Prefabricated column composite structure

Abstract

The invention provides a prefabricated column composite structure, and belongs to the technical field of prefabricated column composite structures, the prefabricated column composite structure comprises a plurality of groups of prefabricated double-layer bracket columns, a plurality of groups of prefabricated bracket beams, a plurality of groups of prefabricated wafer plates and a plurality of groups of prefabricated double-T plates, and each group of prefabricated double-layer bracket columns comprises a prefabricated lower column and a prefabricated upper column; a plurality of sets of vertical load-bearing steel bars are embedded in the prefabricated lower column and the prefabricated upper column, four sets of embedded parts are arranged on the bottom side of the prefabricated lower column, four sets of L-shaped foundation bolts are arranged on the bottom side of the prefabricated lower column, one ends of the four sets of embedded parts are bound with vertical load-bearing steel bar bodies, the prefabricated lower column is located below the prefabricated upper column, and the prefabricated lower column and the prefabricated upper column are connected through the vertical load-bearing steel bars. The connecting position of the prefabricated lower column and the prefabricated upper column is hollowed out, the multiple sets of prefabricated bracket beams are located between the two sets of prefabricated double-layer bracket columns respectively, two sets of prefabricated bracket beams are connected through the multiple sets of prefabricated waffle plates, and the other two sets of prefabricated bracket beams are connected through the multiple sets of prefabricated double-T plates. During installation, the prefabricated column is quickly positioned through the embedded part.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of prefabricated column combination structure, in particular to a prefabricated column combination structure. BACKGROUND

[0002] In large-scale building construction, in order to improve construction efficiency, ensure building quality and achieve the goal of green construction, construction units often widely use prefabricated columns, beams, plates and other prefabricated components for combination construction. However, the traditional device does not have the function of rapid installation, which leads to the complexity and instability of the traditional prefabricated column connection method in the construction process, and the connection precision of the prefabricated lower column and the prefabricated upper column is difficult to control. When binding the reinforcement, it is difficult to conveniently connect each component, making the installation process cumbersome and prone to deviation. Moreover, the traditional device usually relies on on-site high formwork operation to provide support for the construction process. This method not only requires a large amount of formwork materials such as wood and steel, resulting in resource waste and cost increase, but also requires a large amount of manual labor for the construction of high formwork and its dismantling process, which has a long construction period and is difficult to manage. In addition, high formwork operation has high safety risks and is prone to safety accidents. SUMMARY

[0003] In view of the above-mentioned problems, in combination with the first aspect of the present application, the present application provides a prefabricated column combination structure, which comprises: A prefabricated column combination structure comprises a plurality of prefabricated double-layer corbel columns, two prefabricated waffle support beams, two prefabricated double-T support beams, a plurality of prefabricated waffle plates and a plurality of prefabricated double-T plates. Each of the prefabricated double-layer corbel columns comprises a prefabricated lower column and a prefabricated upper column. A plurality of vertical load-bearing steel bars are embedded in the prefabricated lower column and the prefabricated upper column. Four embedded parts are provided on the bottom side of the prefabricated lower column. Four L-shaped anchor bolts are provided on the bottom side of the prefabricated lower column. One end of each of the four embedded parts is bound to the vertical load-bearing steel bar. The prefabricated lower column is located below the prefabricated upper column. The prefabricated lower column and the prefabricated upper column are connected by the vertical load-bearing steel bars. The connection between the prefabricated lower column and the prefabricated upper column is hollow. Two prefabricated waffle support beams are respectively arranged between two prefabricated double-layer corbel columns. Two prefabricated double-T support beams are respectively arranged between two prefabricated double-layer corbel columns.

[0004] According to a preferred mode, a plurality of embedded steel plates are provided on each of the two prefabricated double-T support beams. Two of the plurality of prefabricated double-T plates are respectively connected to two of the plurality of embedded steel plates. Two of the plurality of prefabricated lower columns are respectively connected to two of the prefabricated waffle support beams and two of the prefabricated double-T support beams.

[0005] According to a preferred mode, a plurality of groups of the prefabricated waffle plates and a plurality of groups of the prefabricated double-T plates are respectively arranged equidistantly along the length direction of the prefabricated waffle resting beams and the prefabricated double-T resting beams, and a plurality of groups of dustproof holes are formed on the plurality of groups of the prefabricated waffle plates.

[0006] According to a preferred mode, a plurality of groups of the vertical force-bearing steel bars are sleeved with a plurality of groups of grouting sleeves, and the plurality of groups of the grouting sleeves are respectively located in the prefabricated lower columns and the prefabricated upper columns, and the grouting end holes of the plurality of groups of the grouting sleeves are all from inside to outside.

[0007] According to a preferred mode, a plurality of groups of the prefabricated double-layer bracket columns are all provided with a plurality of groups of top fixing bolts for horizontal adjustment and fixation, and the plurality of groups of the top fixing bolts are sleeved on the plurality of groups of the vertical force-bearing steel bars.

[0008] Compared with the prior art, the present application has the following beneficial effects: 1、The device is provided with four groups of embedded parts and L-shaped foundation bolts at the bottom side of the prefabricated double-layer bracket column, and the embedded part steel bars are bound with the vertical force-bearing steel bars, so that the user can connect the parts on site when binding the steel bars, thereby improving the installation speed of the device. When installing the prefabricated column, the user can adjust the levelness of the prefabricated column by placing the horizontally prepared leveling blocks around the prefabricated column, and then fix the prefabricated column by the top fixing bolts, so that the user can complete the installation and positioning of the prefabricated column, thereby improving the positioning and connecting ability of the device in the installation of complex building structures.

[0009] 2、When using the device, the user can quickly complete the construction of the floor structure by directly placing the prefabricated double-T plates and the prefabricated waffle plates on the corresponding resting beams, so that the user can greatly reduce the cumbersome procedures required for the construction of traditional floors, thereby improving the construction convenience of the device. Then, by the combination of the prefabricated double-layer bracket column, the prefabricated waffle resting beam, the prefabricated double-T resting beam, the prefabricated waffle plate and the prefabricated double-T plate, the device can be free of support, thereby saving a large amount of high formwork operation, saving the user's manpower and material resources required for the high formwork operation, and improving the cost control and construction efficiency of the device in the building construction process. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 is a structure schematic diagram of the device after assembly.

[0011] Figure 2 is a top view of the device; Figure 3 is a structure schematic diagram of the prefabricated double-T resting beam and the prefabricated double-T plate of the device; Figure 4 is a structure schematic diagram of the prefabricated waffle plate and the prefabricated double-T plate of the device; Figure 5This is a schematic diagram of the prefabricated upper column and prefabricated lower column combination structure of the present invention; Figure 6 This is a schematic diagram of the prefabricated lower column structure of the present invention; Figure 7 This is a schematic diagram of the prefabricated waffle support beam and prefabricated waffle slab structure of the present invention.

[0012] In the diagram, the correspondence between component names and their corresponding reference numerals is as follows: 11. Precast waffle support beam; 21. Precast double-T support beam; 12. Precast waffle slab; 13. Precast double-T slab; 14. Precast lower column; 15. Precast upper column; 16. Embedded parts; 19. Embedded steel plate; 17. L-shaped anchor bolt; 18. Grouting sleeve. Detailed Implementation

