Integrally constructed large-span steel truss metal roof module and splicing method

Abstract

The invention provides an integrally constructed large-span steel truss metal roof module, which relates to a main body steel truss and comprises a lower layer main purline, a profiling bottom plate, an air isolation layer, heat preservation rock wool, a waterproof coiled material, an upper layer main purline, an upper layer purline and a vertical lockrand steel plate. The invention further provides a splicing method of the integrally constructed large-span steel truss metal roof module. The waterproof, anti-seepage and wind uplift-resistant capacities of joints between modules of the metal roof system are guaranteed, in view of the fact that installation errors exist when the roof is installed, so that the shape finding of the roof is difficult, the form that a new purline support is matched with a purline adjuster is adopted for the roof system, and accurate shape finding and easy splicing of the roof system are achieved; the profiling bottom plate, the gas insulation layer, the heat preservation rock wool, the waterproof coiled material, the vertical lockrand steel plate and the decorative plate are all in a step shape from low to high, when metal roof modules are spliced on site, splicing can be conducted from the middle, and a good operation space is provided for constructors.

Description

Technical Field

[0001] The invention relates to the technical field of metal roof systems, and in particular to an integrated large-span steel truss metal roof module and a splicing method. Background Art

[0002] As the top maintenance structure of the large-span space structure, the metal roof system is very important for its lower building structure in terms of waterproofing, anti-seepage, thermal insulation, and wind resistance. Currently, the metal roof system is commonly used in large buildings such as airport terminals, exhibition centers, and stadiums. There are usually two forms of construction methods for metal roof systems on large-span space structures: first, when the supporting steel trusses at the bottom of the metal roof system are fully constructed at the top of the column, the metal roof system layers are assembled on them layer by layer; second, the steel trusses are divided into zones, and the steel trusses of each zone are assembled on the ground, and the metal roof assembly on the top is also completed, and then the steel trusses of each zone are lifted together with the metal roof system on it to the top of the column, and the rods are added at the zone joints and the remaining metal roof system assembly is completed at the top of the column. The former method has low construction efficiency, long period, difficulty in material transportation and difficulty in ensuring construction quality. At present, this construction method is gradually decreasing. The latter method has high construction efficiency, short period, certain guarantee of workers' safety and improved construction quality. This method is widely used in the field of metal roof system construction, but this method also has certain problems, namely, it is difficult to assemble the metal roof system at the partition joints, and it is easy to produce insufficient waterproofing, anti-seepage and wind-resistant capabilities at the partition joints. In addition, there is also the problem of difficulty in finding the roof shape due to construction errors. Summary of the invention

[0003] In order to solve the above problems, the present invention aims to propose an integrated large-span steel truss metal roof module and a splicing method, which ensures the waterproof, anti-seepage and wind-resistant capabilities of the joints between the metal roof system modules. At the same time, in view of the installation errors that may occur when installing the roof, making it difficult to find the shape of the roof, the roof system adopts a new purlin support in combination with a purlin adjuster, which achieves accurate shaping of the roof system and easy splicing.

[0004] To achieve the above object, the technical solution of the present invention is achieved as follows: A large-span steel truss metal roof module with integrated construction, involving a main steel truss, including a lower main purlin, a corrugated bottom plate, an air barrier layer, thermal insulation rock wool, a waterproof coiled material, an upper main purlin, an upper layer purlin and a vertical lock edge steel plate, wherein the lower main purlin is installed on the main steel truss at the lower part thereof, the lower main purlin is connected to the lower purlin support through a purlin adjuster, the lower purlin support is installed on the main steel truss, a corrugated bottom plate is laid on the upper part of the lower main purlin, an air barrier layer is laid on the corrugated bottom plate, thermal insulation rock wool is laid on the air barrier layer, a waterproof coiled material is laid on the upper layer of the thermal insulation rock wool, and the waterproof coiled material is used as The second waterproof layer of the entire roof system; the lower main purlin is installed with a round tube column purlin support, the round tube column purlin support is installed with a purlin adjuster that is the same as the lower main purlin, the upper main purlin is fixed to the purlin adjuster through a channel steel, the upper main purlin is installed with a connecting plate on the side, and the upper purlin is installed on the upper main purlin through the connecting plate; the upper purlin is installed with a wind-resistant clip, and the upright lock-edge steel plate is fixed to the upper purlin through the wind-resistant clip, and the upright lock-edge steel plate serves as the first waterproof layer, wherein the corrugated bottom plate, air barrier layer, thermal insulation rock wool, waterproof membrane and upright lock-edge steel plate are all stepped from low to high.

[0005] Furthermore, it also includes a partitioned keel and a decorative panel, wherein a rib top clamp is installed on the upright lock-edge steel plate, a keel adjuster is welded on the rib top clamp, a U-shaped clamp is installed on the keel adjuster, the U-shaped clamp is welded to the partitioned keel, and a decorative panel is installed on the partitioned keel, wherein the upright lock-edge steel plate and the decorative panel are also stepped.

[0006] Furthermore, the keel adjuster includes a U-shaped pallet, a groove-type support plate and a self-weight pin shaft. The U-shaped pallet has large-sized holes on the two vertical plates, and small-sized holes are opened on the sides of the vertical plates. "Ears" with holes are provided on both sides of the groove-type support plate, and the "ears" are stuck in the large-sized holes to achieve the up and down adjustment of the groove-type support plate along the U-shaped pallet. The self-weight pin shaft is responsible for connecting the U-shaped pallet and the groove-type support plate. The groove-type support plate is welded to the U-shaped clamp on the keel, and the height inside the U-shaped pallet is equal to the sum of the thickness of the web of the groove-type support plate and the height of the U-shaped clamp.

[0007] Furthermore, the purlin adjuster includes two L-shaped pallets, each of which has a through hole in the middle to reserve a slot, and the structure adjacent to the slot is a convex column. A lifting plate is provided in the middle of the two L-shaped pallets, and the lifting plate has a "convex" through hole in the longitudinal direction. The lifting plate can be adjusted up and down on the L-shaped pallet by being stuck in the "convex" through hole. The lifting plate is welded to the channel steel on the purlin, and the height of the L-shaped pallet is equal to the sum of the thickness of the lifting plate and the height of the channel steel.

