A construction method for a large-slope metal roof and a positioning piece used therein

Abstract

The present application relates to the field of building construction and provides a method for constructing a large-slope metal roof, comprising the following steps: construction preparation: inspecting the roof's purlin structure, verifying the number of purlin structures, distinguishing between primary and secondary purlins, and measuring the size of each purlin and the slope required for installation of the metal roof; purlin support installation: evenly installing a number of purlin supports at the purlins; channel steel purlin installation: installing the channel steel purlins on the purlins using the purlin supports; roof baseplate installation: installing the baseplate on the purlins, longitudinally overlapping and securing the baseplate to the purlins; fixed support installation: installing fixed supports on the baseplate, with the fixed supports spaced apart by a preset distance; non-woven fabric installation: laying the non-woven fabric on the roof baseplate; sound-absorbing cotton installation: laying the sound-absorbing cotton board on the non-woven fabric; and waterproof vapor barrier membrane installation: covering the sound-absorbing cotton with the waterproof vapor barrier membrane. The present application has the effect of stabilizing the transportation of roof panels and improving the efficiency of transportation and installation. In addition, a positioning element is also provided.

Description

Technical Field

[0001] The present application relates to the field of building construction, and in particular to a construction method for a large-slope metal roof and a positioning member used therein. Background Art

[0002] Metal roofing refers to a roofing form that uses metal sheets as roofing materials and combines the structural layer and waterproof layer into one.

[0003] Metal roofing, due to its light weight and ease of construction, is widely used in large-span, large-space buildings such as factories, gymnasiums, exhibition halls, stations, and ports. During construction, waterproofing is primarily required at the joints between roof panels, roof protrusions, fasteners, and the joints between skylights to achieve a waterproof roof.

[0004] Most traditional metal roof construction uses manual laying of panels, and each panel needs to be transported to the roof when laying layer by layer, resulting in slow construction speed. Summary of the Invention

[0005] In order to improve the above problems, the present application provides a construction method for a large-slope metal roof and a positioning member used therein.

[0006] The application provides a method for constructing a large-slope metal roof and the positioning members used therein, which adopt the following technical solutions:

[0007] A construction method for a large-slope metal roof comprises the following steps:

[0008] Construction preparation: Check the purlin structure of the roof, verify the number of purlin structures, distinguish between main purlins and secondary purlins, measure the size of each purlin and the slope required for installation of the metal roof;

[0009] Purlin support plate installation: evenly install several purlin support plates at the purlins;

[0010] Installation of channel steel purlins: Install the channel steel purlins on the purlins through the purlin support plates;

[0011] Installation of roof bottom plate: Install the bottom plate on the purlin, overlap the bottom plate longitudinally and fix it on the purlin;

[0012] Fixed support installation: Install fixed supports on the base plate, with the fixed supports spaced at a preset distance from each other;

[0013] Non-woven fabric installation: non-woven fabric is laid on the roof baseboard;

[0014] Sound-absorbing cotton installation: sound-absorbing cotton board is laid on non-woven fabric;

[0015] Installation of waterproof vapor barrier membrane: The waterproof vapor barrier membrane is covered on the sound-absorbing cotton;

[0016] Thermal insulation cotton installation: laying thermal insulation layer on the surface of waterproof vapor barrier membrane;

[0017] Roof panel production: The roof panels are produced on-site at the eaves or gutters using the lifting platform of the high-altitude tile pressing equipment. During the production process, the high-altitude tile pressing equipment applies a thrust to the roof panels.

[0018] Roof panel transportation: The roof panels are transported by the driving force and gradually move to the roof. After the transportation of a single roof panel is completed, the high-altitude tile pressing equipment moves to the next installation location until all the roof panels are installed;

[0019] Roof board installation: Install the roof board where the insulation cotton is laid. Fixed points are set at the fixed supports for the folded edges of the roof board to be pressed tightly. The roof board is screwed to the insulation layer along the purlins.

[0020] Roof edge finishing: adjacent roof boards are corrected and locked;

[0021] Roof cleaning: clean up the debris on the roof and seal the holes and gaps;

[0022] Waterproofing: Apply waterproof coating on the folded edge of the roof board and lay waterproof membrane on the roof board;

[0023] Completion acceptance: Inspect the installed roof panels and conduct acceptance after the waterproof coating and waterproof membrane solidify.

[0024] By adopting the above technical solution, the fixed supports are directly connected to the base plate and purlins, thereby improving the overall stability of the roof panels, making the roof panels more stable after installation and more evenly stressed. The roof panels are then stably produced and transported at high altitudes through high-altitude tile pressing equipment, which can speed up transportation efficiency and shorten construction progress.

[0025] Optionally, after the insulation cotton installation step, a positioning piece installation process is also provided. A limiting groove is opened on the outer surface of the fixed support along the roof slope. The positioning piece is installed on the fixed bracket at an angle along the roof slope through the limiting groove, and is located at the fixed support at the eaves and the fixed support at the roof.

[0026] By adopting the above technical solution, the positioning piece is installed to adapt to the roof slope through the limiting groove. When the roof panel enters the positioning piece, it extends toward the roof along the inclined roof slope. The positioning piece guides and positions the panel to ensure stable transportation of the roof panel.

