Corner column enlarged section structure based on outer wall protection

Abstract

The utility model discloses a corner post section enlarging structure based on outer wall protection. The corner post section enlarging structure comprises a corner post, a first outer wall, a second outer wall, section enlarging steel bars and embedded steel bars. The first outer wall and the second outer wall are built on the two perpendicular faces of the corner column respectively, the section-enlarged steel bars are of an L-shaped structure and bound and fixed to the inner sides of the two perpendicular faces of the corner column, and the two ends of each section-enlarged steel bar extend to the inner wall of the first outer wall and the inner wall of the second outer wall respectively. One ends of the embedded steel bars are respectively embedded and fixed in the corner post, the other ends of the embedded steel bars are respectively tied and fixed on the section-enlarged steel bars, and the section-enlarged steel bars are poured through concrete to form a corner post section-enlarged structure and are connected with the corner post to form an integral structure. The utility model relates to the technical field of building construction, and can solve the problem that a constructed outer wall is easy to damage in corner post section increasing construction in the prior art.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a structure for increasing the cross-section of corner columns based on external wall protection. Background Art

[0002] A corner column is a columnar structure constructed at the corner of a wall, used to connect the external walls on both sides. During the actual construction process, the cross-section of the corner column often needs to be increased due to load and other requirements. However, when the external walls on both sides of the corner column have been constructed, increasing the cross-section of the corner column requires connection with the external walls, and this conventional construction method will cause a certain degree of damage to the external walls, making it difficult to construct the increased cross-section of the corner column, and the conventional construction method for increasing the cross-section of the corner column cannot be applied. Therefore, a structure for increasing the cross-section of corner columns based on external wall protection is needed to solve the problem that the construction of increasing the cross-section of corner columns in the prior art is likely to damage the already constructed external walls. Summary of the Invention

[0003] The purpose of the utility model is to provide a structure for increasing the cross-section of corner columns based on external wall protection, which can solve the problem that the construction of increasing the cross-section of corner columns in the prior art is likely to damage the already constructed external walls.

[0004] The utility model is realized as follows:

[0005] A structure for increasing the cross-section of corner columns based on external wall protection includes a corner column, a first external wall, a second external wall, steel bars for increasing the cross-section, and post-inserted bars; the first external wall and the second external wall are respectively constructed on two mutually perpendicular surfaces of the corner column, the steel bars for increasing the cross-section are in an L-shaped structure and are tied and fixed on the inner sides of the two mutually perpendicular surfaces of the corner column, and the two ends of the steel bars for increasing the cross-section respectively extend to the inner walls of the first external wall and the second external wall; one ends of a plurality of post-inserted bars are respectively inserted and fixed in the corner column, and the other ends of the plurality of post-inserted bars are respectively tied and fixed on the steel bars for increasing the cross-section. The steel bars for increasing the cross-section are cast with concrete to form a structure for increasing the cross-section of the corner column and are connected with the corner column into an integral structure.

[0006] The steel bars for increasing the cross-section include main steel bars for increasing the cross-section and stirrups for increasing the cross-section. A plurality of main steel bars for increasing the cross-section are arranged parallel to the height direction of the corner column and are spaced on the inner sides of the two mutually perpendicular surfaces of the corner column. The stirrups for increasing the cross-section are in an L-shaped structure and are tied and fixed on the plurality of main steel bars for increasing the cross-section. A plurality of stirrups for increasing the cross-section are arranged at intervals along the height direction of the main steel bars for increasing the cross-section.

[0007] Both ends of the stirrups for increasing the cross-section are bent inward to form bending parts, and the bending parts at both ends of the stirrups for increasing the cross-section are respectively arranged parallel to the inner walls of the first external wall and the second external wall; the main steel bars for increasing the cross-section and the bending parts are tied and fixed to the corner column through post-inserted bars.

[0008] The post-embedded bars mentioned above include post-embedded bar hooks and short post-embedded bars; one end of the post-embedded bar hook is embedded and fixed in the corner column, and the other end of the post-embedded bar hook is in a hook-shaped structure and is tied to the main bars of the enlarged cross-section; one end of the short post-embedded bar is embedded and fixed in the corner column, and the other end of the short post-embedded bar overlaps with the bent part.

[0009] The length of the post-embedded bar hook embedded in the corner column is not less than 15 times the diameter of the post-embedded bar hook, and the length of the short post-embedded bar embedded in the corner column is not less than 15 times the diameter of the short post-embedded bar.

