Steel concrete assembly type pitched roof construction device and construction method

Abstract

The invention discloses a steel concrete fabricated pitched roof construction device. Comprising a plurality of prefabricated columns, a plurality of prefabricated main beams and secondary beams, wherein one ends of the prefabricated columns are vertically fixed on the ground; two ends of the prefabricated main beams are respectively fixed on the tops of the two prefabricated columns and are parallel to each other; the positioning anti-skid water stop device is fixed at the bottom of the secondary beam; the prefabricated concrete slab is fixed at the top of the positioning anti-skid water stop device; the positioning anti-skid water stopping device comprises a waterproof assembly at the bottom, a fastening structure located at the top of the waterproof assembly and a positioning structure fixed to the top of the waterproof assembly. The prefabricated assembly type concrete slab comprises a positioning preset hole which is matched with the positioning structure and penetrates through the prefabricated assembly type concrete slab; the fastening structure sequentially penetrates through the bottom of the secondary beam and the waterproof assembly. A positioning structure penetrates into the positioning preset hole, and the prefabricated concrete slab is fixed to the upper portion of the positioning anti-skid water stop device; the invention further discloses a corresponding construction method. And the stability, the safety and the waterproofness are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of construction engineering, and more specifically, to a steel-concrete assembled slope roof construction device and a construction method. Background Art

[0002] In the field of modern architecture, sloping roofs are favored for their drainage performance and aesthetic design, and have become an indispensable part of urban and new rural construction. However, the traditional sloping roof construction process is complex and has many challenges. Specifically, the process includes: formwork-roof panel reinforcement binding-roof panel concrete pouring-maintenance-leveling-wire mesh cement polystyrene sandwich panel-SBS modified asphalt waterproofing membrane construction-concrete color tile hanging. Although this series of construction steps can construct a sloping roof with both functionality and aesthetics, its particularity also brings significant problems: the inclination angle of the slope makes the formwork process extremely cumbersome, which not only increases the difficulty of construction, but also prolongs the construction period; at the same time, the concrete pouring of the roof panel is carried out on the inclined surface, which has extremely high technical requirements and is prone to quality problems; in addition, the entire construction process requires a lot of manual operation, which is not only inefficient, but also leads to high labor costs.

[0003] In order to solve these problems, prefabricated buildings have been vigorously promoted and developed. Some existing technologies have significantly improved construction efficiency by connecting prefabricated panels with grouting, but they are powerless when facing the large-span cantilevered eaves of large public buildings, and their application scope is limited. There are also some existing technologies that effectively prevent leakage problems by tightly assembling slope panels and waterproof panels. However, the structure does not take into account the anti-slip and long-term stability, and still faces the risk of cracking and water seepage. Some other existing technologies provide an assembled slope roof PC component connection device, in which the PC panel is a prefabricated assembled concrete panel, and the PC panel is connected and supported by a combination of strip panels, rods, connecting columns and other components. Its flexibility and stability provide strong support for the connection of the PC panel, significantly enhancing the practicality of the device, but when dealing with the challenges of large-span slope eaves construction, its solution is still insufficient. Summary of the invention

[0004] In view of the above defects or improvement needs of the prior art, the present invention provides a steel-concrete assembled slope roof construction device and construction method, which improves the rigidity of the main and secondary beam structures through the roof truss construction structure of prefabricated columns, main beams and secondary beams, successfully overcomes the challenge of large-span cantilever eaves design, prevents cracking and water seepage of the cantilever structure due to uneven force, and significantly reduces the risk of rainwater erosion, thereby enhancing the durability of the structure; through a variety of bolt connection systems, the structural components are tightly and firmly connected together, which improves the stability and safety of the entire device.

