Prestressed fabricated building structure and construction method thereof

Abstract

The invention relates to the technical field of fabricated buildings, and provides a prestressed fabricated building structure which comprises a concrete foundation and a plurality of prefabricated columns, and the prefabricated columns are provided with mounting grooves allowing the prefabricated columns to be inserted; through holes are formed in the prefabricated columns, and the two ends of the through holes communicate with the two length ends of the prefabricated columns correspondingly; steel wire ropes penetrate through the through holes, and anchorage devices used for being connected with one ends of the steel wire ropes are arranged on the top walls of the prefabricated columns; inserting blocks are slidably mounted at the bottoms of the prefabricated columns, and the other ends of the steel wire ropes are connected with the inserting blocks; the inner side wall of the installation groove is provided with an insertion groove for the insertion of the insertion block, and the inner bottom wall of the installation groove is provided with a guide block. The insertion block is provided with a guide groove for insertion of the guide block, and when the guide block is provided with a first guide surface, the first guide surface is used for guiding the insertion block to be inserted into the insertion groove. According to the prestressed fabricated building structure, the mounting efficiency of the prefabricated components and the foundation is improved.

Description

Technical Field

[0001] The present application relates to the technical field of prefabricated buildings, and in particular to a prestressed prefabricated building structure and a construction method thereof. Background Art

[0002] In the modern construction industry, prefabricated building structures have gradually attracted widespread attention and application due to their advantages such as fast construction speed, low cost and environmental protection. Prestressed prefabricated building structures have become the first choice for important projects such as high-rise buildings and large bridges due to their excellent structural stability and loading capacity.

[0003] However, there are often some problems in the installation process of traditional prestressed assembled building structures. For example, the connection between prefabricated components and the foundation is often a type of welding, bolting, etc.; although these methods ensure the strength of the connection, they have a long construction period, high cost, and high requirements for the on-site working environment, which is not conducive to rapid construction and reduces construction efficiency. Summary of the invention

[0004] In order to improve the installation efficiency of prefabricated components and foundations, the present application provides a prestressed assembled building structure and a construction method thereof.

[0005] In the first aspect, the present application provides a prestressed assembled building structure adopting the following technical solution: A prestressed assembled building structure, comprising a concrete foundation and a plurality of prefabricated columns, wherein the prefabricated columns are provided with installation grooves for inserting the prefabricated columns; the prefabricated columns are provided with through holes, and the two ends of the through holes are respectively connected with the two ends of the length of the prefabricated columns; a steel wire rope is passed through the through holes, and an anchor for connecting with one end of the steel wire rope is arranged on the top wall of the prefabricated column; a plug-in block is slidably installed at the bottom of the prefabricated column, and the other end of the steel wire rope is connected with the plug-in block; The inner side wall of the installation groove is provided with a plug-in groove for the plug-in block to be plugged in, and the inner bottom wall of the installation groove is provided with a guide block; the plug-in block is provided with a guide groove for the guide block to be plugged in, and when the guide block is provided with a first guide surface, the first guide surface is used to guide the plug-in block to be plugged into the plug-in groove.

[0006] By adopting the above-mentioned technical scheme, when the prefabricated column is connected to the foundation, the prefabricated column is inserted into the installation groove. At this time, the guide groove of the plug-in block approaches one side of the guide block and is sleeved on the outer wall groove of the guide block. At this time, the bottom wall of the plug-in block abuts against the first guide surface, and the plug-in block moves toward one side of the plug-in groove under the guidance of the first guide surface, so that the plug-in block can be inserted into the plug-in groove, thereby completing the connection between the prefabricated column and the foundation; and after the plug-in block is inserted into the plug-in groove, concrete is poured into the through hole, and then the steel wire rope is tightened using an anchor, which can provide prestress for the prefabricated column.

