the outer wall and damage to the outer facade.

Whether it is an internal thermal insulation system or an external thermal insulation system, the concrete structure needs to be pre-cast and formed. When pouring concrete, building wooden formwork is required. The extensive use of building wooden formwork seriously consumes limited forest resources, which does not meet the "energy saving, reducing energy consumption" of my country's construction industry. The basic national policy of "consumption, emission reduction, and environmental protection" does not meet the requirements of green buildings.

Utility model content

Aiming at the disadvantages of several existing thermal insulation construction methods in the concrete part of the external wall, a thermal insulation board with reinforcement is provided.

In order to achieve the above object, the technical scheme adopted by the utility model is as follows: a thermal insulation board with reinforcement, including a thermal insulation board and a steel mesh laid in the thermal insulation board, wherein several nodes of the steel mesh are thrown out to connect rebar.

Another technical solution of the utility model is a thermal insulation board with reinforcement, including the thermal insulation board and the steel wire mesh laid in the thermal insulation board, wherein the connecting steel wires are thrown out from the joints of several steel wire mesh pieces.

The reinforcement in the thermal insulation board with reinforcement can be calculated and determined according to the stress of the thermal insulation board. In addition to meeting the stress requirements, the reinforcement in the insulation board with reinforcement also needs to meet the structural requirements such as crack resistance and impact toughness requirements. The reinforcement mesh should be densely packed with thin-diameter steel bars.

Further, the material of the insulation board is autoclaved sand aerated concrete, foamed concrete, foamed ceramics or vitrified microbeads.

Further, the connecting reinforcement is made of stainless steel.

The beneficial effects of the utility model are as follows: the insulation board with reinforcement can significantly improve the strength, crack resistance and impact toughness of the insulation board itself, so that the insulation board can bear a certain vertical load and horizontal load. During concrete construction, the insulation board is used as the outer formwork of the concrete, which can save the amount of wooden formwork and reduce the workload of formwork removal. The connecting steel bar can also be used as the tension screw of the formwork during concrete pouring, which saves the amount of steel used. When pouring concrete, the insulation board and concrete are seamlessly bonded to form a whole, and there are connecting bars connected to the concrete, so that the insulation board is durable and will not fall off, and the thickness of the insulation board is no longer limited. Ask to be sure. At the same time, the steel mesh can also effectively limit the expansion of shrinkage cracks in the insulation board and avoid the resulting cracking of the facing layer. The insulation boards are connected in the form of tongue and groove, supplemented by building sealant, to ensure that the joints do not leak grout during concrete pouring, and do not leak water during normal use.

The material of the insulation board can be autoclaved sand aerated, foam concrete, foam ceramics and vitrified microspheres, etc., all of which are inorganic insulation materials. The service life of the insulation material is the same as that of the main structure of the building, and the insulation material is also a class A refractory material. , will not burn in the event of a fire, will not produce thick smoke, poisonous smoke, effectively improve the fire performance of the building.

Description of drawings

Fig. 1 is the schematic diagram of the axonometric structure of the band reinforcement insulation board of the present invention;

Fig. 2 is the cross-sectional view of the utility model band reinforcement insulation board;

Fig. 3-a is a schematic structural diagram of the construction method at the concrete beam place in Example 1 of the utility model, and Fig. 3-b is a building section view at the concrete beam place in Example 1 of the utility model;

Fig. 4-a is a schematic structural diagram of the construction method at the concrete shear wall of the exterior wall in Example 2 of the utility model, and Fig. 4-b is a building section view at the concrete shear wall of the exterior wall in Example 2 of the utility model;

Fig. 5-a is a construction schematic diagram of a construction method in which the building exterior wall is a balcony in Example 3 of the utility model, and Fig. 5-b is a building section view in which the building exterior wall is a balcony in Example 3 of the utility model;

Figure 6-a is a schematic structural diagram of the construction method at the outdoor air-conditioning partition in Embodiment 4 of the present utility model, and Figure 6-b is a building cross-sectional view at the outdoor air-conditioning partition in Embodiment 4 of the present utility model;

Fig. 7-a is a schematic structural diagram of the construction method at the bay window in Embodiment 5 of the present utility model, and Fig. 7-b is a cross-sectional view of the building at the bay window in Embodiment 5 of the present utility model;

Fig. 8-a is a schematic structural diagram of the construction method at the parapet in Embodiment 6 of the utility model, and Fig. 8-b is a cross-sectional view of the building at the parapet in Embodiment 6 of the utility model.

Specific implementation method

In order to make the technical solutions and advantages of the utility model clearer, the implementation of the utility model will be further described below in conjunction with specific applications.

As shown in Figure 1-2, a thermal insulation board with reinforcement includes a thermal insulation board and steel mesh sheets laid in the thermal insulation board, and connecting steel bars are thrown out from the nodes of several steel mesh sheets. According to the load situation, the steel mesh can be replaced by steel mesh, and the connecting steel can be replaced by connecting steel wire.

