Prefabricated floor slab old house antique roof repairing structure and repairing method

Abstract

The invention discloses a prefabricated floor slab old house antique roof repairing structure and method, and belongs to the technical field of roof structures. A prefabricated floor old house antique roof repairing structure comprises a concrete layer, the concrete layer is located above a prefabricated slab, the upper surface of the concrete layer is in a cone shape with two inclined faces, a framework for supporting the concrete layer is arranged in the concrete layer, a heat preservation layer is arranged above the concrete layer, and a waterproof layer is arranged above the heat preservation layer. A conical keel is arranged above the waterproof layer, a tile layer is arranged above the keel, and a water collecting groove is formed in the bottom end of the keel and located under the bottom end of the tile layer. By the adoption of the prefabricated floor slab old house antique roof repairing structure and method, the problems that existing prefabricated floor slab antique repairing is poor in waterproof and anti-seepage effect and low in construction efficiency, and water is not prone to being treated in a centralized mode can be solved, and the prefabricated floor slab old house antique roof repairing structure and method have the advantages of being stable in structure and high in strength.

Description

Technical Field

[0001] The present invention relates to the technical field of roof structures, and in particular to a prefabricated floor slab antique roof repair structure and a repair method for an old residential building. Background Art

[0002] Since prefabricated floor slabs have the advantages of easy installation and high construction efficiency, some old houses use prefabricated floor slabs for roof structures. However, there are relatively obvious joints at the joints of the prefabricated floor slabs. As time goes by, the materials age, the roof cracks, the sealing layer is damaged, and the prefabricated floor slabs roof seepage occurs, necessitating the repair of the prefabricated floor slab roof.

[0003] The existing repair methods for prefabricated floor slabs mostly adopt the method of re-laying the waterproof layer on the top of the roof or performing fixed-point repair treatment on the leaking parts. Since the waterproof layer is exposed to the outside, it is greatly affected by the external environment, and the waterproof life of the waterproof layer is short, so the service life of such repair methods is relatively short. There is also antique roof repair for prefabricated floor slabs. The antique roof repair of prefabricated floor slabs is to set a keel on the top of the roof, and then lay antique tiles on top of the keel. In the existing antique roof repair methods, most of the keels are directly welded with steel pipes, and the construction efficiency is relatively low. The sealing of the joints of the tiles is poor, which is easy to cause water seepage, and the waterproof and anti-seepage effects are relatively poor. In addition, the water on the antique tile roof falls from the entire roof with the tiles, and it is not easy to collect and centrally treat the water, forming a water drop pit around the house. Summary of the invention

[0004] The purpose of the present invention is to provide a prefabricated floor slab antique roof repair structure and repair method for old residential buildings, so as to solve the problems of poor waterproofing and anti-seepage effects, low construction efficiency and difficulty in centralized water treatment in existing prefabricated floor slab antique repairs.

[0005] To achieve the above-mentioned purpose, the present invention provides an antique roof repair structure for an old residential building with a prefabricated floor, comprising a concrete layer, wherein the concrete layer is located above the prefabricated slab, the upper surface of the concrete layer is a cone with two inclined surfaces, a skeleton supporting the concrete layer is arranged inside the concrete layer, an insulation layer is arranged above the concrete layer, a waterproof layer is arranged above the insulation layer, a conical keel is arranged above the waterproof layer, a tile layer is arranged above the keel, a water collecting trough is arranged at the bottom end of the keel, and the water collecting trough is located directly below the bottom end of the tile layer.

[0006] Preferably, the skeleton includes a plurality of connectors perpendicular to the prefabricated panels, the connectors include a fixing plate, a plurality of fixing holes are provided on the fixing plate, the fixing plate is fixedly connected to the prefabricated panel, and a plurality of conical connecting ribs are provided on the upper surface of the fixing plate in a linear array along the length direction of the fixing plate; a steel mesh is provided above the fixing plate, the steel mesh includes vertically arranged transverse ribs and vertical ribs, the vertical ribs are provided along the length direction of the fixing plate, the vertical ribs are located below the connecting ribs and are fixedly connected to the connecting ribs, and the transverse ribs are fixedly connected to the vertical ribs.

[0007] Preferably, the upper surface of the precast panel is provided with a plurality of grooves along the length direction of the precast panel for increasing the connection strength between the precast panel and the concrete layer.

[0008] Preferably, the insulation layer includes an insulation board and a water guide board, the water guide board is located below the insulation board, and the insulation board connection located at the ridge is connected by a waterproof insulation sealant; the insulation board includes a plurality of first insulation boards and second insulation boards, the first insulation board is provided with a first transverse groove, the second insulation board is provided with a second transverse groove connected to the first transverse groove, the second insulation board is provided with a first vertical groove, and the first vertical groove is connected to the second transverse groove.

[0009] Preferably, the water guide plate includes a plurality of first water guide plates and second water guide plates, the first water guide plate is located directly below the first thermal insulation plate, a first transverse water guide groove is provided on the first water guide plate, the second water guide plate is located directly below the second thermal insulation plate, a second transverse water guide groove is provided on the second water guide plate, the second water guide groove is connected to the first water guide groove, a second vertical groove is provided on the second water guide plate, and the second vertical groove is connected to both the first vertical groove and the second water guide groove; a first side plate is provided directly below the first thermal insulation plate located at one end of the thermal insulation layer, a third water guide groove connected to the second water guide groove is provided on the first side plate, a first drain outlet connected to the third water guide groove is provided on the first side plate, a second side plate is provided directly below the first thermal insulation plate located at the other end of the thermal insulation layer, a fourth water guide groove connected to the second water guide groove is provided on the second side plate, and a second drain outlet connected to the fourth water guide groove is provided on the second side plate.

