Reinforcing component of old reinforced concrete beam
By pouring concrete outside the old reinforced concrete beam and using assembled reinforced components, the problems of insufficient seismic performance of old reinforced concrete beams and thermal damage caused by welding reinforcement are solved, local strength improvement and firmness enhancement of the connection point are achieved, and service life is extended.
Patent Information
- Application Number
- CN202422338443.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-25
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-09-25
AI Technical Summary
The existing old reinforced concrete beams have insufficient seismic resistance under long-term use and environmental factors, and the welding and reinforcement method causes thermal damage to the beam structure and affects the mechanical properties, especially at the connection between transverse steel beams and longitudinal steel beams.
The assembled reinforcement components are used. By pouring concrete outside the old reinforced concrete beams, the cross-sectional area of the steel bars is increased, and the expansion seal and tenon fixing are used for sealing and fixing. The components can be directly connected to the connection between the transverse steel beam and the longitudinal steel beam to improve the local strength and the firmness of the connection point.
Effectively improve the local strength and corrosion resistance of old reinforced concrete beams, extend the service life, simplify the installation process, enhance the firmness of the connection points, and avoid thermal damage caused by welding.
Smart Images
Figure CN223075216U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of steel beam reinforcement, in particular to a reinforcement member for an old reinforced concrete beam. Background Art
[0002] With the passage of time, during long-term use, old beams may bear loads exceeding the original design standards, such as increased equipment weight, changed usage functions, etc. At the same time, environmental factors such as acid rain and freeze-thaw cycles will also damage the structure of the beam. In addition, old buildings may need to meet new seismic requirements, while the original reinforced concrete beams may have insufficient seismic performance. Through reinforcement, the strength, stiffness and stability of the beam can be improved, its service life can be extended, the safe use of the building can be ensured, serious safety accidents caused by beam damage can be avoided, and people's lives and property safety can be guaranteed.
[0003] Existing old reinforced concrete beams are mostly reinforced by welding, which requires professional welding equipment and technicians, has a high operation difficulty, high requirements for the construction environment, and welding is prone to generate high temperatures, which may cause thermal damage to the original concrete beam, affect its mechanical properties, and is also prone to cause bond failure between the steel bars and the concrete, resulting in thermal effects on the original material of the old steel beam, leading to problems such as local strength reduction and residual stress generation. Especially for the connection part between the horizontally placed steel beam and the vertically placed steel beam, the welding method is more likely to cause damage to the connection. Based on the above viewpoints, those skilled in the art have provided a reinforcement member for an old reinforced concrete beam. Content of the Utility Model
[0004] The purpose of the utility model is to solve the deficiencies existing in the prior art and propose a reinforcement member for an old reinforced concrete beam. The designed reinforcement member for an old reinforced concrete beam can pour concrete outside the old reinforced concrete beam. By increasing the cross-sectional area of the steel bars with the concrete, the local strength of the old reinforced concrete beam can be effectively improved. At the same time, it can isolate moisture, oxygen and corrosive substances in the external environment, delay the corrosion rate of the steel beam, and extend the service life of the steel beam. At the same time, because the member adopts a modular design, it not only has the advantages of convenient installation, etc., but also can be directly sleeved outside the connection part between the horizontally placed steel beam and the vertically placed steel beam, thereby improving the firmness of the connection point.
[0005] To achieve the above purpose, the utility model provides the following technical solutions:
[0006] A reinforcement member for an old reinforced concrete beam, comprising a first flow-blocking mold and a second flow-blocking mold. The first flow-blocking mold includes a first mold housing, and both sides of the first mold housing are fixedly connected with first side seal strip nested housings. The bottom of the first mold housing is fixedly connected with a first bottom seal strip nested housing. The second flow-blocking mold includes a second mold housing, and both sides of the second mold housing are fixedly connected with second side seal strip nested housings. The bottom of the second mold housing is fixedly connected with a second bottom seal strip nested housing. The first side seal strip nested housing is used in cooperation with the second side seal strip nested housing on the same side, and the first bottom seal strip nested housing is used in cooperation with the second bottom seal strip nested housing. An expansion seal strip is embedded inside the first side seal strip nested housing and the first bottom seal strip nested housing used in cooperation with it, and inside the first bottom seal strip nested housing and the second bottom seal strip nested housing.
