A keel structure and a curtain wall having the keel structure

Abstract

The present invention discloses a keel structure, comprising a plurality of parallel main keels and a plurality of parallel secondary keels, wherein the main keels and the secondary keels are obliquely cross-connected to form a plurality of grids, wherein each main keel is formed by sequentially splicing a plurality of first keels through a first connecting piece, and each secondary keel is formed by intervally connecting a plurality of arms and a plurality of second keels, wherein each arm is fixed on the first keel, and the second keel is located between the two arms and connected to the arms through a second connecting piece, and the first keel, the arms and the second keel are all arc-shaped H-shaped steel pipes. A curtain wall having the above keel structure is also disclosed.

Description

Technical Field

[0001] The invention relates to the building decoration industry, and more particularly to a keel structure and a curtain wall having the keel structure. Background Art

[0002] In recent years, with the rapid development of the construction industry, architectural designs have become increasingly diversified. Architectural curtain walls have been favored for their advantages such as light weight, high strength, high transparency, energy saving and environmental protection. With the development of society and the continuous breakthroughs in science and technology, a large number of special-shaped architectural appearance designs have emerged. Various complex architectural appearances have brought great challenges to the construction and design of curtain walls. For example, the curved facades with different radii, the curtain wall panels are not rectangular or square in the plane, but present special-shaped panels such as diamond and trapezoid, and at the same time there are unconventional large-span keels. In this case, in order to meet the perspective requirements of the special-shaped panels, the supporting keels must be arranged in space according to the shape of the curtain wall panels, and the curved surfaces must be bent according to various bending radii, resulting in difficulties in material processing, design and construction of the keels.

[0003] At present, the curtain wall field prefers to use square steel tubes for steel structure keels. However, the material strength and wall thickness of square steel tubes are weak links. Moreover, for the exterior wall supporting keels, after the installation of square steel tubes, the entire space still belongs to a structure within a plane, and the stability problem can be basically ignored. Therefore, it is unreasonable to use steel tubes. Moreover, many buildings with special shapes and relatively high requirements for surface space dimensions do not have standard extruded tubes, and a lot of welding work or complex processes such as castings are required, which is time-consuming and labor-intensive.

[0004] In view of this, it is necessary to provide a keel structure and a curtain wall having the keel structure that can be installed quickly and accurately, reduce on-site operation time, and be installed stably and not easily deformed, so as to solve the above-mentioned defects. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a keel structure which can be installed quickly and accurately, reduces on-site operation time, and is stably installed and not easily deformed.

[0006] Another technical problem to be solved by the present invention is to provide a curtain wall which can be installed quickly and accurately, reduces on-site operation time, and is installed stably and not easily deformed.

[0007] In order to solve the above technical problems, according to one aspect of the present invention, a keel structure is provided, comprising a plurality of main keels arranged in parallel and a plurality of secondary keels arranged in parallel, wherein the main keels and the secondary keels are obliquely cross-connected to form a plurality of grids, each main keel is formed by a plurality of first keels sequentially spliced ​​together by a first connecting piece, each secondary keel is formed by a plurality of arms and a plurality of second keels connected at intervals, each arm is fixed on the first keel, the second keel is located between the two arms and is connected to the arms through a second connecting piece, and the first keel, the arm and the second keel are all arc-shaped H-shaped steel pipes.

[0008] Its further technical solution is: each of the support arms includes a first connecting arm and a second connecting arm, each of the first connecting arm and the second connecting arm is respectively fixed on both sides of a first keel, and the first connecting arm and the second connecting arm are respectively connected to a second keel through a second connecting piece.

[0009] Its further technical solution is: the first connecting member includes a first connecting plate and a plurality of bolts, the first connecting plate spans the webs of adjacent first keels, the plurality of bolts are arranged on the left and right sides of the first connecting plate, and the bolts are sequentially passed through the first connecting plate and the webs of the first keels to firmly connect the adjacent first keels.

[0010] A further technical solution is as follows: the first connecting member further includes a second connecting plate, and the bolts are sequentially passed through the first connecting plate, the web of the first keel and the second connecting plate.

