CN204163283U - A kind of reinforced concrete structure distributed anchoring muscle - Google Patents

Abstract

The utility model discloses a distributed anchoring reinforcement for reinforced concrete structure, which comprises original reinforcement and scattered reinforcement arranged in the reinforced concrete reinforcement member and the concrete anchorage member, and the original reinforcement includes a horizontal section of the reinforcement and a vertical section of the reinforcement. Straight sections, the dispersed reinforcing bars include a horizontal section of parallel bars, a bent section of parallel bars and a vertical section of parallel bars. In the component, the paralleled vertical section of the original steel bar and the paralleled bent section and paralleled vertical section of the dispersed steel bar are dispersedly arranged in the concrete anchor member. The utility model can make the outer surfaces of the two steel bars in the concrete anchoring member completely covered by the concrete, realize sufficient bonding with the concrete, reduce the anchoring length, and achieve the purpose of saving steel bars.

Description

Distributed anchoring and reinforcement for reinforced concrete structure

technical field

The utility model belongs to the field of anchorage of reinforced concrete members under stress, and in particular relates to a distributed anchorage and reinforcement for reinforced concrete structures.

Background technique

With the emergence of a large number of super-high, long-span, and heavy-duty conditions, large-scale beams and columns commonly appear in buildings. When reinforced concrete is used for components, dense reinforcement or excessively thick reinforcement often occurs. In order to solve the difficulties in design and construction caused by thick steel bars and dense reinforcement, the "Code for Design of Concrete Structures" (GB 50010 - 2010) proposed that the reinforced steel bars can be arranged in parallel, especially in the densely reinforced areas of beams, such as As shown in FIG. 1 , the two reinforced bars 1 include a paralleled horizontal section 101 arranged in a reinforced concrete reinforced member a and a paralleled vertical section 102 arranged in a concrete anchor member b. The bonding force between steel bar and concrete is determined by the surface area of the steel bar wrapped by concrete. When the steel bar is not combined, the concrete-wrapped outer surface of a single steel bar is equal to the outer surface of the steel bar in the concrete. Since the two steel bars are 1 The outer surface c of the concrete wrapped in the concrete (see Figure 2) is less than the sum of the outer surfaces of the two steel bars 1, and the bond between the single steel bar and the concrete is lower than that before the bar is combined at the same length after the bar is combined, so the anchorage of the steel bar after the bar is combined The anchoring force standard can only be achieved when the length is increased compared with the anchorage length of a single steel bar. The specific method is: the parallel bar is calculated as a single equivalent steel bar, and the equivalent diameter of the equivalent steel bar is converted and determined according to the principle of equal cross-sectional area. Converted according to the principle of equivalent diameter, the anchorage length of the stressed steel bar after the reinforcement is much longer than that without the reinforcement, resulting in an increase in the amount of reinforcement.

Utility model content

Aiming at the increase in the amount of steel bars caused by the increase in the anchorage length after the reinforced steel bars are combined, the purpose of the utility model is to provide a distributed anchoring and reinforcing bar for reinforced concrete structures, so as to reduce the anchorage length and save steel bars.

The technical scheme of the utility model is achieved in that:

Dispersed anchoring and reinforcing bars are used for reinforced concrete structures, including undisturbed reinforcing bars and dispersed reinforcing bars arranged in reinforced concrete and reinforced concrete members and concrete anchoring members. Including the horizontal section of parallel reinforcement, the bending section of parallel reinforcement and the vertical section of parallel reinforcement, the horizontal sections of the undisturbed steel bars and the scattered steel bars are closely attached to each other and arranged in the reinforced concrete and reinforced concrete member, and the undisturbed steel bars The parallel reinforcement vertical section and the parallel reinforcement bending section and the parallel reinforcement vertical section of the scattered steel bars are dispersedly arranged in the concrete anchor member.

Beneficial effects of the utility model:

The distributed anchoring reinforcement of the utility model adopts the original steel bar and the scattered steel bar, wherein the straight section of the original steel bar and the scattered steel bar is arranged in the reinforced concrete bar, and the vertical section of the original steel bar is connected with the scattered steel bar. The bending section and the vertical section of the parallel reinforcement are distributed in the concrete anchoring member, so that the outer surface of the two steel bars in the concrete anchoring member is completely wrapped by the concrete, and the full bond with the concrete is realized. According to the equivalent The conversion of the diameter principle, compared with the existing reinforcement, can reduce the anchorage length and achieve the purpose of saving steel bars.

Further illustrate the technical scheme of the utility model below in conjunction with accompanying drawing.

Description of drawings

Fig. 1 is a schematic diagram of existing anchoring and reinforcement in reinforced concrete members.

Fig. 2 is a schematic cross-sectional view of the parallel reinforcement in Fig. 1 .

Fig. 3 is a schematic diagram of distributed anchoring and reinforcement for reinforced concrete structures of the present invention.

Detailed ways

As shown in Figure 3, the reinforced concrete structure of the present invention uses distributed anchoring and reinforcement, including the undisturbed reinforcement 1 and the dispersed reinforcement 1' in the reinforced concrete rebar component a and the concrete anchorage component b, and the undisturbed reinforcement 1 includes The parallel reinforcement horizontal section 101 and the parallel reinforcement vertical section 102, the dispersed reinforcement 1 'comprises the parallel reinforcement horizontal section 101', the parallel reinforcement bending section 103' and the parallel reinforcement vertical section 102', the original reinforcement 1 and the dispersed reinforcement The parallel reinforcement horizontal sections 101, 101' of the steel bars 1' are arranged side by side in the reinforced concrete reinforcement member a, and the parallel reinforcement vertical sections 102 of the original reinforcement bars 1 and the parallel reinforcement of the dispersed reinforcement bars 1' The bent section 103' and the reinforced vertical section 102' are distributed in the concrete anchor member b.

Because the parallel reinforcement vertical section 102 of the original steel bar 1 and the parallel reinforcement bending section 103' and the parallel reinforcement vertical section 102' of the scattered reinforcement 1' are dispersedly arranged in the concrete anchor member b, they can be integrated with the concrete The full contact can reduce the length of the anchoring steel part, so as to save the steel bar.

Claims (1)

1. a kind of reinforced concrete structure uses dispersed type anchorage and reinforcement, comprises the undisturbed steel bar and the dispersed reinforcement that are located in reinforced concrete and reinforcement member and the concrete anchor member, and described undisturbed reinforcement comprises and rebar horizontal section and rebar vertical section, It is characterized in that the dispersed reinforcement includes a parallel reinforcement horizontal section, a parallel reinforcement bending section and a parallel reinforcement vertical section. In the component, the paralleled vertical section of the original steel bar and the paralleled bent section and paralleled vertical section of the dispersed steel bar are dispersedly arranged in the concrete anchor member.