Large-span roof cable membrane structure

Abstract

The utility model relates to a kind of large-span roof cable membrane structures, it includes: main beam;It extends transversely, and presents arc shape;Sub-beam, its installation in main beam side, it presents concave shape, and longitudinally extends, its top installation obliquely downward suspender, its lower portion installs support rod;Lower longitudinal rod, its installation in sub-beam, it is supported by the structure of upper pull lower stay formed by the suspender and support rod;Stand rod, it is interval arranged on lower longitudinal rod;Tension rod is set on the both sides of stand rod, washer is fixed in the inner side of tension rod end plate, nut is welded in the inner side of washer, to supply the threaded rod body of tension bolt to pass, the head of the tension bolt extends into the T-shaped groove in the back of cable clamp strip, the inner side of the cable clamp strip is provided with C-shaped clamping groove to extend into the cable bag of cable membrane.

Description

Technical Field

[0001] This utility model relates to the field of roof cable membrane structures, and in particular to a large-span roof cable membrane structure. Background Technology

[0002] For example, Chinese Utility Model Patent Publication No. CN204530991U discloses a large-span prestressed arch truss and cable-membrane composite structure, consisting of multiple parallel prestressed arch trusses; a folded roof cable-membrane system is set between adjacent prestressed arch trusses, and the cable-membrane system is connected to the upper chord of the trusses; end reinforcement zones are set at both ends of the composite structure. However, directly installing the cable-membrane on the curved upper chord of the arched truss can easily lead to heat accumulation on the cable-membrane being transferred to the truss, potentially causing excessively high indoor temperatures. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a large-span roof cable membrane structure that can effectively prevent heat from being transferred from the cable membrane to the roof beams, so as to avoid excessive indoor temperature rise.

[0004] To address the aforementioned issues, a large-span cable-membrane roof structure was adopted, comprising: Main beam; it extends laterally and is arc-shaped; The secondary beam is installed on the side of the main beam. It is concave and extends longitudinally. The top of the beam is equipped with a downward-sloping hanger, and the bottom is equipped with a support rod. The lower longitudinal member, which is installed in the secondary beam, is supported by the upper pull-down bracing structure formed by the hanger and the support member; The uprights are spaced out on the lower longitudinal members; Tensioning rods 17 are provided on both sides of the upright 4. Washers are fixed on the inner side of the end plate of the tensioning rod 17, and nuts are welded to the inner side of the washers so that the threaded rod of the tensioning bolt 12 can pass through. The head of the tensioning bolt 12 extends into the T-groove 1301 on the back of the cable clamp strip 13. The inner side of the cable clamp strip 13 is provided with a C-groove 1302 so that the cable bag 1401 of the cable membrane 14 can extend into it.

[0005] With this structure, the concave secondary beams provide installation space for the top-pull-bottom bracing structure, and the lower longitudinal bars support the grid keel frame. The load is first transferred to the secondary beams through the top-pull-bottom bracing structure, and then to the main beam. The top-pull-bottom bracing structure solves the problem of non-standard parts at the nodes. The arc-shaped main beam does not directly bear the load. The load is first evenly distributed among the secondary beams and then transferred to the main beam, which is conducive to the uniform stress on the main beam. The cable membrane is tensioned by tensioning bolts to avoid direct heat transfer to the uprights and thus avoid indoor temperature rise.

[0006] As a further improvement of this utility model, a steel wire tie is also provided between the relative cable clips, and the steel wire is fixed on the cable bag.

[0007] A cable membrane structure is a stable curved surface formed by a high-strength flexible thin film material subjected to the tensile and compressive forces of other materials. After the cable membrane is arc-shaped, the cable bags on both sides are tied together with steel wires, which helps to ensure the stability of the arc-shaped structure. The steel wires can provide corresponding prestress to maintain the curved surface of the cable membrane.

[0008] In this embodiment, the bottom of the cable clamp is provided with ribs at intervals, and the outer end of the ribs is provided with a sleeve. The sleeve is for the adjusting bolt to slide through from top to bottom. The bolt head of the adjusting bolt presses on the steel wire. A washer is welded to the bottom of the sleeve. The washer is for the threaded rod of the adjusting bolt to slide through. The lower end of the threaded rod of the adjusting bolt is screwed into the adjusting nut.

