CN100510289C - Unitized curtain wall structure and installation method thereof - Google Patents

Abstract

A unitized curtain wall structure and its installation method. The upper horizontal frame and vertical frame with plug-in fins in the unit plate are a split structure, and the upper horizontal frame and vertical frame of the split structure are respectively composed of a main frame and an auxiliary plug-in frame. Composition, the main frame of the upper horizontal frame and the auxiliary plug-in frame are connected by fasteners and then plugged with the lower horizontal frame of the upper unit plate, and the main frame of the vertical frame and the auxiliary plug-in frame are connected by fasteners It is plugged with the mullion of the horizontally adjacent unit plate. The advantages of the present invention are: since the auxiliary plug-in frame and the main frame are separate structures, the plug-in position of the unit plate can be determined according to the three-dimensional space lofting, and by adjusting the position and angle of the auxiliary plug-in frame relative to the main frame during assembly, the auxiliary plug-in frame The connection between the connecting frame and the main frame can be combined at any position according to the requirements, so as to meet the various space modeling requirements of the building and the realization of functions such as curtain wall sealing and drainage.

Description

A unitized curtain wall structure and its installation method

technical field

The invention relates to a building external protection structure, that is, a unitized curtain wall structure, which is especially suitable for a super high-rise building with a hyperboloid building shape and strict requirements on the thermal insulation performance of the curtain wall.

Background technique

Since the processing and assembly of the unit panels are carried out in the factory, the unitized curtain wall can effectively control the processing accuracy of the parts and the assembly quality of the panels, and because the unit panels adopt a plug-in structure, the positioning accuracy is high and the surface of the curtain wall is high. Moreover, the on-site installation and operation are simple and easy, and it can be constructed at the same time as the civil structure and cross-operated. The unitized curtain wall is widely used in the curtain wall structure of modern high-rise buildings because of its high manufacturing precision, quick installation and short construction period. However, with the emergence of various curved surface shapes of buildings, various hyperboloid space shape buildings have emerged. For a hyperboloid shape with a certain curvature, the ordinary unitized curtain wall cannot fit the curved shape and realize the function of sealing and drainage. The hyperbolic bending method of the unit plate is adopted, and the manufacturing process of glass and profiles is complicated and the cost is high. And in many cases it is only theoretically feasible.

Contents of the invention

The purpose of this invention is to provide a new type unit curtain wall structure, which can realize the perfect shape of the unit curtain wall in the hyperboloid three-dimensional space, and can also realize the complete sealing and drainage of the hyperboloid unit curtain wall structure, and through the new type of heat insulation strip The structure is completed with thermal insulation of aluminum profiles.

The object of the present invention is achieved like this: it includes the upper horizontal frame of the unit plate, the lower horizontal frame and two vertical frames and the sealing device and the drainage device installed therebetween, and the upper horizontal frame and one of the vertical frames have plug-in fins , which is characterized in that the upper horizontal frame and the mullion with the splicing wings are a split structure, the upper horizontal frame and the vertical frame of the split structure are respectively composed of a main frame and an auxiliary splicing frame, and the main frame and the auxiliary frame of the upper horizontal frame The plug-in frames are connected with fasteners and plugged with the lower horizontal frame of the upper unit plate, and the main frame of the mullion and the auxiliary plug-in frame are connected with fasteners and then plugged with the vertical frame of the horizontally adjacent unit plate. catch.

The advantages of the present invention are: since the auxiliary plug-in frame and the main frame are separate structures, the plug-in position of the unit plate can be determined according to the three-dimensional space lofting, and by adjusting the position and angle of the auxiliary plug-in frame relative to the main frame during assembly, the auxiliary plug-in frame The connection between the connecting frame and the main frame can be combined at any position according to the requirements, so as to meet the various space modeling requirements of the building and the realization of functions such as curtain wall sealing and drainage.

Description of drawings

Fig. 1 is a division diagram of the unit curtain wall of the present invention.

Fig. 2 is a sectional view of A-A in Fig. 1 .

Fig. 3 is a B-B sectional view in Fig. 1 .

Fig. 4 is a C-C sectional view in Fig. 1 .

Fig. 5 is a schematic diagram of drainage of the sealing structure of the present invention.

Fig. 6 is a schematic diagram of the model of the building hyperboloid space modeling of the present invention.

Detailed ways

Figure 2 and Figure 4 are the node diagrams of the unit plate mullions. Since the present invention relates to a hyperboloid space-shaped unit curtain wall manufactured by using planar unit plates, misalignment will occur between adjacent planar unit plates. What Fig. 2 shows is the sectional view of the dislocation in the horizontal direction (that is, the transverse direction) of two adjacent unit plates at the upper transverse frame. Fig. 4 is a cross-sectional view in the horizontal direction of the non-displaced position of the lower transverse frame of the unit plate.

