Embedded-keel-free installation system for large curtain wall

Abstract

The utility model provides a large curtain wall pre-embedding-free keel installation system which solves the problems of a traditional keel pre-embedding construction scheme, reduces installation cost, improves installation accuracy, construction efficiency and reliability, reduces safety risks and meanwhile reduces influences on a main body structure. An upper end plate and a lower end plate are respectively arranged on the top surface and the bottom surface of the reinforced concrete beam; the outer side and the inner side of the reinforced concrete beam are each provided with a plurality of vertically-distributed screws, and the upper ends and the lower ends of the screws located on the outer side of the reinforced concrete beam are connected with the upper end plate and the lower end plate correspondingly. When the curtain wall main keel is installed, the curtain wall main keel is located between two reinforced concrete beams corresponding to an upper floor and a lower floor of a building, the upper end of the curtain wall main keel is connected with the lower end plate located on the upper layer, and the lower end of the curtain wall main keel is connected with the upper end plate located on the lower layer.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of construction engineering construction facilities, concretely relates to a large -scale curtain wall exempts from pre -bored keel mounting system. BACKGROUND

[0002] With the continuous progress of modern building technology and the acceleration of urbanization process, as the outer envelope structure of building, building curtain wall not only meets the basic needs of building lighting, ventilation, heat insulation, heat preservation and other functions, but also becomes an important element of modern architectural design in appearance, and gives the building unique aesthetic value and visual impact. Large curtain wall is increasingly widely used in high-rise, super high-rise buildings and large commercial complex buildings and other projects, and its scale and complexity are constantly improving.

[0003] In the construction process of high-rise building, large wall curtain is often located on the outside of the building, and the reinforced concrete slab (also called concrete floor slab) is poured, and the reinforced concrete beam is poured on the outside of the reinforced concrete slab. The upper and lower ends of the keel are fixedly connected with the upper and lower adjacent reinforced concrete beams between the upper and lower adjacent reinforced concrete beams, and then the wall curtain is installed on the keel.

[0004] The keel is the core support part of the curtain wall structure, which bears the important task of transmitting various loads (such as wind load, earthquake load, dead weight, etc.) borne by the curtain wall panel to the main structure, directly related to the overall stability, safety and service life of the curtain wall. Therefore, the installation quality and precision of large curtain wall keel are very important, which is the key link to ensure the quality of curtain wall engineering.

[0005] In the traditional installation process of large curtain wall, pre-burying the keel in the reinforced concrete beam is a common construction method. However, this method has many problems. First of all, the pre-burying work needs to be carried out in the main building construction stage, which requires high precision. Once there is deviation, it is difficult to adjust in the later stage, which may affect the accurate installation position of the curtain wall keel, and then affect the overall flatness and perpendicularity of the curtain wall. Secondly, the pre-burying process is relatively complex, which needs to consume a lot of time and manpower, increases the construction cost and construction period. The main reason is that the pre-burying part will hinder the installation of the concrete formwork, affecting the construction efficiency and the smoothness of the formwork installation. In the concrete vibrating link, due to the action force of vibration, the pre-burying part is prone to displacement, which may cause misalignment between the pre-burying part and the keel during installation, seriously affecting the construction precision and quality. The pre-burying part may also be missed during installation, which not only delays the construction progress, but also increases the additional remedial cost and construction difficulty. Moreover, the pre-burying part may be affected by factors such as concrete corrosion during long-term use, which reduces its connection strength and durability, and thus affects the safety and service life of the curtain wall.

[0006] Given the numerous problems with existing large curtain wall keel installation technologies, the construction industry urgently needs a new keel installation method that can improve installation accuracy, construction efficiency, reduce safety risks, and minimize the impact on the main structure. Utility Model Content

[0007] This invention provides a large-scale curtain wall installation system without pre-embedded keel, overcoming the problems of traditional pre-embedded keel construction methods, reducing installation costs, improving installation accuracy, construction efficiency, and reliability, reducing safety risks, and minimizing impact on the main structure.

[0008] This utility model is achieved through the following technical solution:

[0009] A large curtain wall installation system without pre-embedded keel includes a reinforced concrete slab and a reinforced concrete beam. The reinforced concrete beam is located at the outer end of the reinforced concrete slab, and the bottom surface of the reinforced concrete beam is lower than the bottom surface of the reinforced concrete slab. The top and bottom surfaces of the reinforced concrete beam are respectively provided with an upper end plate and a lower end plate.

[0010] Multiple vertically distributed threaded rods are provided on the outer and inner sides of the reinforced concrete beam, and the upper and lower ends of the threaded rods located on the outer side of the reinforced concrete beam are respectively connected to the upper end plate and the lower end plate.

[0011] The reinforced concrete slab has vertically penetrating bolt holes located near the inner side of the reinforced concrete beam. The bolts located inside the reinforced concrete beam pass through the bolt holes and are respectively connected to the upper end plate and the lower end plate.

[0012] When installing the main curtain wall keel, the main curtain wall keel is located between two reinforced concrete beams corresponding to the upper and lower floors of the building. The upper end of the main curtain wall keel is connected to the lower end plate of the upper floor, and the lower end of the main curtain wall keel is connected to the upper end plate of the lower floor.