[0008] Furthermore, the lower purlin support is a horse stool, and a pair of perforated channel steels are connected by bolts at the corresponding horse stool of the lower main purlin. Each perforated channel steel has 4 bolt holes in 2 rows and 2 columns. During installation, ensure that the upper edge of the perforated channel steel is not higher than the upper surface of the lower main purlin. The perforated channel steel is welded to the lifting plate in the purlin adjuster, and the lifting plate is fixed to the L-shaped card plate through a lifting plug plate. The thickness of the two ends of the "convex" lifting plug plate is consistent with the height of the card slot on the L-shaped card plate. When the lifting plug plate is inserted into the adjuster to connect the L-shaped card plate and the lifting plate, the outer edge of the lifting plug plate remains flush with the outer edge of the L-shaped card plate, and a threaded hole is set on the convex column of the L-shaped card plate, and the baffle is fixed to the L-shaped card plate through the threaded hole on the convex column, thereby ensuring that the plug plate will not fall off.

[0009] Furthermore, when two corrugated bottom plates are spliced, the troughs are overlapped together, and the self-tapping screws are nailed to the lower main purlins corresponding to the troughs. The air barrier layer and the thermal insulation rock wool are both flexible materials. During construction, the air barrier layer is laid first, and then the thermal insulation rock wool is laid thereon; the thermal insulation rock wool has two layers, and the upper and lower layers of thermal insulation rock wool are laid crosswise; when the waterproof membrane is laid, the seams are overlapped, and the waterproof membrane at the bottom of the seam is nailed to the bottom corrugated bottom plate with membrane nails, and the upper waterproof membrane is connected to the lower waterproof membrane by ironing with a hot ironing machine.

[0010] Furthermore, the round tube column purlin support located on the lower main purlin passes through the air barrier layer, thermal insulation rock wool and waterproof membrane, and a hole with a diameter similar to that of the round tube column is opened in the air barrier layer, thermal insulation rock wool and waterproof membrane at the round tube column purlin support, and a hole edge sealing membrane is installed at the hole, and the edge sealing membrane is ironed and connected to the waterproof membrane, and the edge sealing membrane is firmly fixed to the round tube of the round tube column purlin support at the wrapped edge with a steel hoop, the steel hoop consists of two hoop plates, and the two hoop plates are bolted; the upper main purlin and the upper layer purlin have different sizes, and the upper surface of the upper layer purlin is kept flush when it is connected to the upper main purlin.

[0011] Furthermore, the upper main purlin is also installed with a round tube column purlin support, and a holeless channel steel is welded to the corresponding round tube column purlin support. During welding, the upper edge of the holeless channel steel is not higher than the upper surface of the upper main purlin, and the holeless channel steel is welded to the same purlin adjuster as that on the lower main purlin. After the purlin adjuster is installed on the purlin, the L-shaped clamping plate on it is welded to the round tube column purlin support on the lower main purlin, and the purlins are connected together through a steel core sleeve; a pair of connecting plates are welded on the side of the upper main purlin, and each connecting plate has bolt holes. The upper purlin is connected through The connecting plate is bolted to the connecting plate on the upper main purlin. During installation, the upper main purlin and the upper surface of the upper layer purlin are kept on the same horizontal plane; the wind-resistant clip is installed on the upper layer purlin by self-tapping screws, and the spacing in the direction perpendicular to the ribs of the upright lock-edge steel plate is the spacing between the ribs. The ribs of the upright lock-edge steel plate are buckled to the wind-resistant clip at the joints of the upright lock-edge steel plate, and the ribs are tightly clamped on the wind-resistant clip with a locking machine. The rib top clip is installed at the rib of the upright lock-edge steel plate corresponding to the wind-resistant clip, and the rib top clip is firmly mounted on the rib by bolts.

[0012] Furthermore, the wind-resistant clips are installed on the upper main purlins and the upper layer purlins according to the spacing of the ribs of the upright lock-edge steel plates, the ribs of the upright lock-edge steel plates are respectively buckled onto the wind-resistant clips, and the ribs are tightly clamped onto the wind-resistant clips by a lock-edge machine; the corrugated base plate is fixed to the lower main purlins by self-tapping screws, the thermal insulation rock wool is fixed to the corrugated base plate together with the vapor barrier by rock wool nails, the decorative panel is connected to the partition keel by the aluminum angle code at its upper edge and by self-tapping screws, and a rubber pad is provided under the aluminum angle code.

