CN116378288A - A new purlin-free composite metal roof system and its construction method - Google Patents

Abstract

The invention relates to a novel purlin-free composite metal roof system and its construction method, comprising a roof panel assembly and a support beam assembly, the roof panel assembly is installed on the support beam assembly, the support beam assembly includes a main beam, and several beams are installed on the main beam The secondary beams parallel to each other; the roof panel assembly includes several roof panels installed on the secondary beams, the roof panels are overlapped with each other, a waterproof coil layer is provided at the lap joint, and a waterproof roll is provided above the roof panel assembly Material layer two, waterproof coiled material layer one is located in the interior of waterproof coiled material layer two. The invention has lighter weight, fewer components, lower material cost, shortened construction period, high installation efficiency, and reduced construction cost. On the premise of satisfying the use function, it realizes a higher bearing capacity and greatly improves the performance of the roof. cost-effective.

Description

A new purlin-free composite metal roof system and its construction method

technical field

The invention relates to a metal roof system and a construction method thereof, in particular to a purlin-free metal roof system and a construction method thereof, and belongs to the technical field of industrial building design and construction.

Background technique

The roof of the building includes metal roof, concrete roof, tile roof, etc., but the metal roof is limited by the forming rigidity and bearing capacity of the profiled steel plate, so basically the purlins with small spacing are used on the main structure (the spacing is about 1.2- 1.5m), and then lay metal roof panels, insulation cotton, waterproof membrane and other roofing systems on the purlins in sequence.

However, this traditional method has a great impact on construction, especially in industrial plants, where a large number of tie rods, tie bars and supports are installed between the rigid frames to form a stable system, and then a large number of purlins are installed on the roof and walls. The workload of procurement, processing and on-site installation is huge, and the cost of construction is relatively high. Moreover, there are certain requirements on the delivery and installation sequence of the components, which reduces the construction efficiency. At the same time, the traditional metal roof system is composed of multi-layer structures and needs to be installed through at least 8 processes. During the installation process, the quality requirements of construction workers are very high. After forming, it is not easy to inspect, and there are hidden dangers such as water leakage and lack of heat preservation. More importantly, if the metal roof panel adopts common composite panels on the market, one side of the longitudinal lap joint will be in a cantilevered state during laying, and the rigidity of the longitudinal lap joints between two adjacent composite panels will be inconsistent, resulting in joints. The joints often show poor deformation or uncoordinated deformation after being stressed, and there is a hidden danger of water leakage.

Based on this, the present invention is proposed.

Contents of the invention

Aiming at the above-mentioned technical problems of the prior art, the object of the present invention is to provide a novel purlin-free composite metal roof system and its construction method which greatly saves the cycle of procurement, processing and installation, which can not only shorten the overall construction cycle, but also improve the construction efficiency. quality. The flatness of the roof panel is good, and the stability of the plate end is high. When the waterproof membrane layer is laid, the membrane and the lap joint have a high degree of fit, and it is not easy to loosen, which greatly improves the waterproof performance.

To achieve the above object, the present invention is achieved through the following technical solutions:

A new purlin-free composite metal roof system, comprising a roof panel assembly and a support beam assembly, the roof panel assembly is installed on the support beam assembly, the support beam assembly includes a main beam, and several beams are installed on the main beam secondary beams parallel to each other; the roof panel assembly includes several roof panels installed on the secondary beams, the roof panels are overlapped with each other, and the lap joints are provided with a waterproof coiled material layer 1, and the roof panel assembly A waterproof coiled material layer 2 is arranged above the waterproof coiled material layer, and the waterproof coiled material layer 1 is located inside the waterproof coiled material layer 2; the roof panel includes an upper layer board, a middle core board and a lower layer board, and the upper layer board and the lower layer board are both It is a metal plate, and the middle core board is a rock wool board or a glass wool board; a recess is provided above the roof panel, and a lower protrusion is provided under the roof board, and the lower protrusion is located in the concave directly below.

The two ends of the roof panel are respectively a male side and a female side, the male side is provided with a notch, an extension section is provided above the notch, a protrusion is provided on the female side, and a protrusion is provided above the protrusion There is a hollow section, and the overlapping part is that the protrusion enters the notch, and the extension section enters the hollow section.

