Outer wall window mounting node structure and construction method thereof

Abstract

The invention relates to the technical field of building structure construction, in particular to an outer wall window mounting node structure and a construction method thereof, and the outer wall window mounting node structure comprises an outer wall and a mounting frame body; the installation frame body is arranged on the basis of the preset window hole in the outer wall body, and the installation frame body is reliably fixed to the outer wall body through the connecting piece and the fastening piece which are arranged between the outer wall body and the installation frame body, so that standardization and modularization of window installation are achieved; a sealing waterproof layer is arranged between the connecting piece and the outer wall body, rainwater infiltration can be effectively blocked, and the waterproof performance of the joint is improved; through the synergistic effect of the connecting piece and the fastening piece in the reinforcing component, the stability and the wind pressure resistance of the whole structure are improved, and the reinforcing component is suitable for the construction requirements of various curtain wall systems and fabricated buildings, has the advantages of being simple in structure, convenient and fast to install, excellent in sealing performance and high in universality and is beneficial to improving the engineering quality and the construction efficiency of an outer wall system.

Description

Technical Field

[0001] This invention relates to the field of building structure construction technology, specifically to an exterior wall window installation node structure and its construction method. Background Technology

[0002] With the continuous development of building technology, the concept of green building has become increasingly popular, prompting the continuous updating and optimization of building materials and structural systems. Among them, ALC (Autoclaved Lightweight Concrete) exterior walls have been widely used in various public buildings and high-rise residential projects due to their comprehensive advantages such as light weight, high construction efficiency, excellent thermal insulation performance and environmental friendliness, and are gradually becoming an important part of the exterior wall cladding system in prefabricated buildings.

[0003] However, in existing building construction, the window installation nodes in the building envelope system, as a key component connecting the exterior wall and building openings, still face numerous technical bottlenecks, affecting the overall structural reliability and durability. Specifically, current ALC wall window openings typically use flat steel as reinforcing components, mechanically connecting the window frame to the flat steel to enhance structural stability. However, due to the considerable thickness of the flat steel, on-site installation often encounters difficulties in fixing, positioning deviations, and loose connections, affecting installation quality. Furthermore, with prolonged use, this connection structure carries the risk of loosening, easily causing window frame displacement or deformation.

[0004] Furthermore, in this connection node, there are usually many seams between the ALC wall panel, flat steel, and window frame. These dissimilar material connection areas are susceptible to micro-cracks caused by factors such as building material shrinkage and temperature changes, leading to seal failure. Currently used sealant filling or mortar caulking techniques are insufficient to effectively resist rainwater penetration under long-term service conditions. Especially in high-rise buildings, the risk of leakage is significantly amplified by wind pressure and rainwater erosion, seriously affecting the functionality and safety of the building. Summary of the Invention

[0005] This invention provides a structure for installing windows on an exterior wall and a method for doing so, in order to solve the problems of difficult construction and easy leakage in the existing technology of window installation nodes on wall panels.

[0006] In a first aspect, the present invention provides an exterior wall window installation node structure, comprising: an exterior wall and an installation frame; the exterior wall is provided with a window opening; the installation frame is fixedly connected to the exterior wall by a reinforcing member, the reinforcing member including a connector and a fastener, the connector being disposed between the exterior wall and the installation frame, and the fastener being sequentially inserted through the installation frame, the connector, and the exterior wall to fix the installation frame to the exterior wall; a sealing and waterproof layer is provided between the connector and the exterior wall.

[0007] Beneficial effects: This invention provides a window installation node structure for exterior walls. By setting an installation frame on the basis of a pre-set window opening in the exterior wall, and reliably fixing the installation frame to the exterior wall using connectors and fasteners located between the exterior wall and the installation frame, standardization and modularization of window installation are achieved. A sealing and waterproof layer is provided between the connector and the exterior wall, effectively preventing rainwater infiltration and improving the waterproof performance at the node. The synergistic effect of the connectors and fasteners in the reinforcing components improves the stability and wind pressure resistance of the overall structure. It is suitable for the construction needs of various curtain wall systems and prefabricated buildings, and has the advantages of simple structure, convenient installation, excellent sealing performance, and strong versatility, which is beneficial to improving the engineering quality and construction efficiency of exterior wall systems.

