Wooden column reinforced by additionally arranging concrete wall body
By adding concrete walls and steel reinforcement around the wooden pillars, the problem of weak reinforcement of old wooden pillars was solved, the load-bearing capacity was improved and the service life was extended. The construction is simple and the economic benefits are significant.
Patent Information
- Application Number
- CN202423142454.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-19
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2034-12-19
AI Technical Summary
Existing technologies for reinforcing old wooden pillars are not strong enough and are inconvenient to construct, which may affect the load-bearing capacity and have adverse effects on the wooden pillars.
A concrete wall is built around the wooden pillars, with additional longitudinal reinforcement, stirrups, and tie bars to form a concrete wall structure to reinforce the wooden pillars and improve their load-bearing capacity and rigidity.
It enhances the load-bearing capacity and rigidity of wooden pillars, prevents corrosion, extends service life, improves seismic performance, and is easy to construct and economically beneficial.
Smart Images
Figure CN223781187U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of comprehensive renovation technology of old houses, specifically a wooden column reinforced with added concrete walls. Background Technology
[0002] Currently, many old masonry houses still use wooden pillars for their supports. Due to their age, these wooden pillars are damaged to varying degrees, such as rot at the base, cracking under stress, or insect infestation.
[0003] For severely damaged wooden pillars, the first consideration during renovation should be replacing them with new wooden, brick, or reinforced concrete pillars. However, when the wooden pillar is of good quality, with no serious damage such as rot, stress cracking, or insect infestation at the base, and meets the load-bearing requirements, it should be reinforced using relevant technologies. However, existing technologies for reinforcing wooden pillars still have problems such as insufficient strength, inconvenience in constructing the reinforcement structure, and potential adverse effects on the load-bearing capacity of the wooden pillar. Utility Model Content
[0004] To address the shortcomings of existing technologies, this invention proposes a wooden column reinforced with an additional concrete wall. By covering the wooden column with a concrete wall, the cross-sectional dimensions of the wooden column can be increased. Concrete, as a high-strength material, can withstand greater pressure, thus effectively distributing the load on the wooden column and improving its load-bearing capacity. At the same time, the addition of the concrete wall also enhances the rigidity of the wooden column, making it stable under stress and less prone to deformation, thereby extending the service life of the wooden column.
[0005] The present invention describes a wooden column reinforced with an additional concrete wall, comprising the original wooden column, longitudinal wall reinforcement, wall stirrups, the additional wall, and tie bars;
[0006] The added wall is a concrete wall, including a middle wall and two side walls. The middle wall encloses the original wooden pillar, and the two side walls extend outward from both sides of the middle wall.
[0007] The wall longitudinal reinforcement consists of multiple longitudinally arranged bars in the later-added wall; the wall stirrups include a first stirrup located in the middle wall and forming a V-shape, and second stirrups extending outward from both sides of the first stirrup into the two side walls respectively. The wall stirrups are arranged horizontally in the later-added wall, with two bars provided in the same horizontal direction, and the two wall stirrups are arranged to be connected to each other; the tie bars are located in the two side walls and connect the two wall longitudinal reinforcement bars located in the same horizontal direction.
[0008] Furthermore, the wall stirrups are arranged every 200mm along the vertical direction.
[0009] Furthermore, the tie bars are arranged in groups every 200mm along the horizontal direction.
[0010] Furthermore, the additional wall is cast in one continuous pour.
[0011] Furthermore, the distance between the outermost ends of both sides of the added wall and the outermost ends of both sides of the wall stirrups is 100mm.
[0012] The beneficial effects of this utility model are:
[0013] This invention adds a concrete wall to encase the log post, which can prevent the log post from corroding. The concrete wall can increase the cross-sectional size of the log post. As a high-strength material, concrete can withstand greater pressure, thus effectively distributing the load on the log post and improving its load-bearing capacity. At the same time, the addition of the concrete wall also enhances the rigidity of the log post, making it stable under stress and less prone to deformation, thereby helping to extend the service life of the log post. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of the present invention, which uses wooden columns reinforced with additional walls.
[0015] Figure 2 for Figure 1 Sectional view of one side wall along AA;
[0016] Figure 3 This is a structural diagram of the wall stirrups;
[0017] Figure 4 This is a schematic diagram of a structure in which two wall stirrups are joined together.
[0018] In the picture:
[0019] 1. Original log post; 2. Longitudinal reinforcement bars; 3. Wall stirrups; 4. Added wall structure; 5. Doorway; 6. Tie bars; 7. Middle wall structure; 8. Side walls; 9. First stirrup; 10. Second stirrup; 11. Square stirrup; 12. Bend. Detailed Implementation
[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0021] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" 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 an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0023] like Figures 1 to 4 As shown, a wooden column reinforced with an additional concrete wall according to this utility model includes the original wooden column 1, longitudinal wall reinforcement 2, wall stirrups 3, the added wall 4, and tie bars 6.
