A tall curved facade curtain wall support system

Abstract

The present application relates to a tall curved facade curtain wall support system, which belongs to the field of cable net curtain wall technology, and solves the problems of poor overall permeability and high cost of the cable net curtain wall in the prior art. The tall curved facade curtain wall support system includes a bow-shaped structure, hoop beams and slings. The bow-shaped structure is arranged vertically at intervals. The bow-shaped structure has vertically arranged string columns, struts and steel cables connected to both ends of the string columns and connected in series to form an arc-shaped arrangement. Multiple string columns are located on the same arc surface; the hoop beam is an arc structure, which is vertically connected to the string column, and the hoop beam is arranged horizontally in accordance with the curved facade of the curtain wall; the sling connects multiple hoop beams in the longitudinal direction, and is configured to hang the hoop beams to reduce the vertical span of the hoop beams. The present application improves the overall permeability of the cable net curtain wall and reduces the construction cost.

Description

Technical Field

[0001] The present application belongs to the technical field of cable net curtain walls, and specifically relates to a high and large curved facade curtain wall support system. Background Art

[0002] Tall facade curtain walls are widely used in modern buildings, mostly in large public buildings such as airport terminals, railway stations, exhibition buildings, and high-end hotels. The support structure of tall facade curtain walls has a large span, and the traditional frame curtain wall support system is clumsy, making it difficult to achieve a delicate, beautiful, and transparent visual effect. The single-layer cable net system is simple and transparent, but the single-layer plane cable net structure relies on cable force to establish out-of-plane stiffness. The huge pre-tension causes the cross-section of the supporting structure components around the cable net to be too large, or even impossible to achieve.

[0003] There is a vertical self-balancing hyperbolic cable net curtain wall support system in the prior art, which includes curtain wall columns, pressure cables, windproof cables, stabilizing cables and struts, wherein the two ends of the pressure cables are respectively hinged to the two ends of the curtain wall columns, and form a minor arc bow structure with the curtain wall columns; a plurality of struts are connected between the windproof cables and the pressure cables in a hinged manner, and the struts and the minor arc bow structure are located in the same vertical plane; the windproof cables are arranged horizontally and connect a plurality of minor arc bow structures; the vertical system can achieve self-balancing, and can avoid the problem of excessive load burden on the supporting structure around the cable net of the traditional cable net system.

[0004] However, the vertical self-balancing hyperbolic cable net curtain wall support system in the prior art is fitted with horizontal steel cables in the curved facade of the curtain wall. The steel cables do not have bending rigidity and can only exist in a straight line between the curtain wall columns. In order to reduce the size of the windproof cable invading the indoor space, a curtain wall column needs to be set at a relatively short distance. If the distance between two adjacent curtain wall columns is too small, it will lead to more rods in the indoor space, affecting the overall transparency of the facade curtain wall. In addition, the glass of the vertical self-balancing hyperbolic cable net curtain wall support system is laterally supported between the curtain wall columns. The glass width is large, and the arc fitting effect of "straight instead of curved" is poor. Most of the expensive curved glass is used, resulting in high cost. In addition, since the root of the support rod adopts a hinged connection method, in order to prevent the support rod from rotating outside the vertical plane, multiple windproof cables need to be set, which also has a certain impact on the indoor transparency effect.

[0005] Based on the above analysis, the hyperbolic cable net curtain wall support system in the prior art has the problems of poor overall permeability of the facade curtain wall and high cost. Summary of the invention

[0006] In view of the above analysis, the embodiment of the present invention aims to provide a tall curved facade curtain wall support system to solve the problems of poor overall permeability and high cost of the cable net curtain wall in the prior art.

[0007] The object of the present invention is achieved in that:

[0008] A tall curved facade curtain wall support system, comprising:

[0009] A bow-shaped structure, wherein the bow-shaped structure is arranged vertically at intervals, and comprises a vertically arranged bow-shaped column, a bow-shaped support rod, and a steel cable connected to both ends of the bow-shaped column and connecting the ends of the bow-shaped support rod in series to form an arc shape, wherein a plurality of the bow-shaped columns are located on the same arc surface;

[0010] A hoop beam, which is an arc-shaped structure and vertically connected to the string column, and the hoop beam is arranged horizontally in accordance with the arc-shaped facade of the curtain wall;

[0011] The slings are connected to the plurality of hoop beams in a longitudinal direction and are configured to suspend the hoop beams to reduce a vertical span of the hoop beams.