[0010] Preferably, the waterproof layer includes a first waterproof sheet and a second waterproof sheet, the second waterproof sheet is laid in the first transverse groove, the second transverse groove, the first water guide groove, the second water guide groove, the third water guide groove and the fourth water guide groove, the first waterproof sheet is laid on the upper surfaces of the first thermal insulation board, the second thermal insulation board, the first water guide plate, the second water guide plate, the first side plate and the second side plate, the first waterproof sheet overlaps the second waterproof sheet, the top end of the first waterproof sheet is located below the second waterproof sheet above it, and the bottom end of the first waterproof sheet is located above the second waterproof sheet below it, the third waterproof sheet is laid in the first vertical groove and the second vertical groove, the third waterproof sheet overlaps the first waterproof sheet, and both ends of the third waterproof sheet are located below the first waterproof sheet; a supplementary layer for improving the waterproof effect of the ridge is provided above the waterproof layer at the ridge.

[0011] Preferably, the keel includes a plurality of support frames in a linear array, the support frames are fixedly arranged above the waterproof layer, vertical keels are fixedly arranged above the support frames, the vertical keels are connected by transverse keels, the transverse keels are connected to the vertical keels by second connecting seats, a mounting seat for fixing the tile layer is arranged above the transverse keels, and the upper surface of the mounting seat is adapted to the shape of the tiles; the second connecting seat includes a U-shaped second slot, second connecting plates connected to the transverse keels are arranged on both sides of the second slot, and the vertical keels are arranged in the second slot.

[0012] Preferably, the support frame includes a bottom rod, which is fixedly connected to the waterproof layer, a top rod is arranged above the bottom rod, the bottom end of the top rod is fixedly connected to the bottom rod, the top end of the top rod is connected to the bottom rod through the support rod, the top rod forms a conical structure of the support frame, and a reinforcing rod is arranged between the top rod and the bottom rod; the bottom rods of adjacent support frames are connected by a connecting rod, and the connecting rod is connected to the bottom rod through a first connecting seat; the first connecting seat includes a U-shaped first slot, a first connecting plate is arranged on one side of the top end of the first slot, and the first connecting seat is fixedly connected to the bottom rod through the first connecting plate.

[0013] Preferably, the tile layer includes S-shaped tiles, a boss is provided on the lower surface of one end of the tile, a groove matched with the boss is provided on the lower surface of the other end of the tile, tiles in the same row are overlapped by the boss and the groove, mounting holes are provided at both ends of the tile, the tiles are connected to the mounting seat through the mounting holes, vertical keels support the tiles under the tiles, a first sealing gasket is provided on the upper surface of one side of the tile, a second sealing gasket matched with the first sealing gasket is provided on the lower surface of the other side of the tile, and tiles in adjacent columns are overlapped and sealed by the first sealing gasket and the second sealing gasket.

[0014] The repair method of the antique roof repair structure of the old residential building based on the above-mentioned prefabricated floor slab comprises the following steps: S1. A groove is formed on the top of the prefabricated board; a connecting piece is laid on the top of the prefabricated board perpendicularly to the prefabricated board, and a fixing plate of the connecting piece is fixed on the prefabricated board by steel nails; vertical bars are passed through the inside of the connecting bars, and the vertical bars are fixedly connected to the connecting bars by tying or welding, and transverse bars are laid on the top of the vertical bars, and the transverse bars are fixedly connected to the vertical bars by tying or welding; concrete is poured on the top of the prefabricated board, and a concrete layer is obtained after curing; S2, laying an insulation layer on top of the concrete layer, the first transverse grooves and the second transverse grooves on the first insulation board and the second insulation board are aligned and connected, the first vertical groove on the second insulation board is aligned and connected with the second vertical groove on the second water guide board, the first side board, the first water guide board, the second water guide board, the third water guide groove on the second side board, the first water guide groove, the second water guide groove, and the fourth water guide groove are connected, and the first insulation board, the second insulation board, the first side board, the first water guide board, the second water guide board, and the second side board are fixed on the concrete layer by steel nails; the connection between the insulation layers on both sides of the ridge is filled with waterproof insulation sealant; S3, laying the second waterproof sheet in the first transverse groove, the second transverse groove, the first water guide groove, the second water guide groove, the third water guide groove, and the fourth water guide groove by gluing, laying the third waterproof sheet in the first vertical groove and the second vertical groove by gluing, laying the first waterproof sheet on the first insulation board, the second insulation board, the first side board, the first water guide plate, the second water guide plate, and the second side board by gluing; laying the supplementary layer on the waterproof layer laid at the ridge by gluing; S4, assemble and weld the bottom rod according to the slope of the concrete layer, install the support rod at the connection of the bottom rod, install the top rod between the top of the support rod and the end of the bottom rod, and set the reinforcing rod between the top rod and the bottom rod; fix the first connecting seat on the side of the bottom rod, fix the support frame above the waterproof layer, fix the bottom rod to the concrete layer by steel nails, and clamp the two ends of the connecting rod in the first clamping groove of the first connecting seat of the adjacent support frame respectively, and fix the connecting rod to the concrete layer by steel nails; S5. Lay a transverse keel fixed with a second connecting seat above the top rod, connect the transverse keel to the top rod through screws, fix the mounting seat above the transverse keel, set a vertical keel between the transverse keels, and clamp the vertical keel in the second clamping groove of the second connecting seat; fix the water collecting trough at the end of the bottom rod; S6. Lay tiles on top of the vertical keel. The tiles are laid from right to left and from bottom to top. The tiles are placed on the vertical keel. The two ends of the tiles are placed on adjacent mounting seats. One end of the tile is fixed to the mounting seat by passing a screw through the mounting hole. The protrusion at the other end of the tile is stuck in the groove of the tile above it. The screws pass through the mounting holes of the two tiles to fix both tiles on the mounting seat. One side of the adjacent tile is placed on the side of the laid tiles. The first sealing gasket is in close contact with the second sealing gasket. Lay ridge tiles at the ridge. The ridge tiles are located above the tiles on both sides. The two ends of the ridge tiles are fixed to the mounting seats on both sides of the roof. Complete the tile layer laying.

