CN2041384U - Large ribbed splicing type pressure round pipe made of reinforced concrete - Google Patents

Abstract

The utility model relates to a large ribbed splicing type pressure round pipe made of reinforced concrete, belonging to an F17D pipe. The utility model is characterized in that ribbed splicing type pressure round pipe structure is spliced by a plurality of members each of which is provided with annular ribs and longitudinal ribs on the casing. The large ribbed splicing type pressure round pipe made of reinforced concrete can be used in various fields, such as hydraulic engineering, water supply and sewerage works, bridge engineering, shipping and food industry. The industrial production of the large ribbed splicing type pressure round pipe made of reinforced concrete become possible; the structural engineering of some round pipe with complicated structure and large pipe diameter become enforceable engineering. The industrial production provides reliable condition for saving raw material, reducing engineering time and guaranteeing quality.

Description

Large ribbed splicing type pressure round pipe made of reinforced concrete

The utility model is a kind of reinforced concrete ribbed splicing type pressure pipe.

Belong to the F17D pipeline.

The concrete pipe that adopts in the current lot of domestic and international field all is an even tube wall, and the thickness of pipe is along the tube axial direction no change.This pipe all is the also thickening thereupon of increase pipe thickness with caliber, when caliber reaches more than 3.0 meters, produces a series of problems at design, construction, operation, management everyway.In the general construction, the less pipe of caliber adopts factory to give system more, but when caliber is big, because deadweight big (for example the every pipe joint of the pipe of caliber is heavy more than 9.0 meters can reach the hundreds of ton), adopt factory's system of giving to need large-scale manufacturing mechanism, special transportation vehicle is built special-purpose transport routes and relatively large lifting device.Therefore the normal cast-in-site that adopts, and this needs template construct, installation, dismounting, on-site concrete cast, maintenance etc. that a lot of inconvenience are also arranged, the cast-in-site duration is spun out simultaneously, and raw materials consumption is big, often need stride the construction in season in some cases, need increase a lot of facilities again, will increase the antifreezing heat insulation facility as winter construction, rainy season construction will increase rainproof facility, intermittently stops to produce otherwise just may cause, be difficult to guarantee the concrete placement quality in a word, remarkable in economical benefits reduces., followed so far since the generation but the concrete pressure cast of this round uniform thickness is reached a conclusion after weighing a matter, on pattern, never change.

The object of the present invention is to provide a kind of pressure pipe new structural type and design type---a kind of large-scale combinable pressure circular tube structure of rib type light wall pipe wall.

The characteristics of this structure are that pipe needs by design and execution conditions can be divided into 3.0 meters to 6.0 meters long pipeline sections, each pipeline section is pressed the size and the stress condition of caliber, the cylindrical housings that is divided into several central angles such as grade (is the 1/n pipe, n=4,8 ...), add ring rib and longitudinal rib around each housing, and pour into integrated member with housing, and increased casing rigidity, with regard to integrated member a kind of special-shaped housing structure of not uniform thickness.(its ring rib also can increase setting along the longitudinal direction of housing when needed) is assembled into pipe by design with several special-shaped housings, and reinforced concrete earth pressure pipe again is spliced different pipe sections.It specifically is configured to:

1. external fin type pressure pipe is used for water conservancy, water supply and sewage work conduit pipe more, sees accompanying drawing 1.Its outer hoop rib adopts 20.0cm * 20.0cm when caliber below 5.0 meters, can suitably increase and add setting when pressure increasing or caliber increase.Outer longitudinal rib can adopt 20cm * 20cm when caliber below 5.0 meters, when caliber increases or external load becomes and can suitably strengthen its sectional dimension greatly, but for ease of construction, it is optimal selection, its housing tube wall that vertical rib height preferably is taken as consistent with ring rib height, 5.0 the pipe wall thickness can adopt 16.0cm during the following caliber of rice, when caliber strengthens and can correspondingly be increased to 16.0cm-35.0cm during the external load increasing.When assembly unit, be used for fixing and guarantee whole stressed needs, give between the steel section bar (steel plate or angle steel) that buries with the welding of band steel at seam crossing, its size can adopt the band steel of 10.0cm * 0.6cm, sealing effect between the connection of assembly unit seam and seam between the two hoop ribs and housing interblock two longitudinal ribs is played between pipeline section in processing simultaneously like this, at ring, the longitudinal seam place also will add rubber in addition or asphalt felt is done water treatment.All give on ring rib (1) and the vertical rib (2) and stay bolt hole, connect to engage closely between the assurance seam with bolt during assembly unit, its aperture and pitch-row are decided with caliber, force-bearing situation, for wanting two nuts to tighten in conjunction with tight.Bolt, nut, cushion block etc. all need be made anti-corrosion and handle.

2。The round cofferdam of internal-rib type: see accompanying drawing 2, can be used for bridge pier in the bridge works, construction coffering.

Generally establish two hoop ribs in two ends up and down at every housing, look the situation of dash, the native degree of depth, also can increase when needing, its sectional dimension can adopt 20.0cm * 20.0cm; Two longitudinal ribs are established in the every housing left and right sides, and sectional dimension 20.0cm * 20.0cm can suitably increase the sectional dimension of the close lower floor of vertical rib with the increase of the native degree of depth of dash, but be easy construction, and size should be got consistent being advisable up and down; The housing wall thickness is generally adopted 16.0cm, when the dash soil degree of depth during greater than 50.0 meters, its thickness can increase to 20.0cm-25.0cm, the housing piecemeal is decided on the caliber size, caliber can be divided into 4 in time below 4.0 meters, central angle is 90 °, can be divided into the 6-8 piece when greater than 4.0 meters, and its central angle is 60 °-45 °; Can consider to be divided into 8 or more greater than 8.0 meters calibers.Connect with bolt between seam, establish weldment, make sealing and handle all identical with 1 external fin type pressure pipe.