[0012] Furthermore, the slings are arranged in a plurality of rows between the string columns, and the slings are arranged vertically and parallel to the string columns.

[0013] Furthermore, the bow-string structure is arranged at intervals of 12m to 20m, the rise of the steel cable is controlled at 1 / 8 to 1 / 12 of the curtain wall height, the hoop beam is arranged at intervals of 6 to 12m in the longitudinal direction; and the suspension cable is arranged at intervals of 3 to 4m.

[0014] Furthermore, a plurality of glass panels are installed on the hoop beam.

[0015] Furthermore, the glass panel is flat glass, and the lateral width of the glass panel is 1.5-2 m.

[0016] Furthermore, the hoop beam is rigid and is a steel structure.

[0017] Furthermore, the hoop beam is an arc-shaped plate structure.

[0018] Furthermore, the hoop beam includes connecting sections and mid-span sections arranged at intervals; wherein, the connection between the hoop beam and the tension column is the connecting section, and the portion located between two adjacent connecting sections is the mid-span section; the width of the connecting section is greater than the width of the mid-span section, and the connecting section and the mid-span section are connected by a circular arc smooth transition.

[0019] Furthermore, the string-tensioning brace rod comprises a rod root and a rod end, the rod root of the string-tensioning brace rod is fixedly connected to the string-tensioning column, and the rod end is connected to the steel cable.

[0020] Furthermore, the plurality of string support rods are arranged horizontally and parallel to each other, and the string columns, steel cables and string support rods of each string bow-shaped structure are located in a vertical plane.

[0021] Furthermore, the string-tensioning strut is a flat plate structure, and the width decreases evenly from the root of the rod to the end of the rod.

[0022] Compared with the prior art, the tall curved facade curtain wall support system provided by the present invention has at least one of the following beneficial effects:

[0023] 1. This structural system uses wide and flat arc hoop beams as components to withstand wind suction. The hoop beams have a certain degree of bending rigidity and can fit the shape of the arc curtain wall completely. Therefore, the string columns can be arranged at a larger spacing. Compared with the existing technology, the number of string columns can be reduced to less than 1 / 3, saving construction costs while achieving a more transparent indoor curtain wall effect.

[0024] 2. The spacing between hoop beams is controlled within the span that can be achieved by conventional glass. The glass panel can be directly connected to the hoop beam without the need to set up a secondary keel. The support direction of the glass panel is adjusted to the height direction support, and the width can be narrowed as needed, so flat glass can better fit the effect of the curved facade of the curtain wall. The problem of high cost of using curved glass in the existing technology is solved. The cost of the glass part alone can be saved by more than half, which significantly reduces the cost.

[0025] 3. The column string and hoop beam form an integrated structure that supports each other: the column string can provide a vertical support point for the hoop beam, and the hoop beam can effectively restrain the out-of-plane instability of the column string and thus reduce the cross-sectional size of the steel column, thereby reducing the amount of steel used.

[0026] 4. The chord brace and the chord column are connected with a rigid node. The chord brace adopts a wide and flat cross-section, which makes the chord brace have better out-of-plane stiffness and lower in-plane stiffness. The better out-of-plane stiffness will effectively restrict the out-of-plane rotation of the chord brace, and there is no need to set a stabilizing cable at the end of the chord brace. In addition, the lower in-plane stiffness is more convenient for construction tensioning, which is beneficial to eliminate the unbalanced force of the steel cables on both sides of the chord brace.

[0027] 5. After the joint bearing is arranged inside the cable clamp and welded to the end of the support rod, the radial bearing can rotate freely inside the cable clamp. This connection structure can effectively solve the problem of stress concentration in the cable clamp of the prior art.

