Light assembly type combined foundation structure series

Abstract

The invention discloses a light assembly type combined foundation structure series, which is a post-cast reinforced concrete combined foundation structure series with a built-in high-strength framework formed according to different foundation structures acting on different foundations, and the core components of the structure system comprise a foundation prefabricated framework, foundation prefabricated steel bars, a prefabricated foundation laminated slab and cast-in-place reinforced concrete; the foundation structure comprises a beam type foundation, a plate type foundation and a beam and plate combined type foundation, and the foundation comprises a pile foundation, a natural foundation and a pile-soil composite foundation. Firstly, foundation types are determined according to different foundations, then standardized prefabricated foundation frameworks and prefabricated foundation steel bars are selected and matched, after reinforcement design is conducted through cast-in-place reinforced concrete, the prefabricated foundation frameworks and the prefabricated foundation steel bars are assembled and poured together, and the combined foundation structure capable of meeting the structure bearing capacity requirement before combination and after combination is formed.

Description

Technical Field

[0001] The invention belongs to the field of reinforced concrete structures, in particular to a series of light assembled composite foundation structures. Background Art

[0002] With the advancement of material technology, how to safely and efficiently apply high-strength materials in reinforced concrete structures has always been a difficult problem. For example, high-strength concrete (such as HPC, UHPC) and high-strength cement have high construction and maintenance requirements and are not suitable for cast-in-place. High-strength steel bars (such as T63) use ordinary casting methods and have low tensile strength utilization. If the tensile utilization rate is high, concrete is prone to cracking, and prestressed technology is required. However, the cost of large-scale cast-in-place concrete is too high and it is not applicable. The use of the technology of the "Light Assembled Composite Foundation Structure Series" can solve the above problems. High-strength materials are prefabricated in the factory and then cast-in-place in combination with ordinary reinforced concrete. The high-strength steel bars are naturally tensioned without tensioning equipment, which improves the utilization rate of the tensile strength of the high-strength steel bars. Even if cracks occur in the prefabricated components, they will be filled and covered by the later poured concrete to form a crack-free prestressed composite structure.

[0003] For a long time, prefabricated building foundations have had problems such as heavy prefabricated components, difficult lifting and transportation, multiple specifications, difficult combination, and difficulty in standardization. Therefore, a series of lightweight prefabricated composite foundation structures were proposed. Summary of the invention

[0004] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0005] In view of the following technical problems in the prior art: the foundation of prefabricated buildings has long had problems such as heavy prefabricated components, difficult lifting and transportation, multiple specifications, difficult combination, and difficulty in standardization.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a series of post-cast reinforced concrete composite foundation structures with built-in high-strength skeletons formed according to different foundation structures acting on different foundations, the core components of the structural system include: prefabricated foundation skeletons, prefabricated foundation steel bars, prefabricated foundation composite slabs and cast-in-place reinforced concrete;

[0007] The foundation structure includes beam foundation, slab foundation and beam-slab combined foundation, and the foundation includes pile foundation, natural foundation and pile-soil composite foundation;

[0008] The upper part of the prefabricated foundation frame is provided with a prefabricated upper structure frame, and the outer side of the prefabricated upper structure frame is covered with a prefabricated upper structure steel cage and prefabricated additional steel bars;

[0009] A prefabricated foundation foot frame is arranged at the lower part of the prefabricated foundation frame. When a plate-type foundation structure is adopted, a prefabricated steel mesh of the foundation plate or a prefabricated foundation composite plate is arranged at the lower side of the prefabricated foundation foot frame. When a beam-type foundation structure is adopted, a prefabricated steel cage of the foundation beam and a prefabricated foundation steel member are sleeved at the outer side of the prefabricated foundation frame. When a beam-slab combined foundation structure is adopted, a prefabricated steel cage of the foundation beam and a prefabricated foundation steel member are sleeved at the outer side of the prefabricated foundation frame, and a prefabricated steel mesh of the axilla foundation plate is arranged at the lower side.

[0010] The prefabricated foundation frame composed of the superstructure prefabricated frame and the foundation foot frame is a streamlined structure embedded in the cast-in-place reinforced concrete and made of higher-strength materials. It can bear the load of the construction phase before the pouring of the cast-in-place reinforced concrete, and can bear the load of the use phase after the pouring of the cast-in-place reinforced concrete.