[0009] With this structure, the adjusting nut is turned to further tension or loosen the steel wire to adjust the preload applied by the steel wire so that the cable membrane can stably maintain the arcuate surface.

[0010] As a further improvement of this utility model, the secondary beam includes: The left U-shaped steel has flanges on the upper and lower sides and extends to the right; The right-hand U-shaped steel has flanges on the upper and lower sides and extends to the left. The lower U-shaped steel has a folded edge on its left flange that is tightly attached to the lower flange of the left U-shaped steel and fastened by a bolt and nut assembly. The upper flange of its right flange has a folded edge that is tightly attached to the lower flange of the right U-shaped steel and fastened by a bolt and stud assembly.

[0011] This structure facilitates the splicing and assembly of the secondary beams.

[0012] As a further improvement of this utility model, the upper pull and lower support structure also includes: The upper tie rod has its two ends fixedly connected to the lower side of the upper flange of the left U-shaped steel and the lower side of the upper flange of the right U-shaped steel, respectively. The bottom surface of the tie rod is fixed with the lifting rod at intervals. The lifting rod extends obliquely downward to the lifting lugs on both sides of the lower longitudinal rod. The lifting lugs are obliquely fixed to both sides of the lower longitudinal rod. Transverse angle steel is placed on the bottom surface of the lower longitudinal bar; multiple rows of it are arranged at intervals. Longitudinal angle steel is set on both sides of transverse angle steel and multiple rows of transverse angle steel are fixed thereon; U-shaped hoop; it is spaced out on the lower longitudinal bar, and its two ends are connected downward to the upper transverse leg of the transverse angle steel and fastened with nuts. The lower longitudinal leg of the longitudinal angle steel and the upper transverse leg of the transverse angle steel are connected by the support rod and fastened with nuts. The S-shaped hanger has its upper flange fixed to the lower end of the support rod and secured with nuts; its web extends downward to below the two folded edges of the lower U-shaped steel; a longitudinal reinforcing angle steel is fixed between its lower flange and the two folded edges of the lower U-shaped steel; the upper longitudinal limb of the longitudinal reinforcing angle steel is tightly fixed to the bottom surface of the two folded edges of the lower U-shaped steel, and the lower vertical limb of the longitudinal reinforcing angle steel is tightly fixed to the inner side of the web of the S-shaped hanger and secured with studs.

[0013] With this structure, the U-shaped hoop tightens the lower longitudinal member, the left and right hangers prevent the lower longitudinal member from shifting to the left or right, and the support rod is supported on the bottom surface to resist vertical loads. This allows the left and right hangers to mainly resist bending moments and provide force components in different directions to support the lower longitudinal member. The S-shaped hook connects the support rod to the side of the secondary beam to ensure that the support rod is vertical and mainly bears the vertical load. This method of distributing different stresses helps to avoid stress concentration.

[0014] As a further improvement to this utility model, it also includes: The upper longitudinal bar is installed at the top of the upright and is parallel to the lower longitudinal bar; Diagonal braces are installed on both sides of the upper longitudinal bar and extend diagonally upwards; The mesh keel frame is fixed to the upper end of the diagonal brace; The framed skylight glass is installed on a grid-like keel frame. The mesh frame includes longitudinal keels and transverse arc-shaped keels. The longitudinal keels are fixed to the upper end of the diagonal braces. The transverse arc-shaped keels are cross-fixed to the ends of the longitudinal keels. Purlins parallel to the longitudinal keels are arranged between the transverse arc-shaped keels. Longitudinal channel steel is welded to the longitudinal keels and purlins. Multiple hangers are installed at intervals on the longitudinal channel steel. The hangers fix the frame of the framed skylight glass.

[0015] With this structure, the longitudinal channel steel is welded downwards to the longitudinal keel and purlin, dividing the installation area for the frame of the skylight glass and facilitating the assembly of the framed skylight glass.

[0016] As a further improvement of this utility model, the hanging part is inverted U-shaped and covers the longitudinal channel steel. Its side plate and the longitudinal channel steel are fastened by bolt and nut assembly. The top of the hanging part has a T-shaped bolt hole to embed the bolt head of the fastening bolt and to allow the threaded rod to pass through.