[0028] 6. The number of string columns in this application can be reduced to less than 1 / 3, and inexpensive hoop beams are used instead of horizontal wind cables. There is no need to set up stabilizing cables, and flat glass is used instead of expensive curved glass. Not only a more transparent indoor curtain wall effect is achieved, but also the overall cost of the curtain wall can be saved by more than 60%. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of this specification or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the embodiments of this specification. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0030] Figure 1 Schematic diagram of the structure of the tall curved facade curtain wall support system provided by the present invention Figure 1 ;

[0031] Figure 2 A schematic diagram of the structure of the hoop beam of the tall curved facade curtain wall support system provided by the present invention;

[0032] Figure 3 Schematic diagram of the local structure of the tall curved facade curtain wall support system provided by the present invention Figure 1 ;

[0033] Figure 4 Schematic diagram of the local structure of the tall curved facade curtain wall support system provided by the present invention Figure 2 ;

[0034] Figure 5 Schematic diagram of the structure of the tall curved facade curtain wall support system provided by the present invention Figure 2 ;

[0035] Figure 6 The connection structure between the steel cable and the cable clamp provided by the present invention is schematically shown. Figure 1 ;

[0036] Figure 7 The connection structure between the steel cable and the cable clamp provided by the present invention is schematically shown. Figure 2 .

[0037] Reference numerals:

[0038] 1. chord column; 2. steel cable; 3. hoop beam; 31. connecting section; 32. mid-span section; 4. suspension cable; 5. chord support rod; 51. rod root; 52. rod end; 6. cable clamp; 7. spherical bearing; 8. glass panel. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. It should be noted that, in the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined, separated, interchanged and / or rearranged with each other. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0040] In the accompanying drawings, the size and relative size of components may be exaggerated for clarity and / or descriptive purposes. When the exemplary embodiments may be implemented differently, a specific process sequence may be performed in a different order than described. For example, two successively described processes may be performed substantially simultaneously or in an order opposite to the order described. In addition, the same reference numerals represent the same components.

[0041] The terms used here are for the purpose of describing specific embodiments, and are not intended to be restrictive. As used here, unless the context clearly indicates otherwise, the singular forms "one (kind, person)" and "said (the)" are also intended to include plural forms. In addition, when the terms "comprise" and / or "include" and their variations are used in this specification, it is explained that there are stated features, integral bodies, steps, operations, parts, assemblies and / or their groups, but it is not excluded that there are or add one or more other features, integral bodies, steps, operations, parts, assemblies and / or their groups. It should also be noted that, as used here, the terms "substantially", "approximately" and other similar terms are used as approximate terms and not as degree terms, so that they are used to explain the inherent deviations of the measured values, calculated values ​​and / or the values ​​provided that will be recognized by those of ordinary skill in the art.

[0042] Example 1

[0043] A specific embodiment of the present invention, as Figures 1 to 5 As shown, a tall curved facade curtain wall support system is disclosed, comprising:

[0044] A plurality of bow-shaped structures are arranged at intervals, and the bow-shaped structures have a vertically arranged bow-shaped column 1, a bow-shaped support rod 5, and a steel cable 2 connected to both ends of the bow-shaped column 1 and connecting the ends of the bow-shaped support rod 5 in series to form an arc. The bow-shaped structure is configured to bear wind pressure loads, and the plurality of bow-shaped columns 1 are located on the same arc surface;

[0045] A plurality of hoop beams 3, each of which is an arc-shaped structure and vertically connected to the string column 1. The hoop beams 3 are arranged horizontally in accordance with the arc-shaped facade of the curtain wall and are configured to bear the wind suction load by using their spatial structural form;

[0046] The slings 4 are provided in a plurality of rows between the string columns 1 . The slings 4 are arranged vertically and are parallel to the string columns 1 . The slings 4 are connected to a plurality of hoop beams 3 in the longitudinal direction and are configured to hang the hoop beams 3 to reduce the vertical span of the hoop beams 3 .