[0007] This method achieves a fast and stable connection between prefabricated columns through the cooperation of the installation grooves on the prefabricated columns and the plug-in blocks. At the same time, the prefabricated columns are prestressed through prestressing devices such as wire ropes and anchors. When natural disasters such as earthquakes occur, the taut wire ropes can absorb and disperse the impact force, thereby reducing the damage to the structure.

[0008] Optionally, a movable groove is formed on the top wall of the plug-in slot, a movable block is movably installed in the movable groove, a first spring is arranged between the movable block and the movable groove, and the elastic force of the first spring is used to drive the movable block to move toward a side away from the movable groove.

[0009] By adopting the above-mentioned technical scheme, when the guide block is inserted into the guide groove, the plug-in block moves toward one side of the plug-in groove under the guidance of the first guide surface and abuts against the movable block; as the prefabricated column goes deeper, the movable block will be forced to move into the movable groove and compress the first spring; and when the guide block is completely plugged into the guide groove and the plug-in block enters the plug-in groove; the movable block moves toward the side away from the movable groove under the elastic force of the first spring, so that the movable block abuts against the upper surface of the plug-in block; thereby completing the connection between the prefabricated column and the foundation, reducing the situation where the plug-in block is separated from the plug-in groove.

[0010] Optionally, a first connecting groove is provided on the top wall of the plug-in block, a connecting block is movably installed in the first connecting groove, and a second connecting groove for the connecting block to be plugged into is provided on the bottom wall of the movable block; a second spring is provided between the connecting block and the second connecting groove, and the elastic force of the second spring is used to drive the connecting block to be normally plugged into the second connecting groove; the connecting block is provided with a second guide surface for guiding the connecting block to enter the first connecting groove.

[0011] By adopting the above technical solution, when the plug-in block is fully inserted into the plug-in slot, the elastic force of the first spring drives the movable block to move toward the side away from the movable slot; and the connecting block enters the second connecting slot under the guidance of the second guide surface, and when the first connecting slot and the second connecting slot are arranged opposite to each other, the connecting block is inserted into the second slot under the elastic force of the spring, thereby completing the connection between the plug-in block and the movable block.

[0012] In addition, when the structure is subjected to external loads, the elastic force of the first spring can provide additional supporting force, further improving the earthquake resistance of the structure.

[0013] Optionally, a third spring is provided between the plug-in block and the prefabricated column, and the elastic force of the third spring is used to drive the plug-in block to move toward one side of the through hole.

[0014] By adopting the above-mentioned technical solution and setting a third spring, the elastic force of the third spring is used to drive the plug-in block to move toward one side of the through hole, thereby reducing the situation in which the prefabricated column is installed in front of the installation groove and the plug-in block protrudes from the outer wall of the prefabricated column, thereby improving the convenience of prefabricated column installation.

[0015] Optionally, the prefabricated column includes a head end column, a tail block and a plurality of connecting columns arranged between the head end column and the tail block, the plug-in block is slidably installed on the tail block, and the anchor is arranged on the head end column; a conical block is integrally formed on one side of the connecting column, and adjacent connecting columns are provided with conical grooves for the conical blocks to be plugged in; connecting holes are provided in the middle of the head end column, the tail block and the connecting column, and all the connecting holes are connected to form the through hole.

[0016] By adopting the above technical solution, the prefabricated columns are arranged into multiple modules, so as to facilitate the transportation of the prefabricated columns, and the number of connecting columns can be increased or decreased according to the required length of the prefabricated columns; and the tapered blocks and tapered grooves cooperate to increase the contact area between two adjacent connecting columns, thereby improving the stability of the prefabricated columns after forming. In addition, when the steel wire rope is in a taut state, the two adjacent connecting columns are pressed against each other, which can ensure the stability of the overall prefabricated column.

[0017] Optionally, the plug-in blocks are provided in four groups, and the four groups of the plug-in blocks are arranged at intervals around the axis of the tail block; the steel wire rope is connected to the four groups of the plug-in blocks.