[0013] The present invention will now be described in detail with reference to the accompanying drawings; like Figures 1 to 5 , Figure 7 As shown, the present invention provides a precast column assembly structure including multiple sets of precast double-layer corbel columns, two sets of precast waffle support beams 11, two sets of precast double-T support beams 21, multiple sets of precast waffle slabs 12, and multiple sets of precast double-T slabs 13. Each set of precast double-layer corbel columns includes a precast lower column 14 and a precast upper column 15. Multiple sets of vertical reinforcing bars are pre-embedded within the precast lower column 14 and precast upper column 15. Four sets of embedded parts 16 are provided on the bottom side of the precast lower column 14, with a total of four embedded parts 16 used at the four corners of the column bottom. Four sets of L-shaped anchor bolts 17 are provided on the bottom side of the precast lower column 14, with four L-shaped anchor bolts 17 pre-embedded on the bottom side (pre-embedded). Embedded part 16 needs to be positioned and fixed by a positioning plate to ensure the pre-embedding accuracy. Multiple sets of vertical reinforcing bars are fitted with grouting sleeves 18. Except for the pre-embedded part 16 in this drawing, the other corresponding installation points use conventional pre-embedded grouting sleeves 18. The precast lower column 14 is located below the precast upper column 15. The precast lower column 14 and the precast upper column 15 are connected by multiple sets of vertical reinforcing bars. The connection between the precast lower column 14 and the precast upper column 15 is hollowed out. The core area node of the precast corbel column is hollowed out. Two sets of precast waffle support beams 11 are located between the two sets of precast double-layer corbel columns. Two sets of precast double-T support beams 21 are located between the two sets of precast double-layer corbel columns.

[0014] Specifically, the precast double-layer corbel columns, precast waffle support beams 11, precast double-T support beams 21, precast waffle slabs 12, and precast double-T slabs 13 constitute an assemblable integrated structure, significantly reducing on-site wet work through the use of precast component assembly; the double-layer corbel columns, composed of precast lower columns 14 and precast upper columns 15, serve as the vertical load-bearing core, with embedded parts 16 at the four corners of the column base located in pre-set installation positions and bound to the vertical reinforcing steel bars to form an integrated load-bearing framework; positioning and fixing plates ensure that the embedded parts 16 are connected to the precast steel bars. The L-shaped anchor bolt 17 is pre-embedded with precision. One side of the L-shaped anchor bolt 17 is anchored into the fixing plate, and the other side is fixed with nuts after passing through the precast lower column 14, which strengthens the anchoring stability between the column and the foundation. The grouting sleeve 18 is fitted with vertical reinforcing steel bars to realize the rigid connection between the precast upper column 15 and the precast lower column 14. The hollow connection is convenient for grouting operation and reduces the self-weight of the column. The corbel structure in the core area provides a support point for the precast waffle support beam 11 and the precast double T support beam 21, realizing the rapid connection of beam and column nodes.

[0015] Multiple sets of embedded steel plates 19 are provided on both sets of precast double-T bearing beams 21. The two ends of the multiple sets of precast double-T plates 13 are respectively connected to two sets of embedded steel plates 19. The precast double-T plates 13 and precast waffle plates 12 are placed directly on the corbels of the precast main beams. Multiple sets of precast lower columns 14 are respectively connected to the two sets of precast double-T bearing beams 21 through two sets of precast waffle bearing beams 11. The bottom reinforcement bars set on the precast waffle bearing beams 11 and precast double-T bearing beams 21 are mechanically connected and extend into the columns to be connected. When the length does not meet the requirements, the ends are mechanically anchored. The web reinforcement bars on the bearing beams do not need to extend out during construction.

[0016] Specifically, the embedded steel plate 19 enhances the connection strength between the precast double-T support beam 21 and the precast double-T slab 13; the direct placement of the precast waffle slab 12 and the precast double-T slab 13 eliminates the traditional formwork process; the mechanical connection and anchorage of the reinforcing bars of the precast waffle support beam 11 and the precast double-T support beam 21 ensure reliable force transmission at the beam-column joint; and the non-protruding web reinforcement simplifies the precast beam production and installation process. Multiple sets of precast waffle slabs 12 and multiple sets of precast double-T slabs 13 are arranged equidistantly along the length of the precast waffle support beam 11 and the precast double-T support beam 21, respectively, and multiple sets of dustproof holes are provided on the multiple sets of precast waffle slabs 12.

