A curtain wall rear embedded part structure and a construction method thereof

Abstract

The application discloses a curtain wall rear embedded part structure and a construction method thereof, wherein the curtain wall rear embedded part structure is applied to a concrete cantilever and comprises four through holes which are formed by penetrating the concrete cantilever along a height direction; a screw rod is movably arranged in each through hole and extends to the outside of the concrete cantilever at the upper end and the lower end of the screw rod, and an upper nut and a lower nut are respectively screwed on the upper end and the lower end of the screw rod; an upper anchor plate is arranged between the upper nut and the upper end surface of the concrete cantilever, and a first through hole is formed in the upper anchor plate and corresponds to the position of the screw rod along the height direction; a lower anchor plate is arranged between the lower nut and the lower end surface of the concrete cantilever, and a second through hole is formed in the lower anchor plate and corresponds to the position of the screw rod along the height direction; a side anchor plate is fixedly connected between the upper anchor plate and the lower anchor plate, the side anchor plate is arranged in parallel to the height direction and is used for abutting against the outer side wall of the concrete cantilever. The application can reduce the number of rear anchor bolts, save the cost and avoid the problem that the rear anchor bolts are arranged in a concentrated manner and conflict with each other.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, specifically to a curtain wall post-embedded component structure and its construction method. Background Technology

[0002] Currently, there are two methods for connecting curtain walls and main structures in the construction industry: pre-embedded parts and post-embedded parts. Post-embedded parts are more commonly used. The post-embedded parts method often uses a galvanized steel plate as an anchor plate, which is combined with mechanical or chemical anchors installed on the main structure to form an integral embedded part. Then, a keel adapter is welded to the anchor plate of the embedded part, and the keel adapter is then connected to the curtain wall keel.

[0003] For the construction of curtain wall connection nodes in steel structure buildings, a concrete cantilever platform is usually poured on the main steel structure, and then the curtain wall's post-embedded parts are placed on the concrete cantilever platform. This avoids directly welding the curtain wall keel and keel adapter to the main steel structure, which would damage the main steel structure.

[0004] The construction of curtain wall connection nodes in steel structure buildings typically requires anchor plates to be fixed to the upper and lower surfaces, as well as some sides, of the concrete cantilever platform using post-installed embedded parts. Current post-installed embedded part structures mostly fix the upper, lower, and side anchor plates to the concrete cantilever platform in the following ways: Figure 1 As shown, corresponding anchor bolts 1 are placed at the installation positions of each anchor plate on the concrete cantilever 2. Each anchor plate is then installed on its corresponding anchor bolt 1, and then nuts are tightened on the anchor bolts 1 to fix the anchor plate. However, the above connection method has the disadvantage of having a large number of anchor bolts and being arranged in a concentrated manner, which makes it easy for the anchor bolts to conflict. Summary of the Invention

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the defects of the existing technology in which the number of post-installed anchor bolts in the post-installed embedded part structure for curtain wall installation is large and the arrangement is concentrated, and the anchor bolts are prone to conflict, so as to provide a curtain wall post-installed embedded part structure and its construction method.

[0006] According to a first aspect of the present invention, a curtain wall post-embedded component structure is applied to a concrete cantilevered platform, the curtain wall post-embedded component structure comprising:

[0007] Several through holes are formed by penetrating the concrete cantilever platform along the height direction;

[0008] Several screws are movably inserted into the through hole, one by one. The two ends of the screws extend to the outside of the concrete cantilever platform along the height direction, and are respectively screwed with an upper nut and a lower nut.

[0009] An upper anchor plate is arranged between the upper nut and the opposite upper end surface of the concrete cantilever along the height direction, and a first through hole is formed in the upper anchor plate along the height direction, and the first through hole is used for the screw rod to pass through;

[0010] A lower anchor plate is arranged between the lower nut and the opposite lower end surface of the concrete cantilever along the height direction, and a second through hole is formed in the lower anchor plate along the height direction, and the second through hole is used for the screw rod to pass through;

[0011] A side anchor plate is fixedly connected between the upper anchor plate and the lower anchor plate, the side anchor plate is arranged parallel to the height direction, and is used for abutting against the outer side wall of the concrete cantilever.

[0012] According to the curtain wall rear embedded structure, at least the following technical effects are achieved:

[0013] 1. By arranging the side anchor plate between the upper anchor plate and the lower anchor plate along the height direction, the upper anchor plate, the side anchor plate and the lower anchor plate are connected into one body, and a through hole communicated with the corresponding second through hole is drilled in the concrete cantilever along the height direction through each first through hole; in the process of constructing the curtain wall rear embedded structure, only the same number of screw rods as the first through holes are selected to pass through the corresponding first through hole, through hole and second through hole respectively, and the upper nut and the lower nut are screwed at the relative upper end and the relative lower end along the height direction respectively, so that the upper anchor plate, the side anchor plate and the lower anchor plate connected into one body are fixed as a whole at the curtain wall rail connecting point of the concrete cantilever, which simplifies the construction process and has high construction efficiency; compared with the prior art, in which independent mechanical anchors or chemical anchors are needed to be rear-mounted for each direction anchor plate on the concrete cantilever to independently fix and connect each direction anchor plate, the number of anchors is large and arranged concentratedly, the curtain wall rear embedded structure only needs to rear-mount the screw rod in the concrete cantilever along the height direction, and the upper nut and the lower nut are screwed at the two ends of the screw rod along the height direction respectively, so that the upper anchor plate, the side anchor plate and the lower anchor plate connected into one body are embedded on the concrete cantilever, which can first reduce the number of rear-mounted anchors, save cost; secondly, it can avoid the problem that the rear-mounted anchors arranged along different directions are easy to conflict with each other; finally, it can also avoid the problem of insufficient anchoring depth of the rear-mounted anchor caused by shortening the anchoring depth of the rear-mounted anchor to solve the position conflict of the rear-mounted anchors arranged along different directions.

