Cable clamp suitable for large-span beams and curtain wall system including the cable clamp

Abstract

The present invention discloses a cable clamp suitable for a long-span beam, comprising: a cover plate assembly and a cable core assembly; the cable core assembly comprises: a male cable core and a female cable core; the male cable core and the female cable core are cable core structures that are mirror-symmetrical about a vertical plane, and the male cable core and the female cable core are combined and sleeved on the outer ring of the cable to achieve the bite of the cable; the cover plate assembly comprises a cable clamp upper cover plate and a cable clamp lower cover plate; the cable clamp upper cover plate is installed above the cable core assembly, and the cable clamp lower cover plate is installed below the cable core assembly, and the cable clamp upper cover plate and the cable clamp lower cover plate are combined to achieve the clamping of the long-span beam. The cable clamp suitable for a long-span beam provided by the present invention, based on the technical feature of the mechanical connection between the cover plate assembly and the cable core assembly, effectively transfers the deadweight and wind load of the long-span beam to the main structure on which the curtain wall relies; based on the technical feature of arranging a shoulder on the cable core, under the action of vertical force and lateral force, the load path is effectively transferred through the extrusion and shearing of the shoulder and the cover plate assembly.

Description

Technical Field

[0001] The invention relates to the technical field of glass curtain walls, in particular to a cable clamp suitable for large-span beams and a curtain wall system comprising the cable clamp. Background Art

[0002] At present, the glass curtain walls of large public buildings such as large venues, airports, and stations have higher and higher requirements for transparency. Large-span curtain walls are becoming more and more popular, and the application of cable curtain walls is becoming more and more extensive. The design of the connecting cable clamps between the cables and the beam profiles is often the key difficulty of the entire curtain wall design. It is necessary to clarify and simplify the load transfer path, and to achieve harmony and unity with the building facade. Summary of the invention

[0003] The object of the present invention is to overcome the deficiencies of the prior art and to provide a cable clamp suitable for large-span beams and a curtain wall system including the cable clamp.

[0004] To achieve the above object, the present invention adopts the following technical solution: a cable clamp suitable for a large-span beam, comprising: a cover plate assembly and a cable core assembly;

[0005] The cable core assembly comprises: a male cable core and a female cable core; the male cable core and the female cable core are cable core structures that are mirror-symmetrical about a vertical plane, and the male cable core and the female cable core are combined and sleeved on the outer ring of the cable to achieve engagement with the cable;

[0006] The cover plate assembly includes: a cable clamp upper cover plate and a cable clamp lower cover plate; the cable clamp upper cover plate is installed above the cable core assembly, and the cable clamp lower cover plate is installed below the cable core assembly. The cable clamp upper cover plate and the cable clamp lower cover plate are combined to achieve clamping of a large-span beam.

[0007] Its further technical solution is that the middle part of the male cable core is a semi-cylindrical tube, and shoulders are provided on both the front and rear sides of the semi-cylindrical tube, and a number of connecting through holes are provided on the side of the shoulders; the middle part of the female cable core is a semi-cylindrical tube, and shoulders are provided on both the front and rear sides of the semi-cylindrical tube, and a number of connecting through holes are provided on the side of the shoulders.

[0008] A further technical solution is that the upper surface of the semi-cylindrical tube is higher than the upper surface of the shoulder, forming an upper step; and the lower surface of the semi-cylindrical tube is lower than the lower surface of the shoulder, forming a lower step.

[0009] A further technical solution is that the cable clamp upper cover plate is a disc-shaped structure, and an upper step hole is provided in the middle of the cable clamp upper cover plate for accommodating the upper step position.

[0010] A further technical solution is that a plurality of countersunk holes are evenly arranged on the outer circle of the upper step hole.

[0011] A further technical solution is that the bottom of the cable clamp lower cover plate is a disc-shaped structure, a raised portion is provided on the upper surface of the bottom, and a lower step hole is provided in the middle of the raised portion for accommodating the lower step position.

