Keel assembly, hoisting structure and hoisting method of double fish-belly cable curtain wall

Abstract

The present invention relates to a keel assembly, a hoisting structure and a method of a double fish-belly cable curtain wall, wherein the keel assembly comprises: a main keel erected between a bottom plate and a roof; a balance bar vertically connected to the main keel and arranged on both sides of the main keel, the balance bar being arranged at intervals along the main keel, and the ends of the balance bars on the same side away from the main keel being connected to form an arc; and a cable passing through the ends of the balance bars on the same side away from the main keel, the two ends of the cable being fixedly connected to the top and bottom corresponding to the main keel, the cable being in an arc shape and in a tensioned state. The cable, the balance bar and the main keel of the present invention are connected to form an integral force-bearing unit, which improves the wind resistance and stability of the main keel, so that the cross-sectional size of the main keel can be designed to be smaller, that is, the main keel can have a larger slenderness ratio, which can also meet the stability requirements, while providing better lightness and permeability.

Description

Technical Field

[0001] The invention relates to the field of curtain wall construction engineering, and in particular to a keel component, a hoisting structure and a hoisting method of a double fish-belly cable curtain wall. Background Art

[0002] With the development of the construction industry, large public buildings such as exhibitions, conferences, and stadiums have emerged in recent years, and most of them have become landmark buildings in cities and regions. Therefore, such buildings often pursue grand and artistic design concepts during the design stage, and large space and ultra-high structures have emerged. As the external protection system of the building, the curtain wall is one of the important business cards that show the characteristics of the building, so the curtain wall design often pursues a tall, light, and transparent curtain wall structure system.

[0003] The curtain wall structure includes curtain wall keels fixedly connected to the building structure and curtain wall panels installed on the curtain wall keels. The curtain wall keels provide stable and reliable support for the curtain wall panels. When pursuing a tall, light, and transparent curtain wall structure system, in order to ensure the stability of the tall curtain wall structure, the vertical keels in the curtain wall keels need to provide higher stability. Accordingly, the cross-sectional dimensions of the vertical keels will be designed to be larger. The vertical keels with larger cross-sectional dimensions will affect the requirements of lightness and transparency of the curtain wall structure system; but if the cross-sectional dimensions of the vertical keels are designed to be smaller, in a tall curtain wall structure system, the vertical keels will be difficult to meet the requirements of stability; thus, it is difficult for the vertical keels to have both stability and lightness and transparency. Summary of the invention

[0004] The purpose of the present invention is to overcome the defects of the prior art and provide a keel assembly, a hoisting structure and a hoisting method for a double fish-belly cable curtain wall, so as to solve the problem that the curtain wall keel in the existing curtain wall structure system is difficult to achieve both stability and lightness and permeability.

[0005] The technical solution to achieve the above purpose is:

[0006] The present invention provides a keel assembly of a double fish-belly cable curtain wall, which is installed between a bottom plate and a roof of a building structure. The keel assembly comprises:

[0007] A main keel erected between the base plate and the roof;

[0008] Balance rods vertically connected to the main keel and arranged on both sides of the main keel, the balance rods being arranged at intervals along the main keel, and the ends of the balance rods on the same side away from the main keel being connected to form an arc; and

[0009] A cable is passed through the ends of the balance rods located on the same side away from the main keel, and both ends of the cable are fixedly connected to the top and bottom corresponding to the main keel. The cable is arc-shaped and in a tensioned state.

[0010] The present invention provides a keel assembly in which a balance bar is arranged on both sides of the main keel to increase the lateral rigidity of the main keel. A cable is also arranged at the end of the balance bar, and the cable is in a tensioned state. The cable, the balance bar and the main keel are connected to form an integral force-bearing unit, which improves the wind resistance and stability of the main keel, so that the cross-sectional size of the main keel can be designed to be smaller, that is, the main keel can have a larger slenderness ratio, which can also meet the stability requirements and provide better lightness and permeability. The arranged cable is in a tensioned state, which can offset part of the pressure borne by the main keel and improve the force stability of the main keel. The balance bar is arranged on both sides of the main keel. After the curtain wall panel is installed, the balance bar is located on the inner and outer sides of the curtain wall panel, which will not affect the permeability of the curtain wall structure, thereby ensuring the permeability requirements of the curtain wall structure.