[0005] In order to achieve the above-mentioned purpose, according to the first aspect of the present invention, there is provided a steel-concrete assembled slope roof construction device, comprising a plurality of prefabricated columns with one end vertically fixed to the ground, a plurality of prefabricated main beams with two ends respectively fixed to the tops of two of the prefabricated columns and parallel to each other, a secondary beam perpendicular to the prefabricated main beam and with two ends respectively fixed to the tops of the prefabricated main beams, a positioning anti-skid water-stopping device fixed to the bottom of the secondary beam, and a prefabricated assembled concrete slab fixed to the top of the positioning anti-skid water-stopping device;

[0006] The positioning anti-slip and water-stopping device comprises a waterproof component at the bottom, a fastening structure located at the top of the waterproof component, and a long strip-shaped positioning structure fixed at the top of the waterproof component;

[0007] The prefabricated assembled concrete slab comprises a preset positioning hole matching the positioning structure and penetrating the prefabricated assembled concrete slab;

[0008] The fastening structure passes through the bottom of the secondary beam and the waterproof component from top to bottom in sequence to fix the secondary beam and the positioning anti-slip water-stop device; by inserting the positioning structure into the positioning preset hole, the prefabricated assembled concrete slab is fixed above the positioning anti-slip water-stop device, and the rigidity of the main and secondary beam structures is improved by the roof truss construction structure of prefabricated columns, prefabricated main beams and secondary beams.

[0009] Furthermore, the prefabricated main beam includes embedded bolts and an embedded structural panel located at the lower part of the secondary beam; a plurality of holes of the same size are arranged on the secondary beam and the embedded structural panel, and the holes match the embedded bolts. The embedded bolts pass through the secondary beam and the embedded structural panel in turn and are inserted into the interior of the prefabricated main beam to fix the prefabricated main beam and the secondary beam.

[0010] Furthermore, the prefabricated main beam also includes annular stirrups located at the bottom of the embedded structural panel, a main beam steel structure located in the middle of the stirrups, force-bearing main bars and beam anchor bars located in the gap between the stirrups and the main beam steel structure, and the lower part of the beam anchor bars is inserted into the interior of the prefabricated main beam.

[0011] Furthermore, the waterproof component includes a waterstop steel plate and a rubber waterstop strip, and reserved holes of the same size are arranged on the waterstop steel plate, the rubber waterstop strip and the secondary beam, and the reserved holes match the fastening structure, and the fastening structure is a fastening bolt.

[0012] Furthermore, the prefabricated assembled concrete slab also includes internal embedded steel bars, and the length of the embedded steel bars is greater than the thickness of the roof waterproof insulation layer.

[0013] Furthermore, the prefabricated assembled concrete slab also includes truss steel bars fixedly arranged on the upper surface, which serve as a supporting structure when pouring roof concrete.

[0014] Furthermore, the prefabricated assembled concrete slab also includes a retaining wall fixedly arranged on the upper surface, and there are several retaining walls and the spacing between each retaining wall is the same.

[0015] Furthermore, the bottom of the prefabricated assembled concrete slab has internal angles on the top, bottom, left and right sides that are compatible with the positioning anti-skid and water-stopping device, and the lower part of the cantilevered end of the prefabricated assembled concrete slab has no internal angle.

[0016] Furthermore, the inner corner at the lower end of the prefabricated assembled concrete slab coincides with the outer corner at the upper end of the prefabricated main beam, and the inner corner at the upper end of the prefabricated assembled concrete slab coincides with the outer corner at the lower end of the prefabricated main beam of the previous span; the contact surface between the prefabricated assembled concrete slab and the outer corner of the prefabricated main beam is padded with a positioning anti-slip water-stopping device.

[0017] According to a second aspect of the present invention, a steel-concrete assembled slope roof construction method is provided, which is implemented by using a steel-concrete assembled slope roof construction device as described above, comprising the following steps:

[0018] S1, prefabrication of components, standardized prefabrication and production of prefabricated columns, prefabricated main beams, positioning anti-slip water-stopping devices and prefabricated assembled concrete slabs in the factory;

[0019] S2, installing the prefabricated columns, positioning and laying out the lines, and hoisting the prefabricated columns to the set positions by machinery;

[0020] S3, installing the prefabricated main beam, setting up the slope roof support system, and after passing the acceptance, hoisting the prefabricated main beam to the upper part of the prefabricated column;

[0021] S4, installing the roof panel formwork, inspecting the positions of the prefabricated columns and prefabricated main beams, and installing the roof panel formwork after they are qualified;