3. the vertical bunker of rib of column type is used for all kinds of warehouse structure and sees accompanying drawing 3.

Because the round diameter of vertical bunker is all bigger, can be by the assembly unit of Fig. 3 (b) form, form by 8 cylindricality rib housings altogether, the sectional dimension of the rib of column is 20.0cm * 20.0cm, as circular bunker diameter hour, it is assembled to adopt 4 cylindricality rib housings, other various structural requirements and handle as give embedded part, seam connects all identical with 1,2 two kind of structure.

More than the concrete connection detail drawing of each class formation see accompanying drawing 4,5,6,7.

The present invention is the once innovation to traditional classic reinforced concrete tubular type structure design.Thereby make large-sized reinforced concrete pressure pipe plant produced become possibility, also make some structures tubular type structural engineering complicated, that caliber is bigger become the engineering that to implement, the realization batch production is produced, both guaranteed the quality of structure, production management scientific, can save a large amount of raw material and reduction of erection time again, guarantee construction quality, improve the Security of operation.Its remarkable economic efficiency will obtain in many fields of national economy embodying.With 3.7 mitrons footpath pressure pipe is the required concrete amount of example, the saving concrete square amount 50-60% of the ratio uniform thickness of rib type, and its applicability is strong, of many uses, as the culvert pipe in the hydraulic engineering, inverted-siphon, aqueduct project; Water transport pipeline in the water supply and sewage work, pond, water tower etc.; Bridge pier and Bridge Pier Construction in cable stayed bridge in the road engineering or the large bridge engineering are used the cofferdam; Vertical bunker in marine engineering and the food engineering; Also might use on the pile leg structure engineering of offshore oil production concrete platform, and in some pressurized container.And, be used for some temporary structure and have more characteristics because fabricated construction can have enough to meet the need repeated use.

Description of drawings

Fig. 1, the special-shaped housing piece of external fin type pressure pipe figure

Fig. 2, the round cofferdam of internal-rib type special-shaped housing piece figure

Fig. 3, the vertical bunker of rib of column type

Fig. 4, external fin type pressure pipe elevation

Fig. 5, the 1-1 sectional drawing of Fig. 4

Fig. 6, a place of Fig. 4 is (ring rib) joint figure vertically

Fig. 7, the b place hoop of Fig. 5 (vertical rib) joint figure

1 ring rib among the figure

2 vertical ribs

3 tube wall housings

4 high-strength mixed native protective layers (or high-strength cement mortar sprayed protection)

5 banding pattern steel (weldment)

6(band steel and angle steel) between weld seam

7 steel section bars (angle steel or steel plate)

8 rubber fastening bands

9 reinforcing bars (in the housing)

10 clamping bolts

11 D＝3700um，L＝3600mm，B＝200mm，H＝200mm，t＝150mm，δ＝10mm

The present invention is an example with the engineering of falling the rainbow, and it is as follows to carry out its structural behaviour of finite element method (fem) analysis:

1. housing employing central angle is 90 °

2. shell dimension is long 4.0 meters, 3.7 meters of calibers

3. the ring rib is adopted 20.0 * 20.0cm

Vertical rib is adopted 20.0 * 20.0cm

4. the depth of water load of above 5.0 meters of 1.5 meters soil thickness and soil layer is born on pipe top.

5. pipe is positioned on the aleuritic texture soil layer

6. finite element is analysed and is calculated and optimize that to analyze the housing optimum thickness be 12.0cm-16.0cm

7. in optimum thickness range, in 2.6 condition lower different type surface of shell hoop maximum tension stress minimums, its tensile stress value is less than 1.5kg/cm ²Meet engine request.

Claims (5)

1, a kind of reinforced concrete ribbed splicing type pressure pipe that is used for engineerings such as water conservancy, bridge, plumbing and sea-freight, food is characterized in that reaching the vertical assembled a kind of ribbed splicing type circular tube structure of the integrated poured special-shaped housing structure that forms of rib [2] with ring rib [1] all around by some housings [3].

2,, it is characterized in that the special-shaped shell body member that has ring rib (1) and vertical rib (2) in the pipeline section is by the special-shaped shell construction of some circular arcs that equates that central angle is cut apart according to the said reinforced concrete ribbed splicing type of claim 1 pressure pipe.

3, according to the said reinforced concrete ribbed splicing type of claim 1 pressure pipe, it is characterized in that tube section ends ring rib (1) gives stays bolt hole, fixedly connected with bolt (10) between the pipe end, the inside and outside both sides of circumferential weld are given and are buried steel section bar (7), with the section bar butt welding of adjacent pipe end.

4, according to claim 1 and the said reinforced concrete ribbed splicing type of claim 2 pressure pipe, it is characterized in that giving on the vertical rib between the special-shaped shell body piece and stay bolt hole, fix two special-shaped housings with bolt (10).The available second stage concrete in longitudinal seam place also can give and bury steel section bar (7), with the adjacent housings butt welding.

5, it is characterized in that to make the different ribbing mode circular pipe type structure of inner rib type, external fin formula, external fin formula and rib of column formula according to the said ribbed splicing type pressure of claim 1 pipe.