Prefabricated composite constructional column and assembly structure thereof

Abstract

The utility model discloses a prefabricated combined constructional column and an assembling structure thereof. The prefabricated combined constructional column comprises an upper column body and a lower column body, the upper column body is of a solid structure, upper steel bars are installed in the upper column body, the ends of the upper steel bars protrude out of the top end face of the upper column body to be inserted into an upper structural beam, and the interior of the lower column body is hollow. A pouring hole is formed in the side wall of the lower column body so that the interior of the lower column body can be subjected to secondary pouring, concrete of the side wall of the lower column body and concrete of the upper column body are integrally poured and formed, a lower steel bar is installed in the lower column body, and the end of the lower steel bar protrudes out of the bottom end face of the lower column body to be inserted into the lower structural beam. According to the prefabricated combined constructional column, the prefabricated combined constructional column and a main body structure can be constructed synchronously, formwork erecting is not needed, and the concrete pouring amount is greatly reduced. After being connected with a corresponding structural beam, the prefabricated combined constructional column has the advantages of being good in anti-seismic performance, simple in structure and convenient to construct.

Description

Technical Field

[0001] The utility model relates to the technical field of building engineering structures, in particular to a prefabricated combined structural column and an assembly structure thereof. Background Art

[0002] In order to improve the stability and earthquake resistance of buildings, structural columns are generally set in the infill walls of house buildings. Infill walls are generally built after the main structure is constructed. As part of the infill wall, the structural columns are usually constructed when the wall is built. This requires the longitudinal reinforcement of the structural column to be implanted into the structural beams above and below it, which not only damages the original structure, but also takes time and effort to support the formwork and cast the structural column. Many construction units hope that the structural column can reduce the formwork and casting amount, and it is best to be constructed at the same time as the main structure. The existing technology has not yet solved the problem of time-consuming and labor-intensive formwork and casting of structural columns. Utility Model Content

[0003] The main purpose of the utility model is to provide a prefabricated combined structural column and an assembly structure thereof, aiming to reduce the formwork and casting amount of the structural column.

[0004] To achieve the above-mentioned purpose, the utility model provides a prefabricated composite structural column, including an upper column and a lower column, wherein the upper column is a solid structure and an upper steel bar is installed inside it, the end of the upper steel bar protrudes out of the top end surface of the upper column to be inserted into the upper structural beam, the interior of the lower column is hollow, and a casting hole is opened on the side wall of the lower column for secondary casting of the internal hollow, the side wall concrete of the lower column and the concrete of the upper column are cast and formed as a whole, the lower steel bar is installed inside the lower column, and the end of the lower steel bar protrudes out of the bottom end surface of the lower column to be inserted into the lower structural beam.

[0005] Preferably, the prefabricated composite structural column also includes a partition located at the bottom of the lower column body to prevent the deformation of the upper structural beam of the structural column from being directly transmitted to the lower structural beam. The partition is used to fit the top of the lower structural beam, and the lower steel bars pass through the partition and the ends extend out to be connected to the lower structural beam.

[0006] Preferably, the width of the partition is greater than the width of the lower column, the partition completely seals the hollow end surface of the lower column, and the thickness of the partition is 40 mm to 60 mm.

[0007] Preferably, grouting sleeves are arranged at the four corners of the bottom end of the upper column to connect the longitudinal reinforcements of the upper column and the lower column, and a groove is arranged in the middle of the bottom end of the upper column, and the depth of the groove is not less than 30 mm.

[0008] Preferably, the upper steel bars include multiple upper column longitudinal bars, upper column stirrups sleeved outside the multiple upper column longitudinal bars, and upper column oblique tension bars connected to the upper column U-shaped shear bars, and the upper ends of the upper column longitudinal bars protrude outside the top end surface of the upper column to be inserted into the upper structural beam.

[0009] Preferably, the upper steel bar also includes an upper U-shaped shear reinforcement, the upper end of the upper U-shaped shear reinforcement is fixed to the upper column oblique tension reinforcement, and the lower end of the upper U-shaped shear reinforcement extends out of the bottom groove of the upper column to the hollow structure of the lower column.

