Large-span beam and column structure for fabricated building and construction technology

Abstract

The large-span beam and column structure mainly comprises a pile base, a ground pile, a concrete column and a concrete beam, the ground pile is buried underground, the pile base is installed on the ground pile, the pile base and the ground pile are fixedly installed together through bolts, and the concrete column and the concrete beam are also fixed through bolts. The connecting structure has the advantages that the column heads or the bearing seats are pre-arranged at the two ends and the middle position of the whole column and can serve as connecting structures, the bearing seats can improve the structural strength of the column and serve as middle transition parts of the column, the situation that the structural strength is reduced due to the fact that only a reinforcement cage is arranged in the overlong column is avoided, and the bearing seats and nearby beams can form connecting joints conveniently; the bearing seat is simple in structure and convenient to assemble or weld, the bearing seat and the close concrete beam are assembled together through the connecting plate, all parts can be conveniently combined, concrete can be conveniently poured at the connecting joint, and it is guaranteed that the integrity and the structural strength of the connecting joint are sufficient.

Description

Technical Field

[0001] The present invention relates to the technical field of prefabricated buildings, and in particular to a large-span beam and column structure and a construction process for prefabricated buildings. Background Art

[0002] Prefabricated buildings refer to buildings that transfer a large amount of on-site work in traditional construction methods to factories, where building components and accessories (such as floor slabs, wall panels, stairs, balconies, etc.) are processed and manufactured in factories, transported to construction sites, and assembled and installed on-site through reliable connection methods, saving construction time and achieving construction standardization and unification. Prefabricated buildings mainly include prefabricated concrete structures, steel structures, modern wooden structures, etc.

[0003] Prefabricated concrete buildings can not only achieve process standardization and unification, but also can be maintained in the construction workshop to achieve the best performance of concrete, which is not achievable in field construction. In prefabricated concrete buildings, there are beams and columns with long spans, which are only supported by steel cages inside, and the node positions are only supported and loaded by steel bars. The bearing capacity at the node positions is weak, which affects the structural strength, and it is inconvenient to connect and pour concrete at the node positions of beams and columns. Based on this, the present application proposes a large-span beam and column structure and construction process for prefabricated buildings to solve the above problems. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the present invention provides a large-span beam and column structure and a construction process for prefabricated buildings to solve the problems mentioned in the background technology and overcome the deficiencies in the prior art.

[0006] (II) Technical solution

[0007] In order to achieve the above purpose, this application adopts the following technical solutions:

[0008] A large-span beam and column structure for prefabricated buildings, characterized in that it includes a pile seat, a ground pile, a concrete column and a concrete beam, the ground pile being buried under the ground, the pile seat being installed on the ground pile, the lower end of the concrete column being prefabricated with a rectangular column head, the rectangular column head being sleeved on the pile seat, at least one first bearing seat being arranged in the middle of the concrete column, a second bearing seat being arranged at the upper end of the concrete column, at least one rib plate being installed outside the first bearing seat and the second bearing seat, both ends of the concrete beam being prefabricated with an I-shaped column head, which is installed on the rib plate through a connecting plate to form a whole with the concrete column, the rectangular column head, the first bearing seat and the second bearing seat being assembled through a first steel cage and prefabricated together through concrete, the I-shaped column head being assembled with the second steel cage and prefabricated together through concrete.

[0009] Preferably, the first bearing seat and the second bearing seat are both rectangular as a whole, with a column tube installed at the center, the outside of the rib plate and the I-shaped column head are provided with a plurality of uniformly arrayed through grooves, the outside of the connecting plate is provided with a plurality of uniformly arrayed notches, and the rib plate and the I-shaped column head are connected by bolts passing through the through grooves and notches.

[0010] Preferably, a plurality of through holes are opened at the four corners below the pile seat, and studs are pre-installed at the four corners inside the ground pile, which penetrate the plurality of through holes and have nuts threadedly installed on the outside, so that the pile seat and the ground pile are fixed together by bolts.

[0011] Preferably, corresponding main reinforcement holes are arranged on the four sides of the rectangular column capital, the first bearing seat and the second bearing seat, the eight main reinforcements of the first steel cage pass through the rectangular column capital, the first bearing seat and the second bearing seat in sequence, the four main reinforcements of the second steel cage are welded to the four corners of the I-shaped column capital, and stirrups are also tied on the main reinforcements of the first steel cage and the second steel cage, the spacing between the stirrups is 15 cm, and they are densely tied near the column capital or the bearing seat with a spacing of 5 cm.

