CN204986035U - Confession, fixed festival of return water be anchor block as an organic whole even - Google Patents
Confession, fixed festival of return water be anchor block as an organic whole even Download PDFInfo
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- CN204986035U CN204986035U CN201520748952.1U CN201520748952U CN204986035U CN 204986035 U CN204986035 U CN 204986035U CN 201520748952 U CN201520748952 U CN 201520748952U CN 204986035 U CN204986035 U CN 204986035U
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- confession
- backwater
- anchor block
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Abstract
The utility model relates to a confession, fixed festival of return water be anchor block as an organic whole even, fix the festival and pour reinforced concrete mound body wherein with it including two parallel arrangement's confession, return water, supply, the fixed festival of return water crosses respectively and stretches out for the outside has confession, return water annular slab and both ends respectively the water supply connecting pipe and the return water connecting pipe of side around the mound body, its characterized in that confession, fixed festival of return water link firmly as an organic wholely through the shaped steel connecting piece, the shaped steel connecting piece is one section H shaped steel or one section channel -section steel, or one section box steel. The beneficial effects of the utility model are that: it reduces to realize that the anchor block volume is showing to the range of application is more extensive, can the volume of reducing the construction, improve the efficiency of construction, make in the construction anchor block manufactured size and concrete curing period reach the requirement to improve the anchor block bulk strength and then improve the firm and stable of heat supply pipeline.
Description
Technical field
The utility model relates to a kind of Direct-Buried Heating Pipeline anchor block, particularly relates to a kind of confession, anchor block that backwater fixed knot is connected as a single entity.
Background technique
Direct-Buried Heating Pipeline, in laying, for holding structure is firm, it is firm, indeformable to locate, separated by a distancely will arrange anchor block.Anchor block generally adopts reinforced concrete construction, be by connecting confession respectively, two confessions be arranged in parallel of backwater heat supply pipeline, backwater fixed knot be cast in reinforced concrete knoll body and formed.Structural type in anchor block pier body is embedded in as shown in Figure 1 for, backwater fixed knot, for, backwater fixed knot B1, B2 be outside respectively with annular slab 21,22 and the connecting tube 11,12 stretching out anchor block front and back sides is crossed at two ends respectively, connecting tube 11,12 is welded to connect with the water supply line laid, water return pipeline respectively as its two ends of pipe joint.
Because anchor block constrains pipe deforming, will bear the very large active force of heat supply pipeline in actual applications, this active force is delivered to concrete pier body by fixed knot, then be delivered to surrounding soil to bear this effect by concrete pier body.
The major defect of existing anchor block structure is, the active force due to heat supply pipeline passes to anchor block by fixed knot completely and offset by surrounding soil, and therefore the size of anchor block is often very large.In engineering construction, by site condition restriction, often can not make satisfactory anchor block by normal size; In addition by restrictions such as durations, often concrete does not reach curing time yet, directly affects the performance quality of anchor block, and finally causing affects the firm and stable of heat supply pipeline.
How to improve anchor block structure, under completing the prerequisite of equivalent effect with existing anchor block, reduce volume further, thus solve make in the undesirable and concrete of size do not reach the problem of curing time, become the focus that industry is paid close attention to.
Model utility content
Main purpose of the present utility model is for the problems referred to above, a kind of confession is provided, anchor block that backwater fixed knot is connected as a single entity, realize anchor block volume significantly to reduce, reduce construction amount, improve efficiency of construction, make anchor block manufactured size and concrete curing phase in construction reach requirement, thus improve anchor block bulk strength, and then improve the firm and stable of heat supply pipeline.
The utility model solves the technological scheme that its technical problem adopts:
The anchor block that a kind of confession, backwater fixed knot are connected as a single entity, comprise two confessions be arranged in parallel, backwater fixed knot and built reinforced concrete knoll body wherein, described confession, backwater fixed knot be outside respectively with for, backwater annular slab and two ends cross the water supply connecting tube that stretches out described pier body front and back sides respectively and return connecting tube, it is characterized in that described confession, backwater fixed knot be fixed with one by structural steel connecting member.
Described structural steel connecting member is one section of H profile steel, and described confession, backwater connecting tube all pass perpendicularly through the web of described H profile steel, and is fixedly connected on described web respectively by confession, backwater annular slab.
Described structural steel connecting member is one section of channel-section steel, and described confession, backwater connecting tube all pass perpendicularly through the web of described channel-section steel, and is fixedly connected on described web respectively by confession, backwater annular slab.