The two ends of the roof panel are respectively a male side and a female side, the male side is provided with an upper extension section, the lower portion of the upper extension section is a lower hollow section, and the female side is provided with a lower extension section, and the lower extension section is provided with the lower section. The upper part of the extension section is the upper hollow section, and the overlapping part is that the upper extension section enters the upper hollow section, and the lower extension section enters the lower hollow section.

There are fillers in the lower protrusion.

The two ends of the first waterproof membrane layer are respectively located on the side walls of the two recesses.

Structural nails are driven into the lower recess, and the roof panel and the secondary beam are fixed by the structural nails.

The webs of the secondary beams are honeycomb webs or corrugated webs, and the distance between every two secondary beams is 2-8m, and the distances between the secondary beams are all equal.

A construction method of a new purlin-free composite metal roof system, comprising the following steps: (1) setting up secondary beams with a spacing of 2m-8m along the roof drainage direction; (2) installing the main beam on the main structure, and placing the secondary beams (3) Lay the roof slab on the secondary beam, and the length direction of the roof slab is the drainage direction; (4) Open the concave part of the roof Insert the structural nails, and fix the roof panel and the secondary beam through the structural nails; (5) Lay the first waterproof membrane layer at the lap joint of the roof panels, and the laying method of the first waterproof membrane layer is self-adhesive laying; (6) The second layer of waterproof coiled material is laid on the top of the roof panel assembly, the first layer of waterproof coiled material is located below the second layer of waterproof coiled material, and the laying method of the second layer of waterproof coiled material is full-adhesive laying.

When the short sides of the roof panels are docked, the docking port is arranged on the secondary beam, and the thermal insulation material is arranged in the docking port.

The novel purlin-free composite metal roof system and its construction method of the present invention have the following beneficial effects:

1. The present invention combines composite roof panels and steel beams for the entire roof system, cancels the traditional purlin flexible roof system, and uses economical and beautiful honeycomb secondary beams or corrugated secondary beams, compared with the combination of purlins and bottom plates , the roof system is lighter in weight, uses fewer components, lower material costs, shortens the construction period, has high installation efficiency, and reduces construction costs. Improve the cost performance of the roof.

2. The roof panel in the present invention is mainly used as a load-bearing plate, and its two ends are effectively fixed on the secondary beam by structural nails. The span can be two to eight meters. The roof system has excellent bearing capacity and extremely Strong wind resistance performance. In addition, after the roof panel is overlapped with the roof panel, the first layer of waterproof coiled material is laid. The roof panel itself has excellent waterproof performance, and the second layer of waterproof coiled material is laid on the top of the first waterproof coiled material layer to further improve the waterproof performance. , systematically solve the hidden danger of water leakage in industrial buildings.

3. While the thickness of the waterproof coiled material layer can be selected according to the needs, compared with the traditional flexible roofing method, the present invention only needs 50% of the screw consumption, which greatly improves its economy and improves the construction efficiency to a certain extent .

4. Combining the load-bearing function and fixed function of the roof panel into one, reduces the construction steps of the roof, greatly saves labor in the roof laying process, and improves the construction efficiency.

5. The thickness and height of the roof panel in the present invention are designed reasonably, and the two ends are reinforced by the male side and the female side to avoid excessive deformation of the panel during the construction process. This design can ensure construction safety and prevent the connection of the panels. Scratch yourself.

6. In the present invention, the lower slab of the roof panel is stiffened to stabilize the shape of the slab and improve the bearing capacity of the slab. The plate type in the prior art is basically cantilevered at one end, without a supporting stress point, and a supporting point at the other end. In the present invention, a lower thrust force is designed as a force supporting point on the lower plate to prevent the plate from being damaged due to overlap after splicing. The unevenness of the slab surface caused by the stress ensures sufficient rigidity of the roof slab and further improves its bearing capacity. The filler at the lower protrusion is polyurethane or other fillers, and the stability of the board end is higher.