[0022] S5, fix the prefabricated columns and prefabricated main beams, tie the steel bars of the connection nodes of the prefabricated columns and prefabricated main beams, and weld the prefabricated beam and column node steel structures. After acceptance, pour the node concrete to the bottom elevation of the secondary beam and the prefabricated assembled concrete slab; ensure that the embedded structural panels and embedded bolts exposed on the prefabricated main beams match the reserved hole positions of the secondary beams;

[0023] S6, installing a positioning anti-skid water-stopping device, and temporarily fixing the positioning anti-skid water-stopping device on the upper surface of the structure cast in S5;

[0024] S7, installing the secondary beam, hoisting the secondary beam, connecting the secondary beam to the embedded structural panel through the embedded bolts, and fixing the positioning anti-slip and water-stopping device to the secondary beam through the positioning structure;

[0025] S8, installing the prefabricated assembled concrete slab, hoisting the prefabricated assembled concrete slab in layers from bottom to top, aligning the positioning preset holes with the positioning bolts for hoisting;

[0026] S9, pouring, after all prefabricated assembled concrete slabs are fixed and installed, steel bars are tied, concrete is poured and maintained.

[0027] In general, the above technical solutions conceived by the present invention can achieve the following beneficial effects compared with the prior art:

[0028] 1. The construction device of the present invention improves the rigidity of the main and secondary beam structures by means of a roof truss construction structure of prefabricated columns, main beams and secondary beams, successfully overcomes the challenge of large-span cantilever eaves design, prevents cracking and water seepage of the cantilever structure due to uneven force, and significantly reduces the risk of rainwater erosion, thereby enhancing the durability of the structure; through a variety of bolt connection systems, the various structural components are tightly and firmly connected together, thereby improving the stability and safety of the entire device.

[0029] 2. The construction device of the present invention solves the problem that the concrete of the cast-in-place layer with a large slope is easy to flow during the pouring process, resulting in a loose concrete structure and potential leakage risks through a prefabricated assembled concrete slab with embedded steel bars and retaining ridges; at the same time, it takes into account the anti-slip requirements of the thermal insulation and waterproof layer on the later structural layer, providing a strong guarantee for the overall quality and durability of the building.

[0030] 3. The construction device of the present invention supplements the technical means and enhances the waterproof performance of the structure by positioning the anti-skid and water-stopping device.

[0031] 4. The construction device of the present invention reduces the complexity and difficulty of the operation through various prefabricated structures, which not only improves the construction efficiency and quality, but also ensures the consistency and stability of product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 A roof truss structure diagram provided for a preferred embodiment of the present invention;

[0033] Figure 2 A schematic diagram of a device provided for a preferred embodiment of the present invention;

[0034] Figure 3 A cross-sectional view of a primary and secondary beam node provided for a preferred embodiment of the present invention;

[0035] Figure 4 A cross-sectional view of a beam and slab provided for a preferred embodiment of the present invention;

[0036] Figure 5 A structural detail diagram of a positioning anti-skid water-stopping device provided for a preferred embodiment of the present invention;

[0037] Figure 6 The present invention is a schematic diagram of a process for constructing a steel-concrete assembled sloped roof according to an embodiment of the present invention.

[0038] In all the drawings, the same figure numbers represent the same technical features, specifically: 100-prefabricated columns, 200-prefabricated main beams, 210-embedded structural panels, 220-embedded bolts, 230-load-bearing main reinforcement, 240-hoops, 250-main beam steel structure, 260-beam anchor reinforcement, 300-secondary beams, 400-positioning anti-slip water-stopping device, 410-waterproof component, 411-waterstop steel plate, 412-rubber waterstop, 420-fastening bolts, 430-positioning structure, 500-prefabricated assembled concrete slabs, 510-positioning preset holes, 520-steps, 530-embedded steel bars, 540-truss steel bars. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0040] Based on the above problems, the present invention is used to solve a series of problems encountered during the construction of steel-concrete assembled slope roofs: ① The cantilevered eaves of the assembled roof with a large slope cannot be constructed with a large span, and the cantilevered eaves are subjected to unreasonable force and are prone to cracking; ② The PC board is easy to slide on a large slope and the joints of the board seams are prone to leakage; ③ The concrete of the cast-in-place layer with a large slope is easy to flow during the pouring process, resulting in a loose concrete structure and a potential leakage risk.