[0047] The spacing between curtain wall columns of the traditional vertical self-balancing hyperbolic cable net curtain wall system usually needs to be controlled within 5m, and the density of curtain wall columns is relatively large, which affects the permeability. In this embodiment, due to the use of a rigid structure hoop beam 3, the spacing of the bow-shaped structure is no longer limited, so that the bow-shaped structure can be arranged at a relatively long distance. The increase in the spacing of the bow-shaped structure can achieve a more transparent indoor curtain wall effect. For example, the bow-shaped structure is arranged at a spacing of 12m~20m. For example, the spacing between two adjacent bow-shaped structures is 15m. The sagittal height of the steel cable 2 is controlled at 1 / 8~1 / 12 of the curtain wall height. The hoop beam 3 is arranged in close contact with the facade of the curtain wall, and one is arranged at a longitudinal spacing of 6~12m; the sling 4 for hanging the hoop beam 3 is arranged at a spacing of 3~4m.

[0048] The glass panels of the existing vertical self-balancing cable net curtain wall system can only be supported on the curtain wall columns in the horizontal direction. The spacing of the curtain wall columns determines the lateral size of the glass panels. Taking the spacing between two adjacent curtain wall columns as an example, a glass panel with a width of 5m is required. Since the width of the single glass panel used is large, the arc fitting effect of the entire curtain wall using the "straight instead of curved" method is poor. Therefore, curved glass needs to be used in the prior art, but the cost of curved glass is high. In this embodiment, the hoop beam 3 is controlled to be set at a spacing of 6 to 12m in the longitudinal direction. This distance is the span that can be achieved by conventional glass, so the glass can be directly supported on the hoop beam 3 in the vertical direction without the need to set up an additional secondary keel component. Exemplarily, except for the glass panel 8 at the bottom, the glass panel 8 at the top and the glass panel 8 in the middle part are directly installed on the hoop beam 3, and the hoop beam 3 carries the glass panel 8; the multiple glass panels 8 in the middle part are installed between two adjacent hoop beams 3, the lower end of the glass panel 8 is directly placed on the upper surface of the hoop beam 3 below the glass panel, the upper end of the glass panel 8 directly abuts the lower surface of the hoop beam 3 above the glass panel, and the upper and lower ends of the glass panel 8 are sealed with the hoop beam 3; the glass panel 8 is flat glass, the longitudinal height of the glass panel 8 in the middle part is equal to the distance between two adjacent hoop beams 3, the longitudinal height of the top glass panel 8 and the bottom glass panel 8 is set according to actual needs, the transverse width of the glass panel 8 is 1.5~2m, and multiple spliced ​​glass panels 8 are installed between two adjacent string columns 1. Since the transverse width of a single glass panel 8 is small, flat glass can better fit the effect of the curved facade of the curtain wall, and the cost is lower than that of curved glass.

[0049] In one of the optional implementations, a mounting hole is provided on the hoop beam 3 , and the mounting hole is for the string column 1 to pass through. The string column 1 can be welded to the hole wall of the mounting hole of the hoop beam 3 .

[0050] In another optional embodiment, the hoop beam includes a plurality of arc segments. During installation, an arc segment is welded to the left and right sides of the string column 1 , respectively, that is, the two ends of the same arc segment are welded to two adjacent string columns 1 .

[0051] In one optional embodiment, the hoop beam 3 can be subjected to a certain pre-tension in an appropriate manner, such as by pulling the hoop beam 3 with a jack to give it a certain pre-tension, so that the string column 1 and the hoop beam 3 can form a mutually supporting whole.

[0052] In this embodiment, a plurality of string support rods 5 are provided between the steel cable 2 and the string support column 1. The plurality of string support rods 5 are arranged horizontally and parallel to each other. The string support column 1, the steel cable 2 and the string support rods 5 of each string bow-shaped structure are located in a vertical plane. By arranging the string support column 1 at the position corresponding to the steel cable 2, the cable force of the steel cable 2 can be balanced.