[0018] By adopting the above technical solution, the four sets of plug-in blocks can more effectively disperse the load on the top of the prefabricated column, thereby improving the stability of the entire structure. The rectangular distribution of through holes makes the prestress of the steel wire rope more uniform, which helps to reduce the risk of structural damage caused by stress concentration.

[0019] Optionally, a plurality of flow channels are provided on the surface of the conical block, and two ends of the flow channels are respectively connected to the connecting hole and the outer wall of the connecting column.

[0020] By adopting the above technical solution, when pouring concrete into the through hole, part of the concrete enters the flow channel, so as to increase the bonding force between two adjacent connecting columns, so that all the connecting columns are integrated.

[0021] Optionally, the conical block is arranged at the end of the connecting column away from the mounting groove, a mounting ring is arranged in the connecting hole, and the steel wire rope is provided with a clamping block for abutting against the bottom wall of the mounting ring; the flow channel is provided with a pull rope for connecting with the mounting ring, and the pull rope is provided with a clamping plate at one end away from the mounting ring for abutting against the outer wall of the connecting column.

[0022] By adopting the above-mentioned technical solution, by setting a pull rope, when the anchor is used to tighten the wire rope, the clamping block will abut against the bottom wall of the mounting ring and provide an upward force to the mounting ring; since the clamping plate is connected to the mounting ring through the pull rope, the clamping plate can be pressed against the outer walls of the two adjacent connecting columns to provide a support point for the prefabricated column, thereby preventing the connecting column from tipping over due to external loads.

[0023] Optionally, the inner bottom wall of the installation groove is provided with a plurality of support blocks for abutting against the bottom wall of the prefabricated column.

[0024] By adopting the above technical solution and setting support blocks, the prefabricated column can be inserted into the installation groove with a gap between it and the bottom wall of the installation groove. If external sand and gravel enter the installation groove, the sand and gravel will fall between two adjacent support blocks, so that the prefabricated column can be smoothly inserted into the installation groove.

[0025] In a second aspect, the present application provides a construction method for a prestressed assembled building structure, which specifically comprises the following steps: S1 pours concrete foundation, levels the construction site, and pours concrete into the construction site to form a concrete foundation; S2 installs the prefabricated column, hoists the prefabricated column to the top of the installation slot, and slowly inserts the prefabricated column into the installation slot. The plug-in block is inserted into the plug-in slot under the guidance of the guide block in the installation slot; S3 prestressing is applied, and the steel wire rope is tensioned by using tensioning equipment to make the steel wire rope in a taut state; S4, complete the installation of precast columns and concrete foundation.

[0026] By adopting the above technical solution, when connecting the prefabricated column to the foundation, the prefabricated column is inserted into the installation groove; at this time, the plug-in block is inserted into the plug-in groove under the guidance of the guide block, thereby completing the connection between the prefabricated column and the foundation; this method improves the installation efficiency of the prefabricated column and the concrete foundation, reduces subsequent maintenance, and reduces construction costs.

[0027] In summary, the present application includes at least one of the following beneficial technical effects: 1. When connecting the prefabricated column to the foundation, the prefabricated column is inserted into the installation groove. At this time, the plug-in block moves toward one side of the plug-in groove under the guidance of the first guide surface, so that the plug-in block can be inserted into the plug-in groove, thereby completing the connection between the prefabricated column and the foundation; and after the plug-in block is inserted into the plug-in groove, concrete is poured into the through hole, and then the steel wire rope is tightened by the anchor; prestress can be provided for the prefabricated column, and when natural disasters such as earthquakes occur, the taut steel wire rope can absorb and disperse the impact force, thereby reducing the damage to the structure; 2. By setting a pull rope and using an anchor to tighten the wire rope, the clamping block will abut against the bottom wall of the mounting ring and provide an upward force to the mounting ring; since the clamping piece is connected to the mounting ring through the pull rope, the clamping piece can be pressed against the outer walls of the two adjacent connecting columns to provide a support point for the prefabricated column, thereby preventing the connecting column from tipping over due to external loads. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a partial cross-sectional view of Example 1; Figure 2 yes Figure 1 A local enlarged view of point a; Figure 3 is a partial cross-sectional view of Example 2; Figure 4 yes Figure 3 A local enlarged view of point b; Figure 5 is a partial cross-sectional view of Example 3; Figure 6 yes Figure 5 A local enlarged view of point c; Figure 7 It is a schematic diagram of the structure of the conical block of Example 3.