[0008] According to a first aspect of the present invention, wall panel grooves are formed on the inner and outer sides of the outer wall, and a mounting boss is formed in the middle of the outer wall. The mounting frame is fixedly connected to the mounting boss through the reinforcing member.

[0009] According to a first aspect of the present invention, the connector is a flat steel bar, and the fastener is an expansion bolt; The connector is disposed between the mounting frame and the mounting boss. The width of the connector is smaller than that of the mounting frame. The width of the mounting frame is the same as that of the mounting boss. The inner and outer sides of the mounting frame are flush with the mounting boss.

[0010] According to a first aspect of the present invention, the sealing and waterproof layer includes a first waterproof layer and a second waterproof layer. The first waterproof layer is disposed between the mounting boss and the connector, and the second waterproof layer is disposed between the mounting boss and the mounting frame to cover the connector. The two sides of the second waterproof layer in the inward and outward directions are flush with the mounting boss.

[0011] According to a first aspect of the present invention, the coating thickness of the first waterproof layer is greater than or equal to 10 mm.

[0012] According to a first aspect of the present invention, a foaming layer is provided between the connector and the mounting frame.

[0013] According to a first aspect of the present invention, a filling layer is provided in the groove of the wall panel, and the contact end between the filling layer and the mounting frame is sealed by a sealing layer.

[0014] According to a first aspect of the present invention, the filling layer is provided in multiple layers, and a waterproof corner strip is provided between the filling layer and the second waterproof layer.

[0015] According to a first aspect of the present invention, both the outer wall and the surface of the filling layer are coated with a waterproof coating layer, the thickness of which is greater than or equal to 2 mm.

[0016] Secondly, the present invention also provides a method for installing windows on an exterior wall, comprising the following steps: Carry out exterior wall construction and reserve window openings; Apply the first waterproof layer to the exterior walls on both sides above and below the window opening; Install the connectors before the first waterproof layer has initially set, and fix the connectors to the exterior wall. The mounting frame, connectors, and the exterior wall are fixedly connected by fasteners. Apply a second waterproof layer to both the inner and outer sides of the connector, and fill the gap between the connector and the mounting frame with expanding foam. Waterproof corner strips are pasted on both the inner and outer sides of the second waterproof layer, and a filling layer is set in the groove of the wall panel; Apply sealant to the chamfered edges where the mounting frame and the filler layer meet; Apply a waterproof coating to the surface of the mounting frame and filler layer. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of a window installation node structure on an exterior wall according to an embodiment of the present invention; Figure 2 for Figure 1 A magnified view of part A in the diagram; Explanation of reference numerals in the attached figures: 1. Exterior wall; 11. Mounting boss; 2. Mounting frame; 3. Reinforcing components; 31. Connectors; 32. Fasteners; 4. Sealing and waterproofing layer; 41. First waterproofing layer; 42. Second waterproofing layer; 5. Filling layer; 6. Sealing layer; 7. Foaming layer. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Reference Figure 1 and Figure 2 As shown, in a first aspect of the present invention, a window mounting node structure for an exterior wall 1 is provided, comprising: an exterior wall 1 and a mounting frame 2; the exterior wall 1 is provided with a window opening; the mounting frame 2 is fixedly connected to the exterior wall 1 by a reinforcing member 3, the reinforcing member 3 including a connector 31 and a fastener 32, the connector 31 being disposed between the exterior wall 1 and the mounting frame 2, and the fastener 32 being sequentially inserted through the mounting frame 2, the connector 31 and the exterior wall 1, to be suitable for fixing the mounting frame 2 to the exterior wall 1; a sealing and waterproof layer 4 is provided between the connector 31 and the exterior wall 1.

[0021] Specifically, by setting up an installation frame 2 based on the pre-set window opening on the exterior wall 1, and reliably fixing the installation frame 2 to the exterior wall 1 through the connector 31 and fasteners 32 located between the exterior wall 1 and the installation frame 2, the standardization and modularization of window installation are achieved; a sealing and waterproof layer 4 is set between the connector 31 and the exterior wall 1, which can effectively prevent rainwater from seeping in and improve the waterproof performance at the joint; the synergistic effect of the connector 31 and fasteners 32 in the reinforcing component 3 improves the stability and wind pressure resistance of the overall structure, which is suitable for the construction needs of various curtain wall systems and prefabricated buildings. It has the advantages of simple structure, convenient installation, excellent sealing performance and strong versatility, which is conducive to improving the engineering quality and construction efficiency of the exterior wall system.

