Pier column steel bar and pier column steel bar cage

Abstract

The utility model discloses a pier column steel bar which is of an integrally-formed structure and comprises a supporting straight bar at the bottom, a lap joint inclined bar which is located on the upper portion of the straight bar and inclines outwards, and a limiting straight bar which is located on the upper portion of the lap joint inclined bar and is parallel to the supporting straight bar. The utility model further discloses a pier column reinforcement cage. Comprising a bearing platform provided with a base limiting structure, a main cage body which is fixed on the bearing platform through the base limiting structure and is formed by overlapping a plurality of cage body units up and down, and one or more horizontal positioning rings arranged on the outer sides of the cage body units in a sleeving manner, the connecting frame is arranged between the lap joint layers of the cage body units on the upper layer and the cage body units on the lower layer, and the hanging rings are symmetrically arranged on the two sides of the main cage body. The pier column reinforcing steel bar is of an integrally-formed multi-segment line structure, is unique in shape and simple in structure, and is particularly suitable for construction of stacking of multiple layers of main reinforcing steel bars.

Description

Technical Field

[0001] The utility model relates to the field of construction engineering, in particular to a pier column reinforcement and a superimposed pier column reinforcement cage. Background Art

[0002] With the development of municipal bridge engineering technology, the span, width and height of bridge structures are getting larger and larger, the structural form is becoming more and more complex, and the strength requirements of bridge structures are getting higher and higher. For example, the pier column structure has gradually developed from the initial single-layer main reinforcement structure to a double-layer main reinforcement structure, and even to the current three-layer or four-layer main reinforcement, which makes the construction of pier column reinforcement more and more difficult. In traditional technology, the construction of pier column reinforcement can be done by pre-binding into a steel cage and hoisting the whole on site. This technology has a fast construction speed and a clean on-site construction environment, which is in line with the current energy-saving and environmentally friendly construction concept.

[0003] At present, the prefabrication and hoisting of pier column steel bar segments are only applicable to single-layer main bars or pier column structures with low height that can be prefabricated to the top at one time. When multiple layers of main bars are superimposed and the pier column steel bars need to be connected, the steel bar segment prefabrication and hoisting process will not be applicable due to problems such as lack of operating space and main bar offset conflict. Alternatively, the traditional on-site single-bar binding construction process can be used. This process is simple and easy to operate, but the on-site main bars are numerous and thick, resulting in slow construction speed, which is not conducive to project progress and safe and civilized management. Summary of the invention

[0004] In view of this, the utility model provides a pier column steel bar and a pier column steel bar cage, which solves the problems of low overlap precision, great overlap difficulty and low construction efficiency in the overlapping construction of a pier column structure with multiple layers of main reinforcements.

[0005] The existing prefabrication and hoisting of steel bar segments in pier column structures are not suitable for the construction of multi-layer main reinforcement superposition, and the construction method of on-site single-bar binding is inefficient.

[0006] The utility model solves the above problems through the following technical means:

[0007] The utility model provides a pier column reinforcement, which is an integrally formed structure, comprising a bottom supporting straight reinforcement, an outwardly inclined overlapping oblique reinforcement located above the straight reinforcement, and a limiting straight reinforcement located above the overlapping oblique reinforcement and parallel to the supporting straight reinforcement.

[0008] Preferably, during overlapping, the supporting straight bars of the upper layer of the pier steel bars are inserted from top to bottom into the inner side of the limiting straight bars of the lower layer of the pier steel bars, and are supported by the overlapping oblique bars of the lower layer of the pier steel bars.

[0009] Preferably, the angle between the overlapping oblique reinforcement and the supporting straight reinforcement is 150°.

[0010] The utility model also proposes a pier column steel bar cage, comprising a pedestal provided with a base limiting structure, a main cage body formed by overlapping a plurality of cage body units up and down and fixed on the pedestal by the base limiting structure, one or more horizontal positioning rings sleeved on the outside of the cage body unit, a connecting frame arranged between the overlapping layers of the cage body units on the upper layer and the cage body units on the lower layer, and lifting rings symmetrically arranged on both sides of the main cage body, wherein the cage body unit is formed by surrounding a plurality of the aforementioned pier column steel bars.

[0011] As a further improvement of the above technical solution, a plurality of welding guide columns are arranged at a fixed distance on the inner side of the horizontal positioning ring.

[0012] As a further improvement of the above technical solution, the lifting ring is an inverted U-shaped structure, and its two parallel free ends are respectively provided with outward anti-detachment hooks.

[0013] Preferably, the two parallel parts of the inverted U-shaped lifting ring are respectively welded to the overlapping parts of the two pier column steel bars and are tied and reinforced by tying steel wires.

[0014] Preferably, the cage unit has two layers, namely an outer cage unit and an inner cage unit. The outer cage unit is higher than the inner cage unit by the length of two limiting straight ribs, and horizontal positioning rings are provided on the outer sides of the outer cage unit and the inner cage unit.