[0011] As the preferred technical solution for the series of lightweight assembled composite foundation structures, the prefabricated foundation steel bars include the prefabricated steel cage for foundation beams used in beam-type foundations, the prefabricated steel mesh for foundation plates used in slab-type foundations, the prefabricated steel cage for beams and the prefabricated steel mesh for foundation plates used in beam-slab combined foundations, as well as the prefabricated steel cage for superstructures and the prefabricated additional steel bars for superstructures.

[0012] As the preferred technical solution for the series of light-weight assembled composite foundation structures, the prefabricated foundation composite slab is applied to the plate-type foundation structure and the beam-slab combined foundation structure;

[0013] It is placed on the lower side of the foundation foot frame and connected to the prefabricated foundation composite plate through the limiting support device on the prefabricated foundation frame.

[0014] As the preferred technical solution for the series of lightweight assembled composite foundation structures, the cast-in-place reinforced concrete is formed by bonding the prefabricated foundation frame, prefabricated foundation steel bars and prefabricated foundation composite slabs with ordinary reinforced concrete to form a composite structure, thereby improving the bearing capacity of the composite foundation structure during the use stage.

[0015] As a preferred technical solution for a series of light-weight assembled composite foundation structures, the prefabricated skeleton portion of the foundation frame is sleeved with a prefabricated foundation beam reinforcement cage, and four prefabricated foundation reinforcement members are evenly distributed on the lower side of the prefabricated foundation beam reinforcement cage. The foundation frame, prefabricated foundation reinforcement members and prefabricated foundation beam reinforcement cage constitute a plate-type and beam-type composite foundation structure. The area of ​​the prefabricated foundation reinforcement members of the stepped shallow buried foundation structure is smaller than that of the prefabricated foundation reinforcement members of the beam-type ordinary pile foundation structure. The prefabricated foundation reinforcement members can be manufactured and used instead of the prefabricated foundation reinforcement members.

[0016] As the preferred technical scheme of the light-weight assembled composite foundation structure series, it includes a foundation beam pile foundation composite foundation structure and a plate pile foundation composite foundation structure, the plate type includes a raft or a cap, the foundation beam pile foundation composite structure includes a foundation prefabricated skeleton, a foundation beam prefabricated steel cage, a foundation prefabricated steel member, a support pile and cast-in-place reinforced concrete, the foundation prefabricated skeleton on the lower side of the foundation prefabricated skeleton is sleeved with the foundation beam prefabricated steel cage, a plurality of support piles are arranged at the bottom of the foundation beam prefabricated steel cage, the upper steel bars of the support piles are anchored into the foundation beam pile foundation composite structure, and the foundation beam prefabricated steel cage is provided with a foundation prefabricated steel member;

[0017] The slab pile foundation composite foundation structure includes a prefabricated foundation frame, a prefabricated foundation composite slab or a prefabricated steel mesh of the foundation slab, support piles and cast-in-place reinforced concrete. A plurality of support piles are arranged under the prefabricated foundation composite slab or the prefabricated steel mesh of the foundation slab to support the anchoring of the upper steel bars of the piles into the slab pile foundation composite foundation.

[0018] As the preferred technical scheme of the light-weight assembled composite foundation structure series, it includes a plate-type composite foundation structure and a beam-slab composite foundation structure with a foundation beam combined with axils, the plate-type includes an independent foundation or a raft, the plate-type composite foundation structure includes a foundation prefabricated skeleton, a prefabricated foundation composite slab or a foundation slab prefabricated steel mesh, and cast-in-place reinforced concrete, the foundation prefabricated skeleton is connected to the prefabricated foundation composite slab through a limiting connection device on the foundation prefabricated skeleton or is directly placed on the foundation slab prefabricated steel mesh, and the prefabricated foundation composite slab or the foundation slab prefabricated steel mesh is placed on a natural foundation;

[0019] The beam-slab combined type axilla foundation beam combined foundation structure comprises: a foundation prefabricated frame, a foundation beam prefabricated steel cage, a foundation prefabricated steel bar component, axilla foundation slab prefabricated steel mesh and cast-in-place reinforced concrete, the foundation prefabricated frame on the lower side of the foundation prefabricated frame is sleeved on the outer side of the foundation prefabricated frame, the foundation prefabricated steel bar component is arranged on the foundation prefabricated steel cage, the axilla foundation slab prefabricated steel mesh is arranged under the foundation beam prefabricated steel cage, and the axilla foundation slab prefabricated steel mesh is placed on the natural foundation.

