CN117513396A - Foundation-free structure at junction of basements of different layers - Google Patents
Foundation-free structure at junction of basements of different layers Download PDFInfo
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- CN117513396A CN117513396A CN202311490538.0A CN202311490538A CN117513396A CN 117513396 A CN117513396 A CN 117513396A CN 202311490538 A CN202311490538 A CN 202311490538A CN 117513396 A CN117513396 A CN 117513396A
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- 238000010276 construction Methods 0.000 claims abstract description 20
- 238000009412 basement excavation Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/34—Foundations for sinking or earthquake territories
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/16—Arrangement or construction of joints in foundation structures
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The invention relates to a foundation-free structure at the junction of basements of different layers, comprising; a basement exterior wall between the high basement foundation and the low basement foundation; the upper chord beams are arranged above the outer wall of the basement and connected with the outer wall of the basement, one end of each upper chord beam is connected with the high-level basement foundation, the other end of each upper chord beam is connected with the vertical component on the low-level basement foundation, and the upper chord beams are arranged at intervals along the length direction of the outer wall of the basement; the lower chord beams are arranged below the basement outer wall and connected with the basement outer wall, two ends of each lower chord beam are respectively connected with the high-position basement foundation and the low-position basement foundation, and the lower chord beams are arranged at intervals along the length direction of the basement outer wall. The utility model provides a through last string roof beam and string roof beam load-carrying basement outer wall's forward load and reverse load down, reduce construction work load and cost, strengthen the mutual constraint of both sides basis horizontal direction, connect the basement junction basis of different layers and form wholly, avoided overall structure's uneven subsidence.
Description
Technical Field
The invention relates to the technical field of building design, in particular to a foundation-free structure at the junction of basements of different floors.
Background
Because of the requirement of building functions, the condition that basement layers in different areas in the same building are inconsistent often occurs, and when the position of basement floor change is positioned in the middle of a column span, namely, a basement outer wall cannot be placed on the basis of the existing column network, certain measures are required to be taken to realize transition of junction parts of basements of different layers.
The traditional practice is to arrange a compression-resistant and pulling-resistant pile and a bearing platform foundation thereof between two foundations of different layers corresponding to the basement outer wall, so as to bear the forward load of the basement outer wall and simultaneously bear the reverse load of water buoyancy. This approach has the following disadvantages: the workload of foundation excavation and supporting and the workload of pile foundation and bearing platform construction and detection are increased, and the overall cost is high; the mutual constraint of the foundations in the horizontal direction is poor, and the foundations on two sides cannot form good horizontal supports; the vertical load born by the foundation added at the junction of the basements of different layers in the middle of the column span is greatly different from the load of the surrounding foundation, so that the settlement amount at the junction is inconsistent with the settlement of the surrounding foundation, and the uneven settlement of the foundation is easy to cause.
Disclosure of Invention
Based on the above description, the invention provides a foundation structure-free structure at the junction of basements of different floors, so as to solve the problems that the manufacturing cost is high, the foundations on two sides cannot form good horizontal support, and uneven settlement of the foundations is easy to cause.
The technical scheme for solving the technical problems is as follows:
the application provides a no foundation structure of different layers basement handing-over department constructs, and the technical scheme who adopts is as follows:
a foundation-less structure at a junction of a basement of different floors, comprising;
a basement exterior wall between the high basement foundation and the low basement foundation;
the upper chord beams are arranged above the basement wall and connected with the basement wall, one end of each upper chord beam is connected with a high-level basement foundation, the other end of each upper chord beam is connected with a vertical component on a low-level basement foundation, and the upper chord beams are arranged at intervals along the length direction of the basement wall;
the lower chord beams are arranged below the basement outer wall and connected with the basement outer wall, two ends of each lower chord beam are respectively connected with a high-position basement foundation and a low-position basement foundation, and the lower chord beams are arranged at intervals along the length direction of the basement outer wall.
On the basis of the technical scheme, the invention can be improved as follows.
Preferably, the lower chord beam comprises a horizontal section arranged between the basement outer wall and the low-level basement foundation, and the horizontal section is positioned below the basement outer wall and connected with the basement outer wall and the low-level basement foundation.
Preferably, a first connecting beam is arranged at the top of the basement outer wall, the first connecting beam is arranged along the length direction of the basement outer wall, and the first connecting beam is connected with the basement outer wall and a plurality of upper chord beams.
Preferably, the beam width of the first connecting beam is consistent with the thickness of the outer wall of the basement, and the beam width of the first connecting beam Liang Hou is consistent with the thickness of the upper chord beam.
Preferably, a second connecting beam is arranged at the bottom of the basement outer wall, the second connecting beam is arranged along the length direction of the basement outer wall, and the second connecting beam is connected with the basement outer wall and the plurality of lower chord beams.
