Prefabricated cavity column with bracket and mounting system of cavity column

Abstract

The utility model discloses a prefabricated cavity column with a bracket and an installation system of the cavity column, and relates to the technical field of constructional engineering. The cavity column sequentially comprises a column body and a cattle leg part from bottom to top, and the column body and the cattle leg part jointly form the cavity column; a vertical through cavity is formed in the column body and the cattle leg part; a plurality of vertically-extending cavity column connecting ribs are further arranged in the column body, the cavity column connecting ribs penetrate through the cattle leg parts and extend to the positions above the cattle leg parts, and connecting rib inserting groove barrels in one-to-one correspondence with the cavity column connecting ribs are arranged at the bottom of the column body. According to the utility model, the prefabricated building form of the prefabricated column is reserved, the interior of the whole prefabricated column is of a cavity structure, and a solid beam column is formed in a concrete pouring form after prefabricated building, so that the building efficiency is improved compared with the traditional pure cast-in-place form; compared with a traditional prefabricated column building mode, the overall anti-seismic strength and the stress strength of a built building are enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of building engineering, in particular to a prefabricated cavity column with a corbel and an installation system of the cavity column. Background Art

[0002] With the development of technology, prefabricated building parts have become the main construction method for construction projects, such as prefabricated columns, prefabricated beams, floor slabs, etc.

[0003] The precast columns in the prior art are usually made hollow only at the connection nodes, and then during construction, concrete is only poured into the connection nodes. The advantage of this type of precast column is that it is easy to build. However, since the solid precast columns are connected by pouring concrete nodes, the connection between the precast columns and the nodes is not a continuous connection. Therefore, the seismic strength of the traditional solid precast columns themselves and the connection strength of the precast columns between floors are not as high as the strength of cast-in-place beams and columns. Utility Model Content

[0004] The purpose of the utility model is to provide a prefabricated cavity column with a corbel and an installation system for the cavity column. In addition to retaining the prefabricated construction form of the prefabricated column, the entire interior of the prefabricated column is a cavity structure. After the prefabricated construction, concrete pouring is used to form a solid beam column. Compared with the traditional pure cast-in-place form, the construction efficiency is improved; compared with the traditional prefabricated column construction form, the overall earthquake resistance and force strength of the constructed building are enhanced.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a prefabricated cavity column with a corbel, which includes a column body and a corbel portion from bottom to top, and the column body and the corbel portion together form a cavity column; a vertically penetrating cavity is arranged in the column body and the corbel portion; a plurality of vertically extending cavity column connecting ribs are also arranged in the column body, and the cavity column connecting ribs pass through the corbel portion and extend to the top of the corbel portion, and a connecting rib slot tube corresponding to the cavity column connecting ribs is arranged at the bottom of the column body.

[0006] Preferably, transversely extending corbel longitudinal reinforcements are arranged in the corbel portion and respectively on the front and rear sides of the cavity; transversely extending corbel bent steel bars are arranged in the corbel portion and respectively on the left and right sides of the cavity, and all the corbel bent steel bars are transitionally connected through corbel tie rings.

[0007] Preferably, a plurality of vertically extending side steel bars are arranged in the column, and the top ends of the side steel bars extend to the inside of the corbel; and the plurality of side steel bars are tied and connected by side steel bar tie bars.

[0008] Preferably, a first hanging nail is pre-buried at the top of the corbel part, and a second hanging nail is arranged at the front side of the column.

[0009] Preferably, the column is also provided with a vent hole communicating with the cavity.

[0010] Preferably, embedded nuts are provided on both the front and rear sides of the corbel part.

[0011] Preferably, the connecting rib slot tubes are connected by means of slot tube tie ribs.

[0012] Preferably, a system for installing prefabricated cavity columns with corbels comprises cavity columns, prefabricated beams, floor slabs and frame beams; the cavity columns are arranged in a matrix, prefabricated beams are arranged between the corbels of two adjacent cavity columns on the left and right, and the floor slabs are arranged between two corresponding adjacent prefabricated beams in the front and back; the frame beams are arranged between two corresponding adjacent cavity columns in the front and back; a first grouting layer is cast in the cavity, and a second grouting layer is cast on the top of the corbels and in the space between the prefabricated beams, the floor slabs and the frame beams; the cavity columns between the upper and lower layers are connected by corresponding cavity column connecting ribs and connecting rib slot tubes.