[0020] As the preferred technical scheme of the light assembled composite foundation structure series, it includes a plate-type composite foundation composite foundation structure and a beam-plate composite foundation composite foundation plus axil foundation beam composite foundation structure, the plate type includes a raft plate, the plate-type composite foundation composite foundation structure includes a foundation prefabricated skeleton, a prefabricated foundation composite plate or a foundation plate prefabricated steel mesh, support piles and cast-in-place reinforced concrete, the foundation prefabricated skeleton is connected to the prefabricated foundation composite plate through a limiting connection device on the foundation prefabricated skeleton or is directly placed on the foundation plate prefabricated steel mesh, the prefabricated foundation composite plate or the foundation plate prefabricated steel mesh is placed on the pile-soil composite foundation, the upper steel bars of the support piles are cut off and do not directly contact the prefabricated foundation composite plate or the foundation plate prefabricated steel mesh, and a cushion layer is arranged in the middle;

[0021] The beam-slab composite foundation combined type axilla foundation beam combined foundation structure comprises: a foundation prefabricated frame, a foundation beam prefabricated steel cage, a foundation prefabricated steel bar component, axilla foundation slab prefabricated steel mesh, supporting piles and cast-in-place reinforced concrete, the foundation prefabricated frame on the lower side of the foundation prefabricated frame is sleeved on the outer side of the foundation prefabricated frame, the foundation prefabricated steel cage is provided with a foundation prefabricated steel bar component, axilla foundation slab prefabricated steel mesh is provided under the foundation beam prefabricated steel cage, the axilla foundation slab prefabricated steel mesh is placed on the pile-soil composite foundation, the upper steel bars of the supporting piles are cut off and are not in direct contact with the axilla foundation slab prefabricated steel mesh, and a cushion layer is provided in the middle.

[0022] As a preferred technical solution of the light-assembly combined foundation structure series, the prefabricated foundation skeleton also includes a limit support device, an inclined arm and a post-tensioned prestressed high-strength steel bar. Four limit support devices are evenly distributed around the limit support device. Each of the limit support devices is connected to the limit support device through four post-tensioned prestressed high-strength steel bars. Two inclined arms are arranged on the upper side of each limit support device. Adjacent limit support devices are connected to the prefabricated skeleton of the upper structure through the inclined arms.

[0023] Each limiting support device includes two side plates and a middle plate, and a side plate is respectively arranged on both sides of the middle plate, and the bottom end of the inclined arm is fixedly connected to the upper side of the side plate.

[0024] The beneficial effects of the light-weight assembled composite foundation structure series of the present invention are as follows: various types of prefabricated foundation skeletons, namely light-weight assembled composite foundations, are formed by combining foundation frames, prefabricated foundation reinforcement support piles and prefabricated foundation beam reinforcement cages, and then the final shape can be formed by pouring concrete on site, thereby solving the problems of heavy prefabricated components, difficult hoisting and transportation, multiple specifications, difficult combination and difficult standardization;

[0025] The present invention discloses a variety of light-weight assembled composite foundations with different foundation forms in various scenarios. The foundation is a combination of prefabrication and cast-in-place, which can adopt different structural forms to meet the bearing capacity requirements of each stage according to the external load effects that the building foundation has to bear at different stages. It can realize the lightweight and standardized assembled foundation of prefabricated components. The foundation is mainly composed of high-compression-resistant materials and high-tensile-resistant materials through optimized combination design to form a light-weight assembled composite foundation that can meet the bearing capacity requirements shared by the foundation structure at each stage, including prefabricated skeletons, prefabricated composite slabs and ordinary-strength reinforced concrete for on-site combination and cast-in-place;

[0026] High-compression materials specifically include but are not limited to high-strength concrete and high-strength cement. The optimized combination design includes topological optimization methods. The stage infrastructure such as component manufacturing, transportation, and assembly installation stages are combined into the construction stage; the subsequent stages include the normal use stage and the limit state. The foundation includes a natural foundation, a pile foundation, and a composite foundation;