[0007] Through the above technical solution, the cooperation between the first flow-blocking mold and the second flow-blocking mold enables the member to be clamped around the outside of the old horizontal steel beam and vertical steel beam. When assembling the first flow-blocking mold and the second flow-blocking mold, it is necessary to align the first side seal strip nested housing with the second side seal strip nested housing, and the first bottom seal strip nested housing with the second bottom seal strip nested housing. Then, the expansion seal strips are respectively placed into the second side seal strip nested housing and the first side seal strip nested housing, and the first bottom seal strip nested housing and the inside of the vibration motor, so as to seal the perforations of the first flow-blocking mold and the second flow-blocking mold. Then, concrete is poured into the first flow-blocking mold and the second flow-blocking mold. After waiting for the concrete to solidify, the expansion seal strips are removed. This member can cast concrete outside the old reinforced concrete beam. By increasing the cross-sectional area of the steel bars with concrete, the local strength of the old reinforced concrete beam can be effectively improved. At the same time, it can isolate moisture, oxygen, and corrosive substances in the external environment, slow down the corrosion rate of the steel beam, and extend the service life of the steel beam. At the same time, due to the assembled design of the member, it not only has the advantages of convenient installation, etc., but also can be directly sleeved outside the connection of the horizontal steel beam and the vertical steel beam, thereby improving the firmness of the connection point.
[0008] Further, the expansion seal strip includes a seal strip expansion body. One end of the seal strip expansion body is provided with a convex head, and the other end of the seal strip expansion body is provided with a concave head. The convex head and the concave head are used in cooperation. Air holes are formed on the seal strip expansion body.
[0009] Through the above technical solution, gas can be injected into the seal strip expansion body through the air holes. Since the seal strip expansion body can expand, it can effectively seal the perforations of the first flow-blocking mold and the second flow-blocking mold. When in use, only the convex head needs to be inserted into the concave head, thus forming a good sealing state. After the concrete is cured, the expansion seal strip can be taken out and used again.
[0010] Furthermore, a number of mortise and tenon fixing parts are fixedly installed on both sides of the first mold housing and the second mold housing. The mortise and tenon fixing parts include male tenons, female tenons and tenon pins. The female tenons and male tenons are used in cooperation, and the tenon pins penetrate the upper side walls of the male tenons and the female tenons.
[0011] Through the above technical solution, the longitudinal fixation of the first seal flow mold and the second seal flow mold is achieved through the cooperation of the male tenon and the female tenon, and the transverse fixation of the first seal flow mold and the second seal flow mold is achieved through the tenon pin.
[0012] Furthermore, the male tenons are fixed on the outer side wall of the first mold housing, and the female tenons are fixed on the outer side wall of the first side seal strip nested housing.
[0013] Through the above technical solution, the first seal flow mold and the second seal flow mold are assembled through the mortise and tenon structure of the mortise and tenon fixing parts, making the installation process simpler and more suitable for repairing old reinforced concrete beams.
[0014] Furthermore, a vibrating plate is placed on the tops of the first seal flow mold and the second seal flow mold. The vibrating plate includes a first vibrating plate, a vibrating motor is installed on the upper side wall of the first vibrating plate, and a second vibrating plate is assembled on the front side of the first vibrating plate.
[0015] Through the above technical solution, the vibrating motor drives the first vibrating plate and the second vibrating plate to rotate, thereby realizing the vibration of the concrete and making the forming quality of the concrete better.
[0016] The utility model has the following beneficial effects:
[0017] 1. In the utility model, concrete can be cast outside the old reinforced concrete beam. By increasing the cross-sectional area of the steel bars through the concrete, the local strength of the old reinforced concrete beam can be effectively improved. At the same time, the moisture, oxygen and corrosive substances in the external environment are isolated, the corrosion rate of the steel beam is delayed, and the service life of the steel beam is extended. At the same time, due to the assembled design of the components, it not only has the advantages of convenient installation, etc., but also can be directly sleeved outside the connection of the horizontal steel beam and the vertical steel beam, thereby improving the firmness of the connection point.
[0018] 2. In the utility model, gas can be injected into the seal strip expansion body through the air holes. Since the seal strip expansion body can expand, the perforation between the first seal flow mold and the second seal flow mold can be effectively blocked. When in use, only the convex head needs to be put into the concave head, and then a good sealing form is formed. After the concrete is cured, the expansion seal strip can be taken out and put into use again.
[0019] 3. In the utility model, the first seal flow mold and the second seal flow mold are assembled through the mortise and tenon structure of the mortise and tenon fixing parts, making the installation process simpler and more suitable for repairing old reinforced concrete beams. Brief Description of the Drawings
[0020] Figure 1 This is the overall view of a reinforcement member for an old reinforced concrete beam proposed by the present utility model;
[0021] Figure 2 This is the first exploded view of a reinforcement member for an old reinforced concrete beam proposed by the present utility model;
[0022] Figure 3 This is the second exploded view of a reinforcement member for an old reinforced concrete beam proposed by the present utility model;
[0023] Figure 4 This is the schematic diagram of the expansion seal in a reinforcement member for an old reinforced concrete beam proposed by the present utility model.