[0041] The present invention relates to the field of prefabricated roofs and steel-concrete construction, and in particular to the construction of large-slope prefabricated roofs of large public buildings, mainly including PC anti-skid water-stopping for sloped roofs, steel-concrete structure construction for cantilevered eaves of sloped roofs, and quality improvement construction technology for cast-in-place concrete of large-slope composite slabs.

[0042] The present invention is mainly divided into three parts, including steel-concrete large-span eaves cantilever construction technology, large-slope roof prefabricated composite slab positioning anti-skid water-stopping device technology, and prefabricated slope roof composite layer concrete pouring quality improvement technology.

[0043] According to the on-site roof construction process, the present invention sequentially sets up the full-floor support frame, installs the prefabricated steel concrete column beam and casts the beam-column joint, installs the roof PC board and auxiliary devices, ties the cast-in-place layer steel bars and casts the concrete. The invention content includes the following:

[0044] First, the prefabricated steel-concrete roof truss system is hoisted and installed. The system includes prefabricated steel-concrete columns, prefabricated steel-concrete main beams, fixed waterproof devices, and core steel structures in secondary beams. After the prefabricated steel-concrete columns and prefabricated steel-concrete main beams are hoisted into place, the columns and main beams, and the main beams and secondary beams are connected with high-strength bolts. The steel bars of the connection nodes between the main beams and columns are tied, and the node concrete is poured to the bottom elevation of the secondary beams and roof PC boards. At this point, the construction of the steel-concrete roof truss system is completed.

[0045] Secondly, the roof PC plate positioning anti-skid water-stop device is constructed. The device is a composite structure of steel plate and rubber water-stop, with fixing bolts and bolt holes distributed on it. After the construction of the formwork support frame is completed, the positioning anti-skid water-stop device is temporarily fixed at the predetermined position. After the beam-column connection node reaches the designed concrete strength, the main beam extension steel structure and the secondary beam steel structure are connected by bolts, and the anti-skid water-stop device and the secondary beam steel structure are connected by bolts at the same time.

[0046] Finally, the roof panel system is constructed. The PC board is hoisted, and the bolt holes of the board are aligned with the bolts of the positioning anti-skid water-stop device. The inner corner of the lower end of the PC board matches the outer corner of the upper end of the main beam (there is no inner corner at the lower end of the cantilevered PC board). After the inner corner of the upper end matches the outer corner of the lower end of the adjacent span main beam, the contact surface between the PC and the outer corner of the main beam is padded with a positioning anti-skid water-stop device and then the board is fixed. After all PC boards are fixed and installed, the steel bars are tied and concrete is poured.

[0047] Based on this system, a steel-concrete assembled slope roof construction device and construction method are formed.

[0048] The technology of the invention is reasonable and feasible, the structure is simple and convenient, the construction speed is fast, the economy is feasible, the integrity is good, and the energy saving and consumption reduction are reduced. This technical construction can well solve the problems of difficulty in fixing assembled large-slope roof composite slabs, structural water seepage at the connection between beams and slabs, and poor construction quality of cast-in-place concrete.

[0049] Specifically,

[0050] Please refer to Figure 1 and Figure 2 The present invention relates to a steel-concrete assembled sloping roof construction device, comprising a plurality of prefabricated columns 100 with one end vertically fixed to the ground, a plurality of prefabricated main beams 200 with both ends respectively fixed to the tops of two prefabricated columns 100 and parallel to each other, a secondary beam 300 perpendicular to the prefabricated main beam 200 and with both ends respectively fixed to the tops of the prefabricated main beam 200, a positioning anti-skid water-stopping device 400 fixed to the bottom of the secondary beam 300, and a prefabricated assembled concrete slab 500 fixed to the top of the positioning anti-skid water-stopping device 400. The stability of the overall device is ensured by directly stacking and connecting the various structures with each other;

[0051] The positioning anti-skid and water-stopping device 400 includes a waterproof component 410 at the bottom, a fastening structure located at the top of the waterproof component 410 , and a long strip-shaped positioning structure 430 fixed on the top of the waterproof component 410 .

