Building waterproof capping structure

Abstract

The utility model relates to the field of building structures, in particular to a building waterproof capping structure which comprises top plate side walls, top plate skirts, vertical water stop plates, ring beams, connecting beams, horizontal water stop plates, water stop plate frames, water isolation pieces, structural plates, anti-seepage mortar layers and modified asphalt layers. The edge of the horizontal water stop plate and the edge of the water stop plate frame extend into the block cavity by 8-15 cm, and water separation pieces with the height of 10 cm are welded and fixed to the horizontal water stop plate and the water stop plate frame; the waterproof structure composed of the horizontal waterstop plate, the waterstop plate frame and the waterproof piece is arranged in the block concrete of an original building capping structure, rainwater on the upper portion is effectively prevented from permeating downwards, and compared with an original waterproof structure, the waterproof structure can further prevent the rainwater from permeating horizontally along structural cracks to damage a concrete structural layer by means of the waterproof piece. The problem that the waterproof performance of an existing building capping structure is affected due to the fact that the existing building capping structure has telescopic cracks due to block pouring is solved.

Description

Technical Field

[0001] The utility model relates to the field of building structures, in particular to a waterproof capping structure for a building. Background Art

[0002] The last sub-project of the main structure construction of a building is to cap the top of the building to form a roof. Because the roof structure of the building is different from other structures such as floor slabs and interior walls, it is completely exposed to the external environment, so the requirements for waterproof design are relatively high.

[0003] Today's building capping structures generally rely on the waterproofing effect of the concrete body itself to prevent the intrusion of rainwater from the outside. However, capping structures are usually large-volume concrete construction operations. In order to avoid structural cracks, they need to be poured in blocks. However, vertical expansion cracks will appear between the concrete poured in blocks, which will also affect the waterproofing performance of the capping structure.

[0004] Therefore, in view of the fact that the above-mentioned existing building capping structure has expansion cracks due to the block casting, which affects the waterproof performance of the structure, the capping structure is improved. By setting water barriers between the concrete cast in blocks, and using anti-seepage mortar layers and modified asphalt layers as leveling and anti-seepage layers, the capping structure has a multi-layer composite waterproof system. Utility Model Content

[0005] In order to overcome the problem that the existing building capping structure has expansion cracks due to block casting, which affects the waterproof performance of the structure.

[0006] The technical scheme of the utility model is: a waterproof capping structure for a building, comprising a top plate side wall, a top plate skirt and a vertical water stop plate, a ring beam, a connecting beam, a horizontal water stop plate, a water stop plate frame, a water barrier, a structural plate, an anti-seepage mortar layer and a modified asphalt layer; the vertical water stop plate is welded into an integral structure and embedded in the outer wall of the roof of the building, the top plate side wall and the top plate skirt are integrally cast and formed on the upper end of the outer wall of the roof of the building, the top plate side wall wraps the part of the vertical water stop plate exposed from the outer wall of the roof of the building, the top plate side wall has a height of 50-80cm, the top plate skirt has a width of 30-40cm and a height of 40cm, a ring beam with a height of 20cm is integrally cast and formed at the inner edge of the top plate skirt, a cross-shaped connecting beam is integrally cast and formed on the ring beam, and the inner wall of the ring beam Together with the adjacent connecting beams, it forms a 3*3m block cavity. The width of the ring beam and the connecting beam is 30-40cm. The embedded bars in the side walls and the skirt of the top plate extend into the ring beam and the connecting beam. Horizontal waterstop plates and waterstop plate frames are installed on the ring beam and the connecting beam respectively. The edges of the horizontal waterstop plates and waterstop plate frames extend 8-15cm into the block cavity. Water-blocking parts with a height of 10cm are welded and fixed on the horizontal waterstop plates and waterstop plate frames. Structural plates with a top surface 3-5cm lower than the top surface of the top plate skirt are cast in each block cavity. The horizontal waterstop plates and waterstop plate frames are wrapped in the structural plates. An anti-seepage mortar layer flush with the top surface of the top plate skirt is integrally paved on each structural plate, and a modified asphalt layer with a thickness of 5cm is fully paved on the top plate skirt and the anti-seepage mortar layer.

