Exposed rigid connection column foot of different-diameter cast-in-place pile

Abstract

The utility model discloses an exposed type rigid connection column foot of a reducing cast-in-place pile, which comprises a reinforcement cage, a foundation bolt, a steel stand column and a column foot bottom plate, the reinforcement cage comprises an upper reinforcement cage and a lower reinforcement cage, the diameter of the upper reinforcement cage is larger than that of the lower reinforcement cage, and the upper reinforcement cage and the lower reinforcement cage are integrally arranged. The lower reinforcement cage is arranged underground after being poured with concrete, and the upper reinforcement cage is arranged above the ground after being poured with concrete. According to the exposed rigid-connection column foot, a reinforcement cage used for pouring concrete is arranged to be an upper reinforcement cage and a lower reinforcement cage which are different in diameter, so that a cast-in-place pile poured by the reinforcement cage is a reducing cast-in-place pile, and when the lower part, with the smaller diameter, of the reducing cast-in-place pile is buried underground, the lower part of the reducing cast-in-place pile is embedded underground; and the vibrating rod vibrates the lower part with the smaller diameter of the different-diameter cast-in-place pile at the upper part with the larger diameter of the different-diameter cast-in-place pile, so that the pouring speed and the pouring quality of the different-diameter cast-in-place pile are improved, and the construction efficiency of building a photovoltaic power station is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of building construction, concretely relates to an exposed rigid joint column foot of different-diameter cast-in-place piles. BACKGROUND

[0002] On the road to the goal of "carbon peak and carbon neutralization", the construction of photovoltaic power stations has entered a stage of rapid development and rapid growth. Due to the rapid development of solar photovoltaic power generation projects, there are fewer and fewer flat and open high-quality sites available for the construction of photovoltaic power stations, and solar photovoltaic power generation projects are gradually developed in mountainous terrains with large slopes and large height differences. However, due to the large slope of the construction site of the mountainous photovoltaic project, large-scale construction equipment cannot operate, the terrain is uneven, and other factors, which makes the diameter of the plug-in cast-in-place pile of the photovoltaic power station cannot be set too large, and if the diameter of the plug-in cast-in-place pile is set to be relatively small, the smallest vibration rod cannot be inserted for vibration, which affects the pouring speed and pouring quality of the plug-in cast-in-place pile, thereby affecting the construction efficiency of the photovoltaic power station. SUMMARY

[0003] In order to solve the problem of low installation efficiency of the existing exposed rigid joint column foot of the photovoltaic power station, the utility model provides an exposed rigid joint column foot of different-diameter cast-in-place piles. The specific technical scheme of the utility model is as follows:

[0004] An exposed rigid joint column foot of different-diameter cast-in-place piles, comprising: a steel reinforcement cage, an anchor bolt, a steel column and a column foot plate, the steel reinforcement cage comprises an upper steel reinforcement cage and a lower steel reinforcement cage, the diameter of the upper steel reinforcement cage is larger than the diameter of the lower steel reinforcement cage, and the upper steel reinforcement cage and the lower steel reinforcement cage are integrally arranged, the lower steel reinforcement cage is arranged underground after being poured with concrete, the upper steel reinforcement cage is arranged above the ground after being poured with concrete, the lower half of the anchor bolt is arranged in the steel reinforcement cage and fixed with the concrete in the steel reinforcement cage, and the upper half of the anchor bolt is arranged above the upper steel reinforcement cage and detachably connected with the column foot plate, the column foot plate is arranged on the top of the upper steel reinforcement cage, and the steel column is arranged above the column foot plate.

[0005] Further, the lower half of the anchor bolt is arranged in the upper steel reinforcement cage and fixedly connected with the concrete in the upper steel reinforcement cage, and the bottom of the lower half of the anchor bolt is provided with a bent portion.

[0006] Further, the steel column and the column foot plate are integrally arranged, a plurality of reinforcing ribs are arranged at the connection between the steel column and the column foot plate, and the reinforcing ribs are arranged around the steel column.

[0007] Further, four anchor bolts are arranged on the steel reinforcement cage.

[0008] Further, the diameter of the upper reinforcement cage is 318mm, and the diameter of the upper reinforcement cage after pouring concrete is 400mm.

[0009] Further, the height of the upper reinforcement cage is 400mm, and the height of the upper reinforcement cage after pouring concrete is 450mm.

