Fabricated multilayer hog house structure system and construction technology thereof
By using the side walls and bottom plate of the manure trench module as the structural beams and slabs of the pigsty building, combined with modular design, the problem of the disconnect between the prefabricated pigsty structural system and process requirements is solved, realizing the construction of efficient, low-consumption, and green multi-story pigsties.
Patent Information
- Application Number
- CN202511243074.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-01
- Publication Date
- 2025-12-16
AI Technical Summary
Existing prefabricated pigsty structural systems have problems in the construction of multi-story pigsties, such as a disconnect between the structural system and process requirements, low standardization, complex connections, and high overall costs. In particular, the manure ditch structure fails to participate in the load-bearing of the main structure, resulting in material waste and increased construction complexity.
A modular, prefabricated, multi-layered pigsty structure system is designed, in which the side walls and bottom plate of the manure trench module serve as the structural beams and slabs of the load-bearing frame. By combining the prefabricated standardized manure trench modules with structural columns, beams, and longitudinal beams, an integrated frame structure is formed, realizing the multifunctional and modular design of the manure trench module and simplifying the connection nodes.
It achieves a deep integration of building structure requirements and aquaculture process requirements, reduces material usage and construction costs, improves construction efficiency and quality control, conforms to the concept of green building, and reduces environmental impact.
Smart Images
Figure CN121128606A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to a special building structure for the breeding industry, in particular to a prefabricated multi-layer pig house structure system and its construction process. BACKGROUND
[0002] With the development of large-scale and intensive livestock farming in China, pig breeding is moving towards high density, high efficiency, environmental protection and intelligentization. The increasing shortage of land resources and the increasing demand for environmental protection have prompted multi-layer pig houses to become an important choice for modern large-scale pig farms. Multi-layer pig houses can significantly improve land utilization, achieve centralized management and disease prevention and control, and reduce unit breeding costs.
[0003] However, the traditional construction mode of multi-layer pig houses faces severe challenges in efficiency, cost, quality and environmental protection. The main performance is as follows:
[0004] (1) Low construction efficiency and long construction period: Traditional multi-layer pig houses mostly use cast-in-place reinforced concrete frame structures or masonry structures. There are many wet operations on site (such as formwork, binding reinforcement, pouring concrete, and masonry walls), and the process is complicated, which is greatly affected by the weather, resulting in a long construction period (usually several months or even longer), which cannot meet the demand for rapid production, delays breeding plans, and increases the investment recovery period.
[0005] (2) High cost: Labor costs continue to rise, and on-site wet operations require a large amount of labor, and there is relatively more material waste, and the long construction period also brings higher financial and management costs.
[0006] (3) Difficulty in quality control: There are many on-site construction links, and human factors have a significant impact, making it difficult to effectively guarantee the size accuracy of components, the quality of concrete pouring, and the reliability of connecting nodes, which can easily lead to structural hazards or building quality problems (such as cracks and leaks).
[0007] (4) Significant environmental impact: On-site construction generates a large amount of construction waste, sewage, dust and noise.
[0008] (5) Complex structure design: Multi-layer pig houses have large loads (live load, equipment load, and feed load), and need to consider the requirements of the manure removal process. The side walls of the manure channel, which is the core functional component of the multi-layer pig house, are usually only considered as non-load-bearing maintenance or partition structures. In order to bear the floor load and meet the overall structural integrity requirements, independent structural beams (such as overbeams or transfer beams) are often added in the manure channel area, or beams are added between the columns, which increases the complexity of the structure, the amount of materials used, and the construction cost, while also occupying valuable building space (especially the layer height).
[0009] In recent years, prefabricated buildings have been widely used in industrial and civil construction fields due to their fast construction speed, controllable quality, and green environmental protection. In agricultural buildings, especially in pig houses, prefabricated technologies (such as light steel structures and prefabricated concrete slabs) have also been tried. However, the existing prefabricated technologies applied to pig houses still have the following key problems: (1) the structure system is disconnected from the process requirements: the design of most existing prefabricated pig house structure systems focuses on the rapid installation of the main structure, without fully considering and deeply integrating the unique process requirements of pig houses, especially the core position of the manure treatment system. The side walls of the manure ditch are still only functional partition components and do not participate in the main structure stress; (2) low standardization and poor universality: the existing prefabricated pig house components are often designed for specific projects, lack a unified modular and standardized system, and are difficult to adapt to the flexible needs of pig houses of different sizes and process layouts, resulting in low component reuse rate and high mold cost.