[0017] With this structure, the inverted U-shaped hanger and longitudinal channel steel are more stable.

[0018] As a further improvement of this utility model, the framed skylight glass includes: The inner frame is C-shaped with the opening facing downwards. It presses against the top of the hanger, and the bottom surface has first grooves on both sides for the threaded rod to pass through. A heat insulation pad, the upper part of which is filled in the first groove, and the lower part of which is placed on the top surface of the hanger; A snap-on cover is located inside the inner frame to close the opening in the inner frame through which the threaded rod passes. The first cushioning foam rod is located in the middle of the cover and passes upward through the middle of the inner frame, with the threaded rod passing through its middle section; The first support bar is placed on the cushioning foam bar, with the threaded rod passing through its middle section; The inner glass panel is located on both sides of the support strip; A spacer strip is placed between the two edges of the top surface of the inner frame and the bottom surface of the inner glass plate; A first structural sealant is used to fill the spacer between the gasket and the first cushioning foam bar; The second cushioning foam rod is placed on the first support bar, with the threaded rod passing through its middle section; The second support bar is placed on the second cushioning foam bar, with the threaded rod passing through its middle section; The outer glass panel is located on both sides of the second support strip; The second structural sealant is filled on both sides of the second buffer foam rod and located between the inner glass plate and the outer glass plate. An aluminum spacer frame is provided on the side of the second structural sealant and is located between the inner and outer glass plates, and is filled with desiccant. The third structural sealant is laid on the second support bar and the outer glass plate, with the threaded rod passing through its center; The outer frame is pressed on the third structural sealant, and the bottom surfaces on both sides have a second groove, through which the threaded rod passes, and a washer and nut are provided for tightening. The rubber stopper is positioned in the second groove at its upper part, pressed against the outer glass plate at its lower part, and its inner side is tightly attached to the third structural sealant. The first weather-resistant sealant is applied to the outside of the sealant plug. The second weather-resistant sealant is applied to the sides of the gaskets and nuts on the outer frame.

[0019] With this structure, the first buffer foam rod, the first support strip, the second buffer foam rod, and the second support strip form a sandwich structure, which can provide both buffer compression effect and support force. This is beneficial for stress release of the framed sunroof glass, while also ensuring vertical support force.

[0020] As a further improvement of this utility model, limiting flanges are provided on both sides of the upper part of the inner frame, which are closely attached to the side of the pad strip.

[0021] With this structure, the limiting flange helps prevent the pad strip from slipping laterally.

[0022] As a further improvement of this utility model, a steel wire tie is also provided between the relative cable clips, and the steel wire is fixed on the cable bag.

[0023] A cable membrane structure is a stable curved surface formed by a high-strength flexible thin film material subjected to the tensile and compressive forces of other materials. After the cable membrane is arc-shaped, the cable bags on both sides are tied together with steel wires, which helps to ensure the stability of the arc-shaped structure. The steel wires can provide corresponding prestress to maintain the curved surface of the cable membrane.

[0024] As a further improvement of this utility model, a support plate is provided on the upper longitudinal rod and hinged to the transverse arc-shaped keel.

[0025] When the diagonal brace expands and contracts due to temperature stress, the main beam can rotate around the hinge point of the support plate to release the bending moment.

[0026] This invention can prevent the heat from the cable membrane from being directly transferred to the roof beams, so that the heat is accumulated on the cable membrane and the indoor temperature is not too high. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of an embodiment.

[0028] Figure 2 The example shows an upper pull-down support structure.

[0029] Figure 3 It is an S-shaped mounting structure.

[0030] Figure 4 This is a schematic diagram of the glass node of a framed skylight.

[0031] Figure 5 It is a cable-membrane tensioned structure.

[0032] Figure 6 It is a preload adjustment structure for steel wire.