[0012] A further technical solution is that a plurality of column legs are evenly arranged on the outer circle of the lower step hole, threaded holes are provided on the top ends of the column legs, and the column legs are arranged corresponding to the countersunk holes.

[0013] A further technical solution is that the male cable core and the female cable core are connected and assembled to each other by means of a countersunk screw passing through the connecting through hole, and a spring washer is provided between the contact surface of the countersunk screw and the shoulder.

[0014] A curtain wall system comprises the aforementioned cable clamp suitable for large-span beams, and also comprises large-span beams, wind-resistant columns, cables, tie rods and steel connectors; the two ends of the large-span beams are connected to the outside of the wind-resistant columns through the steel connectors; the tie rods are arranged on the outside of the large-span beams, on the same side as the wind-resistant columns; a reserved hole is provided in the middle of the large-span beams, the cables pass through the reserved hole, and the cables are connected to the large-span beams and transfer loads through the cable clamps.

[0015] A further technical solution is that the curtain wall system comprises a set number of large-span beams, which are arranged in parallel; and the cables are arranged in the middle and at the quarter-divided spans of the large-span beams.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: the cable clamp suitable for large-span beams provided by the present invention, based on the technical feature of adopting separate male and female cable cores, realizes the engagement of the cable in the reserved hole position of the large-span beam; based on the technical feature of the mechanical connection between the cover plate assembly and the cable core assembly, the deadweight and wind load of the large-span beam are effectively transmitted to the main structure on which the curtain wall relies; based on the technical feature of arranging a shoulder on the cable core, under the action of vertical force and lateral force, the load path is effectively transmitted through the extrusion and shearing of the shoulder and the cover plate assembly.

[0017] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the following preferred embodiments are specifically cited and described in detail as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the cable clamp applicable to a large-span beam of the present invention;

[0019] Figure 2 It is a schematic diagram of the structure after the cable clamp and the cable are combined;

[0020] Figure 3It is a schematic diagram of the structure after the cable core assembly and the cable are combined;

[0021] Figure 4 This is a schematic diagram of the cable clamp upper cover structure;

[0022] Figure 5 This is a schematic diagram of the cable clamp lower cover structure;

[0023] Figure 6 An exploded view of the cable clamp of the present invention;

[0024] Figure 7 It is a schematic diagram of the overall structure of the curtain wall system of the present invention.

[0025] Reference numerals

[0026] 1. Cable clamp; 2. Large-span beam; 3. Cable; 4. Wind-resistant column; 5. Steel connector; 6. Pull rod; 100. Cover plate assembly; 101. Cable clamp upper cover plate; 102. Upper step hole; 103. Countersunk hole; 104. Cable clamp lower cover plate; 105. Raised part; 106. Lower step hole; 107. Column leg; 108. Threaded hole; 200. Cable core assembly; 201. Male cable core; 202. Female cable core; 203. Shoulder; 204. Connecting through hole; 205. Upper step position; 206. Lower step position; 207. Semi-cylinder. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0031] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be connected, detachably connected, or integrated; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0033] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification.

[0034] See also Figure 1-2 , in the specific embodiment 1, a cable clamp 1 suitable for a large-span beam 2 (also used as a large-section large-span sunshade or transverse keel or decorative strip) is provided, comprising: a cover plate assembly 100 and a cable core assembly 200;

[0035] See also Figure 3The cable core assembly 200 includes: a male cable core 201 and a female cable core 202; the male cable core 201 and the female cable core 202 are cable core structures that are mirror-symmetrical about a vertical plane, and the male cable core 201 and the female cable core 202 are assembled and sleeved on the outer ring of the cable 3 to achieve engagement with the cable 3.