[0014] 2. The curtain wall rear embedded structure is embedded on the concrete cantilever by the upper anchor plate, the lower anchor plate and the screw rod, and the performance is safe and reliable; compared with the rear chemical anchor bolt, the welding temperature is high in the process of welding and fixing the keel adapter in the corresponding position of the anchor plate, which is easy to pass to the chemical anchor bolt, which reduces the performance of the chemical anchor bolt; the process of welding the keel adapter on the curtain wall rear embedded structure does not affect the performance of the screw rod; compared with the rear mechanical bolt, the stress of the screw rod of the curtain wall rear embedded structure is simpler, the requirement for the material of the screw rod is lower, and the cost is more saved.

[0015] Preferably, the first perforation is provided as a first long strip circular hole, which is arranged parallel to the length direction; and the second perforation is provided as a second long strip circular hole, which is arranged parallel to the length direction.

[0016] Preferably, the size of the first long strip circular hole along the width direction is 1.5-2.5 mm larger than the diameter of the screw rod.

[0017] Preferably, the size of the second long strip circular hole along the width direction is 1.5-2.5 mm larger than the diameter of the screw rod.

[0018] Preferably, a first bolt gasket and a first steel gasket are sequentially arranged between the upper nut and the upper anchor plate from top to bottom along the height direction, and the projection of the first bolt gasket along the height direction falls within the range of the first steel gasket.

[0019] Preferably, a second bolt gasket and a second steel gasket are sequentially arranged between the lower nut and the lower anchor plate from bottom to top along the height direction, and the projection of the second bolt gasket along the height direction falls within the range of the second steel gasket.

[0020] Preferably, the upper anchor plate, the lower anchor plate and the side anchor plate are all made of Q235B steel plate.

[0021] Preferably, the upper anchor plate, the lower anchor plate and the side anchor plate are welded into one body by means of corner joint welding seam; and the distance between the upper anchor plate and the lower anchor plate along the height direction matches the height of the concrete cantilever.

[0022] Preferably, the screw rod comprises a light rod arranged along the height direction, and an upper threaded part and a lower threaded part are respectively arranged at the relative upper end and the relative lower end of the light rod along the height direction, the upper threaded part matches the upper nut, and the lower threaded part matches the lower nut.

[0023] According to the second aspect of the present application, a construction method is provided for constructing the curtain wall rear embedded structure of the first aspect of the present application. The construction method comprises the following steps:

[0024] According to the design drawings, the concrete cantilever platform for installing the curtain wall rear embedded structure is selected;

[0025] According to the design drawings, the required upper anchor plate, lower anchor plate and side anchor plate are selected, and the upper anchor plate, lower anchor plate and side anchor plate are combined into an integrated component according to the design requirements. Then, the component is installed on the concrete cantilever platform, and the upper anchor plate, lower anchor plate and side anchor plate are respectively in contact with the outer side wall of the concrete cantilever platform;

[0026] A through hole is drilled in the concrete cantilever platform along the height direction through the first perforation and in communication with the second perforation;

[0027] The screw rod is sequentially threaded through the first perforation, the through hole and the second perforation, and the upper nut and the lower nut are respectively screwed on the two ends of the screw rod along the height direction until the upper nut abuts against the upper anchor plate and the lower nut abuts against the lower anchor plate.

[0028] According to the construction method of the present application, at least the following technical effects are achieved:

[0029] 1. By fixing the side anchor plate arranged along the height direction between the upper anchor plate and the lower anchor plate, the upper anchor plate, the side anchor plate and the lower anchor plate are connected into an integrated component, and a through hole is drilled in the concrete cantilever platform along the height direction through each first perforation and in communication with the corresponding second perforation. During the construction of the curtain wall rear embedded structure, only the same number of screw rods as the first perforations are required to be threaded through the corresponding first perforations, through holes and second perforations, and the upper nut and the lower nut are respectively screwed on the relative upper end and the relative lower end of the screw rod along the height direction, so as to integrally fix the connected upper anchor plate, side anchor plate and lower anchor plate at the curtain wall batten connection point of the concrete cantilever platform, thereby simplifying the construction process and improving the construction efficiency. Compared with the prior art, in which independent mechanical or chemical anchors are required for each direction anchor plate on the concrete cantilever platform to independently fix and connect each direction anchor plate, the number of anchors is large and the anchors are arranged concentratedly. In the present construction method, only a screw rod is rear-inserted in the concrete cantilever platform along the height direction, and the upper nut and the lower nut are respectively screwed on the two ends of the screw rod along the height direction, so as to integrally embed the connected upper anchor plate, side anchor plate and lower anchor plate on the concrete cantilever platform to obtain the curtain wall rear embedded structure. Firstly, the number of rear-inserted anchors can be reduced to save costs. Secondly, the problem of conflict between rear-inserted anchors arranged along different directions can be avoided. Finally, the problem of insufficient anchoring depth of rear-inserted anchors caused by shortening the anchoring depth of rear-inserted anchors to solve the embedded position conflict of rear-inserted anchors arranged along different directions can also be avoided.