[0013] Furthermore, both the upper and lower end plates are provided with screw holes at the connection points with the screw rod, and the end of the screw rod passes through the screw holes and is fixedly connected by a nut.

[0014] Furthermore, a connecting rod is embedded at the bottom of the reinforced concrete beam, and the lower end of the connecting rod passes through the lower end plate and is connected to the lower end plate.

[0015] Furthermore, two shear-resistant members are provided on both sides of the lower end plate and attached to the inner and outer sides of the reinforced concrete beam. The shear-resistant members and the screw holes on the lower end plate are staggered along the length of the reinforced concrete beam.

[0016] Furthermore, the shear-resistant component is a plate-shaped component of 50×50×5mm, and the distance between the shear-resistant component and the screw hole is 0.5m.

[0017] Furthermore, the diameter of the bolt hole is 22-26 mm.

[0018] The beneficial effects achieved by this utility model compared with the prior art are as follows:

[0019] 1. The large curtain wall installation system without pre-embedded keel provided by this utility model installs upper and lower end plates on the top and bottom of reinforced concrete beams using screws. When installing the main keel of the curtain wall, the main keel is located between two reinforced concrete beams corresponding to the upper and lower floors of the building. The upper end of the main keel is connected to the lower end plate on the upper floor, and the lower end of the main keel is connected to the upper end plate on the lower floor. This replaces the traditional method of pre-embedding the required pre-embedded parts in the concrete of the main structure in curtain wall construction. It overcomes the defects of traditional processes, such as pre-embedded parts hindering the installation of concrete formwork and causing misalignment between pre-embedded parts and keel during concrete vibration. This improves the efficiency, accuracy, and quality of large curtain wall construction and reduces construction costs and risks.

[0020] 2. A connecting rod is embedded at the bottom of the reinforced concrete beam. The lower end of the connecting rod is connected to the lower end plate, thereby improving the firmness of the lower end plate and ensuring the firmness of the connection between the lower end plate and the main keel of the curtain wall.

[0021] 3. Two shear members are installed on both sides of the lower end plate, attached to the inner and outer sides of the reinforced concrete beam, to reduce the shear force of the curtain wall on the reinforced concrete beam and improve the shear strength. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the large curtain wall installation system without pre-embedded keel as described in this utility model;

[0023] Figure 2 This is a schematic diagram showing the connection between the upper end plate and the lower end plate of this utility model;

[0024] Figure 3 This is a schematic diagram showing the fit between the shear-resistant component of this utility model and a reinforced concrete beam;

[0025] Figure 4 This is a top view of the reinforced concrete beam described in this utility model;

[0026] Figure 5 This is a bottom view of the reinforced concrete beam described in this utility model;

[0027] In the diagram: 1. Main keel of curtain wall, 2. Reinforced concrete beam, 3. Reinforced concrete slab, 4. Shear member, 5. Upper end plate, 6. Lower end plate, 7. Screw rod, 8. Nut, 9. Connecting rod. Detailed Implementation

[0028] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0029] In the description of the utility model, it should be understood that the terms "front", "rear", "up", "down", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0030] like Figures 1-5 As shown, large curtain walls are mainly used in high-rise, super high-rise buildings, and large commercial complexes. Traditional curtain wall construction involves pre-embedding the necessary components into the concrete structure of the main building and then installing the curtain wall frame onto these components. However, this method has drawbacks, such as the embedded components hindering the installation of concrete formwork; the embedded components easily shifting during concrete vibration, leading to misalignment between the embedded components and the frame; and the possibility of omissions in the placement of embedded components.

[0031] Therefore, this embodiment discloses a large curtain wall installation system without pre-embedded keel, which mainly includes a reinforced concrete slab 3, a reinforced concrete beam 2, an upper end plate 5, a lower end plate 6, and multiple bolts 7. The reinforced concrete beam 2 and the reinforced concrete slab 3 are cast integrally. The reinforced concrete beam 2 is located at the outer end of the reinforced concrete slab 3, and the bottom surface of the reinforced concrete beam 2 is lower than the bottom surface of the reinforced concrete slab 3, so that the reinforced concrete beam 2 protrudes downward relative to the reinforced concrete slab 3 by a certain distance.

[0032] Based on the installation position of the main curtain wall keel on the reinforced concrete beam 2, upper end plates 5 and lower end plates 6 are installed on the top and bottom surfaces of the reinforced concrete beam 2, respectively. Multiple vertically distributed threaded rods 7 are installed on the outer and inner sides of the reinforced concrete beam 2. The upper and lower ends of the threaded rods 7 located on the outer side of the reinforced concrete beam 2 are connected to the upper end plates 5 and 6, respectively. Vertical through bolt holes with a diameter of 22mm are machined in the reinforced concrete slab 3, located close to the inner side of the reinforced concrete beam 2. The threaded rods 7 located on the inner side of the reinforced concrete beam 2 pass through the bolt holes and connect to the upper end plates 5 and 6, respectively. To improve the firmness of the connection between the threaded rods 7 and the upper and lower end plates 5 and 6, corresponding threaded holes are machined in both the upper and lower end plates 5 and 6 at the connection points with the threaded rods 7. The ends of the threaded rods 7 pass through the threaded holes and are fixedly connected by nuts 8.