[0036] The cover plate assembly 100 includes: a cable clamp upper cover plate 101 and a cable clamp lower cover plate 104; the cable clamp upper cover plate 101 is installed above the cable core assembly 200, and the cable clamp lower cover plate 104 is installed below the cable core assembly 200. The cable clamp upper cover plate 101 and the cable clamp lower cover plate 104 are combined to clamp the long-span beam. The cable 3 is reliably connected through the cable clamp 1, and finally the deadweight and wind load of the long-span beam are effectively transferred to the main structure of the building (or other large buildings). At the same time, the long-span beam 2 can be pre-arched by tensioning the cable 3, eliminating the flexural deformation of the long-span beam 2.

[0037] The middle part of the male cable core 201 is a semi-cylindrical tube 207, and shoulders 203 are provided on both the front and rear sides of the semi-cylindrical tube 207, and a plurality of connecting through holes 204 are provided in the middle of the shoulders 203; the middle part of the female cable core 202 is a semi-cylindrical tube 207, and shoulders 203 are provided on both the front and rear sides of the semi-cylindrical tube 207, and a plurality of connecting through holes 204 are provided in the middle of the shoulders 203. In order to realize the connection between the cover plate assembly 100 and the cable core assembly 200, shoulders 203 are provided on both the male cable core 201 and the female cable core 202. The cable core assembly 200 transfers the load to the cable 3 through its own shoulder 203 structure under the limiting effect of the cover plate assembly 100. Under the action of vertical force, load transfer is realized through the extrusion and shearing of the shoulder 203 and the cover plate assembly 100, and the load transfer path is: long-span beam 2→cover plate assembly 100→cable core assembly 200→cable 3→main structure. The connecting through hole 204 is used to install the connecting screws. In this embodiment, the preferred number of the connecting through holes 204 on the single-side shoulder 203 is 2, that is, a pair of male cable cores 201 and female cable cores 202 are connected and fastened by 4 connecting screws. The preferred connecting screws are hexagon socket screws of corresponding specifications.

[0038] See also Figure 4-5, the upper surface of the semi-cylindrical tube 207 is higher than the upper surface of the shoulder 203, forming an upper step 205; the lower surface of the semi-cylindrical tube 207 is lower than the lower surface of the shoulder 203, forming a lower step 206. The cable clamp upper cover plate 101 is a disc-shaped structure, and an upper step hole 102 is provided in the middle of the cable clamp upper cover plate 101 for accommodating the upper step 205. A number of countersunk holes 103 are evenly arranged on the outer circle of the upper step hole 102. The cable core shoulder 203 is used to prevent the cable core assembly 200 from passing through the cover plate assembly 100, and the vertical load is transmitted through the limiting extrusion of the cable core shoulder 203 and the inner surfaces of the cable clamp upper cover plate 101 and the cable clamp lower cover plate 104; and the portion of the cable core assembly 200 passing through the cover plate assembly 100 (i.e., the upper step 205 and the lower step 206) can transmit the horizontal load through the mutual extrusion with the end cover section of the cover plate assembly 100.

[0039] The bottom of the cable clamp lower cover plate 104 is a disc-shaped structure, and a protrusion 105 is provided on the upper surface of the bottom. A lower step hole 106 is provided in the middle of the protrusion 105 to accommodate the lower step position 206. A number of column legs 107 are evenly arranged on the outer circle of the lower step hole 106, and a threaded hole 108 is provided at the top of the column leg 107. The column leg 107 is arranged corresponding to the countersunk hole 103. In this embodiment, the number of column legs 107 is preferably 4, and the cover plate assembly 100 clamps the large-span beam 2 by 4 countersunk screws of corresponding specifications with spring washers. The specification of the screw is determined by analyzing the force on the cable core part. For example, the friction force generated by pre-tightening the cable 3 with 4 M8 screws (material A4-70) to resist the force in the vertical direction (8kN), the condition to ensure that the joint surface does not slip is:

[0040] Z·f·m·F0≥K n ·F x

[0041] (In the formula, F0 is the preload force of a single screw; f is the friction coefficient between the joint surfaces; K n is the reliability coefficient; Z is the number of preloaded screws; m is the number of friction surfaces)

