Floor slab hogging moment steel bar protection layer control device and using method thereof

Abstract

The invention discloses a floor slab hogging moment steel bar protective layer control device and a using method thereof. The protective layer control device is formed by bending deformed steel bars and comprises a supporting arc, two horizontal supporting legs, two vertical supporting legs and two front supporting points, wherein the two horizontal supporting legs, the two vertical supporting legs and the two front supporting points are symmetrically arranged, the top ends of the two horizontal supporting legs are connected to the two ends of the supporting arc correspondingly, the bottom ends of the horizontal supporting legs are connected to one ends of the vertical supporting legs, furthermore, the horizontal supporting legs symmetrically arranged in the protective layer control deviceare composed of straight sections L3, the horizontal supporting legs are perpendicular to the vertical supporting legs in the horizontal direction, and the smooth upward bending length of the connecting ends of the horizontal supporting legs and a supporting arc section is D. According to the floor slab hogging moment steel bar protection layer control device and the using method thereof, the design stress position of the floor slab reinforcing steel bar can be guaranteed, the steel bar deformation and shifting caused by treading board ribs is prevented, the device is not prone to topple, thethickness of a floor slab and the thickness of a reinforcing steel bar protection layer can be controlled at the same time, construction is convenient, and the construction quality is improved.

Description

technical field [0001] The invention relates to the field of building construction, in particular to a floor negative moment reinforcement protection layer control device and a method for using the same. Background technique [0002] In construction engineering, the common way to control the thickness of the protective layer of negative moment steel bars in the floor is to use concrete pads to control the thickness of the protective layer of negative moment steel bars. Blocks are easy to shift or fall off and cannot play the role of controlling the protective layer, causing the protective layer to fail to meet the requirements; [0003] In addition, in the control of the protective layer of negative moment steel bars, a large number of concrete pads are often needed for support, resulting in waste of materials. When the steel bars are trampled or the local load is too large during construction, the concrete supports are easily crushed, collapsed or displaced. , which affect...

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Problems solved by technology

[0002] In construction engineering, the common practice to control the thickness of the protective layer of negative moment steel bars in the floor is to use concrete pads to control the thickness of the protective layer of negative moment steel bars. During the construction process, the concrete pads are easily broken and cannot be fixed with negative moment steel bars. Blocks are easy to shift or fall off and cannot play the role of controlling the protective layer, causing the protective layer to fail to meet the requirements;

[0003] In addition, in the control of the protective layer of negative moment steel bars, a large number of concrete pads are often required to support, resulting in waste of materials. When the steel bars are trampled or the local load is too large during construction, the concrete supports are easily crushed, collapsed or displaced. , which affects the construction quality of the slab, and the traditional concrete pad support part belongs to the weak point of the floor slab, and there is a big hidden danger of water seepage in the later stage;

[0004] In addition, for the control of the thickness of the floor slab, the elevation control is usually adopted, and the corresponding elevation is marked on the steel bar of the adjacent column, and the thickness of the floor slab is controlled by pulling wires and leading measurements.

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