[0015] It can be seen from the above technical solution that the utility model has the following beneficial effects:

[0016] The pier column reinforcement of the utility model is an integrally formed multi-segment linear structure with unique shape and simple structure, and is particularly suitable for the construction of multi-layer main reinforcement superposition.

[0017] The pier column steel bar cage of the utility model is formed by tying and stacking the above-mentioned pier column steel bars. The bottom of the cage unit of the upper layer is folded inward to become smaller. Through the overlapping form of large-in-small, the bottom of the cage unit of the upper layer can be quickly and accurately inserted into the inner side of the upper part of the cage unit of the lower layer, leaving more operating space for the prefabrication and hoisting of multi-layer main reinforcement segments, which can effectively avoid the spatial conflict when the upper and lower layers of steel bars of the traditional pier column are linearly overlapped, and the overlapping accuracy of the steel bar cage is improved. Compared with the traditional on-site steel bar binding process, the prefabrication and hoisting of the steel bar segments of the pier column structure with multi-layer main reinforcement superimposed are realized, which greatly improves the construction efficiency and better meets the construction requirements of safety, civilization and environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the pier column reinforcement of the utility model;

[0019] Figure 2 It is a schematic diagram of the upper and lower overlapping of the pier column reinforcement of the utility model;

[0020] Figure 3 It is a structural schematic diagram of the pier column reinforcement cage of the utility model;

[0021] Figure 4 This is a schematic diagram of the installation of the pier column reinforcement cage of the utility model;

[0022] Figure 5 It is a side cross-sectional view of the pier column reinforcement cage of the utility model;

[0023] Figure 6 It is a structural schematic diagram of the horizontal positioning ring of the pier column reinforcement cage of the utility model;

[0024] Figure 7 It is a structural schematic diagram of the lifting ear of the pier column reinforcement cage of the utility model.

[0025] like Figure 1-Figure 7 , supporting straight reinforcement -11, overlapping oblique reinforcement -12, limiting straight reinforcement -13, main cage body -2, cage body unit -21, outer cage unit -211, inner cage unit -212, pedestal -3, horizontal positioning ring -4, welding guide column -41, connecting frame -5, lifting ring -6, anti-off hook -61. DETAILED DESCRIPTION

[0026] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are 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 should not be understood as a limitation on the present invention.

[0027] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "plurality" means two or more.

[0028] Example 1

[0029] like Figure 1 As shown, the pier column reinforcement described in this embodiment is an integrally formed structure, including a supporting straight reinforcement 11 at the bottom, an outwardly inclined overlapping oblique reinforcement 12 located above the straight reinforcement, and a limiting straight reinforcement 13 located above the overlapping oblique reinforcement 12 and parallel to the supporting straight reinforcement 11.

[0030] The pier column reinforcement described in this embodiment is an integrally formed multi-segment linear structure with a unique shape and a simple structure, and is particularly suitable for the construction of multiple layers of main reinforcement superposition.

[0031] When the pier column reinforcement described in this embodiment is used for upper and lower overlap, it is only necessary to insert the supporting straight reinforcement 11 of the upper pier column reinforcement from top to bottom into the inner side of the limiting straight reinforcement 13 of the lower pier column reinforcement, and support it with the overlapping oblique reinforcement 12 of the lower pier column reinforcement. Figure 2 As shown, the pier column reinforcements on the same overlap position can be connected and fixed.

[0032] As a preferred implementation of the above technical solution, the angle between the overlapping oblique reinforcement 12 and the supporting straight reinforcement 11 is 150°, which obtains the optimal supporting capacity while ensuring the overall strength of the steel bar, avoids the situation where the angle between the overlapping oblique reinforcement 12 and the supporting straight reinforcement 11 is too small, causing the overlapping oblique reinforcement 12 of the pier column reinforcement in the lower layer to bend, deform or even break under load, and avoids the situation where the angle between the overlapping oblique reinforcement 12 and the supporting straight reinforcement 11 is too large and cannot effectively support the pier column reinforcement in the upper layer.

[0033] Example 2

[0034] like Figures 3 to 5 As shown, the pier column reinforcement cage described in this embodiment includes a base 3 provided with a base limiting structure, a main cage body 2 formed by overlapping multiple cage body units 21 fixed on the base 3 by the base limiting structure, one or more horizontal positioning rings 4 sleeved on the outside of the cage body unit 21, a connecting frame 5 provided between the overlapping layers of the cage body unit 21 on the upper layer and the cage body unit 21 on the lower layer, and lifting rings 6 symmetrically provided on both sides of the main cage body 2, and the cage body unit 21 is surrounded by multiple pier column reinforcements.