[0030] 2. The construction method is embedded in the concrete cantilever by the way of the upper anchor plate, the lower anchor plate and the screw rod, and the performance is safe and reliable; compared with the post-positioned chemical anchor bolt, the post-positioned embedded part of the curtain wall is fixed in the concrete cantilever through the post-positioned fixing of the anchor bolt glue, in the process of welding and fixing the keel adapter in the corresponding position of the anchor plate, the welding temperature is high and is easy to be transmitted to the anchor bolt glue of the chemical anchor bolt, so that the performance of the anchor bolt glue is reduced after being subjected to high temperature; in the process of welding the keel adapter on the post-positioned embedded part structure of the curtain wall prepared by the construction method, the performance of the screw rod is not affected; compared with the post-positioned mechanical bolt, the screw rod in the post-positioned embedded part structure of the curtain wall prepared by the construction method is subjected to simpler stress, has lower requirement on the material of the screw rod, and is more cost-saving.

[0031] Preferably, after the upper nut is screwed to abut against the upper anchor plate, and after the lower nut is screwed to abut against the lower anchor plate; spot welding is performed between the end of the upper nut away from the upper anchor plate and the screw rod; and spot welding is performed between the end of the lower nut away from the lower anchor plate and the screw rod.

[0032] Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will become apparent to those skilled in the art upon examination of the following and / or can be learned by practice of the application. BRIEF DESCRIPTION OF DRAWINGS

[0033] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0034] Figure 1 It is a structural schematic diagram of the existing curtain wall post-positioned embedded part structure;

[0035] Figure 2 It is a sectional view of a curtain wall post-positioned embedded part structure according to an embodiment of the present application;

[0036] Figure 3 It is Figure 2 It is an enlarged schematic view of A in FIG. 4;

[0037] Figure 4 It is a top view structural schematic diagram of the upper anchor plate in the curtain wall post-positioned embedded part structure according to an embodiment of the present application.

[0038] Explanation of reference signs:

[0039] 1- anchor bolt;

[0040] 2 - concrete overhang, 21 - through hole;

[0041] 3 - main steel structure;

[0042] 41 - screw rod, 42 - upper nut, 43 - lower nut;

[0043] 5 - upper anchor plate, 51 - first through hole;

[0044] 6 - lower anchor plate;

[0045] 7 - side anchor plate;

[0046] 81 - first bolt gasket, 82 - first steel gasket;

[0047] 9 - keel adapter. DETAILED DESCRIPTION

[0048] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0049] In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0050] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0051] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0052] Example one

[0053] As Figures 2 to 4The curtain wall rear embedded structure provided by the embodiment is applied to a concrete cantilever 2, and comprises four through holes 21 and four screw rods 41. Each of the through holes 21 penetrates the concrete cantilever 2 along the height direction. The screw rods 41 are correspondingly arranged in the through holes 21, and the two ends of the screw rods 41 along the height direction respectively extend to the outside of the concrete cantilever 2, and are respectively screwed with upper nuts 42 and lower nuts 43. The upper nut 42 and the opposite upper end surface of the concrete cantilever 2 along the height direction are provided with an upper anchor plate 5. The upper anchor plate 5 is provided with first through holes 51 corresponding to the positions of the screw rods 41 along the height direction. The number of the first through holes 51 is equal to that of the screw rods 41, and the first through holes 51 are used for the corresponding screw rods 41 to pass through. The lower nut 43 and the opposite lower end surface of the concrete cantilever 2 along the height direction are provided with a lower anchor plate 6. The lower anchor plate 6 is provided with second through holes corresponding to the positions of the screw rods 41 along the height direction. The number of the second through holes is equal to that of the screw rods 41, and the second through holes are used for the corresponding screw rods 41 to pass through. The upper anchor plate 5 and the lower anchor plate 6 are fixedly connected with a side anchor plate 7. The side anchor plate 7 is arranged parallel to the height direction, and is used for abutting against the outer side wall of the concrete cantilever 2. It can be understood that the height direction of the embodiment refers to the height direction in the figure. Figure 2