[0015] The advantages and positive effects of the repair method of the prefabricated floor slab antique roof repair structure of an old residential building described in the present invention are: 1. The present invention sets a concrete layer above the prefabricated floor slab, and the concrete layer is cast-in-place concrete, which improves the sealing and waterproofing effect of the prefabricated slab and improves the strength of the roof. The upper surface of the concrete layer is a cone with two inclined surfaces, which facilitates the smooth discharge of water above the concrete layer from the roof, avoids water accumulation on the roof, and is conducive to improving the waterproofing effect. A skeleton supporting the concrete layer is set inside the concrete layer, and the skeleton is a steel skeleton to improve the strength of the concrete layer.

[0016] 2. The water in the thermal insulation layer of the present invention flows into the second vertical groove through the first vertical groove, then flows into the second water guide groove, and then is discharged at a fixed point through the first water guide groove, the third water guide groove or the fourth water guide groove through the first drain port or the second drain port, which is not only conducive to reducing the accumulation of water above the thermal insulation layer, but also can discharge water at a fixed point, which is convenient for centralized treatment of water.

[0017] 3. The top of the first waterproof sheet of the present invention is located below the second waterproof sheet above it, and the bottom of the first waterproof sheet is located above the second waterproof sheet below it, which is not conducive to water infiltration into the insulation layer from the connection between the first waterproof sheet and the second waterproof sheet.

[0018] 4. The upper surface of the mounting seat of the present invention is adapted to the shape of the tile, so that the two ends of the tile can fully fit with the upper surface of the mounting seat, which is conducive to improving the stability of the connection between the tile and the mounting seat. The horizontal keel is connected to the vertical keel through the second connecting seat, and the connecting rod is connected to the bottom rod through the first connecting seat, which is convenient for the construction of the vertical keel and the connecting rod, and is conducive to improving the construction efficiency of the keel.

[0019] 5. The bottom rod ends of adjacent support frames of the present invention are connected by a water collecting trough, which is located directly below the bottom of the tile layer. The water collecting trough is used to collect water sliding down from the tile layer. The water collecting trough is provided with drainage holes. The water collecting trough discharges water at a fixed point to prevent water from falling randomly on the roof, which is also conducive to the centralized treatment of water.

[0020] 6. The vertical keel of the present invention supports the tiles under the tiles, which is beneficial to improve the stability of the tiles. A first sealing pad is fixedly provided on the upper surface of one side of the tile, and a second sealing pad matched with the first sealing pad is fixedly provided on the lower surface of the other side of the tile. The tiles in adjacent rows are sealed and overlapped by the first sealing pad and the second sealing pad, which is beneficial to improve the sealing effect between the tiles, reduce water leakage, and improve the waterproof and anti-seepage effect of the roof.

[0021] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of an embodiment of the present invention; Figure 2This is a schematic diagram of the internal three-dimensional structure of a concrete layer according to an embodiment of the present invention; Figure 3 It is a schematic diagram of the front view structure inside the concrete layer of an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of a connector according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of a prefabricated panel according to an embodiment of the present invention; Figure 6 It is a schematic diagram of the three-dimensional structure of the thermal insulation layer according to an embodiment of the present invention; Figure 7 This is a schematic diagram of the three-dimensional structure of the first insulation board according to an embodiment of the present invention; Figure 8 This is a schematic diagram of the three-dimensional structure of the second insulation board according to an embodiment of the present invention; Fig. 9 This is a schematic diagram of the three-dimensional structure of the first water guide plate according to an embodiment of the present invention; Fig.10 This is a schematic diagram of the three-dimensional structure of the second water guide plate according to an embodiment of the present invention; Fig.11 This is a schematic diagram of the three-dimensional structure of a first side plate according to an embodiment of the present invention; Fig.12 It is a schematic diagram of the three-dimensional structure of the second side plate according to an embodiment of the present invention; Fig.13 This is a schematic diagram of the three-dimensional structure of the waterproof layer according to an embodiment of the present invention; Fig.14 This is a schematic diagram of the three-dimensional structure of the keel according to an embodiment of the present invention; Fig.15 This is a schematic diagram of the front view structure of the keel of an embodiment of the present invention; Fig.16 This is a schematic diagram of the three-dimensional structure of a support frame according to an embodiment of the present invention; Fig.17 This is a schematic diagram of the three-dimensional structure of the first connecting socket according to an embodiment of the present invention; Fig.18 This is a schematic diagram of the three-dimensional structure of the second connecting socket according to an embodiment of the present invention; Fig.19 It is a schematic diagram of the three-dimensional structure of the tile layer according to an embodiment of the present invention; Fig. 20 A schematic diagram of a three-dimensional structure of a tile according to an embodiment of the present invention; Fig.21 It is a schematic diagram of the front view structure of a tile according to an embodiment of the present invention.

