CN103234080A - Construction method for shared supporting and hanging frame for comprehensive arrangement of pipes - Google Patents
Construction method for shared supporting and hanging frame for comprehensive arrangement of pipes Download PDFInfo
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Abstract
The invention relates to a construction method for a shared supporting and hanging frame for comprehensive arrangement of pipes. The method comprises the steps of construction preparation, comprehensive arrangement of pipes to draw a profile map, selection of the model of the supporting and hanging frame through calculation, manufacturing and mounting of a sample supporting and hanging frame, overload test of the sample supporting and hanging frame, large-area mounting of the supporting and hanging frame, correction of the supporting and hanging frame and ending. According to the method, a plurality of supporting and hanging frames are changed into a comprehensive supporting and hanging frame, and compared with the traditional construction method, the method has the advantages of being simple and convenient to construct, capable of improving the working efficiency and the like.
Description
Technical field
The present invention relates to the construction and decoration field.
Background technique
Along with economic rapid development, the fast development of building industry, the function of building is constantly increasing.Because sticking to one's old way of doing things to lack, the Designer between each specialty links up, so cause the pipeline between each specialty intricate.If, by former figure construction, will cause pipeline to arrange in a jumble, so not only due to many consumption suspension and supports, having increased pipeline, to turn over the curved cost consumption that causes huge; And can cause the whole reduction of absolute altitude; More affected the aesthetic measure of engineering.
Summary of the invention
For the problems referred to above, the inventor has invented pipeline and has comprehensively arranged and share the suspension and support method of construction, comprise step: preparation of construction, the pipeline cross hatching of comprehensively arranging, carry out the suspension and support type selecting by calculating, and the model suspension and support is made and installed, model suspension and support overload test, the suspension and support large size is installed, and suspension and support is proofreaied and correct, ending.
The advantage that described method has is:
1, a plurality of suspension and supports change a comprehensive suspension and support into, with conventional construction method, compare easy construction, have improved working efficiency.
2, reduce suspension and support, avoided turning over curved, reduced the consumption of steel, with conventional construction method, relatively saved cost.
3, the pipeline of reasonably having arranged, effectively utilize space, with conventional construction method, relatively increased the furred ceiling absolute altitude.
4, each special pipeline, through comprehensively arranging, owing to share suspension and support, becomes clear bright and clear with conventional construction method comparison pipeline trend.
5, suspension and support when design, consider all stacks while being hung the thing maximum stress, with the reliable coefficient of conventional construction method, increase.
Pipeline is comprehensively arranged and is shared the suspension and support method of construction to be applicable to building functions many, and intricate and concentrated place ，Xiang hospital, complex building, the office building of arranging of each special pipelines, in market, corridor, hotel furred ceiling.
Pipeline is comprehensively arranged and shared the suspension and support method of construction is the pipeline for each professional crisscross recurrence, at first according to designing requirement, standard and on-the-spot actual conditions, comprehensively arranges, and draws pipeline and comprehensively arranges and share the suspension and support sectional drawing.Calculate again to be propped up and hang the thing maximum stress, by looking into the Steel Type of handbook choose reasonable suspension and support.Last blanking, making, installation share suspension and support.
The accompanying drawing explanation
Fig. 1 has shown a kind of construction technology process of the present invention.
Fig. 2 has shown a kind of pipeline comprehensive layout viewing of suspension and support that lingers.
Fig. 3 has shown a kind of corridor pipeline suspension and support figure that comprehensively arranges.
Light current crane span structure 1, fan coil unit water pipe 2, fan coil unit return pipe 3, fan coil unit condensate pipe 4, spray is registered one's residence and is managed 5, and new wind is registered one's residence and is managed 6, fresh air pipeline 7, spray supervisor 8.
