Building roof cornice reinforcing structure
By setting up a reinforced structure in the eaves of the roof of the historical building, the problem of decorative lines falling off due to weathering and looseness is solved, and a safe and reliable decorative effect is achieved.
Patent Information
- Application Number
- CN202422327528.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-24
- Publication Date
- 2025-08-15
- Estimated Expiration
- 2034-09-24
AI Technical Summary
The outskirt concrete structure of the roof eaves of historical buildings is weathered and loose, resulting in the inability to firmly adhere to the decorative lines. The existing repair methods cannot ensure the safety and reliability of the decorative lines.
The reinforcement structure of the concrete eaves is set up inside the concrete eaves, including the reinforcement drilling holes, steel bars and reinforcement glue. The reinforcement of the eaves is reinforced through the reinforcement, and the cement mortar is painted surface layer and sandblasting layer are combined to form a solid decorative line connection.
It realizes a firm connection between decorative lines and old materials, prevents falling off, ensures the beauty and safety of the decoration of historical buildings, and facilitates construction implementation.
Smart Images
Figure CN223227111U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of building repair, in particular to a building roof eaves reinforcement structure. Background Art
[0002] In recent years, the preservation and restoration of historic buildings has been a major topic in urban renewal. During the restoration process, it was discovered that, because residents still live in these buildings, thorough inspection, repair, and reinforcement efforts are often impossible, especially for vulnerable areas like the overhanging eaves of sloping roofs, where access is restricted.
[0003] At present, the original overhanging concrete structure and surface paint have shown varying degrees of weathering and loosening at the ends due to their age, making it difficult to directly paint decorative lines on the surface. In addition, as concrete has gone through the years, its strength will also change. If conventional practices are followed, directly painting cement lines on the surface or externally attaching prefabricated GRC lines cannot ensure the safety, firmness and reliability of the decorative lines.
[0004] Based on this, the utility model designs a building roof eaves reinforcement structure to solve the above problems. Utility Model Content
[0005] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a building roof eaves reinforcement structure.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a building roof eaves reinforcement structure, including a concrete overhanging eaves, a concrete base layer, a rebar reinforcement structure, a cement mortar plastering surface layer, a sandblasting layer, rebar drilling, steel bars and rebar glue, the interior of the concrete overhanging eaves is provided with a rebar reinforcement structure, the eaves surface of the concrete overhanging eaves is provided with a concrete base layer, the outer layer of the concrete base layer is coated with a cement mortar plastering surface layer, and the outer surface of the cement mortar plastering surface layer is sprayed with a sandblasting layer.
[0007] As an optimal technical solution of the present invention, the rebar-embedded reinforcement structure includes rebar-embedded holes, steel bars and rebar-embedded glue. The rebar-embedded holes are opened inside the concrete overhanging eaves surface, and steel bars are inserted into the rebar-embedded holes.
[0008] As a preferred technical solution of the present invention, the gap between the steel bar and the anchoring drill hole is filled with anchoring glue.
[0009] As a preferred technical solution of the present invention, the end of the steel bar exposed from the embedded reinforcement drill hole is bent to one side to form a bent head.
[0010] As a preferred technical solution of the present invention, the cement mortar plaster surface layer is made of a mixture of cement and sand in a ratio of 1:2.5 and the coating thickness covers the steel bars by 20 mm.
[0011] As a preferred technical solution of the present invention, the steel bars inserted into the anchoring holes are short steel bars with a diameter of 8 mm.
[0012] Compared with the prior art, the beneficial effects of the present invention are:
[0013] 1. In the practice of repairing the eaves of the roofs of historical buildings with decorative lines, the utility model optimizes the structural design of key nodes and reinforces the original eaves with embedded steel bars to prevent the new painted decorative lines from falling off due to performance differences and the influence of environmental climate. The utility model is convenient for construction implementation and is safe and reliable. At the same time, manual painting can more easily achieve the original texture and modeling effect of the historical building, thereby achieving the dual purposes of decorative beauty and safety and firmness, which is a design innovation. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:
[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0016] Figure 2 It is an enlarged structural diagram of the rebar-planting reinforcement structure of the present utility model.
[0017] In the figure: 1. Concrete cantilever eaves; 2. Concrete base; 3. Anchor reinforcement structure; 4. Cement mortar plaster surface layer; 5. Sandblasting layer; 6. Anchor drilling holes; 7. Rebar; 701, bending head; 8. Anchor glue. DETAILED DESCRIPTION
[0018] The following is a combination of the appended examples of the present invention Figure 1-2 The technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.
[0019] Example
[0020] Please refer to Figure 1 and Figure 2The utility model provides the following technical solutions: a building roof eaves reinforcement structure, including a concrete overhanging eaves 1, a concrete base layer 2, a rebar reinforcement structure 3, a cement mortar plastering surface layer 4, a sandblasting layer 5, rebar drilling holes 6, steel bars 7 and rebar glue 8. The interior of the concrete overhanging eaves 1 is provided with a rebar reinforcement structure 3, the eaves surface of the concrete overhanging eaves 1 is provided with a concrete base layer 2, the outer layer of the concrete base layer 2 is coated with a cement mortar plastering surface layer 4, and the outer surface of the cement mortar plastering surface layer 4 is sprayed with a sandblasting layer 5.