[0053] In this embodiment, a wide and flat hoop beam 3 is used as a member to bear wind suction. The hoop beam 3 is rigid. For example, the hoop beam 3 is a steel structure. The hoop beam 3 has a certain bending rigidity and can be completely matched with the shape of the curved curtain wall. The two ends of the hoop beam 3 form a reliable connection with the main structure, and can be hinged. The hoop beam 3 has a certain thickness in the longitudinal direction and a certain width in the plane. The hoop beam 3 can be understood as an arc plate with thickness and width, and the arc plate is vertically connected to the string column 1.

[0054] In one of the preferred embodiments, the width of the hoop beam 3 is in the form of a variable cross-section. Specifically, the hoop beam 3 includes a connecting section 31 and a mid-span section 32 arranged at intervals, wherein the connection between the hoop beam 3 and the tension column 1 is the connecting section 31, and the portion between two adjacent connecting sections 31 is the mid-span section 32. The width of the connecting section 31 is greater than the width of the mid-span section 32, and the wider connecting section 31 and the narrower mid-span section 32 adopt a circular arc-shaped smooth transition. The hoop beam 3 of this structure has a beautiful shape and is basically consistent with the bending moment distribution trend of a continuous beam subjected to a uniformly distributed load.

[0055] In this embodiment, the string brace 5 can be a round rod, a square rod or a structure with other cross-sectional shapes. Preferably, the string brace 5 is a wide and flat structure, a flat plate structure, a uniform thickness, and a variable cross-sectional arrangement along the length direction of the string brace 5, that is, the cross-sectional dimensions at different positions along the length direction of the string brace 5 vary. Specifically, the tensioning strut 5 has a rod root 51 and a rod end 52. The cross-sectional dimension of the rod root 51 is large, and the cross-sectional dimension of the rod end 52 is small, that is, the length of the cross-sectional dimension of the rod root is large, and the cross-sectional dimension from the rod root 51 to the rod end 52 gradually decreases, which can be a linear decreasing relationship. A plurality of tensioning struts 5 of a flat plate structure are arranged horizontally and in parallel. From the top view of the tensioning strut 5, the width from the rod root 51 to the rod end 52 decreases uniformly. There can be a tensioning strut 5 at the position corresponding to the hoop beam 3, and the rod root 51 of this tensioning strut 5 is smoothly connected to the side end surface of the hoop beam 3 as a whole, or the rod root 51 of the tensioning strut 5 at other positions is fixedly connected to the outer wall surface of the tensioning column 1, and the rod root 51 of the tensioning strut 5 is fixedly connected to the hoop beam 3, such as welding, and the rod end 52 of the tensioning strut 5 is connected to the steel cable 2. The base 51 of the support rod of the traditional vertical self-balancing cable net curtain wall system is hinged with the curtain wall column, and the support rod has no out-of-plane stiffness. A stabilizing cable is required to constrain the support rod to always be in the vertical plane to prevent the support rod from rotating out of the vertical plane. However, the string support rod 5 of the present embodiment adopts the above structure, which has good out-of-plane stiffness and does not need to be provided with a stabilizing cable, which can further improve the transparent architectural effect of the interior.

[0056] Considering that if the steel cable 2 and the string brace 5 are directly fixedly connected as a unified whole, uneven external loads may cause local bending of the steel cable 2 and thus cause stress concentration, affecting the safety of the structure. Therefore, in one preferred embodiment, as Figure 6 to Figure 7 As shown, the rod end 52 of the string support rod 5 is connected to the steel cable 2 through a cable clamp 6, and a joint bearing 7 is arranged inside the cable clamp 6. The joint bearing 7 includes two semicircular spheres, and the inner grooves of the semicircular spheres are used to pass the steel cable 2. The two semicircular spheres are connected as a whole by bolts arranged on the outer side, thereby clamping the steel cable 2 inside; the cable clamp includes two clampable parts, and the inner part of the cable clamp is provided with a spherical cavity matching the spherical shape of the joint bearing. After the two parts of the cable clamp are connected as a whole by bolts, the joint bearing can be wrapped inside it. Since the joint bearing contacts the cable clamp through the arc spherical surface, it can rotate freely inside it, thereby better adapting to the change of the rotation angle of the steel cable caused by the external load, which can effectively improve the stress concentration problem caused by the local bending of the steel cable 2.

