Building foundation structure with skirt room attached to building main body

Abstract

The utility model relates to the field of buildings, in particular to a building foundation structure with a building main body and a skirt house. A settlement joint is arranged between the building main body foundation and the skirt room foundation; the building main body foundation comprises a solid brick structure flush with the top of the cantilever beam plate; the skirt room foundation comprises a basement retaining wall which is vertically arranged; a horizontal cantilever beam plate is lifted out from the top of the basement retaining wall to the side where the building body is located, a settlement joint is formed between the cantilever beam plate and the solid brick structure, and the settlement joint is located over the strip-shaped foundation; a plurality of concrete inclined column supports are poured at one end, close to the settlement joint, of the cantilever beam plate at certain intervals, and the other ends of the inclined column supports obliquely extend downwards to the junction of the basement retaining wall and the raft foundation and are poured into a whole. By means of the outriggers and the inclined columns, the conflict between the skirt room foundation and the main building foundation is solved, and under the condition that normal use is met, foundation stress is more reasonable.

Description

Technical Field

[0001] The utility model relates to the field of construction, in particular to a building foundation structure of a building main body with a podium, wherein the main building and the podium have a large height difference and different foundation burial depths. Background Art

[0002] Podium refers to an ancillary building with a height of no more than 24 meters that is connected to a high-rise building outside the projection range of the main body of the high-rise building. Podiums are mainly used for commercial and public services, such as shopping malls, parking lots, rest and entertainment venues, etc.

[0003] Since the project entity has multiple functions such as fire water tank, underground pump room, underground laboratory, ground laboratory, electrical control room and office, the structure is complex. The main building is usually called the main building. The main building is a reinforced concrete strip foundation, and the basement under the podium is a reinforced concrete retaining wall. Due to the large height difference between the two and the different foundation forms, settlement joints need to be set to reduce the uneven settlement of the main structure. However, the reinforced concrete retaining wall of the podium conflicts with the strip foundation of the main building. If it is handled according to the conventional solution, it cannot meet the functional requirements of the building. Utility Model Content

[0004] In order to solve the above problems existing in the prior art, the utility model provides a building foundation structure with a building main body and a podium, which not only solves the conflict between the podium foundation and the main building foundation, but also makes the foundation force more reasonable while meeting normal use.

[0005] The technical solution of the utility model is:

[0006] A building foundation structure with a main building and a podium, wherein a reinforced concrete strip foundation is arranged below the main building, a reinforced concrete basement retaining wall is arranged below the podium, and a settlement joint of a certain width is arranged between the main building foundation and the podium foundation;

[0007] The main building foundation on one side of the settlement joint includes a solid brick structure flush with the top of the cantilever slab, and the solid brick structure is provided with a reinforced concrete strip foundation and a foundation cushion layer from top to bottom; and also includes a ground structure provided on the side of the solid brick structure away from the settlement joint;

[0008] The podium foundation on the other side of the settlement joint includes a vertically arranged basement retaining wall, a raft foundation is arranged at the bottom of the basement retaining wall, and a foundation cushion is arranged under the raft foundation; a horizontal cantilevered beam plate is integrally cast on the top of the basement retaining wall and cantilevered toward the side where the main building is located, and the settlement joint is between the cantilevered beam plate and the solid brick structure, and the settlement joint is located directly above the strip foundation;

[0009] A plurality of concrete inclined column supports are cast at a certain interval at one end of the cantilever beam slab near the settlement joint, and the other end of the inclined column supports extends obliquely downward to the junction of the basement retaining wall and the raft foundation and is cast as a whole.

[0010] As a preferred technical solution, the basement retaining wall includes a transverse retaining wall and a longitudinal retaining wall which are perpendicular to each other. The longitudinal retaining wall is perpendicular to the settlement joint. Each longitudinal retaining wall is provided with an inclined column support on one side close to the settlement joint.

[0011] As a preferred technical solution, the width of the settlement joint is 100 mm.

[0012] As a preferred technical solution, the cantilever size of the cantilever beam is 3m.

[0013] The beneficial effects of the utility model are:

[0014] 1. The inclined column support of the utility model solves the problem of excessive cantilever size of the cantilever beam and the instability of the cantilever beam and structure.

[0015] 2. The cantilever beam and inclined column support of the utility model solve the problem of conflict between the two foundation positions.

[0016] 3. The utility model meets the normal use requirements of the structure's reinforcement, deflection, cracks and bearing capacity.

[0017] 4. The utility model meets the requirements of uneven settlement of the structure.

[0018] 5. The utility model solves the hidden danger that the concrete retaining wall is prone to cracking during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view of the overall structure of the utility model;

[0020] Figure 2 It is a top view of the overall structure of the utility model.

[0021] In the figure:

[0022] 1. Foundation cushion; 2. Raft foundation; 3. Inclined column support; 4. Cantilever beam; 5. Basement retaining wall; 6. Strip foundation; 7. Solid brick structure; 8. Ground structure; 9. Settlement joint. DETAILED DESCRIPTION

[0023] The specific structure, characteristics and innovative features of the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model.