Preferably, the basement outer wall, the upper chord beam and the first connecting beam are integrally cast.
Preferably, the basement outer wall, the lower chord beam and the second connecting beam are integrally cast.
Preferably, the upper chord beam is horizontally arranged and is vertical to the outer wall of the basement.
Preferably, the horizontal segment is used as a lower basement floor support beam.
Preferably, the upper chord beam is a high-level basement floor beam.
Compared with the prior art, the technical scheme of the application has the following beneficial technical effects:
1. according to the method, the upper chord beam and the lower chord beam are arranged, the upper chord beam, the basement outer wall and the lower chord beam form an integral hollow truss, connection between a high-level basement foundation and a low-level basement foundation is achieved, the upper chord beam is connected with vertical members on the high-level basement foundation and the low-level basement foundation, the lower chord beam is connected with the high-level basement foundation and the low-level basement foundation, the upper chord beam and the lower chord beam serve as conversion beams to conduct stress to the high-level basement foundation and the low-level basement foundation, so that the upper chord beam and the lower chord beam can play a supporting role on the basement outer wall to bear forward load of the basement outer wall and reverse load of water buoyancy, the workload and construction cost of pile foundation and bearing platform construction can be reduced, foundation excavation and supporting range reduction are reduced, extra excavation amount and supporting amount are reduced, and overall manufacturing cost is reduced; the upper chord beam and the lower chord beam can strengthen mutual constraint of the foundations at two sides in the horizontal direction, and form good horizontal support for the foundations at two sides; the foundation at the junction of the basements of different layers is connected through the integral hollow truss to form a whole, and the whole stress and the whole settlement of the structure at the junction and the peripheral foundation are avoided, so that the uneven settlement of the whole structure is avoided;
2. according to the method, the first connecting beam is connected with the basement outer wall and the upper chord beam to form a whole, the second connecting beam is connected with the basement outer wall and the lower chord beam to form a whole, the integral strength of foundation structure-free structure at the junction of the basements of different layers is enhanced, and the connection strength of foundation at the junction of the basements of different layers is improved;
3. the upper chord beam can be used as the floor beam of the high-level basement, and the horizontal section of the lower chord beam can be used as the bottom plate supporting beam of the low-level basement, namely, the structure of the building block can furthest utilize the existing structural members, and the manufacturing cost is further reduced.
Drawings
FIG. 1 is a schematic diagram of a foundation-less structure at a junction of basements of different floors according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of an upper bridge and a basement exterior wall in a foundation-less structure at the junction of basements of different floors provided by an embodiment of the present invention;
fig. 3 is a schematic diagram of a lower chord beam and a basement exterior wall in a foundation-less structure at a junction of basements of different floors according to an embodiment of the present invention.
In the drawings, the list of components represented by the various numbers is as follows:
1. a high-level basement foundation; 2. a low-level basement foundation; 3. a basement exterior wall; 4. a top chord beam; 5. a lower chord beam; 51. a horizontal section; 52. a connection section; 6. a first connecting beam; 7. a second connection beam; 8. a vertical member.
Detailed Description
In order to facilitate an understanding of the present application, a more complete description of the present application will now be provided with reference to the relevant figures. Examples of the present application are given in the accompanying drawings. This application may, however, be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
It will be understood that spatially relative terms, such as "under", "below", "beneath", "under", "above", "over" and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use and operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements or features described as "under" or "beneath" other elements would then be oriented "on" the other elements or features. Thus, the exemplary terms "below" and "under" may include both an upper and a lower orientation. Furthermore, the device may also include an additional orientation (e.g., rotated 90 degrees or other orientations) and the spatial descriptors used herein interpreted accordingly.
It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or be connected to the other element through intervening elements. In the following embodiments, "connected" is understood to mean "electrically connected", "communicatively connected", and the like, if the connected circuits, modules, units, and the like have electrical or data transferred therebetween.
As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," and/or the like, specify the presence of stated features, integers, steps, operations, elements, components, or groups thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or groups thereof.
Referring to fig. 1-3, an embodiment of the present application provides a foundation-free structure at a junction of basements of different floors, which includes a basement outer wall 3, an upper chord beam 4 and a lower chord beam 5, wherein the basement outer wall 3 is arranged between a high-level basement foundation 1 and a low-level basement foundation 2, the upper chord beam 4 is arranged above the basement outer wall 3 and is connected with the basement outer wall 3, one end of the upper chord beam 4 is connected with the high-level basement foundation 1, the other end is connected with a vertical member 8 on the low-level basement foundation 2, and the upper chord beam 4 is provided with a plurality of vertical members and is arranged at intervals along the length direction of the basement outer wall 3; the lower chord beam 5 is arranged below the basement outer wall 3 and connected with the basement outer wall 3, two ends of the lower chord beam 5 are respectively connected with the high-level basement foundation 1 and the low-level basement foundation 2, and the lower chord beam 5 is provided with a plurality of lower chord beams and is arranged at intervals along the length direction of the basement outer wall 3.