[0022] Understandably, by setting up reinforcing components 3 to reliably connect the installation frame 2 to the outer wall 1, the overall stability of the installation structure is improved, effectively avoiding problems such as deformation and misalignment caused by uneven stress or loose connections during window use; by setting a sealing and waterproof layer 4 between the connector 31 and the outer wall 1, rainwater or water vapor can be effectively prevented from penetrating into the wall, improving the waterproof performance of the structure and extending the service life of the building's external envelope system; In a first aspect of the present invention, wall panel grooves are formed on the inner and outer sides of the outer wall 1, and a mounting boss 11 is formed in the middle of the outer wall 1. The mounting frame 2 is fixedly connected to the mounting boss 11 by a reinforcing member 3.

[0023] Specifically, by setting wall panel grooves on both the inner and outer sides of the outer wall 1 and forming an installation boss 11 in the middle of the outer wall 1, the installation frame 2 is directly fixedly connected to the installation boss 11 through the reinforcing component 3. The setting of the installation boss 11 provides a clear positioning benchmark for the installation frame 2, which can improve the alignment accuracy during the installation process and avoid installation errors caused by inaccurate positioning. The wall panel grooves have a guiding and limiting function in structure, which facilitates quick positioning and installation on the construction site, improves construction efficiency, and reduces the dependence on construction accuracy.

[0024] In a first aspect of the present invention, the connector 31 is a flat steel bar and the fastener 32 is an expansion bolt; The connector 31 is located between the mounting frame 2 and the mounting boss 11. The width of the connector 31 is smaller than that of the mounting frame 2. The width of the mounting frame 2 is the same as that of the mounting boss 11. The inner and outer sides of the mounting frame 2 are flush with the mounting boss 11.

[0025] Specifically, the flat steel as connector 31 has good structural strength and bending stiffness. Its flat structure facilitates a tight fit with the mounting frame 2 and the mounting boss 11, improving the contact stability of the connection area. The fastener 32 uses expansion bolts, which can form a firm anchor in concrete or solid walls, improving the overall load-bearing capacity and seismic performance of the connection node, and is suitable for various exterior wall installation environments. The connector 31 is arranged between the mounting frame 2 and the mounting boss 11 to form an intermediate reinforcement layer, which improves the local rigidity and connection reliability of the connection part without increasing the structural thickness.

[0026] Understandably, by designing the connector 31 to be narrower than the mounting frame 2, the connection strength is ensured while avoiding exposure that could affect the overall appearance of the structure. This helps with subsequent sealing and aesthetic requirements. The width of the mounting frame 2 is the same as that of the mounting boss 11, and both are flush on the inner and outer sides, so that the entire window node forms a unified and continuous mounting surface, improving the overall structure and the consistency of the facade, and facilitating standardized and modular construction. In a first aspect of the present invention, the sealing waterproof layer 4 includes a first waterproof layer 41 and a second waterproof layer 42. The first waterproof layer 41 is disposed between the mounting boss 11 and the connector 31, and the second waterproof layer 42 is disposed between the mounting boss 11 and the mounting frame 2 to cover the connector 31. The two sides of the second waterproof layer 42 in the inward and outward directions are flush with the mounting boss 11.

[0027] Specifically, the first waterproof layer 41 is set between the mounting boss 11 and the connector 31, forming a first sealing barrier between the metal component and the concrete base, effectively blocking capillary seepage channels generated by the metal connection path and enhancing the basic waterproofing capability at the joint; the second waterproof layer 42 covers the area between the mounting boss 11 and the mounting frame 2 and encloses the connector 31, effectively achieving full-enclosed waterproof protection for the connector 31, preventing rainwater from entering the interior or wall through structural gaps, and improving the weather resistance and service life of the structure; the second waterproof layer 42 is flush with both the inner and outer sides of the mounting boss 11, ensuring the overall continuity and uniform thickness of the sealing layer 6, avoiding weak points in waterproofing caused by local curling, bulging or misalignment, and improving the stability of the overall construction quality.

