CN115596000B - Precast raft foundation components, prefabricated raft foundations, and houses - Google Patents
Precast raft foundation components, prefabricated raft foundations, and housesInfo
- Publication number
- CN115596000B CN115596000B CN202211306248.1A CN202211306248A CN115596000B CN 115596000 B CN115596000 B CN 115596000B CN 202211306248 A CN202211306248 A CN 202211306248A CN 115596000 B CN115596000 B CN 115596000B
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- CN
- China
- Prior art keywords
- raft foundation
- prefabricated
- bottom plate
- cross beam
- square bottom
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/01—Flat foundations
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/01—Flat foundations
- E02D27/016—Flat foundations made mainly from prefabricated concrete elements
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- Engineering & Computer Science (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)
- Structural Engineering (AREA)
- Foundations (AREA)
Abstract
The invention relates to a prefabricated raft foundation component, which comprises a prefabricated square bottom plate and a cross beam prefabricated on the square bottom plate, wherein four end parts of the cross beam extend to four edge parts of the square bottom plate respectively, the four end parts of the cross beam extend to form flange plates, the plate surfaces of the flange plates are parallel to the bottom plate edge parts on the corresponding sides, and bolt assembly holes and/or pre-embedded assembly bolts are arranged on the flange plates. The invention further relates to an assembled raft foundation using the prefabricated raft foundation member and a house using the assembled raft foundation. The invention can realize the assembled construction of the raft foundation, can obviously shorten the construction period and the construction cost, can be used as a standard component for prefabricating production, transportation, storage and field installation, adopts a bolt assembly structure to realize the splicing of two adjacent raft foundation components, has high reliability and stability of the connection structure, and can ensure the service effect of the raft foundation.
Description
Technical Field
The present invention relates to a prefabricated raft foundation member, an assembled raft foundation employing the same, and a house employing the assembled raft foundation.
Background
At present, research on precast concrete components such as precast beams, precast slabs, precast columns and the like is increasingly increased, but for prefabricated components of an assembled foundation, related engineering application and research are fewer, and the part of construction period is long, the difficulty of assembly technology is high, and the industrial development of buildings is greatly restricted. The raft foundation is one of common types in the building substructure, needs to bear the whole weight of the superstructure, generally adopts cast-in-place concrete construction operation, and comprises the steps of erecting templates, binding reinforcing steel bars, concrete pouring, post-curing and the like, and has the problems of long construction period and the like.
Disclosure of Invention
The present invention relates to a prefabricated raft foundation component, an assembled raft foundation using the same and a house using the same, which at least solve part of the drawbacks of the prior art.
The invention relates to a prefabricated raft foundation component, which comprises a prefabricated square bottom plate and a cross beam prefabricated on the square bottom plate, wherein four end parts of the cross beam extend to four edge parts of the square bottom plate respectively, the four end parts of the cross beam extend to form flange plates, the plate surfaces of the flange plates are parallel to the bottom plate edge parts on the corresponding sides, and bolt assembly holes and/or pre-embedded assembly bolts are arranged on the flange plates.
As one implementation mode, the periphery of the square bottom plate extends upwards to form an eave wall, and bolt assembly holes and/or pre-embedded assembly bolts are formed in the eave wall.
As one embodiment, the outer wall surface of the eave wall is coplanar with the outer plate surface of the flange plate on the corresponding side.
As one embodiment, at least part of the beam sections of the cross beam are hollow beams.
As one embodiment, the hollow cavity of the hollow beam penetrates through the top surface of the beam body and/or the end surface of the beam body.
As one of implementation modes, the outer side beam wall of the hollow beam is provided with stiffening ribs, and the bottom ends of the stiffening ribs are connected with the square bottom plate.
As one of the embodiments, the flange plate, the cross beam and the square bottom plate are integrally formed.
The invention also relates to an assembled raft foundation, which is formed by assembling a plurality of prefabricated raft foundation components, wherein the flange plates between two adjacent prefabricated raft foundation components are mutually abutted and are in bolt assembling connection.
