Full-prefabricated assembly type concrete frame structure

Abstract

The utility model discloses a full-prefabricated assembly type concrete frame structure in the technical field of prefabricated building structures. The full-prefabricated assembly type concrete frame structure comprises connecting stand columns, upper stand columns, cross beams, column end splicing pieces, supporting rods and jacking bolts. The connecting stand column and the protruding block form a T-shaped structure. The upper upright post and the cross beam are straight rods; the column end splicing piece and the beam end splicing piece are locked into an overall stress structure through the locking plate, the supporting barrel and the supporting nut are locked through the supporting rod, a prefabricated piece can be used, a butt joint position anchoring device is additionally arranged, splicing positions can be aligned more quickly, the splicing precision and speed are improved, the construction efficiency is improved, and the construction cost is reduced. Due to the fact that the structure is simple, the steel bars are accurately pre-embedded in the prefabrication process, site construction is not needed, the steel bar embedding accuracy is greatly improved, and construction quality and construction convenience are improved; the cast-in-place work is reduced, the prefabrication rate and the construction efficiency can be improved, and therefore the construction cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of prefabricated building structures, in particular to a fully prefabricated assembled concrete frame structure. Background Art

[0002] At present, cast-in-place concrete is usually used in the beam-column joint area of ​​the prefabricated assembled concrete frame structure, and the longitudinal reinforcement of the frame column is usually connected by sleeve grouting, but both require concrete pouring on site. Since the beams and columns need to be cast in place, the above implementation plan has a slow construction speed, requires formwork for shaping, is costly, and takes a long time to construct; grouting is used to connect the longitudinal reinforcement of the column, which is difficult to operate. When pouring on site, it is difficult to ensure that the reinforcement remains stable during the pouring process, and the construction quality is difficult to guarantee, and quality inspection is also difficult.

[0003] Therefore, in recent years, various construction projects have vigorously promoted the application of prefabricated and assembled structures. Prefabricated buildings have developed rapidly and have been widely used in various types of buildings.

[0004] However, the disadvantages of prefabricated structures are also obvious. In the current prefabricated structures, when splicing the upper and lower columns, it is difficult to tie the steel bars and they cannot be embedded. The strength of the joints after butt connection is low. The upper and lower columns are prefabricated and it is difficult to maintain a vertical state when splicing. The joints are prone to tilt under the action of terrain and gravity, causing the columns to tilt slightly. Especially during the solidification process of the joints, the upper spliced ​​columns need to be continuously hoisted to prevent them from tilting due to force. Moreover, if there is a slight tilt, the entire building structure will deflect slightly. The higher the building, the higher the verticality requirements. The current prefabricated columns and beams are difficult to ensure the splicing accuracy, and it is also difficult to solve the strength problem at the splicing.

[0005] Based on this, the utility model designs a fully prefabricated assembled concrete frame structure to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a fully prefabricated assembled concrete frame structure, which can use prefabricated parts and increase the docking position anchoring device, so as to facilitate faster alignment of the assembly points, improve the assembly accuracy and speed, and improve the construction efficiency. Moreover, due to the simple structure, the steel bars are accurately embedded in the prefabrication process and do not need to be constructed on site, which greatly improves the steel bar embedding accuracy, improves the construction quality and construction convenience; reduces the work of on-site pouring, can improve the prefabrication rate and construction efficiency, and thus reduce the project cost.

[0007] The utility model is implemented as follows: a fully prefabricated assembled concrete frame structure, comprising:

[0008] Connecting columns, upper columns, beams, column end fittings, support rods and jacking bolts;

[0009] The connecting columns, upper columns and cross beams are all prefabricated concrete components;

[0010] The upper columns and cross beams are straight bars;

[0011] The connecting column is a columnar structure, and the side wall of the connecting column has a convex block protruding horizontally outward, and the connecting column and the convex block form a T-shaped structure;