The right side of the figure is a mullion with plug-in wings, which is a split structure. In the figure, 1 is the main frame of the mullion of the right unit plate, and 2 is the auxiliary plug-in frame of the mullion. The main frame 1 of the mullion is fixedly connected with the plug-in frame 2 attached to the mullion with screws 3 to form a mullion of the right unit plate. 4 is the vertical frame of the left unit plate among the figure. Since the building is shaped as a curved space, there are dislocations of different distances between the unit plates on each horizontal section. The invention adopts the split mullion, which can meet the dislocation requirements of the unit plate on the horizontal section. First, the required misalignment distance H is obtained through three-dimensional space lofting, that is, the positional relationship between the mullion attachment frame 2 and the mullion main frame 1, and the mullion attachment attachment frame 2 and the mullion main frame 1 are fixed by screws 3 After the connection, the mullion 4 of the adjacent plate is accurately plugged in, and the installation of the unit plate in the horizontal position is completed.

Fig. 3 shows a cross-sectional view of the inserting parts between the horizontal frames of the unit plates. 11 among the figure is the lower horizontal frame of the upper unit plate, which is plugged with the upper horizontal frame of the lower unit plate. As shown in the figure, the upper horizontal frame of the lower unit plate is a split structure with plug-in wings. Among the figures, 15 is the main frame of the upper horizontal frame, and 14 is the auxiliary plug-in frame of the upper horizontal frame. In order to meet the dislocation requirements of different distances between plates on different vertical sections, the required dislocation distance is firstly obtained through three-dimensional space lofting, and after the positions of the auxiliary plug-in frame 14 of the upper horizontal frame and the main frame 15 of the upper horizontal frame are determined, screw 3 fixed connections. Then the lower horizontal frame 11 of the upper unit plate is plugged in with the upper horizontal frame subsidiary socket frame 14 of the lower unit plate, so that the dislocation of different distances of the hyperboloid curtain wall on the vertical section can be satisfied.

Sealing and drainage structure of the present invention are realized like this:

It can be seen from Fig. 2 and Fig. 4 that sealing strips 5 and 6 are installed at the parts where the mullion's auxiliary plug-in frame 2 and mullion 4 are plugged in, and closed air foam cotton 8 is installed in the plug-in groove to further ensure the curtain wall airtight performance. In addition, a butt-type sealing strip 7 is installed at the gap between the two unit plates.

The sealing and drainage structure of the horizontal frame of the present invention is shown in Figure 3. Sealing strips 16, 10 are installed at the joints of the upper horizontal frame subsidiary plug-in frame 14 and the lower horizontal frame 11, and a Closed bubble cotton8. It can be seen from the figure that the sealing rubber strip 10 is a continuous water-coating rubber strip, which can realize layered drainage of the curtain wall. At the same time, multiple water-retaining sealant strips 26 are installed in the gap between the two unit plates, and the multiple water-retaining sealant strips 26 are located on the continuous water-drapping sealant strip 10, equal to the width of the plate. The multiple water-retaining sealing strips 26 are provided with three layers of water-retaining fins, and drain holes 17 are intermittently opened on the water retaining fins (Fig. 5), and at the same time, drain holes 18 are also provided on the front end of the auxiliary plug-in frame 14 of the upper horizontal frame. . The combination of the continuous draped water sealing strip 10 and the multiple water retaining sealing strips 26 can realize layered drainage of the unit curtain wall.

The continuous water sealing strip 10, the multiple water sealing strip 26 and the sealing strip 16 form space III and space IV through the insertion of the upper and lower horizontal frames, and the continuous water sealing strip 10 and multiple water sealing strips The seal of 26 has blocked most of the rainwater, but due to the wind pressure, a small part of rainwater enters into the space III through the space I in Fig. It is both a pressure balance hole and a drainage port. The function of the pressure balance hole is to form an equal pressure between the space III and the outside world, reducing the penetration of rainwater. The function of the drain is to discharge the rainwater entering the space III through the drain holes 17 of the multiple water-retaining sealing strips 26 . In the case of strong wind, rainwater may seep into space IV, and a small amount of rainwater here can flow into space III of the lower unit through the drainage hole 18 on the auxiliary plug frame 14 of the upper horizontal frame, and pass through multiple water-retaining sealing strips 26 drain hole 17 to discharge.

