A reinforcement structure for the concrete cushion layer of a raft foundation column pier

Abstract

This utility model discloses a reinforcement structure for the construction of a concrete cushion layer for a raft foundation column pier. It includes a steel reinforcement frame positioned on top of the concrete cushion layer, a column pier fixedly connected to the top of the concrete cushion layer, a raft foundation fixedly connected to the central axis of the column pier's inner cavity, multiple steel reinforcement frames fixedly connected to the inner cavity of the column pier, and multiple vertical steel bars positioned at the bottom of the column pier. These vertical steel bars are embedded into the inner cavity of the concrete cushion layer. Multiple horizontal stirrups are welded to the surfaces of the four vertical steel bars on the left side. This utility model forms a frame through the combined use of vertical steel bars, horizontal stirrups, and horizontal stirrups. Then, through the combined use of transverse reinforcement, reinforcing reinforcement, and diagonal reinforcement, a reinforced connection is formed on both sides above the inner cavity of the concrete cushion layer, thereby strengthening the construction truss of the inner cavity of the concrete cushion layer and ultimately enhancing the stability of the column pier's foundation.

Description

Technical Field

[0001] This utility model belongs to the field of building construction technology, and in particular relates to a construction reinforcement structure for concrete cushion layer of raft foundation column pier. Background Technology

[0002] Raft foundation is a composite foundation type in building foundation engineering. It consists of a large-area reinforced concrete raft slab and columns placed on the raft slab. The raft slab distributes the upper load to the foundation, and the columns connect the raft slab to the superstructure. It can be adapted to sites with uneven foundation bearing capacity and large load differences, reduce foundation settlement, and enhance the overall stability of the foundation. It is widely used in the foundation construction of high-rise buildings and buildings in complex terrain.

[0003] In the construction of raft foundation columns, the concrete cushion layer is a crucial preliminary step. Currently, the construction of the cushion layer often suffers from cracking and displacement due to poor base flatness and improper control of the reinforcement protective layer. This leads to problems with the cushion layer and consequently affects the construction quality of the raft foundation columns. Therefore, it is necessary to design a reinforcement structure for the concrete cushion layer of raft foundation columns, with an internal reinforcement cage to ensure the thickness of the reinforcement protective layer, guarantee the accuracy of formwork installation and subsequent construction, and enhance the cushion layer's resistance to groundwater erosion, thus building a solid and stable foundation for the raft foundation columns. Utility Model Content

[0004] The purpose of this utility model is to provide a reinforcement structure for the construction of concrete cushion layer of raft slab column pier foundation, which has the advantages of ensuring the thickness of the steel reinforcement protective layer, ensuring the accuracy of formwork installation and subsequent construction, and enhancing the cushion layer's resistance to groundwater erosion, thus providing a solid and stable foundation for the construction of raft slab column pier foundation, thereby solving the above-mentioned technical problems.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A reinforcement structure for the construction of a concrete cushion layer for a raft foundation column pier includes a steel reinforcement frame set on the top of the concrete cushion layer. A column pier is fixedly connected to the top of the concrete cushion layer. A raft foundation is fixedly connected to the central axis of the inner cavity of the column pier. Multiple steel reinforcement frames are fixedly connected to the inner cavity of the column pier. Multiple vertical steel bars are set at the bottom of the column pier. Multiple vertical steel bars are embedded in the inner cavity of the concrete cushion layer. Multiple horizontal stirrups I are welded to the surface of the four vertical steel bars on the left side. Multiple horizontal stirrups II are welded to the surface of the four vertical steel bars on the right side. The horizontal stirrups I and II are symmetrical. Extension bars are fixedly connected to the top of the vertical steel bars on both the left and right sides. Two symmetrical transverse bars are fixedly connected to one side of the four extension bars facing each other. Two symmetrical reinforcing bars are fixedly connected to the inner cavities of the horizontal stirrups I and II. Two symmetrical diagonal bars are fixedly connected to one side of the transverse bars.

[0006] Preferably, multiple tie bars are welded to the surfaces of the four vertical reinforcing bars located in the middle, and the tie bars are located above the first horizontal stirrup and the second horizontal stirrup.

[0007] Preferably, the bottom of the plurality of vertical reinforcing bars is fixedly connected to four lower layer reinforcing bars.

[0008] Preferably, two symmetrical long connecting bars are fixedly connected to one side of the four vertical reinforcing bars in the middle, and the end of the diagonal bar away from the transverse bar is fixedly connected to the long connecting bar.

[0009] Preferably, the inner cavities of both horizontal stirrup one and horizontal stirrup two are fixedly connected to two intersecting bars, and both ends of the intersecting bars are fixedly connected to the surface of the vertical reinforcing bars.

[0010] Preferably, a supporting rib is fixedly connected to the central axis at the top of the cross rib, and the end of the supporting rib away from the cross rib is fixedly connected to the long connecting rib.