[0027] Optionally, in the step of installing the channel steel purlins, the main purlins and the secondary purlins are installed along the slope according to the roof slope, and the intervals between the secondary purlins are changed, and the intervals between the secondary purlins with higher horizontal heights are larger than those between the secondary purlins with lower horizontal heights.

[0028] By adopting the above technical solution, the main effect is that when there is a slope, the lower the horizontal height, the greater the weight it needs to bear, so the secondary purlins are arranged more densely.

[0029] Optionally, in the step of finishing the roof edge, there is also a step of installing a windproof clip. A fixed point is set when the roof panel is installed. After the locking of the upright lock-edge roof panel is completed, the windproof clip is installed. The setting position of the windproof clip is consistent with the position of the fixed support, and when installing each roof panel, it is necessary to mark the corresponding position of the fixed support. After locking the adjacent roof panels, the windproof clip is installed according to the mark.

[0030] By adopting the above technical solution, the windproof clip does not need to destroy the alloy plate ribs, which reduces the appearance of roof slab pores, is beneficial to the waterproof effect of the roof, improves the wind resistance, and improves the stability of the roof slab after installation.

[0031] Optionally, during the roof installation process, after the ribs of the roof panel are buckled into the fixed supports, each fixed support is checked to see whether it is completely buckled into the ribs. After it is completely buckled, the next metal roof panel is installed, and the adjacent roof panel edges are pre-locked with a manual clamp.

[0032] By adopting the above technical solution, the ribs of the roof panel are buckled with the fixed supports, so that the roof panel is more stably connected to the fixed supports. At the same time, the fixed supports are less likely to detach when bearing the pressure of the roof panel, and the manual clamping device is used to pre-lock the edges to prevent them from being overturned by the wind before formal locking.

[0033] A positioning piece is used in the construction method of the above-mentioned large-slope metal roof, comprising a vertical plate portion and an inclined portion; the inclined portion is installed on the vertical plate portion and is inclined to one side; the vertical plate portion is provided with an inner groove for the roof panel folding edge to be snapped into; the vertical plate portion is slidably connected to the fixed support through the limiting groove.

[0034] By adopting the above technical solution, the entrance of the roof panel is enlarged by the inclined portion, so that after the roof panel contacts the inclined portion, it moves along the inclined surface of the inclined portion into the vertical plate portion, thereby realizing a guiding effect. The inner groove fits the folded edge of the roof panel, so that the folded edge of the roof panel is not affected after entering the inner groove. Since positioning pieces are provided at both ends of the roof panel in the width direction, the roof panel is confined between the two vertical plate portions, so as to achieve the effect of fixed-point transportation along the roof slope, improve the efficiency of roof panel transportation, and accelerate the construction progress.

[0035] Optionally, the vertical plate portion is provided with a threaded hole; the vertical plate portion is further provided with a pressing plate portion, the pressing plate portion is screwed to the threaded hole and extends into the inner groove.

[0036] By adopting the above technical solution, the pressure plate part can be pressed down into the inner groove through the cooperation between the pressure plate part and the threaded hole. The pressure plate part can limit the folding edge of the roof board to avoid the roof board from bending along the folding edge during transportation.

[0037] Optionally, a flat pressing portion is provided at one end of the pressure plate portion located in the inner groove; the flat pressing portion is slidably connected to the inner wall of the inner groove and is movably connected to the pressure plate portion.

[0038] By adopting the above technical solution, the pressure plate part can drive the flat pressing part to move up and down along the inner groove, thereby adjusting the vertical height of the flat pressing part. The flat pressing part can expand the limiting area of ​​the roof folding edge, making the limiting effect more stable.

[0039] Optionally, a rolling portion is further provided on the flat pressing portion, and the rolling portion is movably connected to an end of the flat pressing portion away from the pressure plate portion.

[0040] By adopting the above technical solution, the rolling part can rotate along the flat pressing part. When the pressure plate part drives the flat pressing part and the rolling part to contact the roof board, the rolling part rolls along the folded edge of the roof board, thereby limiting the folded edge of the roof board while reducing the friction with the roof board, making the transportation of the roof board smoother and reducing the risk of scratches on the folded edge of the roof board.

[0041] Optionally, the vertical plate portion is further provided with a rolling portion and a connecting shaft, a mounting groove is provided on the vertical plate portion, and the connecting shaft is located in the mounting groove; the rolling portion is pivotally connected to the connecting shaft, and the rolling portion contacts the bottom surface of the roof panel.

[0042] By adopting the above technical solution, another set of rolling parts is pivotally connected to the connecting shaft, so that the bottom of the roof board can roll along the other set of rolling parts, further reducing the friction during the transportation of the roof board and reducing the possibility of the bottom of the roof board being scratched.

[0043] In summary, this application includes at least one of the following beneficial technical effects:

[0044] 1. The fixed supports are directly connected to the bottom plate and purlins to improve the overall stability of the roof, making the roof more stable and more evenly stressed after installation. The positioning parts can ensure stable transportation of the roof, which can speed up transportation efficiency and shorten construction progress.