[0052] The prefabricated assembled concrete panel 500 includes a preset positioning hole 510 that matches the positioning structure 420 and penetrates the prefabricated assembled concrete panel 500 .

[0053] Please refer to Figure 3 The prefabricated main beam 200 includes embedded bolts 220 and an embedded structural panel 210 located at the lower part of the secondary beam 300 (providing a flat and stable connection surface so that the secondary beam 300 can accurately dock with the prefabricated main beam 200); a plurality of holes of the same size are arranged on the secondary beam 300 and the embedded structural panel 210, and the holes match the embedded bolts 220. The embedded bolts 220 pass through the secondary beam 300 and the embedded structural panel 210 in turn and are inserted into the interior of the prefabricated main beam 200 to fix the prefabricated main beam 200 and the secondary beam 300.

[0054] Please refer to Figure 4 The prefabricated main beam 200 also includes an annular stirrup 240 located at the lower part of the embedded structural panel 210, a main beam steel structure 250 located in the middle of the stirrup 240, a main force reinforcement 230 and a beam anchoring bar 260 located at the gap between the stirrup 240 and the main beam steel structure 250, and the lower part of the beam anchoring bar 260 is inserted into the interior of the prefabricated main beam 200.

[0055] Please refer to Figure 5 The waterproof component 410 includes a waterstop steel plate 411 and a rubber waterstop strip 412. The waterstop steel plate 411, the rubber waterstop strip 412 and the secondary beam 300 are provided with reserved holes of the same size. The reserved holes match the fastening structure, and the fastening structure is a fastening bolt 420.

[0056] Please refer to Figure 2 The prefabricated assembled concrete slab 500 also includes internal embedded steel bars 530, and the length of the embedded steel bars 530 is greater than the thickness of the roof waterproof insulation layer.

[0057] The prefabricated assembled concrete slab 500 further includes truss steel bars 540 fixedly arranged on the upper surface, which serve as a supporting structure when pouring roof concrete.

[0058] The prefabricated assembled concrete slab 500 further includes a retaining wall 520 fixedly arranged on the upper surface. There are a plurality of retaining walls 520 and the spacing between each retaining wall 520 is the same.

[0059] The bottom of the prefabricated assembled concrete slab 500 has internal angles on the top, bottom, left and right sides that are compatible with the positioning anti-skid and water-stopping device 400, wherein the lower part of the cantilevered end of the prefabricated assembled concrete slab 500 has no internal angle.

[0060] The inner corner at the lower end of the prefabricated assembled concrete slab 500 coincides with the outer corner at the upper end of the prefabricated main beam 200, and the inner corner at the upper end of the prefabricated assembled concrete slab 500 coincides with the outer corner at the lower end of the prefabricated main beam 200 of the previous span; the contact surface between the prefabricated assembled concrete slab 500 and the outer corner of the prefabricated main beam 200 is padded with a positioning anti-slip water-stopping device 400.

[0061] During operation, the fastening structure passes through the lower part of the secondary beam 300 and the waterproof component 410 from top to bottom in sequence to fix the secondary beam 300 and the positioning anti-slip water-stopping device 400; by inserting the positioning structure 430 into the positioning preset hole 510, the prefabricated assembled concrete slab 500 is fixed above the positioning anti-slip water-stopping device 400, and the rigidity of the main and secondary beam structures is improved through the roof truss construction structure of prefabricated columns 100, prefabricated main beams 200 and secondary beams 300.

[0062] like Figure 6 As shown, as another aspect of the present invention, it also relates to a construction method of a steel-concrete assembled slope roof construction device, comprising the following steps:

[0063] S1, component prefabrication, standardized prefabrication and production of prefabricated columns 100, prefabricated main beams 200, positioning anti-slip water-stopping devices 400 and prefabricated assembled concrete panels 500 in the factory;

[0064] S2, installing the prefabricated column 100, positioning and laying out, and mechanically lifting the prefabricated column 100 to a set position;

[0065] S3, installing the prefabricated main beam 200, setting up the slope roof support system, and after passing the acceptance, hoisting the prefabricated main beam 200 to the upper part of the prefabricated column 100;