Embodiment
Embodiment 1:
1, the pipeline cross hatching of comprehensively arranging
1), the key of comprehensive suspension and support construction technology is to be familiar with the characteristic of each special pipelines, pressure conduit, crane span structure move towards relatively unrestricted, as long as with due regard to save, and for high-line conduits such as draining, air conditioner condensate waters, the gradient is the factor that must consider, and should not be subject to other pipeline to affect its route, reasonable to guarantee the gradient, draining is unobstructed.
2), consider the height that arranges of insulation, thermal insulating pad.
3), air channel is the space hold maximum, can consider to establish the way that two layers of support are high the air channel frame on support, can also have like this space of pipeline below air channel.
4), the support of understanding each special pipelines arranges requirement, determines rational rack arrangement spacing, form, material and specifications and models.
5), consider the setting of the ceiling joist condition of construction, particularly main joist of decoration construction, clear and definite its position, height dimension.
6), the comp comprehensive layout of clear and definite support, determine the rack arrangement spacing, utilize computer to draw the pipeline layout planimetric map of arranging.
2, carry out the suspension and support type selecting by calculating
1), basis
" building plumbing system and heating engineering construction and acceptance specification " GB50242-2002
" the building engineering construction quality is unified the Acceptance criteria standard " GB50300-2001
" construction of building HV&AC engineering and acceptance specification " GB50243-2002
" building electric installation engineering construction and acceptance specification " GB50303-2002
" Construction of Steel Structure and acceptance specification " GB50205-2001
National building standard design atlas " interior conduit support and suspension bracket " 03S402
National building standard design atlas " suppot hanger of duct " 03K132
National building standard design atlas " cable testing bridge installation " 04D701-3
05 series engineering is built the accurate design in other shore atlas
" support of pipelines, suspension bracket " 05YS9
" interior lines engineering " 05YD5
" heating ventilation and air-conditioning engineering " 05N4
" industrial pipeline and equipment are installed and acceptance specification " GB50235-1998.
Former design drawing building body suspension and support preburied iron part mounting plane figure.
Existing locality laws and regulations
2) technical specifications of, calculating
(1) the suspension and support spacing of pipeline
Table 1 piping support and hanger spacing table
(2) weight determines
A equipment, air channel, cable testing bridge, various pipes deadweight
Conduct oneself with dignity with reference to equipment product certificate and the concrete data of examining report in equipment, air channel; The cable testing bridge deadweight is with reference to " the five metals handbook is calculated; All kinds of steel pipe deadweights, caliber DN15～DN150 is according to the common steel tube of standard GB/T/T3092-93 " low-pressure fluid carry use welded steel pipe ", and caliber DN200～DN500 is according to the minimum wall thickness (MINI W.) pipe re-computation of standard GB/T 8163-87 " conveying fluid seamless steel pipe) ".Plastic pipe deadweight, caliber 20mm-caliber 315mm is according to the pipe re-computation of standard GB/T/T10002.1-1996 " feedwater hard polyvinyl chloride pipe) ".
The B erection weight is calculated
Equipment calculates by the dynamic load load-bearing; Air channel is pressed from re-computation in air channel; Cable testing bridge is pressed adding up to of load-bearing cable weight and crane span structure deadweight and is calculated, and various pipes weight is pressed thermal insulation pipe and not two kinds of situations calculating of thermal insulation pipe.
The a insulation pipe: self weight of pipeline, the full packages water by the design pipe rack space is heavy, 60mm thickness thermal insulation layer is heavy and 12% the impost of closing of above three calculates.The thermal insulating material capacity calculates by rock wool 100kg/m3.
B is insulation pipe not: self weight of pipeline, the full packages water by design in pipe rack space heavily reaches 14% the impost of closing of above two and calculates.
The various spacing between pipes pipe of c weight average, for counting valve weight (bend pipe bracket Guan Chong comprises valve weight), while in pipe support, valve being arranged, should be taked strengthening measure at valve section.
3) method of, calculating
(1) 10kg that press of the heavy not enough 10kg of pipe support computer tube calculates, over 10kg to press the 10kg carryization whole) as whole as 23.7 changes be 30kg.