[0010] The overlapping length of the short post-embedded bar and the bent part is not less than 10 times the diameter of the short post-embedded bar.

[0011] Roughened parts are formed on two mutually perpendicular surfaces of the corner column, and both ends of the roughened parts extend to the inner walls of the first outer wall and the second outer wall. The concrete is connected to the corner column as an integral structure through the roughened parts.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. Since the utility model is provided with enlarged cross-section steel bars and post-embedded bars, the main bars of the enlarged cross-section are tied through the post-embedded bar hooks and are embedded and fixed on the outside of the corner column, and the stirrups of the enlarged cross-section are overlapped through the short post-embedded bars and are embedded and fixed on the outside of the corner column. The load of the enlarged cross-section structure of the corner column is transmitted to the corner column by means of post-embedded bars, which can ensure the construction of the enlarged cross-section of the corner column without damaging the first outer wall and the second outer wall, and ensure the integrity and aesthetics of the appearance.

[0014] 2. Since the utility model is provided with enlarged cross-section steel bars and concrete, after the concrete is poured, it is combined with the corner column through the roughened parts to form a whole. The enlarged cross-section steel bars and the concrete form a steel-concrete structure of the enlarged cross-section of the corner column, which has high structural strength and can meet the load requirements without implanting the connecting outer walls, thus ensuring the protection of the two side outer walls during the construction of the enlarged cross-section of the corner column and improving the construction economy and structural safety of the enlarged cross-section of the corner column. Description of the Drawings

[0015] Figure 1 is the construction plan view of the enlarged cross-section structure of the corner column based on the protection of the outer wall of the utility model.

[0016] In the figure, 1 is the corner column, 101 is the roughened part, 2 is the first outer wall, 3 is the second outer wall, 4 is the concrete, 501 is the main bar of the enlarged cross-section, 502 is the stirrup of the enlarged cross-section, 503 is the bent part, 601 is the post-embedded bar hook, and 602 is the short post-embedded bar. Detailed Embodiment

[0017] The following further describes the utility model with reference to the drawings and specific embodiments.

[0018] Please refer to the appendix Figure 1, A corner column enlarged cross-section structure based on external wall protection, including corner column 1, first external wall 2, second external wall 3, enlarged cross-section steel bars and implanted bars; the first external wall 2 and the second external wall 3 are respectively built on two mutually perpendicular surfaces of the corner column 1, the enlarged cross-section steel bars are in an L-shaped structure and are tied and fixed on the inner sides of the two mutually perpendicular surfaces of the corner column 1, and the two ends of the enlarged cross-section steel bars respectively extend to the inner walls of the first external wall 2 and the second external wall 3; one ends of several implanted bars are respectively implanted and fixed in the corner column 1, and the other ends of several implanted bars are respectively tied and fixed on the enlarged cross-section steel bars, and the enlarged cross-section steel bars are poured with concrete 4 to form a corner column enlarged cross-section structure and are connected to the corner column 1 into an integral structure.

[0019] The enlarged cross-section steel bars are connected and fixed to the corner column 1 by means of implanted bars. After the formwork is supported, concrete 4 is poured to form a corner column enlarged cross-section structure in a steel-concrete form, ensuring that the structural strength of the corner column enlarged cross-section structure meets the design requirements. The middle part of the corner column enlarged cross-section structure is connected to the corner column 1 as a whole, the two ends of the corner column enlarged cross-section structure are respectively connected to the first external wall 2 and the second external wall 3, and the load of the corner column enlarged cross-section structure is transmitted to the corner column 1 through the implanted bars, without causing damage to the first external wall 2 and the second external wall 3.

[0020] The enlarged cross-section steel bars include enlarged cross-section main bars 501 and enlarged cross-section stirrups 502. Several enlarged cross-section main bars 501 are arranged parallel to the height direction of the corner column 1 and are spaced on the inner sides of the two mutually perpendicular surfaces of the corner column 1. The enlarged cross-section stirrups 502 are in an L-shaped structure and are tied and fixed on several enlarged cross-section main bars 501, and several enlarged cross-section stirrups 502 are arranged at intervals along the height direction of the enlarged cross-section main bars 501.