[0011] The beneficial effects of this utility model are: 1. This utility model forms a frame through the combined use of vertical steel bars, horizontal stirrups one and two, and then reinforces the two sides above the inner cavity of the concrete cushion layer through the combined use of horizontal bars, reinforcing bars and diagonal bars. This makes the construction truss of the inner cavity of the concrete cushion layer strong, and finally strengthens the stable base of the column pier. This can ensure the thickness of the steel reinforcement protective layer, ensure the accuracy of formwork installation and subsequent construction, and enhance the cushion layer's resistance to groundwater erosion, thus laying a solid and stable base for the construction of raft foundation column piers. 2. By setting the lower layer of reinforcement bars, the lower layer of reinforcement bars plays a supporting and reinforcing role on the bottom of multiple vertical reinforcement bars, ensuring that the height of multiple vertical reinforcement bars can be kept consistent, and improving the stability of the reinforcement cage when reinforcing the inner cavity of the concrete cushion layer. 3. By setting up supporting ribs, this utility model provides support between the cross ribs and the long connecting ribs, ensuring that the position is more stable when the bottom of the column pier is reinforced on both sides, and preventing displacement and bending, thereby improving the stability of the long connecting ribs and cross ribs. Attached Figure Description

[0012] The advantages of the present invention, as described above and / or in the following detailed description in conjunction with the accompanying drawings, will become clearer and more readily understood. These drawings are merely illustrative and do not limit the scope of the present invention. Figure 1 This is a front view schematic diagram of one embodiment of the present utility model; Figure 2 This is a front cross-sectional view of one embodiment of the present invention; Figure 3This is a three-dimensional schematic diagram of the inner cavity structure of a concrete cushion layer according to an embodiment of the present invention; Figure 4 This is a three-dimensional schematic diagram of the lower reinforcement and the extension reinforcement according to an embodiment of the present invention; Figure 5 This is a three-dimensional schematic diagram of the cross reinforcement and support reinforcement of one embodiment of the present invention.

[0013] The attached diagram lists the components represented by each number as follows: 1. Concrete foundation, 2. Column pier, 3. Raft foundation, 4. Reinforcing steel frame, 5. Vertical reinforcement, 6. Horizontal stirrup 1, 7. Horizontal stirrup 2, 8. Tie bar, 9. Bottom layer reinforcement, 10. Extending reinforcement, 11. Horizontal reinforcement, 12. Reinforcing reinforcement, 13. Diagonal reinforcement, 14. Long connecting reinforcement, 15. Cross reinforcement, 16. Support reinforcement. Detailed Implementation

[0014] In the following description, embodiments of the concrete cushion layer construction reinforcement structure for raft slab column pier foundation of this utility model will be described with reference to the accompanying drawings.

[0015] Figure 1-5This invention illustrates a construction reinforcement structure for a raft foundation concrete pad of a column pier, comprising a steel reinforcement frame 4 positioned on top of the concrete pad 1, a column pier 2 fixedly connected to the top of the concrete pad 1, a raft slab 3 fixedly connected to the central axis of the column pier 2's inner cavity, multiple steel reinforcement frames 4 fixedly connected to the inner cavity of the column pier 2, and multiple vertical steel bars 5 positioned at the bottom of the column pier 2. All vertical steel bars 5 are embedded in the inner cavity of the concrete pad 1. Multiple horizontal stirrups 6 are welded to the surfaces of the four vertical steel bars 5 on the left side, and multiple horizontal stirrups 6 are welded to the surfaces of the four vertical steel bars 5 on the right side. Multiple horizontal stirrups 7 are welded together, with horizontal stirrups 6 and 7 being symmetrical. Multiple tie bars 8 are welded to the surfaces of the four vertical reinforcing bars 5 located in the middle. The tie bars 8 are positioned above the horizontal stirrups 6 and 7. Four lower-layer bars 9 are fixedly connected to the bottom of the multiple vertical reinforcing bars 5. These lower-layer bars 9 provide support and reinforcement to the bottom of the multiple vertical reinforcing bars 5, ensuring that their height remains consistent. This improves the stability of the reinforcing cage when reinforcing the inner cavity of the concrete foundation 1. Extending bars 10 are fixedly connected to the top of the vertical reinforcing bars 5 on both the left and right sides. Two symmetrical transverse bars 11 are fixedly connected to one side of the four extending bars 10 facing each other. Two symmetrical reinforcing bars 12 are fixedly connected to the inner cavity of horizontal stirrup 16 and horizontal stirrup 27. Two symmetrical diagonal bars 13 are fixedly connected to one side of the transverse bars 11. Two symmetrical long connecting bars 14 are fixedly connected to one side of the four vertical reinforcing bars 5 in the middle. The end of the diagonal bar 13 away from the transverse bars 11 is fixedly connected to the long connecting bar 14. Horizontal stirrup 16 and horizontal stirrup 27 are fixedly connected to the top of the vertical reinforcing bars 5 on both sides. Two cross bars 15 are fixedly connected to the inner cavity of the 27 column. Both ends of the cross bars 15 are fixedly connected to the surface of the vertical steel bar 5. A support bar 16 is fixedly connected to the central axis of the top of the cross bar 15. The end of the support bar 16 away from the cross bar 15 is fixedly connected to the long connecting bar 14. The support bar 16 provides support between the cross bar 15 and the long connecting bar 14, ensuring that the position is more stable when the bottom of the column pier 2 is reinforced on both sides, and there will be no displacement or bending. This improves the stability of the long connecting bar 14 and the cross bar 15.