[0012] Preferably, the column tube extends beyond the first bearing seat by not less than 15 cm above and below, the lower part of the column tube extends beyond the second bearing seat by not less than 15 cm, the upper part is flush with the second bearing seat, and the rectangular column capital and I-shaped column capital precast in concrete are not less than 15 cm in length.

[0013] Preferably, the pile seat is rectangular as a whole, and consists of two upper and lower rectangular plates, multiple support plates and a socket connector installed at the center. The rectangular column head consists of two upper and lower assembly plates, multiple reinforcing rib plates and a square tube installed in the middle position, and the square tube is fitted onto the socket connector.

[0014] Preferably, the rectangular plate on the upper part of the pile seat and the assembly plate on the lower part of the rectangular column head are both provided with corresponding screw holes, and the square tube is outer-mounted on the socket connector and the pile seat and the rectangular column head are fixed by bolts.

[0015] Preferably, concrete is cast in situ at the connection between the concrete column and the concrete beam, and at the connection between the rectangular column head and the pile seat, so as to wrap all the exposed steel structures.

[0016] The present application also provides a construction process for a large-span beam and column structure for an assembled building, which is characterized by comprising the following steps:

[0017] S1. Pre-place concrete piles at appropriate locations in the foundation pit, and pre-place multiple studs at the four corners of the piles;

[0018] S2. Install the pile seat on the ground pile and use nuts to lock and fix it in place;

[0019] S3, arranging a steel cage between the rectangular column head, the first bearing seat, and the second bearing seat, and supporting the shell plate outside thereof, and then pouring concrete, and after removing the formwork, obtaining a concrete column;

[0020] S4. Arrange a steel cage between two I-shaped column heads and support the shell plate outside the cage, then pour concrete, and after removing the mold, obtain a concrete beam;

[0021] S5. Hoist multiple concrete columns onto corresponding pile seats, fix them together with bolts, and level the concrete columns;

[0022] S6. Hoist the concrete beam to the outside of the first bearing seat or the second bearing seat of the two concrete columns, and connect the I-shaped column head to the first bearing seat or the second bearing seat through bolts and connecting plates;

[0023] S7. Support the shell plates at the joints of the above components and pour concrete into them. Remove the mold after solidification.

[0024] The present application also provides an assembled building constructed by the above-mentioned large-span beam and column structure for assembled buildings and the construction process thereof.

[0025] (III) Beneficial effects

[0026] Due to the adoption of the above technical solution, the beneficial effects of this application are:

[0027] 1. The prefabricated building uses a large-span beam and column structure. The two ends and the middle of the entire column are pre-installed with column heads or bearing seats. Both can be used as connecting structures between beams or columns, and the bearing seats can improve the structural strength of the column. As the middle transition part of the column, it avoids the reduction of structural strength caused by only having a steel cage in a too long column. It is also convenient to form a connection node with the nearest beam, which is convenient for assembly or welding. The bearing seat and the nearby concrete beams are assembled together through a connecting plate, which is convenient for combining the various components and pouring concrete at the connection node to ensure that the integrity and structural strength of the connection node are sufficient.

[0028] 2. The construction process of the large-span beam and column structure for prefabricated buildings is to cast concrete piles at appropriate positions in advance, in which studs are pre-installed, install the pile seat on the pile, screw nuts on the studs, install the column head on the pile seat, and install eight steel bars on the column head, install two or more bearing seats on the eight steel bars, and fix them together by welding, and tie a plurality of stirrups outside the eight steel bars to form a steel cage, support the shell plate on the outside of the steel cage, and then pour concrete into it to form a concrete column, form a connection node at the bearing seat, install a connecting plate between the bearing seat and the adjacent concrete beam, and the components are fixed together by bolts. The shell plate is supported at the connection and concrete is poured, so that the beam and column are combined together to form a whole, and the structural strength of the structure is sufficient.