[0045] 2. The entrance of the roof panel is enlarged by the inclined portion, so that after the roof panel contacts the inclined portion, it moves along the inclined surface of the inclined portion into the vertical plate portion, thereby achieving a guiding function. The inner groove fits the folded edge of the roof panel, so that the folded edge of the roof panel is not affected after entering the inner groove. Since positioning pieces are provided at both ends of the roof panel in the width direction, the roof panel is confined between the two vertical plates to achieve the function of fixed-point transportation;

[0046] 3. The pressing plate can be pressed down into the inner groove by cooperating with the threaded hole. The pressing plate can limit the folding edge of the roof board to prevent the roof board from bending along the folding edge during transportation.

[0047] 4. The rolling part can roll along the flat pressing part. When the pressure plate part drives the flat pressing part, the rolling part and the roof board, the rolling part rolls along the roof board, thereby limiting the position of the roof board and reducing the friction with the folded edge of the roof board, making the transportation of the roof board smoother and reducing the scratches on the surface of the roof board. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 This is a schematic diagram of a first three-dimensional structure of a positioning member in one embodiment of the present application;

[0049] Figure 2 is a schematic diagram of the three-dimensional structure of a fixed support in some embodiments of the present application;

[0050] Figure 3 is a schematic diagram of a three-dimensional structure in which a positioning member is installed on a fixed support in some embodiments of the present application;

[0051] Figure 4 This is a schematic diagram of a second three-dimensional structure of a positioning member in some embodiments of the present application;

[0052] Figure 5 is a front view structural diagram of the roof panel and the positioning member after being connected in some embodiments of the present application;

[0053] Figure 6 This is a schematic diagram of a first cross-sectional structure of a positioning member in some embodiments of the present application;

[0054] Figure 7 yes Figure 6 Schematic diagram of the enlarged structure of A;

[0055] Figure 8 This is a schematic diagram of a second cross-sectional structure of a positioning member in some embodiments of the present application;

[0056] Figure 9 This is a schematic diagram of a third cross-sectional structure of a positioning member in some embodiments of the present application;

[0057] The marks in the accompanying drawings are: 1. vertical plate part, 11. inner groove, 12. base, 13. protrusion, 14. threaded hole, 15. sliding groove, 16. mounting groove, 2. inclined part, 3. fixed support, 31. limiting groove, 4. pressure plate part, 5. flat pressing part, 51. pivot groove, 6. rolling part, 7. connecting shaft. DETAILED DESCRIPTION

[0058] The following describes the embodiments of the present application through specific examples. Those skilled in the art can easily understand the other advantages and effects of the present application from the information disclosed in this application. The present application can also be implemented or applied through different specific embodiments. The details in this application can also be modified or changed according to different viewpoints and application systems without departing from the spirit of this application. It should be noted that the embodiments and features in the embodiments of this application can be combined with each other unless they conflict.

[0059] The following is a detailed description of the embodiments of the present application with reference to the accompanying drawings so that those skilled in the art can easily implement the present application. The present application can be embodied in many different forms and is not limited to the embodiments described herein.

[0060] In the description of this application, reference to the terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of this application. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine and integrate different embodiments or examples described in this application, as well as features of different embodiments or examples, unless otherwise contradictory.

[0061] Furthermore, the terms "first" and "second" are used solely to indicate a target and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the context of this application, "plurality" means two or more, unless otherwise specifically defined.

[0062] Throughout this specification, when a device is said to be "connected" to another device, this includes not only "direct connection" but also "indirect connection" with other elements interposed therebetween. Furthermore, when a device is said to "include" a certain component, unless otherwise stated, this does not exclude the inclusion of other components but rather implies that the device may include other components.

[0063] The following is combined with Figure 1 -Attached Figure 9 , further details of this application are given.

[0064] The embodiments of the present application disclose a construction method for a large-slope metal roof and a positioning member used therein.

[0065] A method for constructing a steep-slope metal roof, in one embodiment, comprises the following steps:

[0066] S1. Construction preparation: Check the purlin structure of the roof, check the number of purlin structures, measure the size of the purlins and the slope required for the installation of the metal roof.

[0067] Among them, if the purlins are not installed, main purlins need to be installed. According to the distance between the load-bearing beams, the main purlins of determined length are installed on the beams using steel brackets and bolts. The main purlins provide the main support for the metal roof. The main purlins can be made of H-shaped steel bars or square steel bars.

[0068] S2. Installation of purlin support plates: Install several purlin support plates evenly on the purlins to support and connect the secondary purlins.

[0069] Among them, the combination of several purlins forms the roof support point. The purlins are divided into main purlins and secondary purlins. The main purlins and secondary purlins are arranged perpendicularly and staggered. If the main purlins are installed horizontally on the load-bearing beams, the secondary purlins are installed longitudinally on the main purlins. The purlin supports are used to install the secondary purlins. Therefore, before the secondary purlins are installed, the purlin supports are installed on the main purlins by bolts or screws, and are installed at a preset distance according to the length of the main purlins. The preset distance is determined according to the actual main purlin length and slope. The two main purlins are set with the same number of purlin supports and the same number of secondary purlins.

