Reinforcing type metal roof node structure between construction partitions and construction method of reinforcing type metal roof node structure

Abstract

The reinforced metal roof node structure comprises purlines and additional purlines, the two additional purlines are arranged in the construction partition of a steel roof, bottom plates are arranged on the purlines and the additional purlines, the bottom plates are broken at the positions of the additional purlines, and the bottom plates exceed the additional purlines to form cantilever sections. The heat preservation rock wool and the waterproof coiled material are sequentially arranged on the bottom plate, the heat preservation rock wool and the waterproof coiled material are also disconnected at the positions of the additional purlines, the thickness of the position, corresponding to the position between the additional purlines, of the heat preservation rock wool is reduced, a groove is formed, and the after-loading rock wool and the after-loading waterproof coiled material are laid in the groove. Metal roofs in the construction subareas are constructed along with the steel roofs, and only one span of metal roofs at the boundary of the construction subareas is reserved for construction after the nodes are adopted. The problems that due to large relative deformation between steel roof construction partitions, metal roofs at boundaries are difficult to install, and the waterproof and heat preservation effects are poor can be solved. The joint is simple in structure, and the construction method is convenient.

Description

Technical Field

[0001] The invention relates to the technical field of building steel structure and metal roof construction, and more specifically to a reinforced metal roof node structure between construction sections and a construction method thereof. Background Art

[0002] Metal roofs usually include purlins, purlins, base plates, vapor barriers, thermal insulation rock wool, waterproofing membranes, etc. Each structural layer has a weak ability to adapt to deformation. When the steel roof is constructed in sections, the large relative deformation between the construction sections may lead to poor installation quality of the base plate, thermal insulation rock wool and waterproofing membranes, or even make them impossible to install, which will damage the waterproofing and thermal insulation functions of the metal roof.

[0003] In order to solve the influence of relative deformation between steel roof construction sections on the construction accuracy of metal roof at the boundary, the following method is often used: the metal roof is installed after the overall construction of the roof is completed and the structural deformation tends to be stable. At the same time, the larger relative deformation between the sections is adapted by adjusting the purlin support height on site, enlarging the bolt hole diameter at the end of the purlin, and adjusting the length of the bottom plate.

[0004] When the above conventional method is adopted, the metal roof is introduced late and the overall construction period is long. The on-site changes of purlins, purlins and base plates are large, the construction efficiency is low and the cost is high. The on-site changes become the weak points of the waterproof and thermal insulation functions of the metal roof, and the overall quality is uncontrollable. Summary of the invention

[0005] The present invention provides a reinforced metal roof node structure between construction partitions and a construction method thereof, which can effectively solve the problems of relatively large deformation between existing steel roof construction partitions, resulting in difficulty in installing the metal roof at the boundary, poor waterproof and thermal insulation effects, large amount of on-site changes, late metal roofing, and long overall construction period. The node structure is simple and the construction method is convenient.

[0006] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a reinforced metal roof node structure between construction sections, including purlins and additional purlins, the additional purlins are arranged in two rows between the steel roof construction sections, and a bottom plate is arranged on the purlins and the additional purlins, the bottom plate is disconnected at the additional purlins, and the bottom plate exceeds the additional purlins to form a cantilevered section, and thermal insulation rock wool and waterproof membrane are sequentially arranged on the bottom plate, the thermal insulation rock wool and waterproof membrane are also disconnected at the additional purlins, and the thickness of the thermal insulation rock wool is reduced at the position corresponding to the additional purlins to form a groove, and the groove is laid with post-installed rock wool and post-installed waterproof membrane.

[0007] Furthermore, a blocking plate is provided below the disconnected portion of the bottom plate, and the blocking plate is fixedly connected to the bottom plates on both sides. The blocking plate is bent in the middle to form a bulge, and the relative deformation between the partitions is adapted by the deformation of the bulge.

[0008] Furthermore, the groove is formed by reducing the thickness of the thermal insulation rock wool between the additional purlins to 1 / 2.

[0009] Furthermore, the post-installed waterproof membrane covers the post-installed rock wool and the thermal insulation rock wool installed in the construction zones on both sides at the same time, and is overlapped on the waterproof membrane installed in the construction zones on both sides to ensure water tightness.

[0010] Furthermore, the distance between the two additional purlins is 400 mm, and the specific size can be adjusted according to the specifications of the base plate.

[0011] Furthermore, the size of the bottom plate disconnection gap is determined according to the relative deformation value between the construction sections, and the gap is used to adapt to the relative deformation between the sections.