The reinforcement in the thermal insulation board with reinforcement can be calculated and determined according to the stress of the thermal insulation board. In addition to meeting the stress requirements, the reinforcement in the insulation board with reinforcement also needs to meet the structural requirements such as crack resistance and impact toughness requirements. The reinforcement mesh should be densely packed with thin-diameter steel bars.

According to the different building functions and structural components, the concrete parts of the external wall of the building have the following situations: concrete beams, concrete columns, concrete shear walls, balconies, bay windows, air conditioner shelves and parapets, etc.

Example 1: Insulation treatment of concrete beams. The building structure is shown in Figure 3-b. The concrete beams are constructed in the following order from indoor to outdoor: interior surface layer, concrete layer, insulation board with reinforcement, and exterior decoration. Surface layer. The exterior surface layer can be divided into three types: paint, brick and stone. For heavy materials such as stone, it is necessary to leave embedded parts in the reinforced insulation board in advance. The masonry on the beam can use self-insulation wall combined with exterior finish layer, or ordinary masonry structure + insulation layer + exterior finish layer. It is recommended to use the former method first, because the construction of self-insulation wall is convenient, economical and durable ,Energy saving and environmental protection. Referring to Figure 3-a, the specific implementation steps are as follows: set up scaffolding, set up the inner mold and bottom mold of the concrete beam, bind the inner steel bars of the concrete beam, fix the reinforced insulation board on the bottom mold and complete the waterproof sealing treatment; Wooden spacers are erected on the outside of the board, and the wooden spacers are firmly connected with the insulation board with reinforcement, and the wooden spacers are firmly connected with the outer scaffolding. When the girder height is high, refer to the construction specification manual, and it is necessary to set up a tension screw between the reinforced insulation board and the inner formwork. Steel quantity, concrete pouring, after the concrete strength meets the requirements, remove the inner formwork and bottom formwork of the concrete beam, build the outer wall on the insulation board and the concrete beam, clean and paint the side and bottom of the concrete beam according to the interior decoration requirements, and complete the interior finish layer. The outside of the insulation board is pasted with ceramic tiles, painted with fire-resistant paint or dry-hanging stone according to the structural requirements of the exterior finish.

Example 2: Insulation treatment at the concrete shear wall of the exterior wall. The building structure is shown in Figure 4-b. The construction methods from indoor to outdoor are as follows: interior surface layer, concrete layer, insulation board with reinforcement, and exterior decoration Surface layer. The interior and exterior finishes are the same as those of the concrete beams. Refer to Figure 4-a for specific implementation steps: bind the inner reinforcement of the concrete, set up the scaffolding of the concrete wall, set up the inner mold, set up the outer scaffolding and wooden spacers, and fix the reinforced insulation board as the outer formwork on the wooden spacers , A groove-and-groove connection is adopted between the horizontal seam and the vertical seam of the insulation board. For concrete shear walls, a tension screw is required between the reinforced insulation board and the inner formwork, and the tension screw is pre-embedded in the reinforced insulation board and combined with the connecting steel bars to save steel consumption. The shear wall concrete is poured, and the construction of the interior and exterior finishes is completed after the concrete strength meets the requirements. The connection structure between the insulation boards with reinforcement is the key and difficult point in the construction. The utility model adopts the tongue-and-groove connection, and the silicone and construction glue are fully filled in the groove by pressure, so as to ensure no slurry leakage during construction and no water seepage during use. The connection structure between the reinforced insulation boards is completed before the concrete is poured, which is beneficial to visually inspect the quality of the joints on site. The joints are under greater pressure when the concrete is poured. If there is no grout leakage at this time, it indicates that the insulation boards are damaged The connection is reliable, and the possibility of water leakage on the outer wall is very small in the future; if a grout leakage point is found, it should be dealt with immediately to meet the needs of concrete pouring. In addition, it should be marked as a quality weak point, and attention should be paid to it before the construction of the exterior finish . This construction method can expose the weak parts of construction quality as early as possible, so as to deal with them in time and prevent problems before they happen. The thermal insulation structure at the concrete column of the exterior wall is similar to that of the concrete shear wall, and will not be repeated here.

Example 3: The thermal insulation structure when the outer wall of the building is a balcony is shown in Figure 5-b. In order to avoid hot and cold bridges, it is necessary to perform all-round thermal insulation treatment around the balcony slab. The utility model has a reinforced thermal insulation board and can also be used as a bottom form and a side form when pouring concrete. The thermal insulation board above the balcony slab may not have reinforcement, and other methods can also be used for thermal insulation construction. Referring to Figure 5-a, the specific implementation steps are as follows: set up scaffolding, lay wooden formwork in the indoor part, and lay reinforced insulation boards with reinforced insulation boards as the bottom formwork and side formwork in the outdoor part that needs insulation. The joints between the bottom formworks can be connected by straight seams , the connection joints between the side forms are connected by tongue and groove joints, and all joints need to be sealed with construction glue to ensure that there is no leakage of grout during construction and no water leakage during use. Bind the inner steel bars in the concrete, pour concrete, and remove the formwork after the concrete strength meets the requirements. , carry out the insulation board construction on the balcony surface, and finally carry out the construction of the exterior finish layer, and install the railings, doors and windows.