[0011] A further technical solution is that the opposite ends of the flange plates of two adjacent first keels are welded and connected.

[0012] Its further technical solution is: the second connecting member includes a third connecting plate and a plurality of bolts, the third connecting plate spans the adjacent support arms and the webs of the second keel, the plurality of bolts are arranged on the left and right sides of the third connecting plate, and the bolts are sequentially passed through the third connecting plate and the second keel or the third connecting plate and the webs of the support arms to firmly connect the support arms and the second keel.

[0013] A further technical solution is as follows: the second connecting member further includes a fourth connecting plate, and the bolts are sequentially passed through the third connecting plate, the web of the second keel or the support arm, and the fourth connecting plate.

[0014] A further technical solution is that adjacent supporting arms and opposite ends of the flange plate of the second keel are connected by welding.

[0015] A further technical solution is as follows: the keel structure further includes a frame, a plurality of main keels and secondary keels are located in the frame, and two ends of the main keels and secondary keels abut against the frame.

[0016] In order to solve the above technical problems, according to another aspect of the present invention, a curtain wall is provided, which includes a plurality of glasses and a plurality of the above-mentioned keel structures, wherein the keel structure is installed on the building wall through hangers, and the first keel, the second keel and a flange plate of the support arm are all facing the outside of the building wall, and the glass is embedded in the grid.

[0017] Compared with the prior art, the present invention realizes rapid splicing of the main keel through the first connecting piece, and the support arm is fixed on the first keel, which can be pre-welded and fixed in the factory. During on-site splicing, the second keel can be spliced ​​with the support arm through the second connecting piece, and the indirect connection between the second keel and the first keel can be completed quickly and accurately, thereby forming a grid for glass embedding, thereby maximizing the reduction of welding volume, reducing the difficulty and operation time of on-site installation operations, being efficient and practical, and the first keel, the support arm and the second keel all adopt arc-shaped H-shaped steel pipes, which are stably installed and not easy to deform, and are suitable for special-shaped curtain walls with arcs and large spatial spans. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a specific embodiment of the keel structure of the present invention.

[0019] Figure 2 yes Figure 1 Enlarged view of part A.

[0020] Figure 3 yes Figure 2 A schematic front view of the enlarged portion.

[0021] Figure 4 yes Figure 2 A schematic side view of the enlarged portion.

[0022] Figure 5 yes Figure 1 Magnified view of part B.

[0023] Figure 6 It is a schematic diagram of cutting the web of the first keel in the keel structure of the present invention.

[0024] Figure 7 It is a structural schematic diagram of a specific embodiment of the curtain wall of the present invention. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to more clearly understand the objectives, technical solutions and advantages of the present invention, the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0026] Reference Figure 1 and Figure 5 , Figures 1 to 5A specific embodiment of the keel structure 10 of the present invention is shown. In the embodiment shown in the drawings, the keel structure 10 includes a plurality of parallel main keels 11 and a plurality of parallel secondary keels 12, the main keels 11 and the secondary keels 12 are cross-connected obliquely to form a plurality of grids 14, the main keel 11 is formed by sequentially splicing a plurality of first keels 111 through a first connector 113, the secondary keel 12 is formed by a plurality of arms 112 and a plurality of second keels 121 connected at intervals, each arm 112 is fixed on the first keel 111, the second keel 121 is located between the two arms 112, and is connected to the arms 112 through the second connector 13, and the first keel 111, the arms 112 and the second keel 121 are all arc-shaped H-shaped steel pipes. Based on the above design, the main keel 11 can be quickly spliced ​​through the first connecting piece 113, and the support arm 112 is fixed on the first keel 111, which can be pre-welded and fixed in the factory. During on-site splicing, the second keel 121 can be spliced ​​with the support arm 112 through the second connecting piece 13, and the indirect connection between the second keel 121 and the first keel 111 can be completed quickly and accurately, thereby forming a grid 14 for glass 20 to be embedded, avoiding the low-quality and inefficient design and installation method of large-scale cross welding on site, thereby minimizing the amount of welding, so as to reduce the difficulty and operation time of on-site installation operations, which is efficient and practical. The first keel 111, the support arm 112 and the second keel 121 all adopt arc-shaped H-shaped steel pipes, which are stably installed and not easy to deform, and are suitable for various large-span, straight or curved special-shaped space complex curtain walls.

