CN209484084U - Large-diameter steel reinforced concrete drainage pipe - Google Patents

Abstract

A kind of large-diameter steel reinforced concrete drainage pipe, including concrete drain tile body, the preset ellipse shape rack in concrete drain tile body, oval rack macropinacoid, brchypinacoid correspond to macropinacoid position in the middle part of the external wall of concrete drain tile and left and right hole for hoist are arranged respectively close to the external wall of concrete drain tile and inner wall.The utility model rationally carries out reinforcing bar configuration according to the inside and outside layer ring muscle different bearer power of different parts when drainpipe stress, and tubing is made to save amount of reinforcement under the premise of meeting different stage external pressure load index.

Description

Large-diameter steel reinforced concrete drainage pipe

Technical field

The utility model relates to a kind of drainpipe more particularly to a kind of large-diameter steel reinforced concrete drainage pipes.

Background technique

Currently, the bar frame that internal diameter is more than the large-diameter steel reinforced concrete drainage pipe of 1200mm is generally used double-layer circular Shape structure plays the role of rack forming, to tubing bearing capacity wherein the longitudinal reinforcement of inside and outside layer rack is construction muscle Less, the ring muscle of inside and outside layer plays the role of carrying.

The effect of the inside and outside layer ring muscle of drainpipe different parts is not quite similar, and in drainpipe use process, mainly carries earthing And the gravity laod of the vehicle or deposit above earthing, there are also the gravity of drainpipe itself.After drainpipe installs backfill, Backfill and its deposit above press to drainpipe, and at this moment, drainpipe two sides position outer layer net mounting ring muscle carries drawing and answers Power, interior layer concrete carry action of compressive stress, and inner layer net mounting ring muscle does not almost work；Meanwhile upper and lower two, drainpipe The inner layer net mounting ring muscle of position carries tensile stress, outer concrete carries action of compressive stress, this position outer layer net mounting ring muscle is several It does not work.

That is, when drainpipe is by gravity, the ring muscle and tube body upper and lower two of tube two sides wall outer layer rack The ring muscle of position internal layer rack in action, and the outer layer net of tube two sides wall inner layer net mounting ring muscle and upper and lower two position of tube body Mounting ring muscle does not almost work.

The present domestic production enterprise manufacture inside and outside layer bar frame of drainpipe is assembled in after all using automatic seam-welding machine to form Together, Divisional does not configure uniformly inside and outside layer rack ring muscle, causes the significant wastage of reinforcing bar.

Utility model content

The technical problem to be solved by the present invention is to provide a kind of large-diameter steel reinforced concrete drainage pipes, according to drainpipe Different parts inside and outside layer ring muscle different bearer power when stress and rationally carry out reinforcing bar configuration, make tubing meet different stage (or Earthing) amount of reinforcement is saved under the premise of external pressure load index.

The technical solution of the utility model is:

A kind of large-diameter steel reinforced concrete drainage pipe, including concrete drain tile body, are characterized in that: in the coagulation Preset ellipse shape rack in native drainage conduit body, outer wall of the macropinacoid of oval rack close to concrete drain tile body, ellipse The brchypinacoid of rack close to the concrete drain tile body inner wall, it is corresponding in the middle part of the external wall of the concrete drain tile described in Left and right hole for hoist is arranged in macropinacoid position.

Further, the oval rack is by spaced apart vesica piscis muscle and along concrete drain tile body axial direction cloth The longitudinal lacing wire set is constituted, and the macropinacoid refers to the line up and down of the long axis point of vesica piscis muscle, and the brchypinacoid refers to ellipse The line up and down of the short axle point of circular rings muscle.

Further, between 2 macropinacoid of wall in concrete drain tile body and oval rack and in concrete drain tile Protective layer bracket is arranged at intervals between 2 brchypinacoid of external wall and oval rack.

Further, the protective layer bracket is U-shaped reinforcing bar.

Further, the height of the left and right hole for hoist is the 1/2 of the concrete drain tile body height.

The beneficial effects of the utility model are:

1, make there are enough rack ring muscle at the outer wall of drainpipe two sides position and at the inner wall of upper and lower parts, and in tube body two Rack ring muscle is not arranged at the outer wall of at the inner wall of side and upper and lower two position, and the reinforcing bar of tubing rack different parts is carried out more For the configuration of economical rationality, the bearing capacity of tubing can be improved or save more steel, increases underground pipe network construction in country Today, to construction, more there is its realistic meaning in economical and environment-friendly society, to guarantee that manufactured drainpipe had both been able to satisfy load and has wanted It asks and can significantly save reinforcing bar unnecessary, while saving labour cost and the electricity charge, product cost is greatly lowered.According to The side of label and above and below carry out lifting, transport, inspection and the construction of tubing, can't make to obscure mistake with left and right up and down Position.

2, in recent years, the annual reinforced concrete sewer pipe output in China reaches 400,000 km, and wherein DN1200 or more is advised Lattice account for 1/4 or more of drainpipe total amount, i.e., 100,000 kilometers using the heavy caliber pipe of double steel bar rack, and maximum caliber has reached 3.6m.If pressing II grade of effective Reinforcing Steel Bar Calculation of diameter 1.5m, the every linear meter 55.6kg of standard rack quantity of reinforcement, by this method reinforcing bar Dosage can reduce 40% or more, i.e., every linear meter tubing at least saves 22 kilograms of reinforcing bar, if can promote and apply in the whole nation, every year may be used 2,200,000 tons of reinforcing bar of saving, it is per ton by 4000 yuan of present price calculating, 8,800,000,000 yuan of fund can be saved every year, and economic and social benefit is aobvious It writes.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is the E-E cross-sectional view of Fig. 1；

Fig. 3 is the ellipse grid structure schematic diagram of the utility model；

Fig. 4 is the F direction view of Fig. 2.