[0070] S3. Installation of channel steel purlins: The secondary purlins adopt channel steel purlins, which are also called C-type purlins. After the channel steel purlins are inserted into the purlin support plates, they are fixed to the main purlins by bolts or screws, and the two are perpendicular to each other. At the same time, the top surfaces of the main purlins and secondary purlins are in the same horizontal plane. The roof bottom plate can contact the main purlins and secondary purlins during installation to ensure the stability of the bearing point.

[0071] Among them, if there is a slope on the roof, the main purlins and secondary purlins are installed along the slope, and the intervals between the secondary purlins change. The higher the horizontal height, the larger the intervals, that is, the secondary purlins near the bottom of the slope have a smaller interval, and the secondary purlins near the top of the slope have a larger interval. The main function is that when there is a slope, the lower the horizontal height, the greater the weight it needs to bear, so the secondary purlins are set more densely.

[0072] S4. Installation of roof base plate: Install the roof base plate on the purlin. The roof base plate should be overlapped on the purlin longitudinally. The overlap length should not be less than the connection between the purlin and the load-bearing beam. The roof base plate should be fixed to the side of multiple secondary purlins by screws or self-tapping screws. The screws should be fixed along the slope to reduce the situation where the roof base plate is unstable due to deviation or skewness of the fixing point.

[0073] S5. Install the fixed supports 3: Install the fixed supports 3 on the roof base plate. The fixed supports 3 are spaced apart by a preset distance. The fixed supports 3 are metal T-shaped supports. Each fixed support 3 is fixed to the roof base plate with at least two bolts.

[0074] Mark the specific positions on the top surface of the roof base plate corresponding to the secondary purlin and the main purlin with a marker or ink fountain, and then use a tape measure or other measuring tools to determine the installation point and spacing of the fixed support 3. Then use bolts to penetrate the fixed support 3 and penetrate the roof base plate to connect with the purlin. The fixed support 3 is directly installed on the purlin by bolts, so that the force it carries can be directly transmitted when subjected to stress such as wind pressure or rain erosion, and shared by the purlin, thereby improving the stability of the entire roof panel after installation.

[0075] S6. Non-woven fabric installation: Non-woven fabric is laid on the thermal insulation board to stabilize the thermal insulation board. At the same time, it can effectively block heat and prevent heat loss from the roof. It can keep the indoor temperature stable and further play a role of thermal insulation in conjunction with the thermal insulation board.

[0076] S7. Installation of sound-absorbing cotton: Sound-absorbing cotton can be made of 30mm-40mm glass wool. The sound-absorbing effect of glass wool can reduce the outside noise from entering the house, or reduce the impact of noise in the house on the external environment.

[0077] S8. Installation of waterproof vapor barrier membrane: The waterproof vapor barrier membrane is covered on the roof base plate. The waterproof vapor barrier membrane can be made of 0.3mm PE vapor barrier membrane. The PE vapor barrier membrane is laid on the roof base plate along the slope, and is penetrated by fixed supports 3 and laid with staggered seams. The PE vapor barrier membrane has a light unit area mass, extremely strong air permeability, good waterproof performance, excellent resistance to environmental stress cracking, and can reduce water leakage and seepage from the upper layer.

[0078] S9. Thermal insulation cotton installation: The thermal insulation cotton board is laid on the waterproof vapor barrier membrane. The thermal insulation cotton can be made of 50mm thermal insulation rock wool board, hereinafter referred to as thermal insulation cotton board. The size is calculated according to the laying method and the cutting is carried out. The linear error of the cutting edge is not more than 5mm, and the splicing seam is not more than 2mm. The thermal insulation cotton board should be laid flat and straight without distortion, and should be properly cut. Especially when encountering the fixed support 3, wrap the bottom of the fixed support 3. The fixed support 3 can also make the thermal insulation cotton board more stably arranged. The fixed support 3 can support the thermal insulation cotton board, provide multiple support points, and reduce the situation where the thermal insulation cotton board is lifted up due to wind pressure.

[0079] S9. Installation of positioning parts: The positioning parts can be detachably installed at the fixed supports 3. The positioning parts can facilitate the transportation and installation of the roof panels. The fixed supports 3 are provided with inclined limit grooves 31 along the roof slope. The positioning parts are inserted into the fixed supports 3 through the limit grooves 31. The positioning parts only need to be installed at the fixed supports 3 at the eaves, that is, the initial position where the roof panel enters the fixed supports, and the fixed supports 3 at the roof, that is, the end position where the roof panel extends after entering. The positioning parts can guide and position the two ends of the roof panel along the width direction, thereby improving the transportation speed of the roof panel and the accuracy of the installation position.

