Basement-containing main building outdoor step anti-settlement structure

Abstract

The utility model provides a main building outdoor step anti-sedimentation structure comprising a basement, and belongs to the technical field of step buildings. The problem that an existing outdoor step cracks is solved. A cushion layer is built at the bottom of the basement, a foundation pit is arranged on one side of the basement, an outdoor step comprises a plurality of step panels and a step brick base wall body, the step panels are fixedly connected to the tops of the step brick base wall bodies in a step shape, the cushion layer extends to the bottom of the foundation pit, and the foundation pit is filled with backfill soil. The anti-sedimentation structure comprises a simply-supported plate, a brick wall fixedly connected in the foundation pit and a supporting foundation fixedly connected in the foundation pit, the bottom of the brick wall and the bottom of the supporting foundation abut against the cushion layer, the inner end of the simply-supported plate is fixedly connected with the top of the brick wall, the outer end of the simply-supported plate is fixedly connected with the top of the supporting foundation, and the step brick foundation wall body is fixedly connected to the simply-supported plate. The basement-containing main building outdoor step anti-settlement structure has the advantage that the outdoor step cannot crack.

Description

Technical Field

[0001] The utility model belongs to the technical field of stepped buildings and relates to a settlement prevention structure for outdoor steps of a main building with a basement. Background Art

[0002] With the development of society, there are more and more housing buildings, and some housing buildings also have basements. When constructing a basement, a foundation pit needs to be dug in the ground, a cushion layer is laid at the bottom of the foundation pit, and then the basement is built on the cushion layer. After the basement construction is completed, the earthwork is backfilled to fill the foundation pit and complete the construction of the basement.

[0003] After the construction of some housing building basements is completed, the main building is higher than the ground, and outdoor steps need to be set in front of the main building to meet the needs of users to enter and exit. When backfilling the foundation pit, there is a problem of insufficient construction compactness of the backfill soil. Especially after experiencing the rainy season, it often leads to problems such as local settlement and deformation of the outdoor steps. In particular, problems such as deformation, cracking, and local settlement caused by uneven settlement of the outdoor steps of the main building in soft soil areas are relatively common. Summary of the Invention

[0004] The purpose of the utility model is to provide a settlement prevention structure for outdoor steps of a main building with a basement to solve the technical problem of how to prevent the outdoor steps from cracking, aiming at the above problems existing in the prior art.

[0005] The purpose of the utility model can be achieved by the following technical solutions: A settlement prevention structure for outdoor steps of a main building with a basement, a cushion layer is built at the bottom of the basement, there is a foundation pit on one side of the basement, the outdoor steps include a plurality of step panels and a step brick foundation wall, the step panels are fixedly connected to the top of the step brick foundation wall in a stepped shape, and it is characterized in that the cushion layer extends to the bottom of the foundation pit, the foundation pit is filled with backfill soil, the settlement prevention structure includes a simply supported slab, a brick wall fixedly connected in the foundation pit, and a support foundation fixedly connected in the foundation pit. The bottom of the brick wall and the bottom of the support foundation both abut against the cushion layer, the inner end of the simply supported slab is fixedly connected to the top of the brick wall, the outer end is fixedly connected to the top of the support foundation, and the step brick foundation wall is fixedly connected to the simply supported slab.

[0006] The outdoor steps are installed on a simply supported slab, which is installed on top of a brick wall and a supporting foundation. The bottom of the brick wall and the supporting foundation abuts against the cushion layer, and the basement also abuts against the cushion layer, enabling the outdoor steps to settle synchronously with the basement and the main building, preventing the outdoor steps from cracking and being less prone to damage. The cushion layer extends to the bottom of the foundation pit, increasing the cushion layer area, which can better disperse the weights of the basement, the main building, and the outdoor steps, reducing the deformation and cracking of the outdoor steps caused by uneven settlement of the foundation, and enhancing the service life of the outdoor steps. At the same time, as the load-bearing structures of the outdoor steps, the simply supported slab, the brick wall, and the supporting foundation can prevent the outdoor steps from cracking even if there are problems such as insufficient compactness of the backfill soil and local settlement of the backfill soil during the rainy season. The simply supported slab has a certain strength and is not easily deformed, but also has sufficient elasticity, providing a good buffering effect on the outdoor steps, making the stress deformation more gentle, preventing the outdoor steps from settling easily, and preventing the outdoor steps from cracking.