[0016] Working Principle: During construction, the base is leveled and a concrete pad 1 is laid. The column piers 2 and the raft slab 3 steel reinforcement frame are precisely positioned and installed on top of the concrete pad 1. Then, multiple vertical steel bars 5 are inserted into the cavity of the concrete pad 1 according to the required spacing. Horizontal stirrups 6 are welded to the surface of the four vertical steel bars 5 on the left, and horizontal stirrups 7 are symmetrically welded to the four vertical steel bars 5 on the right. Tie bars 8 are welded to the surface of the four vertical steel bars 5 in the middle. The bottom of the vertical steel bars 5 is then supported and fixed by the lower layer of reinforcement bars 9, ensuring the verticality and spacing of the steel bars. With consistent spacing, extender bars 10 are connected to the top of the vertical reinforcing bars 5, and transverse bars 11 are fixed between the extender bars 10. Reinforcing bars 12 are installed inside the horizontal stirrups 16 and 27. One side of the transverse bars 11 is diagonally connected to the diagonal bars 13. Long connecting bars 14 are set between the vertical reinforcing bars 5 in the middle. The other end of the diagonal bars 13 is fixed to the long connecting bars 14. At the same time, cross bars 15 are arranged inside the horizontal stirrups. The top center of the cross bars 15 is connected to the long connecting bars 14 through the support bars 16. The construction of the raft column pier foundation lays a stable foundation.

[0017] In summary, the reinforcement structure for the concrete cushion layer of the raft foundation column pier uses vertical reinforcing bars 5, horizontal stirrups 1 and 2 to form a frame. Then, through the combined use of transverse bars 11, reinforcing bars 12, and diagonal bars 13, a reinforced connection is formed on both sides above the inner cavity of the concrete cushion layer 1. This makes the inner cavity construction truss of the concrete cushion layer 1 robust, and finally enhances the stability of the column pier 2. This achieves the goal of controlling the thickness of the reinforcing bar protective layer, ensuring the accuracy of formwork installation and subsequent construction, and enhancing the cushion layer's resistance to groundwater erosion, thus providing a solid and stable foundation for the raft foundation column pier construction.

Claims

1. A reinforcement structure for the construction of a concrete cushion layer for raft foundation column piers, characterized in that, The structure includes a steel reinforcement frame (4) set on top of a concrete foundation (1), a column base (2) fixedly connected to the top of the concrete foundation (1), a raft slab (3) fixedly connected to the central axis of the inner cavity of the column base (2), multiple steel reinforcement frames (4) fixedly connected to the inner cavity of the column base (2), multiple vertical steel bars (5) set at the bottom of the column base (2), multiple vertical steel bars (5) are embedded in the inner cavity of the concrete foundation (1), multiple horizontal stirrups (6) are welded to the surface of the four vertical steel bars (5) on the left side, and multiple horizontal stirrups (6) are welded to the surface of the four vertical steel bars (5) on the right side. The surface of the vertical steel bar (5) is welded with multiple horizontal stirrups (7). The horizontal stirrups (6) are symmetrical to the horizontal stirrups (7). The top of the vertical steel bar (5) on both the left and right sides is fixedly connected with extension bars (10). Two symmetrical transverse bars (11) are fixedly connected to one side of the four extension bars (10). Two symmetrical reinforcing bars (12) are fixedly connected to the inner cavity of the horizontal stirrups (6) and the horizontal stirrups (7). Two symmetrical diagonal bars (13) are fixedly connected to one side of the transverse bars (11).

2. The raft foundation column pier foundation concrete cushion layer reinforcement structure according to claim 1, characterized in that, Multiple tie bars (8) are welded to the surface of the four vertical steel bars (5) located in the middle, and the tie bars (8) are located above the horizontal stirrups one (6) and the horizontal stirrups two (7).

3. The raft foundation column pier concrete cushion layer construction reinforcement structure according to claim 2, characterized in that, The bottom of the plurality of vertical steel bars (5) is fixedly connected to four lower layer bars (9).

4. The raft foundation column pier concrete cushion layer construction reinforcement structure according to claim 3, characterized in that, Two symmetrical long connecting bars (14) are fixedly connected to one side of the four vertical reinforcing bars (5) in the middle, and the end of the diagonal bar (13) away from the transverse bar (11) is fixedly connected to the long connecting bar (14).

5. The raft foundation column pier concrete cushion layer construction reinforcement structure according to claim 4, characterized in that, The inner cavities of both horizontal stirrup 1 (6) and horizontal stirrup 2 (7) are fixedly connected to two cross bars (15), and both ends of the cross bars (15) are fixedly connected to the surface of the vertical steel bar (5).

6. The raft foundation column pier foundation concrete cushion layer reinforcement structure according to claim 5, characterized in that, A support rib (16) is fixedly connected to the central axis at the top of the cross rib (15), and the end of the support rib (16) away from the cross rib (15) is fixedly connected to the long connecting rib (14).

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