[0029] 3. The structure and construction process provided by this application realize the indoor processing of components, ensure the controllable quality, unification and standardization of components, enable indoor concrete maintenance, improve the structural strength and bearing capacity, enhance the seismic performance of the structure, and during construction, as long as the ground piles are set in advance, the overall construction can be completed quickly, with high efficiency, labor saving and cost reduction. In today's society where there is a lack of labor, the cost of building a house can be greatly reduced, especially with high efficiency and good safety, which has a strong value for promotion and application and also produces great economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the internal overall structure of the present invention;

[0031] Figure 2 For the present invention Figure 1 A schematic diagram of the front view structure of

[0032] Figure 3 It is a schematic diagram of the overall structure of the pile seat in the present invention;

[0033] Figure 4 It is a schematic diagram of the overall structure of the rectangular column head in the present invention;

[0034] Figure 5 It is a schematic diagram of the overall structure of the first bearing seat in the present invention;

[0035] Figure 6 It is a schematic diagram of the overall structure of the I-shaped column head in the present invention;

[0036] Figure 7 It is a schematic diagram of the overall structure after the concrete pouring of the present invention is completed.

[0037] In the figure: 1-pile seat, 1a-rectangular plate, 1b-support plate, 1c-socket connector, 2-rectangular column head, 2a-assembly plate, 2b-square tube, 2c-reinforcement rib plate, 3-first bearing seat, 3a-mounting plate, 3b-column tube, 3c-rib plate, 3d-reinforcement plate, 4-I-shaped column head, 5-second bearing seat, 6-first steel cage, 7-second steel cage, 8-ground pile, 9-stud, 10-connecting plate, 11-notch, 12-through groove, 13-through hole. DETAILED DESCRIPTION

[0038] 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.

[0039] See also Figure 1-7 The large-span beam and column structure for prefabricated buildings provided in the present application includes a pile seat 1, a ground pile 8, a concrete column and a concrete beam. The ground pile 8 is buried under the ground, the pile seat 1 is installed on the ground pile 8, and a rectangular column head 2 is prefabricated at the lower end of the concrete column, and the rectangular column head 2 is sleeved on the pile seat 1.

[0040] The pile seat 1 is rectangular as a whole, and consists of two upper and lower rectangular plates 1a, multiple support plates 1b and a socket connector 1c. The multiple support plates 1b are located around the two rectangular plates 1a, and the socket connector 1c is located at the center between the two rectangular plates 1a. The various components are fixed together by welding to ensure that they are firmly assembled.

[0041] The rectangular column head 2 is composed of two assembly plates 2a arranged up and down, a plurality of reinforcing rib plates 2c and a square tube 2b, and the square tube 2b is sleeved on the socket connector 1c. The square tube 2b is located at the center between the two assembly plates 2a, and the plurality of reinforcing rib plates 2c are located around the two assembly plates 2a, and the plurality of components are fixed together by welding to ensure that the structural strength is sufficient. The rectangular plate 1a on the upper part of the pile seat 1 and the assembly plate 2a on the lower part of the rectangular column head 2 are both provided with corresponding screw holes. After the square tube 2b is sleeved on the socket connector 1c, the pile seat 1 and the rectangular column head 2 are fixed by bolts. Bolt fixing is convenient for the staff to operate on the one hand, and enhances the connection stability on the other hand compared with only sleeve setting.

[0042] According to the needs of the building structure, one or more first bearing seats 3 are selected to be set in the middle of the concrete column, and a second bearing seat 5 is set at the upper end of the concrete column. At least one rib plate 3c is installed on the outside of the first bearing seat 3 and the second bearing seat 5. The specific number of installations can be determined according to the number of concrete beams that need to be installed. If it is mass production and the number of concrete beams is uncertain, they can be set all around to meet the normalization needs. Both ends of the concrete beam are prefabricated with an I-shaped column head 4, which is installed on the rib plate 3c through a connecting plate 10 to form a whole with the concrete column. The rectangular column head 2, the first bearing seat 3, and the second bearing seat 5 are assembled through the first steel cage 6 and prefabricated together with concrete to form a concrete column. The connection of the structure can ensure that the structural strength of the concrete column is sufficient and improve its bearing capacity. The I-shaped column head 4 is assembled with the second steel cage 7 and prefabricated together with concrete to form a concrete beam.