Specifically, the upper chord beams 4, the lower chord beams 5 and the basement outer wall 3 are connected to form an integral hollow truss, the basement outer wall 3 is used as a web wall of the hollow truss, the hollow truss is connected with the high-level basement foundation 1 and the low-level basement foundation 2 to transmit stress to the high-level basement foundation 1 and the low-level basement foundation 2, and can bear forward load of the basement outer wall 3 and reverse load of water buoyancy, so that the workload and construction cost of pile foundation and bearing platform construction are reduced, the foundation excavation and support range is reduced, the additional excavation amount and support amount are reduced, and the overall cost is reduced; the upper chord beam 4 and the lower chord beam 5 can strengthen mutual constraint of the foundations at two sides in the horizontal direction, and form good horizontal support for the foundations at two sides; the foundation at the junction of the basements of different layers is connected into a whole through the integral hollow truss, and the structure at the junction is integrally stressed and integrally settled with the surrounding foundation, so that the independent settlement of the structure at the junction is avoided, and the uneven settlement of the whole structure is avoided.
As shown in fig. 1 and 2, further, the upper bridge 4 should meet the frame beam construction requirement of the corresponding basement floor, the upper bridge 4 is a floor beam of the high-level basement, that is, the floor beam of the high-level basement with the existing design is adopted as the upper bridge 4, so that the structural member with the existing design is utilized to the maximum extent, the manufacturing cost is further reduced, the corresponding upper bridge 4 is horizontally arranged, and in this embodiment, the upper bridge 4 is vertical to the basement outer wall 3. Specifically, the vertical members 8 on the low-level basement foundation 2 may be columns or shear walls, and in this embodiment, the vertical members 8 are used as structural columns for illustration, and the upper bridge 4 may conduct the reverse load of the basement outer wall 3 to the vertical members 8 on the high-level basement foundation 1 and the low-level basement foundation 2, so that the reverse load of the basement outer wall 3 may be carried by the upper bridge 4.
As shown in fig. 1 and 3, further, the lower bridge 5 includes a horizontal section 51 disposed between the basement exterior wall 3 and the low basement foundation 2, and the horizontal section 51 is located below the basement exterior wall 3 and connected to the basement exterior wall 3 and the low basement foundation 2; specifically, since there is a height difference between the high-level basement foundation 1 and the low-level basement foundation 2, the lower bridge 5 is a folded bridge, which is formed by a horizontal section 51 and a connecting section 52 connecting the horizontal section 51 and the high-level basement foundation 1, the horizontal section 51 is arranged between the basement exterior wall 3 and the low-level basement foundation 2, one end of the horizontal section 51 is connected with the low-level basement foundation 2, the other end is connected with the connecting section 52, the connecting section 52 is arranged obliquely between the basement exterior wall 3 and the high-level basement foundation 1, one end of the connecting section 52 is connected with the horizontal section 51, the other end is connected with the high-level basement foundation 1, and the lower bridge 5 can conduct forward load of the basement exterior wall 3 to the high-level basement foundation 1 and the low-level basement foundation 2, so that forward load of the basement exterior wall 3 can be borne by the lower bridge 5.
Further, the lower chord beam 5 should meet the frame beam construction requirement corresponding to the basement floor, in this embodiment, the horizontal section 51 of the lower chord beam 5 is perpendicular to the basement outer wall 3, and the horizontal section 51 can be used as a bottom plate support beam of the low-level basement to reduce the overall construction cost of the building.
Referring to fig. 1, a first connecting beam 6 is further arranged at the top of the basement outer wall 3, the first connecting beam 6 is arranged along the length direction of the basement outer wall 3, and the first connecting beam 6 is connected with the basement outer wall 3 and a plurality of upper chord beams 4; specifically, the first connecting beam 6 is constructed according to the hidden beam of the basement outer wall 3, the beam width is consistent with the wall thickness of the basement outer wall 3, the beam height is twice the wall thickness, and reinforcing bars are constructed according to design requirements; in this embodiment, the beam height of the first connecting beam 6 is consistent with the beam height of the upper chord beam 4, the first connecting beam 6 and the top of the upper chord beam 4 are integrally cast and formed, the beam bottom and the beam top mark height are consistent, the basement outer wall 3, the first connecting beam 6 and the top of the upper chord beam 4 are integrally cast and formed, and the overall strength of the basement outer wall 3, the first connecting beam 6 and the upper chord beam 4 is improved.