[0023] Reference numerals 1. Prefabricated board; 11. Grooving; 2. Concrete layer; 21. Fixing plate; 22. Fixing hole; 23. Connecting reinforcement; 24. Vertical reinforcement; 25. Horizontal reinforcement; 3. Insulation layer; 31. First insulation board; 32. Second insulation board; 33. First water guide board; 34. Second water guide board; 35. First side board; 36. Second side board; 37. First transverse groove; 38. Second transverse groove; 39. First vertical groove; 310. Second vertical groove; 311. First water guide groove; 312. Second water guide groove; 313. Third water guide groove; 314. First drainage outlet; 315. Fourth water guide groove; 316. Second drainage outlet; 4. Waterproof layer; 41. First waterproof sheet; 42. Second waterproof sheet; 5. Subsidy layer; 6. keel; 61. bottom rod; 62. top rod; 63. reinforcing rod; 64. connecting rod; 65. first connecting seat; 66. supporting rod; 67. transverse keel; 68. vertical keel; 69. second connecting seat; 610. mounting seat; 611. first slot; 612. first connecting plate; 613. second slot; 614. second connecting plate; 7. Tile layer; 71. Tile; 72. Boss; 73. Mounting hole; 74. First sealing gasket; 75. Second sealing gasket; 8. Water collecting tank; DETAILED DESCRIPTION

[0024] In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the invented product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, it should also be noted that, unless otherwise clearly specified and limited, the terms "setting", "installation", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0026] like Figure 1As shown. A prefabricated floor slab antique roof repair structure for old houses includes a concrete layer 2, which is located above the prefabricated board 1. The concrete layer 2 is cast-in-place concrete, which improves the sealing and waterproofing effect of the prefabricated board 1 and improves the strength of the roof. The upper surface of the concrete layer 2 is a cone with two inclined surfaces, which is convenient for the water above the concrete layer 2 to be discharged from the roof smoothly, avoiding water accumulation on the roof, and is conducive to improving the waterproofing effect. A skeleton supporting the concrete layer 2 is arranged inside the concrete layer 2, and the skeleton is a steel skeleton to improve the strength of the concrete layer 2. An insulation layer 3 is arranged above the concrete layer 2, and the insulation layer 3 adopts the existing extruded board to improve the thermal insulation effect of the roof. A waterproof layer 4 is arranged above the insulation layer 3, and the waterproof layer 4 is a waterproof roll material, which is conducive to improving the waterproofing effect of the roof and preventing rainwater from penetrating into the insulation layer 3. A conical keel 6 is arranged above the waterproof layer 4, and the keel 6 is used to form a conical antique roof and provide support for the installation of the tile layer 7. A tile layer 7 is arranged above the keel 6.

[0027] like Figure 2 , Figure 3 , Figure 4 As shown. The skeleton includes a plurality of connectors perpendicular to the prefabricated plate 1, and the same connector connects the prefabricated parts laid in parallel. The connector includes a fixed plate 21, which is a steel plate. The fixed plate 21 is provided with a plurality of fixing holes 22, and the fixed plate 21 is fixedly connected to the prefabricated plate 1 through the fixing holes 22. The upper surface of the fixed plate 21 is fixedly provided with a plurality of conical connecting ribs 23 in a linear array along the length direction of the fixed plate 21. The connecting ribs 23 are steel bars, and the connecting ribs 23 are welded and fixedly connected to the fixed plate 21. A steel mesh is provided above the fixed plate 21, and the steel mesh includes vertically arranged transverse ribs 25 and vertical ribs 24. The vertical ribs 24 are provided along the length direction of the fixed plate 21, and the vertical ribs 24 are located below the connecting ribs 23 and are fixedly connected to the connecting ribs 23. The transverse ribs 25 are fixedly connected to the vertical ribs 24.

[0028] like Figure 5 As shown. The upper surface of the precast panel 1 is provided with a plurality of grooves 11 along the length direction of the precast panel 1 to increase the connection strength between the precast panel 1 and the concrete layer 2. The width of the grooves 11 is not greater than 5 cm and the thickness is not greater than 1 cm to avoid affecting the strength of the precast panel 1. Concrete is filled in the grooves 11 to increase the connection area between the concrete and the precast panel 1, thereby facilitating the improvement of the connection strength between the concrete layer 2 and the precast panel 1.

[0029] like Figure 6 As shown. The insulation layer 3 includes an insulation board and a water guide board. The water guide board is located below the insulation board. The water guide board is located to discharge rainwater falling on the insulation layer 3 at a fixed point, reducing water leakage, which is beneficial to improving the waterproof and moisture-proof effect of the roof. The insulation board connection at the ridge is connected by a waterproof and thermal insulation sealant.

[0030] like Figure 7 , Figure 8 As shown. The insulation board includes a plurality of first insulation boards 31 and second insulation boards 32. The first insulation board 31 is provided with a first transverse groove 37, and the second insulation board 32 is provided with a second transverse groove 38 connected with the first transverse groove 37. The second insulation board 32 is provided with a first vertical groove 39, and the first vertical groove 39 is connected with the second transverse groove 38. Water on the insulation layer 3 falls into the first transverse groove 37 and then gathers in the first vertical groove 39. The first transverse groove 37 of the first insulation board 31 at both ends of the roof is provided with a blind end to prevent water from flowing out of the roof through the first transverse groove 37.