[0054] ​The curtain wall rear embedded structure of the embodiment is connected into one body by fixing the side anchor plate 7 arranged along the height direction between the upper anchor plate 5 and the lower anchor plate 6, and drilling the through hole 21 communicated with the corresponding second perforation in the concrete cantilever 2 along the height direction through each first perforation 51; in the process of constructing the curtain wall rear embedded structure of the embodiment, only the same number of screw rods 41 as the first perforations 51 are needed to be selected to pass through the corresponding first perforation 51, the through hole 21 and the second perforation in turn, and the upper nut 42 and the lower nut 43 are screwed on the screw rod 41 along the height direction relative to the upper end and the lower end respectively, so that the upper anchor plate 5, the side anchor plate 7 and the lower anchor plate 6 connected into one body can be fixed on the curtain wall rail connecting point of the concrete cantilever 2 as a whole, which simplifies the construction process and has high construction efficiency; compared with the prior art, the anchor bolt needs to be independently fixed and connected for each direction anchor plate on the concrete cantilever 2, the number of anchor bolts is large and arranged concentratedly, the curtain wall rear embedded structure of the embodiment only needs to be rear embedded with the screw rod 41 along the height direction in the concrete cantilever 2, and the upper nut 42 and the lower nut 43 are screwed on the two ends of the screw rod 41 along the height direction respectively, so that the upper anchor plate 5, the side anchor plate 7 and the lower anchor plate 6 connected into one body can be embedded and fixed on the concrete cantilever 2 as a whole, which can first reduce the number of rear embedded anchor bolts and save cost; secondly, it can avoid the problem that the rear embedded anchor bolts arranged along different directions are easy to conflict with each other due to the concentrated arrangement of the rear embedded anchor bolts; finally, it can also avoid the problem of insufficient anchoring depth of the rear embedded anchor bolt caused by shortening the anchoring depth of the rear embedded anchor bolt to solve the embedded position conflict of the rear embedded anchor bolts arranged along different directions. The upper anchor plate 5, the side anchor plate 7 and the lower anchor plate 6 are embedded and fixed on the concrete cantilever 2 by the way of tensioning the upper anchor plate 5, the side anchor plate 7 and the lower anchor plate 6 by the upper anchor plate 5, the lower anchor plate 6 and the screw rod 41, which is safe and reliable in performance; compared with the rear embedded chemical anchor bolt 1 fixed in the concrete cantilever 2 by the anchoring glue, in the process of welding and fixing the rail adapter 9 on the corresponding position anchor plate, the high welding temperature is easy to be transmitted to the anchoring glue of the chemical anchor bolt 1, which causes the performance of the anchoring glue to be reduced after being affected by the high temperature, thereby affecting the stability of the connection; in the process of welding the rail adapter 9 on the curtain wall rear embedded structure of the embodiment, the performance of the connection between the screw rod 41 and the upper nut 42 and the lower nut 43 will not be affected; compared with the rear embedded mechanical bolt which is fixed by relying on the friction force with the inside of the concrete cantilever 2, the curtain wall rear embedded structure of the embodiment is fixed by screwing the upper nut 42 and the lower nut 43 on the screw rod 41, the stress of the screw rod 41 of the embodiment is simpler, the requirement for the material of the screw rod 41 is lower, and the cost is more saved.

[0055] It should be noted that the rear embedded anchor bolts arranged along different directions refer to the rear embedded anchor bolts arranged along the height direction, the rear embedded anchor bolts arranged along the length direction and the rear embedded anchor bolts arranged along the width direction.

[0056] The first perforations 51, the through holes 21, the second perforations and the screw rods 41, the upper nuts 42 and the lower nuts 43 are equal in number; in specific applications, the number of the screw rods 41 can be reasonably increased or decreased according to the size of the upper anchor plate 5 or the lower anchor plate 6; for example, in other embodiments, the screw rods 41 are provided in one, two, three, five or other numbers.

[0057] In order to further simplify the construction operation of the curtain wall rear embedded part structure of the embodiment, reduce the construction difficulty and improve the construction efficiency, specifically, the upper nuts 42 and the lower nuts 43 are the same nuts.

[0058] As shown in Figure 4 some embodiments of the present application, the first perforations 51 are provided as first long strip circular holes, and the first long strip circular holes are arranged parallel to the length direction; the second perforations are provided as second long strip circular holes, and the second long strip circular holes are arranged parallel to the length direction. In order to ensure the structural strength of the concrete cantilever 2, steel bars are usually arranged in the concrete cantilever 2; considering that the steel bars may be encountered in the process of drilling the through holes 21 in the concrete cantilever 2 along the height direction to communicate with the corresponding second perforations, in the embodiment, the first perforations 51 and the second perforations are respectively provided as first long strip circular holes and second long strip circular holes, so that if the steel bars are encountered in the process of drilling the through holes 21, the drill bit can be shifted in the first long strip circular hole to avoid the steel bars and drill out the through holes 21 communicating with the corresponding second perforations again. It can be understood that the length direction in the embodiment refers to the length direction in Figure 2 . In specific applications, the length direction in the embodiment can also refer to the direction perpendicular to the length direction in Figure 2 .

[0059] It should be noted that the first long strip circular hole and the second long strip circular hole are the same long strip circular hole, and the projection of the first long strip circular hole along the height direction overlaps the second long strip circular hole.

[0060] In some embodiments of the present application, the size of the first long strip circular hole along the width direction is 1.5 to 2.5 mm larger than the diameter of the screw rod 41, and 2 mm is preferred in the embodiment. In this way, when the center of the through hole 21 drilled in the concrete cantilever 2 along the height direction has a slight deviation from the center of the corresponding first long strip circular hole along the width direction and the deviation is within the allowable error, the position of the screw rod 41 in the first long strip circular hole along the width direction can be adjusted, so that the screw rod 41 passes through the corresponding through hole 21 and the first long strip circular hole along the height direction, further improving the operation flexibility of the curtain wall rear embedded part construction fixed in the concrete cantilever 2 of the embodiment, thereby further reducing the construction difficulty. The width direction in the embodiment refers to the width direction in Figure 2The width direction of the first long strip circular hole refers to the diameter of the first long strip circular hole. In specific applications, the width direction described in the embodiment can also be referred to as the Figure 2 The direction perpendicular to the width direction in the first long strip circular hole.