[0024] The added wall 4 is a concrete wall, including a middle wall 7 and two side walls 8. The middle wall 7 encloses the original wooden pillar 1, and the two side walls 8 extend outward from both sides of the middle wall 7.
[0025] There are multiple longitudinal reinforcement bars 2 in the later-added wall 4;
[0026] The wall stirrups 3 include a first stirrup 9 located in the middle wall 7 and forming a V-shape, and second stirrups 10 extending outward from both sides of the first stirrup 9 into the two side walls 8. The wall stirrups 3 are arranged horizontally in the laterally added wall 4, and two of them are provided in the same horizontal direction, and the two wall stirrups 3 are arranged to be connected to each other. The tie bars 6 are located in the two side walls 8 and connect the two wall longitudinal bars 2 located in the same horizontal direction.
[0027] Among them, the longitudinal reinforcement 2, also known as longitudinal reinforcing steel, mainly bears compressive stress. It is primarily distributed at the junction of masonry and reinforced concrete structures, or as an additional reinforced concrete structure added during the reinforcement of masonry walls. It enhances the longitudinal load-bearing capacity of the wall, enabling it to better resist compressive stress caused by loads, and helps to tightly connect various parts, thereby improving the integrity and stability of the wall. Furthermore, when the wall is subjected to external forces, the longitudinal reinforcement 2 can deform to absorb and disperse these forces, protecting the wall from damage. The stirrups 3, also known as transverse stirrups, mainly bear shear force to fix the position of the longitudinal reinforcement and significantly improve the shear resistance of the wall, enabling it to better resist horizontal shear forces caused by wind loads, seismic loads, etc. When the wall is subjected to large external forces, the stirrups 3 can undergo plastic deformation to absorb more energy, improving the ductility and seismic performance of the wall. The tie bars 6, by tightly connecting the reinforcing bars to form an integral structure, effectively enhance the load-bearing capacity of the concrete members. This connection method allows the steel bars and concrete to work together more effectively, sharing the load and preventing damage under external loads. Furthermore, the tie bars 6 also improve seismic performance and prevent wall cracking, and can be used to reinforce and repair columns or walls with insufficient strength.
[0028] Specifically, such as Figures 1 to 4 As shown, in this embodiment, there is a log post 1 on each side of the doorway 5, and a reinforced concrete wall 4 on each side encloses the circular log post 1. In the concrete wall surrounding the log post 1, two interlocking wall hoops 3 are arranged horizontally at the same height. The V-shaped part of the wall hoops 3 in the middle wall 7 is the first hoop 9, and the part extending outward from both sides of the first hoop 9 into the side walls 8 is the second hoop 10. The first hoop 9 of the two wall hoops 3 together form a near-square shape, and encloses and tightens the longitudinal wall reinforcement 2 and the log post in the middle wall 7 except for the four corners. The first hoop 9 of the two wall hoops 3 can be fixedly connected by welding or other fastening methods. The second hoop 10 on both sides of the two wall hoops 3 has a bent part at the end, and the second hoop 10 can be connected to each other through the bent part. Specifically, they can be fixedly connected by welding or other fastening methods.
[0029] Meanwhile, square stirrups 11 can be provided around the first stirrup 9 to further tighten and reinforce the longitudinal wall bars 2 and the first stirrup 9 located at the four corners of the intermediate wall 7.
[0030] The longitudinal reinforcement 2 distributed in the two side walls 8 is reinforced by the second stirrup 10, wherein the first stirrup 9 and the second stirrup 10 are made as a single piece. In addition, the tie bars 6 are mainly distributed in the two side walls 8, and the multiple sets of tie bars 6 distributed in the two side walls 8 can respectively reinforce and connect a pair of longitudinal reinforcement 2 located at both ends of the two side walls 8.
[0031] This invention, by encasing the log post 1 in a new concrete wall, can prevent the log post 1 from corroding. At the same time, the concrete wall can increase the cross-sectional dimensions of the log post 1. As a high-strength material, concrete can withstand greater pressure, thus effectively distributing the load on the log post 1 and improving its load-bearing capacity. The addition of the concrete wall also enhances the rigidity of the log post 1, making it stable under stress and less prone to deformation, thereby helping to extend the service life of the log post 1.
[0032] Specifically, the concrete wall effectively restrains the log post 1, thus limiting its deformation under stress. This restraint helps maintain the geometric and dimensional stability of the log post 1, preventing it from failing due to deformation. The added concrete wall significantly improves its resistance to overturning. This helps ensure the stability of the log post 1 under natural disasters such as wind and earthquakes. The addition of the concrete wall helps disperse stress on the log post 1, reducing local stress concentration. This helps prevent the log post 1 from failing due to excessive stress. The concrete wall protects the log post, reducing its exposure to erosion and damage from the external environment, which helps extend the service life of the log post 1 and improve its durability.