[0024] See attached Figure 1-2The utility model provides a building foundation structure with a main building and a podium. A reinforced concrete strip foundation 6 is arranged under the main building, and a reinforced concrete basement retaining wall 5 is arranged under the podium. The basement is used to arrange a fire water tank, an underground pump room, an underground laboratory, etc. Since the excavation line during the construction of the reinforced concrete retaining wall will disturb the bearing layer under the strip foundation 6 of the main building, so that the strip foundation 6 acts partly on the original soil and partly on the disturbed backfill soil, in order to prevent the main building from being easily cracked during use due to this phenomenon, a settlement joint 9 is set between the main building foundation and the podium foundation;

[0025] The main building foundation on one side of the settlement joint 9 includes a solid brick structure 7 flush with the top of the cantilever slab 4, and the solid brick structure 7 is provided with a reinforced concrete strip foundation 6 and a foundation cushion layer 1 from top to bottom; it also includes a ground structure 8 arranged on the side of the solid brick structure 7 away from the settlement joint 9.

[0026] The podium foundation on the other side of the settlement joint 9 includes a vertically arranged basement retaining wall 5, a raft foundation is provided at the bottom of the basement retaining wall 5, and a foundation cushion layer 1 is provided under the raft foundation; in the present embodiment, the concrete retaining wall is far away from the main body of the building to avoid the position conflict of the two foundations; in order to meet the building function, a horizontal cantilever beam 4 is integrally cast on the top of the basement retaining wall 5 and cantilevered toward the side where the main body of the building is located, and the settlement joint 9 is between the cantilever beam 4 and the solid brick structure 7. Since the settlement joint 9 is located directly above the strip foundation 6, it not only solves the problem of easy cracking of the main body of the building, but also avoids the position conflict between the reinforced concrete retaining wall and the strip foundation 6 of the main body of the building; preferably, the width of the settlement joint 9 is 100 mm; the cantilevered size of the cantilever beam 4 is 3 m.

[0027] Because the cantilever beam 4 has a large cantilever size, for safety reasons, a plurality of concrete inclined column supports 3 are cast at a certain interval at one end of the cantilever beam 4 near the settlement joint 9, and the other end of the inclined column support 3 extends obliquely downward to the junction of the basement retaining wall 5 and the raft foundation and is cast as a whole; specifically, according to actual needs, the basement retaining wall 5 includes mutually perpendicular transverse retaining walls and longitudinal retaining walls so as to separate different areas of the basement; the longitudinal retaining wall is perpendicular to the settlement joint 9, and each longitudinal retaining wall is provided with an inclined column support 3 on one side close to the settlement joint 9, which neither destroys the overall layout of the basement nor meets the needs of structural stability.

[0028] Through calculation, the uneven settlement of the main building and the podium of this structure meets the limit requirements under normal use; the reinforcement, deflection and cracks of the cantilever beam slab 4 meet the requirements of bearing capacity and normal use; the configuration of the raft foundation 2 meets the requirements of bearing capacity and normal use; the overall index verification of the structure meets the requirements of bearing capacity and normal use.

[0029] The above embodiments describe the present invention in detail, but the above contents are only preferred embodiments of the present invention and cannot be considered to limit the scope of implementation of the present invention. In practical applications, various changes can be made to the form and details, which should all fall within the scope of the patent coverage of the present invention.

Claims

1. A building foundation structure with a main building and a podium, wherein a reinforced concrete strip foundation is arranged below the main building, and a reinforced concrete basement retaining wall is arranged below the podium, characterized in that: Settlements of a certain width are set between the main building foundation and the podium foundation; The main building foundation on one side of the settlement joint includes a solid brick structure flush with the top of the cantilever slab, and the solid brick structure is provided with a reinforced concrete strip foundation and a foundation cushion layer from top to bottom; and also includes a ground structure provided on the side of the solid brick structure away from the settlement joint; The podium foundation on the other side of the settlement joint includes a vertically arranged basement retaining wall, a raft foundation is arranged at the bottom of the basement retaining wall, and a foundation cushion is arranged under the raft foundation; a horizontal cantilevered beam plate is integrally cast on the top of the basement retaining wall and cantilevered toward the side where the main building is located, and the settlement joint is between the cantilevered beam plate and the solid brick structure, and the settlement joint is located directly above the strip foundation; A plurality of concrete inclined column supports are cast at a certain interval at one end of the cantilever beam slab near the settlement joint, and the other end of the inclined column supports extends obliquely downward to the junction of the basement retaining wall and the raft foundation and is cast as a whole.

2. The building infrastructure structure with a main building and a podium as claimed in claim 1, characterized in that: The basement retaining wall comprises a transverse retaining wall and a longitudinal retaining wall which are perpendicular to each other. The longitudinal retaining wall is perpendicular to the settlement joint. An inclined column support is arranged on one side of each longitudinal retaining wall close to the settlement joint.

3. The building infrastructure structure with a main building and a podium as claimed in claim 1 or 2, characterized in that: The width of the settlement joint is 100 mm.

4. The building infrastructure structure with a main building and a podium as claimed in claim 1 or 2, characterized in that: The cantilevered dimension of the cantilever beam plate is 3m.

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