As one of the implementation modes, at least part of beam sections of the cross beam are hollow beams, and the hollow cavities of the hollow beams are filled with cast-in-place concrete.
The invention also relates to a house comprising a raft foundation, which adopts the above-mentioned assembled raft foundation, and an upper structure, which is carried on the assembled raft foundation.
The invention has the advantages that the square bottom plate and the cross beam combined structure is adopted, the flange plates are formed at the four end parts of the cross beam in an extending way, the assembly parts (bolt assembly holes and/or assembly bolts) on the flange plates are used for realizing the splicing between two adjacent raft foundation components, the assembly construction of the raft foundation can be realized, the construction period and the construction cost can be obviously shortened, the prefabricated raft foundation components can be used as standard components, the prefabricated production, the transportation, the storage and the field installation are convenient, the construction cost can be greatly reduced, the bolt assembly structure is used for realizing the splicing between the two adjacent raft foundation components, the reliability and the stability of the connecting structure are high, the service effect of the raft foundation can be ensured, the flange plates can play the role of stiffening rib plates besides the assembly construction, and the working reliability of the cross beam is effectively improved.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1-6 are schematic structural views of a prefabricated raft foundation member provided by an embodiment of the invention, wherein fig. 1-5 are raft foundation members adopting square floors, and fig. 6 is raft foundation member adopting rectangular floors;
fig. 7 is a schematic view of the structure of a raft foundation provided by an embodiment of the invention;
fig. 8 and 9 are schematic views of a connection structure between a raft foundation and prefabricated wall panels according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
As shown in fig. 1 to 6, an embodiment of the present invention provides a prefabricated raft foundation member 1, which includes a prefabricated square base plate 11 and a cross beam 12 prefabricated on the square base plate 11, four ends of the cross beam 12 extend to four edges of the square base plate 11 respectively, four ends of the cross beam 12 extend to form a flange plate 13, a plate surface of the flange plate 13 is parallel to a base plate edge on a corresponding side, and bolt assembly holes 15 and/or pre-embedded assembly bolts are provided on the flange plate 13.
The square soleplate 11 and the cross beam 12 are preferably reinforced concrete members, are preferably integrally prefabricated and formed, and further preferably, the flange plate 13, the cross beam 12 and the square soleplate 11 are integrally formed, so that the structural integrity and the stress performance of the raft foundation member 1 can be improved, and the reliability of the splicing structure between the raft foundation members 1 can be ensured. The square bottom plate 11 may be a square bottom plate 11 or a rectangular bottom plate 11.
As shown in fig. 2, the square floor 11 is preferably provided with air vents 18 to facilitate mounting the raft foundation member 1 to a foundation mat. In another alternative embodiment, a plurality of mounting bolts can be pre-buried on the foundation mat layer, a plurality of bolt penetrating holes are formed in the square bottom plate 11, the mounting bolts penetrate into the bolt penetrating holes in the square bottom plate 11 and are locked through nuts, the raft foundation 2 can be fixed on the foundation mat layer, the working reliability of the raft foundation 2 is further improved, and the bolt penetrating holes can play a role in exhausting air.
The cross beam 12 comprises four beam sections, the ends of which extend to four edges of the square bottom plate 11 respectively, wherein the length direction of each beam section is perpendicular to the edges of the corresponding square bottom plate 11, and the outer plate surfaces of the flange plates 13 of the beam sections are preferably coplanar with the edges of the bottom plate on the corresponding sides.
Preferably, each end of the cross beam 12 is extended with a flange plate 13 to both lateral sides, respectively, which may improve stability and reliability of the assembled structure between the raft foundation members 1.
When the assembling portion provided on the flange plate 13 is an assembling bolt, correspondingly, the assembling portion on the other raft foundation member 1 spliced with the flange plate 13 needs to be a bolt assembling hole 15, and then two opposite ends of each cross beam 12 may be provided, wherein the assembling portion on the flange plate 13 at one end is an assembling bolt, and the assembling portion on the flange plate 13 at the other end is a bolt assembling hole 15.