[0029] Explanation of the accompanying drawings: 1. Concrete foundation; 11. Mounting groove; 12. Support block; 13. Guide block; 14. First guide surface; 15. Plug-in groove; 16. Movable groove; 17. Movable block; 171. Second connecting groove; 18. First spring; 2. Prefabricated column; 21. Through hole; 211. Connecting hole; 22. Sliding groove; 23. Head end column; 24. Tail end column; 25. Connecting column; 26. Conical block; 27. Conical groove; 28. Channel; 3. Wire rope; 4. Anchor; 5. Plug-in block; 51. Guide groove; 52. Third spring; 53. First connecting groove; 54. Connecting block; 55. Second spring; 56. Second guide surface; 6. Pull rope; 61. Mounting ring; 62. Tightening sheet; 63. Tightening block. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-7 This application is described in further detail.

[0031] Embodiment 1: The embodiment of the present application discloses a prestressed assembled building structure.

[0032] Reference Figure 1 A prestressed assembled building structure includes a concrete foundation and a plurality of prefabricated columns. The concrete foundation is provided with an installation groove, and the prefabricated columns are installed in the installation groove of the concrete foundation.

[0033] The prefabricated column is provided with through holes which are connected with both ends of the prefabricated column. An anchor is installed on the top of the prefabricated column. The anchor is connected with one end of the steel wire rope to tighten the steel wire rope to form tension.

[0034] Reference Figure 2 Four sliding grooves connected to the through hole are opened on the side wall of the prefabricated column, and the bottom wall of the sliding groove is connected to the bottom wall of the prefabricated column; a plug-in block is slidably installed in the sliding groove, and the end of the wire rope away from the anchor is connected to the plug-in block; a third spring is arranged between the plug-in block and the sliding groove, and the elastic force of the third spring is used to drive the plug-in block to move toward one side of the through hole; so as to reduce the situation where the plug-in block protrudes from the outer wall of the plug-in block, so that the prefabricated column can be smoothly plugged into the installation groove.

[0035] The bottom wall of the installation groove is provided with a plurality of support blocks for abutting against the bottom wall of the prefabricated column, and there is a gap between two adjacent support blocks; after the external sand and gravel enter the installation groove, they will fall between the two adjacent support blocks, thereby reducing the need to clean the installation groove during the installation of the prefabricated column, so as to maintain the stability and accuracy of the prefabricated column installed in the installation groove.

[0036] A plug-in groove is provided on the side wall of the installation groove, and a guide block is provided on the bottom wall of the installation groove, and the guide block protrudes from the upper surface of the support block; a first guide surface is provided on the side of the guide block close to the inner side wall of the installation groove, and a guide groove for the guide block to be plugged in is provided on the bottom wall of the plug-in block; when the prefabricated column is installed in the installation groove, the guide block enters the guide groove, and the bottom wall of the plug-in block abuts against the first guide surface, at which time the plug-in block moves to one side of the plug-in groove under the guidance of the first guide surface; and after the guide block is fully plugged into the guide groove, the plug-in block is plugged into the plug-in groove, thereby completing the installation of the prefabricated column and the concrete foundation.