[0033] Since the lower end plate is used to connect to the upper end of the main curtain wall keel, a connecting rod 9 is embedded in the bottom of the reinforced concrete beam 2 to ensure its firmness. The lower end of the connecting rod 9 passes through the lower end plate 6 and connects to the lower end plate 6. To improve the shear resistance with the main curtain wall keel, two shear-resistant members 4 are installed on both sides of the lower end plate 6, attached to the inner and outer sides of the reinforced concrete beam 2. The shear-resistant members 4 are 50×50×5mm metal plate-shaped pieces. The bolt holes on the shear-resistant members 4 and the lower end plate 6 are staggered along the length of the reinforced concrete beam 2, and the spacing between the shear-resistant members 4 and the bolt holes is controlled to be 0.5m.

[0034] The installation process of the large curtain wall non-embedded keel installation system described in this embodiment is as follows:

[0035] S01. First, pour reinforced concrete slabs and reinforced concrete beams. Before the concrete of the reinforced concrete beams solidifies, use PVC pipes to pre-drill bolt holes in the reinforced concrete slabs at positions close to the beam edges. Insert connecting rods 9 at the bottom of the reinforced concrete beams 2.

[0036] S02. After the reinforced concrete beam has solidified, install the upper end plate and the lower end plate at the upper and lower ends of the reinforced concrete beam respectively, and then connect the upper end plate and the lower end plate with the bolts on both sides.

[0037] S03. After the upper and lower end plates of the adjacent reinforced concrete beams are installed, when the main curtain wall keel is installed, the main curtain wall keel is located between the two reinforced concrete beams corresponding to the upper and lower floors of the building. The upper end of the main curtain wall keel is connected to the lower end plate located on the upper floor, and the lower end of the main curtain wall keel is connected to the upper end plate located on the lower floor.

[0038] S04. After the main curtain wall keel is installed, proceed with the subsequent curtain wall installation procedures.

[0039] This embodiment replaces the traditional method of embedding the required pre-embedded parts in the concrete of the main structure in curtain wall construction. It overcomes the defects of traditional processes, such as pre-embedded parts hindering the installation of concrete formwork and causing misalignment between pre-embedded parts and keel during concrete vibration. It improves the efficiency, accuracy and quality of large curtain wall construction and reduces construction costs and risks.

Claims

1. A large curtain wall installation system without pre-embedded keel, characterized in that, It includes a reinforced concrete slab (3) and a reinforced concrete beam (2). The reinforced concrete beam (2) is located at the outer end of the reinforced concrete slab (3). The bottom surface of the reinforced concrete beam is lower than the bottom surface of the reinforced concrete slab. The top and bottom surfaces of the reinforced concrete beam (2) are respectively provided with an upper end plate (5) and a lower end plate (6). Multiple vertically distributed screws (7) are provided on the outer and inner sides of the reinforced concrete beam (2). The upper and lower ends of the screws (7) located on the outer side of the reinforced concrete beam (2) are connected to the upper end plate (5) and the lower end plate (6) respectively. The reinforced concrete slab (3) has a vertically penetrating bolt hole located near the inner side of the reinforced concrete beam (2). The screw (7) located inside the reinforced concrete beam (2) passes through the bolt hole and connects the upper end plate (5) and the lower end plate (6) respectively. When the main curtain wall keel (1) is installed, the main curtain wall keel (1) is located between two reinforced concrete beams (2) corresponding to the upper and lower floors of the building. The upper end of the main curtain wall keel (1) is connected to the lower end plate (6) located on the upper floor, and the lower end of the main curtain wall keel (1) is connected to the upper end plate (5) located on the lower floor.

2. The large curtain wall installation system without pre-embedded keel according to claim 1, characterized in that, Both the upper end plate (5) and the lower end plate (6) are provided with screw holes at the connection positions with the screw rod (7). The end of the screw rod (7) passes through the screw hole and is fixedly connected by a nut (8).

3. The large curtain wall installation system without pre-embedded keel according to claim 1, characterized in that, A connecting rod (9) is embedded at the bottom of the reinforced concrete beam (2), and the lower end of the connecting rod (9) passes through the lower end plate (6) and is connected to the lower end plate (6).

4. The large curtain wall installation system without pre-embedded keel as described in claim 3, characterized in that, Two shear members (4) are provided on both sides of the lower end plate (6) and attached to the inner and outer sides of the reinforced concrete beam (2). The shear members (4) and the screw holes on the lower end plate (6) are staggered along the length of the reinforced concrete beam (2).

5. The large curtain wall installation system without pre-embedded keel according to claim 4, characterized in that, The shear-resistant component (4) is a plate-shaped component of 50×50×5mm, and the distance between the shear-resistant component (4) and the screw hole is 0.5m.

6. The large curtain wall installation system without pre-embedded keel according to any one of claims 1-5, characterized in that, The diameter of the bolt hole is 22-26mm.

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