Described structural steel connecting member is one section of box steel, and described confession, backwater connecting tube all pass perpendicularly through the 1st web and the 2nd web of described box steel, and is fixedly connected on respectively on the 1st web and the 2nd web by confession, backwater annular slab.
The beneficial effects of the utility model are: provide a kind of confession, the anchor block that backwater fixed knot is connected as a single entity, to supply owing to having set up structural steel connecting member, backwater fixed knot is connected as a single entity, thus two pipelines are converted into effect between pipeline to concrete agency part, by two unbalanced effects of pipeline, be converted into more balanced acting in conjunction, be delivered to anchor block again, now anchor block significantly weakens by the active force of pipeline, this active force is offset without the need to the soil body, therefore the size that anchor block needs significantly reduces, without the need to carrying out Structure Calculation acquisition according to active force, as long as adopt the coated confession be connected as a single entity by structural steel connecting member, going along with sb. to guard him size and can meet active force negative function required for backwater fixed knot.Thus efficiently solve pipeline and limit by site condition, can not make by normal size, and limit by the duration, concrete does not reach the problem of curing time.Make anchor block manufactured size and concrete curing phase in construction reach requirement, thus improve anchor block bulk strength and then improve the firm and stable of heat supply pipeline.
Accompanying drawing explanation
Fig. 1 is existing Direct-Buried Heating Pipeline anchor block overall structure schematic diagram;
Fig. 2 is the anchor block structural representation adopting H profile steel link;
Fig. 3 be connected as a single entity by H profile steel link in Fig. 2 confession, backwater fixed knot structural representation;
Fig. 4 is the anchor block structural representation adopting steel channel connector;
Fig. 5 is the anchor block structural representation adopting box steel fastener;
Fig. 6 is the H profile steel link scale diagrams selected.
In figure: A1-A4 reinforced concrete knoll body, B1 water supply fixed knot, B2 backwater fixed knot, C1H structural steel connecting member, C11 web, the C12 edge of a wing, C2 steel channel connector, C21 web, the C22 edge of a wing, C3 box steel fastener, C31a the 1st web, C31b the 2nd web, 11 water supply connecting tubes, 12 backwater connecting tubes, 21 water supply annular slabs, 22 backwater annular slabs.
Below in conjunction with drawings and Examples, the utility model is described in detail.
Embodiment
The anchor block that Fig. 2 illustrates a kind of confession, backwater fixed knot is connected as a single entity, comprise two confessions be arranged in parallel, backwater fixed knot B1, B2 and built reinforced concrete knoll body A2 wherein, described confession, backwater fixed knot B1, B2 be outside respectively with for, backwater annular slab 21,22 and two ends cross the water supply connecting tube 11 that stretches out described pier body A2 front and back sides respectively and return connecting tube 12, be of the present utility modelly characterised in that described confession, backwater fixed knot B1, B2 be fixed with one by structural steel connecting member.
Anchor block shown in Fig. 2 is characterized in that described structural steel connecting member C1 is one section of H profile steel, described confession, backwater connecting tube 21,22 all pass perpendicularly through the web C11 of described H profile steel, and are fixedly connected on described web C11 respectively by confession, backwater annular slab 21,22.In construction, supply, backwater annular slab 21,22 reclines web C11, and by being welded and fixed on it.Fig. 3 show be connected as a single entity by H profile steel link confession, backwater fixed knot structure.
Feature of the present utility model is also that described structural steel connecting member is one section of channel-section steel, and Fig. 4 shows the anchor block structure adopting steel channel connector; Wherein, confession, backwater fixed knot B1, B2 are fixed with one by steel channel connector C2.Described confession, backwater connecting tube 11,12 all pass perpendicularly through the web C21 of described channel-section steel, and are fixedly connected on described web respectively by confession, backwater annular slab 21,22.In construction, confession, backwater annular slab 21,22 are also the web C21 that reclines, and by being welded and fixed on it.
Feature of the present utility model is also that described structural steel connecting member is that one section of box steel C3, Fig. 5 show the anchor block structure adopting box steel fastener; Wherein, confession, backwater fixed knot B1, B2 are fixed with one by box steel fastener C3.Described confession, backwater connecting tube 11,12 all pass perpendicularly through the 1st web C31a and the 2nd web C31b of described box steel, and are fixedly connected on respectively on the 1st web and the 2nd web by confession, backwater annular slab 21,22.As shown in the figure, water supply connecting tube 11 welds on it by water supply annular slab 21 the 1st web C31a that reclines, and backwater connecting tube 12 is welded on it by backwater annular slab 22 the 2nd web C31b that reclines.