[0010] Based on the above analysis, the current status of the existing prefabricated pig house technology is: (1) redundant structure system: independent structural beams need to be set above or beside the manure ditch to support the floor load, causing material and space waste; (2) limited overall structure: the non-structural manure ditch side wall has limited contribution to the overall structural stiffness; (3) complex connection: the connection nodes of the prefabricated manure ditch components and the main structure beams and columns are complex, affecting the construction speed and reliability; (4) insignificant overall cost advantage: due to insufficient standardization, lack of multifunctionality of components (such as the manure ditch only bearing a single function), and possible increased transportation and hoisting costs, the overall cost advantage of the existing prefabricated pig house is sometimes not significant, hindering its large-scale promotion.
[0011] Therefore, there is an urgent need to develop an innovative prefabricated multi-layer pig house structure system and its supporting construction process. The system should deeply integrate the architectural structure requirements and the breeding process requirements, especially give the core process component "manure ditch" a structural function, maximize the use of component functions, achieve "one thing with multiple functions", reduce redundant components, optimize space utilization, and realize truly efficient, low-cost, high-quality, and green prefabricated multi-layer pig house construction. SUMMARY
[0012] To solve the technical problems in the prior art, the purpose of the present application is to provide a prefabricated multi-layer pig house structure system with simplified structure and modularization and its construction process.
[0013] To achieve the above purpose, the technical scheme adopted by the present application is as follows:
[0014] An assembled multi-layer pig house structure system, which combines the building structure requirements with the pig breeding process requirements, comprises a bearing platform arranged on a foundation, and a bearing frame arranged on the bearing platform; the bearing frame comprises structural columns, transverse beams, longitudinal beams, structural plates, and prefabricated standardized manure ditch modules which form a multi-layer frame structure; the side walls of the manure ditch modules are integrally arranged with the longitudinal beams of the bearing frame; the bottom plates of the manure ditch modules and the channel bottom plates serve as the structural plates of the bearing frame; the transverse beams are arranged on the structural columns; the manure ditch modules are arranged on the transverse beams or the longitudinal beams; and the manure leakage plates are arranged above the manure ditch modules.
[0015] As a preferred option, the manure ditch modules are designed in two forms, namely, a monolithic form and an assembled form, and the details are as follows.
[0016] The monolithic manure ditch module is a monolithic structure in the shape of a "mountain", comprising three side walls and a bottom plate; the ends of the entire manure ditch module are directly rested on two transverse beams; and the manure ditch module forms two manure ditches along the longitudinal direction.
[0017] The assembled manure ditch module comprises five parts, namely, two side walls, a middle side wall, and two bottom plates; the bottom of each side wall extends a side wing on one side to form an L-shaped structure, the bottom of the middle side wall extends a side wing on each side to form an inverted T-shaped structure, the bottom plates are arranged between the side wings of the side walls and the side wings of the middle side wall, and the assembled structure also forms a "mountain" shape; the ends of the side walls and the middle side wall are directly rested on two transverse beams; and the manure ditch module also forms two manure ditches along the longitudinal direction.
[0018] As a preferred option, in each manure ditch module, the three side walls simultaneously serve as the longitudinal beams, and two steel bars are extended from the upper part and the lower part of each end surface of each side wall; after the manure ditch module is hoisted and completed, the steel bars are extended into the structural columns to form a steel framework of a connecting joint between the structural columns and the side walls of the manure ditch module together with the vertical main reinforcement and the horizontal stirrups of the structural columns, and micro-expansion concrete is poured at the connecting joint to realize the connection between the structural columns and the manure ditch module.
[0019] As a preferred option, for the monolithic manure ditch module, two rows of steel bars are extended from the longitudinal ends of the bottom plate, the steel bars extended from the bottom plates of adjacent manure ditch modules are connected after the manure ditch module is hoisted and rested on the transverse beams, the steel bars serve as a post-poured strip of the bottom plate of the manure ditch module, micro-expansion concrete is poured at the post-poured strip of the bottom plate to realize the connection between the bottom plates of adjacent manure ditches; for the assembled manure ditch module, one steel bar is extended from each end of each side wing, the steel bars extended from adjacent side wings are connected after the side walls are hoisted and rested on the transverse beams, the steel bars serve as a post-poured strip of the side wing, micro-expansion concrete is poured at the post-poured strip of the side wing to realize the connection between the side wings, the bottom plates are directly placed on the side wings of the side walls, the longitudinal adjacent bottom plates are encapsulated by high-performance concrete, and the bottom plates and the side walls, and the bottom plates and the middle side walls are all encapsulated by high-performance concrete.
[0020] As a preferred, a corbel is arranged on the side of the structural column facing the manure ditch at the connecting node of the side wall of the manure ditch module, the top surface of the corbel is flush with the top surface of the side wall of the manure ditch, and is used for subsequent laying of the manure leakage plate; a corbel is also arranged on the side of the connecting node facing the channel, and is used for subsequent placement of the channel bottom plate bottom form.
[0021] As a preferred, the top of the side wall of the manure ditch module near the channel bottom plate extends a row of longitudinally arranged L-shaped steel bars, which serve as the connecting key of the side wall of the manure ditch module and the channel bottom plate.
[0022] As a preferred, the longitudinal length of one manure ditch module is a standard module, the spacing of the adjacent transverse ground beams / beams corresponds to the longitudinal length module of the manure ditch module, that is, one standard module; the spacing of the structural columns in the longitudinal direction is the same as the spacing of the transverse ground beams / beams, and the spacing in the transverse direction corresponds to the width of one manure ditch or the width of one channel; a plurality of manure ditch modules are assembled in the longitudinal direction to form a complete manure ditch.
[0023] As a preferred, the transverse ground beams / beams and the structural columns are cast-in-place structures.
[0024] As a preferred, the beam uses a detachable steel bar truss floor slab as a bottom form for pouring concrete, and the detachable steel bar truss floor slab is placed on the top surface of the lower structural column; the channel bottom plate uses a detachable steel bar truss floor slab as a bottom form for pouring concrete, and the detachable steel bar truss floor slab is placed on the top surface of the side wall of the manure ditch module or the lateral corbel of the structural column.
[0025] A construction process of an assembled multi-layer pig house structure system, the manure ditch module is a prefabricated assembly component, the side wall and the bottom plate thereof are simultaneously used as longitudinal beams and structural plates of a bearing frame respectively, the construction of the manure ditch module connecting node, the structural column, the beam and the channel bottom plate is combined to complete the construction of the entire pig house bearing frame; based on the size of the manure ditch module, the arrangement of the structural column and the transverse ground beams / beams is modularly designed, the structural column and the transverse ground beams / beams are arranged in a rectangular array, the manure ditch module and the channel bottom plate are embedded in the array structure, and the manure leakage plate is arranged above the manure ditch module.
[0026] The principle of the application is:
[0027] To address the disconnect between the building structure and technological requirements in traditional multi-story pigsties, where the core technological component—the manure trench—is merely a functional partition, a novel pigsty frame structure is proposed. This system is based on the idea of assigning structural functions to the manure trench sidewalls and floor slabs, respectively serving as structural beams and slabs within the load-bearing framework of the pigsty. The system comprises structural columns, transverse ground beams / beams, longitudinal beams (manure trench sidewalls), and the manure trench floor slab / channel floor slab. This optimizes the multi-story pigsty structure, effectively reducing material usage and construction costs. The system achieves a deep integration of structural requirements and livestock farming process needs.
[0028] The core component of the pigsty, the manure ditch, is designed as a modular component—the manure ditch module. Based on this, the load-bearing frame is also modularly designed, with the spacing of structural columns and transverse ground beams / beams matching the dimensions of the manure ditch modules. This achieves standardization of the multi-story pigsty structural system, facilitating standardized design and construction.
[0029] The side walls and bottom plate of the manure trench module serve as both load-bearing longitudinal beams and structural slabs, which can simplify the load-bearing structural system of pigsty buildings.
[0030] The present invention has the following advantages:
[0031] 1. Multifunctional components: The core components of pig manure treatment—the sidewalls and bottom slabs of the manure ditch—are used as structural beams and slabs of the load-bearing frame structure of the pig house, respectively. This integrates the process requirements of the pig house with the structural system, making full use of all the components of the building, saving materials, and reducing the floor height of the pig house, resulting in significant economic benefits.
[0032] 2. Component Standardization: Based on the functionalization of the structural system, a modular and standardized multi-layer pig house prefabricated structural system has been created. The prefabricated components have a high degree of standardization and good versatility, which can adapt to the flexible needs of pig houses of different sizes and process layouts. The high component reuse rate significantly reduces the amortization cost of molds, resulting in obvious overall cost advantages.
[0033] 3. Prefabricated components: The construction process of prefabricated multi-story pigsties has been developed, which greatly reduces on-site wet work, lowers the difficulty of construction quality control, and reduces the impact on the surrounding environment, which is in line with the concept of green building.
[0034] 4. Simple and reliable component connection: The connection nodes between the prefabricated manure trench modules and the main structure's transverse ground beams / beams and columns are simple and reliable, effectively improving the efficiency of pigsty construction.
[0035] 5. To achieve the construction of efficient, low-consumption, high-quality, and green prefabricated multi-story pig houses. Attached Figure Description
[0036] Figure 1 This is a schematic diagram of the construction of the foundation and transverse ground beam.
[0037] Figure 2 This is a schematic diagram of an integrated manure trench module.
[0038] Figure 3 This is a schematic diagram of the hoisting of the first-floor integrated manure trench module.
[0039] Figure 4 This is a schematic diagram of the post-cast strip pouring of the first-floor integrated manure trench module.
[0040] Figure 5 This is a construction diagram of the first-floor structural columns.
[0041] Figure 6 This is a schematic diagram of the installation of the steel truss floor deck slab on the first-floor passageway without the need for dismantling.
[0042] Figure 7 This is a schematic diagram of the construction of the first-floor passageway floor slab.
[0043] Figure 8 This is a schematic diagram of the installation of the floor deck slab with the steel truss structure for the second-floor beams that does not require dismantling.
[0044] Figure 9 This is a construction diagram of the second-floor beam.
[0045] Figure 10 This is a schematic diagram of the hoisting of a two-story integrated manure trench module.
[0046] Figure 11 This is a schematic diagram of the completed main structure of the two-story pigsty (integrated manure ditch module).
[0047] Figure 12 This is a schematic diagram of an assembled manure trench module.
[0048] Figure 13 This is a breakdown diagram of the assembled manure trench module.
[0049] Figure 14 This is a schematic diagram of the side wall hoisting of the first-floor assembled manure trench module.
[0050] Figure 15 This is a schematic diagram of the pouring of the connection node between the side wall and the structural column of the first-floor assembled manure trench module.
[0051] Figure 16 This is a schematic diagram of the hoisting of the base plate of the first-floor assembled manure trench module.
[0052] Figure 17 This is a schematic diagram of the completed main structure of the two-story pigsty (assembled manure ditch module).
[0053] Figure 18This is a schematic diagram of the main structure of a two-story pigsty (integrated manure ditch module) with a slatted floor installed.
[0054] Figure 19 This is a schematic diagram of the main structure of a two-story pigsty (modular manure ditch module) with manure slats installed.
[0055] In the diagram: 1—Pile cap; 2—Transverse ground beam; 3—Longitudinal reinforcement (main reinforcement) of structural column; 4—Integral manure trench module base slab; 5—Lap reinforcement of manure trench module base slab; 6—Integral manure trench module side wall (longitudinal beam); 7—Lap reinforcement of manure trench module side wall; 8—L-shaped reinforcement; 9—Horizontal stirrups at the connection node between side wall and structural column; 10—Post-cast strip of integral manure trench module base slab; 11—Connection node between integral manure trench module side wall and structural column; 12—Side wall reinforcement. 13—Structural column; 14—Removable steel truss floor slab; 15—Passage floor slab; 16—Beam; 17—Integrated manure trench module; 18—Roof; 19—Middle side wall of assembled manure trench module; 20—Side wall of assembled manure trench module without L-shaped steel bars; 21—Side wall of assembled manure trench module with L-shaped steel bars; 22—Base plate of assembled manure trench module; 23—Connection node between side wall of assembled manure trench module and structural column; 24—Slatted floor. Detailed Implementation
[0056] The present invention will now be described in further detail with reference to specific embodiments.
[0057] A prefabricated multi-story pigsty structural system integrates architectural structural requirements with pig farming process requirements. It includes a foundation platform and a load-bearing frame mounted on the foundation. The load-bearing frame comprises structural columns forming the multi-story frame structure, transverse ground beams / beams, longitudinal beams, structural slabs, and prefabricated standardized manure trench modules. The sidewalls of the manure trench modules are integrated with the longitudinal beams of the load-bearing frame. The bottom slab of the manure trench module and the bottom slab of the passageway serve as the structural slabs of the load-bearing frame. The beams are erected on the structural columns. The manure trench modules are erected on the transverse ground beams or beams. A slatted floor is installed above the manure trench modules.
[0058] The structural columns, transverse ground beams / beams, longitudinal beams (sidewalls of the manure trench module), and manure trench module floor slabs / channel floor slabs constitute the column, beam, and slab structural system of the entire building. This invention focuses on describing only the improved parts of the multi-story pigsty; other structures of the multi-story pigsty structure, such as stairs, piping systems, electrical systems, and guardrails, are the same as in existing technologies.
[0059] The manure collection ditch module, which serves as a collection point for pig manure, is a modular, prefabricated reinforced concrete component. It is designed in two forms: the integral type in Example 1 and the assembled type in Example 2, as follows: Figure 11 and Figure 17 .
[0060] Example 1
[0061] The manure ditch module is an integral “mountain”-shaped structure, including three side walls and a bottom plate, as shown in Figure 2 ; The ends of the manure ditch module are directly placed on two cross beams or transverse ground beams; The manure ditch modules are arranged in sequence along the longitudinal direction to form two manure ditches, specifically as shown in Figure 3 .
[0062] In each manure ditch module, the three side walls simultaneously serve as load-bearing longitudinal beams. Two steel bars (diameter ≥ 14 mm) extend from the upper and lower parts of both end faces of each side wall, as shown in Figure 2 ; After the manure ditch module is hoisted in place, the steel bars extend into the structural column, and together with the vertical main bars and horizontal stirrups of the structural column, they form the steel bar framework of the connection node between the structural column and the side wall, as shown in Figure 3 ; Micro-expansion concrete is poured at this connection node. Through the construction of the connection node, the integrity of the connection node between the side wall of the manure ditch module and the structural column is ensured, as shown in Figure 4 .
[0063] In the integral manure ditch module, two rows of steel bars (diameter ≥ 8 mm, spacing ≤ 150 mm) extend from both longitudinal ends of the bottom plate, as shown in Figure 2 ; After the manure ditch module is hoisted in place, the steel bars extending from the bottom plates of adjacent manure ditch modules are connected, as shown in Figure 3 ; As the post-cast strip of the manure ditch module, micro-expansion concrete is poured at the post-cast strip to connect the adjacent bottom plates, as shown in Figure 4 .
[0064] A corbel is provided on the side facing the manure ditch at the connection node between the structural column and the side wall of the manure ditch module. The corbel is flush with the top surface of the side wall of the manure ditch module and is used for laying the manure leakage plate, as shown in Figure 4 ; A corbel is provided on the side facing the passage at the connection node for later setting the bottom formwork of the passage bottom plate (i.e., the non-removable steel bar truss floor slab), as shown in Figure 6 .
[0065] At the top of the side wall on the side of the manure ditch module close to the passage bottom plate, a row of longitudinally arranged L-shaped steel bars (diameter ≥ 14 mm, spacing ≤ 150 mm) extends. The L-shaped steel bars bend towards the passage side, and the L-shaped steel bars serve as the connection keys between the side wall and the passage bottom plate, as shown in Figure 2 and 6 .
[0066] The longitudinal length of the manure ditch module is a standard modulus. The spacing between adjacent transverse ground beams / cross beams corresponds to the length modulus of the manure ditch module, that is, one standard modulus; The longitudinal spacing of the structural columns is the same as the spacing between the transverse ground beams / cross beams, and the transverse spacing corresponds to the width of one manure ditch or the width of one passage respectively; Multiple manure ditch modules are connected to form the manure ditch passage bottom plate.
[0067] The horizontal ground beams / beams and structural columns are cast-in-place structures.
[0068] The crossbeams use precast steel truss floor slabs as the bottom formwork for poured concrete; the passageway floor slab also uses precast steel truss floor slabs as the bottom formwork for poured concrete, and is also cast in place on site. These precast steel truss floor slabs are placed on the top surface of the side walls of the manure trench module or on the corbels on the sides of the structural columns. After pouring, a complete passageway is formed. This construction method eliminates the need for erecting scaffolding to support the formwork.
[0069] Taking a two-story pigsty using an integral manure trench module with its structural columns and transverse ground beams / beams cast in place as an example, the construction process of this invention is illustrated as follows: (1) foundation construction; (2) excavation of the foundation and transverse ground beams; (3) reinforcement binding, formwork installation, and concrete pouring of the foundation and transverse ground beams (longitudinal reinforcement of the columns needs to be reserved in the foundation), such as Figure 1 (4) The first-floor prefabricated manure trench modules are hoisted. The form of the manure trench modules is shown in the figure. Figure 2 (5) The stirrups at the connection points between the first-floor structural columns and the sidewalls of the manure ditch are tied (see...). Figure 3 (6) Post-pouring strip (including the overlap of the bottom plate of the first-floor manure trench module and the connection node between the manure trench sidewall and the first-floor structural column) micro-expansion concrete pouring, see Figure 4 (7) For the binding of the stirrups and installation of formwork and concrete pouring of the upper part of the first-floor structural columns, it is necessary to reserve the main reinforcement of the second-floor structural columns, see Figure 5 (8) Installation of the first-floor passageway without dismantling the steel truss floor deck (see...) Figure 6 ), rebar tying, side formwork installation and concrete pouring, see Figure 7 (9) Hoisting of the second-floor beam without dismantling the steel truss floor deck (see...) Figure 8 ), rebar tying, side formwork installation and concrete pouring, see Figure 9 (10) Hoisting of the second-floor prefabricated manure trench modules, see Figure 10 (11) Binding of stirrups and installation of formwork at the bottom of the second-floor structural columns; (12) Pouring of micro-expansion concrete for the second-floor post-pouring strip (including the overlap of the bottom plate of the second-floor manure trench module and the connection node between the side wall of the second-floor manure trench and the second-floor structural column); (13) Binding of stirrups, installation of formwork and pouring of concrete at the top of the second-floor structural columns; (14) Installation of the second-floor passageway non-removable steel truss floor deck, binding of steel bars, installation of side formwork and pouring of concrete; (15) Binding of steel bars, installation of formwork and pouring of concrete for roof beams and slabs.
[0070] Example 2
[0071] The manure trench module is a "mountain"-shaped assembly structure, including two side walls, one middle side wall, and two base plates. One side of the bottom of each side wall extends out a wing, forming an L-shape. The bottom of each side of the middle side wall extends out a wing, forming an inverted T-shape. The base plate is placed between the winglets of the side and middle side walls. The ends of both the side and middle side walls rest directly on two crossbeams or transverse ground beams. The manure trench modules are arranged longitudinally to form two manure trenches. See details... Figure 12 and 13 .
[0072] In each manure trench module, three side walls simultaneously serve as load-bearing longitudinal beams. Two reinforcing bars (diameter ≥ 14mm) extend from the upper and lower ends of each side wall. Figure 12 As shown; after the manure trench module is hoisted, the reinforcing bar extends into the structural column, forming a reinforcing steel skeleton for the connection node between the structural column and the side wall together with the vertical main reinforcement and horizontal stirrups of the structural column. This connection node is then constructed with micro-expansion concrete. The construction of the connection node ensures its integrity, as shown... Figure 14 and 15 As shown.
[0073] In the modular manure trench, each side wing has a reinforcing bar (diameter ≥ 8mm) extending from the top and bottom. After the side walls are hoisted, the reinforcing bars of adjacent side wings are connected to form a post-cast strip for the side wings. Micro-expansion concrete is poured into the post-cast strip to connect adjacent side wings. The base plate is placed directly on the side wings. High-performance concrete is used to encapsulate the longitudinal connections between adjacent base plates, between the base plate and the side walls, and between the base plate and the middle side walls. Figure 16 As shown.
[0074] At the connection point between the structural column and the sidewall of the manure ditch, a corbel is installed on the side facing the manure ditch. The corbel is flush with the top surface of the manure ditch sidewall and is used to lay the slatted floor. Figure 15 A corbel is set on the side of the connection node facing the passage for later setting of the bottom formwork of the passage floor slab (i.e., the non-removable steel truss floor slab).
[0075] A row of longitudinally arranged L-shaped steel bars (diameter ≥ 14mm, spacing ≤ 150mm) extends from the top of the sidewall of the manure trench module near the bottom slab of the passage. These L-shaped steel bars bend towards one side of the passage, serving as a key connecting the sidewall to the bottom slab of the passage. Figure 12 and 16 As shown.
[0076] The longitudinal length of the manure trench module is a standard module, and the spacing between adjacent transverse ground beams / beams corresponds to the length module of the manure trench module, i.e., one standard module; the longitudinal spacing of the structural columns is the same as the spacing of the transverse ground beams / beams, and the transverse spacing corresponds to the width of a manure trench or the width of a passage; multiple manure trench modules are connected to form the manure passage bottom plate.
[0077] The horizontal ground beams / beams and structural columns are cast-in-place structures.
[0078] The crossbeams use precast steel truss floor slabs as the bottom formwork for poured concrete; the passageway floor slab also uses precast steel truss floor slabs as the bottom formwork for poured concrete, and is also cast in place on site. These precast steel truss floor slabs are placed on the top surface of the side walls of the manure trench module or on the corbels on the sides of the structural columns. After pouring, a complete passageway is formed. This construction method eliminates the need for erecting scaffolding to support the formwork.
[0079] If modular manure trenches are used, the construction process is as follows: (1) foundation construction; (2) excavation of the foundation and transverse ground beams; (3) reinforcement binding, formwork installation and concrete pouring of the foundation and transverse ground beams (longitudinal reinforcement of columns needs to be reserved in the foundation), such as Figure 1 (4) Side wall hoisting of inverted T-shaped and L-shaped manure trench modules; see manure trench module form for details. Figure 12 and 13 (5) The stirrups at the joint between the first-floor structural column and the side wall of the manure ditch are tied (see...). Figure 14 (6) Installation of formwork; (7) Pouring of micro-expansion concrete at the joint between the side wall of the manure ditch and the first-floor structural column, and at the post-pouring strip of the manure ditch side wing, see Figure 15 (7) Laying of the bottom slab of the manure ditch, see Figure 16 (8) Binding of stirrups and installation of formwork and concrete pouring of the upper part of the first-floor structural columns, and the main reinforcement of the second-floor structural columns need to be reserved; (9) Installation of the first-floor passage's steel truss floor slab without dismantling, binding of steel bars, installation of side formwork and concrete pouring; (10) Hoisting of the second-floor beam's steel truss floor slab without dismantling, binding of steel bars, installation of side formwork and concrete pouring; (11) Hoisting of the second-floor inverted T-shaped and L-shaped manure trench sidewalls; (12) Binding of stirrups and installation of formwork at the joint between the second-floor structural columns and the manure trench sidewalls; (13) Pouring of micro-expansion concrete at the joint between the manure trench sidewalls and the second-floor structural columns, and the manure trench side wing post-pouring strip; (14) Paving of the second-floor manure trench bottom slab; (15) Binding of stirrups, installation of formwork and concrete pouring of the upper part of the second-floor structural columns; (16) Installation of the second-floor passage's steel truss floor slab without dismantling, binding of steel bars, installation of side formwork and concrete pouring; (17) Binding of roof beams and slabs, installation of formwork and concrete pouring.
[0080] The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present invention shall be considered equivalent substitutions and shall be included within the protection scope of the present invention.
Claims
1. A prefabricated multi-layer pigsty structural system, characterized in that: The building structure requirements are integrated with the pig farming process requirements, including a foundation platform and a load-bearing frame on the foundation platform. The load-bearing frame includes structural columns forming a multi-layered frame structure, transverse ground beams / beams, longitudinal beams, structural slabs, and prefabricated standardized manure trench modules. The side walls of the manure trench modules are integrated with the longitudinal beams of the load-bearing frame. The bottom slab of the manure trench module and the bottom slab of the passageway serve as the structural slabs of the load-bearing frame. The beams are erected on the structural columns. The manure trench modules are erected on the transverse ground beams or beams. The manure slats are installed above the manure trench modules.
2. The prefabricated multi-story pigsty structure system according to claim 1, characterized in that: The manure trench module is designed in two forms: integral and assembled. The integrated manure trench module has a "mountain" shaped integrated structure, including three side walls and a bottom plate; the end of the entire manure trench module is directly placed on two transverse ground beams / beams; the manure trench module forms two manure trenches along the longitudinal direction; The modular manure trench consists of five parts: two side walls, one middle side wall, and two base plates. One side of the bottom of the side wall extends out to form an L-shape, and the bottom of the middle side wall extends out to each side to form an inverted T-shape. The base plates are placed between the side wings of the side walls and the middle side walls, forming a "mountain" shape after assembly. The ends of the side walls and the middle side walls are directly placed on two transverse ground beams / beams. The manure trench module also forms two manure trenches along the longitudinal direction.