Example 4: Thermal insulation treatment at the partition of the outdoor air conditioner. When there are not many structural beams and lower slabs, the construction method is similar to that of the balcony, and will not be described again. When there are many falling boards, the specific implementation steps refer to Figure 6-a in order: erect scaffolding, lay wooden formwork in the indoor part, lay reinforced insulation boards as the bottom form and side formwork in the outdoor part that needs heat preservation, bind the concrete internal steel bars, and lay air conditioners The insulation board above the partition is also used as the top form for the concrete pouring of the partition, and the sealing treatment between the top form and the side form ensures that there is no leakage of grout during pouring and no water leakage during use. In order to ensure the quality of concrete pouring, the shelf of the air conditioner should adopt a certain oblique slope to facilitate the discharge of air during concrete pouring, and finally carry out the construction of the exterior surface. Of course, the partition board of the air conditioner can also be poured twice, and the steps are similar to the overall pouring, but the construction quality is not as good as the one-time pouring.

Example 5: Thermal insulation structure treatment at the bay window. The bay window is a rectangular box that protrudes from the outer wall. Generally, three sides are windows, or one side is a window, and the other two sides are solid walls. Because the bay window protrudes from the wall, It increases the heat transfer area of the external wall and the shape coefficient of the building, which is the most intense part of the heat exchange between the building and the outside world, and is also the key part of the building's energy-saving structure. When adopting the reinforced insulation board of the utility model, the architectural structure of the bay window is shown in Fig. The rib insulation board doubles as the pouring formwork for the bay window concrete. Refer to Figure 7-a for specific implementation steps: set up scaffolding, lay wooden formwork indoors, tie beams and steel bars for bay window panels, lay outer reinforced insulation boards, and handle joint structures to ensure no grout leakage during construction. No water leakage during use, pouring concrete. In order to improve the integrity and waterproof performance of the bay window, the bay window concrete and the indoor floor concrete should be poured at one time without leaving construction joints. When the concrete strength meets the requirements, remove the formwork and carry out the interior parts of the interior. Facing construction and exterior finishing construction of outdoor parts.

Example 6: The thermal insulation structure at the parapet is similar to the thermal insulation structure at the partition of the air conditioner. The detailed drawing of the building structure is shown in Figure 8-b. It is relatively high and requires secondary pouring of concrete. Generally, concrete pouring construction joints are formed on the roof slab surface. At this time, the horizontal joints of the external formwork with reinforced insulation boards need to avoid this position. Refer to Figure 8-a for specific implementation steps: set up scaffolding, lay wooden formwork indoors, bind the inner reinforcement of the concrete beam and the inner reinforcement of the parapet wall, lay the reinforced insulation board on the outer side of the concrete beam, pour the roof concrete, and wait until the strength of the roof concrete reaches After the requirement, lay the reinforced insulation board on the outer and inner layer of the parapet wall, handle the joint structure of the insulation board to ensure no grout leakage during construction and no water leakage during use, pour the parapet wall concrete, remove the formwork after the concrete strength meets the requirements, and carry out outdoor The construction of the exterior surface layer of the part and the construction of the insulation layer of the roof.

Embodiment 7: Insulation treatment of the floor of the raised floor. When the building is equipped with a raised floor, the floor above the raised floor usually also needs thermal insulation treatment. The thermal insulation board with reinforcement is placed under the floor of the raised floor and doubles as a bottom form when pouring concrete. , its structural details and construction methods are similar to the thermal insulation treatment of outdoor balconies, and will not be repeated here.

The above only describes the basic principle and preferred implementation of the present utility model, and those skilled in the art can make many changes and improvements according to the above description, and these changes and improvements should belong to the protection scope of the present utility model.

Claims (4)

1. a thermal insulation board with reinforcement, is characterized in that, comprises thermal insulation board and the steel mesh sheet that is laid in the thermal insulation board, wherein the node place of several steel mesh sheets throws out connecting steel bar. 2. The insulating board with reinforcement according to claim 1, characterized in that, the connecting reinforcement is made of stainless steel. 3. A thermal insulation board with reinforcement, characterized in that it comprises a thermal insulation board and steel wire mesh sheets laid in the thermal insulation board, wherein connecting steel wires are thrown out from nodes of several steel wire mesh sheets. 4. The thermal insulation board with reinforcement according to claim 1 or 3, characterized in that the material of the thermal insulation board is autoclaved sand aerated concrete, foamed concrete, foamed ceramics or vitrified microbeads.