[0011] A further improvement of the keel assembly of the double fish-belly cable curtain wall of the present invention is that the end of the balance bar away from the main keel is fixedly connected to a V-shaped seat, and the V-shaped seat has two mounting ends away from each other;

[0012] There are two cables of each balance rod arranged on the same side, and the two cables are passed through the corresponding mounting ends on the V-shaped seat, and the two cables are arranged in parallel.

[0013] A further improvement of the keel assembly of the double fish-belly cable curtain wall of the present invention is that two balance bars on the main keels located at the corners are arranged perpendicular to each other; and two balance bars on the remaining main keels are arranged opposite to each other.

[0014] The present invention also provides a hoisting structure for a keel assembly of a double-fish-belly cable curtain wall, which is used for hoisting the keel assembly. The hoisting structure comprises:

[0015] a temporary truss structure detachably connected to the main keel, the height of the temporary truss structure being determined according to the slenderness ratio of the main keel; and

[0016] A lifting ring is fixedly arranged on the top of the temporary truss structure.

[0017] The hoisting structure of the present invention solves the deformation problem of the main keel with a relatively large slenderness in the keel assembly during the hoisting process. On the one hand, during hoisting, the cable can form a force-bearing unit with the main keel through tensioning, which can share part of the force of the main keel, thereby reducing the deformation of the main keel. On the other hand, the temporary truss structure is connected to the main keel to form a force-stable truss system, so that the hoisting force acting on the hoisting ring and the gravity of the keel assembly can be evenly distributed on the temporary truss structure and the main keel, thereby improving the lateral stiffness of the main keel, thereby reducing the deformation of the main keel and realizing the overall hoisting of the keel assembly. It avoids the problems of additional erection of operating frames, high labor costs, and difficulty in installing high-altitude cables when the main keel is assembled in pieces.

[0018] A further improvement of the hoisting structure of the keel assembly of the double fish-belly cable curtain wall of the present invention is that the temporary truss structure includes a hanging beam arranged above the main keel, a vertical support fixed to the bottom of the hanging beam, a clamp fixed to the bottom of the vertical support, and a diagonal support connected between the clamp and the hanging beam in an oblique direction;

[0019] The clamp is clamped and connected to the main keel.

[0020] A further improvement in the lifting structure of the keel assembly of the double-belly cable curtain wall of the present invention is that the clamp includes an upper clamp plate and a lower clamp plate arranged on both sides of the main keel and fastening bolts for tensioning and connecting the upper clamp plate and the lower clamp plate, and the fastening bolts are also located on both sides of the main keel; the upper clamp plate of the clamp is fixedly connected to the bottom of the vertical support.

[0021] A further improvement of the hoisting structure of the keel assembly of the double-belly cable curtain wall of the present invention is that the clamp is provided with a fixing plate corresponding to the diagonal brace, and two diagonal braces are provided on one clamp, the two diagonal braces are connected to the fixing plate and are located on both sides of the vertical brace.

[0022] The present invention also provides a method for hoisting a keel assembly of a double-belly cable curtain wall, which is used for hoisting the keel assembly. The hoisting method comprises the following steps:

[0023] Assembling the keel assembly on the ground and pre-tensioning the cable;

[0024] Providing a temporary truss structure, the temporary truss structure is detachably connected to the main keel, and the height of the temporary truss structure is determined according to the slenderness ratio of the main keel;

[0025] Connecting a hoisting device to the temporary truss structure, and hoisting the temporary truss structure and the keel assembly as a whole to an installation location using the hoisting device; and

[0026] After the keel assembly is installed and fixed, the temporary truss structure is removed.

[0027] A further improvement of the hoisting method of the present invention is that when the cable is pre-tensioned, the cable is tensioned to 30% of the designed tension.

[0028] A further improvement of the hoisting method of the present invention is that the step of providing a temporary truss structure comprises:

[0029] Providing a hanging beam and a plurality of vertical supports, and fixing the vertical supports to the bottom of the hanging beam at intervals;

[0030] Providing a clamp, and connecting the clamp to the bottom of the vertical support accordingly;

[0031] A diagonal brace is provided, and the diagonal brace is connected between the clamp and the hanging beam in a diagonal direction, so that the hanging beam, the vertical brace and the diagonal brace are connected to form the temporary truss structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic structural diagram of the keel assembly of the double fish-belly cable curtain wall of the present invention.