[0021] The tying and fixing of the enlarged cross-section main bars 501 and the enlarged cross-section stirrups 502 ensure the structural strength and load capacity of the enlarged cross-section steel bars. The steel bar specifications, steel bar spacing, etc. of the enlarged cross-section main bars 501 and the enlarged cross-section stirrups 502 can be determined through precise calculation and design according to the cross-sectional area, load requirements, etc. of the corner column enlarged cross-section structure. This is a conventional means of the steel bar project and will not be elaborated here.

[0022] The two ends of the enlarged cross-section stirrups 502 are bent inward to form bending parts 503. The bending parts 503 at both ends of the enlarged cross-section stirrups 502 are respectively arranged parallel to the inner walls of the first external wall 2 and the second external wall 3; the enlarged cross-section main bars 501 and the bending parts 503 are connected and fixed to the corner column 1 by means of implanted bars.

[0023] The bending parts 503 are used for tying with the implanted bars to fix the enlarged cross-section stirrups 502. At the same time, the bending parts 503 are bent to the outer sides of the inner walls of the first external wall 2 and the second external wall 3, which can improve the structural strength of the connection part between the corner column enlarged cross-section structure and the first external wall 2 and the second external wall 3.

[0024] The post-embedded bars mentioned above include post-embedded bar hooks 601 and short post-embedded bars 602; one end of the post-embedded bar hook 601 is embedded and fixed in the corner column 1, and the other end of the post-embedded bar hook 601 is in a hook-like structure and is tied to the main bars 501 of the enlarged cross-section; one end of the short post-embedded bar 602 is embedded and fixed in the corner column 1, and the other end of the short post-embedded bar 602 is lapped with the bent part 503.

[0025] The number of the post-embedded bar hooks 601 can be adaptively adjusted according to the number of the main bars 501 of the enlarged cross-section and the horizontal force transfer requirements. Preferably, one post-embedded bar hook 601 can be arranged in the middle of each of the two faces of the corner column 1 to ensure the tying and fixing effect between the enlarged cross-section steel bars of the L-shaped structure and the corner column 1.

[0026] Two short post-embedded bars 602 are arranged to ensure the tying and fixing effect between the two ends of the enlarged cross-section steel bars and the corner column 1. The steel bar specifications of the post-embedded bar hooks 601 and the short post-embedded bars 602 can be adaptively selected according to actual requirements.

[0027] The length of the post-embedded bar hook 601 embedded in the corner column 1 is not less than 15 times the diameter of the post-embedded bar hook 601, and the length of the short post-embedded bar 602 embedded in the corner column 1 is not less than 15 times the diameter of the short post-embedded bar 602 to ensure the reliability of the embedding strength of the post-embedded bars.

[0028] The lapping length between the short post-embedded bar 602 and the bent part 503 is not less than 10 times the diameter of the short post-embedded bar 602 to ensure the reliability of the lapping between the short post-embedded bar 602 and the bent part 503.

[0029] Roughened parts 101 are formed on two mutually perpendicular faces of the corner column 1, and both ends of the roughened parts 101 extend to the inner walls of the first exterior wall 2 and the second exterior wall 3. The concrete 4 is connected with the corner column 1 into an integral structure through the roughened parts 101.

[0030] The use of the roughened parts 101 can make the bonding strength between the concrete 4 and the corner column 1 higher after pouring, so as to ensure the integrity of the corner column enlarged cross-section structure and the corner column 1 and its load performance.

[0031] Preferably, the depth of the roughened part 101 is not less than 1 cm, and the depth of the roughened part 101 can be adaptively adjusted according to actual construction requirements to ensure that the concrete 4 and the corner column 1 have a relatively high bonding strength.

[0032] Please refer to the appendix Figure 1 , and the construction method of the present utility model is as follows:

[0033] Step 1: Roughen two mutually perpendicular faces of the corner column 1 to form roughened parts 101 with a roughening depth of 1 cm, and clean the roughened parts 101.

[0034] Step 2: implant rebar hooks 601 and short rebars 602 on two mutually perpendicular surfaces of the corner column 1. Preferably, two rebar hooks 601 and two short rebars 602 are provided. The depth of implanting the rebar hooks 601 and the short rebars 602 into the corner column 1 is 15d, i.e., 15 times the diameter.

[0035] Step 3: Fix the enlarged cross-section main reinforcement 501, which is arranged between the first exterior wall 2 and the second exterior wall 3 in parallel with the height direction of the corner column 1. The enlarged cross-section stirrups 502 of the L-shaped structure are vertically tied to the enlarged cross-section main reinforcement 501 and are arranged at intervals along the length direction of the enlarged cross-section main reinforcement 501 to form enlarged cross-section steel bars.