[0017] Specifically, the prefabricated waffle slabs 12 and prefabricated double-T slabs 13 arranged at equal intervals form a flat floor surface. The dustproof holes can reduce dust accumulation on the slab surface, while also serving as ventilation and pipeline laying functions.

[0018] like Figure 1 , Figure 6 As shown, multiple sets of grouting sleeves 18 are located inside the precast lower column 14 and the precast upper column 15, respectively, and the grouting end holes of the multiple sets of grouting sleeves 18 all face outwards.

[0019] Specifically, the orientation of the grouting end hole of the grouting sleeve 18 facilitates full filling of the grouting material, ensures no gaps between the vertical reinforcing steel and the sleeve, and improves the integrity and load-bearing capacity of the connection node.

[0020] Multiple sets of precast double-layer corbel columns are equipped with multiple sets of top fixing bolts for leveling and fixing. During installation, pre-prepared horizontal pads are placed around the precast columns. After leveling, the multiple sets of top fixing bolts are fitted onto the multiple sets of vertical reinforcing bars and fixed.

[0021] Specifically, the horizontal pads, together with the top fixing bolts, enable the adjustment of the level of the precast column. After fixing, the column can be kept stable without additional diagonal supports, simplifying the installation and reducing construction costs.

[0022] During the binding process, one end of each of the four sets of embedded parts 16 is bound to the body of multiple sets of vertical reinforcing bars. When binding the reinforcing bars, the reinforcing bars of the embedded parts and the vertical reinforcing bars of the precast column are bound together. Each of the four sets of L-shaped anchor bolts 17 includes a horizontal section and a vertical section. The horizontal section is embedded inside the fixing plate, and the vertical section passes through the precast lower column 14. The connection between the four sets of L-shaped anchor bolts 17 and the precast lower column 14 is fixed with nuts.

[0023] Specifically, the binding connection between the embedded part 16 and the vertical reinforcing steel enhances the anchorage strength of the steel, the segmented setting of the L-shaped anchor bolt 17 realizes the rigid connection between the column and the foundation, and the tightening of the nut ensures that there is no loosening after installation, providing stable support for the column.

[0024] The specific usage and function of this embodiment are as follows: First, the prefabrication and pre-embedding of the structure are prepared: prefabricate multiple sets of prefabricated double-layer corbel columns (including prefabricated lower columns 14 and prefabricated upper columns 15), two sets of prefabricated waffle support beams 11, two sets of prefabricated double-T support beams 21, multiple sets of prefabricated waffle slabs 12 and prefabricated double-T slabs 13; fix four sets of pre-embedded parts 16 at the four pre-set installation positions on the bottom of the prefabricated lower column 14, and tie the reinforcing bars of the pre-embedded parts 16 to the vertical reinforcing bars during binding; pre-embed the horizontal sections of the four sets of L-shaped anchor bolts 17 inside the positioning and fixing plate, and reserve the vertical sections to pass through the prefabricated lower column 14; grouting sleeves 18 are fitted on the vertical reinforcing bars in the prefabricated lower column 14 and prefabricated upper column 15 respectively (except for the corresponding positions of the pre-embedded parts 16, the rest are conventional grouting sleeves 18).

[0025] On-site installation and positioning: Place the fixing plate with L-shaped anchor bolts 17 in the preset position of the foundation and calibrate the flatness using a level; hoist the precast lower column 14 so that the vertical section of the anchor bolt is inserted into the reserved hole of the precast lower column 14, place the prepared horizontal shims around the column, adjust the height of the shims to calibrate the levelness of the precast lower column 14, and after calibration, use nuts to tighten and fix the anchor bolts to the precast lower column 14.

[0026] Upper and lower column butt joint and fixation: in prefabrication, the vertical stress reinforcement position is corresponding, to ensure that the vertical stress reinforcement of the upper column can be smoothly inserted into the grouting sleeve 18 of the corresponding lower column when hoisting the prefabricated upper column 15, and to ensure the alignment of the hollow area at the connection; install the top fixing bolt above the prefabricated upper column 15, adjust horizontally, then set the bolt on the vertical stress reinforcement and fasten, to complete the rigid connection of the upper and lower columns (no inclined support is needed).