[0042] The calculation shows that a single M8 screw meets the design requirements. Force analysis of the upper and lower covers of the cable clamp (i.e., the cover assembly 100): The upper and lower covers of the cable clamp are connected by 4 M8 screws to resist the vertical force. Under the action of the vertical force, the upper and lower covers of the cable clamp and the upper and lower surfaces of the shoulder 203 in the vertical direction are squeezed and sheared; under the action of the horizontal force, the horizontal side surfaces of the upper step 205 and the lower step 206 are squeezed between the upper and lower covers of the cable clamp, and the side surfaces of the raised portion 105 of the lower cover 104 of the cable clamp are also squeezed. In other more specific embodiments, the lower surface of the upper cover 101 of the cable clamp is also provided with a raised portion.

[0043] The male cable core 201 and the female cable core 202 are connected to each other by means of countersunk screws passing through the connecting through holes 204 . A spring washer is provided between the contact surface of the countersunk screw and the shoulder 203 . The spring washer is used to prevent the countersunk screw from loosening.

[0044] See also Figure 6-7 This embodiment provides a curtain wall system, including the aforementioned cable clamp 1 suitable for the long-span beam 2, and also including the long-span beam 2, wind-resistant column 4, cable 3, tie rod 6 and steel connector 5; both ends of the long-span beam 2 are connected to the outside of the wind-resistant column 4 through the steel connector 5; the tie rod 6 is arranged on the outside of the long-span beam 2, on the same side as the wind-resistant column 4, and the tie rod 6 and the wind-resistant column 4 are both arranged on the side close to the outer wall of the building; a reserved hole is provided in the middle of the long-span beam 2, and the cable 3 passes through the reserved hole, and the cable 3 is connected to the long-span beam 2 and load is transferred through the cable clamp 1. In order to realize the connection between the cable clamp 1 and the long-span beam 2, the outer ring size of the upper and lower cover plates of the cable clamp 1 is slightly larger than the reserved hole on the profile of the long-span beam 2, and the size of the reserved hole should not be set too small, and the size is preferably such that a small wrench can be inserted into the reserved hole and then tighten the connecting screw above the cable clamp 1, so as to adjust the position of the cable core assembly 200 later.

[0045] The long-span beam 2 is a set number of long-span beams arranged in parallel; the cable 3 is arranged in the middle and four-divided span of the long-span beam 2, that is, three cables 1 are arranged on a single long-span beam 2 to connect with the cable 3. In order to prevent the damage of the beam profile caused by local stress, it is necessary to locally thicken the beam profile or set a core according to the situation. And if the structure of the curtain wall itself is inclined, the inclination angle of the cable 3 passing through the internal channel of the cable core assembly 200 can also be adjusted to meet the requirements of various inclination angles. For different inclination angles of different curtain walls, it is only necessary to adjust the angle of the cable channel inside the cable core assembly 200 to adapt and tension it, so that the final installation appearance of the cable clamp 1 is unified. Even if the horizontal installation angle of the cable clamp 1 is different, the installation effect can be neat and consistent, simple and beautiful after installation. At the same time, since four column legs 107 are arranged on the upper surface of the cable clamp lower cover plate 104, threaded holes 108 are arranged on the cable clamp upper cover plate 101 to meet the visual requirements of the visible surface (according to the upward viewing direction, the lower surface of the large-span beam is the visible surface).

[0046] The installation process of the cable clamp suitable for the large-span beam is as follows: a number of preset holes are opened on the upper part of the profile of the large-span beam 2 → the large-span beam 2 is installed to the outside of the wind-resistant column 4 through the steel connector 5 → the cable 3, the cover assembly 100, and the large-span beam 2 are connected in series in sequence (the series connection sequence is that the cable 3 passes through the cable clamp lower cover 104, the preset holes of the large-span beam, and the cable clamp upper cover 101 from bottom to top) → the cable core assembly 200 is installed (the cable core is temporarily fixed between the large-span beam 2 and the cable clamp lower cover 104) → the cable core is in place (tighten the cable 3, and at the same time adjust the cable core to the profile cavity of the large-span beam 2, and tighten 4 hexagonal screws) → the cover assembly 100 is installed to the preset position (the cover assembly 100 clamps the profile through 4 countersunk screws, and the matching of the cable core assembly 200 and the cover assembly 100 is checked at the same time).