Referring to fig. 1, a second connecting beam 7 is further arranged at the bottom of the basement outer wall 3, the second connecting beam 7 is arranged along the length direction of the basement outer wall 3, and the second connecting beam 7 is connected with the basement outer wall 3 and a plurality of lower chord beams 5; specifically, the second connecting beam 7 is connected to the horizontal section 51 of the lower bridge 5, and the configuration of the second connecting beam 7 is determined according to the design requirements, which can be referred to as the design requirements of the conversion beam. The beam height of the second connecting beam 7 is consistent with the beam height of the horizontal section 51, the elevation of the beam top and the beam bottom is consistent, the second connecting beam 7, the lower chord beam 5 and the basement outer wall 3 are integrally cast and formed, and the integral strength of the hollow truss is improved.
Specifically, the parameters such as the section of each component, reinforcement and the like are calculated and determined according to the design requirements, the forward gravity load and the reverse water buoyancy load are considered during calculation, the side soil pressure is required to be checked for the basement outer wall 3, the construction requirements of the basement outer wall 3 are met, the upper chord beam 4 and the lower chord beam 5 are contacted with soil, and the construction requirements still meet the requirements of the foundation beam.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.
Claims (10)
1. A foundation-less structure at the junction of basements of different floors, comprising;
a basement exterior wall (3) located between the high-level basement foundation (1) and the low-level basement foundation (2);
the upper chord beams (4) are arranged above the basement outer wall (3) and connected with the basement outer wall (3), one end of each upper chord beam (4) is connected with the high-level basement foundation (1), the other end of each upper chord beam is connected with the vertical component (8) on the low-level basement foundation (2), and the upper chord beams (4) are arranged at intervals along the length direction of the basement outer wall (3);
the underground structure comprises a plurality of lower chord beams (5), wherein the lower chord beams (5) are arranged below the basement outer wall (3) and are connected with the basement outer wall (3), two ends of each lower chord beam (5) are respectively connected with a high-position basement foundation (1) and a low-position basement foundation (2), and the lower chord beams (5) are arranged at intervals along the length direction of the basement outer wall (3).
2. The differential layer basement junction infrastructure-free construction of claim 1, wherein: the lower chord beam (5) comprises a horizontal section (51) arranged between the basement outer wall (3) and the low-level basement foundation (2), and the horizontal section (51) is positioned below the basement outer wall (3) and connected with the basement outer wall (3) and the low-level basement foundation (2).
3. The differential layer basement junction infrastructure-free construction of claim 1, wherein: the top of the basement outer wall (3) is provided with a first connecting beam (6), the first connecting beam (6) is arranged along the length direction of the basement outer wall (3), and the first connecting beam (6) is connected with the basement outer wall (3) and a plurality of upper chord beams (4).
4. A basement junction infrastructure-free construction of different floors according to claim 3, characterized in that: the beam width of the first connecting beam (6) is consistent with the thickness of the basement outer wall (3), and the thickness of the first connecting beam (6) Liang Hou) is consistent with the thickness of the upper chord beam (4).
5. The differential layer basement junction infrastructure-free construction of claim 1, wherein: the basement outer wall (3) bottom is equipped with second tie-beam (7), second tie-beam (7) are followed basement outer wall (3) length direction arranges, second tie-beam (7) connect basement outer wall (3) and a plurality of string roof beam (5) down.
6. The differential layer basement junction infrastructure-free construction of claim 4, wherein: the basement outer wall (3), the upper chord beam (4) and the first connecting beam (6) are integrally cast and formed.
7. The differential layer basement junction infrastructure-free construction of claim 1, wherein: the basement outer wall (3), the lower chord beam (5) and the second connecting beam (7) are integrally cast and formed.
8. The differential layer basement junction infrastructure-free construction of claim 1, wherein: the upper chord beam (4) is horizontally arranged and is perpendicular to the basement outer wall (3).
9. The differential layer basement junction infrastructure-free construction of claim 2, wherein: the horizontal segment (51) serves as a lower basement floor support beam.
10. The differential layer basement junction infrastructure-free construction of claim 1, wherein: the upper chord beam (4) is a floor beam of a high-level basement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311490538.0A CN117513396B (en) | 2023-11-08 | 2023-11-08 | Foundation-free structure at junction of basements of different layers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311490538.0A CN117513396B (en) | 2023-11-08 | 2023-11-08 | Foundation-free structure at junction of basements of different layers |
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| CN117513396A true CN117513396A (en) | 2024-02-06 |
| CN117513396B CN117513396B (en) | 2024-06-11 |
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| CN117513396B (en) | 2024-06-11 |
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