[0066] S4, installing the roof panel formwork, inspecting the positions of the prefabricated columns 100 and the prefabricated main beams 200, and installing the roof panel formwork after they are qualified;

[0067] S5, fix the prefabricated column 100 and the prefabricated main beam 200, tie the node steel bars of the prefabricated column 100 and the prefabricated main beam 200 and weld the prefabricated beam and column node steel structures, and pour the node concrete to the bottom elevation of the secondary beam 300 and the prefabricated assembled concrete slab 500 after acceptance; ensure that the embedded structural panel 210 and the embedded bolts 220 exposed on the prefabricated main beam 200 match the reserved hole position of the secondary beam 300;

[0068] S6, installing the positioning anti-skid water-stopping device 400, and temporarily fixing the positioning anti-skid water-stopping device 400 on the upper surface of the structure cast in S5;

[0069] S7, installing the secondary beam 300, hoisting the secondary beam 300, connecting the secondary beam 300 with the embedded structural panel 210 through the embedded bolts 220, and fixing the positioning anti-slip and water-stopping device 400 to the secondary beam 300 through the positioning structure 420;

[0070] S8, installing the prefabricated assembled concrete slab 500, hoisting the prefabricated assembled concrete slab 500 in layers from bottom to top, aligning the positioning preset holes 510 with the positioning bolts 430 for hoisting;

[0071] S9, pouring, after all prefabricated assembled concrete slabs 500 are fixed and installed, steel bars are tied, concrete is poured and maintained.

[0072] It will be easily understood by those skilled in the art that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A steel-concrete assembled slope roof construction device, characterized in that: The invention comprises a plurality of prefabricated columns (100) with one end vertically fixed to the ground, a plurality of prefabricated main beams (200) with both ends respectively fixed to the tops of two prefabricated columns (100) and parallel to each other, a secondary beam (300) perpendicular to the prefabricated main beam (200) and with both ends respectively fixed to the tops of the prefabricated main beam (200), a positioning anti-skid water-stopping device (400) fixed to the bottom of the secondary beam (300), and a prefabricated assembled concrete slab (500) fixed to the top of the positioning anti-skid water-stopping device (400); The positioning anti-slip and water-stopping device (400) comprises a waterproof component (410) at the bottom, a fastening structure located at the top of the waterproof component (410), and a long strip-shaped positioning structure (430) fixed at the top of the waterproof component (410); The prefabricated assembled concrete panel (500) comprises a preset positioning hole (510) matching the positioning structure (420) and penetrating the prefabricated assembled concrete panel (500); The fastening structure passes through the bottom of the secondary beam (300) and the waterproof component (410) from top to bottom in sequence to fix the secondary beam (300) and the positioning anti-skid and waterproof device (400); by inserting the positioning structure (430) into the positioning preset hole (510), the prefabricated assembled concrete slab (500) is fixed above the positioning anti-skid and waterproof device (400), and the rigidity of the main and secondary beam structures is improved through the roof truss construction structure of the prefabricated column (100), the prefabricated main beam (200) and the secondary beam (300).

2. The steel-concrete assembled slope roof construction device according to claim 1, characterized in that: The prefabricated main beam (200) comprises embedded bolts (220) and an embedded structural panel (210) located at the lower part of the secondary beam (300); a plurality of holes of the same size are arranged on the secondary beam (300) and the embedded structural panel (210), the holes and the embedded bolts (220) match each other, the embedded bolts (220) pass through the secondary beam (300) and the embedded structural panel (210) in sequence and are inserted into the interior of the prefabricated main beam (200), so as to fix the prefabricated main beam (200) and the secondary beam (300).

3. The steel-concrete assembled slope roof construction device according to claim 2 is characterized in that: The prefabricated main beam (200) further comprises an annular stirrup (240) located at the lower part of the embedded structural panel (210), a main beam steel structure (250) located in the middle of the stirrup (240), a main force-bearing reinforcement (230) and a beam anchoring reinforcement (260) located at the gap between the stirrup (240) and the main beam steel structure (250), wherein the lower part of the beam anchoring reinforcement (260) is inserted into the interior of the prefabricated main beam (200).