[0007] Preferably, during the construction of the exterior wall of the top floor of the building, a vertical water stop plate is embedded so that the vertical water stop plate is exposed 15 cm above the exterior wall formwork of the top floor of the building. After the exterior wall is cast, the vertical water stop plate is immediately fixed, and then the formwork for the top plate side wall, top plate skirt, ring beam and connecting beam is made, and embedded steel bars connected to the steel bars of the building's exterior wall are implanted in each formwork. The top plate side wall, top plate skirt, ring beam and connecting beam are cast in an integrated manner, and the embedded steel bars are also exposed in the formed top plate skirt. The inner wall, ring beam and connecting beam are then installed with the horizontal waterstop plate and waterstop plate frame on the ring beam and connecting beam. The structural slab is cast in each cavity in blocks with a casting thickness not exceeding 30cm. The top surface of the structural slab is kept 3-5cm below the skirt of the top slab, so that the structural slab completely wraps the exposed embedded reinforcement, horizontal waterstop plate and water-blocking parts. Then, an anti-seepage mortar layer and a modified asphalt layer are applied on the structural slab from bottom to top, covering the entire surface of the building's capping structure to prevent rainwater from seeping in.

[0008] Preferably, the water-blocking member is a straight water-blocking plate, which is welded and fixed to the horizontal waterstop plate and the waterstop plate frame and connected to form an integral frame structure. The thickness of the straight water-blocking plate is 3 cm and the height is 10 cm. The surface of the straight water-blocking plate has a groove structure. The straight water-blocking plate is vertically welded to the horizontal waterstop plate and the waterstop plate frame, forming a 90-degree angle at the joint with the horizontal waterstop plate and the waterstop plate frame. Once water seeps in from the structural cracks between the structural plate and the top plate skirt, the horizontal waterstop plate and the waterstop plate frame take on the role of preventing water from flowing downward, while the straight water-blocking plate prevents the risk of water gathering in the middle of the structural plate. The groove design on the surface of the straight water-blocking plate increases the friction between the straight water-blocking plate and the concrete of the structural plate, making the concrete of the structural plate more closely bonded to it.

[0009] Preferably, the water-blocking member is a water-blocking V-shaped plate, which is welded and fixed to the horizontal waterstop plate and the waterstop plate frame and connected to form an integral frame structure. The cross-sectional structure of the water-blocking V-shaped plate consists of two oblique straight portions, an arc end portion at the upper end of the oblique straight portion and a groove portion between the two arc-shaped portions. The width of the cross-sectional structure of the water-blocking V-shaped plate at the lower end is 2 cm, the width at the upper end is 4 cm, and the height of the cross-sectional structure of the water-blocking V-shaped plate is 10 cm. The concrete of the structural plate is wrapped around the outside of the oblique straight portion and the arc end portion and flows into In the groove, the oblique straight part of the water-isolating V-shaped plate forms a sixty-degree angle with the welding point of the horizontal waterstop plate and the waterstop plate frame. Once water seeps in from the structural crack between the structural plate and the top plate skirt, the horizontal waterstop plate and the waterstop plate frame take on the role of preventing water from flowing downward, while the water-isolating V-shaped plate prevents the risk of water gathering in the middle of the structural plate. The V-shaped structure of the water-isolating V-shaped plate and the concrete of the structural plate form a V-shaped mortise and tenon structure, and the wide upper arc end is inside the structural plate, which has a good tie effect with the structural plate.

[0010] Preferably, a cavity of a V-shaped structure is provided in the waterproof V-shaped plate, and a through hole connected to the cavity is opened on the bottom wall of the groove portion. The concrete of the structural plate flows into the cavity through the through hole. The concrete of the structural plate can adopt shrinkage compensating concrete. When the structural plate is cast, the concrete will flow into the cavity through the through hole, so that the structural plate and the inner and outer surfaces of the waterproof V-shaped plate are fully combined, thereby further improving the tensioning effect between the waterproof V-shaped plate and the structural plate, and making it less likely for structural cracks to occur between the structural plate and the waterproof V-shaped plate.

[0011] Preferably, embedded plates are installed on the upper surfaces of the ring beam and the connecting beam, and steel bar heads are welded on the embedded plates. The horizontal waterstop plates and waterstop plate frames are welded and fixed to the corresponding embedded plates. Before casting the ring beam and the connecting beam, the embedded plates are welded and fixed to the embedded bars in the ring beam and the connecting beam, so that the steel bar heads are exposed, and the horizontal waterstop plates and waterstop plate frames are welded and fixed to the steel bar heads.