[0010] Further, the diameter of the lower reinforcement cage is 168mm, and the diameter of the lower reinforcement cage after pouring concrete is 250mm.

[0011] Further, the height of the lower reinforcement cage is 1250mm, and the height of the lower reinforcement cage after pouring concrete is 1300mm.

[0012] Compared with the prior art, the beneficial effects of the utility model are that: the exposed rigid connection column foot sets the reinforcement cage for pouring concrete into upper and lower reinforcement cages with different diameters, so that the bored pile poured by the reinforcement cage is a variable-diameter bored pile, when the lower part with smaller diameter of the variable-diameter bored pile is buried underground, the vibrator rod vibrates the lower part with smaller diameter of the variable-diameter bored pile in the upper part with larger diameter of the variable-diameter bored pile, so as to improve the pouring speed and quality of the variable-diameter bored pile, thereby improving the construction efficiency of the photovoltaic power station; the upper part with larger diameter of the variable-diameter bored pile is buried into the foundation bolt, so that the bored pile is rigidly connected with the steel column through the foundation bolt, and the structural stability, seismic performance, economy and adaptability of the photovoltaic support are improved; the embedded foundation bolt positioner is convenient and simple to use, and can effectively improve the construction efficiency and construction precision. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a structural schematic view of the exposed rigid connection column foot in one embodiment of the utility model;

[0014] Figure 2 It is a partial structural schematic view of the exposed rigid connection column foot in one embodiment of the utility model;

[0015] Figure 3 It is a top view schematic view of the exposed rigid connection column foot in one embodiment of the utility model;

[0016] Figure 4 It is a structural schematic view of the reinforcement cage in one embodiment of the utility model;

[0017] Figure 5 It is a structural schematic view of the prior inserted column foot. DETAILED DESCRIPTION

[0018] The embodiments of the utility model are described in detail below, and the embodiment examples are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout.

[0019] In the description of the utility model, it needs to be explained that for the orientation words, if the terms "center", "transverse", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation and positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and cannot be understood as indicating or implying that the device or element indicated must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific protection scope of the utility model.

[0020] In addition, if the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the "first" and "second" features can be explicitly or implicitly included one or more features, and in the description of the utility model, the meaning of "at least" is one or more, unless otherwise specifically limited.

[0021] In the utility model, unless otherwise specifically provided and limited, if the terms "assembly", "connection" and "connection" are understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected; it can be directly connected, or it can be connected through an intermediate medium, or it can be connected between two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0022] In the utility model, unless otherwise provided and limited, the "upper" or "lower" of the first feature on the second feature can include that the first and second features are in direct contact, or the first feature and the second feature are not in direct contact but are in contact through another feature between them. Moreover, the "upper", "lower" and "upper" of the first feature on the second feature include that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than the height of the second feature. The "upper", "lower" and "lower" of the first feature on the second feature include that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is lower than the second feature.

[0023] The technical scheme of the utility model and its beneficial effects will be clearer and more explicit by further describing the specific embodiments of the utility model in combination with the drawings of the specification. The embodiments described below by referring to the drawings are exemplary and are intended to explain the utility model, and cannot be understood as limiting the utility model.

[0024] As Figures 1 to 4As shown, the unit of the number in the figure is mm (millimeter), an exposed rigid connection column foot of a variable diameter cast-in-place pile, comprising: a reinforcement cage 1, an anchor bolt 2, a steel column 3 and a column foot plate 4. The cast-in-place pile is obtained by pouring concrete 9 on the reinforcement cage 1, which comprises an upper reinforcement cage 5 and a lower reinforcement cage 6, the diameter of the upper reinforcement cage 5 is larger than that of the lower reinforcement cage 6, and the upper reinforcement cage 5 is integrally arranged with the lower reinforcement cage 6, the integrally arranged upper reinforcement cage 5 and lower reinforcement cage 6 can improve the stability of the cast-in-place pile, prevent the stiffness of the cast-in-place pile from suddenly changing due to different diameters of the cross section, and cause a series of problems such as stress concentration on the pile body of the cast-in-place pile. The lower reinforcement cage 6 is arranged underground after pouring the concrete 9, the upper reinforcement cage 5 is arranged above the ground after pouring the concrete 9, the diameter of the lower reinforcement cage 6 is smaller, and a small drilling equipment can be used to drill a containing hole for accommodating the lower reinforcement cage 6; the diameter of the upper reinforcement cage 5 is larger, which increases the supporting area of the cast-in-place pile, thereby meeting the bearing capacity demand of the photovoltaic power station. The lower half of the anchor bolt 2 is arranged in the reinforcement cage 1 and fixed with the concrete 9 in the reinforcement cage 1, and the upper half is arranged above the upper reinforcement cage 5 and detachably connected with the column foot plate 4, the column foot plate 4 is arranged on the top of the upper reinforcement cage 5, and the steel column 3 is arranged above the column foot plate 4.