[0027] A combined prefabricated foundation skeleton is formed by prefabrication and then combination pouring of reinforced concrete, wherein the prefabricated foundation skeleton is a high-strength prefabricated component made of high-strength compression-resistant materials and high-strength steel bars through topological optimization design; the prefabricated foundation steel bar is fixedly connected to the prefabricated foundation skeleton, and the prefabricated foundation beam steel cage includes prefabricated steel bars and prefabricated steel mesh;

[0028] Different foundation types are determined according to different foundations. Prefabricated components including prefabricated foundation skeletons, prefabricated foundation reinforcements and prefabricated reinforcements are targeted for transformation. Various types of combined foundations are formed by pouring reinforced concrete - a series of light assembled combined foundation structures. The technology of the present invention can well solve the problems of heavy prefabricated foundation components, difficult hoisting and transportation, multiple production specifications, inability to combine and adjust, and difficulty in standardization and popularization. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0030] Figure 1 Schematic diagram of the stepped composite pile foundation structure of the present invention Figure 1 ;

[0031] Figure 2 It is a structural schematic diagram of the basic framework of the present invention;

[0032] Figure 3 It is a structural schematic diagram of the prefabricated skeleton of the present invention;

[0033] Figure 4 It is a schematic diagram of the positional relationship between the connecting plate and the square frame of the present invention;

[0034] Figure 5 It is a schematic diagram of the positional relationship between the connecting plate and the oblique arm of the present invention;

[0035] Figure 6 It is a structural schematic diagram of the prefabricated foundation reinforcement member of the present invention;

[0036] Figure 7 It is a structural schematic diagram of the prefabricated column reinforcement cage of the present invention;

[0037] Figure 8 It is a structural schematic diagram of the prefabricated column reinforcement member of the present invention;

[0038] Fig. 9 This is a schematic diagram of a beam-type common pile foundation structure of the present invention;

[0039] Fig.10Schematic diagram of the stepped composite pile foundation structure of the present invention Figure 2 ;

[0040] Fig.11 It is a schematic diagram of the plate-type and beam-type composite foundation structure of the present invention;

[0041] Fig.12 It is a schematic diagram of the conical composite pile foundation structure of the present invention.

[0042] Figure numerals: 1. Prefabricated plate steel mesh; 2. Prefabricated frame; 21. Connecting plate; 211. Side plate; 212. Middle plate; 22. Square frame; 23. Oblique arm; 24. Connecting rod; 3. Prefabricated column steel member; 4. Prefabricated column steel cage; 5. Support pile; 6. Prefabricated foundation beam steel cage; 7. Post-cast reinforced concrete; 8. Prefabricated steel member; 9. Prefabricated additional column steel; 10. Prefabricated foundation slab; 13. Prefabricated steel mesh for added foundation slab. DETAILED DESCRIPTION

[0043] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0044] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0045] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0046] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0047] Examples, such as Figures 1 to 12 As shown, the present invention proposes a series of light-weight assembled composite foundation structures, which is a series of post-cast reinforced concrete composite foundation structures with a built-in high-strength frame formed according to different foundation structures acting on different foundations. The core components of the structural system include: a prefabricated foundation frame 2, prefabricated foundation steel bars, a prefabricated foundation composite plate 10 and cast-in-place reinforced concrete;

[0048] The foundation structure includes beam foundation, slab foundation and beam-slab combined foundation, and the foundation includes pile foundation, natural foundation and pile-soil composite foundation;

[0049] The upper part of the prefabricated foundation frame 2 is provided with a prefabricated upper structure frame 3, and the outer side of the prefabricated upper structure frame 3 is sleeved with a prefabricated upper structure steel cage 4 and a prefabricated additional upper structure steel bar 9;

[0050] A prefabricated foundation foot frame 21 is arranged at the lower part of the prefabricated foundation foot frame 2. When a plate-type foundation structure is adopted, a foundation plate prefabricated steel mesh 1 or a prefabricated foundation composite plate 10 is arranged at the lower side of the prefabricated foundation foot frame 21. When a beam-type foundation structure is adopted, a foundation beam prefabricated steel cage 6 and a foundation prefabricated steel member 8 are sleeved at the outer side of the prefabricated foundation frame 2. When a beam-slab combined foundation structure is adopted, a foundation beam prefabricated steel cage 6 and a foundation prefabricated steel member 8 are sleeved at the outer side of the prefabricated foundation frame 2, and a prefabricated steel mesh 13 for the added-axillary foundation plate is arranged at the lower side.