In this embodiment, as shown in fig. 1 to 6, a plurality of bolt assembly holes 15 are provided on the flange plates 13, after the two raft foundation members 1 are spliced, bolts are adopted to pass through the bolt assembly holes 15 on the flange plates 13 of the two raft foundation members 1 on site, and then nuts are adopted to lock. Especially, when the square base plate 11 is the square base plate 11, and the flange plates 13 at each end of the cross beam 12 adopt the bolt assembly holes 15 as the assembly parts and the distribution forms of the assembly parts are the same, the raft foundation member 1 is used as a standard component, and any end can be spliced with another raft foundation member 1, so that the assembly flexibility is high, the assembly difficulty can be remarkably reduced, and the assembly construction efficiency can be improved.
Further preferably, as shown in fig. 1 to 7, the periphery of the square bottom plate 11 extends upward to form an eave wall 14, and bolt assembling holes 15 and/or assembling bolts are provided on the eave wall 14. Similarly, it is preferable to use a plurality of bolt fitting holes 15 as fitting portions in the eave wall 14. Based on the above structure, the eave wall 14 is mainly used for the assembly connection between the square bottom plates 11, and the flange plate 13 is mainly used for the assembly connection between the cross beams 12, so that the assembly structure integrity and the connection structure strength between the two prefabricated raft foundation members 1 can be improved, and the cooperative stress between the cross beams 12 and the square bottom plates 11 is better.
Preferably, the outer wall surface of the eave wall 14 is coplanar with the outer plate surface of the flange plate 13 on the corresponding side.
The prefabricated raft foundation member 1 provided by the embodiment adopts a combined structure of the square bottom plate 11 and the cross beam 12, the four ends of the cross beam 12 are respectively extended to form the flange plates 13, the assembly parts (the bolt assembly holes 15 and/or the assembly bolts) on the flange plates 13 are used for realizing the splicing between the two adjacent raft foundation members 1, the assembly construction of the raft foundation 2 can be realized, the construction period and the construction cost can be obviously shortened, the prefabricated raft foundation member 1 can be used as a standard component, the prefabricated production, the transportation, the storage and the field installation are convenient, the construction cost can be greatly reduced, the bolt assembly structure is used for realizing the splicing between the two adjacent raft foundation members 1, the reliability and the stability of the connecting structure are high, the service effect of the raft foundation 2 can be ensured, the flange plates 13 can play the role of stiffening rib plates besides realizing the assembly construction, and the working reliability of the cross beam 12 can be effectively improved.
Further optimizing the structure of the above mentioned raft foundation member 1, at least part of the beam sections of the cross beam 12 being hollow beams, the weight of the raft foundation member 1 can be reduced. After the assembled construction of the raft foundation 2 is completed, concrete is cast in place into the hollow cavity 16 of the hollow beam, so that the structural performance of the cross beam 12 can be ensured. The top surface of the hollow beam may be a closed top surface, and a pouring hole may be formed in the top surface of the hollow beam so as to pour concrete into the hollow cavity 16, and in this scheme, reinforcing steel bars may be pre-embedded in the hollow cavity 16.
In other embodiments, as shown in fig. 2-5, the hollow cavity 16 of the hollow beam penetrates through the top surface of the beam body and/or the end surface of the beam body, wherein the hollow cavity 16 is preferably designed to penetrate through at least the top surface of the beam body, so that the operations such as installing reinforcing steel bars and pouring concrete at a later stage can be facilitated (of course, the reinforcing steel bars can be pre-embedded on the groove walls of the hollow cavity 16 in the prefabrication production process), when the hollow cavity 16 penetrates through the end surface of the beam body, the hollow cavities 16 of the raft foundation members 1 in the raft foundation 2 are communicated with each other, after the concrete is cast in place, the structural integrity and the cooperative stress of the raft foundation members 1 can be remarkably improved, and thus the service effect of the raft foundation 2 can be improved, and it can be appreciated that the pouring holes can also be formed on the end surface of the beam body so that the hollow cavities 16 are communicated with each other.