[0012] The construction method of the reinforced metal roof node structure between the construction sections mainly includes the following steps: (1) According to the theoretical relative deformation difference between the construction zones, determine the gap between the bottom plate and the size of the bending protrusion of the plugging plate at the boundary, and guide the deepening and processing; (2) The metal roof inside the construction zone is constructed together with the steel roof, and only one span of metal roof at the boundary is reserved for construction; (3) After the steel roof construction partitions are connected, install additional purlins and base plates; (4) Install the plugging plate at the disconnected part of the bottom plate, with the convex part of the plugging plate facing downward, connect the plugging plate and the bottom plate with blind rivets, and then fix the bottom plate and the plugging plate to the additional purlins with self-tapping screws; (5) Insulation rock wool and waterproof membrane are laid from bottom to top in the cantilevered area of ​​the base plate, and the insulation rock wool forms a groove of 1 / 2 design thickness between the additional purlins; (6) In the thermal insulation rock wool groove, lay the post-installed rock wool and post-installed waterproof membrane from bottom to top. The post-installed waterproof membrane needs to overlap the waterproof membrane installed on both sides of the construction partition and cover the membrane nails; (7) The later installed waterproof membrane and the already constructed waterproof membrane are connected by hot air welding to form a closed waterproof and thermal insulation layer.

[0013] In summary, the present invention has the following beneficial effects: (1) The node of the present invention can adapt to the large relative deformation between construction partitions, effectively solving the problems of difficult installation of metal roofs at the boundaries and poor waterproofing and thermal insulation effects; (2) The node of the present invention can avoid a large amount of dismantling and modification work of metal roof components such as purlin brackets, purlins and bottom plates on site. The node structure is simple and the construction is convenient, which can greatly improve the construction efficiency and save costs; (3) The method of the present invention can allow the metal roof to be constructed in advance, leaving only the local metal roof at the boundary for later repair. This can significantly shorten the overall construction period. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is an overall side view of the node of the present invention; Figure 2 It is a schematic diagram of a gap node of the present invention; Figure 3 This is a schematic diagram of a post-installation node of the present invention; Figure 4 This is installation step 1 of the installation method of the present invention; Figure 5 This is installation step 2 of the installation method of the present invention; Figure 6 This is installation step three of the installation method of the present invention.

[0015] Marking instructions: 1. Purlin; 2. Additional purlin; 3. Base plate; 4. Sealing plate; 5. Self-tapping screws; 6. Blind rivets; 7. Insulating rock wool; 8. Post-installed rock wool; 9. Rock wool nails; 10. Post-installed rock wool nails; 11. Waterproof membrane; 12. Post-installed waterproof membrane; 13. Membrane nails. DETAILED DESCRIPTION

[0016] The following is combined with Figures 1 to 6 The specific implementation methods of the reinforced metal roof node structure between construction zones and the construction method of the present invention are further described in detail.

[0017] A reinforced metal roof node structure between construction partitions includes purlins 1, additional purlins 2, bottom plates 3, blocking plates 4, self-tapping screws 5, core-pulling rivets 6, thermal insulation rock wool 7, post-installed rock wool 8, rock wool nails 9, post-installed rock wool nails 10, waterproofing coiled materials 11, post-installed waterproofing coiled materials 12, and coiled material nails 13. The metal roof inside the construction partition is constructed together with the steel roof, and only one span of the metal roof at the boundary is reserved for post-construction. The additional purlins 2 are densely arranged on the basis of the original design arrangement spacing of the purlins 1, and are arranged in the construction partitions of the steel roof or in the large deformation area of ​​the integrated construction. The bottom plate 3, thermal insulation rock wool 7 and waterproofing coiled materials 11 are disconnected at the additional purlin 2, and the cantilever length is 100 mm. The gap at the disconnection is about 20 mm, and the size of the gap can be adjusted according to the deformation requirements. The bottom plate 3 is laid on the purlins 1 and the additional purlins 2, and connected by self-tapping screws 5. The additional base plate 3 is laid on the cantilevered section of the base plate 3, overlapping by 150mm on one side, and connected by blind rivets 6. The thermal insulation rock wool 7 is laid on the base plate 3, and the waterproof membrane 11 is laid on the thermal insulation rock wool 7, and wrapped and closed at the cantilevered end, and both are connected by rock wool nails 9. The thickness of the thermal insulation rock wool 7 in the cantilevered area of ​​the base plate 3 is reduced to 1 / 2 of the designed thickness, forming a groove, and the thickness of the post-installed rock wool 8 is also 1 / 2 of the designed thickness, which is laid on the thermal insulation rock wool 7 and waterproof membrane 11 in the groove. The post-installed waterproof membrane 12 is laid on top of the thermal insulation rock wool 7 and the post-installed rock wool 8, and fixed by post-installed rock wool nails 10.