7. The flatness of the roof panel in the present invention is good. Not only can the position of the structural nails be accurately positioned in the lower recess, but also the structural nails can be driven into the lower recess to avoid the protrusion of the nail head from destroying the flatness of the overall board surface, and the protrusion The part is relatively sharp, which is easy to pierce the waterproof membrane layer, so it also avoids affecting the laying of the waterproof membrane layer. When laying the waterproof membrane layer, the waterproof membrane layer and the lap seam have a higher degree of fit, are not easy to loosen, and are less likely to leak.

8. The roof panel in the present invention adopts the waterproof design of the male side and the female side. When the two boards are overlapped, the male side and the female side are buckled together, and the extended section of the male side can cover the hollow section of the female side, which can effectively To achieve the continuity of heat preservation, and leave enough space at the lap joint, so that when the end faces of the two plates are tightened, the male side and the female side can be fastened smoothly and conveniently, so as not to affect the interference fit between the plates , to achieve a tighter lap effect.

Description of drawings

Fig. 1 is the structural representation of embodiment 1;

Fig. 2 is a schematic diagram of the installation position relationship between the main beam, the secondary beam and the roof panel in Embodiment 1;

Fig. 3 is the schematic diagram of the installation relation of secondary beam and roof panel of embodiment 1;

Fig. 4 is an enlarged view of the structure of part A in Fig. 3;

Fig. 5 is the schematic diagram of the overlapping relationship between the roof panels of embodiment 1;

Fig. 6 is the schematic diagram of the common side structure of the roof panel of embodiment 1;

Fig. 7 is a schematic diagram of the mother side structure of embodiment 1;

Fig. 8 is the structural representation of the roof panel in embodiment 1;

Fig. 9 is a schematic diagram of the overlapping relationship between the roof panels of Embodiment 2;

Fig. 10 is the structural representation of the roof panel in embodiment 2;

Among them, 1 is the main beam, 2 is the secondary beam, 3 is the roof panel, 31 is the male side, 311 is the notch, 312 is the extension section, 313 is the upper extension section, 314 is the lower hollow section, 32 is the female side, 321 322 is the hollow section, 323 is the upper hollow section, 324 is the lower extension section, 33 is the lower recess, 34 is the lower protrusion, 35 is the upper plate, 36 is the middle core plate, 37 is the lower plate, 38 is a filler, 4 is a waterproof coiled material layer one, 5 is a waterproof coiled material layer two, and 6 is a structural nail.

Detailed ways

The present invention will be further described below in conjunction with specific examples, but the protection scope of the present invention is not limited thereto.

Example 1

As shown in Figures 1-8, the new purlin-free composite metal roof system in Embodiment 1 includes a roof panel assembly and a support beam assembly, and the roof panel assembly is installed on the support beam assembly.

It is further provided that the supporting beam assembly in the present embodiment 1 includes a main beam 1, and several secondary beams 2 parallel to each other are installed on the main beam 1; the roof panel assembly includes several roof panels 3 installed on the secondary beams 2, The roof panels 3 are overlapped with each other, and a waterproof coiled material layer 1 4 is provided at the overlap, and a waterproof coiled material layer 2 5 is provided above the roof panel assembly, and the waterproof coiled material layer 1 4 is located at the bottom of the waterproof coiled material layer 2 5 Inside, the setting of double-layer waterproof membrane layer further improves the waterproof performance.

As preferably, the two ends of the roof panel 3 in the present embodiment 1 are respectively the public side 31 and the female side 32, the public side 31 is provided with a notch 311, and the top of the notch 311 is provided with an extension section 312; the female side 32 is provided with There is a protrusion 321 , and a hollow section 322 is arranged above the protrusion 321 ; the overlapping part is that the protrusion 321 enters the notch 311 , and the extension section 312 enters the hollow section 322 . When the two boards are overlapped, the male side 31 and the female side 32 are snapped together, and the extension section 312 of the male side 31 can cover the hollow section 322 of the female side 32, which plays a waterproof role to a certain extent, and leaves a gap at the lap joint. There is enough space for the male side 31 and the female side 32 to be fastened smoothly and conveniently when the end faces of the two boards are tightened, so that the interference fit between the boards is not affected, and a tighter overlapping effect is achieved.