(2) design load
The A vertical load
Consider the factors such as manufacture, installation, adopt the proof load of pipe rack space to take advantage of 1.4 partial safety factor for load.
The B horizontal loading
Press 0.41 times of calculating of vertical load.
The C seismic load
Press seismic fortification intensity≤8 degree and calculate geological process.Do not consider wind load.
(3) suspension rod
Suspension rod is calculated by a member by axle center, and has considered certain corrosion allowance.Suspension rod net area An is calculated as follows, and meets GB GB/T17116.3.The maximum service load of suspension rod sees the following form.
In formula: (mm2) amassed in An-suspension rod net section
N-steeve tension design load (N)
F-steel strength design load (N/mm2)
The maximum service load table of table 2 suspension rod
(4) crossbeam
A crossbeam resistance to flexure is calculated
In formula: rx, ry-plastic ratio of member section
Mx, cross section that My-checks are around the x axle with around the moment of flexure (N-mm) of y axle
Wnx, cross section that Wny-checks are to the x axle with to the net section resistance moment (mm3) of y axle
F-steel strength design load (N/mm2)
The B-crossrail shear Strength Calculation
In formula: r-shearing strength (N/mm2)
V-calculates the shearing (N) of cross section along the web plane effect
S-calculates the area moment (mm3) of the above gross cross-sectional in shearing place to natural axis
Ix-gross cross-sectional moment of inertia (mm4)
Tw-web thickness (mm)
The shearing strength design load (N/mm2) of fv-steel
(5) connect and calculate
Be welded to connect and bolt connects the Related Formula by Code for design of steel structures, calculate required fusion length and connecting bolt size.
(6) be subject to the regulation of camber beam winding degree and compression member slenderness ratio
Be subject to the camber beam winding degree should not be greater than L/200 (span that L is flexural member is two times of length of overhanging to overhang and cantilever beam).
The permission slenderness ratio of compression member should not surpass 120.
4), selection requirements
(1) the design, as indicated without special, all calculates by weight design.Meeting under the condition of 2.1.3, can directly use the design.When shockproof the requirement arranged, should be at the rubber layer of liner 3mm on every side at pipe clamp position.
(2) pipeline elevator is comprised of suspension bracket root, suspension rod, cross-arm and pipe clamp four parts, can combine and select as required, it shall yet further be noted that the suspension rod diameter of suspension bracket root must be identical with the suspension rod diameter of each suspension bracket cross-arm simultaneously.
(3) the design only considers the strength and deformation of suspension and support itself.When caliber is larger, relevant suspension and support, for the impact of the structural strengths such as beam, plate, post, steelframe, must check through the structure discipline designer.
(4) standard piece that suspension and support is used should be specialized factory and produces, and the pipe support of self manufacture loses steel used should all adopt Q235～B steel, and during making, boring must not be used gas cutting, and welding rod all adopts E4300～No. E4313.
3, the model suspension and support is made, is installed
1) rust cleaning of steel and anticorrosion: steel are marched into the arena after managing examination, adopt electric angle grinder to be eliminated rust to steel; After having eliminated rust, adopt air compressor to steel spray paint carry out anticorrosion.
2) processing and fabricating of the root of comprehensive suspension and support: the root of comprehensive suspension and support adopts [10 channel-section steel processing and fabricatings, making method is as follows: adopt oxygen, acetylene to be blocked channel-section steel, adopt oxygen, the acetylene side opening in the channel-section steel section, openings of sizes is 50mm * 13mm again; Finally, adopt electric angle grinder to carry out polishing treatment to manufactured root.
3) welding of comprehensive suspension and support root: after the root completion of processing, itself and original reserved suspension and support preburied iron part are welded, they are connected firmly.Suspension and support top should be concordant with embedded part, must not exceed or lower than embedded part, throat depth must not be less than 4mm, the overall length full weld.
4) comprehensive suspension and support root is anticorrosion: after root weld completes, after welding slag is cleaned out, adopt red lead anti-corrosive paint to carry out preservative treatment to it.
