Fully-assembled rural house steel-concrete composite structure body

Abstract

The invention provides a fully-assembled rural house steel-concrete composite structural body, and relates to the technical field of steel structures. The fully-assembled rural house steel-concrete combined structural body is formed by combining and assembling concrete floor slabs, steel columns and H-shaped steel beams, the concrete floor slabs are prefabricated and poured concrete structural members, the steel columns are prefabricated column steel members, steel column welding anchor bars are welded to one sides of the steel columns, and H-shaped steel beams are welded to the other sides of the steel columns. A steel beam welding anchor bar and a welding steel bar are welded to one side of the lower end of the H-shaped steel beam, a plurality of steel beam welding floor fixing screws are welded to an upper flange plate of the H-shaped steel beam, and a plurality of preformed holes are formed in the upper end of the concrete floor. By proposing a prefabrication assembly installation design concept, steel bar positioning and concrete shaping can be achieved at the same time, and installation is convenient and fast. And the device is suitable for factory batch manufacturing, low in component machining technical difficulty, high in production and machining efficiency and suitable for transportation and installation on rural narrow roads.

Description

Technical Field

[0001] The invention relates to the technical field of steel structures, in particular to a fully assembled farmhouse steel-concrete composite structure. Background Art

[0002] The essential feature of reinforced concrete structure is that it can simultaneously form supporting structural components such as beams, slabs, walls, and columns to build a house structure. Its greatest advantage is that it can achieve the most convenient steel bar lap connection, flexible concrete molding, integral cast-in-place, and build an integral structure. In recent years, the mechanized large-scale production, transportation, and delivery of concrete have given full play to the advantages of cast-in-place structures.

[0003] However, currently prefabricated components are limited by weight and transportation, and the specifications are very small. Otherwise, they are too wide and too high to be transported. In addition, high-strength brackets are required to support and position a large number of components at high altitudes, and the installation and removal of these brackets can only be achieved through manual work. The molds or templates required in the component manufacturing process also require dozens of tons, and heavy physical labor is also required for installation and removal. The transportation, hoisting, and installation of existing prefabricated assembly components are very inconvenient, the labor intensity of workers is high, and the construction period is long. This high cost has lost the fundamental purpose of prefabrication. Summary of the invention

[0004] (I) Technical solution

[0005] To solve the above technical problems, the present invention is implemented through the following technical solutions: a fully assembled steel-concrete composite structure of a farmhouse, which is assembled by a combination of a concrete floor, a steel column and an H-shaped steel beam. The concrete floor is a precast concrete structural member, and the steel column is a precast column steel member. A steel column welding anchor bar is welded on one side of the steel column, and a steel beam welding anchor bar and a welded steel bar are respectively welded on one side of the lower end of the H-shaped steel beam. A plurality of steel beam welding floor fixing screws are welded on the upper flange plate of the H-shaped steel beam, and a plurality of reserved holes are opened on the upper end of the concrete floor. A plurality of the steel beam welding floor fixing screws pass through the reserved openings and are fixed to the concrete floor by tightening nuts. The concrete floor is located on the upper flange plate at the upper end of the steel column and the upper end of the H-shaped steel beam, and a concrete wall panel is cast on one side of the steel column and the lower end of the H-shaped steel beam.

[0006] Preferably, a plurality of connection holes are provided on the upper end surface and one side of the outer wall of the concrete wall panel, and the steel column and H-shaped steel beam are integrally cast with the concrete wall panel through steel column welded anchor bars and steel beam welded anchor bars, respectively, to form an integrated structure.

[0007] Preferably, the steel column and the H-shaped steel beam are hinged by screws through the beam-column hinge of the steel structure beam-column node.

[0008] Preferably, the steel columns, H-shaped steel beams and concrete wall panels support the concrete floor slabs to form a load-bearing structure, and the structural forms of the load-bearing structure include the following:

[0009] A. The concrete wall panel and at least two steel columns and an H-shaped steel beam are assembled to form a load-bearing structure;

[0010] B. An H-shaped steel beam and at least two steel columns are assembled together to form a load-bearing structure.

[0011] Preferably, when a load-bearing structure of structure A is adopted, the steel columns, H-shaped steel beams and concrete wall panels jointly bear the load; when a load-bearing structure of structure B is adopted, the steel columns and H-shaped steel beams jointly share the support, and at this time, lightweight concrete wall panels are not used between the steel columns and the H-shaped steel beams.

[0012] A design and assembly method for a fully assembled farmhouse steel-concrete composite structure specifically comprises the following steps:

[0013] Step 1. Design the load-bearing structure

[0014] The original design drawing of the load-bearing structure is formed according to the current reinforced concrete specifications, wherein the load-bearing structure includes at least two steel columns, an H-shaped steel beam and an integrally cast concrete wall panel;

[0015] Step 2. Build the load-bearing structure

[0016] At least two steel columns are installed and fixed vertically, and an H-shaped steel beam is installed between the two steel columns and connected to the steel columns by using a steel structure beam-column node-screw hinge method, and then one side of the outer wall of the steel column and the lower end of the H-shaped steel beam are integrally cast with the concrete wall slab through steel column welding anchor bars and steel beam welding anchor bars respectively to form an integrated structure, and a plurality of steel beam welding floor slab fixing screws are welded on the upper end of the H-shaped steel beam;

[0017] Step 3. Floor construction

[0018] A precast concrete floor slab with pre-set holes is installed on the upper end of the precast bearing structure, and the steel beam welding floor slab fixing screws are passed through the pre-set holes and then the concrete floor slab and the H-shaped steel beam are assembled and connected by tightening nuts.

[0019] (II) Beneficial effects

[0020] The present invention provides a fully assembled farmhouse steel-concrete composite structure, which has the following beneficial effects:

[0021] 1. This node is connected by bolts, welding and riveting, and has stable mechanical properties.

[0022] 2. When the requirements for this type of structure are high, the bolts can be replaced with rivets to further increase the connection strength.

[0023] 3. This structure can be applied to the connection of box-type steel columns and hot-rolled and welded H-shaped steel beams of various specifications.

[0024] 4. The processing of steel beams and steel columns can be completed by fully automatic processing production lines, from raw materials to finished products. It has the characteristics of high degree of automation, batch production, high material utilization rate and stable quality.

[0025] 5. This structure is suitable for batch production in factories, with low component processing technology difficulty and high production and processing efficiency.

[0026] 6. This structure avoids wet work during on-site installation and improves installation efficiency.

[0027] 7. The number of bolts and the position of bolt holes at the nodes can be designed according to the specifications of the steel sections and the stress conditions. The thickness of the concrete slab can also be designed according to the specifications of the steel sections and the stress conditions.

[0028] 8. This connection node is suitable for all positions of steel-concrete composite structures.

[0029] 9. This connection node is suitable for fully assembled farmhouse structures.

[0030] 10. This structure contains less steel, has low cost, and has adjustable dimensions, making it suitable for transportation and installation on narrow rural roads. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a cross-sectional structural schematic diagram of the present invention;

[0032] Figure 2 For the present invention Figure 1 A schematic diagram of the enlarged structure.

[0033] Among them, 1. Concrete floor slab; 2. Steel beam welded floor slab fixing screws; 3. Steel beam welded anchor bars; 4. Steel column welded anchor bars; 5. Steel column; 6. Concrete wall panel; 7. H-shaped steel beam; 8. Welded steel bars; 9. Beam-column hinge. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Embodiment 1:

[0036] like Figure 1-2 As shown, an embodiment of the present invention provides a fully assembled steel-concrete composite structure of a farmhouse, which is assembled by a combination of a concrete floor slab 1, a steel column 5 and an H-shaped steel beam 7. The concrete floor slab 1 is a prefabricated concrete structural member, and the steel column 5 is a prefabricated column steel member. A steel column welding anchor bar 4 is welded on one side of the steel column 5, and a steel beam welding anchor bar 3 and a welded steel bar 8 are respectively welded on one side of the lower end of the H-shaped steel beam 7. A plurality of steel beam welding floor slab fixing screws 2 are welded on the upper flange plate of the H-shaped steel beam 7. A plurality of reserved holes are opened at the upper end of the concrete floor slab 1, and a plurality of steel beam welding floor slab fixing screws 2 pass through the reserved openings and are fixed to the concrete floor slab 1 by tightening nuts. The concrete floor slab 1 is located on the upper flange plate at the upper end of the steel column 5 and the upper end of the H-shaped steel beam 7, and a concrete wall panel 6 is cast and arranged on one side of the steel column 5 and the lower end of the H-shaped steel beam 7.

[0037] A design and assembly method for a fully assembled farmhouse steel-concrete composite structure specifically comprises the following steps:

[0038] Step 1. Design the load-bearing structure

[0039] The original design drawing of the load-bearing structure is formed according to the current reinforced concrete specification, wherein the load-bearing structure includes at least two steel columns 5, an H-shaped steel beam 7 and an integrally cast concrete wall panel 6;

[0040] Step 2. Build the load-bearing structure

[0041] At least two steel columns 5 are installed and fixed vertically, and an H-shaped steel beam 7 is installed between the two steel columns 5 and connected to the steel columns 5 by adopting a steel structure beam-column node-screw hinge method, and then one side of the outer wall of the steel column 5 and the lower end of the H-shaped steel beam 7 are integrally cast with the concrete wall slab 6 through steel column welding anchor bars 4 and steel beam welding anchor bars 3 respectively to form an integrated structure, and a plurality of steel beam welding floor slab fixing screws 2 are welded on the upper end of the H-shaped steel beam 7;

[0042] Since multiple connection holes are provided on the upper end surface and one side of the outer wall of the concrete wall panel 6, the steel column 5 and the H-shaped steel beam 7 are integrally cast with the concrete wall panel 6 through the steel column welding anchor bars 4 and the steel beam welding anchor bars 3 respectively; when the integral casting of the load-bearing structure is carried out, the steel beam welding anchor bars 3 are first arranged in groups of two at the lower end of the H-shaped steel beam 7, and the steel column welding anchor bars 4 are arranged in groups of two at one side of the outer wall of the steel column 5. At this time, the concrete wall panel 6 is integrally cast between the steel column 5 and the H-shaped steel beam 7. During the casting and molding process, the steel column 5, the H-shaped steel beam 7 and the concrete wall panel 6 are cast and molded into one body, and then the steel column 5 and the H-shaped steel beam 7 are screw-hinged through the beam-column hinge 9 of the steel structure beam-column node. At this time, the steel beam welding anchor bars 3 at the lower end of the H-shaped steel beam 7 and the steel column welding anchor bars 4 at one side of the outer wall of the steel column 5 are dislocated to avoid being unable to be installed and used;

[0043] Step 3. Floor construction

[0044] A precast concrete floor slab 1 with pre-set holes is installed on the upper end of the precast bearing structure, and the steel beam welding floor slab fixing screws 2 are passed through the pre-set holes and then assembled and connected with the H-shaped steel beam 7 by tightening the nuts.

[0045] Embodiment 2

[0046] A design and assembly method for a fully assembled farmhouse steel-concrete composite structure specifically comprises the following steps:

[0047] Step 1. Design the load-bearing structure

[0048] The original design drawing of the load-bearing structure is formed according to the current reinforced concrete specification, wherein the load-bearing structure includes at least two steel columns 5 and an H-shaped steel beam 7;

[0049] Step 2. Build the load-bearing structure

[0050] At least two steel columns 5 are installed and fixed vertically, and an H-shaped steel beam 7 is installed between the two steel columns 5 and connected to the steel columns 5 by a steel structure beam-column node-screw hinge method, and then a sealing insulation material is filled between the two steel columns 5 and the H-shaped steel beam 7 to form a sealed space, and a plurality of steel beam welding floor fixing screws 2 are welded on the upper end of the H-shaped steel beam 7;

[0051] The sealing and heat-insulating material between the steel column 5 and the H-shaped steel beam 7 can be filled with glass wool or polystyrene foam. When filling, prefabricated panels are installed at the front and rear ends of the space on the opposite side of the steel column 5 and the H-shaped steel beam 7 for molding and blocking, and are removed after molding and drying;

[0052] Step 3. Floor construction

[0053] A precast concrete floor slab 1 with pre-set holes is installed on the upper end of the precast bearing structure, and the steel beam welding floor slab fixing screws 2 are passed through the pre-set holes and then assembled and connected with the H-shaped steel beam 7 by tightening the nuts.

[0054] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fully assembled farmhouse steel-concrete composite structure, characterized by: The steel-concrete composite structure is assembled by combining a concrete floor (1), a steel column (5) and an H-shaped steel beam (7). The concrete floor (1) is a precast concrete structural member, the steel column (5) is a precast column steel member, a steel column welding anchor bar (4) is welded on one side of the steel column (5), a steel beam welding anchor bar (3) and a welded steel bar (8) are respectively welded on one side of the lower end of the H-shaped steel beam (7), a plurality of steel beam welding floor fixing screws (2) are welded on the upper flange plate of the H-shaped steel beam (7), a plurality of reserved holes are opened on the upper end of the concrete floor (1), a plurality of steel beam welding floor fixing screws (2) pass through the reserved holes and are fixed to the concrete floor (1) by tightening nuts, the concrete floor (1) is located on the upper flange plate of the upper end of the steel column (5) and the upper end of the H-shaped steel beam (7), and a concrete wall panel (6) is cast and arranged on one side of the steel column (5) and the lower end of the H-shaped steel beam (7).

2. A fully assembled farmhouse steel-concrete composite structure according to claim 1, characterized in that: The upper end surface and one side of the outer wall of the concrete wall panel (6) are provided with a plurality of connection holes, and the steel column (5) and the H-shaped steel beam (7) are integrally cast with the concrete wall panel (6) through steel column welding anchor bars (4) and steel beam welding anchor bars (3) respectively to form an integrated structure.

3. The fully assembled steel-concrete composite structure of a farmhouse according to claim 1 is characterized by: The steel column (5) and the H-shaped steel beam (7) are hinged by screws via a beam-column hinge (9) at a steel structure beam-column node.

4. The fully assembled steel-concrete composite structure of a farmhouse according to claim 1 is characterized by: The steel column (5), H-shaped steel beam (7) and concrete wall slab (6) support the concrete floor slab (1) to form a load-bearing structure, and the structural forms of the load-bearing structure include the following: A. A concrete wall panel (6), at least two steel columns (5) and an H-shaped steel beam (7) are assembled to form a load-bearing structure; B. An H-shaped steel beam (7) and at least two steel columns (5) are assembled together to form a load-bearing structure.

5. The fully assembled steel-concrete composite structure of a farmhouse according to claim 4 is characterized in that: When a load-bearing structure of structure A is adopted, the steel column (5), H-shaped steel beam (7) and concrete wall panel (6) jointly bear the load. When a load-bearing structure of structure B is adopted, the steel column (5) and H-shaped steel beam (7) jointly share the load. In this case, a wall panel cast with lightweight concrete is not used between the steel column (5) and the H-shaped steel beam (7).

6. A design and assembly method for a fully assembled farmhouse steel-concrete composite structure, characterized in that: The specific steps include: Step 1. Design the load-bearing structure The original design drawing of the load-bearing structure is formed according to the current reinforced concrete specification, wherein the load-bearing structure includes at least two steel columns (5), an H-shaped steel beam (7) and an integrally cast concrete wall panel (6); Step 2. Build the load-bearing structure At least two steel columns (5) are vertically installed and fixed, and an H-shaped steel beam (7) is installed between the two steel columns (5) and connected to the steel columns (5) by adopting a steel structure beam-column node-screw hinge method, and then one side of the outer wall of the steel column (5) and the lower end of the H-shaped steel beam (7) are integrally cast with the concrete wall slab (6) through steel column welding anchor bars (4) and steel beam welding anchor bars (3) to form an integrated structure, and a plurality of steel beam welding floor slab fixing screws (2) are welded to the upper end of the H-shaped steel beam (7); Step 3. Floor construction A prefabricated cast concrete floor slab (1) with a pre-reserved hole is installed on the upper end of the prefabricated cast bearing structure, and a steel beam welding floor slab fixing screw (2) is passed through the pre-reserved hole and then the concrete floor slab (1) and the H-shaped steel beam (7) are assembled and connected by tightening nuts.

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