[0061] In some embodiments of the present application, the size of the second long strip circular hole in the width direction is 1.5-2.5 mm larger than the diameter of the screw rod 41, preferably 2 mm. In this way, when the center of the through hole 21 drilled in the concrete cantilever 2 in the height direction has a slight deviation from the center of the corresponding second long strip circular hole in the width direction within the allowable error, the position of the screw rod 41 in the second long strip circular hole in the width direction can be adjusted, ensuring that the screw rod 41 passes through the corresponding through hole 21 and second long strip circular hole in the height direction, further improving the flexibility of the operation of fixing the curtain wall backset embedded part construction of the embodiment to the concrete cantilever 2, thereby further reducing the difficulty of construction. It should be understood that the size of the second long strip circular hole in the width direction refers to the diameter of the second long strip circular hole.

[0062] As shown in Figure 2 In some embodiments of the present application, the side anchor plate 7 is provided with one and is connected between the opposite left sides of the upper anchor plate 5 and the lower anchor plate 6 in the width direction, so that the upper anchor plate 5, the side anchor plate 7 and the lower anchor plate 6 are connected to form a C-shaped member, so as to be used for the connection of the three-directional curtain wall connector 9 after the curtain wall backset embedded part structure of the embodiment is fixed to the curtain wall profile connection point positioning position on the concrete cantilever 2. Of course, this is only a preferred number and arrangement position of the side anchor plate 7, and the number and arrangement position of the side anchor plate 7 can be reasonably adjusted according to the number and arrangement position of the actual curtain wall connector 9; for example, in other embodiments, the side anchor plate 7 is provided with one and is connected between the opposite front sides or opposite back sides of the upper anchor plate 5 and the lower anchor plate 6 in the length direction; or the side anchor plate 7 is provided with two, and the two side anchor plates 7 are respectively connected between the opposite front sides and the opposite back sides of the upper anchor plate 5 and the lower anchor plate 6 in the length direction.

[0063] As shown in Figure 2 and Figure 3As shown, in some embodiments of the present application, a first bolt gasket 81 and a first steel gasket 82 are sequentially arranged between the upper nut 42 and the upper anchor plate 5 in the height direction from top to bottom, and the projection of the first bolt gasket 81 in the height direction falls within the range of the first steel gasket 82. Considering that the size of the first long circular hole in the length direction is greater than the diameter of the upper nut 42, if only the first bolt gasket 81 is arranged between the upper nut 42 and the upper anchor plate 5, the first bolt gasket 81 cannot fully transmit the fastening force of the upper nut 42 to the upper anchor plate 5; the first steel gasket 82 can cover all or most of the corresponding position of the first long circular hole, thereby ensuring that the fastening force of the upper nut 42 is fully transmitted to the upper anchor plate 5, and the safety and reliability of the curtain wall rear embedded structure of the present embodiment connected and fixed on the concrete cantilever 2 is improved. Specifically, in the process of manufacturing the curtain wall rear embedded structure of the present embodiment, the first steel gasket 82 is first sleeved on the opposite upper end of the screw rod 41, then the first bolt gasket 81 is sleeved on the opposite upper end of the screw rod 41, and finally the upper nut 42 is screwed.

[0064] In order to more fully transmit the fastening force of the upper nut 42 to the upper anchor plate 5, more specifically, the projection of the first long circular hole in the height direction falls within the range of the first steel gasket 82.

[0065] In some embodiments of the present application, a second bolt gasket and a second steel gasket are sequentially arranged between the lower nut 43 and the lower anchor plate 6 in the height direction from bottom to bottom, and the projection of the second bolt gasket in the height direction falls within the range of the second steel gasket. Considering that the size of the second long circular hole in the length direction is greater than the diameter of the lower nut 43, if only the second bolt gasket is arranged between the lower nut 43 and the lower anchor plate 6, the second bolt gasket cannot fully transmit the fastening force of the lower nut 43 to the lower anchor plate 6; the second steel gasket can cover all or most of the corresponding position of the second long circular hole, thereby ensuring that the fastening force of the lower nut 43 is fully transmitted to the lower anchor plate 6, and the safety and reliability of the curtain wall rear embedded structure of the present embodiment connected and fixed on the concrete cantilever 2 is improved. Specifically, in the process of manufacturing the curtain wall rear embedded structure of the present embodiment, the second steel gasket is first sleeved on the opposite lower end of the screw rod 41, then the second bolt gasket is sleeved on the opposite lower end of the screw rod 41, and finally the lower nut 43 is screwed.

[0066] In order to more fully transmit the fastening force of the lower nut 43 to the lower anchor plate 6, more specifically, the projection of the second long circular hole in the height direction falls within the range of the second steel gasket.