[0035] The pier column reinforcement cage described in this embodiment is formed by tying and stacking the above-mentioned pier column reinforcements. The bottom of the cage unit 21 of the upper layer is folded inward to become smaller. Through the large-in-small overlapping form, the bottom of the cage unit 21 of the upper layer can be quickly and accurately inserted into the inner side of the upper part of the cage unit 21 of the lower layer, leaving more operating space for the prefabrication and hoisting of multi-layer main reinforcement segments, which can effectively avoid the spatial conflict when the upper and lower layers of reinforcement are linearly overlapped in traditional piers, improve the overlapping accuracy of the reinforcement cage, and compared with the traditional on-site reinforcement binding process, it realizes the prefabrication and hoisting of the reinforcement segments of the pier structure with multi-layer main reinforcement superimposed, greatly improves the construction efficiency, and is more in line with the construction requirements of safety, civilization and environmental protection.

[0036] As a further improvement of the above technical solution, a plurality of welding guide columns 41 are arranged at a fixed distance on the inner side of the horizontal positioning ring 4, such as Figure 6As shown, the two pier column steel bars on the same lap line can be limited, so that they can be accurately fixed and welded, the binding accuracy of the main cage body 2 is improved, and the construction quality is improved.

[0037] As a further improvement of the above technical solution, the lifting ring 6 is an inverted U-shaped structure, and its two parallel free ends are respectively provided with outward anti-drop hooks 61, such as Figure 7 As shown, the arc-shaped portion of the lifting ring 6 can be hung by a lifting device to facilitate lifting, and the anti-drop hook 61 is provided to prevent the lifting ring 6 from falling off from the free end when the lifting ring 6 is lifted upward, thereby further improving the safety of the lifting construction.

[0038] As a preferred implementation of the above technical solution, the two parallel parts of the inverted U-shaped lifting ring 6 are respectively welded to the overlapping parts of the two pier column steel bars, and are further tied and reinforced by tying steel wires to improve the connection firmness of the lifting ring 6, avoid it from falling off during the lifting process, and improve the safety of the lifting construction.

[0039] As a preferred embodiment of the above technical solution, the cage unit 21 has two layers, such as Figure 5 As shown, they are respectively an outer cage unit 211 and an inner cage unit 212, wherein the outer cage unit 211 is higher than the inner cage unit 212 by the length of two limiting straight bars 13, so that when they are superimposed and installed, the overlap of the outer cage unit 211 and the inner cage unit 212 has a certain height difference, and the two weakest overlaps inside and outside are connected and reinforced by the supporting straight bars 11 of the pier column steel bars on the outside and the inner pier column steel bars, respectively, so as to further improve the installation strength of the main cage body 2, and the outer sides of the outer cage unit 211 and the inner cage unit 212 are both provided with horizontal positioning rings 4, which can cooperate with the base limiting structure for limiting, thereby further improving the prefabrication accuracy of the steel cage.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A pier column steel bar, which is an integrally formed structure, characterized in that: It includes supporting straight reinforcement at the bottom, overlapping oblique reinforcement located above the straight reinforcement and inclined outward, and limiting straight reinforcement located above the overlapping oblique reinforcement and parallel to the supporting straight reinforcement.

2. A pier column reinforcement according to claim 1, characterized in that: During overlapping, the supporting straight bars of the upper layer of the pier column reinforcement are inserted from top to bottom into the inner side of the limiting straight bars of the lower layer of the pier column reinforcement, and are supported by the overlapping oblique bars of the lower layer of the pier column reinforcement.

3. A pier column reinforcement according to claim 1, characterized in that: The included angle between the overlapping oblique reinforcement and the supporting straight reinforcement is 150°.

4. A pier column reinforcement cage, characterized in that: It comprises a pedestal provided with a base limiting structure, a main cage body formed by overlapping a plurality of cage units fixed on the pedestal by the base limiting structure, one or more horizontal positioning rings sleeved on the outside of the cage body unit, a connecting frame arranged between the overlapping layers of the cage body units on the upper layer and the cage body units on the lower layer, and lifting rings symmetrically arranged on both sides of the main cage body, wherein the cage body unit is formed by surrounding a plurality of pier column steel bars as described in claim 2 or 3.

5. A pier column reinforcement cage according to claim 4, characterized in that: A plurality of welding guide columns are arranged at a fixed distance on the inner side of the horizontal positioning ring.

6. A pier column reinforcement cage according to claim 4, characterized in that: The lifting ring is an inverted U-shaped structure, and two parallel free ends thereof are respectively provided with outward anti-drop hooks.

7. A pier column reinforcement cage according to claim 6, characterized in that: The two parallel parts of the inverted U-shaped lifting ring are respectively welded to the overlapping parts of the two pier column steel bars and are tied and reinforced by tying steel wires.

8. The pier column reinforcement cage according to claim 4, characterized in that: The cage unit has two layers, namely an outer cage unit and an inner cage unit. The outer cage unit is higher than the inner cage unit by the length of two limiting straight bars, and horizontal positioning rings are arranged on the outer sides of the outer cage unit and the inner cage unit.

Images