[0033] Figure 2 It is a partially enlarged schematic diagram of the keel assembly of the double fish-belly cable curtain wall of the present invention.

[0034] Figure 3 for Figure 2 A schematic diagram of the other side of the structure is shown.

[0035] Figure 4 It is a structural schematic diagram of a V-shaped seat in a keel assembly of a double fish-belly cable curtain wall of the present invention.

[0036] Figure 5 It is a top view of a V-shaped seat in a keel assembly of a double fish-belly cable curtain wall of the present invention.

[0037] Figure 6 It is a schematic structural diagram of the connection between the keel assembly and the roof of the double fish-belly cable curtain wall of the present invention.

[0038] Figure 7 for Figure 6 Schematic diagram of the other side of the structure shown.

[0039] Figure 8 It is a schematic structural diagram of the connection between the keel assembly and the base plate of the double fish-belly cable curtain wall of the present invention.

[0040] Fig. 9 for Figure 8 Schematic diagram of the other side of the structure shown.

[0041] Fig.10It is a schematic structural diagram of the keel assembly of the double fish-belly cable curtain wall arranged at the corner of the present invention.

[0042] Fig.11 It is a structural schematic diagram of the connection between the hoisting structure of the keel assembly of the double fish-belly cable curtain wall of the present invention and the keel assembly.

[0043] Fig.12 It is a partially enlarged schematic diagram of the connection between the hoisting structure of the keel assembly of the double fish-belly cable curtain wall of the present invention and the keel assembly. DETAILED DESCRIPTION

[0044] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0045] See also Figure 1 The present invention provides a keel assembly, a hoisting structure and a hoisting method of a double fish-belly cable curtain wall, wherein the keel assembly of the double fish-belly cable curtain wall is used to meet the design effects of being tall, light and transparent, and is used to reduce the cross-section of the main keel. The cables arranged on both sides offset part of the gravity of the main keel while increasing the lateral stiffness of the main keel, and also improving the wind resistance. The hoisting structure and the hoisting method are used to realize the overall hoisting of the keel assembly, avoiding the problems of high labor costs and difficult installation of high-altitude cables caused by scattered assembly. A temporary truss structure is connected with the main keel to form a truss system with stable force, which realizes the possibility of hoisting the keel assembly as a whole, and the temporary truss structure is used to increase the lateral stiffness of the main keel. After the cables are installed on the ground, they are preliminarily tensioned. The cables on both sides of the main keel are stressed and form an integral force-bearing unit with the main keel, solving the problem of deformation of the keel during the overall hoisting process. The keel assembly, hoisting structure and hoisting method of the double fish-belly cable curtain wall of the present invention are described below in conjunction with the accompanying drawings.

[0046] See also Figure 1 , showing a schematic diagram of the structure of the keel assembly of the double fish belly cable curtain wall of the present invention. Figure 1 , the structure of the keel assembly of the double fish-belly cable curtain wall of the present invention is described.

[0047] like Figure 1As shown, the keel assembly 20 of the double fish belly cable curtain wall of the present invention is installed between the bottom plate 11 and the roof 12 of the building structure. The keel assembly 20 is erected at the edge of the building structure and is used to install the curtain wall so that the installed curtain wall serves as the facade of the building structure. The keel assembly 20 includes a main keel 21, a balance bar 22 and a cable 23. The main keel 21 is erected between the bottom plate 11 and the roof 12. The main keel 21 is vertically arranged. The balance bar 22 is vertically connected to the main keel 21 and arranged on both sides of the main keel 21. The balance bar 22 is arranged at intervals along the main keel 21. The ends of the balance bars 22 on the same side away from the main keel 21 are connected to form an arc, preferably an arc with the middle part convex to the outside. The cable 23 is passed through the ends of each balancing rod 22 on the same side away from the main keel 21. The two ends of the cable 23 are fixedly connected to the corresponding top and bottom of the main keel 21. The cable 23 is arc-shaped and in a tensioned state.