Further, as shown in fig. 2, the outer side beam wall of the hollow beam is provided with a stiffening rib 17, and the bottom end of the stiffening rib 17 is connected with the square bottom plate 11, so that the problem of the reduced structural strength of the hollow beam caused by hollowness can be compensated.
Example two
As shown in fig. 7, an embodiment of the present invention provides a fabricated raft foundation 2, which is formed by assembling a plurality of prefabricated raft foundation members 1 provided in the first embodiment, wherein the flange plates 13 between two adjacent prefabricated raft foundation members 1 abut against each other and are connected by bolting.
As mentioned above, when at least part of the beam sections of the cross beam 12 are hollow beams, the hollow cavity 16 of said hollow beams is filled with cast-in-place concrete.
Further, the hollow cavities 16 of the cross beams 12 are communicated with each other, cast-in-place concrete in the cross beams 12 is poured synchronously, and the prefabricated raft foundation components 1 can be connected into a whole, so that the structural integrity and stress performance of the raft foundation 2 are improved.
Example III
The embodiment of the invention provides a house comprising a raft foundation 2 and an upper structure, wherein the raft foundation 2 adopts the assembled raft foundation 2 provided by the second embodiment, and the upper structure is borne on the assembled raft foundation 2.
The upper structure can be a wall body, and the wall body can be a cast-in-situ wall body or an assembled wall body.
For the cast-in-situ upper wall, reinforcing steel bars can be embedded or later planted at the top of each cross beam 12 and are lapped with the reinforcing steel bars of the wall, and then the wall is formed by formwork casting.
As shown in fig. 8 and 9, for the assembled wall, the bolts 4 or the post-planting bolts 4 can be pre-embedded at the top of each cross beam 12, the prefabricated wall panel 3 is supported on the top bolts 4 of the cross beams 12 (the wall leveling operation can be completed at the same time), and the vertical gap between the two is filled with cast-in-place concrete.
For the case that at least part of the beam sections of the cross beam 12 are hollow beams, especially for the case that the hollow cavity 16 penetrates through the top surface of the beam body, when the beam body reinforcing steel bars are arranged in the hollow cavity 16, the wall reinforcing steel bars of the upper wall body can be overlapped with the beam body reinforcing steel bars, then the formwork is used for synchronously completing the concrete pouring operation of the upper wall body and the hollow cavity 16, or the top bolts 4 are bound and fixed on the beam body reinforcing steel bars, and after the prefabricated wallboard 3 is connected on the top bolts 4, the formwork is used for synchronously completing the gap between the wallboard 3 and the cross beam 12 and the concrete pouring operation of the hollow cavity 16. The scheme can further improve the structural integrity and the cooperative stress between the wall body and the cross beam 12, and can effectively improve the structural performance and the use safety of the house.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (5)
1. A house comprises a raft foundation and an upper structure, and is characterized in that the raft foundation adopts an assembled raft foundation which is formed by assembling a plurality of prefabricated raft foundation components,
The prefabricated raft foundation component comprises a prefabricated square bottom plate and a cross beam prefabricated on the square bottom plate, four end parts of the cross beam extend to four edge parts of the square bottom plate respectively, four end parts of the cross beam extend to form flange plates, the plate surfaces of the flange plates are parallel to the bottom plate edge parts on the corresponding sides, and bolt assembly holes and/or pre-embedded assembly bolts are arranged on the flange plates;
the flange plates between two adjacent prefabricated raft foundation components are mutually abutted and are connected through bolts in an assembling mode;
The upper structure is an assembled wall body and is borne on the assembled raft foundation;
At least part of beam sections of the cross beam are hollow beams, hollow cavities of the hollow beams penetrate through the top surface of a beam body and the end surface of the beam body, hollow cavities of various raft foundation components in the raft foundation are mutually communicated, beam body reinforcing steel bars are arranged in the hollow cavities, top bolts are bound and fixed on the beam body reinforcing steel bars, prefabricated wallboards are connected to the top bolts, and then formwork supporting is carried out synchronously to complete the gap between the prefabricated wallboards and the cross beam and the concrete pouring operation of the hollow cavities.