[0012] A column end splicing piece is fixedly arranged on the vertical side wall at the outer end of the protrusion, and a beam end splicing piece is fixedly arranged at each end of the crossbeam, and the beam end splicing piece has the same structure as the column end splicing piece;

[0013] The column end splicing piece and the beam end splicing piece are both step-shaped structures, and a receiving platform is also horizontally arranged in the middle of the column end splicing piece. The column end splicing piece forms a step-shaped structure through the receiving platform interval, and a receiving platform is also horizontally arranged in the middle of the beam end splicing piece. The receiving platform of the column end splicing piece is a flat support surface facing upward, and the receiving platform of the beam end splicing piece is a flat support surface facing downward; the receiving platforms of the column end splicing piece and the beam end splicing piece are horizontally fitted and spliced ​​with each other, and the column end splicing piece and the beam end splicing piece are locked by a locking plate to form an integral force-bearing structure;

[0014] A plurality of support tubes are fixedly arranged on the top end surface of the connecting column, each of which is locked with the pre-buried steel bar inside the connecting column, a plurality of support nuts are fixedly arranged on the bottom end surface of the upper column, each of which is also locked with the pre-buried steel bar inside the upper column, the plurality of support tubes on the top of the connecting column are evenly spaced and distributed in a rectangular shape, the plurality of support nuts on the bottom of the upper column are also evenly spaced and distributed in a rectangular shape, the positions and quantities of the plurality of support tubes and the plurality of support nuts correspond one to one, and each of the support tubes is directly below a support nut;

[0015] The support rod is a straight rod, the upper end of the support rod is an adjusting bolt, the support rod and the adjusting bolt are an integral structure, and the support tube and the support nut are locked by the support rod;

[0016] There are multiple jacking bolts, and multiple jacking bolts are set on the top of the connecting column. The jacking bolts are installed on the top end surface of the connecting column through threads and can be vertically lifted and lowered. The multiple jacking bolts are distributed around the top edge of the connecting column.

[0017] Furthermore, the connecting column and the protrusion are an integral structure formed by pouring concrete, a plurality of the support tubes are pre-embedded and anchored on the top end surface of the connecting column, and a plurality of the support nuts are also pre-embedded and poured on the bottom end surface of the upper column.

[0018] Furthermore, a jacking bolt is arranged between every two adjacent support tubes, and the support tubes and the jacking bolts are arranged in a uniformly spaced manner to form a rectangle, and the rectangle formed by the support tubes and the jacking bolts is distributed around the top edge of the connecting column;

[0019] The support tube is a cylinder with an opening at the top, the lower end of the support rod is a round rod, a hexagonal nail head is between the support rod and the adjusting bolt, the bottom of the adjusting bolt nail head is supported on the top end surface of the support tube, and the support rod is vertically inserted into the support tube;

[0020] The adjusting bolt and the supporting nut are locked by threaded connection.

[0021] Furthermore, the locking plate is a flat steel plate; the splicing ends of the column end splicing piece and the beam end splicing piece are horizontally provided with a plurality of locking holes.

[0022] The left and right sides of the locking plate are respectively locked with the locking holes of the column end splicing piece and the beam end splicing piece by bolts;

[0023] Two locking plates are respectively arranged on the front and rear sides of the vertical ribs of the column end splicing piece and the beam end splicing piece, and one locking plate is respectively locked on the front and rear sides of the top and bottom of the receiving platform.

[0024] The beneficial effects of the utility model are as follows: 1. The utility model can directly support the cross beam through the protrusion, and can effectively support the cross beam through the receiving platform of the column end splicing piece and the beam end splicing piece, and no longer needs to be hoisted and supported, so that the cross beam can be built without formwork, and only the joints need to be constructed on site, and the entire cross beam is already a complete structure when it is built, which is more convenient to construct, and the locking plate and the step-shaped column end splicing piece and beam end splicing piece are added, so that the splicing of the cross beam and the protrusion is easier to align, the locking is also more firm, the structural strength is higher, and the required bearing capacity can be achieved without waiting for the concrete age, and the construction speed is fast;