[0033] Attached reference numerals: 1. Main beam; 2. Secondary beam; 201. Hanger rod; 202. Support rod; 203. Left U-shaped steel; 204. Right U-shaped steel; 205. Lower U-shaped steel; 206. Upper tie rod; 207. Lifting lug; 208. Horizontal angle steel; 209. Longitudinal angle steel; 210. U-shaped hoop; 211. S-shaped hanger; 212. Longitudinal reinforcing angle steel; 3. Lower longitudinal member; 4. Vertical member; 5. Upper longitudinal member; 6. Diagonal brace; 7. Mesh keel frame; 701. Longitudinal keel; 702. Transverse arc-shaped keel; 8. Framed skylight glass; 801. Inner frame; 802. First groove; 803. Heat insulation pad; 804. Cover; 805. First cushioning foam rod; 806. First support strip; 807. Inner glass panel; 808. Gasket strip; 809. First structural sealant; 810. Second cushioning foam rod; 811. Second support strip; 812. Outer glass panel; 813. Second structural sealant; 814. Aluminum spacer frame; 815. Third structural sealant; 816. Outer frame; 817. Second groove; 818. Plug gasket; 819. First weather-resistant sealant; 820. Second weather-resistant sealant; 821. Limiting flange; 9. Longitudinal channel steel; 10. Hanger; 1001. T-bolt hole; 11. Fastening bolts; 12. Tensioning bolts; 13. Cable clamp strip; 1301. T-slot; 1302. C-slot; 1303. Rib plate; 1304. Sleeve; 1305. Adjusting bolt; 1306. Washer ring; 1307. Adjusting nut; 14. Cable membrane; 1401. Cable bag; 15. Steel wire; 16. Support plate; 17. Tensioner rod. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] Example 1 like Figures 1-5 As shown, a large-span cable-membrane roof structure includes: Main beam 1; it extends laterally and is arc-shaped; Secondary beam 2 is installed on the side of main beam 1. It is concave and extends longitudinally. A downward-sloping hanger 201 is installed at the top of the beam, and a support rod 202 is installed at the bottom. The lower longitudinal rod 3 is installed in the secondary beam 2 and is supported by the upper pull-down bracing structure formed by the hanger rod 201 and the support rod 202; Upright poles 4 are spaced out on the lower longitudinal poles 3; Tensioning rods 17 are provided on both sides of the upright 4. Washers are fixed on the inner side of the end plate of the tensioning rod 17, and nuts are welded to the inner side of the washers so that the threaded rod of the tensioning bolt 12 can pass through. The head of the tensioning bolt 12 extends into the T-groove 1301 on the back of the cable clamp strip 13. The inner side of the cable clamp strip 13 is provided with a C-groove 1302 so that the cable bag 1401 of the cable membrane 14 can extend into it.

[0037] With this structure, the concave secondary beam 2 provides installation space for the top-pull and bottom-bracing structure, and the lower longitudinal rod 3 is used to support the cable membrane structure so that the load is first transferred to the secondary beam through the top-pull and bottom-bracing structure, and then to the main beam. The top-pull and bottom-bracing structure solves the problem of non-standard parts at the nodes. The arc-shaped main beam does not directly bear the load. The load is first evenly distributed by each secondary beam and then transferred to the main beam, which is conducive to the uniform stress on the main beam. The cable membrane 14 is tensioned by tension bolts 12 to avoid heat being directly transferred to the uprights 4, so as to avoid indoor temperature rise.

[0038] In this embodiment, steel wires 15 are also provided between the relative cable clips 13 for tying, and the steel wires 15 are fixed to the cable bag 1401.

[0039] The cable membrane structure is a stable curved surface formed by a high-strength flexible thin film material subjected to the tension and compression of other materials. After the cable membrane is arc-shaped, the cable bags on both sides are tied together by steel wire 15, which helps to ensure the stability of the arc-shaped structure. The steel wire 15 can provide corresponding prestress to maintain the curved surface of the cable membrane.

[0040] In this embodiment, the bottom of the cable clamp 13 is provided with ribs 1303 at intervals, and the outer end of the ribs 1303 is provided with a sleeve 1304. The sleeve 1304 is for the adjusting bolt 1305 to slide through from top to bottom. The bolt head of the adjusting bolt 1305 presses on the steel wire 15. The bottom of the sleeve 1304 is welded with a washer 1306, and the washer 1306 is for the threaded rod of the adjusting bolt 1305 to slide through. The lower end of the threaded rod of the adjusting bolt 1305 is screwed into the adjusting nut 1307.