[0051] The prefabricated foundation frame 2 composed of the upper structure prefabricated frame 3 and the foundation foot frame 21 is a streamlined structure embedded in the cast-in-place reinforced concrete and made of high-strength materials. It can bear the load of the construction stage before the cast-in-place reinforced concrete is poured, and can bear the load of the use stage after the cast-in-place reinforced concrete is poured.

[0052] The prefabricated foundation steel bars include the prefabricated foundation beam steel cage 6 used in the beam foundation, the prefabricated foundation plate steel mesh 1 used in the slab foundation, the prefabricated beam steel cage 6 and the prefabricated foundation plate steel mesh 13 used in the beam-slab combined foundation, and also include the superstructure prefabricated steel cage and the superstructure prefabricated additional steel bars 9.

[0053] The prefabricated foundation composite plate 10 is applied to the plate-type foundation structure and the beam-slab combined foundation structure;

[0054] It is placed on the lower side of the foundation foot frame 21 and connected to the prefabricated foundation composite plate 10 through the limiting support device 21 on the prefabricated foundation frame 2.

[0055] The cast-in-place reinforced concrete is formed by bonding the prefabricated foundation skeleton 2, the prefabricated foundation steel bars and the prefabricated foundation composite plate 10 with ordinary reinforced concrete to form a composite structure, thereby improving the bearing capacity of the composite foundation structure during the use stage.

[0056] As an optimal technical solution for a series of light-weight assembled composite foundation structures, the prefabricated skeleton 2 of the foundation frame is partially sleeved with a prefabricated foundation beam reinforcement cage 6, and four prefabricated foundation reinforcement members 1 are evenly distributed on the lower side of the prefabricated foundation beam reinforcement cage 6. The foundation frame, the prefabricated foundation reinforcement members 1 and the prefabricated foundation beam reinforcement cage 6 constitute a plate-type and beam-type composite foundation structure. The area of ​​the prefabricated foundation reinforcement member 1 of the stepped shallow buried foundation structure is smaller than that of the prefabricated foundation reinforcement member 1 of the beam-type ordinary pile foundation structure. The prefabricated foundation reinforcement member 1 can be made into 10 and then used instead of the prefabricated foundation reinforcement member 1.

[0057] It includes a foundation beam pile foundation combined foundation structure and a plate pile foundation combined foundation structure, the plate type includes a raft or a cap, the foundation beam pile foundation combined structure includes a foundation prefabricated skeleton 2, a foundation beam prefabricated steel cage 6, a foundation prefabricated steel member 8, a support pile 5 and cast-in-place reinforced concrete, the foundation prefabricated skeleton 2 on the lower side of the foundation prefabricated skeleton 2 is sleeved with the foundation beam prefabricated steel cage 6, a plurality of support piles 5 are arranged at the bottom of the foundation beam prefabricated steel cage 6, the upper steel bars of the support piles 5 are anchored into the foundation beam pile foundation combined structure, and the foundation beam prefabricated steel cage 6 is provided with a foundation prefabricated steel member 8;

[0058] The plate-type pile foundation composite foundation structure includes a prefabricated foundation frame 2, a prefabricated foundation composite plate 10 or a prefabricated steel mesh 1 of the foundation plate, support piles 5 and cast-in-place reinforced concrete. A plurality of support piles 5 are arranged under the prefabricated foundation composite plate 10 or the prefabricated steel mesh 1 of the foundation plate, and the upper steel bars of the support piles 5 are anchored into the plate-type pile foundation composite foundation.

[0059] It includes a plate-type composite foundation structure and a beam-slab composite foundation structure with a foundation beam added to the axils. The plate-type includes an independent foundation or a raft. The plate-type composite foundation structure includes a foundation prefabricated frame 2, a prefabricated foundation composite plate 10 or a foundation plate prefabricated steel mesh 1, and cast-in-place reinforced concrete. The foundation prefabricated frame 2 is connected to the prefabricated foundation composite plate 10 through a limiting connection device on the foundation prefabricated frame 2 or is directly placed on the foundation plate prefabricated steel mesh 1. The prefabricated foundation composite plate 10 or the foundation plate prefabricated steel mesh 1 is placed on a natural foundation.