[0013] Preferably, a plurality of node core column bars extending up and down are arranged in the second grouting layer, and the plurality of node core column bars are connected by binding with core column stirrups, and the upper and lower ends of the node core column bars extend into the cavities of the corresponding cavity columns respectively.

[0014] Preferably, a plurality of core column longitudinal reinforcements are arranged in the cavity, and the plurality of core column longitudinal reinforcements are connected by binding with circular stirrups.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The utility model retains the prefabricated construction form of prefabricated columns. The interior of the prefabricated columns are all hollow structures. After prefabrication, concrete pouring is used to form solid beams and columns. Compared with the traditional pure cast-in-place form, the construction efficiency is improved; compared with the traditional prefabricated column construction form, the overall earthquake resistance and stress strength of the constructed building are enhanced.

[0017] 2. The utility model has a prefabricated column with a built-in corbel to facilitate direct bearing of prefabricated beams during construction, which can greatly improve the safety of operations during construction and installation, and avoid collapse due to insufficient support load; the setting of a cavity column can effectively reduce the weight of the prefabricated column, which is convenient for hoisting and installation by construction personnel. At the same time, the setting of a cavity in the prefabricated column can greatly improve the safety reserve during earthquakes by utilizing the shear resistance of post-cast concrete, improve the integrity of the building, and its earthquake resistance is much higher than that of traditional solid prefabricated columns, which can be truly equivalent to cast-in-place. In addition, high-strength concrete is poured into the cavity of the prefabricated column to facilitate improving the ability of the frame column to withstand vertical loads, similar to a steel tube concrete column or a steel tube concrete column, which can reduce the cross-sectional size of the frame column and reduce the project cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is an appearance diagram of a prefabricated cavity column with a corbel according to the utility model;

[0019] Figure 2 This is a planar structural diagram of a prefabricated cavity column with a corbel according to the utility model;

[0020] Figure 3 This is the reinforcement diagram of the prefabricated cavity with corbels of the utility model;

[0021] Figure 4 For this utility model Figure 3 A magnified view of part A in FIG.

[0022] Figure 5 This is the reinforcement diagram of the corbel part of the utility model;

[0023] Figure 6 It is the reinforcement diagram of the column of the utility model;

[0024] Figure 7 This is the installation node diagram of the prefabricated cavity column with corbels of the utility model (the node between the cavity column and the frame beam);

[0025] Figure 8 This is the installation node diagram of the prefabricated cavity column with corbels of the utility model (cavity column, prefabricated beam and floor slab node);

[0026] Fig. 9 This is the installation node diagram of the prefabricated cavity column with corbels of the utility model.

[0027] In the figure:

[0028] 11-column, 12-column leg, 13-connecting rib slot tube, 14-embedded nut, 15-cavity,

[0029] 21-corbel longitudinal reinforcement, 22-corbel bent reinforcement, 23-corbel tie ring, 24-cavity column connecting reinforcement, 25-side reinforcement, 26-side reinforcement tie reinforcement, 27-slot tube tie reinforcement,

[0030] 3- The first hanging nail,

[0031] 4- The second hanging nail,

[0032] 5- Ventilation hole,

[0033] 6- First grouting layer,

[0034] 71-node core column reinforcement, 72-core column stirrups, 73-core column longitudinal reinforcement, 74-circular stirrups,

[0035] 8- Paddle board layer,

[0036] 91-precast beam, 92-floor slab, 93-frame beam,

[0037] 10- Second grouting layer. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0039] For the convenience of description, the coordinate system is defined as Figure 5 As shown, the left-right direction is the horizontal direction, the front-back direction is the longitudinal direction, and the up-down direction is the vertical direction.

[0040] like Figure 1-6 As shown, a prefabricated cavity column with a corbel includes a column body 11 and a corbel portion 12 from bottom to top, and the column body 11 and the corbel portion 12 together form a cavity column; a vertically penetrating cavity 15 is provided in the column body 11 and the corbel portion 12, and the cavity 15 is preferably configured to be an axially vertically extending column; a plurality of vertically extending cavity column connecting ribs 24 are also provided in the column body 11, and the cavity column connecting ribs 24 pass through the corbel portion 12 and extend to the top of the corbel portion 12, and a connecting rib slot tube 13 corresponding to the cavity column connecting ribs 24 is provided at the bottom of the column body 1.

[0041] Specifically in the present embodiment, the cavity column connecting ribs 24 are 12 in total, with 3 in each group, forming 4 groups in total. The four groups of cavity column connecting ribs 24 are evenly distributed at the four corners of the column 11 .