[0067] In order to further simplify the construction operation of the curtain wall rear embedded structure of the embodiment, reduce the construction difficulty, and improve the construction efficiency, specifically, the first bolt gasket and the second bolt gasket adopt the same bolt gasket; the first steel gasket and the second steel gasket adopt the same steel gasket.

[0068] In some embodiments of the present application, the upper anchor plate 5, the lower anchor plate 6 and the side anchor plate 7 are all made of Q235B steel plate. The Q235B steel plate has excellent wear resistance, high strength, high hardness and light weight characteristics, and is suitable for assembling the curtain wall rear embedded structure of the embodiment.

[0069] Considering that the Q235B steel plate is prone to cracking when bent, in order to reliably and firmly connect the upper anchor plate 5, the lower anchor plate 6 and the side anchor plate 7 into one body, as shown in Figure 2 , specifically, the upper anchor plate 5, the lower anchor plate 6 and the side anchor plate 7 are welded into one body by means of corner joint welding. Compared with bending and forming the upper anchor plate 5, the lower anchor plate 6 and the side anchor plate 7 into one body, the embodiment can process the upper anchor plate 5, the lower anchor plate 6 and the side anchor plate 7 separately in the processing factory, and then transport them to the construction site to be connected into one body by welding to complete the assembly. The upper anchor plate 5, the lower anchor plate 6 and the side anchor plate 7 can be stacked to reduce the space occupied during transportation, reduce transportation cost and improve transportation efficiency. The assembly work of the upper anchor plate 5, the lower anchor plate 6 and the side anchor plate 7 can be carried out in the nearby open space of the construction site, without occupying the construction position. At the same time, the assembly process is simple, the assembly speed is fast and the assembly difficulty is low. In order to ensure that the upper anchor plate 5, the side anchor plate 7 and the lower anchor plate 6 connected into one body are smoothly embedded in the concrete cantilever 2, more specifically, the distance between the upper anchor plate 5 and the lower anchor plate 6 along the height direction matches the height of the concrete cantilever 2. It can be understood that the way of connecting the upper anchor plate 5, the lower anchor plate 6 and the side anchor plate 7 into one body is not limited to the above-mentioned way. In other embodiments, the upper anchor plate 5, the lower anchor plate 6 and the side anchor plate 7 adopt a steel plate (such as a carbon steel plate) that is not prone to cracking when bent, and the upper anchor plate 5, the side anchor plate 7 and the lower anchor plate 6 are integrally formed by bending. The distance between the upper anchor plate 5 and the lower anchor plate 6 along the height direction matches the height of the concrete cantilever 2. Integrally bending and forming can save the assembly process among the three, and simplify the construction process of the curtain wall rear embedded structure of the embodiment.

[0070] In some embodiments of the present application, the screw rod 41 comprises a light rod arranged along the height direction, and the light rod is provided with an upper threaded part and a lower threaded part at the opposite upper end and the opposite lower end along the height direction, respectively, the upper threaded part is matched with the upper nut 42, and the lower threaded part is matched with the lower nut 43. Compared with the outer thread machined on the outer circumferential surface of the light rod, the embodiment can simplify the machining process of the screw rod 41, reduce the manufacturing cost, and the light rod can reduce the friction between the surrounding wall of the through hole 21 and the screw rod 41, so as to facilitate the insertion of the screw rod 41 through the corresponding through hole 21. In specific applications, the screw rod 41 can also be selected as a common type of screw rod 41 on the market.

[0071] Embodiment two

[0072] As Figures 2 to 4 A construction method provided in the embodiment is shown, which is used for constructing the curtain wall rear embedded part structure described in embodiment one, and the construction method comprises the following steps:

[0073] According to the design drawing, a concrete cantilever 2 for installing the curtain wall rear embedded part structure is selected;

[0074] According to the design drawing, the required upper anchor plate 5, the lower anchor plate 6 and the side anchor plate 7 are selected, and the upper anchor plate 5, the lower anchor plate 6 and the side anchor plate 7 are combined into an integrated component according to the design requirements; then the component is installed at the curtain wall skeleton connecting point positioning position on the concrete cantilever 2, and the upper anchor plate 5, the lower anchor plate 6 and the side anchor plate 7 are respectively in abutment with the outer side wall of the concrete cantilever 2;

[0075] The through hole 21 communicated with the second perforation is drilled in the concrete cantilever 2 along the height direction through the first perforation 51;

[0076] The screw rod 41 is sequentially threaded through the first perforation 51, the through hole 21 and the second perforation, and the upper nut 42 and the lower nut 43 are respectively screwed at the two ends of the screw rod 41 along the height direction, until the upper nut 42 abuts against the upper anchor plate 5, and the lower nut 43 abuts against the lower anchor plate 6, so that the curtain wall rear embedded part structure described in embodiment one is obtained;

[0077] After the curtain wall rear embedded part structure described in embodiment one is constructed, the corresponding skeleton adapter 9 is respectively welded and fixed on the upper anchor plate 5, the lower anchor plate 6 and the side anchor plate 7.