[0037] A movable groove is provided in the top wall of the plug-in slot, and a movable block is movably installed in the movable groove; a first spring is arranged between the movable block and the side of the movable groove away from the installation slot, and the elastic force of the first spring is used to drive the movable plate to move toward the side away from the installation slot.

[0038] When the guide block is inserted into the guide groove, the plug-in block moves toward one side of the plug-in groove under the guidance of the first guide surface and abuts against the movable block; as the prefabricated column goes deeper, the movable block is forced to move into the movable groove and compress the first spring; and when the guide block is completely plugged into the guide groove and the plug-in block enters the plug-in groove; the movable block moves toward the side away from the movable groove under the elastic force of the first spring, so that the movable block abuts against the upper surface of the plug-in block; thereby completing the connection between the prefabricated column and the concrete foundation, and increasing the stability of the prefabricated column inserted in the installation groove.

[0039] The implementation principle of Example 1 of the present application is: When connecting the prefabricated column to the foundation, the prefabricated column is inserted into the installation groove. At this time, the plug-in block moves toward one side of the plug-in groove under the guidance of the first guide surface, so that the plug-in block can be inserted into the plug-in groove, thereby completing the connection between the prefabricated column and the foundation; and after the plug-in block is inserted into the plug-in groove, concrete is poured into the through hole, and then the steel wire rope is tightened with an anchor; prestress can be provided for the prefabricated column, and when natural disasters such as earthquakes occur, the taut steel wire rope can absorb and disperse the impact force, thereby reducing the damage to the structure.

[0040] Embodiment 2: The embodiment of the present application discloses a prestressed assembled building structure.

[0041] Reference Figure 3 and Figure 4 The difference between Example 2 of the present application and Example 1 is that: a first connecting groove is provided on the top of the plug-in block, a connecting block is movably installed in the first connecting groove, and a second connecting groove for plugging the connecting block is provided on the bottom wall of the movable block; a second guide surface is provided on the side of the connecting block close to the plug-in groove, and a positioning surface is provided on the side of the connecting block away from the plug-in groove, and the distance between the second guide surface and the positioning surface gradually increases from the side away from the first connecting groove toward the side close to the first connecting groove.

[0042] A second spring is arranged between the connecting block and the inner wall of the first connecting groove. The elastic force of the second spring is smaller than the elastic force of the first spring. The elastic force of the second spring is used to drive the connecting block to move toward a side away from the first connecting groove.

[0043] When the plug-in block is fully inserted into the plug-in slot, the elastic force of the first spring drives the movable block to move toward the side away from the movable slot; at this time, the movable block abuts against the second guide surface and guides the connecting block into the first connecting slot, so that the movable block moves toward the side of the prefabricated column; and when the first connecting slot and the second connecting slot are arranged opposite to each other, the connecting block is inserted into the second connecting slot under the elastic force of the second spring, so that the movable block can be connected to the plug-in block, thereby increasing or decreasing the stability of the prefabricated column inserted in the installation slot.

[0044] In addition, when the structure is subjected to external loads, the elastic force of the first spring can provide additional supporting force, further improving the earthquake resistance of the structure.

[0045] Embodiment 3: The embodiment of the present application discloses a prestressed assembled building structure.

[0046] Reference Figure 5The difference between Example 3 of the present application and Example 1 is that the prefabricated column includes a head end column, a tail block and a plurality of connecting blocks installed between the head end column and the tail block, the cross-sections of the head end column, the tail end column and the connecting column are all circular, and the head end column, the tail end column and the connecting column are all provided with connecting holes, and all the connecting holes are connected to form the above-mentioned through holes.

[0047] The anchor is installed on the head end column, and the sliding column is opened on the tail end column; in this embodiment, a positioning block (not shown in the figure) is provided on the outer wall of the tail end column, and a positioning groove for the positioning block to be plugged into the inner wall of the installation groove; the positioning block is plugged into the positioning groove so that the sliding groove and the plug-in groove are arranged opposite to each other, so that the plug-in block can be smoothly plugged into the plug-in groove, thereby improving the installation efficiency of the prefabricated column and the concrete foundation.