[0025] 2. The connecting column and the upper column of this device are pre-aligned and assembled by the support rod, and the support surface is pre-adjusted by the jacking bolt to ensure that the upper column is vertical, and then multiple support rods are used to adjust and strengthen the support, so that the support strength between the upper connecting column and the upper column is sufficient, and the verticality of the upper column can be adjusted by the support rod and the jacking bolt, making the construction simpler and faster. As long as the support rod and the jacking bolt are stable, the splicing seam can be effectively prevented from being deflected during the solidification process, so that the column can be built without formwork, greatly shortening the construction period;

[0026] 3. Through the support of support rods and jacking bolts, and the connection with internal steel bars through support tubes and support nuts, the structure of the entire building column component is more complete and the structural strength is higher. Taking into account the effects of boundary changes and construction loads, the on-site construction of precast concrete components can be achieved without support or formwork, greatly reducing the workload of on-site steel bar binding and reducing on-site wet operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention will be further described below in conjunction with the embodiments with reference to the accompanying drawings.

[0028] Figure 1 This is a schematic diagram of the complete structure assembly state of the utility model;

[0029] Figure 2 This is a schematic diagram of the structure of the components of the utility model in the disassembled state;

[0030] Figure 3 This is a schematic diagram of the structure of the split butt joint position of the column end splicing piece and the beam end splicing piece of the utility model;

[0031] Figure 4 This is a schematic diagram of the front structure of the locking plate of the utility model;

[0032] Figure 5 This is a schematic diagram of the assembly relationship of the support rod, adjusting bolt, support tube and support nut of the utility model;

[0033] Figure 6 This is a top view of the structure of the top of the connecting column of the utility model;

[0034] Figure 7 This is a bottom view schematic diagram of the upper column bottom structure of the utility model;

[0035] Figure 8 It is a structural schematic diagram of the utility model in which a connecting column and an upper column form a complete column.

[0036] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0037] 1-connecting column, 11-upper column, 12-crossbeam, 13-bump, 2-column end splicing piece, 21-beam end splicing piece, 22-supporting platform, 23-locking plate, 24-locking hole, 3-support rod, 31-adjusting bolt, 32-support tube, 33-support nut, 4-jacking bolt. DETAILED DESCRIPTION

[0038] See also Figures 1 to 8 As shown, the utility model provides a technical solution: a fully prefabricated assembled concrete frame structure, comprising:

[0039] Connecting the column 1, the upper column 11, the cross beam 12, the column end splicing piece 2, the support rod 3 and the jacking bolt 4;

[0040] The connecting column 1, the upper column 11 and the cross beam 12 are all prefabricated concrete components;

[0041] The upper column 11 and the crossbeam 12 are straight rods;

[0042] The connecting column 1 is a columnar structure, and the side wall of the connecting column 1 has a protrusion 13 that protrudes horizontally outward, and the connecting column 1 and the protrusion 13 form a T-shaped structure; the connecting column 1 and the protrusion 13 are cast as an integral structure with concrete, and multiple support cylinders 32 are pre-embedded and anchored on the top end face of the connecting column 1, and multiple support nuts 33 are also pre-embedded and cast on the bottom end face of the upper column 11. Multiple support cylinders 32 are fixed on the top end face of the connecting column 1, and each support cylinder 32 is locked with the pre-embedded steel bars inside the connecting column 1. Multiple support nuts 33 are fixed on the bottom end face of the upper column 11, and each support nut 33 is also locked with the pre-embedded steel bars inside the upper column 11.

[0043] A column end splicing piece 2 is fixedly arranged on the vertical side wall at the outer end of the protrusion 13, and a beam end splicing piece 21 is fixedly arranged at each end of the crossbeam 12. The beam end splicing piece 21 has the same structure as the column end splicing piece 2.

