CN203594167U - Protection structure for outer wall of concrete pre-buried steel pipe - Google Patents
Protection structure for outer wall of concrete pre-buried steel pipe Download PDFInfo
- Publication number
- CN203594167U CN203594167U CN201320660072.XU CN201320660072U CN203594167U CN 203594167 U CN203594167 U CN 203594167U CN 201320660072 U CN201320660072 U CN 201320660072U CN 203594167 U CN203594167 U CN 203594167U
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- steel pipe
- concrete
- wall
- elastic layer
- buried
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 76
- 239000010959 steel Substances 0.000 title claims abstract description 76
- 239000010426 asphalt Substances 0.000 claims abstract description 9
- 239000000853 adhesive Substances 0.000 claims abstract description 6
- 230000001070 adhesive effect Effects 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims description 11
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 11
- 238000005336 cracking Methods 0.000 abstract description 3
- 230000006378 damage Effects 0.000 abstract description 2
- 238000004078 waterproofing Methods 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 abstract 1
- 230000029142 excretion Effects 0.000 description 2
- 239000012943 hotmelt Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000036244 malformation Effects 0.000 description 1
- 238000012946 outsourcing Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses a protection structure for the outer wall of a concrete pre-buried steel pipe. The protection structure comprises a steel pipe in the concrete, wherein a plurality of fixing steel bars are arranged on the outer side of the steel pipe; an elastic cushion layer wraps the outer wall of the steel pipe, and is made of SBS modified asphalt waterproofing sheet or asphalt felt and arranged between the steel pipe and the concrete, and an adhesive is adopted for sealing joints. The protection structure ensures that the steel pipe is free in case of concrete deformation with the elastic cushion layer arranged on the outer wall of the pre-buried steel pipe to allow the pre-buried steel pipe not to be in direct contact with the concrete, and as a result, the steel pipe pre-buried in the concrete is prevented from deformation and cracking. Meanwhile, during the early-stage concrete pouring process, concrete aggregate cannot directly impact the outer wall of the steel pipe when entering into a bin; with the elastic cushion layer, the steel pipe pre-buried in the concrete is protected from damage.
Description
Technical field
The utility model relates to embedded steel tube in a kind of concrete, especially relates to a kind of concrete embedded outer wall of steel pipe safeguard structure.
Background technology
At present, in concrete embedded steel tube as water delivery, oil transportation, gas pipeline, application and extensively.In Practical Project, because concrete is mainly as primary structure member, concrete, in loading process, produces moderate finite deformation, because embedded steel tube and concrete deformation can not be coordinated completely, make pre-buried steel pipe in concrete often occur strain cracking, thereby leak, the later stage repairs very difficult, because concrete is made up of large particle diameter aggregate and cement mortar, concrete is in the process of putting in storage, and concrete aggregate directly impacts steel pipe, can cause outer wall of steel pipe to occur impact failure in various degree.
Utility model content
For addressing the above problem; the utility model provides a kind of concrete embedded outer wall of steel pipe safeguard structure; by one deck cushion being set at concrete embedded outer wall of steel pipe; thereby steel pipe occurs that torsional deformation even ftractures while avoiding compatibility of deformation between steel pipe and concrete inconsistent, in concreting process, reach the object of protection outer wall of steel pipe simultaneously.
The utility model is achieved by following technical solution.
A kind of concrete embedded outer wall of steel pipe safeguard structure, comprises the steel pipe being placed in concrete, and described steel pipe outside is provided with some fixing reinforcing bars, is enclosed with one deck elastic layer at outer wall of steel pipe.
Described elastic layer is between steel pipe and concrete.
The thickness of described elastic layer is 2.5mm.
Described elastic layer adopts SBS modified asphalt waterproof coiled material or bituminous felt.
Described elastic layer adopts adhesive to seal at interface.
The beneficial effects of the utility model are:
Compared with prior art, the utility model, by one deck elastic layer being set at embedded steel tube outer wall, makes embedded steel tube directly not contact with concrete, when concrete deformation, can guarantee that steel pipe is freely, thereby avoid pre-buried steel pipe in concrete to occur strain cracking phenomenon.Simultaneously, in early stage concreting process, concrete aggregate can directly not clash into outer wall of steel pipe in the process of putting in storage, and in concreting process, the embedded steel tube in concrete is played a protective role, thereby avoid embedded steel tube destroyed by elastic layer.The utility model is simple in structure, easy to implement, is conducive to strengthen the deformability that steel pipe adapts to external wrapping concrete, and after destroying for the later stage, repairing difficult position has larger using value.
Accompanying drawing explanation
Fig. 1 is embedded steel tube fixed structure schematic diagram described in the utility model;
Fig. 2 is that embedded steel tube outer wall is set up structural representation after elastic layer;
Fig. 3 is structural representation after the utility model concreting.
In figure: 1-steel pipe, 2-fixes reinforcing bar, 3-elastic layer, 4-concrete.
The specific embodiment
Further describe the technical solution of the utility model below in conjunction with accompanying drawing, but described in claimed scope is not limited to.
As shown in Figure 1 to Figure 3, the concrete embedded outer wall of steel pipe safeguard structure of one described in the utility model, comprises the steel pipe 1 being placed in concrete 4, and described steel pipe 1 outside is provided with some fixing reinforcing bars 2, is enclosed with one deck elastic layer 3 at steel pipe 1 outer wall.The technical program is mainly used at the interior embedded steel tube 1 of concrete 4; by one deck elastic layer 3 being set at steel pipe 1 outer wall; thereby steel pipe 1 occurs that torsional deformation even ftractures while avoiding compatibility of deformation between steel pipe 1 and concrete 4 inconsistent, can in concrete 4 casting process, protect steel pipe 1 outer wall simultaneously.
Described elastic layer 3 is between steel pipe 1 and concrete 4.Adopt the technical program, can avoid vibrating and directly destroy steel pipe 1 outer wall in the time that concrete 4 is built, elastic layer 3 can be avoided destroying steel pipe 1 because of extruding in the time of concrete 4 malformation simultaneously.
The thickness of described elastic layer 3 is 2.5mm.
Described elastic layer 3 adopts SBS modified asphalt waterproof coiled material or bituminous felt.SBS modified asphalt waterproof coiled material, this coiled material has good resistance to elevated temperatures, can in the temperature range of-25～+ 100 ℃ of degree, use, have higher elasticity and fatigue durability, and up to 1500% elongation rate and stronger puncture-resistant ability, tear-resistant ability.Be suitable for cold district, and distortion and the larger industry of vibration and the waterproofing of civilian construction.The utility model preferentially adopts SBS modified asphalt waterproof coiled material can obtain the better technique effect that obtains.
Described elastic layer 3 adopts adhesive to seal at interface.Closing seam place employing hot melt or cold bonding method bonding.
Further describe implementation step of the present utility model below in conjunction with accompanying drawing.
The utility model, before concreting, mainly carries out in accordance with the following steps:
The first step, fixes embedded steel tube 1: as shown in Figure 1, at the good some fixing reinforcing bars 2 of steel pipe 1 arranged outside, by fixing reinforcing bar 2, embedded steel tube 1 is fixed;
Second step, elastic layer 3 is set: as shown in Figure 2, at steel pipe 1 outer wall parcel one deck elastic layer 3, according to actual conditions, elastic layer material can adopt SBS modified asphalt waterproof coiled material, bituminous felt or other materials that 2.5mm is thick, in the time of parcel elastic layer 3, adopt adhesive to seal at the interface of elastic layer 3;
The 3rd step, concreting: as shown in Figure 3, after the above-mentioned first step and second step complete, to steel pipe 1 outside concreting 4.
Below in conjunction with pillow dam factory building catchment excretion embodiment further illustrate application of the present utility model.
Between pillow dam factory building main frame, bent columns pre-buried Q235 steel pipe in downstream carries out the roofing excretion of catchmenting.Because downstream bent columns is higher, for preventing the destruction of concrete vibrating to draining steel pipe in work progress, and when later stage operation bent columns generation lateral displacement, thereby draining steel pipe can adapt to concrete deformation and keep good draining barrier performance, increase following measures: be close to bent columns gutter outsourcing one deck SBS modified asphalt waterproof coiled material as elastic layer, be coated with adhesive at draining steel pipe and coiled material contact surface, close seam place and adopt hot melt or cold bonding method bonding.By taking the technical program, while having avoided compatibility of deformation between steel pipe and concrete inconsistent, steel pipe occurs that torsional deformation even ftractures.In concreting process, can reach the object of protection outer wall of steel pipe simultaneously.Compared with prior art, the utility model is conducive to strengthen the deformability that steel pipe adapts to external wrapping concrete, and after destroying for the later stage, repairing difficult position has larger using value.
Claims (5)
1. a concrete embedded outer wall of steel pipe safeguard structure, comprises the steel pipe (1) being placed in concrete (4), it is characterized in that: described steel pipe (1) outside is provided with some fixing reinforcing bars (2), is enclosed with one deck elastic layer (3) at steel pipe (1) outer wall.
2. the concrete embedded outer wall of steel pipe safeguard structure of one according to claim 1, is characterized in that: described elastic layer (3) is positioned between steel pipe (1) and concrete (4).
3. the concrete embedded outer wall of steel pipe safeguard structure of one according to claim 1, is characterized in that: the thickness of described elastic layer (3) is 2.5mm.
4. the concrete embedded outer wall of steel pipe safeguard structure of one according to claim 1, is characterized in that: described elastic layer (3) adopts SBS modified asphalt waterproof coiled material or bituminous felt.
5. the concrete embedded outer wall of steel pipe safeguard structure of one according to claim 1, is characterized in that: described elastic layer (3) adopts adhesive to seal at interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320660072.XU CN203594167U (en) | 2013-10-24 | 2013-10-24 | Protection structure for outer wall of concrete pre-buried steel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320660072.XU CN203594167U (en) | 2013-10-24 | 2013-10-24 | Protection structure for outer wall of concrete pre-buried steel pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203594167U true CN203594167U (en) | 2014-05-14 |
Family
ID=50675062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320660072.XU Expired - Lifetime CN203594167U (en) | 2013-10-24 | 2013-10-24 | Protection structure for outer wall of concrete pre-buried steel pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203594167U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108240713A (en) * | 2017-12-11 | 2018-07-03 | 三峡大学 | A kind of geothermal collecting apparatus in diaphram wall |
| CN114576468A (en) * | 2022-01-25 | 2022-06-03 | 华能澜沧江水电股份有限公司 | Diversion type penstock protection device |
-
2013
- 2013-10-24 CN CN201320660072.XU patent/CN203594167U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108240713A (en) * | 2017-12-11 | 2018-07-03 | 三峡大学 | A kind of geothermal collecting apparatus in diaphram wall |
| CN114576468A (en) * | 2022-01-25 | 2022-06-03 | 华能澜沧江水电股份有限公司 | Diversion type penstock protection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140514 |
|
| CX01 | Expiry of patent term |