[0080] Among them, two positioning parts are required for positioning on both sides corresponding to a single roof panel. After the two positioning parts are connected to the fixed supports 3 respectively, the single roof panel moves along the two positioning parts, so that the roof panel moves from the edge of the roof to the end of the roof, and the transportation of the single roof panel is completed. The positioning parts are separated from the fixed supports 3 and installed on the next group of roof panels. The next group of roof panels are positioned and transported. The positioning parts are mainly used for positioning and transportation of a single roof panel. After the transportation is completed, the positioning parts and the fixed supports 3 are detachable, so they can be disassembled and assembled to the next group of roof panels. Therefore, each time a roof panel is transported, it is a single roof panel. Due to the detachable feature, two positioning parts are set at the initial end where the roof panel enters the eaves, and two are set at the end. Therefore, four positioning parts can be prepared, or a few more can be prepared as spares on the basis of the four.

[0081] The positioning member and the roof panel abut against each other during transportation, and the positioning member will lift the roof panel upward by a certain height, so that the height of the roof panel is higher than the top height of the fixed support 3, so that the roof panel will not contact the fixed support 3.

[0082] S10. Roof panel production: The on-site production and installation of metal roof corrugated roof panels are carried out by high-altitude panel presses and other similar high-altitude tile pressing equipment, and the production is relative to the positioning parts. Taking the high-altitude panel press as an example, the high-altitude panel press adopts a crawler type, that is, the bottom contacting the ground is a crawler, which can be moved along the ground by the crawler to change the conveying position, which is convenient for site transportation. The upper part is a liftable anti-ceiling platform, which uses the lifting platform to feed materials on the ground, and the high-altitude production of panels is integrated. After the high-altitude panel press produces and conveys the roof panel, it moves to the next roof panel delivery point via the crawler to achieve the purpose of convenient panel making and transportation. The use of equipment such as the high-altitude panel press can be used in conjunction with feeding to reduce the tediousness of manual transportation and reduce the consumption of manpower and material resources.

[0083] S11. Roof panel transportation: The roof panels are made of standing seam panels made of high-strength alloy steel. As the high-altitude panel press continuously produces roof panels, the formed roof panels are driven by the high-altitude panel press to continuously move toward the positioning parts on the fixed support 3. The positioning parts guide the formed roof panels to move along the guided direction, ensuring the accurate position of the roof panels. Subsequently, both ends of the roof panels enter the positioning range of the positioning parts and can be continuously transported to the top of the slope along the positioning parts. This ensures that the roof panels are accurately transported and are restricted by the positioning parts, reducing the occurrence of offset during movement.

[0084] Among them, after the transportation of the roof panel is completed, the positioning piece at one end of the roof panel can be taken out along the limiting groove 31, and the folded edge of the roof panel will fall into contact with the fixed support 3 at the corresponding end. At this time, the roof panel is buckled with the fixed support 3 at this end, and the folded edge at the other end of the roof panel is tilted. The tilted folded edge is more convenient for inserting into the fixed support 3, and then the positioning piece at the other end is taken out, so that the folded edge at the other end of the roof panel is inserted into the fixed support 3 at the other end, and the fixed support 3 is buckled with the folded edge of the roof panel at this end. After the positioning pieces at both ends are taken out, they can be moved and inserted into the fixed support 3 at the next roof panel to be transported, so as to be used for positioning and transporting the next roof panel.

[0085] Among them, if multiple groups of high-altitude press machines are set up, at least four positioning parts are required for each group, and the number of positioning parts should be prepared as needed.

[0086] S12. Roof panel installation: After the roof panels are delivered, use bolts or screws to penetrate the roof panels and firmly connect them to the insulation layer. Bolts or screws are tightened to the insulation layer at intervals.

[0087] When installing the roof panels, it is necessary to check whether the ribs of the roof panels are buckled into the fixed supports 3 to ensure a firm connection with the fixed supports 3. After the buckling is completed, each fixed support 3 is checked to see whether it is completely buckled into the ribs. After it is completely buckled, the next roof panel is installed. After installing several panels, a manual clamp is used to pre-lock the edges.

[0088] S13, roof edge trimming: the folding edges of adjacent roof panels are located at the fixed support 3, and the folding edges of adjacent roof panels are bent using a folding machine so that the adjacent roofs are locked together.

[0089] Among them, after the roof edges are trimmed and locked, windproof clips need to be installed and constructed. Windproof clips are also called wind-resistant clips. They are located at the locking edge of the support and the roof panel where the metal roof has weak wind-resistant ability. By adding windproof clips at the locking edge position of the fixed support and the roof panel, the roof's wind-resistant ability can be significantly improved. The denser the spacing between the windproof clips, the stronger the wind-resistant ability of the roof system.

[0090] Windbreaks should be made of high-strength, corrosion-resistant materials, such as aluminum alloy. Roofing windbreaks should be accompanied by a product certificate and performance test report. The material type, specifications, and performance must comply with current national product standards and design requirements. For example, a 65mm wide aluminum-magnesium-manganese plate windbreak should be used.

[0091] The setting position of the windproof clip is consistent with the position of the fixed support 3, and when installing each roof board, it is necessary to mark the corresponding position of the fixed support 3 with a marker or other tools. After locking the adjacent roof boards, install the windproof clip according to the mark. The windproof clip is fixed to the upright double-locking alloy plate with screws, which does not require the destruction of the alloy plate ribs, reduces the appearance of roof board pores, and is beneficial to the roof waterproofing effect.