[0013] In order to achieve the above object, the present invention also provides a method for splicing large-span steel truss metal roof modules with integrated construction, comprising the following steps: S1: According to the reference control line, install the horse stool of the lower main purlin on the steel truss between the partitions, install the perforated channel steel and purlin adjuster on the lower main purlin, and weld the purlin adjuster to the horse stool. When installing the lower main purlin, reserve a certain construction width at the distance from the partition joint. Then, lay the vapor barrier layer, thermal insulation rock wool, waterproof membrane, upper main purlin, upper layer purlin, vertical lock edge steel plate, partition keel layer layer by layer in order, and finally the decorative board. The edge of each layer reserves a certain construction width relative to the previous layer, and this construction method is called "step-like construction method". After the metal roof on the partition steel truss is laid, it is lifted to the design elevation of the column top; S2: Complete the welding of the remaining steel trusses at the joints between partitions, and complete the installation and welding of the saddles, purlin adjusters, lower main purlins and the round tube column purlin supports at the joints. Under normal circumstances, the two lower main purlins are connected together through steel core sleeves. When there is a construction error and the purlins cannot be completely butted, first adjust the purlin adjusters on the saddles to keep the upper surface of the purlins flush, then weld the purlin adapters of the purlin connectors to the ends of the purlins, and then connect the purlin adapters together through round tubes. The bottom of the round tube is welded to the support column, and the bottom of the support column is welded to the main steel truss through the saddles; S3: Lay the corrugated bottom plate, buckle the corrugated bottom plates in sequence at the joints between partitions along the direction of the lower main purlin, and buckle the wave crests together when connecting; lay the corrugated bottom plate from one end of the joints between partitions to the other end in the direction perpendicular to the lower main purlin. If there is no construction error, the construction is normal. If there is a construction error, when the corrugated bottom plate is laid to the edge of the other end, use a flat plate strip to connect the two corrugated bottom plates at the wave crest with self-tapping screws; S4: Lay the vapor barrier layer and thermal insulation rock wool on the corrugated bottom plate at the partition joints. The vapor barrier layer and thermal insulation rock wool are laid simultaneously. The upper and lower layers of thermal insulation rock wool are laid crosswise, and rock wool nails are driven into the diagonal parts of the thermal insulation rock wool. The lower part is nailed to the corrugated bottom plate. The waterproof membrane is laid on the upper part of the thermal insulation rock wool. The lower membrane at the membrane joint is nailed to the bottom corrugated bottom plate with membrane nails. The upper membrane is ironed and connected to the lower membrane with a hot ironing machine. S5: When installing the upper main purlins, if there is no construction deviation, connect the two upper main purlins through the steel core sleeve. If there is a construction deviation, first adjust the purlin adjuster to level the upper surface of the purlin, and then use the purlin connector to connect the upper main purlins with construction deviation. The upper purlins are installed perpendicular to the side of the upper main purlins through the connecting plate; S6: Install wind-resistant clips and vertical lock-edge steel plates on the upper main purlins and upper layer purlins at the partition joints, and lay the vertical lock-edge steel plates piece by piece from the partition edge to the joint in the direction perpendicular to the vertical lock-edge steel plate ribs until the interval in the joint interval is less than the width of one vertical lock-edge steel plate. The remaining intervals are laid with vertical lock-edge steel plates with single-sided plate ribs. The vertical lock-edge steel plates are nailed to the lower main purlins at the intersection with self-tapping screws, and the intersection is sealed with sealant; along the vertical lock-edge steel plate rib direction, lay from the partition edge inward to the vertical lock-edge steel plate edge distance of 20 cm and stop laying. The remaining intervals are laid with flat slats. The laying principle is that the flat slats are at the bottom and the vertical lock-edge steel plates are at the top, and the intersection is sealed with sealant; S7: Install rib top clamps on the standing seam steel plates at the partition joints, install keel adjusters on the rib top clamps, and install the partition keels on the keel adjusters through U-shaped clamps; when there is no construction deviation in the partition keel construction, use the steel core sleeve for butt connection; when there is a construction deviation, first adjust the keel adjuster to keep the upper surface of the keel flush, and then use the L-shaped connector to connect the keel with construction deviation; S8: Install the topmost decorative panel at the partition joint, process the size of the decorative panel according to the size of the joint area, set aluminum corner brackets at the edges of the decorative panel, and connect the decorative panel to the partition keel below it through the aluminum corner brackets.

[0014] Beneficial effects: The present invention ensures the waterproof, anti-seepage and wind-resistant capabilities of the joints between the modules of the metal roofing system. At the same time, in view of the installation errors that may occur when installing the roof, which makes it difficult to find the shape of the roof, the roofing system adopts a new purlin support in combination with a purlin adjuster, thereby achieving accurate shape finding of the roofing system and easy splicing. In addition, the corrugated base plate, air barrier layer, thermal insulation rock wool, waterproof membrane, upright lock-edge steel plate and decorative plate of the present invention are all stepped from low to high. When splicing the metal roofing modules on site, they can be spliced ​​from the middle, providing a good working space for construction personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings: Figure 1 This is a schematic structural diagram of a large-span steel truss metal roof module (two modules) of integrated construction according to an embodiment of the present invention; Figure 2 This is a structural schematic diagram of a large-span steel truss metal roof module of integrated construction according to an embodiment of the present invention, in which the lower main purlin is installed on the main steel truss; Figure 3 This is a schematic diagram of the structure of a purlin adjuster in a large-span steel truss metal roof module of an integrated construction according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of the purlin adapter in the large-span steel truss metal roof module of the integrated construction according to the embodiment of the present invention; Figure 5 This is a schematic diagram of the integrated construction of a large-span steel truss metal roof module edge sealing coil and its steel hoop structure according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the upper main purlin of the large-span steel truss metal roof module of the integrated construction according to the embodiment of the present invention installed on the circular tube column purlin support structure; Figure 7This is a schematic diagram of the connection structure of the steel core sleeve and purlin of the large-span steel truss metal roof module of the integrated construction according to the embodiment of the present invention; Figure 8 This is a schematic diagram of the connection structure of the upper primary and secondary purlins of the large-span steel truss metal roof module of the integrated construction according to the embodiment of the present invention; Fig. 9 This is a schematic diagram of the wind-resistant clip and rib top clip structure of the large-span steel truss metal roof module with integrated construction according to an embodiment of the present invention; Fig.10 It is a structural schematic diagram of the large-span steel truss metal roof module compartment keel installed on the purlin adjuster according to the embodiment of the present invention; Fig.11 This is a schematic diagram of the structure of a large-span steel truss metal roof module keel adjuster with integrated construction according to an embodiment of the present invention; Fig.12 This is a schematic diagram of the standing seam steel plate structure of the single-side plate rib of the large-span steel truss metal roof module with integrated construction according to an embodiment of the present invention; Fig.13 It is a structural schematic diagram of the integrated construction of large-span steel truss metal roof module compartment keel connection according to an embodiment of the present invention. DETAILED DESCRIPTION

[0016] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0017] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0018] Example 1

[0019] See also Figure 1-13: A large-span steel truss metal roof module with integrated construction, involving a main steel truss 0, including a lower main purlin 1, a corrugated bottom plate 2, an air barrier 3, thermal insulation rock wool 4, a waterproof roll 5, an upper main purlin 6, an upper layer purlin 7 and a vertical lock edge steel plate 8, wherein the lower main purlin 1 is installed on the main steel truss 0 at the lower part thereof, the lower main purlin 1 is connected to the lower purlin support 104 through a purlin adjuster 108, the lower purlin support 104 is installed on the main steel truss 0, a corrugated bottom plate 2 is laid on the upper part of the lower main purlin 1, an air barrier 3 is laid on the corrugated bottom plate 2, thermal insulation rock wool 4 is laid on the air barrier 3, a waterproof roll 5 is laid on the upper layer of the thermal insulation rock wool 4, and the waterproof roll 5 serves as the entire The second waterproof layer of the roof system; a circular tube column purlin support 101 is installed on the lower main purlin 1, and a purlin adjuster 108 which is the same as the lower main purlin 1 is installed on the circular tube column purlin support 101; the upper main purlin 6 is fixed to the purlin adjuster 108 through a channel steel; a connecting plate 61 is installed on the side of the upper main purlin 6, and the upper purlin 7 is installed on the upper main purlin 6 through the connecting plate 61; a wind-resistant clip 81 is installed on the upper purlin 7, and a vertical lock-edge steel plate 8 is fixed to the upper purlin 7 through the wind-resistant clip 81, and the vertical lock-edge steel plate 8 serves as the first waterproof layer, wherein the corrugated bottom plate 2, the air barrier layer 3, the thermal insulation rock wool 4, the waterproof membrane 5 and the vertical lock-edge steel plate 8 are all stepped from low to high.

