Brickwork house foundation reinforcing and transforming structure
The masonry house foundation reinforcement structure simplifies construction and reduces costs by using concrete beams and steel bars to reinforce masonry walls without demolishing the original structure, achieving effective stress transmission and structural integrity.
Patent Information
- Application Number
- CN202421044766.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-14
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-05-14
AI Technical Summary
Existing masonry structure renovations face challenges in transforming into bottom frame-seismic masonry wall structures with complex construction processes and high costs, necessitating efficient and cost-effective foundation reinforcement solutions.
A masonry house foundation reinforcement structure involving concrete double connecting beams, reinforced concrete surface layers, longitudinal and transverse steel bars, stirrups, and manually excavated bored cast-in-place pile foundations, allowing for construction without demolishing the original masonry wall, and using double and single connecting beams for stress transmission.
The solution enables simple construction with a significant reinforcement effect while minimizing demolition and reducing costs, meeting structural force requirements without dismantling the original strip foundation.
Smart Images
Figure CN222295807U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of building reinforcement and reconstruction, in particular to a masonry house foundation reinforcement and reconstruction structure. Background Art
[0002] At present, when renovating existing masonry structure buildings, in order to meet the use requirements of the large space at the bottom, it has become one of the common renovation forms to transform the masonry structure into a bottom frame-seismic masonry wall structure through the underpinning technology. The load of the bottom frame structure needs to be transmitted to the foundation through a layer of frame columns. Therefore, the foundation reinforcement and renovation design is an important task when the masonry house is transformed into a bottom frame-seismic masonry wall structure. In the process of foundation reinforcement and renovation, how to make the construction simple, the cost low and the reinforcement effect good has become an urgent problem that enterprises need to solve. Utility Model Content
[0003] The purpose of the utility model is to provide a masonry house foundation reinforcement and reconstruction structure, thereby solving the problems raised in the above-mentioned background technology.
[0004] The technical solution adopted by the utility model is as follows:
[0005] A masonry house foundation reinforcement and reconstruction structure comprises an original brick strip foundation and an original masonry wall 1, wherein concrete double connecting beams 6 are cast on both sides of the original brick strip foundation at the position of an earthquake-resistant wall, and reinforced concrete surface layers 2 are arranged on both sides of the original masonry wall 1 at the position of an earthquake-resistant wall, wherein longitudinal steel bars 3 and transverse steel bars 4 are arranged in the reinforced concrete surface layers 2, and the longitudinal steel bars 3 on both sides of the original masonry wall 1 are connected together by stirrups 5 arranged thereon, and through holes for the stirrups 5 to pass through are drilled on the original masonry wall 1.
[0006] The thickness of the reinforced concrete surface layer 2 is 60 mm.
[0007] The longitudinal steel bars 3 are grade 3 steel bars with a diameter of 12 mm, and the longitudinal steel bars 3 are arranged at intervals of 150 mm.
[0008] The transverse reinforcement 4 is a third-grade reinforcement with a diameter of 8 mm, and the arrangement interval of the transverse reinforcement 4 is 200 mm.
[0009] The stirrups 5 are grade 3 steel bars with a diameter of 6 mm, and the stirrups 5 are arranged at intervals of 200 mm.
[0010] It also includes manually excavated bored cast-in-place pile foundation, which is set under the original brick strip foundation.
[0011] A concrete single connecting beam 7 is cast at a location where the original masonry wall 1 is removed between two adjacent artificial bored cast-in-place pile foundations.
[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:
[0013] 1. When the utility model is used to modify the bottom frame-seismic masonry wall structure of a masonry house, the original masonry wall does not need to be demolished at the position of the seismic wall. It is only necessary to add reinforced concrete surface layers on both sides of the wall to form a sandwich wall, which can meet the common force requirements of the structure and achieve the purpose of reinforcement. The construction is simple, the reinforcement effect is obvious, and the cost is low.
[0014] 2. The utility model does not need to dismantle the original structural strip foundation for the construction of the earthquake-resistant wall foundation. Double connecting beams are set on both sides of the strip foundation as the earthquake-resistant masonry wall foundation, and the amount of dismantling is small. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the structure of the utility model;
[0016] Figure 2 It is a schematic plan view of a double-connecting beam and a single-connecting beam of the utility model;
[0017] In the figure: original masonry wall 1; reinforced concrete surface layer 2; longitudinal steel bars 3; transverse steel bars 4; stirrups 5; double connecting beam 6; single connecting beam 7. DETAILED DESCRIPTION
[0018] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Generally, the components of the embodiment of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.
[0019] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0020] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.
[0021] Example 1
[0022] like Figure 1-2The present embodiment provides a masonry house foundation reinforcement and reconstruction structure, including an original brick strip foundation and an original masonry wall 1. Concrete double connecting beams 6 are cast on both sides of the original brick strip foundation at the position of the seismic wall. A 60 mm thick reinforced concrete surface layer 2 is arranged on both sides of the original masonry wall 1 at the position of the seismic wall. Longitudinal steel bars 3 and transverse steel bars 4 are arranged in the reinforced concrete surface layer 2. The longitudinal steel bars 3 and transverse steel bars 4 are arranged close to the original masonry wall 1. The longitudinal steel bars 3 on both sides of the original masonry wall 1 are connected together by stirrups 5 arranged thereon. Through holes for the stirrups 5 to pass through are drilled on the original masonry wall 1.