Working principle of the present utility model:
As shown in Fig. 2,4,5, heat supply pipeline generally has two pipelines, and one is water pipe, and one is return pipe, and water supply connecting tube 11 and the backwater connecting tube 12 of confession, backwater fixed knot B1, B2 are connected in water supply line and water return pipeline.Water supply line supply water temperature is high, in advance to anchor block generation effect during operation; Water return pipeline return water temperature is low, to the delayed generation effect of anchor block during operation.And because the water temperature height of two pipelines is different, pipeline is also different to the effect of anchor block.Utilize two pipelines to the asynchronous feature of anchor block effect, with structural steel connecting member, two fixed knots are connected as a single entity, are also connected as a single entity by water supply line, water return pipeline, like this, two pipelines are converted into effect between pipeline to concrete effect.This structure, by two unbalanced effects of pipeline, is converted into more balanced acting in conjunction, then is delivered to anchor block, now anchor block significantly weakens by the active force of pipeline, offset this effect without the need to the soil body, the effect of yet namely offsetting thrust is not the soil body, but is completed by two pipelines.Therefore the size that anchor block needs significantly reduces.As shown in the figure, for the anchor block size supplied, backwater fixed knot is connected as a single entity, without the need to carrying out Structure Calculation acquisition according to active force, adopt wrap up be connected as a single entity by structural steel connecting member confession, going along with sb. to guard him size and can meet active force negative function required for backwater fixed knot.Thus efficiently solve pipeline and limit by site condition, the problem that can not make by normal size; And limit by the duration, concrete does not reach the problem of curing time; And reduce construction amount, improve efficiency of construction, make anchor block manufactured size and concrete curing phase in construction reach requirement, and then improve anchor block bulk strength, improve the firm and stable of heat supply pipeline.
Embody rule
Because piping layout is different, pipe diameter size is different, also different to the thrust of anchor block.The specification of therefore required structural steel connecting member is also different.According to the thrust that fixed knot produces, we adopt " Code for design of steel structures " GB50017-2003 to calculate the size of required structural steel connecting member.
As previously mentioned, the thrust of pipeline is first produced by water supply line, owing to supplying, water return pipeline is joined together to form assembly parts by structural steel connecting member, structural steel connecting member is subject to return pipe center as fulcrum, by the effect of water pipe center thrust, become a flexural member, for guaranteeing that the structural steel connecting member adopted has the intensity of bearing water pipe thrust, ensure reliable and stable work simultaneously, according to the requirement of " Code for design of steel structures " GB50017-2003, first the calculating relevant with structural material is carried out according to the requirement of strength and stability two aspect, and then the Dimensions of deterministic type steel fastener.
For H profile steel, be described as follows (see Fig. 6):
Be DN600 for, return pipe, the engineering of water supply fixed knot thrust T=60 ton is example, arranges confession, return pipe centre distance d=1 rice, and connect steel and adopt H profile steel, material is Q345B.Now connect steel and bear moment of flexure: M=Td=60 ton rice,
According to the requirement of 4.1 joints of " Code for design of steel structures " GB50017-2003, the intensity of H profile steel need meet the requirement of resistance to flexure,
That is: M/ (γ * w)≤f.
In formula: f---the resistance to flexure design load of steel; This example is 295N/mm
2.
γ---plastic ratio of member section, this example is 1.2 by prescribed condition;
W---the net section modulus corresponding with moment of flexure direction is the value of this routine demand solution;
This routine each numerical value is substituted into:
W≥M/(γ*f)＝0.6*10
9/(1.2*295)＝1.69*10
6mm
3
We adopt the steel plate of thickness t=22mm as H profile steel edge of a wing C1, can according to W=tb
2/ 6 calculate flange width b=480mm.
Consider fixed knot detailing requiments, H profile steel depth of section h is required to be 900mm, web C11 thickness t
w=20mm, length needs 2200mm.
So far calculating H profile steel cross section specification is H900*480*20*22, i.e. high 900mm, flange width 480mm, web thickness t
w=20mm, edge of a wing thickness 22mm, see Fig. 6.
Calculate H profile steel cross section still need satisfied " Code for design of steel structures " GB50017-20034.3 save content, i.e. the requirement of stability.As follows:
This routine web ratio of height to thickness: h
0/ t
w=856/20=42.8
Meet 4.3.2.1 and save requirement
Fy=295N/mm in formula
2, be the resistance to flexure design load of steel.Edge of a wing free length b ' refer to centered by web its side edge of a wing length.