[0027] Since the curtain wall keel has a larger in-plane stiffness and a smaller out-of-plane stiffness, the keel structure 10 of the present invention is designed to be parallel to the building curved surface along the strong axis direction, that is, the flange of the H-shaped steel pipe is parallel to the building curved surface, and the flange plate needs to be bent. When making the H-shaped steel pipe, mature steel plate bending and cutting technology is adopted. Only a single steel plate needs to be bent and cut. That is, a whole large steel plate is pre-bent in the factory according to the required radius, and then cut according to the flange width requirements to obtain the flange plate. The operation is convenient and the quality is also guaranteed. When the web plate is processed in the factory, refer to Figure 6 Since the web 1112 is bent in the direction of the cross-section height, it is only necessary to determine the cross-section height h of the H-shaped steel pipe, and then cut a whole piece of steel plate according to different bending radius R requirements to cut out the required arc-shaped web shape. There is no need to bend along the thickness direction like the flange. After the flange plate and the web are cut, they can be formed by welding with a full-length fillet weld.

[0028] In some embodiments, each of the support arms 112 includes a first connecting arm 1121 and a second connecting arm 1122, each of the first connecting arm 1121 and the second connecting arm 1122 is respectively fixed to both sides of a first keel 111, and the first connecting arm 1121 and the second connecting arm 1122 are respectively connected to a second keel 121 through a second connecting member 113. Based on the above design, the first connecting arm 1121 and the second connecting arm 1122 in the support arms 112 are fixed to both sides of the first keel 111, and are respectively connected to the second keel 121 through the second connecting member 113, thereby realizing the spaced connection between multiple support arms 112 and multiple second keels 121.

[0029] Continue to refer to Figures 2 to 4 In this embodiment, the first connecting member 113 includes a first connecting plate 1131, a second connecting plate 1133 and a plurality of bolts 1132. The first connecting plate 1131 and the second connecting plate 1133 are respectively arranged on both sides of the web 1112 of the first keel 111, and both bridge the web 1112 of the adjacent first keel 111. The plurality of bolts 1132 are respectively arranged on the left and right sides of the first connecting plate 1131, and the bolts 1132 are sequentially passed through the first connecting plate 1131, the web 1112 of the first keel 111 and the second connecting plate 1133 to firmly connect the adjacent first keels 111. Preferably, the opposite ends of the flange plates 1111 of the two adjacent first keels 111 are welded to further realize the firmly connection of the two adjacent first keels 111. In the present invention, the flange plate 1111 is welded by double-side cutout welding and meets the secondary welding quality requirements, and the web 1112 is connected by high-strength bolts, thereby achieving a stable connection between the two adjacent first keels 111. It can be understood that the number of bolts 1132 in the first connecting member 113 can be set according to the actual engineering requirements to meet the shear bearing capacity requirements of the web in rigid splicing.

[0030] Continue to refer to Figure 5In the embodiment shown in the drawings, the second connecting member 13 includes a third connecting plate 131, a fourth connecting plate 133 and a plurality of bolts 132. The third connecting plate 131 and the fourth connecting plate 133 are respectively arranged on both sides of the first connecting arm 1121 or the second connecting arm 1122 in the support arm 112 and the web 1212 of the second keel 121, and both bridge the adjacent support arms 112 and the web 1212 of the second keel 121. The plurality of bolts 132 are respectively arranged on the left and right sides of the third connecting plate 131, and the bolts 132 The third connecting plate 131, the web of the second keel 121 or the support arm 112, and the fourth connecting plate 133 are sequentially penetrated to firmly connect the support arm 112 and the second keel 121, that is, the bolts 132 on one side are sequentially penetrated through the third connecting plate 131, the web 1212 of the second keel 121, and the fourth connecting plate 133, and the bolts 132 on the other side are sequentially penetrated through the third connecting plate 131, the web 1123 of the first connecting arm 1121 or the second connecting arm 1122 in the support arm 112, and the fourth connecting plate 133. Preferably, the opposite ends of the flange plates of adjacent support arms 112 and the second keel 121 are welded and connected. Based on the above design, the flange plate 1211 of the second keel 121 is welded to the flange plate 1124 of the support arm 112, and the web 1123 of the support arm 112 and the web 1212 of the second keel 121 are connected by high-strength bolts, so as to achieve a stable connection between the support arm 112 and the second keel 121. It can be understood that the number of bolts 132 in the second connecting member 13 can be set according to actual engineering requirements to meet the shear bearing capacity requirements of the web in rigid splicing.