[0060] The beam-slab combined type foundation beam combined foundation structure comprises: a foundation prefabricated frame 2, a foundation beam prefabricated steel cage 6, a foundation prefabricated steel bar member 8, a foundation slab prefabricated steel mesh 13 and cast-in-place reinforced concrete, the foundation prefabricated frame 2 on the lower side of the foundation prefabricated frame 2 is sleeved on the outer side of the foundation prefabricated frame 2, the foundation prefabricated steel bar member 8 is arranged on the foundation beam prefabricated steel cage 6, the foundation prefabricated steel bar member 8 is arranged under the foundation beam prefabricated steel cage 6, and the foundation slab prefabricated steel mesh 13 is arranged under the foundation beam prefabricated steel cage 6, and the foundation slab prefabricated steel mesh 13 is placed on the natural foundation.

[0061] It includes a plate-type composite foundation combined foundation structure and a beam-plate type composite foundation combined foundation structure with axillary foundation beams. The plate type includes a raft plate. The plate-type composite foundation combined foundation structure includes a foundation prefabricated skeleton 2, a prefabricated foundation composite plate 10 or a foundation plate prefabricated steel mesh 1, support piles 5 and cast-in-place reinforced concrete. The foundation prefabricated skeleton 2 is connected to the prefabricated foundation composite plate 10 through a limiting connection device on the foundation prefabricated skeleton 2 or is directly placed on the foundation plate prefabricated steel mesh 1. The prefabricated foundation composite plate 10 or the foundation plate prefabricated steel mesh 1 is placed on the pile-soil composite foundation. The upper steel bars of the support piles 5 are cut off and do not directly contact the prefabricated foundation composite plate 10 or the foundation plate prefabricated steel mesh 1, and a cushion layer is arranged in the middle.

[0062] The beam-slab composite foundation combined type axilla foundation beam combined foundation structure comprises: a foundation prefabricated skeleton 2, a foundation beam prefabricated steel cage 6, a foundation prefabricated steel bar member 8, axilla foundation slab prefabricated steel mesh 13, support piles 5 and cast-in-place reinforced concrete, the foundation prefabricated skeleton 2 on the lower side of the foundation prefabricated skeleton 2 is sleeved on the outer side of the foundation prefabricated skeleton 2, the foundation prefabricated steel cage 6 is provided with a foundation prefabricated steel bar member 8, axilla foundation slab prefabricated steel mesh 13 is provided under the foundation beam prefabricated steel cage 6, the axilla foundation slab prefabricated steel mesh 13 is placed on the pile-soil composite foundation, the upper steel bars of the support piles 5 are cut off and are not in direct contact with the axilla foundation slab prefabricated steel mesh 13, and a cushion layer is provided in the middle.

[0063] The prefabricated basic skeleton 2 further includes a limit support device 22, an inclined arm 23 and a post-tensioned prestressed high-strength steel bar 24. Four limit support devices 21 are evenly distributed around the limit support device 22. Each of the limit support devices 21 is connected to the limit support device 22 through four post-tensioned prestressed high-strength steel bars 24. Two inclined arms 23 are arranged on the upper side of each limit support device 21. Adjacent limit support devices 21 are connected to the upper structure prefabricated skeleton 3 through the inclined arms 23.

[0064] Each limiting support device 21 includes two side plates 211 and a middle plate 212 . A side plate 211 is disposed on both sides of the middle plate 212 . The bottom end of the oblique arm 23 is fixedly connected to the upper side of the side plate 211 .

[0065] After the reinforced concrete is poured on the prefabricated foundation beam reinforcement cage 6, the reinforced concrete 7 is poured, and the prefabricated additional column reinforcement 9 is added to the prefabricated column reinforcement cage 4. Additional adjustments are made to further strengthen the structural strength, ensure the minimum steel consumption and meet the strength requirements of the reinforcement cage itself for transportation, production and installation. Under normal circumstances, the upper structure construction can only be carried out after the foundation concrete is cured to a certain strength. With our structure, when the prefabricated skeleton 2 and the prefabricated foundation reinforcement 1 are installed, they can support the load in the construction phase. The poured reinforced concrete can be directly constructed at the same time as the upper structure or after that, which greatly speeds up the overall progress of the project.

[0066] The prefabricated foundation beam reinforcement cage 6 includes prefabricated reinforcement bars 8 and a prefabricated reinforcement mesh, and a plurality of prefabricated reinforcement bars 8 are arranged on the prefabricated reinforcement mesh for reinforcement.

