A kind of planted concrete assembled bridge pier

Abstract

The present invention relates to a planted concrete assembled bridge pier, comprising a plurality of bridge pier columns stacked in sequence from bottom to top, the bridge pier column comprising a bridge pier column body cast by reinforced concrete, the bridge pier column body having a plurality of reserved connecting steel bars, the lower part of the connecting steel bars being cast and fixed in the bridge pier column body, and the upper part of the connecting steel bars being exposed at the top of the bridge pier column body; a plurality of grouting sleeves are pre-embedded at the bottom of the bridge pier column body, the grouting sleeves being arranged corresponding to the connecting steel bars, so that the connecting steel bars exposed at the top of the bridge pier column body can be accommodated in the grouting sleeves at the bottom of the adjacent bridge pier column body; a planted concrete layer is also cast on the outer peripheral side of the bridge pier column body, the planted concrete layer is fixed on the bridge pier column body by a plurality of transversely arranged reinforcement bars, so as to solve the problem that it is difficult to achieve greening of existing bridge piers through existing shallow covering plants.

Description

Technical Field

[0001] The invention relates to the field of bridge engineering, and in particular to a planted concrete assembled bridge pier. Background Art

[0002] With the deepening of the concept of sustainable development and the increasing density of urban population, people have put forward higher requirements for the current urban bridge construction. Prefabricated bridge pier construction can minimize the occupation of urban space, avoid damage to the ecological environment, and improve the recycling rate of resources. However, with the acceleration of urbanization, the continuous expansion of reinforced concrete buildings has gradually occupied green land, making the green land in cities less and less.

[0003] In the prior art, it is easy to achieve greening for concrete floors on flat ground by covering the shallow surface soil layer with an ecosystem, but it is difficult to achieve greening for existing high-rise supports such as bridge piers by covering them with existing shallow plants. Therefore, the present invention proposes a planted concrete assembled bridge pier. Summary of the invention

[0004] The present invention aims to provide a vegetated concrete assembled bridge pier to solve the problem that it is difficult to achieve greening of existing bridge piers through existing shallow covering plants.

[0005] The specific plan is as follows:

[0006] A planted concrete assembled pier comprises a plurality of pier columns stacked in sequence from bottom to top, the pier column comprising a pier column body cast by reinforced concrete, a plurality of reserved connecting steel bars being arranged on the pier column body, the lower portion of the connecting steel bars being cast and fixed in the pier column body, and the upper portion of the connecting steel bars being exposed at the top of the pier column body; a plurality of grouting sleeves being pre-embedded at the bottom of the pier column body, the grouting sleeves being arranged corresponding to the connecting steel bars so that the connecting steel bars exposed at the top of the pier column body can be accommodated in the grouting sleeves at the bottom of the adjacent pier column body; a planted concrete layer is also cast on the outer peripheral side of the pier column body, and the planted concrete layer is fixed to the pier column body by a plurality of transversely arranged reinforcement bars.

[0007] Furthermore, the reinforcement is basalt fiber reinforcement.

[0008] Furthermore, the vegetation concrete in the vegetation concrete layer is lightweight vegetation material concrete.

[0009] Furthermore, the bottom of the connecting steel bar is fixed in the grouting sleeve.

[0010] The vegetated concrete prefabricated bridge pier provided by the present invention has the following advantages compared with the prior art: the vegetated concrete prefabricated bridge pier provided by the present invention has the advantages of convenient construction and simple operation of the prior prefabricated buildings, and can also plant green plants in the outer vegetated concrete layer 20 to achieve the advantages of beautifying the environment, greening the city, and improving the ecology. In addition, the bearing capacity of the bridge pier is entirely provided by the inner layer of concrete, and the outer layer of vegetated concrete is only used as a place for plant growth and does not bear external loads, thereby ensuring the bearing capacity of the bridge pier. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 A schematic diagram of a vegetated concrete prefabricated bridge pier is shown.

[0012] Figure 2 A schematic diagram of a bridge pier column is shown. DETAILED DESCRIPTION

[0013] To further illustrate the various embodiments, the present invention provides drawings. These drawings are part of the disclosure of the present invention, which are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, a person of ordinary skill in the art should be able to understand other possible implementations and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0014] The present invention will now be further described with reference to the accompanying drawings and specific implementation methods.

[0015] like Figure 1-Figure 2 As shown, the present invention provides a vegetated concrete assembled bridge pier, comprising a plurality of bridge pier columns 1 stacked in sequence from bottom to top.

[0016] Each pier column 1 includes a pier column body 10 cast by reinforced concrete, with a plurality of reserved connecting steel bars 11 on the pier column body 10, the lower part of the connecting steel bars 11 is cast and fixed in the pier column body 10, and the upper part of the connecting steel bars 11 is exposed at the top of the pier column body 10; a plurality of grouting sleeves 12 are pre-buried at the bottom of the pier column body 10, and these grouting sleeves 12 are arranged corresponding to the connecting steel bars 11, so that the connecting steel bars 11 exposed at the top of the pier column body 10 can be accommodated in the grouting sleeves 12 at the bottom of the adjacent pier column body 10. It should be clear that if the diameter of the pier is too large, the pier column body 10 can be prefabricated into a hollow cylinder.

