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Preparation method of prestressed reinforced concrete slab combined septic tank and septic tank thereof

A technology of reinforced concrete slabs and prestressed steel bars, applied in the field of preparation of prestressed reinforced concrete slab-type combined septic tanks, can solve the problem of increasing component section size and steel consumption, component section size and self-weight, section size and Self-heaviness and other problems, to achieve the effect of reducing the structure's self-weight, light weight of components, and good crack resistance

Inactive Publication Date: 2016-05-11
肖世富
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Therefore, in order to meet the requirements of deformation and crack control, the current reinforced concrete combined septic tanks have greatly increased the cross-sectional size and steel consumption of the components, resulting in excessive cross-sectional dimensions and self-weight of the components, making the septic tank of ordinary reinforced concrete components The tank has large volume, large cross-sectional size and self-weight, high cost, and laborious transportation and assembly. However, the current reinforced concrete combined septic tank is difficult to achieve the compressive strength required by the national standard

Method used

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  • Preparation method of prestressed reinforced concrete slab combined septic tank and septic tank thereof
  • Preparation method of prestressed reinforced concrete slab combined septic tank and septic tank thereof
  • Preparation method of prestressed reinforced concrete slab combined septic tank and septic tank thereof

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Embodiment 1

[0042] Embodiment 1: preparation method of the present invention comprises the steps:

[0043] (1) Prepare the prestressed reinforced concrete slab 8 according to the requirements and the set size. Four prestressed reinforced concrete slabs erected laterally form four sides of a rectangular single cell body. The prestressed reinforced concrete slab is a rectangular slab , the preparation of prestressed reinforced concrete slabs includes:

[0044] Load-shear prestressed reinforcement 5, the length of the prestressed reinforcement is greater than the length of the prestressed reinforced concrete slab;

[0045] Arrange several prestressed steel bars parallel to the length of the plate in the steel mold, and set through holes and connection groove modules at predetermined positions in the steel mold, or set several longitudinal steel bars on the prestressed steel bars according to design requirements to form steel bars Mesh, but only tension is applied to the prestressed reinforc...

Embodiment 2

[0061] Embodiment 2: The prestressed reinforced concrete slab is 2m long and 1.5m wide, and it is rectangular. The prestressed steel bars are cold-drawn threaded steel bars with a diameter of 8mm, the spacing between the prestressed steel bars is 9cm, and the spacing between the steel bars with a diameter of 5mm in the longitudinal direction is 20cm. The modules with through holes and connecting grooves are set at the position. Nuts and anchorages are used to form the tension on the long steel formwork. The tension control stress range is 0.70fptk. The concrete strength grade is C30. The water: cement: sand: gravel in the concrete (weight) is 0.45:1:1.70:3.73, wherein the cement strength grade is 42.5, and the maximum particle size of coarse aggregate is 20mm. When the concrete in the steel mold is cured and hardened to 75% of the concrete design strength, and the concrete age is 7 days, the prestressed steel bars are loosened, and the preset through holes and connecting groove...

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Abstract

The invention belongs to a prestressed reinforced concrete slab type combined septic tank and a making method of the prestressed reinforced concrete slab type combined septic tank. The making method comprises the steps of making prestressed reinforced concrete slabs, making a single tank body and the parts thereof, assembling and the like. Four tank walls of the single tank body of the septic tank are formed by four prestessed reinforced concrete slabs; the single tank body is a rectangular frame body, the reinforced concrete slabs are rectangular slabs, two ends of adjacent prestressed reinforced concrete slabs are connected as a whole by connecting angle parts formed by pouring of concrete to form a septic tank unit comprising 2-5 single tank bodies which are connected in series and a top cover arranged on the upper ends of the single tank bodies at the top; and more than two septic tank units are combined in parallel, and through holes of adjacent septic tank units are mutually communicated. According to the invention, the prestressed reinforced concrete slab element is used as the bearing wall of the tank body; and the septic tank has the characteristics of short construction period, simple construction, good crack resistance, high stiffness, material saving, light self weight of elements, and good shear resistance, fatigue resistance and stability of the elements, low construction cost and durability; and the making method is simple and practical.

Description

technical field [0001] The invention belongs to a preparation method of a prestressed reinforced concrete slab-type combined septic tank and the septic tank. Background technique [0002] The septic tank is usually located next to the building, and the sewage used by the people in the building is discharged into the septic tank through the pipeline. The dirt in the sewage settles at the bottom of the tank, and the clean water is discharged from the septic tank. Septic tanks are usually constructed manually by manually digging pits and then laying bricks to seal the roof. This method of building tanks has a long construction period, troublesome construction, poor quality, substandard sewage discharge, and high construction costs. For this reason, the existing masonry septic tanks have been replaced by reinforced concrete combined septic tanks. The reinforced concrete combined septic tank is first prefabricated in the factory to form the structural components of the tank body...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F11/04
Inventor 肖世富
Owner 肖世富