[0048] Reference Figure 6 A conical block is movably formed on one side of the connecting column, and a conical groove for inserting the conical block is provided on the adjacent connecting column; in this embodiment, the conical block is arranged at the end of the connecting column away from the mounting groove, and one end of the connecting hole is connected with the end of the conical block away from the connecting column; a plurality of flow channels are provided on the surface of the conical block, and the two ends of the flow channels are respectively connected with the outer wall of the connecting column and the connecting hole; when pouring concrete into the through hole, part of the concrete enters the flow channel, so that the two adjacent connecting columns can be connected, so that the prefabricated column is formed into one body.

[0049] Also refer to Figure 7 A mounting ring is installed on the inner wall of the connecting hole, and the outer wall of the mounting ring abuts against the inner wall of the connecting hole; a tightening block is provided on the wire rope, and the tightening block is used to abut against the bottom wall of the mounting ring.

[0050] A drawstring for connecting with the mounting ring is arranged in the flow channel, and a tightening piece is arranged on the side of the drawstring away from the mounting ring. When two adjacent connecting columns are connected, the tightening piece abuts against the outer walls of the two adjacent connecting columns.

[0051] The implementation principle of Example 3 of the present application is: When the anchor is used to tighten the wire rope, the clamping block will abut against the bottom wall of the mounting ring and provide an upward force to the mounting ring. Since the clamping piece is connected to the mounting ring through the pull rope, the clamping piece can be pressed against the outer walls of the two adjacent connecting columns to provide a support point for the prefabricated column, thereby preventing the connecting column from tipping over due to external loads.

[0052] This embodiment also discloses a construction method of a prestressed assembled building structure, which specifically includes the following steps: S1 pouring a concrete foundation, leveling the construction site, and pouring concrete on the construction site to form a concrete foundation, and then opening an installation groove at a corresponding position of the concrete foundation according to the installation position of the prefabricated column; S2 installs the prefabricated column and hoist it to the top of the installation slot to ensure the accuracy of the lifting point. During the hoisting process, operate the crane slowly and steadily to insert the prefabricated column into the installation slot. The plug-in block is inserted into the plug-in slot under the guidance of the guide block and the guide slot to prevent the prefabricated column from escaping from the installation slot.

[0053] S3 prestressing is applied, concrete is poured into the through hole, and when the concrete is not solidified, tensioning equipment (such as a jack) is used to tension the steel wire rope to keep it in a taut state, thereby improving the seismic resistance of the precast column.

[0054] S4, adhere to the installation position and connection quality of the precast columns, ensure that the tension and prestress of the wire rope meet the design requirements, and complete the installation of the precast columns and the concrete foundation.

[0055] The above are preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A prestressed assembled building structure, characterized in that: The invention comprises a concrete foundation (1) and a plurality of prefabricated columns (2), wherein the prefabricated columns (2) are provided with installation grooves (11) for inserting the prefabricated columns (2); the prefabricated columns (2) are provided with through holes (21), and the two ends of the through holes (21) are respectively connected to the two ends of the length of the prefabricated columns (2); a steel wire rope (3) is inserted into the through holes (21), and an anchor (4) for connecting to one end of the steel wire rope (3) is arranged on the top wall of the prefabricated columns (2); a plug-in block (5) is slidably installed at the bottom of the prefabricated columns (2), and the other end of the steel wire rope (3) is connected to the plug-in block (5); The inner side wall of the installation groove (11) is provided with a plugging groove (15) for plugging the plugging block (5), and the inner bottom wall of the installation groove (11) is provided with a guide block (13); the plugging block (5) is provided with a guide groove (51) for plugging the guide block (13), and when the guide block (13) is provided with a first guide surface (14), the first guide surface (14) is used to guide the plugging block (5) to be plugged into the plugging groove (15).