[0047] Compared with the prior art, the cable clamp of the present embodiment, which is suitable for large-span beams, realizes the engagement of the cables in the reserved holes of the large-span beams based on the technical feature of adopting separate male and female cable cores; effectively transfers the deadweight and wind load of the large-span beams to the main structure on which the curtain wall relies based on the technical feature of the mechanical connection between the cover plate assembly and the cable core assembly; and effectively transfers the load path through the extrusion and shearing of the shoulder and the cover plate assembly under the action of vertical and lateral forces based on the technical feature of arranging a shoulder on the cable core.

[0048] The above examples are only used to further illustrate the technical content of the present invention, so that readers can understand it more easily, but it does not mean that the implementation of the present invention is limited to this. Any technical extension or re-creation made according to the present invention is protected by the present invention. The protection scope of the present invention shall be subject to the claims.

Claims

1. Cable clamp suitable for large span beams, characterized by: include: Cover plate assembly and cable core assembly; The cable core assembly comprises: a male cable core and a female cable core; the male cable core and the female cable core are cable core structures that are mirror-symmetrical about a vertical plane, and the male cable core and the female cable core are combined and sleeved on the outer ring of the cable to achieve engagement with the cable; The cover plate assembly comprises: a cable clamp upper cover plate and a cable clamp lower cover plate; the cable clamp upper cover plate is installed above the cable core assembly, and the cable clamp lower cover plate is installed below the cable core assembly, and the cable clamp upper cover plate and the cable clamp lower cover plate are combined to achieve clamping of a large-span beam; The middle part of the male cable core is a semi-cylindrical tube, and shoulders are provided on both the front and rear sides of the semi-cylindrical tube, and a plurality of connecting through holes are provided on the side of the shoulders; the middle part of the female cable core is a semi-cylindrical tube, and shoulders are provided on both the front and rear sides of the semi-cylindrical tube, and a plurality of connecting through holes are provided on the side of the shoulders; The upper surface of the semi-cylindrical tube is higher than the upper surface of the shoulder, forming an upper step; the lower surface of the semi-cylindrical tube is lower than the lower surface of the shoulder, forming a lower step; The cable clamp upper cover plate is a disc-shaped structure, and an upper step hole is provided in the middle of the cable clamp upper cover plate for accommodating the upper step position; A plurality of countersunk holes are evenly arranged on the outer circle of the upper step hole; The bottom of the cable clamp lower cover plate is a disc-shaped structure, a raised portion is provided on the upper surface of the bottom, and a lower step hole is provided in the middle of the raised portion for accommodating the lower step position; A plurality of column legs are evenly arranged on the outer circle of the lower step hole, threaded holes are provided on the tops of the column legs, and the column legs are arranged corresponding to the countersunk holes; The male cable core and the female cable core are connected and assembled with each other by means of a countersunk screw passing through the connecting through hole, and a spring washer is arranged between the contact surface of the countersunk screw and the shoulder.

2. A curtain wall system, comprising the cable clamp for large-span beams according to claim 1, characterized in that: It also includes a long-span beam, a wind-resistant column, a cable, a tie rod and a steel connector; both ends of the long-span beam are connected to the outside of the wind-resistant column through the steel connector; the tie rod is arranged on the outside of the long-span beam, on the same side as the wind-resistant column; a reserved hole is provided in the middle of the long-span beam, the cable passes through the reserved hole, and the cable is connected to the long-span beam and transfers load through a cable clamp.

3. The curtain wall system according to claim 2, characterized in that: The curtain wall system comprises a set number of long-span beams, which are arranged in parallel; the cables are arranged at the middle and at the quarter-divided spans of the long-span beams.

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