[0024] Legend Explanation:
[0025] 1. First sealing and flowing mold; 2. Second sealing and flowing mold; 3. Vibration plate; 4. Mortise and tenon fixing part; 5. Expansion seal;
[0026] 11. First mold shell; 12. First side seal nesting shell; 13. First bottom seal nesting shell;
[0027] 21. Second mold shell; 22. Second side seal nesting shell; 23. Second bottom seal nesting shell;
[0028] 31. First vibration plate; 32. Second vibration plate; 33. Vibration motor;
[0029] 41. Male tenon; 42. Female tenon; 43. Tenon pin;
[0030] 51. Seal expansion body; 52. Convex head; 53. Concave head; 54. Air hole. Detailed Implementation Manner
[0031] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0032] Refer to Figures 1-4, an embodiment provided by the present utility model: a reinforcement member for an old reinforced concrete beam, comprising a first sealing mold 1 and a second sealing mold 2. The first sealing mold 1 includes a first mold housing 11, two sides of the first mold housing 11 are fixedly connected with first side seal strip nested housings 12, and the bottom of the first mold housing 11 is fixedly connected with a first bottom seal strip nested housing 13. The second sealing mold 2 includes a second mold housing 21, two sides of the second mold housing 21 are fixedly connected with second side seal strip nested housings 22, and the bottom of the second mold housing 21 is fixedly connected with a second bottom seal strip nested housing 23. The first side seal strip nested housing 12 is used in cooperation with the second side seal strip nested housing 22 on the same side, and the first bottom seal strip nested housing 13 is used in cooperation with the second bottom seal strip nested housing 23. An expansion seal strip 5 is embedded inside the first side seal strip nested housing 12 and the first bottom seal strip nested housing 13 used in cooperation therewith, and inside the first bottom seal strip nested housing 13 and the second bottom seal strip nested housing 23.
[0033] The expansion seal strip 5 includes a seal strip expansion body 51. One end of the seal strip expansion body 51 is provided with a convex head 52, and the other end of the seal strip expansion body 51 is provided with a concave head 53. The convex head 52 is used in cooperation with the concave head 53. Air holes 54 are formed in the seal strip expansion body 51, and gas can be injected into the seal strip expansion body 51 through the air holes 54. Since the seal strip expansion body 51 can expand, the perforation parts of the first sealing mold 1 and the second sealing mold 2 can be effectively blocked. During use, only the convex head 52 needs to be inserted into the concave head 53, and then a good sealing form can be formed. After the concrete is cured, the expansion seal strip 5 can be taken out and used again.
[0034] A number of mortise and tenon fixing parts 4 are fixedly installed on both sides of the first mold housing 11 and the second mold housing 21. The mortise and tenon fixing parts 4 include a male tenon 41, a female tenon 42 and a tenon pin 43. The female tenon 42 is used in cooperation with the male tenon 41, and the tenon pin 43 penetrates the upper side walls of the male tenon 41 and the female tenon 42. The longitudinal fixation of the first sealing mold 1 and the second sealing mold 2 is achieved through the cooperation of the male tenon 41 and the female tenon 42, and the transverse fixation of the first sealing mold 1 and the second sealing mold 2 is achieved through the tenon pin 43. The male tenon 41 is fixed on the outer side wall of the first mold housing 11, and the female tenon 42 is fixed on the outer side wall of the first side seal strip nested housing 12. The first sealing mold 1 and the second sealing mold 2 are assembled through the mortise and tenon structure of the mortise and tenon fixing parts 4, making the installation process simpler and more suitable for repairing old reinforced concrete beams. A vibrating plate 3 is placed on the top of the first sealing mold 1 and the second sealing mold 2. The vibrating plate 3 includes a first vibrating plate 31. A vibrating motor 33 is installed on the upper side wall of the first vibrating plate 31. A second vibrating plate 32 is assembled on the front side of the first vibrating plate 31. The first vibrating plate 31 and the second vibrating plate 32 are driven to rotate by the vibrating motor 33, thereby realizing the vibration of the concrete and making the forming quality of the concrete better.