B '/t=(240-10)/22=10.45, meets 4.3.8 and saves requirement
According to " Code for design of concrete structures " GB50010-2010 requirement, need wrap up concrete in underground, each side of fixed knot of band H profile steel exceeds H profile steel surface 50mm as H profile steel protective layer.Now anchor block size is 2.4mX1.0mX0.8m=1.92m
3, (wide X height X is thick), and in prior art, the size of anchor block is 3mX3mX1m=9m
3(wide X height X is thick).Can find out that the anchor block size after improvement is only and improve 21% of front anchor block size, volume significantly reduces.Especially caliber and thrust larger, the anchor block superiority of this employing structural steel connecting member is more outstanding.
Above-described embodiment is under normal circumstances, anchor block bidirectional stress, and namely the thrust of pipeline is all born in anchor block both sides.Practical Project also has other situations, and as compensator is equipped with in anchor block side, at this moment anchor block is only by the thrust of opposite side pipeline, and at this moment we can change structural steel connecting member H profile steel as channel-section steel C2 into, as shown in Figure 4.
In addition, a kind of situation is also had to be that at this moment we just change box steel C3 into structural steel connecting member H profile steel, and as shown in Figure 5, the 1st, 2 web C31a, C31b of box steel respectively paste weldering annular slab 21,22 for the annular slab of, backwater two pipes not in a plane.
Adopt the calculating of channel-section steel and box steel the same with H profile steel, repeat no more herein.
The above is only preferred embodiment of the present utility model, not does any pro forma restriction to structure of the present utility model.Every above embodiment is done according to technical spirit of the present utility model any simple modification, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.
Claims (4)
1. the anchor block that is connected as a single entity of a confession, backwater fixed knot, comprise two confessions be arranged in parallel, backwater fixed knot and built reinforced concrete knoll body wherein, described confession, backwater fixed knot be outside respectively with for, backwater annular slab and two ends cross the water supply connecting tube that stretches out described pier body front and back sides respectively and return connecting tube, it is characterized in that described confession, backwater fixed knot be fixed with one by structural steel connecting member.
2. the anchor block that is connected as a single entity of a kind of confession according to claim 1, backwater fixed knot, it is characterized in that described structural steel connecting member is one section of H profile steel, described confession, backwater connecting tube all pass perpendicularly through the web of described H profile steel, and are fixedly connected on described web respectively by confession, backwater annular slab.
3. the anchor block that is connected as a single entity of a kind of confession according to claim 1, backwater fixed knot, it is characterized in that described structural steel connecting member is one section of channel-section steel, described confession, backwater connecting tube all pass perpendicularly through the web of described channel-section steel, and are fixedly connected on described web respectively by confession, backwater annular slab.
4. the anchor block that is connected as a single entity of a kind of confession according to claim 1, backwater fixed knot, it is characterized in that described structural steel connecting member is one section of box steel, described confession, backwater connecting tube all pass perpendicularly through the 1st web and the 2nd web of described box steel, and are fixedly connected on respectively on the 1st web and the 2nd web by confession, backwater annular slab.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520748952.1U CN204986035U (en) | 2015-09-24 | 2015-09-24 | Confession, fixed festival of return water be anchor block as an organic whole even |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520748952.1U CN204986035U (en) | 2015-09-24 | 2015-09-24 | Confession, fixed festival of return water be anchor block as an organic whole even |
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| Publication Number | Publication Date |
|---|---|
| CN204986035U true CN204986035U (en) | 2016-01-20 |
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ID=55120403
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|---|---|---|---|
| CN201520748952.1U Expired - Fee Related CN204986035U (en) | 2015-09-24 | 2015-09-24 | Confession, fixed festival of return water be anchor block as an organic whole even |
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| CN (1) | CN204986035U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107940105A (en) * | 2017-12-14 | 2018-04-20 | 天津市热电设计院有限公司 | Steel construction anchor block and channel steel computational methods of the channel steel connection for backwater fixed knot |
-
2015
- 2015-09-24 CN CN201520748952.1U patent/CN204986035U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107940105A (en) * | 2017-12-14 | 2018-04-20 | 天津市热电设计院有限公司 | Steel construction anchor block and channel steel computational methods of the channel steel connection for backwater fixed knot |
| CN107940105B (en) * | 2017-12-14 | 2024-01-09 | 天津市热电设计院有限公司 | Steel structure fixed pier with channel steel connected with water supply and return fixed joint and channel steel calculation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160120 Termination date: 20210924 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |