A method for constructing a prefabricated concrete frame structure farm house
By combining masonry blocks with precast reinforced concrete beams and cast-in-place concrete columns, the problems of complex construction and poor waterproofing performance in rural housing construction in existing technologies have been solved, achieving convenient and efficient construction and improved quality in rural housing construction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHIJIAZHUANG YONGCHENG CONSTRUCTION ENGINEERING CO LTD
- Filing Date
- 2023-11-07
- Publication Date
- 2026-07-07
AI Technical Summary
Existing prefabricated concrete buildings have problems in rural housing construction, such as heavy components, difficult installation, high cost, poor waterproofing performance, and difficulty in solving cracking problems. They cannot meet the diverse design needs of rural houses, and the construction is complicated and inefficient.
The method of using masonry blocks and precast reinforced concrete beams to form a frame structure, combined with cast-in-place concrete columns, simplifies the construction process and improves convenience and waterproof performance.
It has made rural house construction more convenient and efficient, solved the waterproofing problem, improved the overall construction quality and reduced costs.
Smart Images
Figure CN117266567B_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of rural housing construction technology, specifically relating to a method for constructing prefabricated concrete frame structure farmhouses. Background Technology
[0002] Currently, most prefabricated concrete buildings use large PC components, which are heavy and require large hoisting equipment for installation, making them unsuitable for rural housing construction. Rural housing designs are inconsistent, so prefabricated PC components struggle to meet diverse design needs, leading to increased production difficulties, higher costs, and hindering mass production, thus limiting the industrialization of the construction industry. Furthermore, connecting components requires cast-in-place concrete, necessitating formwork erection and dismantling, increasing labor costs and on-site work, and reducing the overall assembly rate. Some buildings also use light steel structures, which suffer from poor corrosion and fire resistance, and a short lifespan.
[0003] Furthermore, prefabricated PC component buildings require secondary pouring and formwork for secondary joints, making waterproofing difficult. Coupled with the complex conditions of rural homesteads, some joints are simply impossible to waterproof, resulting in low-quality houses. Since prefabricated PC joints typically use welding, bolting, or cast-in-place concrete, and the joints are straight cuts, cracking remains a problem, thus exacerbating waterproofing issues. Some methods use adhesive strips at the joints, but due to the different lifespans of concrete walls and adhesive strips, the strips age, leading to leaks at the joints. Solving these problems requires extensive work, increasing costs and not guaranteeing complete solutions. Therefore, it is necessary to improve existing prefabricated PC component building methods to make rural housing construction more convenient and efficient. Summary of the Invention
[0004] To address the problems existing in the prior art, this invention provides a method for constructing prefabricated concrete frame structure farmhouses. The method involves interlocking masonry blocks with precast reinforced concrete beams, and setting cast-in-place concrete columns between the blocks. By splicing small masonry blocks and precast reinforced concrete beams to form a frame structure, the convenience of rural housing construction is improved.
[0005] To achieve the above objectives, the technical solution of the present invention is:
[0006] A method for constructing a prefabricated concrete frame structure farmhouse includes the following steps:
[0007] S1: Install precast reinforced concrete beams on the foundation slab of the house, and reserve column-shaped frame steel bars at the connection point of every two precast reinforced concrete beams. Install the blocks in this way, and use the grooves at the bottom of the blocks to hold the precast reinforced concrete beams. The grooves on the left and right sides of the blocks hold the reserved column-shaped frame steel bars.
[0008] S2: Cast the pre-reserved column-shaped frame steel bars in the block groove on site to form a cast-in-place concrete column;
[0009] S3: Install a precast reinforced concrete beam in the groove above the block installed in step S1, and then install the block on top of the precast reinforced concrete beam, and install it upwards in sequence. At the door and window openings, install steel mesh in the groove on the side of the block, and then apply a layer of sand and mortar.
[0010] S4: Construct to the building elevation in sequence according to the above method, and tie the ring beam reinforcement in the groove above the top layer of blocks;
[0011] S5: Finally, install the concrete composite floor slab or the formwork-free steel truss slab, tie the top slab reinforcement and the ring beam connecting reinforcement, and pour the top slab and ring beam concrete together on site.
[0012] Preferably, the blocks completely enclose the ring beam, the precast reinforced concrete beam, and the cast-in-place concrete column.
[0013] Preferably, one or more blocks are provided between every two reserved column-shaped frame reinforcement bars.
[0014] Preferably, a block is set between every two reserved column-shaped frame steel bars, and the block has grooves on its four sides (top, bottom, left, and right). The precast reinforced concrete beam is placed in the top and bottom grooves of the block and fits into the grooves. The reserved column-shaped frame steel bars are set between the left and right grooves of the two blocks.
[0015] Preferably, two or more blocks are provided between every two reserved column-shaped frame steel bars. The blocks are flat on the surface where they connect with each other, and have a concave groove structure on the surface where they connect with the precast reinforced concrete beam or cast-in-place concrete column.
[0016] Preferably, the height of the upper and lower slots of the block is the same as the height of the precast reinforced concrete beam.
[0017] Preferably, the groove below the block is capable of accommodating the precast reinforced concrete beam.
[0018] Preferably, the shape of the block groove is one of square, triangle or semicircle, and the shape of the ring beam is one of square or circle.
[0019] Preferably, the precast reinforced concrete beam is a concrete structure with internal reinforcing bars, and the internal reinforcing bars extend beyond both ends of the precast reinforced concrete beam.
[0020] Preferably, the reserved column frame reinforcement includes a column frame structure built by vertical reinforcement and stirrups, and the reinforcement at both ends of the precast reinforced concrete beam extends into the reserved column frame reinforcement; the reserved column frame reinforcement extends upward into the top slab and the tied ring beam reinforcement, and the precast reinforced concrete beam is fixed by cast-in-place concrete.
[0021] The beneficial effects of this invention are:
[0022] 1. This application adopts precast reinforced concrete beams and self-insulating blocks with grooves. A cast-in-place concrete column without formwork is set between two self-insulating blocks. The precast reinforced concrete beams and the grooves of the self-insulating blocks fit together to construct rural houses. This simplifies the existing PC component prefabricated building method, changes large wall panels to small blocks, and changes large frame beams and frame column structures to small close beam and close column structures. It can be assembled manually during construction, improving the convenience of rural house construction.
[0023] 2. In the frame structure system of the present invention, although secondary pouring is used at the joint between the cast-in-place concrete column and the block, the concrete pouring is completed in the grooves on the left and right sides of the block. The joint of the outer block and the inner cast-in-place structure are not at the same joint, which completely prevents water penetration and solves the problem of waterproofing at the pouring joint. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the invention.
[0025] Figure 2 This is a cross-sectional schematic diagram of the invention.
[0026] Figure 3 This is a schematic diagram of the connection between a precast reinforced concrete beam and a cast-in-place concrete column.
[0027] Figure 4 This is a schematic diagram of the connection between the masonry blocks and the cast-in-place concrete column.
[0028] Figure 5 This is a schematic diagram of the door / window node processing.
[0029] Figure 6 This is a schematic diagram of a square precast reinforced concrete beam or ring beam.
[0030] Figure 7 This is a schematic diagram of a circular precast reinforced concrete beam.
[0031] Figure 8 This is a side view of a square-grooved block. Figure 1 .
[0032] Figure 9 This is a side view of a block with a triangular groove. Figure 1 .
[0033] Figure 10 This is a side view of a block with a circular groove. Figure 1 .
[0034] Figure 11 This is a side view of a square-grooved block. Figure 2 .
[0035] Figure 12 This is a side view of a block with a triangular groove. Figure 2 .
[0036] Figure 13 This is a side view of a block with a circular groove. Figure 2 .
[0037] Figure 14 This is a schematic diagram of the connection between the masonry blocks and the precast reinforced concrete beam.
[0038] Figure 15 This is a schematic diagram of the block installation structure in Example 2.
[0039] Figure 16 This is the first block structure in Example 2.
[0040] Figure 17 This is the second block structure in Example 2.
[0041] Figure 18 It is block structure three in Example 2.
[0042] Figure 19 This is block structure four in Example 2.
[0043] Figure 20 This is block structure four in Example 2.
[0044] In the diagram: 1. Block; 2. Precast reinforced concrete beam; 3. Ring beam; 4. Columnar frame reinforcement; 5. Building foundation; 6. Reinforced concrete roof slab; 7. Sloping surface. Detailed Implementation
[0045] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.
[0046] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.
[0047] Furthermore, in this invention, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0048] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two elements or the interaction between two elements, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.
[0049] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.
[0050] Example 1
[0051] See Figures 1 to 4 A method for constructing prefabricated concrete frame structure farmhouses includes the following steps:
[0052] S1: Install precast reinforced concrete beams 2 on the foundation 5 of the building, and reserve column-shaped frame steel bars 4 at the connection points of every two precast reinforced concrete beams 2. Install blocks 1 in this manner, with one block placed between every two reserved column-shaped frame steel bars. The blocks have grooves on their four sides (top, bottom, left, and right). The precast reinforced concrete beams are placed in the top and bottom grooves of the blocks and fit into the grooves. The reserved column-shaped frame steel bars are placed between the left and right grooves of two blocks. The bottom groove of the block 1 is used to clamp the precast reinforced concrete beam 2, and the left and right grooves of the two blocks 1 are used to clamp the reserved column-shaped frame steel bars 4.
[0053] The aforementioned block 1 completely encloses the precast reinforced concrete beam 2 and the cast-in-place concrete column. The block is an insulated block, with grooves on its four sides (top, bottom, left, and right). The block dimensions are 900mm × 240mm × 400mm, with a groove width of 140mm and a height of 70mm. Other dimensions for the block 1 and grooves can be selected according to actual needs; this application does not impose specific limitations on the dimensions of the block 1. The block used in this invention has two structures: Structure 1 has the lower groove and upper groove at the same height; Structure 2 has the upper groove height being half the lower groove height. In the aforementioned prefabricated concrete frame structure, the precast reinforced concrete beam 2 is installed on the foundation slab, and the block of Structure 2 is installed above the precast reinforced concrete beam. The lower groove of the block can accommodate the precast reinforced concrete beam, and the upper groove of the block can accommodate half of the precast reinforced concrete beam. A precast reinforced concrete beam 2 is installed at the groove above the block. The shape of the precast reinforced concrete beam 2 matches the groove, with a length of 760mm and a height of 140mm.
[0054] S2: The reserved column-shaped frame steel bars 4 in the block groove are poured on site to form a cast-in-place concrete column;
[0055] The precast reinforced concrete beam is a concrete structure with internal reinforcing bars, and the reinforcing bars extend beyond both ends of the precast reinforced concrete beam (see...). Figure 6 and Figure 7 The reserved column-shaped frame reinforcement includes a column-shaped frame structure built of vertical steel bars and stirrups. The steel bars at both ends of the precast reinforced concrete beam extend into the reserved column-shaped frame reinforcement, and the precast reinforced concrete beam is fixed by cast-in-place concrete. The concrete column can be poured in one go, or it can be poured in one go after several floors have been built.
[0056] S3: Install a precast reinforced concrete beam 2 in the groove above the block 1 installed in step S1, and then install the block 1 of structure one above the precast reinforced concrete beam 2, and install them upwards in sequence. Install steel mesh in the groove on the side of the block at the door and window openings, and then apply a layer of sand mortar.
[0057] The height of the upper and lower grooves of the block described above is consistent with the height of the precast reinforced concrete beam. That is, the grooves on both sides of the block completely enclose the precast reinforced concrete beam. Blocks and precast reinforced concrete beams are installed sequentially upwards. When encountering door or window openings, steel mesh is installed inside the side grooves of the block, followed by a layer of mortar. The width of the door or window openings is designed according to the dimensions of the block (see [reference]). Figure 5 ).
[0058] S4: Construct to the building elevation in sequence according to the above method, and tie the ring beam reinforcement in the groove above the top layer of blocks;
[0059] When installing the top layer of blocks, install the blocks of structure two on the side with the deeper groove, tie the ring beam reinforcement, and then pour concrete to form the ring beam.
[0060] S5: Finally, install the concrete composite floor slab or the formwork-free steel truss slab, tie the top slab reinforcement and the ring beam connecting reinforcement, and the reserved column frame reinforcement extends upward into the top slab and the tied ring beam reinforcement, and pour the top slab and ring beam concrete together on site.
[0061] Furthermore, the shape of the block groove is one of square, triangle or semicircle, and the shape of the ring beam is one of square or circle.
[0062] The groove of the block 1 can be square, triangular, or semi-circular, or other shapes. Setting the groove as triangular or semi-circular allows it to gradually thicken inwards along the edge, thus enhancing its strength and preventing breakage during transportation. Preferably, the precast reinforced concrete beam 2 is square or circular, and the square or circular precast reinforced concrete beam 2 can correspond to square (triangular) or semi-circular grooves, respectively. The groove of the block 1 described above has two specifications; the first is a symmetrical upper and lower groove structure (see...). Figure 8-10 The second type has a square, triangular, or semi-circular upper slot and a square lower slot (see [link]). Figure 11-13 The second type of block 1 is used on the foundation or when constructing a reinforced concrete roof slab 6 at the top of a building, where the block 1 completely encloses the first-layer precast reinforced concrete beam 2 and the ring beam 3 at the top. The block 1 described above has inclined surfaces 7 at the four corners of its groove to increase the cross-sectional area at the joints and improve overall stability (see [link]). Figure 14 ).
[0063] The precast reinforced concrete beam 2 described above is a precast reinforced concrete beam containing internal reinforcing bars, with the reinforcing bars protruding outwards at both ends of the precast reinforced concrete beam 2. The reinforcing bars at both ends of the precast reinforced concrete beam 2 extend into the reserved column-shaped frame reinforcing bars of the cast-in-place concrete column. The reserved column-shaped frame reinforcing bars extend upwards into the top slab and the tied ring beam reinforcing bars. The precast reinforced concrete beam is fixed by the cast-in-place concrete, and the reinforcing bars are fixed in the cast-in-place concrete column, thus playing an anchoring role.
[0064] Example 2
[0065] See Figure 15-20 This embodiment is basically the same as embodiment 1, except that there are two or more blocks 1 between the upper and lower precast reinforced concrete beams 2 or the left and right reserved column-shaped frame steel bars. The surface of the block 1 where the blocks are connected is set as a plane, and the surface where the blocks are connected to the precast reinforced concrete beams 2 or the cast-in-place concrete columns 4 is set as a concave groove structure.
[0066] In actual construction, to facilitate construction and reduce the weight of the blocks, large blocks are replaced by splicing together multiple smaller blocks. When there are two blocks, a flat surface is provided on the contact surface between the blocks to facilitate construction, and a groove is provided on the surface where the blocks connect to precast reinforced concrete beams or cast-in-place concrete columns. When there are three, four, or more blocks, the block structure can be: upper and lower grooves and left and right flat surfaces; upper and lower flat surfaces and left and right grooves; three grooves and one flat surface; two grooves and two flat surfaces; three flat surfaces and one groove; or four flat surfaces, etc.
[0067] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.
Claims
1. A method for constructing prefabricated concrete frame structure farmhouses, characterized in that, Includes the following steps: S1: Install precast reinforced concrete beams on the foundation slab of the building, and reserve column-shaped frame reinforcement at the connection points of every two precast reinforced concrete beams. Install blocks in this manner, with the groove at the bottom of the block securing the precast reinforced concrete beam, and the grooves on the left and right sides of the block securing the reserved column-shaped frame reinforcement. The reinforcement at both ends of the precast reinforced concrete beam extends into the reserved column-shaped frame reinforcement of the cast-in-place concrete column. The blocks completely enclose the ring beam, the precast reinforced concrete beam, and the cast-in-place concrete column. A block is placed between every two reserved column-shaped frame reinforcements, with grooves on the top, bottom, left, and right sides of the block. The precast reinforced concrete beam is placed in the top and bottom grooves of the block and fits into the grooves. The reserved column-shaped frame reinforcement is placed between the left and right grooves of two blocks. S2: Cast the pre-reserved column-shaped frame steel bars in the block groove on site to form a cast-in-place concrete column; S3: Install a precast reinforced concrete beam in the groove above the block installed in step S1, and then install the block on top of the precast reinforced concrete beam, and install it upwards in sequence. At the door and window openings, install steel mesh in the groove on the side of the block, and then apply a layer of sand and mortar. S4: Construct to the building elevation in sequence according to the above method, and tie the ring beam reinforcement in the groove above the top layer of blocks; S5: Finally, install the concrete composite floor slab or the formwork-free steel truss slab, tie the top slab reinforcement and the ring beam reinforcement, and the reserved column frame reinforcement extends upward into the top slab reinforcement and the ring beam reinforcement, and pour the top slab and ring beam concrete together on site.
2. The method for constructing prefabricated concrete frame structure farmhouses according to claim 1, characterized in that, Two or more blocks are set between every two reserved column-shaped frame steel bars. The blocks are set as flat surfaces on the surfaces where they connect to each other, and as recessed groove structures on the surfaces where they connect to precast reinforced concrete beams or cast-in-place concrete columns.
3. The method for constructing prefabricated concrete frame structure farmhouses according to claim 1, characterized in that, The height of the upper and lower slots of the block is the same as the height of the precast reinforced concrete beam.
4. The method for constructing prefabricated concrete frame structure farmhouses according to claim 1, characterized in that, The slot below the block can accommodate the precast reinforced concrete beam.
5. The method for constructing prefabricated concrete frame structure farmhouses according to claim 1, characterized in that, The shape of the block groove is one of square, triangle or semi-circle, and the shape of the ring beam is one of square or circle.
6. The method for constructing prefabricated concrete frame structure farmhouses according to any one of claims 1, characterized in that, The precast reinforced concrete beam is a concrete structure with internal reinforcing bars, and the internal reinforcing bars extend beyond both ends of the precast reinforced concrete beam.
7. The method for constructing prefabricated concrete frame structure farmhouses according to claim 6, characterized in that, The reserved column frame reinforcement includes a column frame structure built by vertical reinforcement and stirrups. The reinforcement at both ends of the precast reinforced concrete beam extends into the reserved column frame reinforcement. The reserved column frame reinforcement extends upward into the top slab and the tied ring beam reinforcement, and the precast reinforced concrete beam is fixed by cast-in-place concrete.