[0041] With this structure, the adjusting nut 1307 is turned to further tension or loosen the steel wire 15 to adjust the preload applied by the steel wire 15 so that the cable membrane can stably maintain the arcuate surface.

[0042] In this embodiment, the secondary beam 2 includes: The left U-shaped steel 203 has flanges on the upper and lower sides and extends to the right; The right U-shaped steel is 204, with its flanges on the upper and lower sides and extending to the left. The lower U-shaped steel 205 has a folded edge on its left flange that is in close contact with the lower flange of the left U-shaped steel 203 and is fastened by a bolt and nut assembly. The lower U-shaped steel 205 has a folded edge on its right flange that is in close contact with the lower flange of the right U-shaped steel 204 and is fastened by a bolt and stud assembly.

[0043] This structure facilitates the splicing and assembly of the secondary beams.

[0044] In this embodiment, the upper pull-down support structure further includes: The upper pull rod 206 has its two ends fixedly connected to the lower side of the upper flange of the left U-shaped steel 203 and the lower side of the upper flange of the right U-shaped steel 204, respectively. The bottom surface of the upper pull rod 206 is fixed with the lifting rod 201 at intervals. The lifting rod 201 extends obliquely downward to the lifting lugs 207 on both sides of the lower longitudinal rod 3. The lifting lugs 207 are obliquely fixed on both sides of the lower longitudinal rod 3. The transverse angle steel 208 is placed on the bottom surface of the lower longitudinal bar 3; multiple rows of it are arranged at intervals in front and behind. Longitudinal angle steel 209 is set on both sides of transverse angle steel 208 and fixes multiple rows of transverse angle steel 208; U-shaped hoop 210; it is spaced out and sleeved on the lower longitudinal rod 3, with its two ends passing through the upper transverse leg of the transverse angle steel 208 and fastened with nuts. The lower longitudinal leg of the longitudinal angle steel 209 and the upper transverse leg of the transverse angle steel 208 are connected by the support rod 202 and fastened with nuts. The upper flange of the S-shaped hanger 211 is fixed to the lower end of the support rod 202 and fastened with nuts; its web extends downward to below the two side flanges of the lower U-shaped steel 205; a longitudinal reinforcing angle steel 212 is fixed between its lower flange and the two side flanges of the lower U-shaped steel 205; the upper longitudinal limb of the longitudinal reinforcing angle steel 212 is tightly fixed to the bottom surface of the two side flanges of the lower U-shaped steel 205, and the lower vertical limb of the longitudinal reinforcing angle steel 212 is tightly fixed to the inner side of the web of the S-shaped hanger 211 and fastened with studs.

[0045] With this structure, the U-shaped hoop 210 tightens the lower longitudinal member 3, the left and right hangers 201 prevent the lower longitudinal member from shifting left and right, and the support rod 202 supports the bottom surface to resist vertical loads, so that the left and right hangers 201 are mainly used to resist bending moments and provide force components in different directions to support the lower longitudinal member 3; the S-shaped hook connects the support rod 202 to the side of the secondary beam 2 to ensure that the support rod 202 is vertical and mainly bears the vertical loads.

[0046] In this embodiment, it also includes: The upper longitudinal bar 5 is installed on the upper end of the upright bar 4 and is parallel to the lower longitudinal bar 3; Diagonal braces 6 are installed on both sides of the upper longitudinal rod 5 and extend diagonally upwards; The mesh keel frame 7 is fixed to the upper end of the diagonal brace 6; The framed skylight glass 8 is installed on the grid frame 7; The mesh frame 7 includes a longitudinal keel 701 and a transverse arc-shaped keel 702. The longitudinal keel 701 is fixed to the upper end of the diagonal brace 6. The transverse arc-shaped keels 702 are cross-fixed to the ends of the longitudinal keel 701. Purlins parallel to the longitudinal keel 701 are arranged between the transverse arc-shaped keels 702. Longitudinal channel steel 9 is welded to the longitudinal keel 701 and the purlins. Multiple hangers 10 are installed at intervals on the longitudinal channel steel 9. The hangers 10 fix the frame of the framed skylight glass 8.