[0020] This embodiment ensures the waterproof, anti-seepage and wind-resistant capabilities of the modular joints of the metal roofing system. At the same time, in view of the installation errors that may occur when installing the roof, making it difficult to find the shape of the roof, a new purlin support is used in conjunction with a purlin adjuster for the roofing system, thereby achieving accurate shape finding of the roofing system and facilitating splicing. In addition, the corrugated base plate, air barrier layer, thermal insulation rock wool, waterproof membrane, upright lock-edge steel plate, and decorative plate of this embodiment are all stepped from low to high. When splicing the metal roofing modules on site, they can be spliced ​​from the middle, providing a good working space for construction personnel.

[0021] In a specific example, it also includes a partitioned keel 9 and a decorative panel 10, wherein a rib top clamp 82 is installed on the upright lock-edge steel plate 8, a keel adjuster 83 is welded on the rib top clamp 82, a U-shaped clamp 84 is installed on the keel adjuster 83, the U-shaped clamp 84 is welded to the partitioned keel 9, and the decorative panel 10 is installed on the partitioned keel 9, wherein the upright lock-edge steel plate 8 and the decorative panel 10 are also stepped.

[0022] In this embodiment, the height adjustment between the divided keels of two metal roof modules can be achieved through the keel adjuster. When there are errors in the construction and installation, normal splicing can be achieved by adjusting the keel adjuster. Similarly, the upright lock-edge steel plates and decorative panels are stepped from low to high. When the metal roof modules are spliced ​​on site, they can be spliced ​​from the middle, providing a friendly working space for construction personnel.

[0023] In a specific example, the keel adjuster 83 includes a U-shaped card plate 8301, a grooved support plate 8302 and a self-weight pin 8303. The U-shaped card plate 8301 has large holes on the two vertical plates, and small holes are opened on the sides of the vertical plates. "Ears" with holes are set on both sides of the grooved support plate 8302. The "ears" are stuck in the large holes to achieve the up and down adjustment of the grooved support plate 8302 along the U-shaped card plate 8301. The self-weight pin 8303 is responsible for connecting the U-shaped card plate 8301 and the grooved support plate 8302. The grooved support plate 8302 is welded to the U-shaped clamp 84 on the keel. The height inside the U-shaped card plate 8301 is equal to the sum of the thickness of the web of the grooved support plate 8302 and the height of the U-shaped clamp 84.

[0024] It should be noted that when installing the keel adjuster on the rib top clamp, first weld the U-shaped card plate in the keel adjuster to the rib top clamp, then install the grid keel on the grooved support plate of the keel adjuster through the U-shaped clamp, and adjust the up and down position of the grooved support plate to achieve the required elevation of the grid keel, and then insert the self-weight pin into the hole to keep the grooved support plate fixed. The two ends of the self-weight pin will naturally droop around the axis under the action of self-weight, so that the self-weight pin will not fall off from the hole of the keel adjuster. When installing for the first time, the grooved support plate is installed at the middle height of the U-shaped card plate to facilitate the subsequent adjustment of the height. It should be emphasized that the height inside the U-shaped card plate is equal to the sum of the thickness of the web of the grooved support plate and the height of the U-shaped clamp. The grid keels in the cross direction are connected together with L-shaped connectors, which are welded to the grid keels in one direction and bolted to the grid keels in the other direction.

[0025] In a specific example, the purlin adjuster 108 includes two L-shaped card plates 1081, and the L-shaped card plates 1081 have a through hole in the middle to reserve a card slot, and the structure adjacent to the card slot is a convex column. A lifting plate 1082 is provided in the middle of the two L-shaped card plates 1081, and the lifting plate 1082 has a "convex" through hole in the longitudinal direction. The lifting plug plate 1083 is clamped in the "convex" through hole to achieve the up and down adjustment of the lifting plate 1082 on the L-shaped card plate 1081. The lifting plate 1082 is welded to the channel steel on the purlin, and the height of the L-shaped card plate 1081 is equal to the sum of the thickness of the lifting plate 1082 and the height of the channel steel.

[0026] In a specific example, the lower purlin support 104 is a horse stool, and the lower main purlin 1 is connected to a pair of perforated channel steels 105 by bolts at the corresponding horse stool 104. Each perforated channel steel 105 has 2 rows and 2 columns of 4 bolt holes. During installation, ensure that the upper edge of the perforated channel steel 105 is not higher than the upper surface of the lower main purlin 1. The perforated channel steel 105 is welded to the lifting plate 1082 in the purlin adjuster 108, and the lifting plate 1082 is fixed to the L-shaped card plate 1081 through the lifting plug plate 1083. The thickness of both ends of the "convex" lifting plug plate 1083 is consistent with the height of the card slot on the L-shaped card plate 1081. When the lifting plug plate 1083 is inserted on the adjuster to connect the L-shaped card plate 1081 and the lifting plate 1082, the outer edge of the lifting plug plate 1083 remains flush with the outer edge of the L-shaped card plate 1081. A threaded hole is set on the convex column of the L-shaped card plate 1081, and the baffle 1084 is fixed to the L-shaped card plate 1081 through the threaded hole on the convex column, thereby ensuring that the plug plate 1083 will not fall off.

[0027] It should be noted that after the purlin adjuster is installed on the purlin, the L-shaped clamp on it is welded to the horse stool on the main steel truss. During the initial installation, the lifting plate is installed at the middle height of the L-shaped clamp to facilitate the later shape adjustment of the height. During splicing, the purlins are connected together through a steel core sleeve. One end of the steel core sleeve is welded to the purlin, and the other end is connected to the purlin with bolts.