[0033] In addition, by setting the longitudinal reinforcement 2, the stirrups 3, and the tie bars 6 in the above-mentioned specific configuration to reinforce the concrete wall and the log column 1, the overall seismic resistance of the reinforced log column 1 can be improved, so that the newly constructed concrete wall structure and the log column 1 can jointly bear the seismic load, thereby enhancing the toughness of the building and preventing structural collapse.
[0034] In one alternative embodiment, the wall stirrups 3 are arranged at 200mm intervals along the vertical direction.
[0035] In one alternative embodiment, the tie bars 6 are arranged in groups at 200mm intervals along the horizontal direction.
[0036] In one alternative embodiment, the thickness of the middle wall 7 is 400 mm and the thickness of the two side walls 8 is 200 mm.
[0037] Specifically, the arrangement of the above-mentioned wall stirrups 3 and tie bars 6, as well as the thickness of the intermediate wall 7 and the two side walls 8, are all designed according to the minimum design value of the specification, which can maximize the saving of construction costs while ensuring the reinforcement effect.
[0038] In one alternative implementation, the additional wall 4 is cast in one continuous pour.
[0039] Specifically, the log column 1 formed by the above-mentioned structural reinforcement can be constructed by one-time casting of the additional wall 4 used to reinforce the log column 1. Therefore, the log column 1 provided in this embodiment can be constructed in a relatively efficient and economical manner, with the advantages of simple construction and good economic benefits.
[0040] Furthermore, the construction of a wooden column reinforced with an additional concrete wall, as provided by this utility model, specifically includes the following steps:
[0041] Step 1: Fabricate wall longitudinal reinforcement 2, wall stirrups 3, and tie bars 6 according to the design drawings;
[0042] Step 2: Arrange the longitudinal reinforcement 2, stirrups 3, and tie bars 6 in the added wall 4 according to the design drawings. The longitudinal reinforcement 2 is arranged every 200mm in the horizontal direction, the stirrups 3 are arranged every 200mm in the vertical direction, and the tie bars 6 are arranged in a set every 200mm in the horizontal direction.
[0043] Step 3: According to the design drawings, make concrete pouring molds and pour concrete to form the post-added wall 4, and ensure that the original wooden column 1, wall longitudinal reinforcement 2, wall stirrups 3, and tie reinforcement 6 are all inside the post-added wall. The distance between the outermost ends of both sides of the post-added wall 4 and the outermost ends of both sides of the wall stirrups 3 is 100mm. In other words, the concrete wall is thickened by 100mm on both sides of the wall stirrups 3.
[0044] Step 4: After pouring, wait for the concrete to harden and reach the design strength;
[0045] Step 5: Demolding;
[0046] Step Six: After the mold is removed, the wall is plastered and leveled.
[0047] As can be seen from the above steps, the reinforced wooden column provided by this utility model has the advantage of simple construction, and because it includes a combination of multiple wall longitudinal bars 2, wall stirrups 3, and tie bars 6, it also has the advantage of reasonable structural stress. In addition, since it mainly uses concrete for reinforcement, it can generate good economic and environmental benefits.
[0048] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A wooden column reinforced with an additional concrete wall, characterized in that: Includes original timber pillars (1), wall longitudinal reinforcement (2), wall stirrups (3), later added wall (4), and tie bars (6); The added wall (4) is a concrete wall, including a middle wall (7) and two side walls (8). The middle wall (7) wraps around the original wooden pillar (1), and the two side walls (8) extend outward from both sides of the middle wall (7). The longitudinal reinforcement bars (2) are arranged longitudinally in the post-added wall (4) in multiple lengths; the wall stirrups (3) include a first stirrup (9) located in the middle wall (7) and forming a V shape, and a second stirrup (10) extending outward from both sides of the first stirrup (9) to the two side walls (8). The wall stirrups (3) are arranged horizontally in the post-added wall (4), and two are provided in the same horizontal direction, and the two wall stirrups (3) are arranged to be connected to each other; the tie bars (6) are located in the two side walls (8) and connect the two longitudinal reinforcement bars (2) located in the same horizontal direction.
2. A wooden column reinforced with an additional concrete wall according to claim 1, characterized in that: The wall stirrups (3) are arranged every 200mm along the vertical direction.
3. A wooden column reinforced with an additional concrete wall as described in claim 1, characterized in that: The tie bars (6) are arranged in groups every 200mm along the horizontal direction.
4. A wooden column reinforced with an additional concrete wall as described in claim 1, characterized in that: The additional wall (4) was poured in one go.
5. A wooden column reinforced with an additional concrete wall according to claim 1, characterized in that: The distance between the outermost ends of the two sides of the post-added wall (4) and the outermost ends of the two sides of the wall stirrups (3) is 100mm.