[0078] The construction method of the embodiment first connects the upper anchor plate 5, the side anchor plate 7 and the lower anchor plate 6 into an integrated body, and drills a through hole 21 in the concrete cantilever 2 along the height direction through each first perforation 51, which communicates with the corresponding second perforation; during the process of constructing the curtain wall rear embedded part structure of the first embodiment on the concrete cantilever 2, only the same number of threaded rods 41 as the first perforations 51 are selected to pass through the corresponding first perforations 51, the through holes 21 and the second perforations respectively, and the upper nut 42 and the lower nut 43 are screwed at the upper end and the lower end of the threaded rod 41 along the height direction respectively, so that the upper anchor plate 5, the side anchor plate 7 and the lower anchor plate 6 connected into an integrated body are fixed as a whole at the curtain wall fillet joint point of the concrete cantilever 2, simplifying the construction process and improving the construction efficiency; compared with the prior art, in which independent mechanical anchors or chemical anchors are needed to be placed behind the anchor plate in each direction on the concrete cantilever 2 to independently fix and connect the anchor plates in each direction, the number of anchors is large and the anchors are arranged concentratedly, the construction method of the embodiment only needs to place the threaded rod 41 through along the height direction in the concrete cantilever 2, and the upper nut 42 and the lower nut 43 are screwed at the two ends of the threaded rod 41 along the height direction respectively, so that the upper anchor plate 5, the side anchor plate 7 and the lower anchor plate 6 connected into an integrated body are embedded and fixed as a whole on the concrete cantilever 2 to obtain the curtain wall rear embedded part structure, which can first reduce the number of rear anchors, saving cost; secondly, it can avoid the problem that the rear anchors arranged in different directions are easy to conflict with each other due to the concentrated arrangement of the rear anchors; finally, it can also avoid the problem of insufficient anchoring depth of the rear anchor caused by shortening the anchoring depth of the rear anchor to solve the conflict of the embedded part position of the rear anchor arranged in different directions. The upper anchor plate 5, the lower anchor plate 6 and the threaded rod 41 are pulled together to embed and fix the upper anchor plate 5, the side anchor plate 7 and the lower anchor plate 6 on the concrete cantilever 2, which is safe and reliable in performance; compared with the chemical anchor 1 placed behind in the concrete cantilever 2, the welding temperature is high during the process of welding and fixing the fillet adapter 9 on the corresponding position anchor plate, which is easy to be transmitted to the anchor glue of the chemical anchor 1, causing the performance of the anchor glue to be reduced after being subjected to high temperature; the performance of the connection between the threaded rod 41 and the upper nut 42 and the lower nut 43 will not be affected during the process of welding the adapter on the curtain wall rear embedded part structure obtained by the construction method of the embodiment; compared with the mechanical bolt placed behind, the threaded rod 41 in the curtain wall rear embedded part structure obtained by using the construction method of the embodiment is subjected to simpler stress, and the requirement for the material of the threaded rod 41 is lower, which is more cost-saving.

[0079] As Figure 3As shown, in some embodiments of the present application, after the upper nut 42 is screwed to abut the upper anchor plate 5 and the lower nut 43 is screwed to abut the lower anchor plate 6, spot welding is performed between the end of the upper nut 42 away from the upper anchor plate 5 and the screw rod 41, and spot welding is performed between the end of the lower nut 43 away from the lower anchor plate 6 and the screw rod 41. By means of spot welding, the locking force between the screw rod 41 and the upper nut 42 and the lower nut 43 is increased, so that the upper nut 42 or the lower nut 43 cannot move along the height direction relative to the screw rod 41, and the use safety of the prepared curtain wall rear embedded structure is further improved. Specifically, in order to further improve the locking force between the screw rod 41 and the upper nut 42 and the lower nut 43, symmetric spot welding is adopted between the screw rod 41 and the upper nut 42 and between the screw rod 41 and the lower nut 43.

[0080] In some embodiments of the present application, the upper anchor plate 5, the lower anchor plate 6 and the side anchor plate 7 are selected according to the design drawing, and the upper anchor plate 5, the lower anchor plate 6 and the side anchor plate 7 are combined into an integrated component, comprising:

[0081] According to the design drawing, the outer dimensions of the upper anchor plate 5, the lower anchor plate 6 and the side anchor plate 7 are respectively processed, and first and second through holes 51 and 52 are respectively formed on the upper anchor plate 5 and the lower anchor plate 6.

[0082] The upper anchor plate 5, the lower anchor plate 6 and the side anchor plate 7 are welded into an integrated component by means of corner joint welding.

[0083] Compared with bending and processing the upper anchor plate 5, the lower anchor plate 6 and the side anchor plate 7 into an integrated component, in the present embodiment, the upper anchor plate 5, the lower anchor plate 6 and the side anchor plate 7 are separately processed in a processing factory, and then transported to the construction site to be assembled into an integrated component by welding. The upper anchor plate 5, the lower anchor plate 6 and the side anchor plate 7 can be stacked to reduce the space occupied during transportation, reduce transportation cost and improve transportation efficiency. The assembly work of the upper anchor plate 5, the lower anchor plate 6 and the side anchor plate 7 can be carried out on the nearby open space of the construction site, without occupying the construction position. The assembly process is simple, fast and low in difficulty.

[0084] Specifically, the concrete cantilever 2 for installing the curtain wall rear embedded structure is selected according to the design drawing, comprising:

[0085] According to the design drawing, the main steel structure 3 and the concrete cantilever 2 are constructed.