[0047] With this structure, the longitudinal channel steel 9 is welded downwards to the longitudinal keel 701 and purlins, dividing the installation area for the frame of the sunroof glass 8, which facilitates the assembly of the frame sunroof glass 8.

[0048] In this embodiment, the hanging member 10 is inverted U-shaped and covers the longitudinal channel steel 9. Its side plate and the longitudinal channel steel 9 are fastened by a bolt and nut assembly. The top of the hanging member 10 has a T-shaped bolt hole 1001 to embed the bolt head of the fastening bolt 11 and to allow the threaded rod to pass through.

[0049] With this structure, the inverted U-shaped hanger 10 and the longitudinal channel steel 9 are more stable.

[0050] In this embodiment, the framed skylight glass 8 includes: The inner frame 801 is C-shaped with the opening facing downwards. It presses against the top of the hanger 10. The bottom surface of the frame has first grooves 802 on both sides for the threaded rod to pass through. The heat insulation pad 803 has its upper part filled in the first groove 802 and its lower part placed on the top surface of the hanger 10. A cover 804 is disposed inside the inner frame 801 to close the opening of the inner frame 801 through which the threaded rod passes. The first buffer foam rod 805 is disposed in the middle of the cover 804 and passes upward through the middle of the inner frame 801, with the threaded rod body passing through its middle part; The first support bar 806 is placed on the cushioning foam bar 805, and the threaded rod body passes through its middle part. The inner glass plate 807 is disposed on both sides of the support strip 806; A spacer strip 808 is disposed between the two edges of the top surface of the inner frame 801 and the bottom surface of the inner glass plate 807. A first structural sealant 809 is filled between the gasket 808 and the first cushioning foam rod 805; The second buffer foam rod 810 is placed on the first support bar 806, with the threaded rod body passing through its middle section; The second support bar 811 is placed on the second buffer foam bar 810, and the threaded rod body passes through its middle part. The outer glass plate 812 is disposed on both sides of the second support strip 811; The second structural sealant 813 is filled on both sides of the second buffer foam rod 810 and located between the inner glass plate 807 and the outer glass plate 812. An aluminum spacer frame 814 is disposed on the side of the second structural sealant 813 and located between the inner glass plate 807 and the outer glass plate 812, and is filled with a desiccant. The third structural sealant 815 is laid on the second support bar 811 and the outer glass plate 812, with the threaded rod body passing through its middle section. The outer frame 816 is pressed on the third structural sealant 815. The bottom surfaces on both sides of the frame have second grooves 817, through which the threaded rod passes and is fitted with a washer and nut for tightening. The rubber stopper 818 has its upper part set in the second groove 817, its lower part pressed on the outer glass plate 812, and its inner side tightly attached to the third structural sealant 815. The first weather-resistant sealant 819 is laid on the outside of the rubber stopper gasket 818; The second weather-resistant sealant 820 is applied to the sides of the gaskets and nuts on the outer frame 816.

[0051] With this structure, the first buffer foam rod 805, the first support strip 806, the second buffer foam rod 810 and the second support strip 811 form a sandwich structure, which can provide both buffer compression effect and support force. This is beneficial for stress release of the framed skylight glass 8, while also ensuring vertical support force.

[0052] In this embodiment, limiting flanges 821 are provided on both sides of the inner frame 801, which are closely attached to the side of the pad strip 808.

[0053] With this structure, the limiting flange 821 helps to prevent the pad strip 808 from slipping laterally.

[0054] In this embodiment, the skylight and the cable membrane form an upper and lower layer. The cable membrane is made of a material with good light transmission and heat insulation to further reduce heat transfer.

[0055] In this embodiment, a support plate 16 is provided on the upper longitudinal rod 5 and hinged to the transverse arc-shaped keel 702.

[0056] When the diagonal brace 6 expands and contracts due to temperature stress, the main beam 1 can rotate around the hinge point of the support plate 16 to release the bending moment.

[0057] This invention can prevent the heat from the cable membrane from being directly transferred to the roof beams, so that the heat is accumulated on the cable membrane and the indoor temperature is not too high.

[0058] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, several equivalent substitutions or obvious modifications can be made without departing from the concept of the present invention, and all such modifications, with identical performance or use, should be considered within the protection scope of the present invention.