2. A prestressed assembled building structure according to claim 1, characterized in that: A movable groove (16) is formed on the top wall of the plug-in groove (15), a movable block (17) is movably mounted in the movable groove (16), a first spring (18) is provided between the movable block (17) and the movable groove (16), and the elastic force of the first spring (18) is used to drive the movable block (17) to move toward a side away from the movable groove (16).

3. A prestressed assembled building structure according to claim 2, characterized in that: The top wall of the plug-in block (5) is provided with a first connecting groove (53), a connecting block (54) is movably mounted in the first connecting groove (53), and the bottom wall of the movable block (17) is provided with a second connecting groove (171) for plugging the connecting block (54); a second spring (55) is provided between the connecting block (54) and the second connecting groove (171), the elastic force of the second spring (55) being used to drive the connecting block (54) to be plugged into the second connecting groove (171) in a normal state; and the connecting block (54) is provided with a second guide surface (56) for guiding the connecting block (54) to enter the first connecting groove (53).

4. A prestressed assembled building structure according to claim 1, characterized in that: A third spring (52) is provided between the plug-in block (5) and the prefabricated column (2), and the elastic force of the third spring (52) is used to drive the plug-in block (5) to move toward one side of the through hole (21).

5. The prestressed assembled building structure according to claim 1, characterized in that: The prefabricated column (2) comprises a head end column (23), a tail block, and a plurality of connecting columns (25) arranged between the head end column (23) and the tail block, the plug-in block (5) is slidably mounted on the tail block, and the anchor (4) is arranged on the head end column (23); a conical block (26) is integrally formed on one side of the connecting column (25), and adjacent connecting columns (25) are provided with conical grooves (27) for the conical blocks (26) to be plugged in; the head end column (23), the tail block, and the connecting column (25) are all provided with connecting holes (211) in the middle, and all the connecting holes (211) are connected to form the through hole (21).

6. A prestressed assembled building structure according to claim 5, characterized in that: The plug-in blocks (5) are provided in four groups, and the four groups of plug-in blocks (5) are arranged at intervals around the axis of the tail block; the steel wire rope (3) is connected to the four groups of plug-in blocks (5).

7. The prestressed assembled building structure according to claim 5, characterized in that: A plurality of flow channels (28) are provided on the surface of the conical block (26), and two ends of the flow channels (28) are respectively connected to the connection hole (211) and the outer wall of the connection column (25).

8. A prestressed assembled building structure according to claim 7, characterized in that: The conical block (26) is arranged at one end of the connecting column (25) away from the mounting groove (11); a mounting ring (61) is arranged in the connecting hole (211); the steel wire rope (3) is provided with a clamping block (63) for abutting against the bottom wall of the mounting ring (61); the flow channel (28) is provided with a pull rope (6) for connecting with the mounting ring (61); and the pull rope (6) is provided with a clamping piece (62) for abutting against the outer wall of the connecting column (25) at one end away from the mounting ring (61).

9. The prestressed assembled building structure according to claim 1, characterized in that: The inner bottom wall of the installation groove (11) is provided with a plurality of support blocks (12) for abutting against the bottom wall of the prefabricated column (2).

10. A construction method of a prestressed assembled building structure according to claims 1 to 9, characterized in that: The following steps are involved: S1 pouring a concrete foundation (1), leveling a construction site, and pouring concrete on the construction site to form a concrete foundation (1); S2 installs the prefabricated column (2), hoists the prefabricated column (2) to the top of the installation groove (11), and slowly inserts the prefabricated column (2) into the installation groove (11), and the plug-in block (5) is inserted into the plug-in groove (15) under the guidance of the guide block (13) in the installation groove (11); S3: applying prestress, using a tensioning device to tension the steel wire rope (3) so that the steel wire rope (3) is in a taut state; S4, completing the installation of the prefabricated column (2) and the concrete foundation (1).

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