[0010] Preferably, the lower steel bars include a plurality of lower column longitudinal bars and lower column stirrups sleeved outside the plurality of lower column longitudinal bars, and the ends of the plurality of lower column longitudinal bars protrude outside the bottom end surface of the lower column to be connected to the internal steel bars of the lower structural beam.

[0011] Preferably, the wall thickness of the lower cylinder is 10 mm to 30 mm, and the height is 400 mm to 600 mm.

[0012] The utility model further proposes a prefabricated composite structural column assembly structure, comprising the above-mentioned prefabricated composite structural column, and also comprising an upper structural beam and a lower structural beam respectively connected to the upper and lower ends of the prefabricated composite structural column.

[0013] Preferably, the internal steel bars of the lower structure beam include horizontal stirrups in the lower structure beam, oblique tension bars in the lower structure beam and U-shaped shear bars in the lower structure beam, and the steel bars of the U-shaped shear bars in the lower structure beam extend into the hollow structure of the lower column of the prefabricated composite structural column.

[0014] The prefabricated composite structural column proposed by the utility model can be constructed synchronously with the main structure, does not require formwork, and greatly reduces the amount of concrete pouring. After the prefabricated composite structural column is connected with the corresponding structural beam, it has the advantages of good seismic performance, simple structure, and convenient construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural schematic diagram of the prefabricated composite structural column assembly structure of the utility model;

[0016] Figure 2 This is a bottom view of the lower end of the upper column of the prefabricated composite structural column of the utility model;

[0017] Figure 3 It is a top view of the upper end of the upper column of the prefabricated composite structural column of the utility model;

[0018] Figure 4 It is a top view of the lower column of the prefabricated composite structural column of the utility model;

[0019] Figure 5It is a schematic diagram of the structure of the U-shaped shear reinforcement in the prefabricated composite structural column of the utility model.

[0020] In the figure, 1-upper column, 2-lower column, 3-partition, 4-lower structural beam, 5-upper structural beam, 6-grouting sleeve, 7-casting hole, 11-upper column longitudinal reinforcement, 121-upper column stirrups, 122-upper column oblique tension reinforcement, 13-upper U-shaped shear reinforcement, 21-lower column longitudinal reinforcement, 22-lower column stirrups, 411-horizontal stirrups in lower structural beam 4, 412-oblique tension reinforcement in the lower structural beam, 43-U-shaped shear reinforcement in the lower structural beam.

[0021] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0022] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0023] It should be noted that in the description of the present invention, the terms "lateral", "longitudinal", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0024] The utility model provides a prefabricated combined structural column.

[0025] Reference Figures 1 to 4 In the preferred embodiment, a prefabricated composite structural column includes an upper column 1 and a lower column 2, wherein the upper column 1 is a solid structure and an upper steel bar is installed inside it, and the end of the upper steel bar protrudes out of the top end surface of the upper column 1 to be inserted into the upper structural beam 5, and the interior of the lower column 2 is hollow (the hollow area extends all the way to its bottom end surface), and a casting hole 7 is opened on the side wall of the lower column 2 for secondary casting of the internal hollow, and the side wall concrete of the lower column 2 and the concrete of the upper column 1 are integrally cast and formed, and a lower steel bar is installed inside the lower column 2, and the end of the lower steel bar protrudes out of the bottom end surface of the lower column 2 to be inserted into the lower structural beam 4.

[0026] Further, refer to Figure 1The prefabricated composite structural column also includes a partition 3 at the bottom of the lower column 2 to prevent the deformation of the upper structural beam 5 of the structural column from being directly transmitted to the lower structural beam 4. The partition 3 is used to fit the top surface of the lower structural beam 4. The lower steel bar passes through the partition 3 and the end extends out to connect with the lower structural beam 4. The partition 3 is a soft deformable material to prevent the prefabricated structural column from directly transmitting the force to the lower structural beam 4 due to the deformation of the upper structural beam 5.

[0027] Specifically, the width of the partition 3 is greater than the width of the lower column 2, and the partition 3 completely closes the hollow end surface of the lower column 2. The thickness of the partition 3 is 40 mm to 60 mm. The distance between the outer side of the partition 3 and the outer side wall of the lower column 2 is 100 mm. The partition 3 is provided with holes for the lower steel bars to pass through and connect with the lower structural beam 4.

[0028] In this embodiment, grouting sleeves 6 are provided at the four corners of the bottom end of the upper column 1 to connect the longitudinal reinforcements of the upper column 1 and the lower column 2, and a groove is provided in the middle of the bottom end of the upper column 1, and the depth of the groove is not less than 30 mm. By providing the groove, the contact surface at the junction of the upper column 1 and the lower column 2 can be increased, and after pouring concrete through the pouring hole 7 of the lower column 2, the upper and lower columns can be better connected as a whole, and the horizontal resistance at the junction can be enhanced.

[0029] Specifically, refer to Figures 1 to 3 and Figure 5 The upper steel bars include a plurality of upper column longitudinal bars 11, upper column stirrups 121 sleeved outside the plurality of upper column longitudinal bars 11, and upper column oblique tension bars 122 (tied or welded) connecting the two upper column longitudinal bars 11. The upper ends of the upper column longitudinal bars 11 protrude outside the top end surface of the upper column 1 to be inserted into the upper structural beam 5.

[0030] Furthermore, the upper reinforcement also includes an upper U-shaped shear reinforcement 13, the upper end of which is fixed to the upper column oblique tie bar 122, and the lower end of which extends out of the bottom groove of the upper column 1 to the hollow structure of the lower column 2. The upper U-shaped shear reinforcement 13 can further improve the seismic performance of the prefabricated composite structural column.

[0031] Specifically, refer to Figure 1 and Figure 4 The lower reinforcement includes a plurality of lower column longitudinal bars 21 and lower column stirrups 22 sleeved outside the plurality of lower column longitudinal bars 21. The ends of the plurality of lower column longitudinal bars 21 protrude outside the bottom end surface of the lower column 2 to connect with the internal reinforcement of the lower structural beam 4. The upper column longitudinal bars 11 and the lower column longitudinal bars 21 are connected by the grouting sleeve 6 at the lower end of the upper column 1. The spacing of the lower column stirrups 22 is not greater than 100 mm.

[0032] In this embodiment, the wall thickness of the lower column 2 is 10 mm to 30 mm, and the height is 400 mm to 600 mm.

[0033] When the tie bars between the prefabricated composite structural columns and the masonry walls are connected, holes can be reserved in the middle of the prefabricated structural column bodies, and the tie bars of the subsequent masonry walls can pass through the reserved holes and be grouted to connect with the prefabricated columns.

[0034] The installation process of this prefabricated composite structural column is as follows.

[0035] 1. Transport the prefabricated composite structural column to the designated area;

[0036] 2. Support the formwork of the lower structural beam 4, install the internal steel bars of the lower structural beam 4, determine the position of the structural column, place the partition 3 and the lower column 2 on it at the position of the structural column on the lower structural beam surface, and the steel bars of the U-shaped shear bars 43 in the lower structural beam pass through the partition 3 and extend into the lower part of the prefabricated composite structural column. At the same time, the lower column longitudinal bars 21 pass through the partition 3 and are tied and fixed with the steel bars of the lower structural beam 4;

[0037] 3. Pour concrete of the lower structural beam 4 so that the lower column 2 of the precast column and the lower structural beam 4 form a force-bearing whole;

[0038] 4. Hoist the upper column 1 onto the lower column 2, then tie the internal reinforcement of the upper structural beam 5, and support its formwork. Extend the upper column longitudinal reinforcement 11 into the upper structural beam 5, and pour the concrete of the upper structural beam 5, so that the upper column 1 and the upper structural beam 5 form a force-bearing whole;

[0039] 5. Inject grout into the grouting sleeve at the bottom of the upper column 1 to connect the upper column 1 and the lower column 2 into a whole;

[0040] 6. After the concrete curing of the upper structural beam 5 is completed, the partition 3 is removed, and fine stone concrete (C30 fine stone concrete) is filled between the lower column 2 and the lower structural beam 4 and the hollow part of the lower column 2 through the casting hole 7. Because the filling is fine stone concrete, no formwork is required for the position where the partition 3 is removed.

[0041] The prefabricated composite structural column proposed in this embodiment can be constructed synchronously with the main structure, without the need for formwork, and the amount of concrete pouring is greatly reduced. After the prefabricated composite structural column is connected with the corresponding structural beam, it has the advantages of good earthquake resistance, simple structure, and convenient construction.