[0007] In the above-mentioned anti-settlement structure for the outdoor steps of a main building with a basement, a supporting wall for supporting the main building is fixedly connected in the foundation pit. The supporting wall is located between the basement and the supporting foundation, and the brick wall is arranged along the outer side of the supporting wall. The main building includes a porch. The supporting wall is in the foundation pit and is used to support the porch. The brick wall and the supporting wall are fixedly connected in a fitting manner, enhancing the strength of the brick wall, enabling the brick wall to better support the simply supported slab and the outdoor steps, and preventing the outdoor steps from cracking. At the same time, the brick wall also plays a waterproof role, reducing the erosion of rainwater on the basement and enhancing the service life of the building.

[0008] In the above-mentioned anti-settlement structure for the outdoor steps of a main building with a basement, a supporting block protruding outward is fixedly connected to the bottom of the supporting wall. The supporting block abuts against the cushion layer, and the bottom of the brick wall is fixedly connected to the supporting block. The setting of the supporting block increases the stress area, avoids pressure concentration, and enables the cushion layer to better support the brick wall and the supporting wall through the supporting block.

[0009] In the above-mentioned anti-settlement structure for the outdoor steps of a main building with a basement, the anti-settlement structure further includes a reinforced cushion plate fixedly connected to the top of the backfill soil. The reinforced cushion plate is fixedly connected to the simply supported slab. The simply supported slab is located between the reinforced cushion plate and the main building, and the step panel extends and covers the top of the reinforced cushion plate. The reinforced cushion plate is set according to actual needs, which is equivalent to extending the length of the steps, enabling the steps to better connect with roads, etc.

[0010] In the above-mentioned anti-settlement structure for the outdoor steps of a main building with a basement, the simply supported slab and the reinforced cushion plate are integrally precast or cast in place on site. The simply supported slab and the reinforced cushion plate are of an integral structure, enhancing the strength.

[0011] In the above anti-settlement structure of the outdoor steps of the main building with a basement, a plain soil compaction layer is formed by tamping the top of the backfill soil, and both the simply supported slab and the reinforced pad are abutted against the plain soil compaction layer. The plain soil compaction layer can better support the simply supported slab and the reinforced pad, preventing the outdoor steps from cracking; the backfill soil in the foundation pit is compacted in layers, enabling the backfill soil to better support the anti-settlement structure, endowing the anti-settlement structure with sufficient strength, and thus better supporting the outdoor steps to prevent them from cracking.

[0012] In the above anti-settlement structure of the outdoor steps of the main building with a basement, a filling space exists in the step brick foundation wall, and the filling space is filled with lightweight concrete to form a filled concrete layer. This structure ensures that the outdoor steps have sufficient strength while being relatively light in weight, reducing the settlement of the outdoor steps and preventing them from cracking.

[0013] In the above anti-settlement structure of the outdoor steps of the main building with a basement, a reinforced concrete layer is poured between the step panel and the filled concrete layer. The setting of the reinforced concrete layer enhances the strength of the outdoor steps, enabling them to better withstand pressure and making them less prone to cracking and damage.

[0014] Compared with the prior art, the anti-settlement structure of the outdoor steps of the main building with a basement provided by the present utility model has the following advantages:

[0015] 1. The outdoor steps of the present structure are installed on the simply supported slab, which is installed on the top of the brick wall and the supporting foundation. The bottom of the brick wall and the supporting foundation abuts against the cushion layer, and the basement also abuts against the cushion layer, enabling the outdoor steps to settle synchronously with the basement and the main building, preventing the outdoor steps from cracking and being less prone to damage.

[0016] 2. The simply supported slab, brick wall and supporting foundation of the present structure serve as the load-bearing structure of the outdoor steps. Even if there are problems such as insufficient compactness of the backfill soil and local settlement of the backfill soil during the rainy season, the outdoor steps will not crack.