[0042] The corbel portion 12 is provided with transversely extending corbel longitudinal reinforcements 21 at the front and rear sides of the cavity 15; the corbel portion 12 is provided with transversely extending corbel bent reinforcements 22 at the left and right sides of the cavity 15, and all the corbel bent reinforcements 22 are transitionally connected by corbel tie rings 23. Specifically in this embodiment, at least two corbel tie rings 23 are used and are evenly arranged up and down, the corbel tie rings 23 are coaxially arranged with the cavity 15, and the corbel bent reinforcements 22 are fixedly connected with the corbel tie rings 23 by binding with metal strips.

[0043] A plurality of vertically extending side steel bars 25 are arranged in the column 11, and the top ends of the side steel bars 25 extend to the inside of the corbel portion 12; preferably, the plurality of side steel bars 25 are evenly arranged along the circumference of the cavity 15, and the plurality of side steel bars 25 are tied and connected by side steel bar tie bars 26, and the side steel bar tie bars 26 are multiple and evenly arranged along the extension direction of the side steel bars 25.

[0044] Further, in order to facilitate demoulding and lifting (such as Figure 2 As shown in the figure, the top of the corbel 12 is pre-buried with a first hanging nail 3, which is located at the top of the entire cavity column, which is convenient for construction and lifting; the front side of the column 11 is provided with a second hanging nail 4. Due to the high height of the cavity column, in order to facilitate demoulding, the cavity column mold model is designed to be flat, so the cast cavity column is flat. In order to facilitate the removal of the cast cavity column from the mold, the second hanging nail 4 is pre-buried in the front side of the column 11, so that the second hanging nail 4 is located above the cavity column in a flat state, which is convenient for direct lifting. Preferably, two first hanging nails 3 are used and are respectively located on the front and rear sides of the cavity 15; two second hanging nails 4 are used and are respectively set at the upper and lower ends of the front side of the column 11.

[0045] Furthermore, the column 11 is also provided with a vent hole 5 connected to the cavity 15. During construction, after pouring concrete into the cavity 15, some gas accumulated in the cavity 15 can be discharged more quickly through the vent hole 5, so that the concrete pouring is more compact and the concrete pouring strength is guaranteed. In this embodiment, two vent holes 5 are provided and are respectively distributed in the middle positions of the front and rear sides of the main body 11. A metal column is provided in the vent hole 5 as a support to ensure that the column will not reduce the strength due to the opening of the vent hole 5.

[0046] Specifically in the present embodiment, embedded nuts 14 are provided on both the front and rear sides of the corbel part 12. Preferably, two embedded nuts 14 are provided on each of the front and rear sides of the corbel part 12, and the corresponding two embedded nuts 14 are symmetrically arranged on the left and right.

[0047] Furthermore, the connecting rib slot tubes 13 are tied and connected by the slot tube tie ribs 27 to enhance the overall force strength and connection strength of the slot tube tie ribs 27 .

[0048] like Figure 7-9 As shown, a prefabricated cavity column installation system with corbels includes a cavity column, a prefabricated beam 91, a floor slab 92 and a frame beam 93; the cavity columns are arranged in a matrix, a prefabricated beam 91 is set between the corbels 12 of two adjacent cavity columns on the left and right, and a floor slab 92 is set between two corresponding adjacent prefabricated beams 91 in front and back; a frame beam 93 is set between two corresponding adjacent cavity columns in front and back; a first grouting layer 6 is cast in the cavity 15, and the cavity column and the first grouting layer 6 are superimposed to form a complete solid column. A second grouting layer 10 is cast on the top of the corbel 12 and in the space between the prefabricated beam 91, the floor slab 92 and the frame beam 93; the cavity columns between the upper and lower layers are connected by corresponding cavity column connecting ribs 24 and connecting rib slot tubes 13.

[0049] It should be noted that there is a second grouting layer 10 between the cavity columns of the upper and lower layers, and the cavity column connecting ribs 24 of the lower layer extend to the top of the second grouting layer 10 and are plugged into the connecting rib slots 13 corresponding to the cavity columns of the upper layer.

[0050] Furthermore, a seat layer 8 is provided between the second grouting layer 10 and the upper cavity column to increase the connection strength between the second grouting layer 10 and the cavity column.