[0048] The main keel 21 of the present invention is provided with a balance bar 22 on both sides to increase the structural strength and lateral rigidity of the main keel, so that the cross-sectional size of the main keel 21 can be designed to be smaller and meet the strength requirements. A cable 23 is passed through the end of the balance bar, and the two ends of the cable 23 are connected to the top and bottom of the main keel. The cable is in a tensioned state and is connected to the main keel and the balance bar to form a whole, thereby improving the wind resistance and stability of the main keel. The cable can also share part of the load on the main keel and improve the acceptance stability of the main keel.

[0049] In a specific embodiment of the present invention, Figure 2 and Figure 3 As shown, the end of the balance bar 22 away from the main keel 21 is fixedly connected to a V-shaped seat 221. Figure 4 and Figure 5 As shown, the V-shaped seat 221 has two mounting ends 2211 that are far away from each other; there are two cables 23 arranged on each balance bar 22 on the same side, and the two cables 23 are passed through the corresponding mounting ends 2211 on the V-shaped seat 221, and the two cables 23 are arranged in parallel.

[0050] Two parallel cables 23 are arranged on both sides of the keel assembly 20. By arranging the two parallel cables 23, the side of the keel assembly 20 has a certain thickness, so that the keel assembly 20 can have higher stability as a whole and improve its wind resistance.

[0051] Preferably, a pair of butt-jointed clamps are provided at the mounting end 2211 of the V-shaped seat 221, and a clamping groove adapted to the cable 23 is provided on the butt-jointed surface of the pair of clamps, and the pair of clamps are butt-jointed and fastened by bolts. The V-shaped seat 221 is welded and fixed to the balance bar 22, and one of the clamps is welded and fixed to the V-shaped seat 221. After the cable is passed through the corresponding clamp, the other clamp is installed by bolts, so that the cable is fixed to the end of the balance bar 22.

[0052] In a specific embodiment of the present invention, when the keel assembly 20 is located at a corner, Fig.10 As shown, the two balancing rods 22 thereon are arranged perpendicularly to each other, and the two balancing rods 22 are both located outside the building structure, and the other two sides of the main keel 21 are connected to the transverse keel 40. The two balancing rods 22 on the remaining keel assemblies 20 are arranged relatively on both sides of the main keel 21, and are located on the inner and outer sides of the building structure.

[0053] When installing the curtain wall on the building structure, first hoist each keel assembly 20 in place, the keel assembly 20 is supported and connected between the bottom plate 11 and the roof 12, and then the transverse keel 40 is supported and connected between the main keels 21 on two adjacent keel assemblies 20, and the transverse keel 40 and the main keel 21 enclose a space for installing the curtain wall, and the curtain wall is attached to the corresponding transverse keel 40 and the main keel 21 and fixedly connected with the transverse keel 40 and the main keel 21, and the installation of the curtain wall is completed. The balance bar 22 and the cable 23 on the main keel 21 are located on the inner and outer sides of the curtain wall. The balance bar 22 and the cable 23 are used to improve the structural strength and stability of the main keel 21, and improve the wind resistance of the main keel 21, which can ensure that the main keel 21 can provide sufficient support for the curtain wall even if it is smaller in size, meeting the design requirements of the curtain wall being tall, light, and transparent.

[0054] In a specific embodiment of the present invention, Figure 2 and Figure 3 As shown, the balance bar 22 is a cross-shaped variable cross-section structure, and the cross-section of the balance bar 22 gradually decreases from one end connected to the main keel 21 to the other end.

[0055] Furthermore, a reinforcing plate 24 is connected to the main keel 21 at a position corresponding to the balancing rod 22. The reinforcing plate 24 is provided to improve the connection strength between the balancing rod 22 and the main keel 21. Preferably, the main keel 21 is an I-beam, having a web and flange plates vertically connected to both sides of the web, an opening is provided on the flange plate corresponding to the balancing rod 22, a portion of the balancing rod 22 passes through the opening and is welded to the web, a reinforcing plate 24 is clamped at the portion of the balancing rod 22 placed on the web, and the reinforcing plate 24 is welded to the balancing rod 22 and the corresponding flange plate.

[0056] In a specific embodiment of the present invention, Figure 6 and Figure 7 As shown, a top plate 211 is provided at the top of the main keel 21, and the top plate 211 is used to connect the cables 23 on both sides of the main keel 21 and the roof 12. Preferably, a lug plate connected to the roof 12 is provided at the top of the top plate 211, and the roof 12 is a steel structure, on which a connecting lug plate 121 is fixedly installed, and the connecting lug plate is hinged with the lug plate at the top of the top plate 211 by bolts, and the bolts are tightened after the main keel 21 is adjusted in place. An ear seat for connecting the cable 23 is provided at the bottom of the top plate 211, and a U-shaped mounting seat is provided at the end of the cable 23, and the mounting seat is clamped on the ear seat and rotatably connected by bolts. After the cable 23 is tensioned, the bolts on the mounting seat are tightened. A bottom end plate 212 is provided at the bottom of the main keel 21, and the bottom end plate 212 is used to connect the cables 23 on both sides of the main keel 21 and the bottom plate 11. The bottom plate 11 is provided with an embedded part 111, and the bottom end plate 212 is placed on the embedded part 111 and fixedly connected to the embedded part 111. A connecting plate for connecting the cable is provided on the top of the top plate 212, and a U-shaped second mounting seat is provided at the end of the cable 23. The second mounting seat is clamped on the connecting plate and rotatably connected to the connecting plate by bolts. After the cable is tensioned, the bolts are tightened.

[0057] The main keel in the above-mentioned keel assembly 20 of the present invention has a smaller design cross-section and a larger length, which is 36.5m long. It adopts II300*100*20*20 steel, and the slenderness ratio reaches 376 in the strong axis direction and 1573 in the weak axis direction. If the main keel is hoisted as a whole, it will inevitably cause the main keel to deform or even break. If the main keel is installed in a loose manner, the subsequent high-altitude installation of the cable is more difficult. For this reason, the present invention provides a hoisting structure 30 for hoisting the keel assembly. The structure of the hoisting structure 30 is described below.

[0058] The hoisting structure of the keel assembly of the double fish belly cable curtain wall of the present invention is used to hoist the keel assembly 20, such as Fig.11 and Fig.12 As shown, the hoisting structure 30 includes a temporary truss structure 31 and a hoisting ring 32. The temporary truss structure 31 is detachably connected to the main keel 21. The height of the temporary truss structure is determined according to the slenderness ratio of the main keel 21. The hoisting ring 32 is fixed on the top of the temporary truss structure 31. The temporary truss structure 31 is connected with the main keel 21 to form a stable truss system. Then, the hoisting ring is connected with a crane to hoist the keel assembly 20 in place as a whole, so as to solve the deformation of the main keel during the overall hoisting process and avoid the difficulty of installing the cable at high altitude.

[0059] The height of the temporary truss structure is determined according to the slenderness ratio of the main keel to reduce the deformation of the main keel and ensure that the main keel is structurally stable and evenly stressed during the hoisting process.

[0060] In a specific embodiment of the present invention, the temporary truss structure 31 includes a suspension beam 311 disposed above the main keel 21, a vertical support 312 fixed to the bottom of the suspension beam 311, a clamp 314 fixed to the bottom of the vertical support 312, and a diagonal support 313 connected between the clamp 313 and the suspension beam 311; the clamp 314 is clamped and connected to the main keel 21. The lifting ring 32 is fixed to the suspension beam 311.

[0061] Specifically, the clamp 314 includes an upper clamp plate 3141 and a lower clamp plate 3142 arranged on both sides of the main keel 21 and a fastening bolt 3143 for tensioning and connecting the upper clamp plate 3141 and the lower clamp plate 3142. The fastening bolts 3143 are also located on both sides of the main keel 21. The upper clamp plate 3141 of the clamp 314 is fixedly connected to the bottom of the vertical support 312.

[0062] Preferably, the suspension beam 311 is made of channel steel, and the vertical support and diagonal support are made of angle steel. When connecting the vertical support and the suspension beam 311, a U-shaped slot is provided at the bottom of the suspension beam 311, and the vertical support 312 is partially inserted into the U-shaped slot and fixedly connected.

[0063] Furthermore, the clamp 314 is provided with a fixing plate 3144 corresponding to the diagonal brace 313 , and the fixing plate 3144 is used to connect the diagonal brace 313 . One clamp 314 is provided with two diagonal braces 313 , and the two diagonal braces 313 are connected to the fixing plate 3144 and are located on both sides of the vertical brace 312 .

[0064] When the hoisting structure 30 is connected to the keel assembly 20 , the temporary truss structure 31 is connected to the top of the main keel 21 , and the balance rods 22 are arranged on both sides of the main keel 21 and are correspondingly located on both sides of the temporary truss structure 31 .

[0065] When hoisting the keel assembly 20, the keel assembly 20 is first assembled on the ground, and the temporary truss structure 31 is connected to the main keel 21, and the cables on the keel assembly 20 are pre-tensioned to 30% of the designed tension, so that the cables on both sides are stressed, the keel assembly forms a force-bearing unit, and the temporary truss structure 31 and the main keel also form a force-stable truss system. The truss system is hoisted as a whole to the installation position using a crane, which solves the deformation problem of the keel during the overall hoisting process and avoids the difficulty of installing the cables at high altitude.

[0066] In traditional steel structure assembly construction, a full-height scaffold is set up for high-altitude in-situ assembly and welding, while the present invention assembles on the ground and then hoists the whole structure, saving a large amount of steel pipe fastener frame rental and frame installation and disassembly construction of the traditional full-height scaffold, saving the purchase of full-height frame facade safety nets and equipment costs, saving construction period losses caused by setting up full-height scaffolds, and saving construction period delay losses caused by in-situ assembly of scattered parts.

[0067] The present invention also provides a method for hoisting a keel assembly of a double fish-belly cable curtain wall, and the hoisting method is described below.

[0068] The hoisting method of the keel assembly of the double fish-belly cable curtain wall of the present invention is used to hoist the keel assembly, and the hoisting method comprises the following steps:

[0069] like Figures 1 to 3 As shown, the keel assembly 20 is assembled on the ground, and the cable 23 is pre-tensioned;

[0070] Combination Fig.11 and Fig.12 As shown, a temporary truss structure 31 is provided, and the temporary truss structure 31 is detachably connected to the main keel 21, and the height of the temporary truss structure 31 is determined according to the slenderness ratio of the main keel 21;

[0071] Connecting the hoisting equipment to the temporary truss structure 31, and hoisting the temporary truss structure 31 and the keel assembly 20 as a whole to the installation location using the hoisting equipment; and

[0072] After the keel assembly 20 is installed and fixed, the temporary truss structure 31 is removed.

[0073] The present invention solves the deformation problem of the main keel with a relatively large slenderness in the keel assembly during the hoisting process. On the one hand, during hoisting, the cable can form a force-bearing unit with the main keel through tensioning, which can share part of the force of the main keel, thereby reducing the deformation of the main keel. On the other hand, the temporary truss structure is connected to the main keel to form a force-stable truss system, so that the hoisting force acting on the hoisting ring and the gravity of the keel assembly can be evenly distributed on the temporary truss structure and the main keel, thereby improving the lateral stiffness of the main keel, thereby reducing the deformation of the main keel and realizing the overall hoisting of the keel assembly. It avoids the problems of additional erection of operating frames, high labor costs, and difficulty in installing high-altitude cables when the main keel is assembled in pieces.

[0074] Furthermore, when the cables are pre-tensioned, the cables are tensioned to 30% of the designed tension.

[0075] In a specific embodiment of the present invention, the step of providing a temporary truss structure includes:

[0076] Provide a hanging beam 311 and a plurality of vertical supports 312, and fix the vertical supports 312 to the bottom of the hanging beam 311 at intervals;

[0077] Provide a clamp 314, and connect the clamp 314 to the bottom of the vertical support 312 accordingly;

[0078] A diagonal brace 313 is provided, and the diagonal brace 313 is connected between the clamp 314 and the hanging beam 311 in a diagonal supporting manner, so that the hanging beam 311 , the vertical brace 312 and the diagonal brace 313 are connected to form a temporary truss structure 31 .

[0079] Furthermore, the method further includes: clamping and connecting the clamp 314 to the main keel. Specifically, the clamp 314 includes an upper clamping plate 3141 and a lower clamping plate 3142 disposed on both sides of the main keel 21, and fastening bolts 3143 for tensioning and connecting the upper clamping plate 3141 and the lower clamping plate 3142. The fastening bolts 3143 are also located on both sides of the main keel 21. The upper clamping plate 3141 of the clamp 314 is fixedly connected to the bottom of the vertical support 312.