[0017] During on-site construction, one pier column body 10 is first hoisted on another pier column body 10, and the connecting steel bars 11 of the lower pier column body 10 are extended into the grouting sleeve 12 of the upper pier column body 10; then the joint between the two pier column bodies 10 is sealed; and then high-strength grouting material is poured into the grouting sleeve 12 by manual or mechanical grouting to achieve the connection of the connecting steel bars 11 between the two adjacent pier column bodies 10. In this embodiment, the bottom of the connecting steel bar 11 is fixed in the grouting sleeve 12, so that the connecting steel bars 11 of the two adjacent pier column bodies 10 are connected as a whole.

[0018] Since the assembly between the above-mentioned prefabricated bridge pier columns only shows one preferred connection structure in the drawings of this embodiment, it is not limited thereto, and other similar connection structures in the prior art are also suitable for this.

[0019] The difference between the vegetated concrete assembled bridge pier provided by the present invention and the existing prefabricated bridge pier column is that a vegetated concrete layer 20 is cast on the outer peripheral side of each bridge pier column body 10, and the vegetated concrete layer 20 is fixed to the bridge pier column body 10 by multiple transversely arranged reinforcing bars 21. The vegetated concrete mentioned here refers to a type of concrete or concrete product that uses a special concrete with a certain pore size and a certain porosity as a skeleton, fills the concrete pores with substances required for plant growth, and the plant roots grow in the pores or penetrate the concrete to grow in the lower soil. This type of concrete or concrete product is a new type of concrete formed by organically combining plants and concrete through the plant growth base in the concrete pores. The vegetated concrete layer 20 refers to a concrete layer cast by vegetated concrete in which plants can grow, and the vegetated concrete layer 20 is fixed to the outer side of the bridge pier column body 10 by reinforcing bars 21, and the vertical slip is limited by the reinforcing bars 21, so that the vegetated concrete layer 20 and the bridge pier column body 10 become a whole.

[0020] In this embodiment, the reinforcement 21 is preferably basalt fiber reinforcement. While ensuring the strength, the basalt fiber reinforcement can effectively resist the corrosion of moisture provided to the plant growth in the vegetation concrete.

[0021] In this embodiment, the vegetation concrete in the vegetation concrete layer 20 preferably uses light-aggregate concrete. Light-aggregate concrete can reduce the bulk density of the vegetation concrete. Its interconnected pores can not only provide sufficient space for plant growth, but also accumulate nutrients required for plant growth. It has the performance of retaining water and fertilizer, so that plants can grow well in it. The light-aggregate concrete (LAC) mentioned here is made of light coarse aggregate, light sand (or ordinary sand), cement and water, and has a dry apparent density of no more than 1950kg / m 3 of concrete.

[0022] The vegetated concrete prefabricated bridge pier provided by the present invention has the advantages of convenient construction and simple operation of existing prefabricated buildings, and can also plant green plants in the outer vegetated concrete layer 20 to achieve the advantages of beautifying the environment, greening the city, improving the ecology, etc. In addition, the bearing capacity of the bridge pier is entirely provided by the inner layer of concrete, and the outer layer of vegetated concrete is only used as a place for plant growth and does not bear external loads, thereby ensuring the bearing capacity of the bridge pier.

[0023] Although the present invention has been specifically shown and described in conjunction with the preferred embodiments, it should be understood by those skilled in the art that various changes may be made to the present invention in form and details without departing from the spirit and scope of the present invention as defined by the appended claims, all of which are within the scope of protection of the present invention.

Claims

1. A planted concrete assembled bridge pier, comprising a plurality of bridge pier columns stacked in sequence from bottom to top, characterized in that: The pier column comprises a pier column body cast by reinforced concrete, a plurality of reserved connecting steel bars are arranged on the pier column body, the lower part of the connecting steel bars is cast and fixed in the pier column body, and the upper part of the connecting steel bars is exposed at the top of the pier column body; a plurality of grouting sleeves are pre-buried at the bottom of the pier column body, and the grouting sleeves are arranged corresponding to the connecting steel bars so that the connecting steel bars exposed at the top of the pier column body can be accommodated in the grouting sleeves at the bottom of the adjacent pier column body; A vegetation concrete layer is also cast on the outer peripheral side of the pier column body, and the vegetation concrete layer is fixed to the pier column body through multiple transversely arranged reinforcement bars; the vegetation concrete layer refers to a concrete layer cast with vegetation concrete in which plants can grow. The vegetation concrete refers to a special concrete with a certain pore size and a certain porosity as the skeleton, and the concrete pores are filled with substances required for plant growth. The vegetation concrete in the vegetation concrete layer is a light-bone vegetation material concrete with a dry apparent density of no more than 1950kg / m 3 .

2. The vegetation concrete assembled bridge pier according to claim 1 is characterized by: The reinforcement is basalt fiber reinforcement.

3. The vegetation concrete assembled bridge pier according to claim 1 is characterized by: The bottom of the connecting steel bar is fixed in the grouting sleeve.

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