4. The steel-concrete assembled slope roof construction device according to any one of claims 1 to 3, characterized in that: The waterproof component (410) includes a waterstop steel plate (411) and a rubber waterstop strip (412). The waterstop steel plate (411), the rubber waterstop strip (412) and the secondary beam (300) are provided with reserved holes of the same size. The reserved holes match the fastening structure, and the fastening structure is a fastening bolt (420).

5. The steel-concrete assembled slope roof construction device according to any one of claims 1 to 3, characterized in that: The prefabricated assembled concrete slab (500) further comprises internal embedded steel bars (530), the length of the embedded steel bars (530) being greater than the thickness of the roof waterproof insulation layer.

6. The steel-concrete assembled slope roof construction device according to claim 5, characterized in that: The prefabricated assembled concrete slab (500) further comprises truss steel bars (540) fixedly arranged on the upper surface, serving as a supporting structure when pouring roof concrete.

7. The steel-concrete assembled slope roof construction device according to claim 6, characterized in that: The prefabricated assembled concrete slab (500) further comprises a retaining wall (520) fixedly arranged on the upper surface, and there are a plurality of retaining walls (520) and the spacing between each retaining wall (520) is the same.

8. The steel-concrete assembled slope roof construction device according to claim 7, characterized in that: The bottom of the prefabricated assembled concrete slab (500) has inner corners on the top, bottom, left and right sides that are compatible with the positioning anti-skid and water-stopping device (400), and the lower part of the cantilevered end of the prefabricated assembled concrete slab (500) has no inner corner.

9. The steel-concrete assembled slope roof construction device according to claim 8, characterized in that: The inner corner at the lower end of the prefabricated assembled concrete slab (500) matches the outer corner at the upper end of the prefabricated main beam (200), and the inner corner at the upper end of the prefabricated assembled concrete slab (500) matches the outer corner at the lower end of the prefabricated main beam (200) of the previous span; the contact surface between the prefabricated assembled concrete slab (500) and the outer corner of the prefabricated main beam (200) is padded with a positioning anti-skid water-stopping device (400).

10. A steel-concrete assembled slope roof construction method, characterized in that: The steel-concrete assembled slope roof construction device according to any one of claims 1 to 9 is used to implement the method, comprising the following steps: S1, component prefabrication, standardized prefabrication and production of prefabricated columns (100), prefabricated main beams (200), positioning anti-slip water-stopping devices (400) and prefabricated assembled concrete panels (500) in the factory; S2, installing the prefabricated column (100), positioning and laying out, and mechanically lifting the prefabricated column (100) to a set position; S3, installing the prefabricated main beam (200), setting up the slope roof support system, and after passing the acceptance inspection, hoisting the prefabricated main beam (200) to the upper part of the prefabricated column (100); S4, installing the roof panel formwork, inspecting the positions of the prefabricated columns (100) and the prefabricated main beams (200), and installing the roof panel formwork after they are qualified; S5, fix the prefabricated column (100) and the prefabricated main beam (200), tie the node steel bars of the prefabricated column (100) and the prefabricated main beam (200) and weld the prefabricated beam and column node steel structures, and pour the node concrete to the bottom elevation of the secondary beam (300) and the prefabricated assembled concrete slab (500) after acceptance; ensure that the embedded structural panel (210) and the embedded bolts (220) exposed on the prefabricated main beam (200) match the reserved hole position of the secondary beam (300); S6, installing a positioning anti-skid water-stopping device (400), and temporarily fixing the positioning anti-skid water-stopping device (400) on the upper surface of the structure cast in S5; S7, installing the secondary beam (300), hoisting the secondary beam (300), connecting the secondary beam (300) to the embedded structural panel (210) via the embedded bolts (220), and fixing the positioning anti-slip and water-stopping device (400) to the secondary beam (300) via the positioning structure (420); S8, installing the prefabricated assembled concrete slab (500), hoisting the prefabricated assembled concrete slab (500) in layers from bottom to top, aligning the positioning preset holes (510) with the positioning bolts (430) for hoisting; S9, pouring, after all prefabricated assembled concrete slabs (500) are fixed and installed, steel bars are tied, concrete is poured and maintained.

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