[0092] The windproof clips are arranged in rows and lines with uniform spacing, which are firm and reliable and prevent the locking edge bite parts from coming off.

[0093] S14. Waterproofing: Apply waterproof coating on the roof panels and lay waterproof membrane, especially apply waterproof coating on the folded edges of adjacent roof panels. The waterproof coating can be high-quality acrylic waterproof coating, and the waterproof membrane can be polymer modified waterproof membrane, such as 1.5mm-2mm thick TP0 waterproof membrane. The roof adopts a one-cloth and three-coat waterproofing process to achieve roof waterproofing.

[0094] S15. Roof cleaning: clean the debris on the roof, and use a two-coat method to strengthen waterproofing around the holes or cracks in the roof. Use glue to block and seal the holes.

[0095] S16. Completion acceptance: Inspect the installed roof panels and wait for the holes and cracks to be glued, and the waterproof coating and waterproof membrane to solidify and stabilize, then conduct waterproof acceptance. If leakage still occurs, additional waterproof coating needs to be added to the leaking area.

[0096] Among them, it is necessary to test the wind-uplift resistance of the metal roof system during acceptance, using simulated static and dynamic pressure loading methods. For metal roofs in strong (typhoon) wind areas (basic wind pressure 20.5kN / m²) and architectural metal roofs that require dynamic wind load testing in design, dynamic wind load testing should be used. The wind-uplift resistance performance test of the metal roof system should be tested on representative typical parts of the metal roof. The materials, component processing, installation and construction quality of the tested roof system should be consistent with the actual project conditions, and should meet the design requirements and comply with the provisions of the relevant technical standards.

[0097] A positioning member, in another embodiment, with reference to Figure 1 As shown, the positioning member applied based on the above-mentioned construction method includes a vertical plate portion 1 and an inclined portion 2; the vertical plate portion 1 is detachably connected to the fixed support 3, the inclined portion 2 is installed on the vertical plate portion 1, and is inclined to one side, the vertical plate portion 1 is a metal vertical plate, specifically aluminum alloy can be used, and the shape can be a semi-T-shaped plate, so that the metal vertical plate forms an inner groove 11, and a raised slider is provided below the other side of the opening of the inner groove 11, and a pedestal 12 is provided on the opposite side of the slider, the inclined portion 2 can be an L-shaped plate, and is inclined to one side with the metal vertical plate as the starting point, and the horizontal plate surface of the L-shaped plate is docked with the pedestal 12 of the metal vertical plate.

[0098] refer to Figure 2 and Figure 3As shown, a limiting groove 31 is inclined along the roof slope direction on the fixed support 3, and the metal vertical plate is slidably connected to the fixed support 3 through the raised slider and the limiting groove 31, that is, the metal vertical plate can be inserted into the limiting groove 31 through the slider, so that the metal vertical plate and the L-shaped plate are plugged into the fixed support 3. When disassembly is required, it can be pulled out from the limiting groove 31 through the slider.

[0099] Specifically, when it is necessary to transport the metal roof panel, the slider is used to insert the limit groove 31 into the fixed support 3, and the L-shaped plate is tilted in different directions according to the installed fixed support 3. For example, the fixed supports 3 at both ends of the roof panel are divided into left and right ends, and the area in the middle is the roof panel installation area. The L-shaped plate on the right end fixed support 3 is tilted to the right with the metal vertical plate as the starting point, and the tilt angle can be 15°-30°. The L-shaped plate of the left end fixed support 3 is tilted to the left with the metal vertical plate as the starting point, and the tilt angle can also be 15°-30°, so that the L-shaped plates at both ends are unfolded to the corresponding installation positions. When the two ends of the roof panel enter the range of the L-shaped plate, if the position is offset, the roof panel is continuously transported and moves along the inclined surface of the L-shaped plate to the base 12 of the metal vertical plate, which can guide and push the roof panel to achieve the guiding and positioning effect. The inner groove 11 is a conveying channel for the roof panel folding edge, which also provides guidance and positioning for the roof panel folding edge.

[0100] In some embodiments, reference Figure 4 and Figure 5 As shown, the vertical plate portion 1 is provided with a sliding groove 15 and a threaded hole 14. The sliding groove 15 is provided in the inner groove 11 of the metal vertical plate. The sliding groove 15 can be a connected groove or a non-connected groove. The threaded hole 14 is located at the top of the metal vertical plate and passes through the top to be connected with the inner groove 11. The metal vertical plate portion 1 is also provided with a pressure plate portion 4. The pressure plate portion 4 can be a screw. According to the portability, a butterfly bolt can be used. Taking the butterfly bolt as an example, the butterfly bolt is screwed with the threaded hole 14 and extends into the inner groove 11 after continuous rotation, thereby reducing the space in the inner groove 11, so as to further reduce the movable space of the roof folding edge through the butterfly bolt, thereby reducing the bending of the folding edge during transportation.

[0101] Among them, a protective cover can be provided at one end of the butterfly bolt located in the inner groove 11. The protective cover at the bottom of the butterfly bolt can prevent the metal material at the bottom of the butterfly bolt from directly contacting the rigid folding edge of the roof board, causing friction scratches or damage, affecting the waterproof performance after subsequent locking.