[0012] Preferably, embedded steel bars extending upward and exposed to the top surface of the anti-seepage mortar layer are evenly distributed in the structural plate, and reinforcing grids are welded and fixed between the upper ends of the embedded steel bars. The modified asphalt layer is spread on the reinforcing grids. The reinforcing grids have a double-layer structure. The lower layer is in the anti-seepage mortar layer to strengthen the structural strength of the anti-seepage mortar layer, and the upper layer is tightly attached to the lower surface of the modified asphalt layer and is tightly bonded to the asphalt, so that the asphalt and the anti-seepage mortar layer are well bonded.

[0013] Preferably, the surface of the modified asphalt layer is roughened to form a rough surface, and the surface of the modified asphalt layer is coated with an anti-seepage coating of non-curing rubber material. Before coating the anti-seepage coating, the surface of the modified asphalt layer is roughened using a tool to increase the roughness and ensure tight adhesion of the anti-seepage coating.

[0014] Beneficial effects of the utility model:

[0015] 1. A waterproof structure consisting of a horizontal water stop plate, a water stop plate frame and water barrier is set in the block concrete of the original building capping structure to effectively prevent rainwater from penetrating downward. Compared with the original waterproof structure, the water barrier can further prevent rainwater from penetrating horizontally along the structural cracks and damaging the concrete structure layer;

[0016] 2. Use the integral anti-seepage mortar layer and modified asphalt layer set on the block structure board to isolate the upper rainwater and prevent rainwater from seeping in, thus reducing the possibility of roof leakage from the root;

[0017] 3. Through the waterproof V-shaped plate and its cavity structure, the concrete of the structural plate forms a V-shaped mortise and tenon structure with it, which has a good tensioning effect and a tight combination, and is not easy to produce structural cracks and cause water seepage. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 What is shown is a schematic diagram of the first three-dimensional structure of the layered waterproof capping structure of a building of the utility model;

[0019] Figure 2 What is shown is a schematic diagram of the second three-dimensional structure of the layered waterproof capping structure of the building of the utility model;

[0020] Figure 3 What is shown is a schematic diagram of the layered front structure of the building waterproof capping structure of the utility model;

[0021] Figure 4 What is shown is a partially enlarged structural schematic diagram of the internal section of the building waterproof capping structure of the utility model;

[0022] Figure 5 The three-dimensional structure diagram of the first embodiment of the waterproof capping structure water-blocking member of the building of the utility model is shown;

[0023] Figure 6The present invention is a schematic diagram of a partial cross-section structure of a first embodiment of a waterproof capping structure water-blocking member for a building of the present invention;

[0024] Figure 7 The three-dimensional structure diagram of the second embodiment of the waterproof capping structure water-blocking member of the building of the utility model is shown;

[0025] Figure 8 The diagram shows a partially enlarged three-dimensional structure diagram of the second embodiment of the waterproof capping structure water-blocking member of the building of the utility model;

[0026] Fig. 9 Shown is a partial cross-sectional structural schematic diagram of a second embodiment of the water-blocking member of the building waterproof capping structure of the utility model.

[0027] Explanation of the reference numerals in the accompanying drawings: 1. Side wall of the top plate; 2. Skirt of the top plate; 3. Vertical waterstop plate; 4. Ring beam; 5. Connecting beam; 6. Horizontal waterstop plate; 7. Waterstop plate frame; 9. Structural plate; 10. Anti-seepage mortar layer; 11. Modified asphalt layer; 12. Oblique straight portion; 13. Arc end portion; 14. Grooved portion; 15. Cavity; 16. Through hole; 17. Embedded plate; 18. Embedded steel bars; 19. Reinforced grille; 20. Anti-seepage coating; 801. Water-proof straight plate; 802. Water-proof V-shaped plate. DETAILED DESCRIPTION