5) processing and fabricating of hanging beam: after the root weld of comprehensive suspension and support completes, according to the design and construction drawing of cable testing bridge, airduct, water pipe, in conjunction with the job site actual conditions; Adopt abrasive wheel cutting machine and bench drill, the angle steel of ∠ 40 * 4, ∠ 50 * 5, ∠ 63 * 6 is carried out to processing and fabricating.Prop up, hang, carriage will unify processing, form is consistent.Hang, the angle steel of carriage, the pipe clamp eye of channel-section steel, adopt without exception machine drilling, strictly forbid the electrogas welding punching.
6) installation of suspension rod: by hanger erection in the bar hole of root.
7) installation of hanging beam: by the hanging beam of various different purposes, according to the requirement of design proposal, be arranged on different absolute altitudes.The angle steel of prop up, hang, carriage is used, channel-section steel opening are towards should be consistent.
4, model suspension and support overload test
Use load-bearing material to hang on suspension and support, 2.2 times of the sum total that load is equipment, air channel, cable testing bridge, various pipes and suspension and support deadweight and working load, the suspension time is 24 hours.Test result answer embedded part firmly, that the suspension bracket root weld is tight, suspension and support is not deformed into is qualified.
5, suspension and support is proofreaied and correct
After the comprehensive suspension and support installation in each zone, adopt level instrument and theodolite to suspension rod and the hanging beam of comprehensive suspension and support aligned, leveling.
Material and equipment requirement:
1, material requirements
The material that this comprehensive suspension and support adopts has channel-section steel, angle bar, suspension rod, nut, circular washer, spring washer, setscrew etc., must pass through strict check during materials arrival, and leave detection record.Also must guarantee that material has complete certificate of quality file.The keeping of material will be established special storehouse, special messenger's keeping.
2, equipment requirement
Institute adopts to such an extent that equipment pass through and be up to the standards and can use in engineering, and the non-conforming equipment material is forbidden using in making comprehensive suspension and support.
Table 3 machinery table
| Sequence number | Title | Unit | Quantity | Remarks |
| 1 | Electric welding machine | Platform | 2 | ? |
| 2 | Cutting machine | Platform | 2 | ? |
| 3 | Electric hammer | ? | 5 | ? |
| 4 | Bench drill | Platform | 2 | ? |
| 5 | Tape measure | Individual | 1 | ? |
| 6 | Spanner | Individual | 1 | ? |
| 7 | Spirit level | Individual | 1 | ? |
| 8 | Angle square | Individual | 1 | ? |
Quality control
1, must weld and carry out detailed inspection and guarantee even weld suspension and support, without phenomenons such as rosin joint sand holes;
2, suspension and support is obtained to size and carefully measure, guarantee that size is accurate;
3, suspension and support is obtained to the handy angle square in turning and measure, to guarantee suspension and support, accuracy is installed to obtain;
4, mounted suspension and support is measured to test, guarantee that suspension and support obtains bearing power and soundness.
Safety measure
To correctly implement the policy of " safety is in order to produce; produce must safety " to reach " and put prevention first " in construction, in construction, except the rules and my corporate security managerial system that must observe the relevant safety in production of country, the characteristics that also should install for suspension and support are formulated corresponding safety management system:
1 electrician, welder must take appointment with certificate, and should carry out examination on the spot before entering scene, and qualified rear just giving enters on-the-spot practical operation.
2 expert engineers tackle the workman and carry out that safety technique is written tells somebody what one's real intentions are, and every day, pre-shift meeting emphasized to sum up security situation the previous day, pointed out the contingent safety problem of working the same day, and full-time safety supervisor is responsible for on-the-spot follow-up investigations, eliminates safe hidden trouble in time.
It is all ascend operation basically that 3 suspension and supports are installed, and while on distance ground, surpassing 4 meters, must set up operating platform with portal frame, and platform must be sturdy and durable, after safety supervisor's acceptance(check), can use.The platform operating personnel must wear the protection articles for use such as safety strip, safety helmet in addition.