[0043] In the present application embodiment:

[0044] Concrete is also cast in situ at the connection between the concrete column and the concrete beam, and at the connection between the rectangular column head 2 and the pile seat 1, to wrap all the exposed steel structures. On the one hand, it is to prevent corrosion of the steel structure, and on the other hand, it is to make it a whole and enhance the overall stability of the structure. In this application, C30 concrete is used for the concrete column and concrete beam, and C60 is used for the cast-in-situ concrete at the connection, so as to increase the strength of the connection and be more conducive to structural stability.

[0045] In the present application embodiment:

[0046] See also Figure 1 , 2 , 5 and 6, the first bearing seat 3 and the second bearing seat 5 are both rectangular in shape, with a column tube 3b installed at the center, multiple uniform arrays of through grooves 12 are opened on the outside of the rib plate 3c and the I-shaped column head 4, and multiple uniform arrays of notches 11 are opened on the outside of the connecting plate 10. The rib plate 3c and the I-shaped column head 4 are connected by bolts passing through the through grooves 12 and the notches 11. The first bearing seat 3 and the second bearing seat 5 are both composed of two upper and lower mounting plates 3a, a column tube 3b, multiple rib plates 3c and a reinforcing plate 3d. The column tube 3b is located at the center between the two mounting plates 3a, and multiple rib plates 3c and reinforcing plates 3d are located around the two mounting plates 3a. Multiple components are fixed together by welding, and the welding positions can all be on the outside, which is convenient for staff to operate. In addition, the installation position of the connecting plate 10 is located between the two mounting plates 3a, which provides support for the connecting plate 10 and enhances the structural stability. By providing the through slots 12 and notches 11 in an array, it is convenient to adjust the installation position and the spacing between components. When the structure has a slight deviation and does not affect the overall strength, the structure can be fine-tuned by adjusting the position of the installation bolts.

[0047] In the present application embodiment:

[0048] See also Figure 1 , 2 3, a plurality of through holes 13 are provided at the four corners below the pile seat 1, and the through holes 13 are provided on the rectangular plate 1a at the bottom. Studs 9 are pre-installed at the four corners inside the ground pile 8, which penetrate through the plurality of through holes 13, and nuts are threadedly installed on the outside, so that the pile seat 1 and the ground pile 8 are fixed together by bolts. The bolt installation method reduces the construction difficulty of the project on the basis of meeting the strength and bearing capacity as long as the strength of the selected bolts meets the requirements.

[0049] In the present application embodiment:

[0050] See also Figure 1 , 2 , 4 and 5, the four sides of the rectangular column 2, the first bearing seat 3 and the second bearing seat 5 are all provided with corresponding main reinforcement holes, and the 8 main reinforcements of the first steel cage 6 pass through the rectangular column 2, the first bearing seat 3 and the second bearing seat 5 in sequence, wherein the main reinforcement holes of the rectangular column 2 are arranged on the upper assembly plate 2a, which can realize the connection between the reinforcement and the rectangular column 2, and does not affect the connection between the lower assembly plate 2a and the shaped plate 1a. The 8 main reinforcements completely wrap the component and are tightly connected with the rectangular column 2, the first bearing seat 3 and the second bearing seat 5. Compared with the 4 main reinforcements of the conventional column, the tensile strength of the structure is enhanced and the structural bearing capacity is increased. The 4 main reinforcements of the second steel cage 7 are welded to the four corners of the I-shaped column 4. Stirrups are also tied to the main reinforcements of the first steel cage 6 and the second steel cage 7. The spacing between the stirrups is 15cm, and the positions close to the column or the bearing seat are densely tied with a spacing of 5cm. Generally, the seventh stirrup close to the column or the bearing seat is tightly tied. The joints have the highest requirements on the bearing capacity of the structure. The bearing capacity can be increased by increasing the density of the stirrups.

[0051] In the present application embodiment:

[0052] The length of the column tube 3b extending from the top to the bottom of the first bearing seat 3 is not less than 15 cm, the length of the lower part of the column tube 3b extending from the second bearing seat 5 is not less than 15 cm, and the upper part is flush with the second bearing seat 5. The length of the rectangular column head 2 and the I-shaped column head 4 precast in the concrete is not less than 15 cm. A length of not less than 15 cm is reserved to fully connect the column head, the bearing seat and the concrete to avoid cracking and damage at the connection.

[0053] The present application also provides a construction process for a large-span beam and column structure for an assembled building, which is characterized by comprising the following steps:

[0054] S1, digging a foundation pit, and pre-pile a pile 8 made of concrete at a suitable position of the foundation pit, pre-pile a plurality of studs 9 at the four corners inside the pile, and then bury the pile 8 with earthwork to expose the studs 9;

[0055] S2, placing the processed pile seat 1 on the ground pile 8, passing the stud 9 through the pile seat 1, and screwing a nut on the outside of the stud 9 to lock and fix it;

[0056] S3, determine the number of first bearing seats 3 according to needs, arrange the rectangular column head 2, the first bearing seat 3, and the second bearing seat 5 in sequence, insert 8 steel bars into the main reinforcement holes of the above components, adjust the positions and perform welding positioning to avoid position deviation, then tie multiple stirrups in a uniform array on the outside to form a first steel cage 6, support the shell plate on the outside of the assembly, and pour concrete into it. After the concrete solidifies, remove the shell plate to obtain a concrete column;

[0057] S4, arranging a steel cage between two I-shaped column heads 4, and after determining the position, welding four steel bars at the four corners outside the I-shaped column head 4, and then tying a plurality of stirrups in a uniform array outside thereof to form a second steel cage 7, and supporting the shell plate outside thereof, and pouring concrete into it, and after the concrete solidifies, removing the shell plate to obtain a concrete beam;

[0058] S5, hoisting the concrete column onto the pile seat 1, and using bolts to combine the rectangular column head 2 with the pile seat 1, and leveling them, the concrete column is supported by the ground pile 8 and the pile seat 1 to ensure that the concrete column can be placed vertically;

[0059] S6, hoisting the concrete beam to the outside of the first bearing seat 3 or the second bearing seat 5 of the two concrete columns, and connecting the I-shaped column head 4 to the first bearing seat 3 or the second bearing seat 5 through bolts and connecting plates 10;

[0060] S7. Support the shell plate at the connection between the beam, column or column and pile 8, and pour concrete into it. Use high-pressure grouting to ensure that the concrete is thoroughly filled so that the connection node forms a whole. Due to the presence of multiple steel parts, the strength and bearing capacity of the connection node can be guaranteed to be sufficient.

[0061] In the present application embodiment:

[0062] After removing the shell plate to obtain the concrete beams and columns, the concrete beams and columns need to be covered with curing film and steam is passed through for steam curing. The steam curing time is not less than 4 hours and the steam temperature is 100°C. The spacing of the stirrups on the steel cage is 15cm. There are more stirrups near the connection nodes. Generally, they are tightly tied from the seventh stirrup near the column head or the bearing seat, and the spacing can be about 5cm to ensure sufficient strength at the connection nodes.

[0063] The present application also provides an assembled building constructed by the above-mentioned large-span beam and column structure and construction process for assembled buildings. The assembled building can be used in both residential buildings and industrial plants.

[0064] 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. Large-span beam and column structures for prefabricated buildings, characterized by: The invention comprises a pile seat (1), a ground pile (8), a concrete column and a concrete beam, wherein the ground pile (8) is buried under the ground, the pile seat (1) is installed on the ground pile (8), a rectangular column head (2) is prefabricated at the lower end of the concrete column, and the rectangular column head (2) is sleeved on the pile seat (1), at least one first bearing seat (3) is arranged in the middle of the concrete column, and a second bearing seat (5) is arranged at the upper end of the concrete column, and at least one rib plate (3c) is installed outside the first bearing seat (3) and the second bearing seat (5), and both ends of the concrete beam are prefabricated with an I-shaped column head (4), which is installed on the rib plate (3c) through a connecting plate (10) and forms an integral body with the concrete column, the rectangular column head (2), the first bearing seat (3) and the second bearing seat (5) are assembled through a first steel cage (6) and prefabricated together by concrete, and the I-shaped column head (4) is assembled with the second steel cage (7) and prefabricated together by concrete.

2. The large-span beam and column structure for prefabricated buildings according to claim 1 is characterized in that: The first bearing seat (3) and the second bearing seat (5) are both rectangular in shape, and a column tube (3b) is installed at the center of each. The outside of the rib plate (3c) and the I-shaped column head (4) are both provided with a plurality of uniformly arrayed through grooves (12), and the outside of the connecting plate (10) is provided with a plurality of uniformly arrayed notches (11). The rib plate (3c) and the I-shaped column head (4) are connected by bolts penetrating the through grooves (12) and the notches (11).

3. The large-span beam and column structure for prefabricated buildings according to claim 1 is characterized in that: A plurality of through holes (13) are provided at the four corners below the pile seat (1), and studs (9) are pre-installed at the four corners inside the ground pile (8), which penetrate the plurality of through holes (13) and have nuts threadedly installed on the outside, so that the pile seat (1) and the ground pile (8) are fixed together by bolts.

4. The large-span beam and column structure for prefabricated buildings according to claim 1, characterized in that: The four sides of the rectangular column head (2), the first bearing seat (3) and the second bearing seat (5) are all provided with corresponding main reinforcement holes; the eight main reinforcements of the first steel cage (6) sequentially penetrate the rectangular column head (2), the first bearing seat (3) and the second bearing seat (5); the four main reinforcements of the second steel cage (7) are welded to the four corners of the I-shaped column head (4); stirrups are also tied to the main reinforcements of the first steel cage (6) and the second steel cage (7); the stirrups are spaced 15 cm apart; they are densely tied near the column head or the bearing seat, with a spacing of 5 cm.

5. The large-span beam and column structure for prefabricated buildings according to claim 2, characterized in that: The column tube (3b) extends above and below the first bearing seat (3) by no less than 15 cm, the lower part of the column tube (3b) extends beyond the second bearing seat (5) by no less than 15 cm, and the upper part is flush with the second bearing seat (5), and the rectangular column head (2) and the I-shaped column head (4) are precast in concrete by no less than 15 cm.

6. The large-span beam and column structure for prefabricated buildings according to claim 1, characterized in that: The pile seat (1) is rectangular in shape as a whole, and is composed of two upper and lower rectangular plates (1a), a plurality of support plates (1b) and a socket connector (1c) installed at the center; the rectangular column head (2) is composed of two upper and lower assembly plates (2a), a plurality of reinforcing rib plates (2c) and a square tube (2b) installed at the center; the square tube (2b) is externally mounted on the socket connector (1c).

7. The large-span beam and column structure for prefabricated buildings according to claim 6, characterized in that: The rectangular plate (1a) on the upper part of the pile seat (1) and the assembly plate (2a) on the lower part of the rectangular column head (2) are both provided with corresponding screw holes, and the square tube (2b) is externally mounted on the socket connector (1c) and the pile seat (1) and the rectangular column head (2) are fixed by bolts.

8. The large-span beam and column structure for prefabricated buildings according to claim 1, characterized in that: Concrete is also cast in situ at the connection between the concrete column and the concrete beam, and at the connection between the rectangular column head (2) and the pile seat (1), so as to wrap all the exposed steel structures.

9. The construction process of large-span beam and column structures for prefabricated buildings is characterized by: The following steps are included: S1. Pre-place concrete piles (8) at appropriate locations of the foundation pit, and pre-place multiple studs (9) at the four corners of the piles; S2, installing the pile seat (1) on the ground pile (8) and locking it with a nut; S3, arranging a steel cage between the rectangular column head (2), the first bearing seat (3), and the second bearing seat (5), and supporting the shell plate outside the cage, and then pouring concrete, and after removing the formwork, obtaining a concrete column; S4, arranging a steel cage between two I-shaped column heads (4), and supporting a shell plate outside the cage, and then pouring concrete. After removing the mold, a concrete beam is obtained; S5, hoisting a plurality of concrete columns onto corresponding pile seats (1), fixing them together with bolts, and leveling the concrete columns; S6, hoisting the concrete beam to the outside of the first bearing seat (3) or the second bearing seat (5) of the two concrete columns, and connecting the I-shaped column head (4) to the first bearing seat (3) or the second bearing seat (5) through bolts and a connecting plate (10); S7. Support the shell plates at the joints of the above components and pour concrete into them. Remove the mold after solidification.

10. An assembled building constructed by the large-span beam and column structure for assembled buildings according to claims 1 to 8 and the construction process of the large-span beam and column structure for assembled buildings according to claim 9.

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