[0051] In order to prevent the precast beam 91 from colliding with the corbel part 12 and causing cracking during hoisting, a cement mortar layer is provided at the overlap of the corbel part 12 and the precast beam, so that the precast beam 91 can be overlapped without colliding with the corbel part 12. A wooden gasket or a concrete gasket is provided in the cement mortar layer, and the thickness of the wooden gasket or the concrete gasket is the same as that of the cement mortar layer, so that the gasket supports and prevents the cement mortar layer from being squeezed out due to pressure after the precast beam 91 is overlapped on the corbel part 12.

[0052] Furthermore, a plurality of node core column bars 71 extending up and down are arranged in the second grouting layer 10, and the plurality of node core column bars 71 are connected by binding with core column hoop bars 72, and the upper and lower ends of the node core column bars 71 extend into the corresponding cavity column 15. The purpose of setting the node core column bars 71 is to strengthen the node connection strength between the cavity column, the first grouting layer 6, and the second grouting layer 10, and improve the earthquake resistance.

[0053] It should be noted that during construction, a steel cage can be formed by first binding the node core column reinforcement 71 and the core column stirrups 72, and the steel cage can be placed before or after pouring concrete. It is preferably placed after pouring concrete. The advantage of this is that the concrete is denser after pouring, ensuring the connection strength and density of the first grouting layer 6 and the second grouting layer 10 formed after pouring concrete.

[0054] Furthermore, a plurality of core column longitudinal bars 73 are arranged in the cavity 15, and the plurality of core column longitudinal bars 73 are connected by binding with circular stirrups 74. The core column longitudinal bars 73 are used to strengthen the support strength of the first grouting layer 6. Similarly, the steel cage formed by binding the core column longitudinal bars 73 and the circular stirrups 74 is lowered before or after pouring concrete.

[0055] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A prefabricated cavity column with corbels, characterized in that: From bottom to top, it includes a column and a corbel portion, which together form a cavity column; a vertically penetrating cavity is arranged in the column and the corbel portion; a plurality of vertically extending cavity column connecting ribs are also arranged in the column, and the cavity column connecting ribs pass through the corbel portion and extend to the top of the corbel portion, and a connecting rib slot tube corresponding to the cavity column connecting ribs is arranged at the bottom of the column.

2. A prefabricated cavity column with corbels according to claim 1, characterized in that: Transversely extending corbel longitudinal reinforcements are arranged in the corbel part and on the front and rear sides of the cavity respectively; transversely extending corbel bent steel bars are arranged in the corbel part and on the left and right sides of the cavity respectively, and all the corbel bent steel bars are transitionally connected by corbel tie rings.

3. The prefabricated cavity column with corbels according to claim 1, characterized in that: A plurality of vertically extending side steel bars are arranged in the column, and the top ends of the side steel bars extend to the inside of the corbel; and the plurality of side steel bars are tied and connected by side steel bar tie bars.

4. The prefabricated cavity column with corbels according to claim 1, characterized in that: A first hanging nail is pre-buried on the top of the corbel part, and a second hanging nail is arranged on the front side of the column.

5. The prefabricated cavity column with corbels according to claim 1, characterized in that: The column is also provided with a vent hole communicated with the cavity.

6. The prefabricated cavity column with corbels according to claim 1, characterized in that: Embedded nuts are arranged on the front and rear sides of the corbel part.

7. The prefabricated cavity column with corbels according to claim 1, characterized in that: The connecting rib slot tubes are connected by means of slot tube tie ribs.

8. An installation system for a prefabricated cavity column with a corbel according to any one of claims 1 to 7, characterized in that: It includes cavity columns, precast beams, floor slabs and frame beams; the cavity columns are arranged in a matrix, precast beams are set between the corbels of two adjacent cavity columns on the left and right, and the floor slabs are set between two corresponding adjacent precast beams in front and back; the frame beams are set between two corresponding adjacent cavity columns in front and back; a first grouting layer is cast in the cavity, and a second grouting layer is cast on the top of the corbel and in the space between the precast beams, the floor slabs and the frame beams; the cavity columns between the upper and lower layers are connected by corresponding cavity column connecting ribs and connecting rib slot tubes.

9. The installation system of the prefabricated cavity column with corbels according to claim 8, characterized in that: A plurality of node core column bars extending up and down are arranged in the second grouting layer, and the plurality of node core column bars are connected by binding with core column stirrups, and the upper and lower ends of the node core column bars extend into the cavities of the corresponding cavity columns respectively.

10. The installation system of the prefabricated cavity column with corbels according to claim 8, characterized in that: A plurality of core column longitudinal reinforcements are arranged in the cavity, and the plurality of core column longitudinal reinforcements are connected by binding with circular stirrups.

Images