[0044] The column end splicing piece 2 and the beam end splicing piece 21 are both step-shaped structures. A receiving platform 22 is horizontally arranged in the middle of the column end splicing piece 2. The column end splicing piece 2 is spaced by the receiving platform 22 to form a step-shaped structure. A receiving platform 22 is also horizontally arranged in the middle of the beam end splicing piece 21. The receiving platform 22 of the column end splicing piece 2 is a flat support surface facing upward, and the receiving platform 22 of the beam end splicing piece 21 is a flat support surface facing downward; the receiving platforms 22 of the column end splicing piece 2 and the beam end splicing piece 21 are horizontally fitted and spliced ​​with each other, and the column end splicing piece 2 and the beam end splicing piece 21 are locked into an integral force-bearing structure by a locking plate 23; the locking plate 23 is a flat steel plate; the splicing ends of the column end splicing piece 2 and the beam end splicing piece 21 are horizontally provided with a plurality of locking holes 24,

[0045] The left and right sides of the locking plate 23 are respectively locked with the locking holes 24 of the column end splicing piece 2 and the beam end splicing piece 21 by bolts;

[0046] Two locking plates 23 are respectively arranged on the front and rear sides of the vertical ribs of the column end splicing piece 2 and the beam end splicing piece 21 , and one locking plate 23 is respectively locked on the front and rear sides of the top and bottom of the receiving platform 22 .

[0047] The structure of the beam end splicing piece 21 is exactly the same as that of the column end splicing piece 2, except that the directions are opposite. Moreover, the beam end splicing piece 21 is pre-buried and cast with the cross beam 12 as an integral structure, and a beam end splicing piece 21 needs to be pre-buried at both ends of each cross beam 12, and the column end splicing piece 2 needs to be pre-buried and cast with the protrusion 13 connecting the column 1 as an integral structure. However, the cross beam 12 itself is a horizontal straight rod. When splicing, the beam end splicing piece 21 and the column end splicing piece 22 need to be swapped in direction, so that the flat load-bearing surface 22 of the beam end splicing piece 21 faces downward, and the flat splicing surface of the column end splicing piece 2 is placed upward, so that the two spliced ​​pieces 22 can be aligned and spliced ​​with each other for effective load bearing.

[0048] The multiple support tubes 32 at the top of the connecting column 1 are evenly spaced and distributed in a rectangular shape, and the multiple support nuts 33 at the bottom of the upper column 11 are also evenly spaced and distributed in a rectangular shape. The positions and quantities of the multiple support tubes 32 and the multiple support nuts 33 correspond one to one, and each support tube 32 is directly below a support nut 33;

[0049] The support rod 3 is a straight rod, the upper end of the support rod 3 is an adjusting bolt 31, the support rod 3 and the adjusting bolt 31 are an integral structure, and the support tube 32 and the support nut 33 are locked by the support rod 3;

[0050] There are multiple jacking bolts 4, and multiple jacking bolts 4 are set on the top of the connecting column 1. The jacking bolts 4 can be installed on the top end surface of the connecting column 1 through threads and can be vertically lifted and lowered. The multiple jacking bolts 4 are distributed around the top edge of the connecting column 1.

[0051] A jacking bolt 4 is arranged between every two adjacent support tubes 32, and the support tubes 32 and the jacking bolts 4 are arranged in a rectangular shape in a uniform interval, and the rectangle formed by the support tubes 32 and the jacking bolts 4 is distributed around the top edge of the connecting column 1;

[0052] The support tube 32 is a cylinder with an opening at the top, the lower end of the support rod 3 is a round rod, a hexagonal nail head is between the support rod 3 and the adjusting bolt 31, the bottom of the nail head of the adjusting bolt 31 is supported on the top end surface of the support tube 32, and the support rod 3 is vertically inserted into the support tube 32;

[0053] The adjusting bolt 31 and the supporting nut 33 are locked by thread connection. Thus, the upper end of the supporting rod 3 is threadedly locked with the supporting nut 33 by thread, and the lower end of the adjusting bolt 31 is connected and clamped with the lower end of the supporting tube 32, which lifts the supporting rod 3 to ensure that the connecting column 1 locks the upper column 11 stably. When splicing, ensure that the splicing surface between the connecting column 1 and the upper column 11 remains horizontal. The supporting rod 3 and the adjusting bolt 31 form a mechanical joint structure with the supporting tube 32 and the supporting nut 33, which can be connected and adjusted in height, and the supporting height can be adjusted by the lifting bolt 4 at the same time.