[0035] Working principle: Through the mutual cooperation between the first sealing mold 1 and the second sealing mold 2, the component can be wrapped around the outside of the old horizontal steel beam and vertical steel beam. When assembling the first sealing mold 1 and the second sealing mold 2, it is necessary to align the first side seal nested housing 12 with the second side seal nested housing 22, and the first bottom seal nested housing 13 with the second bottom seal nested housing 23. Subsequently, the expansion seals 5 are respectively placed into the second side seal nested housing 22 and the first side seal nested housing 12, and the first bottom seal nested housing 13 and the vibration motor 33. Thus, the perforations of the first sealing mold 1 and the second sealing mold 2 are blocked. Then, concrete is poured into the first sealing mold 1 and the second sealing mold 2. After waiting for the concrete to solidify, the expansion seals 5 can be removed. The component can pour concrete outside the old reinforced concrete beam. By increasing the cross-sectional area of the steel bars with concrete, the local strength of the old reinforced concrete beam can be effectively improved. At the same time, it isolates the moisture, oxygen, and corrosive substances in the external environment, delays the corrosion rate of the steel beam, and extends the service life of the steel beam. At the same time, due to the assembled design of the component, it not only has the advantages of convenient installation, etc., but also can be directly sleeved outside the connection of the horizontal steel beam and the vertical steel beam, thereby improving the firmness of the connection point. Gas can be injected into the seal expansion body 51 through the air holes 54. Since the seal expansion body 51 can expand, it effectively blocks the perforations of the first sealing mold 1 and the second sealing mold 2. When in use, only the convex head 52 needs to be inserted into the concave head 53, thus forming a good sealing state. After the concrete is cured, the expansion seals 5 can be taken out and used again. The first sealing mold 1 and the second sealing mold 2 are assembled through the tenon and mortise structure of the tenon and mortise fixing part 4, making the installation process simpler and more suitable for repairing old reinforced concrete beams. And the vibration motor 33 drives the first vibration plate 31 and the second vibration plate 32 to rotate, thereby realizing the vibration of the concrete and making the forming quality of the concrete better.
[0036] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A reinforcement member for an old reinforced concrete beam, characterized in that: It includes a first flow-sealing mold (1) and a second flow-sealing mold (2). The first flow-sealing mold (1) includes a first mold housing (11). On both sides of the first mold housing (11), there are fixedly connected first side-seal strip nested housings (12). At the bottom of the first mold housing (11), there is fixedly connected a first bottom-seal strip nested housing (13). The second flow-sealing mold (2) includes a second mold housing (21). On both sides of the second mold housing (21), there are fixedly connected second side-seal strip nested housings (22). At the bottom of the second mold housing (21), there is fixedly connected a second bottom-seal strip nested housing (23). The first side-seal strip nested housing (12) is used in cooperation with the second side-seal strip nested housing (22) on the same side. The first bottom-seal strip nested housing (13) is used in cooperation with the second bottom-seal strip nested housing (23). Inside the first side-seal strip nested housing (12) and the first bottom-seal strip nested housing (13) used in cooperation with it, and inside the first bottom-seal strip nested housing (13) and the second bottom-seal strip nested housing (23), there is embedded an expansion seal strip (5).
2. The reinforcement member for an old reinforced concrete beam according to claim 1, characterized in that: The expansion seal strip (5) includes a seal strip expansion body (51). At one end of the seal strip expansion body (51), there is a convex head (52). At the other end of the seal strip expansion body (51), there is a concave head (53). The convex head (52) is used in cooperation with the concave head (53). On the seal strip expansion body (51), there are air holes (54).
3. The reinforcement member for an old reinforced concrete beam according to claim 1, wherein: On both sides of the first mold housing (11) and the second mold housing (21), there are fixedly installed a number of mortise and tenon fixing parts (4). The mortise and tenon fixing parts (4) include a male tenon (41), a female tenon (42), and a tenon pin (43). The female tenon (42) is used in cooperation with the male tenon (41). The tenon pin (43) penetrates the upper side walls of the male tenon (41) and the female tenon (42).
4. The reinforcement member for an old reinforced concrete beam according to claim 3, characterized in that: The male tenon (41) is fixed on the outer side wall of the first mold housing (11). The female tenon (42) is fixed on the outer side wall of the first side-seal strip nested housing (12).
5. The reinforcement member for an old reinforced concrete beam according to claim 1, characterized in that: On the top of the first flow-sealing mold (1) and the second flow-sealing mold (2), there is placed a vibration plate (3). The vibration plate (3) includes a first vibration plate (31). On the upper side wall of the first vibration plate (31), there is installed a vibration motor (33). On the front side of the first vibration plate (31), there is assembled a second vibration plate (32).