[0017] 3. The brick wall of the anti-settlement structure of the present invention is fixedly connected to the supporting wall, enabling the brick wall to better support the outdoor steps and prevent them from cracking. At the same time, the brick wall also plays a waterproof role, reducing the erosion of rainwater on the basement and extending the service life of the building. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is the overall layout diagram of the basement, main building, outdoor steps and anti-settlement structure.

[0019] Figure 2 is the overall structural schematic diagram of the outdoor steps and anti-settlement structure.

[0020] In the figure, 1 is the basement; 2 is the cushion; 3 is the foundation pit; 4 is the step panel; 5 is the step brick foundation wall; 6 is the backfill soil; 7 is the simply supported slab; 8 is the brick wall; 9 is the support foundation; 10 is the main building; 11 is the support wall; 12 is the support block; 13 is the reinforcement backing plate; 14 is the rammed plain soil layer; 15 is the filling space; 16 is the filling concrete layer; 17 is the reinforced concrete layer. Detailed implementation manners

[0021] The following are specific embodiments of the present invention and, in conjunction with the accompanying drawings, further describe the technical solutions of the present invention, but the present invention is not limited to these embodiments.

[0022] As Figure 1 、 Figure 2 shown, a basement 1 is built below the main building 10, and an outdoor step is built in front of the main building 10. The outdoor step is fixedly connected to the settlement prevention structure, and the settlement prevention structure includes a simply supported slab 7, a brick wall 8, a support foundation 9, and a reinforcement backing plate 13.

[0023] A cushion 2 is built at the bottom of the basement 1. One side of the basement 1 has a foundation pit 3. The cushion 2 extends to the bottom of the foundation pit 3, and the foundation pit 3 is filled with backfill soil 6. A support wall 11 for supporting the main building 10 is fixedly connected in the foundation pit 3. The bottom of the support wall 11 is fixedly connected with a support block 12 protruding outward, and the support block 12 abuts against the cushion 2.

[0024] Both the brick wall 8 and the support foundation 9 are fixedly connected in the foundation pit 3. Specifically, the support wall 11 is located between the basement 1 and the support foundation 9. The brick wall 8 is arranged along the outer side of the support wall 11. The bottom of the brick wall 8 is fixedly connected to the support block 12. The bottom of the support foundation 9 abuts against the cushion 2. The inner end of the simply supported slab 7 is fixedly connected to the top of the brick wall 8, and the outer end is fixedly connected to the top of the support foundation 9. The top of the backfill soil 6 is rammed to form a rammed plain soil layer 14. Both the simply supported slab 7 and the reinforcement backing plate 13 are fixedly connected to the rammed plain soil layer 14 on the top of the backfill soil 6. The reinforcement backing plate 13 is fixedly connected to the simply supported slab 7, and the simply supported slab 7 is located between the reinforcement backing plate 13 and the main building 10. In this embodiment, the simply supported slab 7 and the reinforcement backing plate 13 are integrally prefabricated. In actual production, the simply supported slab 7 and the reinforcement backing plate 13 are integrally cast in place on site.

[0025] The outdoor step includes a step panel 4 and a step brick foundation wall 5. There is a filling space 15 in the step brick foundation wall 5. The filling space 15 is filled with lightweight concrete to form a filling concrete layer 16. A reinforced concrete layer 17 is cast and fixedly connected to the top of the filling concrete layer 16. The top of the reinforced concrete layer 17 and the step brick foundation wall 5 are fixedly connected to the step panel 4. The step panel 4 is arranged in a stepped shape, and the step panel 4 extends and covers the top of the reinforcement backing plate 13.

[0026] Construction steps:

[0027] Step 1: Excavate the foundation pit 3, pour the cushion layer 2, and extend the cushion layer 2 from the bottom of the basement 1 to the bottom of the outdoor steps.

[0028] Step 2: After the waterproof construction of the supporting wall 11 is completed, a 370-mm-thick brick wall 8 can be built on the outside of the supporting wall 11 close to it. The brick wall 8 is used to support the outdoor steps, serve as a waterproof protective layer, and also serve as a supporting foundation 9.