[0086] Obviously, the above embodiments are merely example for clearly illustrating but not limitation to the embodiments. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. Here, all the embodiments need not and can not be enumerated. The obvious changes or variations derived from the above description are still within the protection scope of the present application.

Claims

1. A curtain wall rear-embedded fitting structure applied to a concrete cantilever platform (2), characterized in that, The curtain wall rear-mounted embedded structure comprises: a plurality of through holes (21) formed through the concrete cantilever (2) in the height direction; a plurality of screw rods (41) correspondingly and movably arranged in the through holes (21), both ends of the screw rods (41) in the height direction respectively extend to the outside of the concrete cantilever (2), and the upper nut (42) and the lower nut (43) are respectively screwed. an upper anchor plate (5) arranged between the upper nut (42) and the opposite upper end surface of the concrete cantilever (2) in the height direction, a first through hole (51) is formed through the upper anchor plate (5) in the height direction, and the first through hole (51) is used for passing through the screw rod (41). a lower anchor plate (6) arranged between the lower nut (43) and the opposite lower end surface of the concrete cantilever (2) in the height direction, a second through hole is formed through the lower anchor plate (6) in the height direction, and the second through hole is used for passing through the screw rod (41). a side anchor plate (7) fixedly connected between the upper anchor plate (5) and the lower anchor plate (6), the side anchor plate (7) is arranged parallel to the height direction, and is used for abutting against the outer side wall of the concrete cantilever (2). The first through hole (51) is a first long strip circular hole, the first long strip circular hole is arranged parallel to the length direction; the second through hole is a second long strip circular hole, the second long strip circular hole is arranged parallel to the length direction; the projection of the first long strip circular hole in the height direction overlaps the second long strip circular hole. The upper anchor plate (5), the lower anchor plate (6) and the side anchor plate (7) are welded into one body by means of corner joint welding seam. The through hole (21) in communication with the corresponding second through hole is drilled through the concrete cantilever (2) in the height direction through each first through hole (51).

2. The curtain wall rearset structure according to claim 1, wherein, The size of the first long strip circular hole in the width direction is 1.5mm to 2.5mm larger than the diameter of the screw rod (41). And / or, the size of the second long strip circular hole in the width direction is 1.5mm to 2.5mm larger than the diameter of the screw rod (41).

3. The curtain wall rearset structure according to claim 1, wherein A first bolt gasket (81) and a first steel gasket (82) are sequentially arranged between the upper nut (42) and the upper anchor plate (5) in the height direction from top to bottom, and the projection of the first bolt gasket (81) in the height direction falls within the range of the first steel gasket (82).

4. The structure of a curtain wall rear embedded part according to any one of claims 1 to 3, characterized in that, A second bolt gasket and a second steel gasket are sequentially arranged between the lower nut (43) and the lower anchor plate (6) in the height direction from bottom to top, and the projection of the second bolt gasket in the height direction falls within the range of the second steel gasket.

5. The curtain wall rearset structure according to claim 1, wherein The upper anchor plate (5), the lower anchor plate (6) and the side anchor plate (7) are all made of Q235B steel plate.

6. The structure of a curtain wall rear embedded part according to claim 5, characterized in that, The upper anchor plate (5), the lower anchor plate (6) and the side anchor plate (7) are welded into one body by means of corner joint welding seam; the distance between the upper anchor plate (5) and the lower anchor plate (6) in the height direction matches the height of the concrete cantilever (2).

7. The structure of a curtain wall rear embedded part according to claim 1, characterized in that, The screw rod (41) comprises a light rod arranged along a height direction, and a relative upper end and a relative lower end of the light rod along the height direction are respectively provided with an upper threaded part and a lower threaded part, the upper threaded part is matched with the upper nut (42), and the lower threaded part is matched with the lower nut (43).

8. A construction method, characterized by, The construction method for constructing the curtain wall rear embedded part structure in any one of claims 1 to 7 comprises the following steps: Selecting a concrete cantilever according to design drawings for installing the curtain wall rear embedded part structure; Selecting required upper anchor plates (5), lower anchor plates (6) and side anchor plates (7) according to design drawings, and combining the upper anchor plates (5), the lower anchor plates (6) and the side anchor plates (7) into an integrated component according to design requirements; then installing the component on the concrete cantilever (2), and respectively abutting the upper anchor plates (5), the lower anchor plates (6) and the side anchor plates (7) with the outer side walls of the concrete cantilever (2); Drilling a through hole (21) communicated with the second perforation in the concrete cantilever (2) along the height direction through the first perforation (51); Passing the screw rod (41) through the first perforation (51), the through hole (21) and the second perforation in sequence, and respectively screwing the upper nut (42) and the lower nut (43) on both ends of the screw rod (41) along the height direction, until the upper nut (42) abuts against the upper anchor plate (5), and the lower nut (43) abuts against the lower anchor plate (6).

9. A method of construction according to claim 8, wherein, After screwing the upper nut (42) to the position abutting against the upper anchor plate (5), and screwing the lower nut (43) to the position abutting against the lower anchor plate (6); spot welding and fixing between the end of the upper nut (42) away from the upper anchor plate (5) and the screw rod (41); and spot welding and fixing between the end of the lower nut (43) away from the lower anchor plate (6) and the screw rod (41).

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