[0028] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0029] See also Figure 1-Figure 9The utility model provides a waterproof capping structure for a building, comprising a top plate side wall 1, a top plate skirt 2 and a vertical water stop plate 3, a ring beam 4, a connecting beam 5, a horizontal water stop plate 6, a water stop plate frame 7, a water barrier, a structural plate 9, an anti-seepage mortar layer 10 and a modified asphalt layer 11; the vertical water stop plate 3 is welded into an integral structure and embedded in the outer wall of the roof of the building, the top plate side wall 1 and the top plate skirt 2 are integrally cast and formed on the upper end of the outer wall of the roof of the building, the top plate side wall 1 wraps the part of the vertical water stop plate 3 exposed from the outer wall of the roof of the building, the top plate side wall 1 is 50-80cm high, the top plate skirt 2 is 30-40cm wide and 40cm high, and the inner edge of the top plate skirt 2 is An integrally cast ring beam 4 with a height of 20 cm is formed, and a cross-shaped connecting beam 5 is integrally cast on the ring beam 4, and the inner wall of the ring beam 4 and the adjacent connecting beam 5 enclose a 3*3m block cavity, the width of the ring beam 4 and the connecting beam 5 are both 30-40 cm, and the embedded bars in the top plate side wall 1 and the top plate skirt 2 extend into the ring beam 4 and the connecting beam 5, and the ring beam 4 and the connecting beam 5 are respectively installed with a horizontal water stop plate 6 and a water stop plate frame 7, and the edges of the horizontal water stop plate 6 and the water stop plate frame 7 extend into the block cavity by 8-15 cm, and a water barrier with a height of 10 cm is welded and fixed on the horizontal water stop plate 6 and the water stop plate frame 7, and each block cavity is cast in blocks with a top surface lower than the top plate The top surface of the skirt 2 is 3-5cm thick, and the horizontal waterstop plate 6 and the waterstop plate frame 7 are all wrapped in the structural plate 9. On each structural plate 9, an anti-seepage mortar layer 10 flush with the top surface of the top plate skirt 2 is formed in an integrated manner. The top plate skirt 2 and the anti-seepage mortar layer 10 are fully paved with a modified asphalt layer 11 with a thickness of 5cm. During the construction of the exterior wall of the top layer of the building, the vertical waterstop plate 3 is embedded so that the vertical waterstop plate 3 is exposed 15cm above the exterior wall formwork of the top layer of the building. After the exterior wall is poured, the vertical waterstop plate 3 is immediately fixed, and then the formworks of the top plate side wall 1, the top plate skirt 2, the ring beam 4 and the connecting beam 5 are made, and the steel bars of the exterior wall of the building are implanted in each formwork. The rebars are connected as one, and the top plate side walls 1, top plate skirt 2, ring beam 4 and connecting beam 5 are cast in one piece. The rebars are also exposed on the inner wall of the formed top plate skirt 2, ring beam 4 and connecting beam 5. Then the horizontal water stop plate 6 and the water stop plate frame 7 are installed on the ring beam 4 and the connecting beam 5. The structural plate 9 is cast in blocks in each cavity. The casting thickness does not exceed 30 cm, and the top surface of the structural plate 9 is kept 3-5 cm below the top plate skirt 2, so that the structural plate 9 completely wraps the exposed rebars, horizontal water stop plate 6 and water barrier. Then, an anti-seepage mortar layer 10 and a modified asphalt layer 11 are applied on the structural plate 9 from bottom to top, covering the entire surface of the building capping structure to prevent rainwater from seeping in.

[0030] See also Figure 1-Figure 5 , Figure 7, the upper surface of the ring beam 4 and the connecting beam 5 is embedded with an embedded plate 17, and a steel bar head is welded on the embedded plate 17. The horizontal water stop plate 6 and the water stop plate frame 7 are welded and fixed to the corresponding embedded plate 17. Before pouring the ring beam 4 and the connecting beam 5, the embedded plate 17 is welded and fixed to the embedded bars in the ring beam 4 and the connecting beam 5, so that the steel bar head is exposed, and the horizontal water stop plate 6 and the water stop plate frame 7 are welded and fixed on the steel bar head. The structural plate 9 is evenly provided with embedded steel bars 18 extending upward and exposed to the top surface of the anti-seepage mortar layer 10. A reinforcing grid 19 is welded and fixed between the upper ends of the embedded steel bars 18. Modified asphalt The layer 11 is spread on the reinforcing grille 19. The reinforcing grille 19 has a double-layer structure. The lower layer is in the anti-seepage mortar layer 10 to strengthen the structural strength of the anti-seepage mortar layer 10. The upper layer is tightly attached to the lower surface of the modified asphalt layer 11 and is tightly bonded to the asphalt, so that the asphalt and the anti-seepage mortar layer 10 have a good bonding degree. The surface of the modified asphalt layer 11 is roughened to a rough surface. The surface of the modified asphalt layer 11 is coated with an anti-seepage coating 20 made of non-curing rubber material. Before coating the anti-seepage coating 20, the surface of the modified asphalt layer 11 is first roughened using a tool to increase the roughness and ensure that the anti-seepage coating 20 is tightly bonded.