2. The house of claim 1, wherein the periphery of the square bottom plate extends upwards to form an eave wall, and bolt assembling holes and/or assembling bolts are/is embedded in the eave wall.
3. The building of claim 2 wherein the exterior wall surfaces of said eave wall are coplanar with the exterior panel surfaces of the flange panels on the respective sides.
4. The house of claim 1, wherein the outer side beam walls of the hollow beams are provided with stiffening ribs, and the bottom ends of the stiffening ribs are connected with the square bottom plate.
5. The house of claim 1, wherein the flange plate, the cross beam and the square bottom plate are integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211306248.1A CN115596000B (en) | 2022-10-25 | 2022-10-25 | Precast raft foundation components, prefabricated raft foundations, and houses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211306248.1A CN115596000B (en) | 2022-10-25 | 2022-10-25 | Precast raft foundation components, prefabricated raft foundations, and houses |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115596000A CN115596000A (en) | 2023-01-13 |
| CN115596000B true CN115596000B (en) | 2026-04-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211306248.1A Active CN115596000B (en) | 2022-10-25 | 2022-10-25 | Precast raft foundation components, prefabricated raft foundations, and houses |
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| Country | Link |
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| CN (1) | CN115596000B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116290057A (en) * | 2023-02-27 | 2023-06-23 | 国网湖北省电力有限公司经济技术研究院 | A kind of raft, beam-slab raft and beam-slab raft assembly foundation |
| CN118128085B (en) * | 2024-04-24 | 2025-03-04 | 湖北省电力规划设计研究院有限公司 | An assembled foundation |
| CN118087596B (en) * | 2024-04-24 | 2025-03-04 | 湖北省电力规划设计研究院有限公司 | An assembled shrinkage foundation |
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| CN114197511A (en) * | 2021-12-21 | 2022-03-18 | 中铁建设集团有限公司 | Novel assembly type steel reinforced concrete light foundation and assembly method thereof |
| WO2022083020A1 (en) * | 2020-10-19 | 2022-04-28 | 青岛理工大学 | Wood frame construction system having high energy dissipation |
| CN218405516U (en) * | 2022-10-25 | 2023-01-31 | 武汉理工大学三亚科教创新园 | Prefabricated raft-shaped foundation component, assembled raft-shaped foundation and house |
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2022
- 2022-10-25 CN CN202211306248.1A patent/CN115596000B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203113366U (en) * | 2013-01-17 | 2013-08-07 | 杨众 | Three-side free-standing column advertising board assembling-type foundation |
| CN108729542A (en) * | 2018-07-18 | 2018-11-02 | 北京玖新创世科技有限公司 | A kind of prefabrication main body and construction method |
| CN111287206A (en) * | 2020-03-26 | 2020-06-16 | 常州工程职业技术学院 | Assembly type concrete strip foundation module system and construction method |
| WO2022083020A1 (en) * | 2020-10-19 | 2022-04-28 | 青岛理工大学 | Wood frame construction system having high energy dissipation |
| CN114197511A (en) * | 2021-12-21 | 2022-03-18 | 中铁建设集团有限公司 | Novel assembly type steel reinforced concrete light foundation and assembly method thereof |
| CN218405516U (en) * | 2022-10-25 | 2023-01-31 | 武汉理工大学三亚科教创新园 | Prefabricated raft-shaped foundation component, assembled raft-shaped foundation and house |
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| CN115596000A (en) | 2023-01-13 |
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