[0031] like Fig. 9 , Fig.10 , Fig.11 , Fig.12 As shown. The water guide plate includes a plurality of first water guide plates 33 and second water guide plates 34. The first water guide plate 33 is located directly below the first thermal insulation plate 31, and a transverse first water guide groove 311 is provided on the first water guide plate 33. The second water guide plate 34 is located directly below the second thermal insulation plate 32, and a transverse second water guide groove 312 is provided on the second water guide plate 34, and the second water guide groove 312 is connected to the first water guide groove 311. The second water guide plate 34 is provided with a second vertical groove 310, and the second vertical groove 310 is connected to both the first vertical groove 39 and the second water guide groove 312. A first side plate 35 is provided directly below the first thermal insulation plate 31 at one end of the thermal insulation layer 3, and a third water guide groove 313 connected to the second water guide groove 312 is provided on the first side plate 35, and a first drain port 314 connected to the third water guide groove 313 is provided on the first side plate 35. A second side plate 36 is disposed directly below the first insulation board 31 at the other end of the insulation layer 3. A fourth water channel 315 communicating with the second water channel 312 is disposed on the second side plate 36. A second drain port 316 communicating with the fourth water channel 315 is disposed on the second side plate 36. One end of the third water channel 313 and the fourth water channel 315 are both blind ends.

[0032] The water in the insulation layer 3 flows into the second vertical groove 310 through the first vertical groove 39, then flows into the second water guide groove 312, and is discharged at a fixed point through the first water guide groove 311, the third water guide groove 313 or the fourth water guide groove 315 through the first drain port 314 or the second drain port 316. This not only helps to reduce the accumulation of water above the insulation layer 3, but also can discharge the water at a fixed point, which is convenient for centralized treatment of the water.

[0033] like Fig.13As shown. The waterproof layer 4 includes a first waterproof sheet 41 and a second waterproof sheet 42. The second waterproof sheet 42 is laid in the first transverse groove 37, the second transverse groove 38, the first water guide groove 311, the second water guide groove 312, the third water guide groove 313 and the fourth water guide groove 315. The first waterproof sheet 41 is laid on the upper surface of the first insulation board 31, the second insulation board 32, the first water guide plate 33, the second water guide plate 34, the first side plate 35 and the second side plate 36. The first waterproof sheet 41 overlaps with the second waterproof sheet 42 to ensure the waterproof effect. The top of the first waterproof sheet 41 is located below the second waterproof sheet 42 above it, and the bottom of the first waterproof sheet 41 is located above the second waterproof sheet 42 below it, which is not conducive to water infiltration from the connection between the first waterproof sheet 41 and the second waterproof sheet 42 into the insulation layer 3. The third waterproof sheet is laid in the first vertical groove 39 and the second vertical groove 310. The third waterproof sheet overlaps with the first waterproof sheet, and both ends of the third waterproof sheet are located below the first waterproof sheet 41. The first waterproof sheet 41, the second waterproof sheet 42 and the third waterproof sheet are bent at the connection between the horizontal groove and the vertical groove, and fixed on the side walls of the horizontal groove and the vertical groove to ensure the connectivity of the horizontal groove, the vertical groove and the water guide groove. A supplementary layer 5 is provided above the waterproof layer 4 at the ridge to improve the waterproof effect of the ridge. The first waterproof sheet 41, the second waterproof sheet 42, the third waterproof sheet and the supplementary layer 5 are all made of existing waterproof coiled materials and fixed on the upper surface of the thermal insulation layer 3 by gluing or steel bars.

[0034] like Fig.14 As shown. The keel 6 includes a plurality of support frames in a linear array, which are fixedly arranged above the waterproof layer 4 to support the entire keel 6. A vertical keel 68 is fixedly arranged above the support frame, and the vertical keels 68 are connected by a transverse keel 67. The transverse keel 67 is connected to the vertical keel 68 by a second connecting seat 69. A mounting seat 610 for fixing the tile layer 7 is fixedly arranged above the transverse keel 67. The upper surface of the mounting seat 610 is adapted to the shape of the tile 71, so that the two ends of the tile 71 can fully fit with the upper surface of the mounting seat 610, which is conducive to improving the stability of the connection between the tile 71 and the mounting seat 610.

[0035] like Fig.18 The second connecting seat 69 includes a U-shaped second slot 613, and second connecting plates 614 connected to the transverse keel 67 are fixedly arranged on both sides of the second slot 613. The second connecting plates 614 are fixed to the side of the transverse keel 67 by screws. The vertical keel 68 is clamped in the second slot 613. The transverse keel 67 and the vertical keel 68 are connected by the second connecting seat 69, which facilitates the construction of the vertical keel 68 and helps to improve the installation efficiency of the transverse keel 67.

[0036] like Fig.15 , Fig.16As shown. The support frame includes a bottom rod 61, and the bottom rod 61 is fixedly connected to the waterproof layer 4. A top rod 62 is arranged above the bottom rod 61, and the bottom end of the top rod 62 is fixedly connected to the bottom rod 61 by welding. The top end of the top rod 62 is connected to the bottom rod 61 through a support rod 66, and the two ends of the support rod 66 are fixedly connected to the top rod 62 and the bottom rod 61 by screws or welding. The top rod 62 forms a conical structure of the support frame. A reinforcing rod 63 is arranged between the top rod 62 and the bottom rod 61. The bottom rods 61 of adjacent support frames are connected by a connecting rod 64, and the connecting rod 64 is fixed on the thermal insulation layer 3. The connecting rod 64 is connected to the bottom rod 61 through a first connecting seat 65.

