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CN-122013932-A - High-durability reinforced concrete structure

CN122013932ACN 122013932 ACN122013932 ACN 122013932ACN-122013932-A

Abstract

The invention relates to a reinforced concrete structure with high durability, and relates to the technical field of reinforced concrete structures. The steel plate structure comprises four mutually parallel grouting steel pipes, wherein four groups of grouting steel pipes are uniformly distributed in the circumferential direction, a transverse fixing steel plate is connected between every two adjacent grouting steel pipes, binding steel bars are arranged on the inner sides of the four grouting steel pipes, concrete is poured, and a sandwich structure is arranged on the outer sides of the four grouting steel pipes and the transverse fixing steel plates. This reinforced concrete structural member outside fills steel column of concrete combines the tradition reinforced concrete of inside pre-buried tie-up bar to combine its structure so that this reinforced concrete structure has characteristics such as shock resistance is good, the durability is strong, fire resistance is good, in addition through setting up the anticorrosive coating, promote metal component's corrosion resistance, under this structural design simultaneously, the isolated infiltration that corrodes of anticorrosive coating, effectively and guarantee the intensity of reinforcing bar and shaped steel component for a long time avoid impaired, the high durability characteristics that this reinforced concrete structure has of better assurance.

Inventors

  • JIANG ZHENYU
  • GUO JINXING
  • XIAO JINGCHAO
  • REN XIAOFEI
  • CHEN DALI
  • WANG CHANGYE
  • ZHAO YONGZAI

Assignees

  • 中交雄安建设有限公司

Dates

Publication Date
20260512
Application Date
20251230

Claims (10)

  1. 1. A reinforced concrete structure with high durability, characterized by comprising the following steps: Four mutually parallel grouting steel pipes (1), wherein the four groups of grouting steel pipes (1) are uniformly distributed in the circumferential direction, and a transverse fixed steel plate (2) is connected between every two adjacent grouting steel pipes (1); Binding steel bars (3) are arranged on the inner sides of the four grouting steel pipes (1) and concrete is poured; the outer sides of the four grouting steel pipes (1) and the transverse fixed steel plates (2) are provided with sandwich structures, the sandwich structures are interlayers which continuously encircle the outer sides of the four grouting steel pipes (1) and the transverse fixed steel plates (2), and the sandwich structures are filled with anti-corrosion layers (4); and an outer concrete layer (5) is poured on the outer side of the sandwich structure.
  2. 2. A high durability reinforced concrete structure according to claim 1, characterized in that the grouted steel pipes (1) are filled with concrete.
  3. 3. A reinforced concrete structure of high durability according to claim 1, characterized in that said transverse fixing steel plates (2) between every adjacent two of said grouting steel pipes (1) are in a plurality of groups arranged at successive intervals.
  4. 4. A reinforced concrete structure of high durability according to claim 1, characterized in that the concrete poured inside the four grouting steel pipes (1) is limited to the inside position of the transverse fixing steel plates (2) by a form.
  5. 5. The reinforced concrete structure with high durability according to claim 1, wherein the side walls of the grouting steel pipes (1) are connected with embedded anchor rods (6), the embedded anchor rods (6) are annular and extend to the center positions among the four grouting steel pipes (1), the embedded anchor rods (6) are welded with the binding steel bars (3), and the embedded anchor rods (6) are arranged on the side walls of the grouting steel pipes (1) in multiple groups and are uniformly distributed along the axial direction of the grouting steel pipes (1).
  6. 6. A reinforced concrete structure of high durability according to claim 2, characterized in that said sandwich structure comprises an outer sleeve (7) sleeved outside said grouted steel pipe (1) and a closed steel plate (8) located outside said transverse fixed steel plate (2); and each two adjacent groups of grouting steel pipes (1) are connected with the two groups of outer sleeves (7) so as to form a sandwich structure surrounding the outer sides of the four grouting steel pipes (1) and the transverse fixed steel plates (2).
  7. 7. The reinforced concrete structure of claim 6, wherein an interlayer space is left between the outer sleeve (7) and the grouting steel pipe (1), between the sealing steel plate (8) and the transverse fixing steel plate (2) and between the concrete inside the transverse fixing steel plate (2) for pouring the anti-corrosive layer (4).
  8. 8. The reinforced concrete structure with high durability according to claim 7, wherein two groups of mutually parallel strip-shaped protrusions (9) are arranged on the side surface of the grouting steel pipe (1) opposite to the side where the binding steel bars (3) are arranged, the strip-shaped protrusions (9) are axially arranged along the grouting steel pipe (1), a plurality of slurry leakage holes (10) are formed in the grouting steel pipe (1) at positions between the two groups of strip-shaped protrusions (9), and the slurry leakage holes (10) are uniformly distributed along the axial direction of the grouting steel pipe (1); A plurality of support rods (11) are arranged on the two groups of strip-shaped protrusions (9), the tail ends of the support rods (11) are used for being connected with an arc-shaped baffle plate (12), and the arc-shaped baffle plate (12) is used for shielding the slurry leakage holes (10); The arc-shaped baffle plate (12) is used for supporting the outer sleeve (7) so that an interlayer space is reserved between the outer sleeve (7) and the grouting steel pipe (1) for grouting the anti-corrosion layer (4).
  9. 9. A reinforced concrete structure of high durability according to claim 8, characterized in that the concrete poured in said grouted steel pipe (1) overflows from said grout holes (10) and fills between said arched baffles (12) and two sets of said strip-shaped protrusions (9).
  10. 10. A reinforced concrete structure of high durability according to claim 1, characterized in that said anti-corrosive layer (4) is an epoxy resin filled layer.