[0042] The utility model further proposes a prefabricated combined structural column assembly structure.

[0043] Reference Figure 5In this preferred embodiment, a prefabricated composite structural column assembly structure includes a prefabricated composite structural column, and also includes an upper structural beam 5 and a lower structural beam 4 connected to the upper and lower ends of the prefabricated composite structural column. The specific structure and beneficial effects of the prefabricated composite structural column refer to the above embodiment and will not be repeated here.

[0044] Specifically, the internal steel bars of the lower structure beam 4 include horizontal stirrups 411 in the lower structure beam, oblique tension bars 412 in the lower structure beam, and U-shaped shear bars 43 in the lower structure beam. The steel bars of the U-shaped shear bars 43 in the lower structure beam extend into the hollow structure of the lower column 2 of the prefabricated composite structural column.

[0045] The lower structure beam 4 uses no less than three horizontal hoops in the lower structure beam 4 and oblique tension bars 412 in the lower structure beam. The U-shaped shear bars 43 in the lower structure beam are welded or tied to the oblique tension bars 412 in the lower structure beam.

[0046] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A prefabricated composite structural column, characterized in that: It includes an upper column and a lower column, wherein the upper column is a solid structure and an upper steel bar is installed inside it, the end of the upper steel bar protrudes out of the top end surface of the upper column to be inserted into the upper structural beam, the interior of the lower column is hollow, and a casting hole is opened on the side wall of the lower column for secondary casting of the internal hollow, the side wall concrete of the lower column and the concrete of the upper column are cast in one piece, the lower steel bar is installed inside the lower column, and the end of the lower steel bar protrudes out of the bottom end surface of the lower column to be inserted into the lower structural beam.

2. The prefabricated composite structural column according to claim 1, characterized in that: It also includes a partition located at the bottom of the lower column to prevent the deformation of the structural beam on the structural column from being directly transmitted to the lower structural beam. The partition is used to fit with the top of the lower structural beam, and the lower steel bars pass through the partition and the ends extend out to be connected with the lower structural beam.

3. The prefabricated composite structural column according to claim 2, characterized in that: The width of the partition is greater than the width of the lower column, and the partition completely seals the hollow end surface of the lower column. The thickness of the partition is 40 mm to 60 mm.

4. The prefabricated composite structural column according to claim 1, characterized in that: Grouting sleeves are arranged at the four corners of the bottom end of the upper column to connect the longitudinal reinforcements of the upper column and the lower column. A groove is arranged in the middle of the bottom end of the upper column, and the depth of the groove is not less than 30 mm.

5. The prefabricated composite structural column according to claim 4, characterized in that: The upper steel bars include a plurality of upper column longitudinal bars, upper column stirrups sleeved outside the plurality of upper column longitudinal bars, and upper column oblique tension bars connecting two upper column longitudinal bars. The upper ends of the upper column longitudinal bars protrude outside the top end surface of the upper column to be inserted into the upper structural beam.

6. The prefabricated composite structural column according to claim 5, characterized in that: The upper steel bar also includes an upper U-shaped shear reinforcement, the upper end of which is fixed to the upper column oblique reinforcement, and the lower end of which extends out of the bottom groove of the upper column to the hollow structure of the lower column.

7. The prefabricated composite structural column according to claim 1, characterized in that: The lower steel bars include a plurality of lower column longitudinal bars and lower column stirrups sleeved outside the plurality of lower column longitudinal bars. The ends of the plurality of lower column longitudinal bars protrude outside the bottom end surface of the lower column to be connected with the internal steel bars of the lower structural beam.

8. The prefabricated composite structural column according to any one of claims 1 to 7, characterized in that: The wall thickness of the lower column is 10mm-30mm, and the height is 400mm-600mm.

9. A prefabricated composite structural column assembly structure, characterized in that: It comprises the prefabricated composite structural column as claimed in any one of claims 1 to 8, and also comprises an upper structural beam and a lower structural beam respectively connected to the upper and lower ends of the prefabricated composite structural column.

10. The prefabricated composite structural column assembly structure according to claim 9, characterized in that: The internal steel bars of the lower structure beam include horizontal stirrups, oblique tension bars and U-shaped shear bars. The steel bars of the U-shaped shear bars extend into the hollow structure of the lower column of the prefabricated composite structural column.

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