CN205382426U - Bridge concrete protection layer cushion - Google Patents

Abstract

The utility model provides a bridge concrete protection layer cushion, includes: the cushion body, reinforcing bar groove, bundle silk, a bundle silk hole, steel reinforcement cage and reinforcing bar, the external shape of cushion be the toper, its upper end be the reinforcing bar groove, sets up corresponding two sets of bundle silk hole in position in the both sides position in reinforcing bar groove, has the silk of bundle in inside interlude of pricking the silk hole, the bundle thread is traditional iron wire structure, is used for locking the reinforcing bar, makes spontaneous cushion not take place the displacement, the internal portion of cushion still put into the reinforcing bar to connect the location through a plurality of steel reinforcement cages, fix through the welded form between the two.

Description

A kind of bridge concrete protective layer cushion block

Technical field

This utility model relates to the fields such as bridge concrete protective layer, refers specifically to a kind of bridge concrete protective layer cushion block.

Background technology

Concrete cover refers in concrete structure member, and the outer rim of steel bar stress outermost layer reinforcing bar, to the concrete layer between concrete surface, is called for short protective layer.In xoncrete structure; the composite that armored concrete is made up of reinforcing bar and two kinds of different materials of concrete; it is they cooperative bases that bi-material has good adhesive property; from reinforcing bar bond-anchorage angle, concrete cover is claimed; it is to ensure that reinforcing bar and concrete energy cooperation about, and makes reinforcing bar give full play to calculating desirable strength.Reinforcing bar is exposed in air or other media; easily got rusty by erosion; the effective cross-section making reinforcing bar reduces; affect structure stress; it is thus desirable to specify the different concrete cover minimum thickness using environment according to life requirement, to ensure that the corrosion of structural reliability does not occur to reduce component reinforcing bar in design life.In the work of pouring reinforcement concrete protective layer, the use for cushion block is indispensable.For cushion block, should have enough intensity, not broken, corrosion-resistant.It is of the required size.This problem has caused enough attention at present.It is well combined with concrete, has close harmomegathus performance.Simple with bar connecting, energy self-locking, do not fall off.With concrete in conjunction with bad, or harmomegathus performance difference is too many, is easy for around cushion block producing crack even easily coming off, so that cushion block place becomes the bad joint of strength weak, also becomes the break-through point of moisture attacks.Thus because of corrosion, reinforcing bar causes that effective rank street area of reinforcing bar reduces, so that the intensity of reinforced concrete structure framework reduces, cause the generation destroyed.

Utility model content

This utility model device is a kind of bridge concrete protective layer cushion block; it is requisite parts in a kind of pouring reinforcement concrete protective layer work; it directly affects the quality building protective layer quality; the material of its selection is the concrete blended with the concrete built; the spontaneous profile of cushion block designs for inverted cone; have the tied silk design being easy to fixing reinforcing bar and self-lock ability can be effectively provided, insert steel bar framework design inside cushion block and make the structural strength of cushion block increase substantially, meet instructions for use.

The technical solution adopted in the utility model is: a kind of bridge concrete protective layer cushion block; including: cushion block body, steel bar groove, tied silk, tied silk hole, steel reinforcement cage and reinforcing bar; described cushion block body profile is taper; its upper end is steel bar groove; two side positions at steel bar groove offer two groups of tied silk holes that position is corresponding, are interspersed with tied silk in the inside in tied silk hole, and tied silk is traditional iron wire structure; it is used for locking reinforcing bar, makes spontaneous cushion block not be subjected to displacement；Described pad bulk inner has also inserted reinforcing bar, and is attached location by multiple steel reinforcement cages, and the form by welding is fixed between the two.

The beneficial effects of the utility model: 1, the product of this utility model design; overall structure is simple; stability is strong; structure with tied silk; formation locking effect between cushion block and reinforcing bar can be made; cushion block will not be made to occur because of the situation of vibrations or other factor generation change in location, cause that protective layer can not get the state of the best in the process built.2, the product of this utility model design, in the structure of the reinforcing bar that cushion block is built into, it is possible to overall construction intensity is greatly improved, the intensity that reason is enough after forming concrete cover, so phenomenon that will not be chipping.3, the product of this utility model design; the surface structure of its cushion block body designs for back taper; also it is not easy to come off after building protective layer such that it is able to be effectively protected internal bar construction by complicated chemistry affect, it is to avoid because steel bar corrosion causes that overall construction intensity declines.4, the product of this utility model design, surface, outside reducing place be all fillet structure, it is to avoid stress concentration and the generation causing being easily broken off hidden danger that exists.

Accompanying drawing explanation

Fig. 1 is the overall structure schematic diagram of this utility model product.

Fig. 2 is the A-A structure cut-away view of this utility model product.

Detailed description of the invention

According to Fig. 1, Fig. 2, present embodiment is illustrated.

A kind of bridge concrete protective layer cushion block; including: cushion block body 1, steel bar groove 2, tied silk 3, tied silk hole 4, steel reinforcement cage 5 and reinforcing bar 6; described cushion block body 1 profile is taper; its upper end is steel bar groove 2; two side positions at steel bar groove 2 offer two groups of tied silk holes 4 that position is corresponding, are interspersed with tied silk 3 in the inside in tied silk hole 4, and tied silk 3 is traditional iron wire structure; it is used for locking reinforcing bar, makes spontaneous cushion block not be subjected to displacement；The internal reinforcing bar 6 of also having inserted of described cushion block body 1, and it is attached location by multiple steel reinforcement cages 5, the form by welding is fixed between the two.

Operation principle:

Concrete cover build by building mould bases to complete work; reinforcing steel structural member is placed casting area; by cushion block, reinforcing steel structural member is stood on tiptoe; it is intended to build protective layer thickness adjusted by the specification of cushion block; after selecting the cushion block of suitable specification; it is arranged in important system point position place, it is ensured that reinforcing steel structural member is indeformable.Reinforcing rod is placed in steel bar groove 2; tied up by the two of top groups of tied silks 3; ensure that cushion block can be stably fixed on reinforcing bar; then carry out concrete building; after having built; due to beneficial effect content more than this cushion block, it is possible to make the protective layer after building reach top quality state.

The foregoing of this device describes detailed description of the invention of the present utility model by reference to Fig. 1, Fig. 2, it will be understood by a person skilled in the art that, this utility model product be not limited to embodiment described above, when not necessarily departing from spirit of the present utility model, various modifications may be made, and described amendment also should be included within scope of the present utility model.Scope of the present utility model should be limited by claims and equivalent thereof.

Claims (1)

1. a bridge concrete protective layer cushion block, including: cushion block body (1), steel bar groove (2), tied silk (3), tied silk hole (4), steel reinforcement cage (5) and reinforcing bar (6), it is characterised in that:

Described cushion block body (1) profile is taper, its upper end is steel bar groove (2), two side positions at steel bar groove (2) offer two groups of tied silk holes (4) that position is corresponding, it is interspersed with tied silk (3) in the inside of tied silk hole (4), tied silk (3) is traditional iron wire structure, it is used for locking reinforcing bar, makes spontaneous cushion block not be subjected to displacement；The internal reinforcing bar (6) of also having inserted of described cushion block body (1), and it is attached location by multiple steel reinforcement cages (5), the form by welding is fixed between the two.