[0028] Understandably, the double-layer waterproof structure forms a multi-layer sealing system from the inside out. Even if one waterproof layer is defective due to construction or aging, the other layer can still provide redundant protection, enhancing the reliability of the structure in long-term use.

[0029] In a first aspect embodiment of the present invention, the coating thickness of the first waterproof layer 41 is greater than or equal to 10 mm.

[0030] Specifically, by setting the coating thickness of the first waterproof layer 41 to be greater than or equal to 10mm, its tensile crack resistance and puncture resistance are effectively enhanced, improving the protective stability under conditions such as structural micro-movement and thermal expansion and contraction. A waterproof layer with a thickness of greater than or equal to 10mm can form a stable and continuous sealing barrier, with greater tolerance in actual construction, and is less likely to cause weak points due to uneven local coating or construction errors, thereby improving the consistency of overall construction quality.

[0031] In a first aspect of the present invention, a foam layer 7 is provided between the connector 31 and the mounting frame 2.

[0032] Specifically, the expanding foam layer 7, as a filler material, can effectively fill the tiny gaps between the connector 31 and the mounting frame 2, preventing the occurrence of cold and thermal bridges and improving the overall thermal insulation performance of the joint. The expanding foam has good flexibility and elasticity, which can play a buffering and stress-relieving role when the structure expands and contracts with heat or undergoes slight displacement, preventing stress concentration or interface cracking caused by rigid connection. The expanding foam layer 7 further improves the sealing performance of the structure, preventing air, water vapor, dust and other substances from seeping into the room or the interior of the wall through the joint, thereby enhancing the airtightness and waterproof performance of the entire joint.

[0033] In a first aspect of the present invention, a filling layer 5 is provided in the groove of the wall panel, and the contact end between the filling layer 5 and the mounting frame 2 is sealed by a sealing layer 6.

[0034] Specifically, the filling layer 5 effectively fills the cavity inside the wall panel groove, improves the overall density of the node structure, prevents air, moisture or foreign objects from seeping in through the gaps, and enhances the sealing continuity of the outer envelope structure; a sealing layer 6 is set between the filling layer 5 and the installation frame 2 to form an effective interface sealing protection, further blocking the heat and moisture transfer path and improving the air tightness and water tightness of the node.

[0035] In a first aspect embodiment of the present invention, the filling layer 5 is provided in multiple layers, and a waterproof corner strip is provided between the filling layer 5 and the second waterproof layer 42.

[0036] Specifically, a waterproof corner strip is installed between the filling layer 5 and the second waterproof layer 42, which can form a reliable sealing node at structural corners or interface changes, preventing the waterproof layer from cracking or falling off due to interface misalignment or tension concentration; the waterproof corner strip has good structural rigidity and fit, and plays a role in supporting, guiding and protecting the edge of the waterproof layer between multi-layer structures, significantly improving the structural integrity of the waterproof system. According to a first aspect of the present invention, both the outer wall 1 and the filling layer 5 on the outer side are coated with a waterproof coating layer, and the thickness of the waterproof coating layer is greater than or equal to 2 mm.

[0037] Specifically, the exterior wall 1 and the filling layer 5 are uniformly coated with a waterproof coating layer to form a continuous and integral outer surface protective film, which effectively blocks the intrusion of rainwater, moisture and wind sand, and improves the overall waterproof level of the joint area; the thickness of the waterproof coating layer is controlled to be greater than or equal to 2mm, which effectively enhances the coating's resistance to cracking, aging and erosion, extends its service life in the external environment, and reduces the frequency of later maintenance.