Specific embodiment

The utility model is described in detail with reference to the accompanying drawings and examples:

Embodiment 1

As shown, the large-diameter steel reinforced concrete drainage pipe of the utility model, including concrete drain tile body 1, in institute Preset ellipse shape rack 2 in concrete drain tile body 1 is stated, macropinacoid c, d of oval rack 2 are close to concrete drain tile body 1 Outer wall, the inner wall of brchypinacoid a, b of oval rack 2 close to the concrete drain tile body 1.It is described ellipse rack 2 be It is constituted by spaced apart vesica piscis muscle 201 and along longitudinal lacing wire 202 that concrete drain tile body 1 is axially arranged, the length Axial plane c, d refer to the line of the long axis point of vesica piscis muscle 201, and brchypinacoid a, b refers to the short axle point of vesica piscis muscle 201 Line.The position described macropinacoid c, d is corresponded in the middle part of 1 outer wall of concrete drain tile body, and left and right hole for hoist 3 is set.Institute The height for stating left and right hole for hoist 3 is the 1/2 of 1 height of concrete drain tile body.

Between 2 macropinacoid of 1 inner wall of concrete drain tile body and oval rack and in 1 outer wall of concrete drain tile body Protective layer bracket 4 is arranged at intervals between oval 2 brchypinacoid of rack.The protective layer bracket is U-shaped reinforcing bar.

The production method of large-diameter steel reinforced concrete drainage pipe as described above, its step are as follows:

1, it is equipped using vertical vibrating or Core Vibrated Casting Process, gets out external mold and internal model, row is set on the external mold The left and right hole for hoist 3 of water pipe, the hole for hoist 3 are to be formed by casing and are highly the 1/ of 1 height of concrete drain tile body 2。

2, reinforcing bar configuration amount is calculated, oval rack 2 is made by seam welder, the ellipse rack 2 is by being spaced The vesica piscis muscle 201 of arrangement and the composition of longitudinal lacing wire 202 axially arranged along concrete drain tile body 1；Mark ellipse shape net Macropinacoid c, d and brchypinacoid a, b of frame 2, the macropinacoid refer to the line of the long axis point of vesica piscis muscle 201, the short axle Face 202 refers to the line of the short axle point of vesica piscis muscle.

3, it after oval rack 2 completes, is packed into the mold formed by external mold and internal model and by protective layer bracket 4 Fixed position accurately determines prefabricated drainpipe arranged on left and right sides position C, D and upper and lower part using left and right two holes for hoist 3 Position A, B, macropinacoid c, d of oval rack 2 are adjusted on the inside of external mold arranged on left and right sides position C, D；Make oval rack short axle Face a, b are adjusted on the outside of internal model upper and lower parts A, B, and oval rack rack 2 left and right position ring muscle in Pipe forming is made to exist On the outside of tube wall, upper and lower parts ring muscle reinforces 3 surrounding rack reinforcing bar of hole for hoist on the inside of tube wall；

4, casting concrete forms concrete drain tile body 1, prefabricated drainpipe is made；

5, it is drainpipe left and right side that drainpipe production, which finishes the lifting of drainpipe two hole face after maintenance demoulding, His two sides is then above and below, and is marked.

Embodiment 2

The ellipse rack passes through protective layer bracket 4 by the way that circular net is first made again forces it in mold at ellipse Circular net, the other the same as in Example 1.

Protective layer bracket 4 described in above-described embodiment 1, embodiment 2 is long by being arranged at intervals on internal model and oval rack 2 U-shaped reinforcing bar between axial plane and between 2 brchypinacoid of external mold and oval rack is constituted.

The above are only specific embodiments of the present invention, is not intended to limit the utility model, for this field Technical staff for, various modifications and changes may be made to the present invention.Within the spirit and principle of the utility model, Any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.

Claims (5)

1. a kind of large-diameter steel reinforced concrete drainage pipe, including concrete drain tile body, it is characterized in that: being drained in the concrete Preset ellipse shape rack in tube body, the macropinacoid of oval rack close to concrete drain tile body outer wall, oval rack Brchypinacoid corresponds to the macropinacoid in the middle part of the external wall of the concrete drain tile close to the inner wall of the concrete drain tile body Left and right hole for hoist is arranged in position.

2. large-diameter steel reinforced concrete drainage pipe according to claim 1, it is characterized in that: the ellipse rack be by It is constituted every the vesica piscis muscle of arrangement and along longitudinal lacing wire that concrete drain tile body is axially arranged, the macropinacoid refers to ellipse The line up and down of the long axis point of shape ring muscle, the brchypinacoid refer to the line up and down of the short axle point of vesica piscis muscle.

3. large-diameter steel reinforced concrete drainage pipe according to claim 1, it is characterized in that: the wall in concrete drain tile body Setting is spaced between oval rack macropinacoid and between the external wall of concrete drain tile and oval rack brchypinacoid Matcoveredn bracket.

4. large-diameter steel reinforced concrete drainage pipe according to claim 3, it is characterized in that: the protective layer bracket is U-shaped Reinforcing bar.

5. large-diameter steel reinforced concrete drainage pipe according to claim 1, it is characterized in that: the height of the left and right hole for hoist Degree is the 1/2 of the concrete drain tile body height.