[0018] A construction method for a reinforced metal roof node structure between construction zones, comprising the following steps: (1) According to the theoretical relative deformation difference between the construction zones, determine the disconnection gap of the bottom plate 3 and the bending protrusion size of the sealing plate 4 at the boundary, and guide the deepening and processing.

[0019] (2) The metal roof inside the construction area is constructed together with the steel roof, and only one span of metal roof is reserved at the boundary for later construction.

[0020] (3) After the steel roof construction partitions are connected, install purlin 1, additional purlin 2 and base plate 3.

[0021] (4) Install the plugging plate 4 at the disconnected part of the bottom plate 3, with the plugging plate 4 protruding downward. Use blind rivets 6 to connect the plugging plate 4 and the bottom plate 3, and then use self-tapping screws 5 to fix the bottom plate 3 and the plugging plate 4 on the additional purlin 2 at the same time.

[0022] (5) Insulating rock wool 7 and waterproof membrane 11 are laid from bottom to top in the cantilevered area of ​​the base plate 3. The insulating rock wool 7 forms a groove of 1 / 2 of the design thickness between the additional purlins 2.

[0023] (6) In the groove, lay the post-installed rock wool 8 and post-installed waterproofing membrane 12 from bottom to top. The post-installed waterproofing membrane 12 needs to overlap the waterproofing membrane 11 installed on both sides of the construction partition and cover the membrane nails 13.

[0024] (7) The later installed waterproof membrane 12 and the already constructed waterproof membrane 11 are connected by hot air welding to form a closed waterproof and thermal insulation layer.

[0025] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A reinforced metal roof node structure between construction zones, characterized in that: It includes purlins and additional purlins. The additional purlins are arranged in two rows between the steel roof construction sections. A bottom plate is arranged on the purlins and the additional purlins. The bottom plate is disconnected at the additional purlins, and the bottom plate exceeds the additional purlins to form a cantilevered section. Insulating rock wool and waterproof membranes are arranged on the bottom plate in sequence. The insulating rock wool and waterproof membranes are also disconnected at the additional purlins. The thickness of the insulating rock wool is reduced at the position corresponding to the additional purlins to form a groove, and the groove is laid with post-installed rock wool and post-installed waterproof membranes.

2. The reinforced metal roof node structure between construction zones according to claim 1 is characterized by: A blocking plate is provided below the disconnected portion of the bottom plate, and the blocking plate is fixedly connected to the bottom plates at both sides. The blocking plate is bent in the middle to form a bulge, and the relative deformation between the partitions is adapted by the deformation of the bulge.

3. The reinforced metal roof node structure between construction zones according to claim 1 is characterized by: The groove is formed by reducing the thickness of the thermal insulation rock wool between the additional purlins to 1 / 2.

4. The reinforced metal roof node structure between construction zones according to claim 1 is characterized by: The post-installed waterproof membrane covers the post-installed rock wool and the thermal insulation rock wool installed in the construction zones on both sides at the same time, and is overlapped on the waterproof membrane installed in the construction zones on both sides to ensure water tightness.

5. The reinforced metal roof node structure between construction zones according to claim 1 is characterized by: The distance between the two additional purlins is 400mm, and the specific size can be adjusted according to the specifications of the base plate.

6. The reinforced metal roof node structure between construction zones according to claim 1 is characterized by: The size of the bottom plate disconnection gap is determined according to the relative deformation value between the construction partitions, and the gap is used to adapt to the relative deformation between the partitions.

7. The construction method of the reinforced metal roof node structure between construction zones according to any one of claims 1 to 6, characterized in that: The main steps include: (1) According to the theoretical relative deformation difference between the construction zones, determine the gap between the bottom plate and the size of the bending protrusion of the plugging plate at the boundary, and guide the deepening and processing; (2) The metal roof inside the construction zone is constructed together with the steel roof, and only one span of metal roof at the boundary is reserved for construction; (3) After the steel roof construction partitions are connected, install additional purlins and base plates; (4) Install the plugging plate at the disconnected part of the bottom plate, with the convex part of the plugging plate facing downward, connect the plugging plate and the bottom plate with blind rivets, and then fix the bottom plate and the plugging plate to the additional purlins with self-tapping screws; (5) Insulation rock wool and waterproof membrane are laid from bottom to top in the cantilevered area of ​​the base plate, and the insulation rock wool forms a groove of 1 / 2 design thickness between the additional purlins; (6) In the thermal insulation rock wool groove, lay the post-installed rock wool and post-installed waterproof membrane from bottom to top. The post-installed waterproof membrane needs to overlap the waterproof membrane installed on both sides of the construction partition and cover the membrane nails; (7) The later installed waterproof membrane and the already constructed waterproof membrane are connected by hot air welding to form a closed waterproof and thermal insulation layer.

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