[0067] A prefabricated foundation reinforcement member 1 is provided at the bottom of the foundation frame, and a plurality of supporting piles 5 are fixedly connected to the lower side of the prefabricated foundation reinforcement member 1. The foundation frame, the prefabricated foundation reinforcement member 1 and the supporting piles 5 constitute a stepped composite pile foundation structure or a conical composite pile foundation structure.

[0068] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0069] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A series of lightweight assembled composite foundation structures, characterized by: The core components of the structural system include: a prefabricated foundation frame (2), prefabricated foundation steel bars, a prefabricated foundation composite slab (10) and cast-in-place reinforced concrete; A superstructure prefabricated frame (3) is arranged on the upper part of the prefabricated foundation frame (2), and a superstructure prefabricated steel cage (4) and a superstructure prefabricated additional steel bar (9) are sleeved on the outer side of the prefabricated superstructure frame (3); A prefabricated foundation foot frame (21) is arranged at the lower part of the prefabricated foundation frame (2). When a plate-type foundation structure is adopted: a prefabricated foundation plate steel mesh (1) or a prefabricated foundation composite plate (10) is arranged at the lower side of the prefabricated foundation foot frame (21); When a beam-type foundation structure is adopted: the foundation prefabricated frame (2) is sleeved with the foundation beam prefabricated steel cage (6) and the foundation prefabricated steel bar member (8) on the outside; When a beam-slab combined foundation structure is adopted: the foundation prefabricated frame (2) is sleeved with the foundation beam prefabricated steel cage (6) and the foundation prefabricated steel bar member (8) on the outside, and the axil foundation slab prefabricated steel mesh (13) is arranged on the bottom.

2. The light-weight assembled composite infrastructure series according to claim 1, characterized in that: The prefabricated foundation steel bars include a prefabricated foundation beam steel cage (6) used in a beam-type foundation, a prefabricated foundation plate steel mesh (1) used in a slab-type foundation, a prefabricated beam steel cage (6) and a prefabricated foundation plate steel mesh (13) used in a beam-slab combined foundation, and also include a prefabricated superstructure steel cage and prefabricated additional superstructure steel bars (9).

3. The light-weight assembled composite infrastructure series according to claim 2, characterized in that: The prefabricated foundation composite plate (10) is applied to a plate-type foundation structure and a beam-slab combined foundation structure; It is placed on the lower side of the foundation foot frame (21) and connected to the prefabricated foundation composite plate (10) via a limiting support device (21) on the prefabricated foundation frame (2).

4. The light-weight assembled composite infrastructure series according to claim 3, characterized in that: The cast-in-place reinforced concrete is formed by bonding the prefabricated foundation frame (2), the prefabricated foundation steel bars and the prefabricated foundation composite plate (10) with ordinary reinforced concrete to form a composite structure, thereby improving the bearing capacity of the composite foundation structure during the use stage.

5. The light-weight assembled composite infrastructure series according to claim 1, characterized in that: The invention comprises a foundation beam pile foundation combined foundation structure and a plate pile foundation combined foundation structure, wherein the plate type comprises a raft slab or a cap, and the foundation beam pile foundation combined structure comprises a foundation prefabricated frame (2), a foundation beam prefabricated steel cage (6), a foundation prefabricated steel member (8), a supporting pile (5) and cast-in-place reinforced concrete, wherein the foundation prefabricated frame (2) is sleeved on the outer side of the foundation prefabricated frame (2) at the lower side, a plurality of supporting piles (5) are arranged at the bottom of the foundation beam prefabricated steel cage (6), the upper steel bars of the supporting piles (5) are anchored into the foundation beam pile foundation combined structure, and the foundation prefabricated steel cage (6) is arranged on the foundation beam prefabricated steel cage (6); The plate-type pile foundation composite foundation structure comprises a prefabricated foundation frame (2), a prefabricated foundation composite plate (10) or a prefabricated steel mesh (1) of a foundation plate, support piles (5) and cast-in-place reinforced concrete. A plurality of support piles (5) are arranged under the prefabricated foundation composite plate (10) or the prefabricated steel mesh (1) of the foundation plate, and the upper steel bars of the support piles (5) are anchored into the plate-type pile foundation composite foundation.