[0021] The anchor reinforcement structure 3 includes anchor drilling holes 6, steel bars 7 and anchor glue 8. The anchor drilling holes 6 are opened inside the eaves surface of the concrete overhanging eaves 1, and steel bars 7 are inserted into the anchor drilling holes 6.
[0022] The gap between the steel bar 7 and the anchoring hole 6 is filled with anchoring glue 8.
[0023] The above-mentioned anchor bolt drilling holes 6 are located in the middle of the concrete slab, with a left and right spacing of 200mm. The hole diameter is the outer diameter of the anchor bolt grouting nozzle + 2mm, and the hole depth is not less than 20d. Through the connection between the anchor bolt drilling holes 6, steel bars 7 and anchor bolt glue 8 and the concrete overhanging eaves 1, the newly painted decorative lines and the original eaves are reinforced and connected, thereby improving the firmness of the decorative lines.
[0024] One end of the steel bar 7 exposed from the anchoring hole 6 is bent to one side to form a bent head 701 .
[0025] The cement mortar plastering surface layer 4 is made of a mixture of cement and sand in a ratio of 1:2.5 and the coating thickness covers the steel bars by 720 mm.
[0026] Please refer to Figure 2 The steel bar 7 inserted into the anchor hole 6 is a short steel bar with a diameter of 8 mm.
[0027] The exposed length of the above-mentioned steel bar 7 is 20 mm from the finished surface, and the inserted steel bar 7 and the anchor hole 6 are kept straight.
[0028] The working principle and use process of the utility model are as follows: the overhanging eaves of the roof of the existing historical building are cleaned by a high-pressure water gun, and the surface hollows are checked after washing, and the loose plaster layer on the surface of the eaves is chiseled out to the solid base layer, the concrete base layer is chiseled out, and the dust is blown off, and then the position of the anchoring drill hole 6 is calibrated, the hole diameter is the outer diameter of the grouting nozzle of the anchoring + 2mm, and the hole depth is not less than 20d. After the drilling is completed, the dust in the hole is blown off by compressed air, and then the anchoring drill hole 6 is rinsed clean with pressurized water. Then, glue is injected using a glue injection device, and the volume is injected to 2 / 3 of the hole depth. The injector is slowly pulled out while injecting. After the outside of the glue is injected, the treated steel bar 7 is rotated and slowly inserted into the anchoring drill hole 6 until the anchoring glue 8 is squeezed out of the hole by the steel bar, so that the anchoring glue 8 is evenly attached to the surface of the steel bar 7. When inserting the steel bars 7, they should be kept vertical as much as possible. The inserted steel bars 7 should not be disturbed again. After the curing period of the anchor glue 8 is over, the steel bar head is bent to one side to increase the adhesion surface of the paint layer. Use 1:2.5 cement mortar paint surface layer 4 to paint the surface of the concrete base 2. The paint thickness covers the steel bars 720mm. Then use a sandblasting gun to spray white sand under pressure to form a sandblasting layer 5. Rinse the surface with clean water to expose the white sand. The reinforcement and repair of the decorative lines of the cornices of the historical building can be completed.
[0029] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.
Claims
1. A building roof eaves reinforcement structure, comprising a concrete overhanging eaves (1), a concrete base (2), a reinforcement structure (3), a cement mortar plastering surface layer (4), a sandblasting layer (5), reinforcement drilling holes (6), steel bars (7) and reinforcement glue (8), characterized in that: The concrete cantilevered cornice (1) is provided with a reinforcing bar structure (3) at the cornice, the cornice surface of the concrete cantilevered cornice (1) is provided with a concrete base (2), the outer layer of the concrete base (2) is coated with a cement mortar plastering surface layer (4), and the outer surface of the cement mortar plastering surface layer (4) is sprayed to form a sandblasting layer (5).
2. A building roof eaves reinforcement structure according to claim 1, characterized in that: The rebar-planting reinforcement structure (3) comprises a rebar-planting drill hole (6), a steel bar (7) and a rebar-planting glue (8); the rebar-planting drill hole (6) is provided inside the eaves surface of the concrete overhanging eaves (1); and a steel bar (7) is inserted into the rebar-planting drill hole (6).
3. The building roof eaves reinforcement structure according to claim 2, characterized in that: The gap between the steel bar (7) and the anchoring hole (6) is filled with anchoring glue (8).
4. The building roof eaves reinforcement structure according to claim 2, characterized in that: One end of the steel bar (7) exposed from the reinforcing bar drilling hole (6) is bent to one side to form a bent head (701).
5. The building roof eaves reinforcement structure according to claim 2, characterized in that: The steel bars (7) inserted into the anchoring drill holes (6) are short steel bars with a diameter of 8 mm.