Claims

1. A large-span roof cable-membrane structure, characterized in that... include: Main beam (1); It extends laterally and is arc-shaped; Secondary beam (2), which is installed on the side of main beam (1), is concave and extends longitudinally, with a downward-sloping hanger (201) installed at the top and a support rod (202) installed at the bottom. The lower longitudinal rod (3) is installed in the secondary beam (2) and is supported by the upper pull and lower brace structure formed by the hanger (201) and the support rod (202); Upright poles (4) are spaced out on the lower vertical poles (3); Tensioning rods (17) are provided on both sides of the upright (4). Washers are fixed on the inner side of the end plate of the tensioning rod (17), and nuts are welded on the inner side of the washers so that the threaded rod of the tensioning bolt (12) can pass through. The head of the tensioning bolt (12) extends into the T-groove (1301) on the back of the cable clamp (13). The inner side of the cable clamp (13) is provided with a C-groove (1302) so that the cable bag (1401) of the cable membrane (14) can extend into it.

2. The large-span roof cable-membrane structure according to claim 1, characterized in that... A steel wire (15) is also provided between the relative cable clamps (13), and the steel wire (15) is fixed on the cable bag (1401).

3. The large-span roof cable-membrane structure according to claim 2, characterized in that... The bottom of the cable clamp (13) is provided with ribs (1303) spaced apart. A sleeve (1304) is provided at the outer end of the ribs (1303). The sleeve (1304) is for the adjusting bolt (1305) to slide through from top to bottom. The bolt head of the adjusting bolt (1305) is pressed on the steel wire (15). A washer (1306) is welded to the bottom of the sleeve (1304). The washer (1306) is for the threaded rod of the adjusting bolt (1305) to slide through. The lower end of the threaded rod of the adjusting bolt (1305) is screwed into the adjusting nut (1307).

4. The large-span roof cable-membrane structure according to claim 1, characterized in that... The secondary beam (2) includes: The left U-shaped steel (203) has flanges on the upper and lower sides and extends to the right; The right U-shaped steel (204) has flanges on the upper and lower sides and extends to the left; The lower U-shaped steel (205) has a folded edge on its left flange that is in close contact with the lower flange of the left U-shaped steel (203) and fastened by a bolt and nut assembly. The lower U-shaped steel (204) has a folded edge on its right flange that is in close contact with the lower flange of the right U-shaped steel (204) and fastened by a bolt and stud assembly.

5. The large-span roof cable-membrane structure according to claim 4, characterized in that... The upper pull-down support structure also includes: The upper tie rod (206) is fixedly connected at both ends to the lower side of the upper flange of the left U-shaped steel (203) and the lower side of the upper flange of the right U-shaped steel (204), and the bottom surface of the tie rod (201) is fixed at intervals. The tie rod (201) extends obliquely downward to the lifting lugs (207) on both sides of the lower longitudinal rod (3); the lifting lugs (207) are obliquely fixed on both sides of the lower longitudinal rod (3). The transverse angle steel (208) is placed on the bottom surface of the lower longitudinal bar (3); multiple rows are arranged at intervals in front and behind it; Longitudinal angle steel (209) is set on both sides of transverse angle steel (208) and multiple rows of transverse angle steel (208) are fixed. U-shaped hoop (210); it is spaced on the lower longitudinal rod (3), and its two ends are passed down through the upper transverse leg of the transverse angle steel (208) and fastened with nuts. The lower longitudinal leg of the longitudinal angle steel (209) and the upper transverse leg of the transverse angle steel (208) are passed through the support rod (202) and fastened with nuts. The upper flange of the S-shaped pendant (211) is fixed to the lower end of the support rod (202) and fastened with nuts; its web extends downward to the sides of the lower U-shaped steel (205); a longitudinal reinforcing angle steel (212) is fixed between its lower flange and the sides of the lower U-shaped steel (205); the upper longitudinal limb of the longitudinal reinforcing angle steel (212) is tightly fixed to the bottom surface of the sides of the lower U-shaped steel (205), and the lower vertical limb of the longitudinal reinforcing angle steel (212) is tightly fixed to the inner side of the web of the S-shaped pendant (211) and fastened with studs.