[0028] In a specific example, when two corrugated bottom plates 2 are spliced, the troughs are overlapped together, and self-tapping screws are nailed to the lower main purlin 1 corresponding to the troughs. The air barrier layer 3 and the thermal insulation rock wool 4 are both flexible materials. During construction, the air barrier layer 3 is laid first, and then the thermal insulation rock wool 4 is laid thereon; the thermal insulation rock wool 4 has two layers, and the upper and lower layers of thermal insulation rock wool 4 are laid crosswise; the waterproof membrane 5 is overlapped at the joints when it is laid, and the waterproof membrane 5 at the bottom of the joints is nailed to the bottom corrugated bottom plate 2 with membrane nails, and the upper waterproof membrane 5 is ironed and connected to the lower waterproof membrane 5 with a hot ironing machine.

[0029] In order to ensure the reliability of the corrugated base plate connection, each trough is equipped with self-tapping screws; the two layers of thermal insulation rock wool can ensure the good thermal insulation of the roof system; the waterproof membrane can ensure the good waterproofness of the second waterproof layer.

[0030] In a specific example, the round tube column purlin support 101 located on the lower main purlin 1 passes through the air barrier layer 3, the thermal insulation rock wool 4 and the waterproof membrane 5, and a hole with a diameter similar to that of the round tube column is opened in the air barrier layer 3, the thermal insulation rock wool 4 and the waterproof membrane 5 at the round tube column purlin support 101. In order to ensure that there is no water seepage or leakage at the hole, a hole edge sealing membrane 51 is installed at the hole, and the edge sealing membrane 51 is ironed and connected to the waterproof membrane 5. The edge sealing membrane 51 is firmly fixed to the round tube of the round tube column purlin support 101 at the wrapped edge with a steel hoop 102, and the steel hoop 102 is composed of two hoop plates, and the two hoop plates are bolted; the upper main purlin 6 and the upper layer purlin 7 have different sizes, and the upper surface of the upper layer purlin 7 is kept flush when connected to the upper main purlin 6.

[0031] In a specific example, the upper main purlin 6 is also installed with a round tube column purlin support 101, and a non-hole channel steel 103 is welded to the corresponding round tube column purlin support 101. During welding, the upper edge of the non-hole channel steel 103 is not higher than the upper surface of the upper main purlin 6, and the non-hole channel steel 103 is welded to the same purlin adjuster 108 as that on the lower main purlin 1. After the purlin adjuster 108 is installed on the purlin, the L-shaped clamping plate 1081 on it is welded to the round tube column purlin support 101 on the lower main purlin 1, and the purlins are connected together through the steel core sleeve 103; a pair of connecting plates 61 are welded on the side of the upper main purlin 6, and each connecting plate 61 is provided with bolt holes. The purlin 7 is connected to the connecting plate 61 on the upper main purlin 6 through the connecting plate bolts 62. During installation, the upper main purlin 6 and the upper surface of the upper layer purlin 7 are kept on the same horizontal plane; the wind-resistant clip 81 is installed on the upper layer purlin 7 through self-tapping screws, and the spacing in the direction perpendicular to the plate ribs of the upright locking steel plate 8 is the spacing between the plate ribs, and the plate ribs of the upright locking steel plate 8 are buckled to the wind-resistant clip 81 at the joints of the upright locking steel plate 8. In order to ensure the tightness of the buckling, the plate ribs are tightly clamped on the wind-resistant clip 81 with a locking machine, and the rib top clip 82 is installed at the plate rib of the upright locking steel plate 8 corresponding to the wind-resistant clip 81. The rib top clip 82 is firmly mounted on the plate rib by bolts.

[0032] In a specific example, the wind-resistant clip 81 is installed on the upper main purlin 6 and the upper layer purlin 7 according to the spacing of the ribs of the upright lock-edge steel plate 8, and the ribs of the upright lock-edge steel plate 8 are respectively buckled to the wind-resistant clip 81. In order to ensure the watertightness of the first waterproof layer, the ribs are tightly clamped on the wind-resistant clip 81 with a lock-edge machine; the corrugated base plate 2 is fixed to the lower main purlin 1 by self-tapping screws, and the thermal insulation rock wool 4 is fixed to the corrugated base plate 2 together with the vapor barrier 3 by rock wool nails. The decorative panel 10 is connected to the partition keel 9 through the aluminum angle code at its upper edge and self-tapping screws, and a rubber pad is arranged under the aluminum angle code.

[0033] In summary, this embodiment effectively solves the assembly problem of the metal roof system at the joints between steel truss partitions by adopting the "step-by-step construction method", and effectively solves the thermal insulation, waterproofing, anti-seepage and wind-resistant problems of the metal roof system at the joints between partitions; this embodiment effectively solves the problem of unreliable connection between layers of the metal roof system caused by construction errors; this embodiment sets a new type of adjustable structural connection form for special connection positions of the metal roof system, which is convenient for adjusting the roof height and accurately finding the shape of the roof.