[0031] Example 1: Please refer to Figure 1-Figure 6 In this embodiment, the water-blocking member is a water-blocking straight plate 801, which is welded and fixed on the horizontal waterstop plate 6 and the waterstop plate frame 7 and connected to form an integral frame structure. The thickness of the water-blocking straight plate 801 is 3 cm and the height is 10 cm. The surface of the water-blocking straight plate 801 has a groove structure. The water-blocking straight plate 801 is vertically welded to the horizontal waterstop plate 6 and the waterstop plate frame 7, and a ninety-degree angle is formed at the joint with the horizontal waterstop plate 6 and the waterstop plate frame 7. Once water penetrates from the structural crack between the structural plate 9 and the top plate skirt 2, the horizontal waterstop plate 6 and the waterstop plate frame 7 take on the role of preventing water from flowing downward, while the water-blocking straight plate 801 prevents the risk of water gathering in the middle of the structural plate 9. The groove design on the surface of the water-blocking straight plate 801 increases the friction between the concrete of the structural plate 9 and the concrete of the structural plate 9, making the concrete of the structural plate 9 more closely combined with it.

[0032] Example 2: Please refer to Figure 3 , Figure 7-Figure 9In this embodiment, the water-blocking member is a water-blocking V-shaped plate 802, which is welded and fixed on the horizontal waterstop plate 6 and the waterstop plate frame 7 and connected to form an integral frame structure. The cross-sectional structure of the water-blocking V-shaped plate 802 is composed of two oblique straight portions 12, an arc end portion 13 at the upper end of the oblique straight portion 12 and a groove portion 14 between the two arc-shaped portions. The width of the cross-sectional structure of the water-blocking V-shaped plate 802 at the lower end is 2 cm, and the width at the upper end is 4 cm. The height of the cross-sectional structure of the water-blocking V-shaped plate 802 is 10 cm. The concrete of the structural plate 9 is wrapped around the outside of the oblique straight portion 12 and the arc end portion 13 and flows into the groove portion 14. The oblique straight portion 12 on the water-blocking V-shaped plate 802 forms a sixty-degree angle with the welding point of the horizontal waterstop plate 6 and the waterstop plate frame 7. Once water penetrates from the structural cracks between the structural plate 9 and the top plate skirt 2, the horizontal waterstop plate 6 and the waterstop plate frame 7 are responsible for preventing the water from flowing downward. The waterproof V-shaped plate 802 prevents the risk of water gathering in the middle of the structural plate 9. The V-shaped structure of the waterproof V-shaped plate 802 and the concrete of the structural plate 9 form a V-shaped mortise and tenon structure, and the upper wide arc end 13 is in the structural plate 9, and the tensioning effect with the structural plate 9 is good. A V-shaped cavity 15 is arranged in the waterproof V-shaped plate 802, and a through hole 16 connected to the cavity 15 is opened on the bottom wall of the groove portion 14. The concrete of the structural plate 9 flows into the cavity 15 through the through hole 16. The concrete of the structural plate 9 can adopt shrinkage compensating concrete. When the structural plate 9 is cast, the concrete will flow into the cavity 15 through the through hole 16, so that the inner and outer surfaces of the structural plate 9 and the waterproof V-shaped plate 802 are fully combined, thereby further improving the tensioning effect between the waterproof V-shaped plate 802 and the structural plate 9, so that structural cracks are not easy to occur between the structural plate 9 and the waterproof V-shaped plate 802.

[0033] Through the above steps, a waterproof structure consisting of a horizontal water stop plate 6, a water stop plate frame 7 and a water barrier is set in the block concrete of the original building capping structure, which effectively prevents rainwater from above from seeping downward. Compared with the original waterproof structure, the water barrier can further prevent rainwater from horizontally penetrating along the structural cracks to destroy the concrete structure layer, so as to solve the problem that the existing building capping structure has expansion cracks due to the block casting, which affects the waterproof performance of the structure.