[0054] The upper column 11 is assembled on the top of the connecting column 1, and the vertical outer end of the protrusion 13 is also horizontally spliced ​​with the cross beam 12; the connecting column 1, the upper column 11, the cross beam 12 and the protrusion 13 are all prefabricated concrete components;

[0055] The connecting column 1, the upper column 11 and the cross beam 12 are all prefabricated concrete components, and the structures of the connecting column 1 and the upper column 11 are actually the same. They are all part of the prefabricated columns of the building structure. The connecting column 1 is the top part of the prefabricated column, and the upper column 11 is the bottom part of the prefabricated column. Two prefabricated columns are needed, and the upper column 11 at the bottom is vertically assembled and docked at the top of the connecting column 1 to form a Figure 1 As shown in the structure, conventional prefabricated building components need to be reinforced by embedded steel bars, and some directly use more solid steel cages to strengthen concrete building components.

[0056] Steel bars are also buried inside the connecting column 1, the upper column 11 and the cross beam 12 of the device. The buried direction of the steel bars is the same as that of the conventional columns and beams. The steel bars need to be buried along the vertical direction of the column, and the entire steel bar needs to be completely buried therein. In this device, support tubes 32 and support nuts 33 need to be installed at both ends of the steel bars connecting the column 1 and the upper column 11, and jacking bolts 4 need to be buried at the top of the connecting column 1. The jacking bolts 4 and the support tubes 32 need to be arranged at intervals and are surrounded by the same rectangular frame as a whole. The distribution of the jacking bolts 4 and the support tubes 32 is as shown in FIG. Figure 6 As shown, the support nuts 33 on the upper column 11 need to be distributed in a rectangular frame, and each support nut 33 needs to be correspondingly set directly above a support tube 32. The position needs to be accurate during prefabrication, and the jacking bolt 4 needs to avoid the position of the support tube 32 to ensure that the jacking bolt 4 does not interfere with other structures.

[0057] Compared with the existing technology, the structure of the embodiment of the utility model has the following differences:

[0058] 1. Existing concrete columns and beams need to be tied and fixed with templates on the construction site, the shapes of the columns and beams are molded, and then poured with concrete. The pouring process is slow, and the position of the steel bars buried inside the concrete components is difficult to ensure, which is prone to uneven force. The device uses prefabricated columns and beams 12, which has a fast construction speed, and the internal steel bars are pre-straightened to ensure the position of the steel bars to ensure the stability of the structure and force. When the prefabricated structure is constructed on site, it is efficient and fast, effectively shortening the construction period; 2. There are also prefabricated concrete building components. During assembly, the joint between the upper and lower columns and the crossbeam 12 is a weak point. The general joint is surface joint. There is also a method of tying the exposed steel bars of the prefabricated components and then filling the joint with concrete. This kind of concrete and steel bars are prone to cold joints in the later forming, and the structural strength is insufficient. The device adds a support tube 32 and a support nut 33, and locks the support tube 32 and the support nut 33 through the support rod 3 and the adjusting bolt 31. At the same time, the steel bars in the connecting column 1 and the upper column 11 are locked, ensuring the structural strength and the integrity of the structure. The steel bars in between are locked by the support rod 3 and the adjusting bolt 31 to the support tube 32 and the support nut 33 as a whole to make the joint structure stronger; 3. When the existing prefabricated columns are spliced, the joint gap will be pressed downward. Generally, only one crane is used for hoisting during splicing. It can only bear the weight during hoisting, but cannot ensure the stability of its docking deflection force, which makes it easy for the upper column to deflect when splicing, resulting in a slight deflection of the column after solidification, and it cannot be adjusted during assembly, nor can it limit and support the concrete inside the joint gap before solidification. When the device is assembled, the lifting bolt 4 can be used to The entire upper column 11 is temporarily lifted so that when the upper and lower columns of the device are assembled, the support angle of the upper column 11 can be adjusted to ensure that the upper column 11 remains vertical during assembly. Then, the support tube 32 and the support nut 33 are matched through the support rod 3 and the adjusting bolt 31, and the support rod 3 is adjusted. The upper column 11 is stably supported by multiple support rods 3, the structure is more stable, and the supporting effect is better, ensuring that the upper column 11 remains in a vertical state during the solidification process of the splicing seam. The device can not only adjust the position of the upper column 11, but also provide effective support during the solidification process of the concrete in the gap.

[0059] 4. When assembling the existing prefabricated beams 12, they can only be tied with steel bars and then the gaps are cast with concrete. When splicing, the weight of the beams 12 presses downward, which will cause the spliced ​​steel bars to pull due to the heavy pressure, causing the beams 12 to sink slightly, which will affect the strength and stability of the building structure. However, the device supports the beams 12 through the receiving platform 22 of the column end splicing piece 2, and supports the receiving platform 22 of the beam end splicing piece 21 and the column end splicing piece 2, ensuring that the beams 12 can remain stable even when directly built, ensuring high structural strength and high docking accuracy, and will not deflect due to heavy pressure.

[0060] In a specific embodiment of the present invention:

[0061] The technical solution in the embodiment of the utility model is to solve the above problems, and the overall idea is as follows:

[0062] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0063] During the construction of the utility model, the splicing process is completed through the following steps:

[0064] The connecting column 1 is fixed vertically on a reference plane; the connecting column 1 can also be locked with the steel bar of the pile foundation through the support nut 33 at the bottom of its lower end through a mechanical joint to ensure that the connecting column 1 is installed stably. The upper column 11 is installed above the connecting column 1 of the device, and the top of the upper column is the connecting column 1. The top of the same prefabricated column is the connecting column 1, and the lower end is the upper column 11. Figure 8 shown.

[0065] When splicing the cross beam, assemble the cross beam 12 between the two connecting columns 1, align the cross beam 12 with the protrusion 13 of the connecting column 1, align the column end splicing piece 2 with the beam end splicing piece 21, and horizontally mount the receiving platform 22 of the beam end splicing piece 21 on the top of the receiving platform 22 of the column end splicing piece 2;

[0066] To strengthen the connection between the column end splicing piece 2 and the beam end splicing piece 21, it is not only necessary to rely on concrete pouring, but also to lock and reinforce it through steel locking plates 23. Four locking plates 23 are taken and clamped on the front and rear sides of the column end splicing piece 2 and the beam end splicing piece 21. A locking plate 23 is respectively arranged on the upper and lower sides of the receiving platform 22, and the front and rear sides of the receiving platform 22 are also required to lock the locking plates 23, so that the four locking plates 23 clamp and lock the vertical ribs of the column end splicing piece 2 and the beam end splicing piece 21, which not only strengthens the thickness of the ribs, but also locks the cross beam 12 and the protrusion 13 to bear the force as a whole, and can also support the weight of the cross beam 12 through the receiving platform 22, so that the cross beam 12 can be stably mounted, which is convenient for concrete pouring of the splicing seam.

[0067] Then, the locking plate 23 is locked by passing bolts through the locking holes 24, and the outer part of the column end joint piece 2 and the beam end joint piece 21 are covered with concrete, and the joint seams of the protrusion 13 and the beam 12 are smoothed;

[0068] When splicing the upper column 11 above the connecting column 1, the support rod 3 is pre-installed on the support nut 33 at the bottom of the upper column 11 through the adjusting bolt 31, and each support nut 33 has a corresponding support rod 3 installed at the bottom, and then the upper column 11 is vertically suspended and docked on the top of the connecting column 1, and each support rod 3 is aligned and inserted into a support tube 32, so that the upper column 11 is preliminarily installed on the top of the connecting column 1, and the position is relatively stable, and the steel bar is basically not exposed. In order to facilitate operation, the existing steel bar binding generally has a splicing seam height of 15-30cm high, while the splicing seam of the present device is aligned, and the thickness of only one nut is about 1-3cm, which can be inserted into a wrench. Such a splicing seam is small in thickness and basically does not bear heavy loads, which reduces the volume and thickness of the splicing seam with lower strength, so that after splicing, the structural strength of the entire column is higher;

[0069] The device can adjust the verticality of the upper column 11, keep the upper column 11 in a suspended state, and a part of the weight is pressed on the top of the connecting column 1, and the operation is performed by adjusting the height of the jacking bolt 4, and the jacking bolt 4 is used to support the bottom of the upper column 11, and the knob jacking bolt 4 is turned to make the bottom of the upper column 11 that is slightly deflected to the lower side be lifted up by the jacking bolt 4 for jacking, so that the upper column 11 is supported on the top of the connecting column 1 by the jacking bolt 4 to fine-tune its inclination, and is detected by the vertical measuring device until the upper column 11 is adjusted to a vertical state; at this time, the upper column 11 is effectively supported by multiple support rods 3 and multiple jacking bolts 4;

[0070] Under the condition that the upper column 11 is kept in a vertical state, and part of the weight of the upper column 11 is borne on the jacking bolt 4, then the knob is adjusted to adjust the bolt 31, so that the support rod 3 extends downward, and the lower end of the support rod 3 and the bottom of the support tube 32 are effectively supported. Each support rod 3 between the upper column 11 and the connecting column 1 needs to be jacked up to ensure the stability of the upper column support, and then the formwork is used to limit the splicing gap. Because the height of the splicing seam is very small, it can be considered not to support the formwork, and the external surface can be directly cast and smoothed. The gap is small and the concrete will not overflow and scatter;

[0071] Then pour concrete into the gap between the connecting column 1 and the upper column 11 to ensure that it is filled and compacted, smooth the concrete outside the joint between the connecting column 1 and the upper column 11, and wait for it to solidify to form a complete building support component. The structure of the device has a small splicing gap, and the overall structure of the column after splicing is strong. The splicing seam is completely locked with the steel bar and has a top support function. The splicing effect is good, and the verticality of the upper column 11 above can be adjusted. It is more flexible to use and the splicing is more accurate. The splicing of the crossbeam 12 can be directly built and erected, and then the splicing seam is smoothed during concrete pouring. There is no need for strong support and bearing all the time. The assembly accuracy is high, the use is convenient and flexible, the construction period is effectively shortened, and the building structure can be increased. The splicing seam is narrow, which hardly affects the integrity of the building and has high structural strength.

[0072] The outer end of the protrusion 13 of the device refers to the end spliced ​​with the crossbeam 12, the outer end of the crossbeam 12 refers to the end spliced ​​with the protrusion 13, and the upper and lower ends connecting the column 1 and the upper column 11 are both referred to as the splicing seam ends.

[0073] Although the specific implementation methods of the present invention are described above, those skilled in the art should understand that the specific embodiments described are only illustrative and are not intended to limit the scope of the present invention. Equivalent modifications and changes made by those skilled in the art in accordance with the spirit of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. A fully prefabricated concrete frame structure, characterized in that: include: Connecting the upright column (1), the upper upright column (11), the cross beam (12), the column end splicing piece (2), the support rod (3) and the jacking bolt (4); The connecting columns (1), upper columns (11) and cross beams (12) are all prefabricated concrete components; The upper column (11) and the crossbeam (12) are straight rods; The connecting column (1) is a columnar structure, and the side wall of the connecting column (1) is provided with a convex block (13) protruding horizontally outward, and the connecting column (1) and the convex block (13) form a T-shaped structure; A column end splicing piece (2) is fixedly arranged on the vertical side wall at the outer end of the protrusion (13), and a beam end splicing piece (21) is fixedly arranged at each end of the crossbeam (12), and the beam end splicing piece (21) has the same structure as the column end splicing piece (2); The column end splicing piece (2) and the beam end splicing piece (21) are both step-shaped structures. A receiving platform (22) is also horizontally arranged in the middle of the column end splicing piece (2). The column end splicing piece (2) is spaced to form a step-shaped structure by the receiving platform (22). The receiving platform (22) of the column end splicing piece (2) is a flat support surface facing upward, and the receiving platform (22) of the beam end splicing piece (21) is a flat support surface facing downward. The receiving platforms (22) of the column end splicing piece (2) and the beam end splicing piece (21) are horizontally fitted and spliced ​​with each other. The column end splicing piece (2) and the beam end splicing piece (21) are locked by a locking plate (23) to form an integral force-bearing structure. A plurality of support tubes (32) are fixedly arranged on the top end surface of the connecting column (1), and each of the support tubes (32) is locked with the pre-buried steel bars inside the connecting column (1). A plurality of support nuts (33) are fixedly arranged on the bottom end surface of the upper column (11), and each of the support nuts (33) is also locked with the pre-buried steel bars inside the upper column (11). The plurality of support tubes (32) on the top of the connecting column (1) are evenly spaced and distributed in a rectangular shape, and the plurality of support nuts (33) on the bottom of the upper column (11) are also evenly spaced and distributed in a rectangular shape. The positions and quantities of the plurality of support tubes (32) and the plurality of support nuts (33) correspond one to one, and each of the support tubes (32) is located directly below a support nut (33); The support rod (3) is a straight rod, the upper end of the support rod (3) is an adjusting bolt (31), the support rod (3) and the adjusting bolt (31) are an integral structure, and the support tube (32) and the support nut (33) are locked by the support rod (3); There are a plurality of jacking bolts (4), and a plurality of jacking bolts (4) are arranged on the top of the connecting column (1). The jacking bolts (4) are installed on the top end surface of the connecting column (1) in a manner that allows them to be vertically raised and lowered through threads. The plurality of jacking bolts (4) are distributed around the top edge of the connecting column (1).

2. A fully prefabricated assembled concrete frame structure according to claim 1, characterized in that: The connecting column (1) and the protrusion (13) are an integral structure formed by pouring concrete, a plurality of the support tubes (32) are pre-embedded and anchored on the top end surface of the connecting column (1), and a plurality of the support nuts (33) are also pre-embedded and poured on the bottom end surface of the upper column (11).

3. The fully prefabricated assembled concrete frame structure according to claim 1, characterized in that: A lifting bolt (4) is arranged between every two adjacent support tubes (32), and the support tubes (32) and the lifting bolts (4) are arranged in a uniformly spaced manner to form a rectangle, and the rectangle formed by the support tubes (32) and the lifting bolts (4) is distributed around the top edge of the connecting column (1); The support tube (32) is a cylinder with an open top, the lower end of the support rod (3) is a round rod, a hexagonal nail head is provided between the support rod (3) and the adjusting bolt (31), the bottom of the nail head of the adjusting bolt (31) is supported on the top end surface of the support tube (32), and the support rod (3) is vertically inserted into the support tube (32); The adjusting bolt (31) and the supporting nut (33) are locked via threaded connection.

4. The fully prefabricated assembled concrete frame structure according to claim 1, characterized in that: The locking plate (23) is a flat steel plate; the splicing ends of the column end splicing piece (2) and the beam end splicing piece (21) are horizontally provided with a plurality of locking holes (24). The left and right sides of the locking plate (23) are respectively locked with the locking holes (24) of the column end splicing piece (2) and the beam end splicing piece (21) by means of bolts; Two locking plates (23) are respectively arranged on the front and rear sides of the vertical ribs of the column end splicing piece (2) and the beam end splicing piece (21), and one locking plate (23) is respectively locked on the front and rear sides of the top and bottom of the receiving platform (22).

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