More preferably, the top of the roof panel 3 in the present invention is provided with a recess 33, and the bottom of the roof panel 3 is provided with a lower protrusion 34, so as to prevent the panels from being uneven due to stress after the panels are overlapped. Phenomenon. The lower protrusion 34 is located directly below the lower recess 33 , and there is a filler 38 inside the lower protrusion 34 , such as polyurethane or other inorganic fillers, so that the stability of the plate end is higher. Structural nails 6 are driven into the lower recess 33, and the roof panel 3 and the secondary beam 2 are fixed through the structural nails 6, which effectively combines two components of different materials, improves the section moment of inertia of the entire component, and increases rigidity and load bearing force. The roof panel 3 has an excellent bearing capacity, the span can be two to eight meters, and the setting of the lower recess 33 avoids the protrusion of the nail head from destroying the flatness of the overall panel surface, and avoids affecting the laying of the waterproof coiled material layer, and The one-wave-one-nail method only needs 50% of the structural nail 6 dosage, which can make the waterproof membrane layer have strong wind-resistance performance.

The two ends of waterproof membrane layer one 4 are positioned on the side walls of two lower recesses 33 respectively, when laying waterproof membrane layer, the bonding degree of waterproof membrane layer and lap seam is higher, is difficult for loosening, more Not easy to leak.

The roof panel 3 in the present embodiment 1 comprises an upper plate 35, an intermediate core material plate 36 and a lower plate 37, the upper plate 35 and the lower plate 37 are metal plates, as the upper plate 35 can be a galvanized plate, and can also be other The metal plate suitable for the present invention; the lower plate 37 can be an galvanized plate, and can also be other metal plates suitable for the present invention; the middle core plate 36 is a rock wool board or a glass wool board. The webs of the secondary beams 2 are honeycomb webs or corrugated webs, and the distance between every two secondary beams 2 is 2-8m, and the distances between the secondary beams 2 are all equal.

The construction method of the new purlin-free composite metal roof system in this embodiment 1 includes the following steps: (1) setting the secondary beams 2 with a distance of 2m-8m along the roof drainage direction; (2) installing the main beam 1 on the main structure, and Connect the two ends of the secondary beam 2 to the main beam 1, and make the upper surface of the main beam 1 and the secondary beam 2 flush; (3) Lay the roof panel 3 on the secondary beam 2, and the length direction of the roof panel 3 is the drainage direction , when the short sides of the roof panels 3 are butted, the butt joints are arranged on the secondary beam 2, and thermal insulation materials are arranged in the butt joints. (4) Structural nails 6 are driven into the lower recess 33 of the roof panel 3, and the roof panel 3 and the secondary beam 2 are fixed through the structural nails 6; The laying method of the waterproof coiled material layer 14 is self-adhesive laying; (6) Lay the waterproof coiled material layer 2 5 above the roof panel assembly, the waterproof coiled material layer 1 4 is located below the waterproof coiled material layer 2 5, and the waterproof coiled material layer The laying method of material layer 25 is full sticky laying.

Example 2

As shown in Figures 9 and 10, in this embodiment 2, the two ends of the roof panel 3 are the male side 31 and the female side 32 respectively, the male side 31 is provided with an upper extension section 313, and the lower part of the upper extension section 313 is the lower hollow section 314, the female edge 32 is provided with a lower extension section 324, the top of the lower extension section 324 is an upper hollow section 323, and the overlapping part is that the upper extension section 313 enters the upper hollow section 323, and the lower extension section 324 enters the lower hollow section 314 . In Embodiment 2, when the roof panels 3 are overlapped, it is only necessary to insert the female side 32 of the roof panel 3 into the male side 31 of the other roof panel 3 from bottom to top, and the construction is more convenient.

The other structures, connection methods, and construction methods of this embodiment 2 are the same as those of embodiment 1, and will not be repeated here.

Performance Testing

Test the bearing capacity, wind resistance and waterproof performance of Examples 1 and 2 according to well-known test methods in the prior art (such as the composite steel plate mechanics and process performance test method standard whose standard number is GB T6396-2008), and the test results are the examples. Both 1 and 2 have a bearing capacity of 350kg/square meter with a span of 4m; the wind resistance exceeds 5.0 MPa, which is equivalent to being able to resist wind force above level 17; and the waterproof performance is first-level.