[0031] In some embodiments, the keel structure 10 further includes a frame 15, and the plurality of main keels 11 and secondary keels 12 are located in the frame 15, and both ends of the main keels 11 and secondary keels 12 abut against the frame 15. Based on this design, during on-site installation, both ends of the main keel 11 are supported on the frame 15, and after the main keel 11 in a single direction is installed, the secondary keel 12 in the other cross direction is installed.

[0032] It can be known that the present invention realizes the connection of adjacent first keels 111 through the first connecting member 113, the support arm 112 is fixed on the first keel 111, and can be pre-welded and fixed in the factory, and the connection of adjacent support arms 112 and second keels 121 is realized through the second connecting member 13, and further a stable connection is realized through welding connection, which is convenient and quick to install and can reduce the amount of welding.

[0033] Reference Figure 7 , Figure 7The figure is a structural schematic diagram of a specific embodiment of the curtain wall 100 of the present invention. In the embodiment shown in the figure, the curtain wall 100 includes a plurality of glasses 20 and a plurality of keel structures 10 described in the above embodiments, the keel structure 10 is installed on the building wall through a hanger, and the first keel 111, the second keel 121 and a flange plate of the support arm 112 are all facing the outside of the building wall, and the glass 20 is embedded in the grid 14. Since the out-of-plane stiffness of the keel of the curtain wall 100 is small, the flange plate of the H-shaped steel pipe needs to be parallel to the surface of the building curtain wall 100, that is, the out-of-plane stiffness is met by the strong axis of the H-shaped steel pipe.

[0034] In some embodiments, the glass 20 is a double-layer hollow glass 20, which is filled with inert gas. The outside of the glass 20 is sealed in two ways, the first of which is sealed with butyl rubber, and the second is arranged on the outside of the first, specifically with polysulfide rubber / silicone rubber for sealing, which can effectively ensure the indoor lighting effect. In addition, the hollow glass 20 has the advantages of sound insulation, heat insulation, anti-frost, moisture resistance, and strong wind pressure resistance. In summer, it can block 90% of the solar radiation heat. The sunlight can still pass through the glass curtain wall, but not much sunlight is exposed to the body, so it will not feel hot. In winter, it has a better thermal insulation effect, which can be warm in winter and cool in summer, greatly improving the living environment.

[0035] It can be understood that the curtain wall 100 of the present invention is a glass curtain wall, which is see-through and is mainly designed in a diamond shape. When the H-shaped steel pipe in the keel structure 10 is bent, the web can be cut and formed in a plane by a straight steel plate with an arc, and the flange plate needs to be pre-bent according to the arc of a single steel plate, cut according to the cross-sectional size requirements, and then the flange plate and the web are welded and formed according to the curvature radius, so that the curtain wall 100 using the keel structure 10 has a non-planar facade in the diamond state and presents a curved surface feature. At the same time, an outrigger arm 112 is reserved at the diamond intersection position, that is, the arm 112 is pre-connected on both sides of the first keel 111 to facilitate on-site splicing.

[0036] In the present invention, the support arm 112 in the second keel 121 can be pre-welded to the first keel 111 as required. During on-site installation, the first keels 111 are pre-spliced ​​to form a main keel 11, and the two ends of the main keel 11 are supported on the frame 15. After all the main keels 11 in a single direction are installed, the secondary keel 12 in the other direction of the diamond cross is installed. At this time, it is only necessary to splice the second keel 121 to the support arm 112, that is, the flange plate 1211 of the second keel 121 is welded to the flange plate 1124 of the support arm 112, and the web 1123 of the support arm 112 and the web 1212 of the second keel 121 are connected by the second connecting member 13, so as to meet the rigid connection requirements under large spans, realize the construction of prefabricated green building technology, and make the overall installation speed and installation quality much higher than the conventional on-site box section welding method, which not only saves a lot of manpower and material resources, but also meets the requirements of green and energy-saving prefabricated building technology.