6. The large-span roof cable-membrane structure according to claim 1, characterized in that... Also includes: The upper longitudinal bar (5) is installed on the upper end of the upright bar (4) and is parallel to the lower longitudinal bar (3); Diagonal braces (6) are installed on both sides of the upper longitudinal bar (5) and extend diagonally upwards; The grid keel frame (7) is fixed to the upper end of the diagonal brace (6); A framed skylight glass (8) is installed on a grid frame (7); The grid frame (7) includes a longitudinal keel (701) and a transverse arc keel (702). The longitudinal keel (701) is fixed to the upper end of the diagonal brace (6). The transverse arc keel (702) is cross-fixed to the end of the longitudinal keel (701). A purlin parallel to the longitudinal keel (701) is set between the transverse arc keels (702). A longitudinal channel steel (9) is welded on the longitudinal keel (701) and the purlin. Multiple hangers (10) are installed at intervals on the longitudinal channel steel (9). The hangers (10) fix the frame of the framed skylight glass (8).

7. The large-span roof cable-membrane structure according to claim 6, characterized in that... The hanging piece (10) is inverted U-shaped and covers the longitudinal channel steel (9). Its side plate and the longitudinal channel steel (9) are fastened by a bolt and nut assembly. The top of the hanging piece (10) has a T-shaped bolt hole (1001) to embed the bolt head of the fastening bolt (11) and to allow the threaded rod to pass through.

8. The large-span roof cable-membrane structure according to claim 6, characterized in that... The framed skylight glass (8) includes: The inner frame (801) is C-shaped with the opening facing downwards. It presses against the top of the hanger (10). The bottom surface of the frame has first grooves (802) on both sides for the threaded rod to pass through. The heat insulation pad (803) is filled in the first groove (802) at its upper part and placed on the top surface of the hanger (10) at its lower part; A cover (804) is provided inside the inner frame (801) to close the opening of the inner frame (801) through which the threaded rod body passes; The first cushioning foam rod (805) is disposed in the middle of the cover (804) and passes upward through the middle of the inner frame (801), the middle of which is for the threaded rod body to pass through; The first support bar (806) is placed on the cushioning foam bar (805), and the middle part is through which the threaded rod body passes; The inner glass plate (807) is disposed on both sides of the support strip (806); A spacer strip (808) is disposed between the two edges of the top surface of the inner frame (801) and the bottom surface of the inner glass plate (807); A first structural sealant (809) is filled between the gasket (808) and the first cushioning foam rod (805); The second cushioning foam rod (810) is placed on the first support bar (806), and the middle part is through which the threaded rod body passes; The second support bar (811) is placed on the second cushioning foam bar (810), and the middle part is through which the threaded rod body passes; The outer glass plate (812) is disposed on both sides of the second support strip (811); The second structural sealant (813) is filled on both sides of the second buffer foam rod (810) and located between the inner glass plate (807) and the outer glass plate (812); An aluminum spacer frame (814) is disposed on the side of the second structural sealant (813) and located between the inner glass plate (807) and the outer glass plate (812), and is filled with a desiccant. The third structural sealant (815) is laid on the second support bar (811) and the outer glass plate (812), with the threaded rod body passing through its middle section; The outer frame (816) is pressed on the third structural sealant (815), and the bottom surfaces on both sides are provided with second grooves (817), the middle of which allows the threaded rod to pass through, and is provided with a washer and nut for tightening; The rubber plug (818) is set in the second groove (817) at its upper part and pressed on the outer glass plate (812) at its lower part, and the third structural sealant (815) is tightly attached to its inner side. The first weather-resistant sealant (819) is laid on the outside of the rubber stopper gasket (818); The second weather-resistant sealant (820) is applied to the sides of the gasket and nut on the outer frame (816).

9. The large-span roof cable-membrane structure according to claim 8, characterized in that... The inner frame (801) has limiting flanges (821) on both sides that are in close contact with the side of the pad strip (808).

10. The large-span roof cable-membrane structure according to claim 6, characterized in that... The upper longitudinal rod (5) is provided with a support plate (16) which is hinged to the transverse arc-shaped keel (702).

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