A srpe tube confined aluminum alloy bar sea sand concrete structure

Abstract

The utility model discloses a kind of SRPE pipe constraint aluminum alloy rib sea sand concrete structure, including SRPE pipe, sea sand concrete, aluminum alloy longitudinal reinforcement and aluminum alloy stirrup;The SRPE pipe is hollow cylindrical structure, the inside of the SRPE pipe is provided with several aluminum alloy longitudinal reinforcement and aluminum alloy stirrup, the aluminum alloy longitudinal reinforcement and aluminum alloy stirrup center and SRPE pipe center coincide and are vertically fixed, the aluminum alloy stirrup is annular equidistant arrangement, the aluminum alloy stirrup is fixedly sleeved in the outer surface of aluminum alloy longitudinal reinforcement;The surface of the aluminum alloy longitudinal reinforcement and aluminum alloy stirrup is rough, and aluminum oxide film protective layer is provided on rough surface, the inside of the SRPE pipe is provided with sea sand concrete.The utility model uses the combination of SRPE pipe and aluminum alloy longitudinal, stirrup, and then fills sea sand concrete, the constraint effect of SRPE pipe to sea sand concrete, can greatly improve its bearing capacity and ductility, improve its seismic performance.

Description

Technical Field

[0001] This utility model relates to the field of building technology, specifically to an SRPE pipe-constrained aluminum alloy reinforced concrete structure made of sea sand. Background Technology

[0002] Against the backdrop of vigorous development of coastal engineering, near-shore engineering, and marine engineering, significant challenges have been posed to the durability of engineering structures and the operation and maintenance costs throughout their life cycle.

[0003] Compared with river sand concrete, sea sand concrete has similar compressive strength but slightly lower flexural strength. If the influence of chloride ions is removed, it can be used as equivalent to river sand. Utility Model Content

[0004] This utility model proposes an SRPE pipe-constrained aluminum alloy reinforced marine sand concrete structure, including an SRPE pipe, marine sand concrete, aluminum alloy longitudinal reinforcement, and aluminum alloy stirrups; the SRPE pipe is a hollow cylindrical structure, and a plurality of aluminum alloy longitudinal reinforcements and aluminum alloy stirrups are arranged inside the SRPE pipe. The centers of the aluminum alloy longitudinal reinforcements and aluminum alloy stirrups coincide with the center of the SRPE pipe and are fixed perpendicularly. The aluminum alloy stirrups are arranged in a ring at equal intervals and are fixedly sleeved on the outer surface of the aluminum alloy longitudinal reinforcements; the surfaces of the aluminum alloy longitudinal reinforcements and aluminum alloy stirrups are rough, and an aluminum oxide film protective layer is provided on the rough surface; marine sand concrete is arranged inside the SRPE pipe.

[0005] Preferably, the aluminum alloy longitudinal ribs and aluminum alloy stirrups are bound or welded into a skeleton using stainless steel wire.

[0006] Preferably, the aluminum alloy stirrups are connected to hook-shaped horizontal bars.

[0007] Preferably, the aluminum alloy longitudinal ribs are connected to arc-shaped transverse ribs on both sides.

[0008] Preferably, the SRPE pipe has an internal thread on the inner wall of one end and an external thread on the outer wall of the other end. A dustproof thread cap is provided on the external thread, and the inner wall of the dustproof thread cap is threaded. The dustproof thread cap is threaded to the external thread of the SRPE pipe to prevent concrete from sticking to the external thread during construction.

[0009] Aluminum alloys react with air, forming a dense alumina film on their surface, thus providing excellent corrosion resistance. Aluminum is also the most abundant metallic element in the Earth's crust, and aluminum alloys are widely used in daily life. For some specialized engineering projects, their price is perfectly acceptable. Steel-reinforced polyethylene (SRPE) pipe is a composite material made of a steel wire mesh reinforcing skeleton and high-density polyethylene (HDPE) as the matrix. It possesses excellent corrosion resistance and weather resistance, protecting concrete from external environmental erosion. During construction, it can be used as a formwork for pouring concrete, greatly improving construction efficiency, and also helps to constrain the concrete, improving its performance. Based on these principles, this utility model patent is proposed.

[0010] The beneficial effects of this utility model are as follows:

[0011] (1) The present invention relates to an SRPE pipe constrained aluminum alloy reinforcement sea sand concrete structure, which uses a combination of SRPE pipe and aluminum alloy longitudinal and stirrup reinforcement, and then fills the sea sand concrete. The constraint effect of the SRPE pipe on the sea sand concrete can greatly improve its bearing capacity and ductility, and improve its seismic performance.

[0012] (2) SRPE pipes replaced steel pipes and aluminum alloy bars replaced ordinary steel bars, which greatly enhanced the ability of the components to resist chloride corrosion in the marine environment and greatly improved the durability of the structure.

[0013] (3) Using sea sand concrete instead of ordinary freshwater sand and gravel concrete makes full use of marine resources, facilitates the use of local materials, reduces economic costs, and also plays a positive role in environmental protection.

[0014] (4) Sandblasting and anodizing or wire drawing treatment of aluminum alloy longitudinal bars and aluminum alloy stirrups, along with the use of arc-shaped and hook-shaped transverse bars, can enhance their bonding with concrete, thus enabling them to work together better. The aluminum alloy longitudinal bars and aluminum alloy stirrups are coated with an aluminum oxide film, which provides good corrosion resistance. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of an aluminum alloy stirrup structure.

[0016] Figure 2 This is a cross-sectional schematic diagram of the structure of this utility model.