[0080] The present invention is described in detail above in conjunction with the embodiments of the accompanying drawings. A person skilled in the art can make various variations of the present invention according to the above description. Therefore, certain details in the embodiments should not constitute a limitation of the present invention, and the scope of protection of the present invention shall be defined by the scope of the attached claims.

Claims

1. A keel assembly of a double fish-belly cable curtain wall, installed between the bottom plate and the roof of the building structure, It is characterized in that The keel assembly comprises: A main keel erected between the base plate and the roof; Balance rods vertically connected to the main keel and arranged on both sides of the main keel, the balance rods being arranged at intervals along the main keel, and the ends of the balance rods on the same side away from the main keel being connected to form an arc; and A cable passing through the ends of each of the balancing rods located on the same side away from the main keel, wherein both ends of the cable are fixedly connected to the corresponding top and bottom of the main keel, and the cable is arc-shaped and in a tensioned state; The end of the balance bar away from the main keel is fixedly connected with a V-shaped seat, and the V-shaped seat has two mounting ends away from each other; There are two cables of each of the balance bars arranged on the same side, and the two cables are passed through the corresponding mounting ends on the V-shaped seat, and the two cables are arranged in parallel; The balance bar is a cross-shaped variable-section structure, and the cross-section of the balance bar gradually decreases from one end connected to the main keel to the other end; A reinforcement plate is connected to the main keel at a position corresponding to the balance bar; When installing the curtain wall on the building structure, the main keels of two adjacent keel assemblies support and connect the transverse keels, and the transverse keels and the main keels enclose a space for installing the curtain wall. The balance rods and cables on the main keels are located on the inner and outer sides of the curtain wall.

2. The keel assembly of the double fish-belly cable curtain wall according to claim 1, It is characterized in that The two balancing rods on the main keels at the corners are arranged perpendicularly to each other; the two balancing rods on the remaining main keels are arranged opposite to each other.

3. A hoisting structure for a keel assembly of a double-belly cable curtain wall according to any one of claims 1 to 2, used for hoisting the keel assembly, It is characterized in that The hoisting structure comprises: a temporary truss structure detachably connected to the main keel, the height of the temporary truss structure being determined according to the slenderness ratio of the main keel; and A lifting ring fixedly mounted on the top of the temporary truss structure; The temporary truss structure includes a hanging beam arranged above the main keel, a vertical support fixed to the bottom of the hanging beam, a clamp fixed to the bottom of the vertical support, and a diagonal support connected between the clamp and the hanging beam; The clamp is clamped and connected to the main keel; The clamp comprises an upper clamping plate and a lower clamping plate arranged on both sides of the main keel and fastening bolts for tensioning and connecting the upper clamping plate and the lower clamping plate, and the fastening bolts are also located on both sides of the main keel; the upper clamping plate of the clamp is fixedly connected to the bottom of the vertical support; The clamp is provided with a fixing plate corresponding to the diagonal brace, and one clamp is provided with two diagonal braces, which are connected to the fixing plate and are located on both sides of the vertical brace.

4. A method for hoisting a keel assembly of a double-belly cable curtain wall according to any one of claims 1 to 2, used for hoisting the keel assembly, It is characterized in that The hoisting method comprises the following steps: Assembling the keel assembly on the ground and pre-tensioning the cable; Providing a temporary truss structure, the temporary truss structure is detachably connected to the main keel, and the height of the temporary truss structure is determined according to the slenderness ratio of the main keel; Connecting a hoisting device to the temporary truss structure, and using the hoisting device to hoist the temporary truss structure and the keel assembly as a whole to an installation location; as well as After the keel assembly is installed and fixed, the temporary truss structure is dismantled; When the cable is pre-tensioned, the cable is tensioned to 30% of the designed tension; The steps of providing a temporary truss structure include: Providing a hanging beam and a plurality of vertical supports, and fixing the vertical supports to the bottom of the hanging beam at intervals; Providing a clamp, and connecting the clamp to the bottom of the vertical support accordingly; A diagonal brace is provided, and the diagonal brace is connected between the clamp and the hanging beam in a diagonal direction, so that the hanging beam, the vertical brace and the diagonal brace are connected to form the temporary truss structure.

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