Description

High-durability reinforced concrete structure Technical Field The invention relates to the technical field of reinforced concrete structures, in particular to a reinforced concrete structure with high durability. Background In the field of modern architecture, steel bars are used as core reinforcing materials in concrete structures, and the durability of the steel bars is directly related to the service life and safety performance of the building. However, steel bars are easy to rust in humid, salt or chemical substance erosion environments, so that concrete cracks, structural strength is reduced, potential safety hazards are even caused, and the steel bars have higher corrosion risks in scenes with higher corrosion risks, such as ocean platforms, chemical facilities and the like. To ensure the durability of the reinforced concrete, a suitable material should be selected. In modern construction, the columns serve as important load-bearing members of the structure, the load-bearing capacity and the earthquake-resistant properties of which directly influence the safety and stability of the building. However, due to long-term use or external environmental effects, the column may be damaged or fail to meet new load requirements, such as external damage and steel rust. Therefore, some buildings use steel-concrete structures, which combine the tensile property and the compressive property of the steel section, have the characteristics of good earthquake resistance, strong durability, excellent fire resistance and the like, and the steel-concrete structures are mixed structures of the steel section and the concrete, and the steel-concrete structures have high durability, but are complex in construction process and high in construction cost, and are required to be comprehensively selected by combining engineering requirements and economy. Based on the problems of concrete cracking, structural strength reduction caused by reinforcement corrosion and the like existing in reinforced concrete with reinforcing steel bars as cores in a concrete structure in the prior art, and the problems of complex construction process and high construction cost of a reinforced concrete structure, the skilled person in the art is required to develop a reinforced concrete structure with high durability, stable construction structure and high durability, and the complexity of the construction process is reduced, and meanwhile, the construction cost is reduced. Disclosure of Invention The object of the present invention is to provide a reinforced concrete structure of high durability in order to solve the above problems. In order to achieve the above object, the present invention provides the following technical solutions: the invention relates to a high-durability reinforced concrete structure, which comprises: Four mutually parallel grouting steel pipes, wherein four groups of grouting steel pipes are uniformly distributed in the circumferential direction, and a transverse fixed steel plate is connected between every two adjacent grouting steel pipes; Binding steel bars are arranged on the inner sides of the four grouting steel pipes, and concrete is poured; The outer sides of the four grouting steel pipes and the transverse fixed steel plates are provided with sandwich structures, the sandwich structures are interlayers which continuously encircle the outer sides of the four grouting steel pipes and the transverse fixed steel plates, and the sandwich structures are filled with anti-corrosion layers; and an outer concrete layer is poured on the outer side of the sandwich structure. Further, concrete is poured into the grouting steel pipe. Further, the transverse fixed steel plates between every two adjacent grouting steel pipes are a plurality of groups which are arranged continuously at intervals. Further, the concrete poured on the inner sides of the four grouting steel pipes is limited to the inner side positions of the transverse fixed steel plates through templates. Further, the side wall of the grouting steel pipe is connected with an embedded anchor rod, the embedded anchor rod is annular and extends to the center position between the four grouting steel pipes, the embedded anchor rod is connected with the binding steel bars in a welded mode, and the embedded anchor rods are arranged on the side wall of the grouting steel pipe in multiple groups and are distributed evenly in an axial direction of the grouting steel pipe at intervals. Further, the sandwich structure comprises an outer sleeve sleeved on the outer side of the grouting steel pipe and a closed steel plate positioned on the outer side of the transverse fixed steel plate; And each two adjacent groups of the grouting steel pipes are connected between two groups of the outer sleeves to form a sandwich structure surrounding the outer sides of the four grouting steel pipes and the transverse fixed steel plates. Furthermore, interlayer spaces are reserved between the outer sl