As shown in Fig. 3, a horizontal sliding ferrule 13 and a limit ferrule 12 are installed on the side of the upper horizontal frame subsidiary socket frame 14, wherein the horizontal sliding ferrule 13 and the upper horizontal frame subsidiary socket frame 14 Screws are used to fix the connection between them, and the horizontal sliding ferrule 13 is plugged in with the auxiliary socket frame 14 of the upper horizontal frame of the horizontally adjacent unit plate at the same time. The limit ferrule 12 and the horizontal sliding ferrule 13 are fixedly connected with screws, and are inserted into the mullion cavity of the upper adjacent unit plate. In this embodiment, the upper horizontal frame subsidiary plug-in frame 14 , the horizontal sliding ferrule 13 and the limit ferrule 12 are fixedly connected by the same screw 27 .

The present invention adopts the position-adjustable horizontal sliding ferrule 13 and the limit ferrule 12 that prevents the center of gravity of the irregular plate from shifting. The horizontal sliding ferrule 13 connects the left and right upper and lower unit plates to play the role of positioning and guiding, draining and sealing. The horizontal sliding ferrule 13 seals the plugging intersections of the left, right, upper, lower, and upper plates, and the rainwater flowing down from the upper plate is passed through the horizontal sliding ferrule 13 and discharged through the drainage hole 18 of the auxiliary socket frame 14 of the upper horizontal frame. The base of the limit ferrule 12 is connected and fixed with the horizontal sliding ferrule 13, and the top is inserted into the cavity of the mullion main frame of the upper unit plate to complete the limit of the trapezoidal unit plate in the plane.

The insertion seam of the curtain wall transverse unit shown in Fig. 2 and Fig. 4 is composed of three sealing strips 7, 6, 5 for sealing. The sealing of the butt joint rubber strip 7 has blocked most of the rainwater, but due to the wind pressure, a small part of the rainwater enters the space I, and the space I and the space III in Figure 3 are connected. The hole 17 makes the air pressure of the space I the same as that of the outside world, which reduces rainwater penetration, and the rainwater entering the space I flows into the lower space III due to its own weight and is discharged through the drainage holes 17 of the multiple water-retaining sealing strips 26. The mullions are plugged together to form a space II through the sealing of the rubber strip 6 and the rubber strip 5. The space II and the space IV are connected. The rainwater entering the space II flows into the space IV and is discharged through layered drainage.

Due to the hyperboloid shape of the building, the mullion of the curtain wall may fall to the indoor side, so that the water in the space II will flow to the room along the inner wall of the profile, and the mullion 4 and the mullion’s auxiliary plug-in frame 2 A water-guiding structure is set in the connection cavity (that is, a water-retaining rubber strip 28 is set on the mullion 4, and a water-guiding groove 29 is set on the auxiliary frame 2 of the mullion), which can effectively prevent the water in the space II from flowing indoors, and Import it into Space IV.

The drainage principle of the entire structure can be more clearly understood through Figure 5. The rainwater 19 that enters into the splicing chamber of the rubber strip 7 due to wind pressure falls on the upper surface of the continuous water sealing rubber strip 10 due to dead weight, and can be directly discharged. The rainwater 20 entering the space I falls into the space III due to its own weight, and is discharged through the drainage holes 17 on the multiple water-retaining sealing strips 26 together with the rainwater 21 directly entering the space III. A small amount of rainwater 22 entering the space II falls into the space IV, and flows into the space I of the lower unit through the drain hole 18 at the front end of the upper horizontal frame attached to the plug frame 14 . In this way, the whole system is tight and reliable, ensuring the watertight performance of the curtain wall.

The sealing strip 10 is a continuous water retaining structure design, which can realize layered drainage of the super high-rise unit curtain wall, and can adapt to the deformation requirements of the main structure under various conditions.

The upper and lower horizontal frames and vertically of the unitized curtain wall are provided with insulation strips 9 . The heat insulating strip 9 is a split structure. It is composed of two different heat insulation strips, one of which has two strip slots, which can be installed with multi-layer sealant strips; A cavity can improve the thermal insulation performance of the thermal insulation profile. The advantage of the heat insulation strip is that it not only has reliable structural strength, but also simplifies the process of manufacturing and processing.