[0034] Example 2

[0035] In order to achieve the above purpose, this embodiment also provides a method for splicing large-span steel truss metal roof modules with integrated construction, including the following steps: S1: According to the reference control line, install the horse stool of the lower main purlin 1 on the partition steel truss 0, install the perforated channel steel 105 and the purlin adjuster 108 on the lower main purlin 1, and weld the purlin adjuster 108 to the horse stool. When installing the lower main purlin 1, reserve a certain construction width at the distance from the partition joint. Then, lay the vapor barrier 3, thermal insulation rock wool 4, waterproof membrane 5, upper main purlin 6, upper layer purlin 7, vertical lock edge steel plate 8, partition keel 9, and finally the decorative board 10 layer by layer. The edge of each layer reserves a certain construction width relative to the previous layer, and this construction method is called "step-like construction method". After the metal roof on the partition steel truss 0 is laid, it is lifted to the design elevation of the column top; S2: Complete the welding of the remaining steel trusses 0 at the joints between the partitions, and complete the installation and welding of the saddle, purlin adjuster 108, lower main purlin 1 and the round tube column purlin support 101 thereon at the joints. Under normal circumstances, the two lower main purlins 1 are connected together through the steel core sleeve 63. When there is a construction error and the purlins cannot be completely butted, first adjust the purlin adjuster 108 on the saddle to keep the upper surface of the purlin flush, then weld the purlin adapter 106 of the purlin connector to the end of the purlin, and then connect the purlin adapter 106 together through the round tube, and weld the lower part of the round tube to the support column 107, and the lower part of the support column 107 is welded to the main steel truss 0 through the saddle; S3: Lay the corrugated bottom plate 2, and buckle the corrugated bottom plates 2 in sequence at the joints between partitions along the direction of the lower main purlin 1, and buckle the crests together when connecting; lay the corrugated bottom plate 2 from one end of the joints between partitions to the other end in a direction perpendicular to the lower main purlin 1. If there is no construction error, the construction is normal. If there is a construction error, when the corrugated bottom plate 2 is laid to the edge of the other end, use a flat plate strip to connect the two corrugated bottom plates 2 at the crest with self-tapping screws; S4: Lay the vapor barrier layer 3 and the thermal insulation rock wool 4 on the corrugated bottom plate 2 at the partition joints. The vapor barrier layer 3 and the thermal insulation rock wool 4 are laid simultaneously. The upper and lower layers of the thermal insulation rock wool 4 are laid crosswise, and rock wool nails are driven into the diagonal parts of the thermal insulation rock wool 4. The lower part is nailed to the corrugated bottom plate 2; the waterproof roll 5 is laid on the upper part of the thermal insulation rock wool 4. The lower roll at the roll joint is nailed to the bottom corrugated bottom plate 2 with roll nails, and the upper roll is ironed and connected to the lower roll with a hot ironing machine; S5: When installing the upper main purlin 6, if there is no construction deviation, the two upper main purlins 6 are connected through the steel core sleeve 63. If there is a construction deviation, the purlin adjuster 108 is first adjusted to level the upper surface of the purlin, and then the upper main purlins 6 with construction deviation are connected together with the purlin connector. The upper purlin 7 is installed perpendicular to the side of the upper main purlin 6 through the connecting plate 61; S6: Install wind-resistant clips 81 and upright lock-edge steel plates 8 on the upper main purlins 6 and upper layer purlins 7 at the partition joints, and lay upright lock-edge steel plates 8 piece by piece from the partition edge to the joint in the direction perpendicular to the ribs of the upright lock-edge steel plates 8, until the interval in the joint interval is less than the width of one upright lock-edge steel plate 8, and stop laying. The remaining intervals are laid with upright lock-edge steel plates 85 with single-sided ribs, and the upright lock-edge steel plates 85 are nailed to the lower main purlins 1 at the intersection with self-tapping screws, and the intersection is sealed with sealant; along the ribs of the upright lock-edge steel plates 85, lay inward from the partition edge to the distance of 20 cm from the edge of the upright lock-edge steel plates 85, and stop laying. The remaining intervals are laid with flat slats, and the laying principle is that the flat slats are at the bottom and the upright lock-edge steel plates 85 are at the top, and the intersection is sealed with sealant; S7: Install the rib top clamp 82 on the upright seam steel plate 8 at the partition joint, install the keel adjuster 83 on the rib top clamp 82, and install the partition keel 9 on the keel adjuster 83 through the U-shaped clamp 84; when there is no construction deviation in the construction of the partition keel 9, the steel core sleeve 63 is used for butt connection. When there is a construction deviation, the keel adjuster 83 is first adjusted to keep the upper surface of the keel flush, and then the keel with construction error is connected by L-shaped connector 91; S8: Install the topmost decorative panel 10 at the partition joint, process the decorative panel 10 according to the size of the joint area, set aluminum corner brackets at the edge of the decorative panel 10, and connect the decorative panel 10 to the partition keel 9 thereunder through the aluminum corner brackets.

[0036] The splicing method of the integrated large-span steel truss metal roof module of this embodiment has the same advantages as the above-mentioned integrated large-span steel truss metal roof module over the prior art, which will not be repeated here.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A large-span steel truss metal roof module with integrated construction, involving a main steel truss (0), characterized in that: The invention comprises a lower main purlin (1), a corrugated bottom plate (2), an air barrier layer (3), thermal insulation rock wool (4), a waterproof roll (5), an upper main purlin (6), an upper layer purlin (7) and a vertical lock edge steel plate (8), wherein the lower main purlin (1) is installed on a main steel truss (0) at the lower part thereof, the lower main purlin (1) is connected to a lower purlin support (104) via a purlin adjuster (108), the lower purlin support (104) is installed on the main steel truss (0), a corrugated bottom plate (2) is laid on the upper part of the lower main purlin (1), an air barrier layer (3) is laid on the corrugated bottom plate (2), thermal insulation rock wool (4) is laid on the air barrier layer (3), a waterproof roll (5) is laid on the upper layer of the thermal insulation rock wool (4), and the waterproof roll (5) serves as the second waterproof layer of the entire roof system; the lower main purlin (1) is installed on the upper part of the lower main purlin (1), the air barrier layer (3) is laid on the corrugated bottom plate (2), the thermal insulation rock wool (4) is laid on the air barrier layer (3), the waterproof roll (5) is laid on the upper layer of the thermal insulation rock wool (4), and the waterproof roll (5) serves as the second waterproof layer of the entire roof system; A circular tube column purlin bracket (101) is installed on the main purlin (1) of the lower layer, a purlin adjuster (108) which is the same as the main purlin (1) of the lower layer is installed on the circular tube column purlin bracket (101), the main purlin (6) of the upper layer is fixed on the purlin adjuster (108) through a channel steel, a connecting plate (61) is installed on the side of the main purlin (6) of the upper layer, and the purlin (7) of the upper layer is installed on the upper layer through the connecting plate (61). The purlin (6) is provided with a wind-resistant clip (81) on the upper purlin (7); the vertical lock-edge steel plate (8) is fixed to the upper purlin (7) through the wind-resistant clip (81); the vertical lock-edge steel plate (8) serves as a first waterproof layer, wherein the corrugated bottom plate (2), the air barrier layer (3), the thermal insulation rock wool (4), the waterproof membrane (5) and the vertical lock-edge steel plate (8) are all arranged in a stepped shape from low to high.