[0102] Specifically, the butterfly bolt can be provided to limit the vertical direction of the roof panel fold during transportation. By continuously rotating the butterfly bolt, the butterfly bolt is continuously extended into the inner groove 11, so that the space in the inner groove 11 is continuously reduced, and the vertical movable space of the roof panel fold is reduced, so that the roof panel fold can be easily restricted within the inner groove 11 and the butterfly bolt, further preventing the roof panel fold from deviating or detaching from the inner groove 11 during transportation.

[0103] In some embodiments, reference Figure 6 and Figure 7 As shown, a flat pressing portion 5 is provided at one end of the pressure plate portion 4 located in the inner groove 11; the flat pressing portion 5 is slidably connected to the inner wall of the inner groove 11, and is movably connected to the pressure plate portion 4, wherein the flat pressing portion 5 can adopt a flat pressing plate or a flat pressing shaft. In this embodiment, the flat pressing plate is taken as an example. A sliding groove 15 or a sliding mouth can be opened at the inner wall of the inner groove 11. In this embodiment, the sliding groove 15 is taken as an example. One end of the flat pressing plate is formed into a shape matching the sliding groove 15, so that the flat pressing plate is limited by the sliding groove 15 and can only move along the sliding groove 15. The bottom surface of the flat pressing plate is a pressing surface for limiting the displacement of the roof panel folding edge. At the same time, the flat pressing plate away from the sliding groove 15 can be provided with a bend at one end to limit the detachment of the roof panel folding edge.

[0104] The top surface of the flat pressure plate is movably connected to the butterfly bolt, specifically, a movable groove is opened or a bearing is set on the top surface of the flat pressure plate. In this embodiment, the setting of the movable groove is taken as an example. A pivot head is set at the bottom of the butterfly bolt, and the pivot head is provided with an annular protrusion. An annular recess is provided in the movable groove, so that the pivot head of the butterfly bolt can be located in the movable groove and can rotate along the movable groove, but the pivot head cannot be separated from the movable groove due to the limitation of the movable groove.

[0105] Specifically, when the butterfly bolt rotates along the threaded hole 14 and moves up and down along the inner groove 11, the pivoting action of the movable groove prevents the butterfly bolt from being affected by the limiting effect of the flat plate during rotation. However, during the rotation process, the butterfly bolt drives the flat plate to move up and down along the sliding groove 15. By providing the flat plate, the limiting area of ​​the roof folding edge during transportation can be increased, so that the damage to the roof board caused by the single-point contact of the butterfly bolt is reduced during the limiting process, and the limiting effect is more stable.

[0106] In some embodiments, reference Figure 8 As shown, the flat pressing part 5 is also provided with a rolling part 6, and the rolling part 6 is movably connected to the end of the flat pressing part 5 away from the pressure plate part 4. The flat pressing part 5 may include a flat pressing shaft and a mounting seat. The top of the mounting seat is movably connected to the butterfly bolt. The specific connection method refers to the method of pivotal connection between the above-mentioned movable groove and the butterfly bolt. One end of the flat pressing shaft is slidably connected to the metal vertical plate through the sliding groove 15, and the other end passes through the mounting seat and is fixedly connected to the inner wall of the mounting seat. The rolling part 6 can be a roller or a drum. In this embodiment, the roller is taken as an example, and the roller can rotate along the flat pressing shaft.

[0107] Specifically, when the butterfly bolt rotates along the threaded hole 14 and moves up and down along the inner groove 11, it drives the mounting seat and the flat pressure shaft to move up and down along the sliding groove 15, thereby driving the roller to move up and down in the inner groove 11. When the roof panel is conveyed, the roller is adjusted to a suitable position to contact the roof panel, and the roof panel is clamped between the inner groove bottom surface of the inner groove 11 and the roller. During the transportation of the roof panel, positioning parts are provided at both ends, so that it can only move through the inner groove 11, and the vertical direction is limited by the roller and cannot move in the vertical direction, so as to achieve the effect of stable limitation. The roller can roll on the surface of the roof panel, reducing the friction with the surface of the roof panel, thereby preventing damage to the roof panel surface while providing stable limitation.

[0108] In some embodiments, reference Figure 9 As shown, an additional set of rolling parts 6 can be provided at the support platform 12, and the rolling parts 6 can be provided as a connecting shaft 7 and a roller. The roller is pivotally connected to the connecting shaft 7 so that the roller can roll along the connecting shaft, and the top end of the roller is at the same horizontal plane as the horizontal plate surface of the L-shaped plate, so that the roof board can be smoothly connected to the roller along the horizontal plate surface of the L-shaped plate during rolling. The two sets of rolling parts 6 are respectively located above the inner groove 11 and at the support platform 12, applying a clamping force to the roof board. The rolling action of the roller during transportation of the roof board can reduce the friction in contact with it, making the transportation of the roof board smoother and reducing the risk of scratches on the surface of the roof board.

[0109] The examples of this specific embodiment are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, any equivalent changes made based on the structure, shape, and principle of this application should be included in the scope of protection of this application.