[0037] like Fig.17 As shown. The first connecting seat 65 includes a U-shaped first slot 611, and a first connecting plate 612 is fixedly arranged on one side of the top of the first slot 611. The first connecting seat 65 is fixedly connected to the bottom rod 61 through the first connecting plate 612. The connecting rod 64 is clamped in the first slot 611. The connecting rod 64 is arranged between adjacent support frames, which is conducive to improving the installation firmness and structural stability of the keel 6. The connecting rod 64 is connected to the bottom rod 61 through the first connecting seat 65, which is convenient for the installation of the connecting rod 64 and is conducive to improving the construction efficiency of the keel 6.

[0038] The ends of the bottom rods 61 of adjacent support frames are connected by a water collecting trough 8, which is located just below the bottom of the tile layer 7. The water collecting trough 8 is used to collect water sliding down from the tile layer 7. The water collecting trough 8 is provided with drainage holes. The water collecting trough 8 discharges water at a fixed point to prevent water from falling randomly on the roof, which is also conducive to the centralized treatment of water.

[0039] like Fig.19 , Fig. 20 , Fig.21 As shown. The tile layer 7 includes an S-shaped integrated tile 71, and the tile 71 can be a metal or cement tile 71. A boss 72 is provided on the lower surface of one end of the tile 71, and a groove matched with the boss 72 is provided on the lower surface of the other end of the tile 71. The tiles 71 in the same row are overlapped by the boss 72 and the groove, thereby improving the splicing effect of adjacent tiles 71. Mounting holes 73 are provided at both ends of the tile 71, and the tile 71 is connected to the mounting seat 610 through the mounting holes 73 to achieve the fixation of the tile 71 on the keel 6. The vertical keel 68 supports the tile 71 below the tile 71, which is conducive to improving the stability of the tile 71. A first sealing gasket 74 is fixedly provided on the upper surface of one side of the tile 71, and a second sealing gasket 75 matched with the first sealing gasket 74 is fixedly provided on the lower surface of the other side of the tile 71. Adjacent rows of tiles 71 are sealed and overlapped by the first sealing gasket 74 and the second sealing gasket 75, which is beneficial to improve the sealing effect between the tiles 71, reduce water leakage, and help improve the waterproof and anti-seepage effects of the roof.

[0040] The repair method of the antique roof repair structure of the old residential building based on the above-mentioned prefabricated floor slab comprises the following steps: S1. A groove 11 is formed on the top of the precast panel 1. A connector is laid vertically on the top of the precast panel 1, and a fixing plate 21 of the connector is fixed on the precast panel 1 by steel nails. A vertical rib 24 is passed through the interior of the connecting rib 23, and the vertical rib 24 is fixedly connected to the connecting rib 23 by tying or welding. A transverse rib 25 is laid on the top of the vertical rib 24, and the transverse rib 25 is fixedly connected to the vertical rib 24 by tying or welding. Concrete is poured on the top of the precast panel 1, and a concrete layer 2 is obtained after curing.

[0041] S2. Lay the insulation layer 3 on the top of the concrete layer 2. The first transverse groove 37 and the second transverse groove 38 on the first insulation board 31 and the second insulation board 32 are aligned and connected. The first vertical groove 39 on the second insulation board 32 is aligned and connected with the second vertical groove 310 on the second water guide plate 34. The third water guide groove 313, the first water guide groove 311, the second water guide groove 312, and the fourth water guide groove 315 on the first side plate 35, the first water guide plate 33, the second water guide plate 34, and the second side plate 36 are connected. The first insulation board 31, the second insulation board 32, the first side plate 35, the first water guide plate 33, the second water guide plate 34, and the second side plate 36 are all fixed on the concrete layer 2 by steel nails. The connection between the insulation layers 3 on both sides of the ridge is filled with waterproof and heat-insulating sealant.

[0042] S3, the second waterproof sheet 42 is laid in the first transverse groove 37, the second transverse groove 38, the first water guide groove 311, the second water guide groove 312, the third water guide groove 313, and the fourth water guide groove 315 by gluing and fixing, the third waterproof sheet is laid in the first vertical groove 39 and the second vertical groove 310 by gluing and fixing, and the first waterproof sheet 41 is laid on the first insulation board 31, the second insulation board 32, the first side board 35, the first water guide board 33, the second water guide board 34, and the second side board 36 by gluing and fixing. The patching layer 5 is laid on the waterproof layer 4 laid at the ridge by gluing and fixing.

[0043] S4, assemble and weld the bottom rod 61 according to the slope of the slope of the concrete layer 2, weld the support rod 66 at the connection of the bottom rod 61, weld the top rod 62 between the top of the support rod 66 and the end of the bottom rod 61, and weld the reinforcing rod 63 between the top rod 62 and the bottom rod 61. Fix the first connecting seat 65 on the side of the bottom rod 61 by screws. Fix the support frame above the waterproof layer 4, and fix the bottom rod 61 on the concrete layer 2 by steel nails. The two ends of the connecting rod 64 are respectively clamped in the first clamping groove 611 of the first connecting seat 65 of the adjacent supporting frame, and the connecting rod 64 is fixed on the concrete layer 2 by steel nails.

[0044] S5. A transverse keel 67 with a second connecting seat 69 fixed thereto is laid above the top rod 62, and the transverse keel 67 is connected to the top rod 62 by screws. A mounting seat 610 is fixed above the transverse keel 67 by welding or screws. A vertical keel 68 is arranged between the transverse keels 67, and the vertical keel 68 is clamped in the second clamping groove 613 of the second connecting seat 69. The water collecting tank 8 is fixed at the end of the bottom rod 61 by welding or screws.