6. The light-weight assembled composite infrastructure series according to claim 1, characterized in that: It comprises a plate-type composite foundation structure and a beam-plate composite foundation structure with a foundation beam added to the axils. The plate-type composite foundation structure comprises an independent foundation or a raft slab. The plate-type composite foundation structure comprises a prefabricated foundation frame (2), a prefabricated foundation composite slab (10) or a prefabricated steel mesh of a foundation slab (1), and cast-in-place reinforced concrete. The prefabricated foundation frame (2) is connected to the prefabricated foundation composite slab (10) through a limiting connection device on the prefabricated foundation frame (2) or is directly placed on the prefabricated steel mesh of the foundation slab (1). The prefabricated foundation composite slab (10) or the prefabricated steel mesh of the foundation slab (1) is placed on a natural foundation. The beam-slab combined type foundation beam combined foundation structure comprises: a foundation prefabricated frame (2), a foundation beam prefabricated steel cage (6), a foundation prefabricated steel bar component (8), a foundation slab prefabricated steel mesh (13) and cast-in-place reinforced concrete, wherein the foundation prefabricated frame (2) is sleeved on the outer side of the foundation prefabricated frame (2) at the lower side of the foundation prefabricated frame (2), the foundation prefabricated steel bar component (8) is arranged on the foundation beam prefabricated steel cage (6), the foundation slab prefabricated steel mesh (13) is arranged under the foundation beam prefabricated steel cage (6), and the foundation slab prefabricated steel mesh (13) is placed on the natural foundation.

7. The light-weight assembled composite infrastructure series according to claim 1, characterized in that: It comprises a plate-type composite foundation combined foundation structure and a beam-plate type composite foundation combined foundation plus axil-beam combined foundation structure, the plate type comprises a raft slab, the plate-type composite foundation combined foundation structure comprises a prefabricated foundation frame (2), a prefabricated foundation composite plate (10) or a prefabricated steel mesh of the foundation plate (1), support piles (5) and cast-in-place reinforced concrete, the prefabricated foundation frame (2) is connected to the prefabricated foundation composite plate (10) through a limiting connection device on the prefabricated foundation frame (2) or is directly placed on the prefabricated steel mesh of the foundation plate (1), the prefabricated foundation composite plate (10) or the prefabricated steel mesh of the foundation plate (1) is placed on the pile-soil composite foundation, the upper steel bars of the support piles (5) are cut off so as not to be in direct contact with the prefabricated foundation composite plate (10) or the prefabricated steel mesh of the foundation plate (1), and a cushion layer is arranged in between; The composite foundation structure of beam-slab composite foundation with axillary foundation beams comprises: a prefabricated foundation frame (2), a prefabricated foundation beam steel cage (6), a prefabricated foundation steel member (8), a prefabricated foundation slab steel mesh (13), a supporting pile (5) and cast-in-place reinforced concrete. The prefabricated foundation beam steel cage (6) is sleeved on the outer side of the prefabricated foundation frame (2) at the lower side of the prefabricated foundation frame (2). The prefabricated foundation beam steel cage (6) is provided with a prefabricated foundation steel member (8). A prefabricated foundation slab steel mesh (13) is provided under the prefabricated foundation beam steel cage (6). The prefabricated foundation slab steel mesh (13) is placed on the pile-soil composite foundation. The upper steel bars of the supporting pile (5) are cut off so as not to be in direct contact with the prefabricated foundation slab steel mesh (13), and a cushion layer is provided in the middle.

8. A lightweight assembled composite infrastructure series according to any one of claims 1 to 7, characterized in that: The prefabricated basic framework (2) further comprises a limit support device (22), an inclined arm (23) and post-tensioned prestressed high-strength steel bars (24); four limit support devices (21) are evenly distributed around the limit support device (22); each limit support device (21) is connected to the limit support device (22) via four post-tensioned prestressed high-strength steel bars (24); two inclined arms (23) are arranged on the upper side of each limit support device (21); adjacent limit support devices (21) are connected to the upper structure prefabricated framework (3) via the inclined arms (23); Each position-limiting support device (21) comprises two side plates (211) and a middle plate (212), a side plate (211) is respectively arranged on both sides of the middle plate (212), and the bottom end of the inclined arm (23) is fixedly connected to the upper side of the side plate (211).

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