3. A prefabricated multi-story pigsty structural system according to claim 2, characterized in that: In each manure trench module, three side walls simultaneously serve as load-bearing longitudinal beams, with two reinforcing bars extending from the upper and lower ends of each side wall. After the manure trench module is hoisted, these reinforcing bars extend into the structural column, forming a reinforcing steel skeleton for the connection node between the structural column and the manure trench module side walls together with the vertical main reinforcement and horizontal stirrups of the structural column. This connection node is constructed by pouring micro-expansion concrete to achieve the connection between the structural column and the manure trench module.
4. A prefabricated multi-layer pigsty structural system according to claim 2, characterized in that: For the integral manure trench module, two rows of steel bars extend from each of the longitudinal ends of the base plate. After the manure trench module is hoisted and placed on the transverse ground beam / crossbeam, the steel bars extending from the base plates of adjacent manure trench modules are connected to form a post-pouring strip for the base plate. Micro-expansion concrete is poured into the post-pouring strip to connect the adjacent manure trench base plates. For the assembled manure trench module, one steel bar extends from each end of each side wing. After the side wall is hoisted and placed on the transverse ground beam / crossbeam, the steel bars extending from adjacent side wings are connected to form a post-pouring strip for the side wing. Micro-expansion concrete is poured into the post-pouring strip to connect the adjacent side wings. The base plate is placed directly on the side wing of the side wall. The longitudinal adjacent base plates are sealed with high-performance concrete. The base plate and the side wall, as well as the base plate and the middle side wall, are also sealed with high-performance concrete.
5. A prefabricated multi-layer pigsty structural system according to claim 3, characterized in that: At the connection node between the structural column and the side wall of the manure ditch module, a corbel is set on the side facing the manure ditch, with the top surface of the corbel flush with the top surface of the manure ditch side wall, for subsequent laying of the manure slatted floor; at the connection node, a corbel is also set on the side facing the passage, for subsequent placement of the bottom formwork of the passage floor slab.
6. A prefabricated multi-story pigsty structural system according to claim 2, characterized in that: A row of longitudinally arranged L-shaped steel bars extends from the top of the side wall of the manure trench module near the bottom plate of the channel. The L-shaped steel bars serve as the connecting key between the side wall of the manure trench module and the bottom plate of the channel.
7. A prefabricated multi-story pigsty structural system according to claim 1, characterized in that: The longitudinal length of a manure trench module is a standard module. The spacing between adjacent transverse ground beams / beams corresponds to the longitudinal length module of the manure trench module, i.e., a standard module. The longitudinal spacing of the structural columns is the same as the spacing of the transverse ground beams / beams, and the transverse spacing corresponds to the width of a manure trench or the width of a passage. Multiple manure trench modules are assembled longitudinally to form a complete manure trench.
8. A prefabricated multi-story pigsty structural system according to claim 1, characterized in that: The horizontal ground beams / beams and structural columns are cast-in-place structures.
9. A prefabricated multi-story pigsty structural system according to claim 5, characterized in that: The crossbeams use a non-removable steel truss floor slab as the bottom formwork for pouring concrete, and the non-removable steel truss floor slab is placed on the top surface of the lower structural column; the passageway bottom slab uses a non-removable steel truss floor slab as the bottom formwork for pouring concrete, and the non-removable steel truss floor slab is placed on the top surface of the side wall of the manure trench module or on the corbel on the side of the structural column.
10. The construction process of a prefabricated multi-story pigsty structure system according to any one of claims 1 to 9, characterized in that: The manure trench module is a prefabricated assembly component. Its side walls and bottom plate serve as the longitudinal beams and structural slabs of the load-bearing frame, respectively. Combined with the on-site casting construction of the manure trench module connecting nodes, structural columns, beams and channel bottom plates, the entire load-bearing frame of the pigsty is completed. Based on the size of the manure trench module, the arrangement of the structural columns and transverse ground beams / beams is modularly designed. The structural columns and transverse ground beams / beams are arranged in a rectangular array. The manure trench module and channel bottom plate are embedded in the array structure, and the manure slat board is set on top of the manure trench module.