2. The large-span steel truss metal roof module of integrated construction according to claim 1 is characterized in that: It also includes a grid keel (9) and a decorative panel (10), wherein a rib top clamp (82) is installed on the upright lock-edge steel plate (8), a keel adjuster (83) is welded to the rib top clamp (82), a U-shaped clamp (84) is installed on the keel adjuster (83), the U-shaped clamp (84) is welded to the grid keel (9), and the decorative panel (10) is installed on the grid keel (9), wherein the upright lock-edge steel plate (8) and the decorative panel (10) are also stepped.

3. The large-span steel truss metal roof module of integrated construction according to claim 2 is characterized in that: The keel adjuster (83) comprises a U-shaped card plate (8301), a grooved support plate (8302) and a self-weight pin shaft (8303). The U-shaped card plate (8301) has large-sized holes on two vertical plates, and small-sized holes are opened on the sides of the vertical plates. "Ears" with holes are arranged on both sides of the grooved support plate (8302). The "ears" are stuck in the large-sized holes to achieve the up and down adjustment of the grooved support plate (8302) along the U-shaped card plate (8301). The self-weight pin shaft (8303) is responsible for connecting the U-shaped card plate (8301) and the grooved support plate (8302). The grooved support plate (8302) is welded to the U-shaped clip (84) on the keel. The height inside the U-shaped card plate (8301) is equal to the sum of the thickness of the web of the grooved support plate (8302) and the height of the U-shaped clip (84).

4. The large-span steel truss metal roof module of integrated construction according to claim 1 is characterized in that: The purlin adjuster (108) comprises two L-shaped card plates (1081), the L-shaped card plates (1081) have a through hole in the middle to reserve a card slot, the structure adjacent to the card slot is a convex column, a lifting plate (1082) is provided between the two L-shaped card plates (1081), the lifting plate (1082) has a "convex"-shaped through hole in the longitudinal direction, the lifting plug plate (1083) is clamped in the "convex"-shaped through hole to achieve the lifting plate (1082) on the L-shaped card plate (1081) Up and down adjustment, the lifting plate (1082) is welded to the channel steel on the purlin, and the height of the L-shaped card plate (1081) is equal to the sum of the thickness of the lifting plate (1082) and the height of the channel steel.

5. The large-span steel truss metal roof module of integrated construction according to claim 4 is characterized in that: The lower purlin support (104) is a horse stool. The lower main purlin (1) is connected to a pair of perforated channel steels (105) by bolts at the position corresponding to the horse stool (104). Each perforated channel steel (105) has 2 rows and 2 columns of 4 bolt holes. During installation, ensure that the upper edge of the perforated channel steel (105) is not higher than the upper surface of the lower main purlin (1). The perforated channel steel (105) is welded to the lifting plate (1082) in the purlin adjuster (108). The lifting plate (1082) is fixed to the L-shaped card plate (1081) through the lifting plug plate (1083). The thickness of both ends of the "convex" lifting plug plate (1083) is consistent with the height of the card slot on the L-shaped card plate (1081). When the lifting plug plate (1083) is inserted into the adjuster to connect the L-shaped card plate (1081) and the lifting plate (1082), the outer edge of the lifting plug plate (1083) is kept flush with the outer edge of the L-shaped card plate (1081). The convex column of the L-shaped card plate (1081) is provided with a threaded hole, and the baffle (1084) is fixed to the L-shaped card plate (1081) through the threaded hole on the convex column, thereby ensuring that the plug plate (1083) will not fall off.

6. The large-span steel truss metal roof module of integrated construction according to claim 1 is characterized in that: When two corrugated bottom plates (2) are spliced, the troughs are overlapped together, and the self-tapping screws are nailed to the lower main purlin (1) corresponding to the troughs. The air barrier layer (3) and the thermal insulation rock wool (4) are both flexible materials. During construction, the air barrier layer (3) is laid first, and then the thermal insulation rock wool (4) thereon is laid; the thermal insulation rock wool (4) has two layers, and the upper and lower layers of thermal insulation rock wool (4) are laid crosswise; when the waterproof roll material (5) is laid, the joints are overlapped, and the lower waterproof roll material (5) at the joints is nailed to the bottom corrugated bottom plate (2) with roll nails, and the upper waterproof roll material (5) is ironed and connected to the lower waterproof roll material (5) with a hot ironing machine.

7. The large-span steel truss metal roof module of integrated construction according to claim 1 is characterized in that: The circular tube column purlin support (101) located on the lower main purlin (1) passes through the air barrier layer (3), the thermal insulation rock wool (4) and the waterproof roll (5); a hole with a diameter similar to that of the circular tube column is opened in the air barrier layer (3), the thermal insulation rock wool (4) and the waterproof roll (5) at the circular tube column purlin support (101); a hole edge sealing roll (51) is installed at the hole; the edge sealing roll (51) is ironed and connected to the waterproof roll (5); a steel clamp (102) is used to firmly fix the edge sealing roll (51) on the circular tube of the circular tube column purlin support (101) at the wrapped edge; the steel clamp (102) is composed of two hoop plates, and the two hoop plates are bolted; the upper main purlin (6) and the upper layer purlin (7) have different sizes, and the upper surface of the upper layer purlin (7) is kept flush when connected to the upper main purlin (6).

8. The large-span steel truss metal roof module of integrated construction according to claim 1 is characterized in that: The upper main purlin (6) is also provided with a round tube column purlin support (101), and a non-perforated channel steel (103) is welded to the corresponding round tube column purlin support (101). During welding, the upper edge of the non-perforated channel steel (103) is not higher than the upper surface of the upper main purlin (6). The non-perforated channel steel (103) is welded to a purlin adjuster (108) which is the same as that on the lower main purlin (1). After the purlin adjuster (108) is installed on the purlin, the L-shaped clamping plate (1081) on it is welded to the round tube column purlin support (101) on the lower main purlin (1), and the purlins are connected together through the steel core sleeve (103); a pair of connecting plates (61) are welded to the side of the upper main purlin (6), and each connecting plate (61) is provided with a bolt hole. The secondary purlin (7) is connected to the connecting plate (61) on the upper main purlin (6) by means of connecting plate bolts (62). During installation, the upper main purlin (6) and the upper layer purlin (7) are kept on the same horizontal plane. The wind-resistant clip (81) is installed on the upper layer purlin (7) by means of self-tapping screws. The spacing in the direction perpendicular to the plate ribs of the vertical locking steel plate (8) is the spacing between the plate ribs. The plate ribs of the vertical locking steel plate (8) are buckled onto the wind-resistant clip (81) at the joints of the vertical locking steel plate (8). The plate ribs are tightly clamped onto the wind-resistant clip (81) by means of a locking machine. A rib top clip (82) is installed at the plate ribs of the vertical locking steel plate (8) corresponding to the wind-resistant clip (81). The rib top clip (82) is firmly mounted on the plate ribs by means of bolts.