[0029] Step 3: After the backfill soil 6 is backfilled as required, the simply supported slab 7 is constructed. After the simply supported slab 7 reaches the set strength, a stepped brick foundation wall 5 is built on the simply supported slab 7, a lightweight concrete is poured to form a filling concrete layer 16, and a reinforced concrete layer 17 is poured on the filling concrete layer 16.

[0030] Step 4: To prevent settlement at the junction of the hard pavement of the sidewalk and the bottom step tread, a reinforced cushion plate 13 can be poured after the backfill soil 6 is completed. The reinforced cushion plate 13 serves as the foundation for the hard pavement of the sidewalk, and the step panel 4 is extended and laid on the reinforced cushion plate 13.

[0031] Step 5: Finally, the step panel 4 is constructed.

[0032] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art to which the present invention pertains can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0033] Although terms such as basement 1, cushion layer 2, foundation pit 3, step panel 4, stepped brick foundation wall 5, backfill soil 6, simply supported slab 7, brick wall 8, supporting foundation 9, main building 10, supporting wall 11, supporting block 12, reinforced cushion plate 13, rammed plain soil layer 14, filling space 15, filling concrete layer 16, and reinforced concrete layer 17 are used more frequently in this article, the possibility of using other terms is not excluded. The use of these terms is only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitation is contrary to the spirit of the present invention.

Claims

1. An anti-settlement structure for outdoor steps of a main building with a basement. A cushion layer (2) is built at the bottom of the basement (1). There is a foundation pit (3) on one side of the basement (1). The outdoor steps include several step panels (4) and a step brick foundation wall (5). The step panels (4) are fixedly connected to the top of the step brick foundation wall (5) in a stepped shape. It is characterized in that, The cushion layer (2) extends to the bottom of the foundation pit (3), and the foundation pit (3) is filled with backfill soil (6). The anti-settlement structure includes a simply supported slab (7), a brick wall (8) fixed in the foundation pit (3), and a support foundation (9) fixed in the foundation pit (3). The bottom of the brick wall (8) and the bottom of the support foundation (9) both abut against the cushion layer (2). The inner end of the simply supported slab (7) is fixedly connected to the top of the brick wall (8), and the outer end is fixedly connected to the top of the support foundation (9). The stepped brick foundation wall (5) is fixedly connected to the simply supported slab (7).

2. The anti-settlement structure for the outdoor steps of the main building with a basement according to claim 1, wherein A support wall (11) for supporting the main building (10) is fixed in the foundation pit (3). The support wall (11) is located between the basement (1) and the support foundation (9), and the brick wall (8) is arranged along the outer side of the support wall (11).

3. The anti-settlement structure for the outdoor steps of the main building with a basement according to claim 2, characterized in that, A support block (12) protruding outward is fixedly connected to the bottom of the support wall (11). The support block (12) abuts against the cushion layer (2), and the bottom of the brick wall (8) is fixedly connected to the support block (12).

4. A settlement prevention structure for outdoor steps of a main building with a basement according to claim 1 or 2 or 3, characterized in that, The anti-settlement structure further includes a reinforced concrete slab (13) fixed to the top of the backfill soil (6). The reinforced concrete slab (13) is fixedly connected to the simply supported slab (7). The simply supported slab (7) is located between the reinforced concrete slab (13) and the main building (10). The stepped panel (4) extends and covers the top of the reinforced concrete slab (13).

5. The anti-settlement structure for the outdoor steps of the main building with a basement according to claim 4, characterized in that, The simply supported slab (7) and the reinforced concrete slab (13) are integrally precast or cast in place on site.

6. The anti-settlement structure for the outdoor steps of the main building with a basement according to claim 4, characterized in that, The top of the backfill soil (6) is tamped to form a rammed plain soil layer (14). Both the simply supported slab (7) and the reinforced concrete slab (13) abut against the rammed plain soil layer (14).

7. A settlement prevention structure for outdoor steps of a main building with a basement according to claim 1 or 2 or 3, characterized in that, There is a filling space (15) in the stepped brick foundation wall (5), and the filling space (15) is filled with lightweight concrete to form a filled concrete layer (16).

8. A settlement prevention structure for outdoor steps of a main building with a basement according to claim 7, characterized in that, A reinforced concrete layer (17) is poured between the stepped panel (4) and the filled concrete layer (16).

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