[0027] Beam and floor assembly: place the prefabricated waffle beam 11 and the prefabricated double-T beam 21 on the brackets of the prefabricated double-layer bracket column respectively, so that the beam bottom reinforcement extends into the column through mechanical connection (mechanical anchoring is used when the length is insufficient); connect the two ends of the prefabricated double-T plate 13 with the embedded steel plate 19 of the prefabricated double-T beam 21, and arrange the prefabricated waffle plate 12 and the prefabricated double-T plate 13 along the length direction of the prefabricated waffle beam 11 and the prefabricated double-T beam 21 respectively, and directly place them on the beams, to ensure the smoothness of the dustproof hole of the prefabricated waffle plate 12.

[0028] Node grouting and solidification: through the hollow area of the prefabricated lower column 14 and the upper column, inject grouting material into the grouting end hole of the grouting sleeve 18, and after the grouting material hardens, form an integral stress system, to complete the entire installation process.

[0029] It should be noted that, in order to simplify the description of the present disclosure and help understand one or more embodiments of the present invention, sometimes multiple features are combined into one embodiment, figure or description thereof in the foregoing description of embodiments of the present invention.

Claims

1. A precast column assembly structure, comprising multiple sets of precast double-layer corbel columns, two sets of precast waffle support beams (11), two sets of precast double-T support beams (21), multiple sets of precast waffle slabs (12), and multiple sets of precast double-T slabs (13), characterized in that: Each of the precast double-layer corbel columns includes a precast lower column (14) and a precast upper column (15). Multiple sets of vertical reinforcing bars are pre-embedded in both the precast lower column (14) and the precast upper column (15). Four sets of embedded parts (16) are provided on the bottom side of the precast lower column (14), and four sets of L-shaped anchor bolts (17) are provided on the bottom side of the precast lower column (14). One end of each of the four sets of embedded parts (16) is tied to the vertical reinforcing bar. The precast lower column (14) is located below the precast upper column (15). The precast lower column (14) and the precast upper column (15) are connected by the vertical reinforcing steel bars. The connection between the precast lower column (14) and the precast upper column (15) is hollowed out. Two sets of precast waffle support beams (11) are located between the two sets of precast double-layer corbel columns. Two sets of precast double-T support beams (21) are located between the two sets of precast double-layer corbel columns.

2. The precast column assembly structure according to claim 1, characterized in that: Multiple sets of embedded steel plates (19) are provided on both sets of the precast double-T support beams (21). The two ends of the multiple sets of precast double-T plates (13) are respectively connected to the two sets of embedded steel plates (19). The multiple sets of precast lower columns (14) are respectively connected to the two sets of precast double-T support beams (21) through the two sets of precast waffle support beams (11).

3. A precast column assembly structure according to claim 2, characterized in that: Multiple sets of prefabricated waffle slabs (12) and multiple sets of prefabricated double-T slabs (13) are arranged at equal intervals along the length direction of the prefabricated waffle support beam (11) and the prefabricated double-T support beam (21), respectively. Multiple sets of dustproof holes are opened on the multiple sets of prefabricated waffle slabs (12).

4. The precast column assembly structure according to claim 1, characterized in that: Each of the multiple sets of vertical reinforcing bars is fitted with a grouting sleeve (18). The multiple sets of grouting sleeves (18) are located inside the precast lower column (14) and the precast upper column (15), respectively. The grouting end holes of the multiple sets of grouting sleeves (18) are all from the inside to the outside.

5. A precast column assembly structure according to claim 4, characterized in that: Each of the prefabricated double-layer corbel columns is provided with multiple sets of top fixing bolts for horizontal adjustment and fixation, and the multiple sets of top fixing bolts are sleeved on the multiple sets of vertical reinforcing bars.

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