As can be seen in Figure 6, the method adopted by the present invention in the installation of vertical unit panels is to ensure that the combination 23 of the lower horizontal frame of all unit panels and the upper horizontal frame of the lower unit is fitted with the profile curve of the building , that is, the two endpoints 24 of the combination 23 are all kept on the contour curve of the building. Since the shape of the plate is a multi-sided (greater than three sides) special-shaped plane, the main frame 15 of the horizontal frame on the installed unit plate will not be in the building. curves of the building's shape. So when the unit plate is installed, the present invention requires that the midpoint 25 of the upper horizontal frame main body frame 15 of the plate is on the profile curve of the building, so that the upper horizontal frame main frame 15 of the plate is just with the midpoint 25 as the axis and the center of the building. The profile curve has a certain angular deviation. When the lower horizontal frame 11 of the upper unit plate is plugged with the upper horizontal frame of the lower unit plate, to ensure that the installation position of the combination 23 is on the contour curve of the building, the main frame 15 of the upper horizontal frame needs to be connected with the auxiliary frame of the upper horizontal frame. The position of frame 14 is adjusted to compensate for the offset angle from the contour curve of the building. Through three-dimensional space lofting, the positional relationship between the auxiliary plug-in frame 14 of the upper horizontal frame and the main frame 15 of the upper horizontal frame can be obtained, and they are connected and fixed with screws, so that they can be accurately inserted into the lower horizontal frame 11 of the connecting plate, and the unit plate is completed in the longitudinal direction. location of the installation.

Claims (8)

1. A unitized curtain wall structure, which includes the upper horizontal frame, the lower horizontal frame and two mullions of the unit plate and the sealing device and drainage device installed therebetween. The upper horizontal frame and one of the mullions have insertion fins , which is characterized in that the upper horizontal frame and the mullion with the splicing wings are a split structure, the upper horizontal frame and the vertical frame of the split structure are respectively composed of a main frame and an auxiliary splicing frame, and the main frame and the auxiliary frame of the upper horizontal frame The plug-in frames are connected with fasteners and plugged with the lower horizontal frame of the upper unit plate, and the main frame of the mullion and the auxiliary plug-in frame are connected with fasteners and then plugged with the vertical frame of the horizontally adjacent unit plate. catch. 2. The unitized curtain wall structure according to claim 1, characterized in that a horizontal sliding ferrule is fixed and installed on the inner side of the auxiliary plug-in frame of the upper horizontal frame with fasteners, and the horizontal sliding ferrule is simultaneously connected with the horizontal The upper horizontal frame of the adjacent plate is plugged with the auxiliary plug-in frame, and the horizontal sliding ferrule is fixedly connected with the limit ferrule, and the limit ferrule is simultaneously plugged with the vertical frame cavity of the adjacent unit plate above. 3. The unitized curtain wall structure according to claim 1, characterized in that a sealant strip is provided at the part where the upper and lower horizontal frames are inserted, and the sealant strip is a water-splashed plate-type sealant strip, and the water-sprayed plate-type sealant strip is continuous structure. 4. The unit curtain wall structure according to claim 3, characterized in that the sealant strips in the gap between the upper and lower horizontal frames are multiple water-retaining sealant strips, which are located on the top of the water-draping plate-type sealant strips, and the multiple water-retaining sealants The bar is provided with at least two water retaining fins, which are the same width as each plate. 5. The unitized curtain wall structure according to claim 1, characterized in that heat insulation strips are installed on the upper and lower horizontal frames and vertical frames, and the heat insulation strips are composed of two different heat insulation strips, one of which is at least With one strip notch and the other with air spacer ribs. 6. The unitized curtain wall structure according to claim 1, characterized in that the plug-in grooves of the mullions and the upper and lower horizontal frames are filled with closed air foam. 7. The unitized curtain wall structure according to claim 1, characterized in that a water-conducting structure is provided in the cavity formed by the mullions, and the water-guiding structure includes a water-retaining rubber strip installed on the inner wall of the mullion on one side , and the water guide groove set on the inner wall of the mullion on the other side. 8. An installation method for a unitized curtain wall structure, which is characterized in that the combination (23) of the lower horizontal frame (11) of all unit plates and the auxiliary plug-in frame (14) of the upper horizontal frame of the lower unit and the building Outline curve fitting, that is, the two endpoints (24) of the combination (23) remain on the outline curve of the building, and the horizontal frame main frame (15) on the unit plate after installation will not be on the outline curve of the building When the unit plate is installed, the midpoint (25) of the main frame (15) of the upper horizontal frame is on the profile curve of the building, and the main frame (15) of the upper horizontal frame (15) is just centered on the center point (25) of the building The shape curve of the building has a certain angle deviation; when the lower horizontal frame (11) of the upper unit plate is plugged into the upper horizontal frame of the lower unit plate, it must be ensured that the installation position of the combination (23) is on the shape curve of the building. The position adjustment of the main frame (15) of the horizontal frame and the auxiliary plug-in frame (14) of the upper horizontal frame is adjusted to compensate for the offset angle with the outline curve of the building; the auxiliary plug-in frame (14) and The positional relationship of the main body frame (15) of the upper horizontal frame is accurately plugged with the lower horizontal frame (11) of the upper plate after being fixed with screws to complete the unit assembly.

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