[0045] S6. Lay tiles 71 on the vertical keel 68. The tiles 71 are laid in the order from right to left and from bottom to top. The tiles 71 are placed on the vertical keel 68, and the two ends of the tiles 71 are placed on the adjacent mounting seats 610. One end of the tile 71 is fixed to the mounting seat 610 by screws through the mounting hole 73. The protrusion at the other end of the tile 71 is clamped in the groove of the tile 71 above it. The screws pass through the mounting holes 73 of the two tiles 71 to fix both tiles 71 on the mounting seat 610. One side of the adjacent tile 71 is laid on the side where the tile 71 is laid, and the first sealing gasket 74 is in close contact with the second sealing gasket 75. The ridge tile is laid at the ridge. The ridge tile is located above the tiles 71 on both sides. The two sides of the ridge tile are adapted to the shape of the tile 71. The ridge tile and the tile 71 are fixed together on the mounting seats 610 on both sides of the roof. The laying of the tile layer 7 is completed.

[0046] Therefore, the use of the prefabricated floor slab antique roof repair structure and repair method of the present invention can solve the problems of poor waterproofing and anti-seepage effects, low construction efficiency, and difficulty in centralized water treatment in existing prefabricated floor slab antique repairs, and has the advantages of stable structure and high strength.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that they can still modify or replace the technical solution of the present invention with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the present invention.

Claims

1. A prefabricated floor slab antique roof repair structure for old residential buildings, characterized by: It includes a concrete layer, which is located above the precast panel. The upper surface of the concrete layer is a cone with two inclined surfaces. A skeleton for supporting the concrete layer is arranged inside the concrete layer. An insulation layer is arranged above the concrete layer. A waterproof layer is arranged above the insulation layer. A conical keel is arranged above the waterproof layer. A tile layer is arranged above the keel. A water collecting trough is arranged at the bottom end of the keel. The water collecting trough is located directly below the bottom end of the tile layer.

2. The prefabricated floor slab antique roof repair structure of old residential buildings according to claim 1 is characterized by: The skeleton includes a plurality of connectors perpendicular to the prefabricated panels, the connectors include a fixing plate, a plurality of fixing holes are provided on the fixing plate, the fixing plate is fixedly connected to the prefabricated panel, a plurality of conical connecting ribs are provided in a linear array on the upper surface of the fixing plate along the length direction of the fixing plate; a steel mesh is provided above the fixing plate, the steel mesh includes vertically arranged transverse ribs and vertical ribs, the vertical ribs are provided along the length direction of the fixing plate, the vertical ribs are located below the connecting ribs and are fixedly connected to the connecting ribs, and the transverse ribs are fixedly connected to the vertical ribs.

3. The prefabricated floor slab antique roof repair structure of old residential buildings according to claim 2 is characterized by: The upper surface of the prefabricated board is provided with a plurality of grooves along the length direction of the prefabricated board for increasing the connection strength between the prefabricated board and the concrete layer.

4. The prefabricated floor slab antique roof repair structure of old residential buildings according to claim 3 is characterized by: The insulation layer includes an insulation board and a water guide board, the water guide board is located below the insulation board, and the insulation board connection located at the ridge is connected by a waterproof insulation sealant; the insulation board includes a plurality of first insulation boards and second insulation boards, the first insulation board is provided with a first transverse groove, the second insulation board is provided with a second transverse groove connected to the first transverse groove, the second insulation board is provided with a first vertical groove, and the first vertical groove is connected to the second transverse groove.

5. The prefabricated floor slab antique roof repair structure of old residential buildings according to claim 4 is characterized by: The water guide plate includes a plurality of first water guide plates and second water guide plates, the first water guide plate is located directly below the first thermal insulation plate, a first transverse water guide groove is arranged on the first water guide plate, the second water guide plate is located directly below the second thermal insulation plate, a second transverse water guide groove is arranged on the second water guide plate, the second water guide groove is connected with the first water guide groove, a second vertical groove is arranged on the second water guide plate, and the second vertical groove is connected with both the first vertical groove and the second water guide groove; a first side plate is arranged directly below the first thermal insulation plate at one end of the thermal insulation layer, a third water guide groove connected with the second water guide groove is arranged on the first side plate, a first drain port connected with the third water guide groove is arranged on the first side plate, a second side plate is arranged directly below the first thermal insulation plate at the other end of the thermal insulation layer, a fourth water guide groove connected with the second water guide groove is arranged on the second side plate, and a second drain port connected with the fourth water guide groove is arranged on the second side plate.

6. The prefabricated floor slab antique roof repair structure of old residential buildings according to claim 5 is characterized by: The waterproof layer includes a first waterproof sheet and a second waterproof sheet. The second waterproof sheet is laid in the first transverse groove, the second transverse groove, the first water guide groove, the second water guide groove, the third water guide groove and the fourth water guide groove. The first waterproof sheet is laid on the upper surfaces of the first insulation board, the second insulation board, the first water guide plate, the second water guide plate, the first side plate and the second side plate. The first waterproof sheet overlaps with the second waterproof sheet. The top end of the first waterproof sheet is located below the second waterproof sheet above it, and the bottom end of the first waterproof sheet is located above the second waterproof sheet below it. The third waterproof sheet is laid in the first vertical groove and the second vertical groove. The third waterproof sheet overlaps with the first waterproof sheet, and both ends of the third waterproof sheet are located below the first waterproof sheet. A supplementary layer is provided above the waterproof layer at the ridge to improve the waterproof effect of the ridge.