[0023] The longitudinal steel bars 3 are grade 3 steel bars with a diameter of 12 mm, and the longitudinal steel bars 3 are arranged at intervals of 150 mm. The transverse steel bars 4 are grade 3 steel bars with a diameter of 8 mm, and the transverse steel bars 4 are arranged at intervals of 200 mm. The stirrups 5 are grade 3 steel bars with a diameter of 6 mm, and the stirrups 5 are arranged at intervals of 200 mm.
[0024] It also includes a manual hole cast-in-place pile foundation, which is arranged under the original brickwork strip foundation. A concrete single connecting beam 7 is cast at the original masonry wall 1 removed between two adjacent manual hole cast-in-place pile foundations, and the single connecting beam 7 is only used as a foundation tension beam.
[0025] The principle of the utility model is to propose a foundation reinforcement and reconstruction structure for the structural stress and force transmission mode when the bottom frame structure of a masonry house is changed, wherein the frame column foundation of the bottom frame-seismic masonry wall structure adopts artificial bored cast-in-place piles + pedestals under the original brick strip foundation, and the seismic wall foundation adopts the original brick enlarged foot foundation + double ground beam support; the seismic wall adopts brick wall + 60mm thick reinforced concrete plywood walls on both sides.
[0026] A pilot pit is excavated locally under the brick strip foundation, and the pile foundation and pedestal are excavated manually. At this time, the upper load is borne by the non-suspended strip foundation of the original structure. During construction, a complete construction plan and safety measures are followed; the pile foundation reinforcement cage is hoisted in sections, and the reinforcement of the pedestal and frame columns is tied; the double-connecting beam is used as the foundation of the seismic masonry wall, and the foundation is poured at the same time after the reinforcement is tied; the single-connecting beam is only used as the foundation tension beam, and reinforcement is reserved only when the reinforcement is tied. After the overall structural reinforcement and reconstruction is completed and the original structure masonry wall is demolished, the reinforcement is tied and the pouring construction is carried out.
[0027] The first-floor bottom frame structure earthquake-resistant wall is constructed after the foundation reinforcement is completed. There is no need to demolish the original brick wall. The brick wall + 60mm thick reinforced concrete on both sides form a plywood wall. The construction is simple and the reinforcement effect is obvious.
[0028] When a masonry house is converted to a bottom frame-seismic masonry wall structure, the original masonry wall does not need to be demolished at the location of the seismic wall. It is only necessary to add reinforced concrete surface layers on both sides of the wall to form a sandwich wall, which can meet the structural joint force requirements and achieve the purpose of reinforcement. The construction of the seismic wall foundation does not require the demolition of the original strip foundation. The double connecting beams are located on both sides of the strip foundation as the seismic masonry wall foundation, and the demolition amount is small.
Claims
1. A masonry house foundation reinforcement and reconstruction structure, comprising an original brick strip foundation and an original masonry wall (1), characterized in that: Concrete double connecting beams (6) are cast on both sides of the original brick strip foundation at the location of the earthquake-resistant wall, and reinforced concrete surface layers (2) are arranged on both sides of the original masonry wall (1) at the location of the earthquake-resistant wall. Longitudinal steel bars (3) and transverse steel bars (4) are arranged in the reinforced concrete surface layers (2). The longitudinal steel bars (3) on both sides of the original masonry wall (1) are connected together by stirrups (5) arranged thereon, and through holes for the stirrups (5) to pass through are drilled on the original masonry wall (1).
2. The masonry house foundation reinforcement and reconstruction structure according to claim 1 is characterized by: The thickness of the reinforced concrete surface layer (2) is 60 mm.
3. The masonry house foundation reinforcement and reconstruction structure according to claim 1 is characterized by: The longitudinal steel bars (3) are third-grade steel bars with a diameter of 12 mm, and the longitudinal steel bars (3) are arranged at intervals of 150 mm.
4. The masonry house foundation reinforcement and reconstruction structure according to claim 1 is characterized by: The transverse steel bars (4) are third-grade steel bars with a diameter of 8 mm, and the arrangement interval of the transverse steel bars (4) is 200 mm.
5. The masonry house foundation reinforcement and reconstruction structure according to claim 1 is characterized by: The stirrups (5) are grade 3 steel bars with a diameter of 6 mm, and the stirrups (5) are arranged at intervals of 200 mm.
6. The masonry house foundation reinforcement and reconstruction structure according to claim 1 is characterized by: It also includes manually dug bored cast-in-place pile foundation, which is set under the original brick strip foundation.
7. The masonry house foundation reinforcement and reconstruction structure according to claim 6 is characterized by: A concrete single connecting beam (7) is cast at the location where the original masonry wall (1) is removed between two adjacent artificially dug and cast-in-place pile foundations.