Claims

1. A waterproof capping structure for a building, comprising a roof side wall (1), a roof skirt (2) and a vertical water stop plate (3); characterized in that: The structure also includes a ring beam (4), a connecting beam (5), a horizontal water stop plate (6), a water stop plate frame (7), a water barrier, a structural plate (9), an anti-seepage mortar layer (10) and a modified asphalt layer (11); the vertical water stop plate (3) is welded into an integral structure and embedded in the outer wall of the roof of the building; the top plate side wall (1) and the top plate skirt (2) are integrally cast and formed on the upper end of the outer wall of the roof of the building; the top plate side wall (1) exposes the vertical water stop plate (3) to the outer wall of the roof of the building. The wall is partially wrapped inside, the top plate side wall (1) is 50-80 cm high, the top plate skirt (2) is 30-40 cm wide and 40 cm high, a ring beam (4) with a height of 20 cm is integrally cast at the inner edge of the top plate skirt (2), a cross-shaped connecting beam (5) is integrally cast on the ring beam (4), and the inner wall of the ring beam (4) and the adjacent connecting beam (5) enclose a 3*3m block cavity, and the ring beam (4) and the connecting beam (5) are integrally cast on the inner edge of the top plate skirt (2). The width of the beam (5) is 30-40 cm. The embedded steel bars in the top plate side wall (1) and the top plate skirt (2) extend into the ring beam (4) and the connecting beam (5). The ring beam (4) and the connecting beam (5) are respectively installed with a horizontal water stop plate (6) and a water stop plate frame (7). The edges of the horizontal water stop plate (6) and the water stop plate frame (7) extend 8-15 cm into the block cavity. The horizontal water stop plate (6) and the water stop plate frame (7) are welded and fixed with a height of 10c m waterproof member, each block cavity is cast in blocks with a structural plate (9) whose top surface is 3-5 cm lower than the top surface of the top plate skirt (2), the horizontal water stop plate (6) and the water stop plate frame (7) are wrapped in the structural plate (9), and each structural plate (9) is integrally paved with an anti-seepage mortar layer (10) flush with the top surface of the top plate skirt (2), and a modified asphalt layer (11) with a thickness of 5 cm is fully paved on the top plate skirt (2) and the anti-seepage mortar layer (10).

2. The building waterproof capping structure according to claim 1, characterized in that: The water-blocking member is a water-blocking straight plate (801), which is welded and fixed to the horizontal water-stop plate (6) and the water-stop plate frame (7) and connected to form an integral frame structure. The water-blocking straight plate (801) has a thickness of 3 cm and a height of 10 cm. The surface of the water-blocking straight plate (801) has a groove structure.

3. The building waterproof capping structure according to claim 1, characterized in that: The water-blocking member is a water-blocking V-shaped plate (802), which is welded and fixed to the horizontal water stop plate (6) and the water stop plate frame (7) and connected to form an integral frame structure. The cross-sectional structure of the water-blocking V-shaped plate (802) is composed of two oblique straight portions (12), an arc end portion (13) at the upper end of the oblique straight portion (12), and a groove portion (14) between the two arc portions. The width of the cross-sectional structure of the water-blocking V-shaped plate (802) at the lower end is 2 cm, and the width at the upper end is 4 cm. The height of the cross-sectional structure of the water-blocking V-shaped plate (802) is 10 cm. The concrete of the structural plate (9) is wrapped around the outer sides of the oblique straight portion (12) and the arc end portion (13) and flows into the groove portion (14).

4. The building waterproof capping structure according to claim 3, characterized in that: A V-shaped cavity (15) is provided in the waterproof V-shaped plate (802), and a through hole (16) communicating with the cavity (15) is provided on the bottom wall of the groove portion (14), and concrete of the structural plate (9) flows into the cavity (15) through the through hole (16).

5. The building waterproof capping structure according to claim 1, characterized in that: An embedded plate (17) is embedded and installed on the upper surface of the ring beam (4) and the connecting beam (5), a steel bar head is welded to the embedded plate (17), and the horizontal water stop plate (6) and the water stop plate frame (7) are welded and fixed to the corresponding embedded plate (17).

6. The building waterproof capping structure according to claim 1, characterized in that: Embedded steel bars (18) extending upward and exposed to the top surface of the anti-seepage mortar layer (10) are evenly distributed in the structural plate (9); a reinforcing grid (19) is welded and fixed between the upper ends of the embedded steel bars (18); and the modified asphalt layer (11) is spread on the reinforcing grid (19).

7. The building waterproof capping structure according to claim 1, characterized in that: The surface of the modified asphalt layer (11) is roughened to form a rough surface, and the surface of the modified asphalt layer (11) is coated with an anti-seepage coating (20) made of a non-curing rubber material.

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