[0036] Step 4: Tie the hook structure of the implanted rebar hook 601 to the enlarged cross-section main reinforcement 501 at the corresponding position; bend both ends of the enlarged cross-section stirrup 502 to form a bending portion 503 parallel to the inner walls of the first exterior wall 2 and the second exterior wall 3, and overlap the short implanted rebar 602 on the bending portion 503 at the corresponding position by single-sided welding, and the overlap length is 10d, which is 10 times the diameter.

[0037] Step 4: Set up a template with an enlarged cross-section, and use concrete with a strength one level higher than that of the corner column 1 for pouring, so that the concrete 4 is connected to the corner column 1 through the roughened portion 101 to form a whole, forming a corner column with an enlarged cross-section structure, and both ends of the corner column with an enlarged cross-section structure extend to connect with the inner walls of the first exterior wall 2 and the second exterior wall 3.

[0038] The above are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A corner column enlarged cross-section structure based on exterior wall protection, characterized in that: Including a corner Column (1), first exterior wall (2), second exterior wall (3), enlarged-section steel bars and post-inserted bars; the first exterior wall (2) and the second exterior wall (3) are respectively built on two mutually perpendicular faces of the corner column (1), the enlarged-section steel bars are in an L-shaped structure and are tied and fixed on the inner sides of the two mutually perpendicular faces of the corner column (1), and the two ends of the enlarged-section steel bars respectively extend to the inner walls of the first exterior wall (2) and the second exterior wall (3); one ends of a number of post-inserted bars are respectively inserted and fixed in the corner column (1), and the other ends of the number of post-inserted bars are respectively tied and fixed on the enlarged-section steel bars. The enlarged-section steel bars are cast with concrete (4) to form an enlarged-section structure of the corner column and are connected with the corner column (1) into an integral structure.

2. The enlarged cross-section structure of the corner column based on the exterior wall protection according to claim 1 is characterized in that: The enlarged-section steel bars include enlarged-section main bars (501) and enlarged-section stirrups (502); a number of enlarged-section main bars (501) are arranged parallel to the height direction of the corner column (1) and are spaced on the inner sides of the two mutually perpendicular faces of the corner column (1), the enlarged-section stirrups (502) are in an L-shaped structure and are tied and fixed on the number of enlarged-section main bars (501), and a number of enlarged-section stirrups (502) are arranged at intervals along the height direction of the enlarged-section main bars (501).

3. The corner column enlarged cross-section structure based on exterior wall protection according to claim 2, characterized in that: Both ends of the enlarged-section stirrups (502) are bent inward to form bent portions (503), and the bent portions (503) at both ends of the enlarged-section stirrups (502) are respectively arranged parallel to the inner walls of the first exterior wall (2) and the second exterior wall (3); the enlarged-section main bars (501) and the bent portions (503) are tied and fixed to the corner column (1) through post-inserted bars.

4. The enlarged cross-section structure of the corner column based on the exterior wall protection according to claim 3, wherein: The post-inserted bars include post-inserted bar hooks (601) and short post-inserted bars (602); one end of the post-inserted bar hook (601) is inserted and fixed in the corner column (1), and the other end of the post-inserted bar hook (601) is in a hook-shaped structure and is tied to the enlarged-section main bar (501); one end of the short post-inserted bar (602) is inserted and fixed in the corner column (1), and the other end of the short post-inserted bar (602) is lapped with the bent portion (503).

5. The enlarged cross-section structure of the corner column based on the exterior wall protection according to claim 4, characterized in that: The length of the post-inserted bar hook (601) inserted into the corner column (1) is not less than 15 times the diameter of the post-inserted bar hook (601), and the length of the short post-inserted bar (602) inserted into the corner column (1) is not less than 15 times the diameter of the short post-inserted bar (602).

6. The enlarged cross-section structure of the corner column based on the exterior wall protection according to claim 4, characterized in that: The lap length of the short post-inserted bar (602) and the bent portion (503) is not less than 10 times the diameter of the short post-inserted bar (602).

7. The enlarged cross-section structure of the corner column based on the exterior wall protection according to claim 1, characterized in that: Roughened portions (101) are formed on the two mutually perpendicular faces of the corner column (1), and both ends of the roughened portions (101) extend to the inner walls of the first exterior wall (2) and the second exterior wall (3). The concrete (4) is connected with the corner column (1) into an integral structure through the roughened portions (101).

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