[0017] Figure 3 This is a three-dimensional schematic diagram of the structure of this utility model.

[0018] Figure 4 This is a schematic diagram of the structure of the aluminum alloy longitudinal ribs of this utility model.

[0019] Figure 5 This is a schematic diagram of the SRPE pipe structure of this utility model.

[0020] Explanation of reference numerals in the attached diagram: 1 is SRPE pipe, 2 is aluminum alloy stirrup, 3 is aluminum alloy longitudinal reinforcement, 4 is sea sand concrete, 21 is hook-shaped transverse reinforcement, 31 is arc-shaped transverse reinforcement, 11 is internal thread, 12 is external thread, and 13 is dustproof thread cap. Detailed Implementation

[0021] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. Many specific details are set forth in the following description to provide a full understanding of the present utility model; however, the present utility model may also be implemented in other ways different from those described herein, and therefore, the present utility model is not limited to the specific embodiments disclosed below.

[0022] like Figure 1-5 As shown, this utility model proposes a technical solution for an SRPE pipe-constrained aluminum alloy reinforced concrete structure: an SRPE pipe-constrained aluminum alloy reinforced concrete structure, including an SRPE pipe 1, the SRPE pipe having a hollow cylindrical structure. Specifically, the steel-reinforced polyethylene (SRPE) pipe is a pipe composed of two materials: a steel wire mesh reinforcing skeleton and high-density polyethylene (HDPE) as the matrix. It has excellent corrosion resistance and weather resistance, can protect concrete from external environmental erosion, can be used as a formwork for pouring concrete during construction, greatly improving construction efficiency, and can also constrain the concrete, improving concrete performance; the SRPE pipe 1 is internally provided with several aluminum alloy longitudinal ribs 2 and aluminum alloy stirrups 3, the several aluminum alloy stirrups 2 are arranged in a ring at equal intervals, and the aluminum alloy stirrups 2 are all fixedly sleeved on the surface of the several aluminum alloy longitudinal ribs 3.

[0023] Specifically, the centers of the aluminum alloy stirrups 2 and 3 coincide with the center of the SRPE pipe 1 and are fixed vertically. The aluminum alloy stirrups 2 and 3 are bound or welded into a skeleton using stainless steel wire. Both the aluminum alloy stirrups 2 and 3 undergo sandblasting and oxidation treatment or wire drawing to create a rough surface, and an aluminum oxide film is formed on their surfaces. The interior of the SRPE pipe 1 contains sea sand concrete 4, specifically, the sea sand concrete 4 is uniformly mixed using untreated natural sea sand as fine aggregate. To increase adhesion, the aluminum alloy stirrups 2 are connected to four hook-shaped transverse ribs 21.

[0024] The aluminum alloy longitudinal rib 3 is connected to the arc-shaped horizontal rib 31 on both sides, and the upper and lower horizontal ribs are set in parallel.

[0025] An internal thread 11 is provided on the inner wall of one end of the SRPE pipe 1, and an external thread 12 is provided on the outer wall of the other end. A dustproof threaded cap 13 is provided on the external thread 12, and the inner wall of the dustproof threaded cap 13 is threaded. To be precise, the external thread 12 and the internal thread 11 are provided on the high-density polyethylene (HDPE) layer of the SRPE pipe 1. The dustproof threaded cap 13 is threadedly connected to the external thread 12 of the SRPE pipe 1 to prevent concrete from sticking to the external thread 12 during construction, which would prevent the SRPE pipe 1 from being extended. When it is necessary to extend the SRPE pipe 1, the dustproof threaded cap 13 is removed, and the internal thread 11 of another SRPE pipe 1 is connected to the external thread 12 of the completed SRPE pipe 1.

[0026] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A SRPE pipe-confined aluminum alloy reinforced concrete structure with marine sand, characterized in that, The system comprises SRPE pipe, sea sand concrete, aluminum alloy longitudinal ribs, and aluminum alloy stirrups. The SRPE pipe has a hollow cylindrical structure. Several aluminum alloy longitudinal ribs and stirrups are arranged inside the SRPE pipe. The centers of the aluminum alloy longitudinal ribs and stirrups coincide with the center of the SRPE pipe and are fixed perpendicularly. The aluminum alloy stirrups are arranged in a ring at equal intervals and are fixedly sleeved on the outer surface of the aluminum alloy longitudinal ribs. The surfaces of the aluminum alloy longitudinal ribs and stirrups are rough and have an aluminum oxide film protective layer. The interior of the SRPE pipe is filled with sea sand concrete.

2. The SRPE pipe-confined aluminum alloy reinforced concrete structure with sea sand as described in claim 1, characterized in that, The aluminum alloy longitudinal ribs and aluminum alloy stirrups are bound or welded into a skeleton using stainless steel wire.

3. The SRPE pipe-confined aluminum alloy reinforced concrete structure with marine sand as described in claim 2, characterized in that, The aluminum alloy stirrups are connected to hook-shaped horizontal bars.

4. The SRPE pipe-confined aluminum alloy reinforced concrete structure with sea sand as described in claim 3, characterized in that, The aluminum alloy longitudinal ribs are connected to arc-shaped transverse ribs on both sides.

5. The SRPE pipe-confined aluminum alloy reinforced concrete structure with sea sand as described in claim 4, characterized in that, The SRPE pipe has an internal thread on the inner wall of one end and an external thread on the outer wall of the other end. A dustproof thread cap is provided on the external thread, and the inner wall of the dustproof thread cap is threaded. The dustproof thread cap is threaded to the external thread of the SRPE pipe.

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