[0037] To sum up, in the present invention, the first connecting piece is used to realize the rapid splicing of the main keel, and the support arm is fixed on the first keel, which can be pre-welded and fixed in the factory. During on-site splicing, the second keel can be spliced ​​with the support arm through the second connecting piece, and the indirect connection between the second keel and the first keel can be completed quickly and accurately, thereby forming a grid for glass embedding, thereby maximizing the reduction of welding volume, reducing the difficulty and operation time of on-site installation operations, being efficient and practical, and the first keel, the support arm and the second keel all adopt arc-shaped H-shaped steel pipes, which are stably installed and not easy to deform, and are suitable for special-shaped curtain walls with arcs and large spatial spans.

[0038] The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Those skilled in the art can make various equivalent changes and improvements based on the above embodiments, and all equivalent changes or modifications made within the scope of the claims should fall within the protection scope of the present invention.

Claims

1. A keel structure, applied to curtain wall, characterized by: The keel structure includes a plurality of parallel main keels and a plurality of parallel secondary keels, wherein the main keels and the secondary keels are obliquely cross-connected to form a plurality of grids, wherein each main keel is formed by sequentially splicing a plurality of first keels through a first connecting piece, and each secondary keel is formed by intervally connecting a plurality of supporting arms and a plurality of second keels, wherein each supporting arm is pre-welded and fixed to the first keel, and the second keel is located between the two supporting arms and connected to the supporting arms through a second connecting piece, and the first keel, the supporting arm and the second keel are all arc-shaped H-shaped steel pipes.

2. The keel structure according to claim 1, characterized in that: Each of the supporting arms includes a first connecting arm and a second connecting arm. Each of the first connecting arm and the second connecting arm is respectively fixed to two sides of a first keel, and the first connecting arm and the second connecting arm are respectively connected to a second keel through a second connecting member.

3. The keel structure according to claim 1, characterized in that: The first connecting member includes a first connecting plate and a plurality of bolts. The first connecting plate spans the webs of adjacent first keels. The plurality of bolts are disposed on the left and right sides of the first connecting plate. The bolts penetrate the first connecting plate and the webs of the first keels in sequence to firmly connect the adjacent first keels.

4. The keel structure according to claim 3, characterized in that: The first connecting member also includes a second connecting plate, and the bolts pass through the first connecting plate, the web of the first keel and the second connecting plate in sequence.

5. The keel structure according to claim 3, characterized in that: The opposite ends of the flange plates of two adjacent first keels are connected by welding.

6. The keel structure according to claim 1, characterized in that: The second connecting member includes a third connecting plate and a plurality of bolts, wherein the third connecting plate spans the adjacent support arms and the webs of the second keel, and the plurality of bolts are disposed on the left and right sides of the third connecting plate, and the bolts are sequentially passed through the third connecting plate and the second keel or the third connecting plate and the webs of the support arms to firmly connect the support arms and the second keel.

7. The keel structure according to claim 6, characterized in that: The second connecting member also includes a fourth connecting plate, and the bolts are sequentially passed through the third connecting plate, the web of the second keel or the support arm, and the fourth connecting plate.

8. The keel structure according to claim 6, characterized in that: Adjacent support arms and opposite ends of the flange plate of the second keel are connected by welding.

9. The keel structure according to claim 1, characterized in that: The keel structure also includes a frame, and a plurality of main keels and secondary keels are located in the frame, and two ends of the main keels and secondary keels abut against the frame.

10. A curtain wall, characterized in that: The curtain wall includes a plurality of glasses and a plurality of keel structures as described in any one of claims 1 to 9, wherein the keel structure is installed on the building wall through hangers, and the first keel, the second keel and a flange plate of the support arm are all facing the outside of the building wall, and the glass is embedded in the grid.

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