9. The large-span steel truss metal roof module of integrated construction according to claim 1, characterized in that: The wind-resistant clips (81) are installed on the upper main purlins (6) and the upper layer purlins (7) according to the spacing of the ribs of the vertical lock-edge steel plates (8); the ribs of the vertical lock-edge steel plates (8) are respectively buckled on the wind-resistant clips (81); the ribs are tightly clamped on the wind-resistant clips (81) by a lock-edge machine; the corrugated bottom plate (2) is fixed to the lower main purlins (1) by self-tapping screws; the thermal insulation rock wool (4) is fixed to the corrugated bottom plate (2) together with the vapor barrier (3) by rock wool nails; the decorative plate (10) is connected to the partition keel (9) by aluminum angle brackets at its upper edge and by self-tapping screws; and rubber pads are arranged under the aluminum angle brackets.

10. A method for splicing large-span steel truss metal roof modules of integrated construction according to any one of claims 1 to 9, characterized in that: The process includes the following steps: S1: According to the reference control line, the horse stool of the lower main purlin (1) is installed on the partition steel truss (0), the perforated channel steel (105) and the purlin adjuster (108) are installed on the lower main purlin (1), and the purlin adjuster (108) is welded to the horse stool. When installing the lower main purlin (1), a certain construction width is reserved at the distance from the partition joint. Then, the vapor barrier (3), thermal insulation rock wool (4), waterproof membrane (5), upper main purlin (6), upper layer purlin (7), vertical lock edge steel plate (8), partition keel (9), and finally the decorative plate (10) are laid layer by layer in order. A certain construction width is reserved for the edge of each layer relative to the previous layer. This construction method is called "step-like construction method". After the metal roof on the partition steel truss (0) is laid, it is lifted to the design elevation of the column top; S2: Complete the welding of the remaining steel trusses (0) at the joints between the partitions, and complete the installation and welding of the saddle, purlin adjuster (108), the lower main purlin (1) and the round tube column purlin support (101) thereon at the joints. Under normal circumstances, the two lower main purlins (1) are connected together through the steel core sleeve (63). When there is a construction error and the purlins cannot be completely butted, first adjust the purlin adjuster (108) on the saddle to keep the upper surface of the purlin flush, then weld the purlin adapter (106) of the purlin connector to the end of the purlin, and then connect the purlin adapter (106) together through the round tube, the lower part of the round tube is welded to the support column (107), and the lower part of the support column (107) is welded to the main steel truss (0) through the saddle; S3: Laying the corrugated bottom plate (2), buckling the corrugated bottom plates (2) in sequence at the joints between the partitions along the direction of the lower main purlin (1), and buckling the crests together when connecting; laying the corrugated bottom plate (2) from one end of the joints between the partitions to the other end in a direction perpendicular to the lower main purlin (1). If there is no construction error, normal construction is performed. If there is a construction error, when the corrugated bottom plate (2) is laid to the edge of the other end, two pieces of corrugated bottom plates (2) are connected at the crests with self-tapping screws using flat strips; S4: Laying a vapor barrier layer (3) and thermal insulation rock wool (4) on the corrugated bottom plate (2) at the partition joints, the vapor barrier layer (3) and the thermal insulation rock wool (4) are laid simultaneously, the thermal insulation rock wool (4) is laid crosswise in the upper and lower layers, and rock wool nails are driven into the diagonal parts of the thermal insulation rock wool (4), and the lower part is nailed to the corrugated bottom plate (2); laying a waterproof roll (5) on the upper part of the thermal insulation rock wool (4), and nailing the lower roll at the roll joint to the bottom corrugated bottom plate (2) with roll nails, and the upper roll is ironed and connected to the lower roll with a hot ironing machine; S5: When installing the upper main purlin (6), if there is no construction deviation, the two upper main purlins (6) are connected through the steel core sleeve (63); if there is a construction deviation, the purlin adjuster (108) is first adjusted to level the upper surface of the purlin, and then the upper main purlins (6) with the construction deviation are connected together using the purlin connector, and the upper purlin (7) is installed perpendicular to the side of the upper main purlin (6) through the connecting plate (61); S6: Install wind-resistant clips (81) and standing seam steel plates (8) on the upper main purlins (6) and upper layer purlins (7) at the partition joints, and lay the standing seam steel plates (8) piece by piece from the partition edge to the joint in a direction perpendicular to the plate ribs of the standing seam steel plates (8), until the intervals in the joint section are less than the width of one standing seam steel plate (8), and the remaining intervals are laid using standing seam steel plates (85) with single-side plate ribs. At the intersection, the vertical lock-edge steel plate (85) is nailed to the lower main purlin (1) with self-tapping screws, and the intersection is sealed with a sealant; along the rib direction of the vertical lock-edge steel plate (85), the paving is stopped from the edge of the partition to the edge of the vertical lock-edge steel plate (85) at a distance of 20 cm, and the remaining intervals are paved with flat slats. The paving principle is that the flat slats are at the bottom and the vertical lock-edge steel plate (85) is at the top, and the intersection is sealed with a sealant; S7: Install a rib top clamp (82) on the standing seam steel plate (8) at the partition joint, install a keel adjuster (83) on the rib top clamp (82), and install the partition keel (9) on the keel adjuster (83) through a U-shaped clamp (84); when there is no construction deviation in the construction of the partition keel (9), use the steel core sleeve (63) for butt connection; when there is a construction deviation, first adjust the keel adjuster (83) to keep the upper surface of the keel flush, and then use the L-shaped connector (91) to connect the keel with the construction error; S8: installing the topmost decorative panel (10) at the partition joint, processing the decorative panel (10) in size according to the size of the joint area, setting aluminum corner brackets at the edges of the decorative panel (10), and connecting the decorative panel (10) to the partition keel (9) thereunder via the aluminum corner brackets.

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