[0025] As one of the embodiments, the lower half of the anchor bolt 2 is arranged in the upper reinforcement cage 5 and fixedly connected with the concrete 9 in the upper reinforcement cage 5, and the bottom of the lower half of the anchor bolt 2 is provided with a bending part 7. The bending part 7 of the anchor bolt 2 can increase the stability of the anchor bolt 2 in the concrete 9.

[0026] As one of the embodiments, the steel column 3 is integrally arranged with the column foot plate 4, and a plurality of reinforcing ribs 8 are arranged at the connection between the steel column 3 and the column foot plate 4, the reinforcing ribs 8 are arranged around the steel column 3, the stress area of the steel column 3 is expanded, and the stability between the steel column 3 and the column foot plate 4 is improved.

[0027] As one of the embodiments, four anchor bolts 2 are arranged on the reinforcement cage 1, and four corresponding bolt holes are arranged on the column foot plate 4.

[0028] As one of the embodiments, the cross section of the column foot plate 4 is square, the side length of the cross section is 290 mm, the thickness of the column foot plate 4 is 18 mm, and the height of the reinforcing rib 8 is 100 mm.

[0029] As one of the embodiments, the diameter of the upper reinforcement cage 5 is 318 mm, and the diameter of the upper reinforcement cage 5 after pouring the concrete 9 is 400 mm.

[0030] As one of the embodiments, the height of the upper reinforcement cage 5 is 400 mm, and the height of the upper reinforcement cage 5 after pouring the concrete 9 is 450 mm.

[0031] As one of the embodiments, the diameter of the lower reinforcement cage 6 is 168 mm, and the diameter of the lower reinforcement cage 6 after pouring the concrete 9 is 250 mm.

[0032] As one of the embodiments, the height of the lower reinforcement cage 6 is 1250 mm, and the height of the lower reinforcement cage 6 after pouring the concrete 9 is 1300 mm.

[0033] Construction of the exposed rigid connection column foot: workers first drill a holding hole with a set diameter for placing the reinforcement cage 1 on the mountain through a small drilling equipment; then the lower reinforcement cage 6 of the reinforcement cage 1 is placed in the holding hole, and then the concrete 9 is poured into the holding hole and vibrated on the upper part of the lower reinforcement cage 6 using a vibrating rod; and then the upper reinforcement cage 5 is poured using a tubular sleeve mold. After pouring the reinforcement cage 1, the anchor bolt 2 locator is placed at the top end of the reinforcement cage 1, and then the anchor bolt 2 is inserted into the positioning sleeve of the locator, and the locator can be removed after the concrete 9 is solidified; after removing the locator, the reserved bolt hole of the column foot plate 4 is aligned and inserted into the embedded anchor bolt 2 for installation, and finally the gap between the column foot and the pile head is poured again to increase the stability.

[0034] As shown in Figure 5 mounting technology is used in mountain photovoltaic, and because the diameter of the lower column is 168 mm, the lower column needs to be inserted into the bored pile to meet the 3D length of 504 mm. However, the exposed rigid connection column foot technology using different diameter bored pile foundation does not need to insert the column foot into the bored pile, and the column foot plate is connected with the embedded anchor bolt 2, which can effectively reduce the weight of the lower column of the support, reduce the engineering quantity of the installation engineering, and reduce the construction difficulty.