Claims

1. A construction method for a large-slope metal roof, characterized in that: The steps include: Construction preparation: Check the purlin structure of the roof, verify the number of purlin structures, distinguish between main purlins and secondary purlins, measure the size of each purlin and the slope required for installation of the metal roof; Purlin support plate installation: evenly install several purlin support plates at the purlins; Installation of channel steel purlins: Install the channel steel purlins on the purlins through the purlin support plates; Installation of roof bottom plate: Install the bottom plate on the purlin, overlap the bottom plate longitudinally and fix it on the purlin; Fixed support installation: Install fixed supports on the base plate, with the fixed supports spaced at a preset distance from each other; Non-woven fabric installation: non-woven fabric is laid on the roof baseboard; Sound-absorbing cotton installation: sound-absorbing cotton board is laid on non-woven fabric; Installation of waterproof vapor barrier membrane: The waterproof vapor barrier membrane is covered on the sound-absorbing cotton; Thermal insulation cotton installation: laying thermal insulation layer on the surface of waterproof vapor barrier membrane; Positioning piece installation: a limiting groove (31) is provided on the outer surface of the fixed support (3) along the roof slope, and the positioning piece is installed obliquely along the roof slope on the fixed support (3) at the eaves and the fixed support (3) at the roof through the limiting groove (31); the positioning piece is detachably installed at the fixed support (3), and the positioning piece can facilitate the transportation and installation of the roof board, and the positioning piece can guide and position the two ends of the roof board along the width direction; Roof board production: The roof boards are produced on-site at the eaves or gutters using the lifting platform of the high-altitude tile pressing equipment. During the production process, the high-altitude tile pressing equipment applies a thrust to the roof boards. Roof panel transportation: The roof panels are transported by the driving force and gradually move to the roof. After the transportation of a single roof panel is completed, the high-altitude tile pressing equipment moves to the next installation location until all the roof panels are installed; Roof board installation: Install the roof board where the insulation cotton is laid. Fixed points are set at the fixed supports for the folded edges of the roof board to be pressed tightly. The roof board is screwed to the insulation layer along the purlins. Roof edge finishing: adjacent roof boards are corrected and locked; Roof cleaning: clean up the debris on the roof and seal the holes and gaps; Waterproofing: Apply waterproof coating on the folded edge of the roof board and lay waterproof membrane on the roof board; Completion acceptance: Inspect the installed roof panels and conduct acceptance after the waterproof coating and waterproof membrane solidify.

2. The method for constructing a large-slope metal roof according to claim 1, characterized in that: During the installation of the channel steel purlins, the main purlins and the secondary purlins are installed along the slope according to the roof slope, and the intervals between the secondary purlins are changed. The intervals between the secondary purlins with higher horizontal heights are larger than those between the secondary purlins with lower horizontal heights.

3. The method for constructing a large-slope metal roof according to claim 1, characterized in that: In the step of finishing the roof, there is also a step of installing windproof clips. Fixed points are set when installing the roof panels. After the locking of the upright lock-edge roof panels is completed, the windproof clips are installed. The setting position of the windproof clips is consistent with the position of the fixed support, and each roof panel needs to be marked at the corresponding position of the fixed support. After locking the adjacent roof panels, the windproof clips are installed according to the marks.

4. The method for constructing a large-slope metal roof according to claim 1, characterized in that: During the roof installation process, after the ribs of the roof panel are buckled into the fixed supports, each fixed support is checked to see if it is completely buckled into the ribs. After it is completely buckled, the next metal roof panel is installed, and the adjacent roof panel edges are pre-locked with a manual clamp.

5. A positioning member, characterized in that: A construction method for a large-slope metal roof as described in claim 2 comprises a vertical plate portion (1) and an inclined portion (2); the inclined portion (2) is mounted on the vertical plate portion (1) and is inclined to one side; the vertical plate portion (1) is provided with an inner groove (11) for the folded edge of the roof panel to be inserted; the vertical plate portion (1) is slidably connected to the fixed support (3) through the limiting groove (31).

6. A positioning member according to claim 5, characterized in that: The vertical plate portion (1) is provided with a threaded hole (14); the vertical plate portion (1) is further provided with a pressing plate portion (4), the pressing plate portion (4) being screwed to the threaded hole (14) and extending into the inner groove (11).

7. A positioning member according to claim 6, characterized in that: A flat pressing portion (5) is provided at one end of the pressing plate portion (4) located in the inner groove (11); the flat pressing portion (5) is slidably connected to the inner wall of the inner groove (11) and is movably connected to the pressing plate portion (4).

8. A positioning member according to claim 7, characterized in that: The flat pressing portion (5) is further provided with a rolling portion (6), and the rolling portion (6) is movably connected to one end of the flat pressing portion (5) away from the pressing plate portion (4).

9. A positioning member according to claim 5, characterized in that: The vertical plate portion (1) is further provided with a rolling portion (6) and a connecting shaft (7); a mounting groove (16) is provided on the vertical plate portion (1), and the connecting shaft (7) is located in the mounting groove (16); the rolling portion (6) is pivotally connected to the connecting shaft (7), and the rolling portion (6) contacts the bottom surface of the roof panel.

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