Therefore, the present invention combines composite roof panels and steel beams for the entire roof system, cancels the traditional flexible roof system with purlins, and uses economical and beautiful honeycomb secondary beams or corrugated secondary beams, which is better than the combination of purlins and bottom plates. , the roof system is lighter in weight, uses fewer components, lower material costs, shortens the construction period, has high installation efficiency, and reduces construction costs. Cost-effective roofing.

The above-mentioned embodiments are only used to explain the inventive concept of the present invention, but not to limit the protection of the rights of the present invention. Any insubstantial changes made to the present invention by using this concept should fall within the scope of protection of the present invention.

Claims (9)

1. A new purlin-free composite metal roof system, comprising a roof panel assembly and a support beam assembly, the roof panel assembly is installed on the support beam assembly, characterized in that: the support beam assembly includes a main beam, the Several secondary beams parallel to each other are installed on the main beam; the roof panel assembly includes several roof panels installed on the secondary beams, and the roof panels are overlapped with each other, and a waterproof membrane layer is provided at the overlap 1, and a waterproof coiled material layer 2 is arranged above the roof panel assembly, and the waterproof coiled material layer 1 is located inside the waterproof coiled material layer 2; the roof panel includes an upper layer board, a middle core board and a lower layer board, and the Both the upper plate and the lower plate are metal plates, the middle core plate is rock wool board or glass wool board; The lower thrust is located directly below the lower recess. 2. The new purlin-free composite metal roof system as claimed in claim 1, characterized in that: the two ends of the roof panel are respectively a public side and a female side, the public side is provided with a notch, and the notch An extension section is provided on the upper side, a protrusion is provided on the female side, and a hollow section is provided above the protrusion, and the overlapping part is that the protrusion enters the notch, and the extension section enters the hollow section. 3. The new purlin-free composite metal roof system as claimed in claim 1, characterized in that: the two ends of the roof panel are respectively a public side and a female side, and the public side is provided with an upper extension, and the upper extension Below the section is the lower hollow section, the female edge is provided with a lower extension section, and above the lower extension section is the upper hollow section, and the overlapping joint is that the upper extension section enters the upper hollow section, and the lower extension section Enter the lower hollow section. 4. The novel purlin-free composite metal roof system as claimed in claim 1, characterized in that: there are fillers in the lower protrusions. 5. The novel purlin-free composite metal roof system according to claim 1, characterized in that: the two ends of the waterproof membrane layer one are respectively located on the side walls of the two recesses. 6. The new purlin-free composite metal roof system according to claim 1, characterized in that structural nails are driven into the recess, and the roof panels and secondary beams are fixed by structural nails. 7. The new purlin-free composite metal roof system according to claim 1, characterized in that: the webs of the secondary beams are honeycomb webs or corrugated webs, and the distance between every two secondary beams is 2-8m , and the spacing between the secondary beams is equal. 8. A construction method for a new type of purlin-free composite metal roof system, which is characterized in that it includes the following steps: (1) installing secondary beams with a spacing of 2m-8m along the roof drainage direction; (2) installing the main beam on the main structure, And connect the two ends of the secondary beam to the main beam, and make the upper surface of the main beam and the secondary beam flush; (3) Lay the roof panel on the secondary beam, and the length direction of the roof panel is the drainage direction; (4) The roof panel Structural nails are driven into the lower recess of the roof panel, and the roof panel and the secondary beam are fixed by the structural nails; (5) Lay the first waterproof coiled material layer at the lap joint of the roof panel, and the laying method of the waterproof coiled material layer one is self-adhesive Laying; (6) laying the second waterproof coiled material layer above the roof panel assembly, the first waterproof coiled material layer is located below the second waterproof coiled material layer, and the second waterproof coiled material layer is laid by full sticky laying. 9. The construction method of the novel purlin-free composite metal roof system as claimed in claim 8, characterized in that: when the short sides of the roof panels are butted, on the secondary beams provided at the butt joints, thermal insulation materials are arranged in the butt joints.

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