[0035] The innovative installation tool of the embedded anchor bolt 2 locator is used, the embedded anchor bolt 2 locator is sleeved on the pile head after the pouring of the bored pile is completed and before the initial setting is finished, and then the anchor bolt 2 is vertically inserted into the positioning sleeve in the locator, and the locator can be removed after the concrete 9 is solidified. Compared with the traditional positioning method, the locator is provided with a sleeve, which can effectively avoid the displacement of the embedded anchor bolt 2 caused by the insertion of the vibrating rod into the bored pile for vibration. Therefore, after using the tool, the bolt position can be accurately positioned, the installation accuracy of the support can be improved, the embedded anchor bolt 2 locator can be repeatedly disassembled and used, the operation is simple, the installation efficiency of the photovoltaic module is greatly improved, and the labor cost is effectively reduced.

[0036] The exposed rigid connection column foot sets the reinforcement cage 1 for pouring concrete 9 into the upper reinforcement cage 5 and the lower reinforcement cage 6 with different diameters, so that the bored pile poured by the reinforcement cage 1 is a variable-diameter bored pile, when the lower part with smaller diameter of the variable-diameter bored pile is buried underground, the vibrating rod vibrates the lower part with smaller diameter of the variable-diameter bored pile in the upper part with larger diameter of the variable-diameter bored pile, improves the pouring speed and pouring quality of the variable-diameter bored pile, and improves the construction efficiency of the photovoltaic power station; the upper part with larger diameter of the variable-diameter bored pile is buried into the anchor bolt, so that the bored pile is rigidly connected with the steel column 3 through the anchor bolt 2, and the structural stability, the seismic performance, the economy and the adaptability of the photovoltaic support are improved; the pre-buried anchor bolt 2 positioner is convenient to use and simple to operate, and can effectively improve the construction efficiency and the construction precision.

[0037] In the description of the specification, the description of the terms "in combination with an embodiment", "preferably", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the utility model, and the illustrative description of the above terms in the specification does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. The connection mode in the description of the specification has obvious effects and practical effects.

[0038] Through the description of the structure and principle above, those skilled in the art should understand that the utility model is not limited to the specific embodiments described above, and improvements and replacements of the technology known in the art based on the utility model all fall within the protection scope of the utility model, which should be limited by each claim.

Claims

1. An exposed type rigid joint column base of a reducing bored pile, characterized by, The utility model relates to a steel reinforced cage, anchor bolt, steel column and column foot bottom plate, the steel reinforced cage includes upper steel reinforced cage and lower steel reinforced cage, the diameter of upper steel reinforced cage is greater than the diameter of lower steel reinforced cage and upper steel reinforced cage is integrally arranged with lower steel reinforced cage, lower steel reinforced cage is arranged in the ground after concrete pouring, upper steel reinforced cage is arranged above the ground after concrete pouring, the lower half of anchor bolt is arranged in steel reinforced cage and is fixed with the concrete in steel reinforced cage, the upper half is arranged above upper steel reinforced cage and is detachably connected with column foot bottom plate, column foot bottom plate is arranged on the top of upper steel reinforced cage, and steel column is arranged above column foot bottom plate. The lower half of the anchor bolt is arranged in the upper steel reinforced cage and is fixedly connected with the concrete in the upper steel reinforced cage, and the bottom of the lower half of the anchor bolt is provided with a bending part.

2. The exposed type rigid connection column base of the reducing cast-in-place pile according to claim 1, characterized in that, The steel column is integrally arranged with the column foot bottom plate, and a plurality of reinforcing ribs are arranged around the steel column at the connection between the steel column and the column foot bottom plate.

3. The exposed type of column base for the reducing pile according to claim 1, wherein Four anchor bolts are arranged on the steel reinforced cage.

4. The exposed type of column base for the reducing pile according to claim 1, wherein The diameter of the upper steel reinforced cage is 318mm, and the diameter of the upper steel reinforced cage after pouring concrete is 400mm.

5. The exposed type of column base for the reducing pile according to claim 1, wherein The height of the upper steel reinforced cage is 400mm, and the height of the upper steel reinforced cage after pouring concrete is 450mm.

6. The exposed type of column base for the reducing pile according to claim 1, wherein The diameter of the lower steel reinforced cage is 168mm, and the diameter of the lower steel reinforced cage after pouring concrete is 250mm.

7. The exposed type of column base for the reducing pile according to claim 1, wherein The height of the lower steel reinforced cage is 1250mm, and the height of the lower steel reinforced cage after pouring concrete is 1300mm.

8. The exposed type of column base for the reducing pile according to claim 1, wherein ​

Images