7. The prefabricated floor slab antique roof repair structure of old residential buildings according to claim 6 is characterized by: The keel includes a plurality of support frames in a linear array, the support frames are fixedly arranged above the waterproof layer, a vertical keel is fixedly arranged above the support frames, the vertical keels are connected by a transverse keel, the transverse keel and the vertical keel are connected by a second connecting seat, a mounting seat for fixing the tile layer is arranged above the transverse keel, and the upper surface of the mounting seat is adapted to the shape of the tile; the second connecting seat includes a U-shaped second slot, second connecting plates connected to the transverse keel are arranged on both sides of the second slot, and the vertical keel is clamped in the second slot.

8. The prefabricated floor slab antique roof repair structure of old residential buildings according to claim 7 is characterized by: The support frame includes a bottom rod, which is fixedly connected to the waterproof layer. A top rod is arranged above the bottom rod, and the bottom end of the top rod is fixedly connected to the bottom rod. The top end of the top rod is connected to the bottom rod through the support rod, and the top rod forms a conical structure of the support frame. A reinforcing rod is arranged between the top rod and the bottom rod; the bottom rods of adjacent support frames are connected by a connecting rod, and the connecting rod is connected to the bottom rod through a first connecting seat; the first connecting seat includes a U-shaped first slot, and a first connecting plate is arranged on one side of the top end of the first slot, and the first connecting seat is fixedly connected to the bottom rod through the first connecting plate.

9. The prefabricated floor slab antique roof repair structure of old residential buildings according to claim 8, characterized in that: The tile layer includes S-shaped tiles, a boss is provided on the lower surface of one end of the tile, a groove matched with the boss is provided on the lower surface of the other end of the tile, tiles in the same row are overlapped by the boss and the groove, mounting holes are provided at both ends of the tile, the tiles are connected to the mounting seat through the mounting holes, vertical keels support the tiles under the tiles, a first sealing gasket is provided on the upper surface of one side of the tile, a second sealing gasket matched with the first sealing gasket is provided on the lower surface of the other side of the tile, and tiles in adjacent rows are overlapped and sealed by the first sealing gasket and the second sealing gasket.

10. A method for repairing an antique roof of an old residential building using a prefabricated floor as claimed in claim 9, characterized in that: The following steps are involved: S1. A groove is formed on the top of the prefabricated board; a connecting piece is laid on the top of the prefabricated board perpendicularly to the prefabricated board, and a fixing plate of the connecting piece is fixed on the prefabricated board by steel nails; vertical bars are passed through the inside of the connecting bars, and the vertical bars are fixedly connected to the connecting bars by tying or welding, and transverse bars are laid on the top of the vertical bars, and the transverse bars are fixedly connected to the vertical bars by tying or welding; concrete is poured on the top of the prefabricated board, and a concrete layer is obtained after curing; S2, laying an insulation layer on top of the concrete layer, the first transverse grooves and the second transverse grooves on the first insulation board and the second insulation board are aligned and connected, the first vertical groove on the second insulation board is aligned and connected with the second vertical groove on the second water guide board, the first side board, the first water guide board, the second water guide board, the third water guide groove on the second side board, the first water guide groove, the second water guide groove, and the fourth water guide groove are connected, and the first insulation board, the second insulation board, the first side board, the first water guide board, the second water guide board, and the second side board are fixed on the concrete layer by steel nails; the connection between the insulation layers on both sides of the ridge is filled with waterproof insulation sealant; S3, laying the second waterproof sheet in the first transverse groove, the second transverse groove, the first water guide groove, the second water guide groove, the third water guide groove, and the fourth water guide groove by gluing, laying the third waterproof sheet in the first vertical groove and the second vertical groove by gluing, laying the first waterproof sheet on the first insulation board, the second insulation board, the first side board, the first water guide plate, the second water guide plate, and the second side board by gluing; laying the supplementary layer on the waterproof layer laid at the ridge by gluing; S4, assemble and weld the bottom rod according to the slope of the concrete layer, install the support rod at the connection of the bottom rod, install the top rod between the top of the support rod and the end of the bottom rod, and set the reinforcing rod between the top rod and the bottom rod; fix the first connecting seat on the side of the bottom rod, fix the support frame above the waterproof layer, fix the bottom rod to the concrete layer by steel nails, and clamp the two ends of the connecting rod in the first clamping groove of the first connecting seat of the adjacent support frame respectively, and fix the connecting rod to the concrete layer by steel nails; S5. A transverse keel with a second connecting seat fixed thereto is laid above the top rod, the transverse keel is connected to the top rod by screws, a mounting seat is fixed above the transverse keel, a vertical keel is arranged between the transverse keels, and the vertical keel is clamped in the second clamping groove of the second connecting seat; a water collecting trough is fixed at the end of the bottom rod; S6. Lay tiles on top of the vertical keel. The tiles are laid from right to left and from bottom to top. The tiles are placed on the vertical keel. The two ends of the tiles are placed on adjacent mounting seats. One end of the tile is fixed to the mounting seat by passing a screw through the mounting hole. The protrusion at the other end of the tile is stuck in the groove of the tile above it. The screws pass through the mounting holes of the two tiles to fix both tiles on the mounting seat. One side of the adjacent tile is placed on the side of the laid tiles. The first sealing gasket is in close contact with the second sealing gasket. Lay ridge tiles at the ridge. The ridge tiles are located above the tiles on both sides. The two ends of the ridge tiles are fixed to the mounting seats on both sides of the roof. Complete the tile layer laying.

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