[0038] Secondly, the present invention also provides a method for installing windows on an exterior wall 1, comprising the following steps: Construction of exterior wall 1 is carried out, and window openings are reserved; Apply the first waterproof layer 41 to the outer wall 1 on both sides above and below the window opening; Before the first waterproof layer 41 has initially set, install the connector 31 and fix the connector 31 to the outer wall 1; The mounting frame 2, connector 31 and outer wall 1 are fixedly connected by fasteners 32; Apply a second waterproof layer 42 to both the inner and outer sides of the connector 31, and fill the gap between the connector 31 and the mounting frame 2 with expanding foam. Waterproof corner strips are pasted on both the inner and outer sides of the second waterproof layer 42, and a filling layer 5 is set in the groove of the wall panel; Apply sealant to the chamfered area where the mounting frame 2 and the filling layer 5 meet; Apply a waterproof coating to the surfaces of the mounting frame 2 and the filling layer 5.

[0039] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A window installation node structure for an exterior wall, characterized in that, include: The exterior wall (1) is provided with window openings; The mounting frame (2) is fixedly connected to the outer wall (1) by a reinforcing member (3). The reinforcing member (3) includes a connector (31) and a fastener (32). The connector (31) is located between the outer wall (1) and the mounting frame (2). The fastener (32) is sequentially inserted through the mounting frame (2), the connector (31), and the outer wall (1) to fix the mounting frame (2) onto the outer wall (1). A sealing and waterproof layer (4) is provided between the connector (31) and the outer wall (1).

2. The exterior wall window installation node structure according to claim 1, characterized in that, Wall panel grooves are formed on the inner and outer sides of the outer wall (1), and an installation boss (11) is formed in the middle of the outer wall (1). The installation frame (2) is fixedly connected to the installation boss (11) through the reinforcing member (3).

3. The exterior wall window installation node structure according to claim 2, characterized in that, The connector (31) is a flat steel, and the fastener (32) is an expansion bolt; The connector (31) is located between the mounting frame (2) and the mounting boss (11). The width of the connector (31) is smaller than that of the mounting frame (2). The width of the mounting frame (2) is the same as that of the mounting boss (11). The inner and outer sides of the mounting frame (2) are flush with the mounting boss (11).

4. The exterior wall window installation node structure according to claim 3, characterized in that, The sealing and waterproof layer (4) includes a first waterproof layer (41) and a second waterproof layer (42). The first waterproof layer (41) is disposed between the mounting boss (11) and the connector (31). The second waterproof layer (42) is disposed between the mounting boss (11) and the mounting frame (2) to cover the connector (31). The two sides of the second waterproof layer (42) along the inside and outside direction are flush with the mounting boss (11).

5. The exterior wall window installation node structure according to claim 4, characterized in that, The thickness of the first waterproof layer (41) is greater than or equal to 10 mm.

6. The exterior wall window installation node structure according to any one of claims 1 to 5, characterized in that, A foam layer (7) is provided between the connector (31) and the mounting frame (2).

7. The exterior wall window installation node structure according to claim 4, characterized in that, The wall panel groove is provided with a filling layer (5), and the contact end between the filling layer (5) and the mounting frame (2) is sealed by a sealing layer (6).

8. The exterior wall window installation node structure according to claim 7, characterized in that, The filling layer (5) is arranged in multiple layers, and a waterproof corner strip is provided between the filling layer (5) and the second waterproof layer (42).

9. The exterior wall window installation node structure according to claim 8, characterized in that, The outer wall (1) located on the outside and the filling layer (5) are both coated with a waterproof coating layer, and the thickness of the waterproof coating layer is greater than or equal to 2 mm.

10. A method for installing windows on an exterior wall, characterized in that, Includes the following steps: Construction of the exterior wall (1) is carried out, and window openings are reserved; Apply the first waterproof layer (41) to the outer wall (1) on both sides above and below the window opening. Install the connector (31) before the first waterproof layer (41) sets, and fix the connector (31) to the outer wall (1); The mounting frame (2), connector (31) and the outer wall (1) are fixedly connected by fasteners (32); Apply a second waterproof layer (42) to both the inner and outer sides of the connector (31), and fill the gap between the connector (31) and the mounting frame (2) with expanding foam. Waterproof corner strips are pasted on the inner and outer sides of the second waterproof layer (42), and a filling layer (5) is set in the groove of the wall panel. Apply sealant to the chamfered area where the mounting frame (2) and the filling layer (5) meet; Apply a waterproof coating layer to the surface of the mounting frame (2) and the filling layer (5).

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