[0057] Compared with the prior art, the tall curved facade curtain wall support system provided in this embodiment includes a bow-string structure, hoop beams and slings. The bow-string structure is vertically arranged to bear wind pressure loads, and is arranged at a certain distance; the hoop beams are arranged horizontally to fit the curved curtain wall facade, and use the spatial form to bear the wind suction load; several slings are arranged between the bow-string columns, and the hoop beams are hung to reduce their vertical span. According to the shape of the curved curtain wall, a hoop beam of a curved structure that can fit is arranged, and the hoop beam can form effective rigidity to resist wind suction loads by using a smaller longitudinal cross-section. The hoop beam has a certain bending rigidity, and the bow-string structure can be arranged at a larger spacing. The bow-string column and the hoop beam form a mutually supporting entity: the bow-string column can provide a vertical support point for the hoop beam, and the hoop beam can effectively restrain the out-of-plane instability of the bow-string column and thus play a role in reducing the cross-sectional size of the steel column. When the spacing between hoop beams is controlled within a certain size range, regular-sized glass can be directly supported on the hoop beams without the need to set up secondary keels. The glass can be made of panels with a small width, and the facade effect of the curved curtain wall can be better achieved with flat glass.

[0058] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the present application in detail. It should be understood that the above description is only the specific implementation method of the present application and is not intended to limit the scope of protection of the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A tall curved facade curtain wall support system, characterized in that: include: A bow-shaped structure, wherein the bow-shaped structure is arranged vertically at intervals, and comprises a vertically arranged bow-shaped column, a bow-shaped support rod, and a steel cable connected to both ends of the bow-shaped column and connecting the ends of the bow-shaped support rod in series to form an arc shape, wherein a plurality of the bow-shaped columns are located on the same arc surface; A hoop beam, which is an arc-shaped structure and vertically connected to the string column, and the hoop beam is arranged horizontally in accordance with the arc-shaped facade of the curtain wall; The slings are connected to the plurality of hoop beams in a longitudinal direction and are configured to suspend the hoop beams to reduce a vertical span of the hoop beams.

2. The tall curved facade curtain wall support system according to claim 1 is characterized in that: The slings are arranged in a plurality of rows between the string columns, and the slings are arranged vertically and parallel to the string columns.

3. The tall curved facade curtain wall support system according to claim 2 is characterized in that: The bow-string structure is arranged at intervals of 12m to 20m, the rise of the steel cable is controlled at 1 / 8 to 1 / 12 of the curtain wall height, the hoop beam is arranged at intervals of 6 to 12m in the longitudinal direction; the suspension cable is arranged at intervals of 3 to 4m.

4. The tall curved facade curtain wall support system according to claim 3 is characterized in that: A plurality of glass panels are mounted on the hoop beam.

5. The tall curved facade curtain wall support system according to claim 4 is characterized in that: The glass panel is flat glass, and the lateral width of the glass panel is 1.5-2m.

6. The tall curved facade curtain wall support system according to claim 1 is characterized in that: The hoop beam is rigid and is a steel structure.

7. The tall curved facade curtain wall support system according to claim 6 is characterized in that: The hoop beam is an arc-shaped plate structure.

8. The tall curved facade curtain wall support system according to claim 7 is characterized in that: The hoop beam comprises connecting sections and mid-span sections arranged at intervals; wherein the connection between the hoop beam and the string column is the connecting section, and the portion between two adjacent connecting sections is the mid-span section; the width of the connecting section is greater than the width of the mid-span section, and the connecting section and the mid-span section are connected by a circular arc-shaped smooth transition.

9. The tall curved facade curtain wall support system according to claim 1 is characterized in that: The string-tensioning brace rod comprises a rod root and a rod end. The rod root of the string-tensioning brace rod is fixedly connected to the string-tensioning column, and the rod end is connected to the steel cable.

10. The tall curved facade curtain wall support system according to claim 9, characterized in that: The plurality of string support rods are arranged horizontally and parallel to each other, and the string columns, steel cables and string support rods of each string bow-shaped structure are located in a vertical plane.

Images