Environmental practice
1 suspension and support is unified to be made, unified carry out antirust, rinse paint and process, avoid metope, ground to Civil Specialities to cause secondary pollution.
2 in suspension and support fabrication and installation process, is simple assembling process, does not have waste material to produce.
The used material of 3 finished product protection, after the Civil Specialities wall construction, effectively reclaim in time, and it is appropriate that construction rubbish is cleared up processing in time, guarantees environmental hygiene.
4 strengthen construction and installation workman's environmental protection education, improve workman's environmental consciousness.
Performance analysis
1 comprehensive suspension and support is compared with conventional construction method, construction install convenience, shortens project progress, can improve the utilization ratio in space, and attractive in appearance clear and definite after installing, orderliness is clear.
2 by the comparative analysis of relevant technologies economic indicator, and comprehensive suspension and support can be cost-saving, improves engineering efficiency, reaches the energy-conservation purpose of engineering.Through incomplete pairwise comparison, comprehensive suspension and support is compared common suspension and support saving steel and is not less than 23%, removes planning and technical management expense, cost-saving 19%.
If 3 certain engineering site are established comprehensive support 792 covers altogether, average every cover weighs 28.5 kilograms.As need be established angle steel or channel-section steel or round steel suspension and support 6336 covers according to common construction.Comprehensive suspension and support adds up to materials: 792 * 28.5 kilograms=22572 kilograms, covers; Usually construction bracket, by average 5 kilograms of calculating, adds up to materials :=31680 kilograms, 5 kilograms/cover * 6336 cover.Save altogether the 31680-22572=9108 kilogram.Calculate fabrication and installation expense: 9108kg * 1327 yuan/100kg (the quota base price is installed and sees table " Discourse of Enterprise's ration (installation of indoor comprehensive suspension and support) ")=120863 yuan with " the comprehensive base price of Inner Mongolia Autonomous Region installing engineering " (2003 editions); The steel valency is calculated as 5300 yuan/tons * 9.108 tons=48272 yuan by market price at that time, amounts to and saves as 120863+48272=169135 unit.
Claims (1)
1. a pipeline is comprehensively arranged and is shared the suspension and support method of construction, it is characterized in that comprising step: preparation of construction, the pipeline cross hatching of comprehensively arranging, carry out the suspension and support type selecting by calculating, the model suspension and support is made and is installed, model suspension and support overload test, and the suspension and support large size is installed, suspension and support is proofreaied and correct, ending.
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| CN2013101653119A CN103234080A (en) | 2013-05-08 | 2013-05-08 | Construction method for shared supporting and hanging frame for comprehensive arrangement of pipes |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104141824A (en) * | 2014-07-04 | 2014-11-12 | 江苏海纬集团有限公司 | Installation technology of spring supports and hangers |
| CN106351362A (en) * | 2016-08-30 | 2017-01-25 | 江苏嘉洋华联建筑装饰股份有限公司 | Ultra-high and lightweight steel keel paper gypsum board partition wall and construction method thereof |
| CN106907525A (en) * | 2017-04-20 | 2017-06-30 | 中天西北建设投资集团有限公司 | A kind of para-seismic support installation engineering method |
| CN111428400A (en) * | 2020-03-09 | 2020-07-17 | 北京住总第一开发建设有限公司 | Design method of electromechanical comprehensive support and hanger based on BIM technology |
| CN112081237A (en) * | 2020-09-21 | 2020-12-15 | 重庆建工第一市政工程有限责任公司 | Construction method of composite support and hanger of comprehensive overhead pipe gallery based on BIM technology |
| CN114057094A (en) * | 2021-12-03 | 2022-02-18 | 中建八局第二建设有限公司 | C-shaped steel combined support and hanger and construction method thereof |
| CN114251516A (en) * | 2021-12-21 | 2022-03-29 | 中铁三局集团建筑安装工程有限公司 | Comprehensive support and hanger system and construction method thereof |
| CN114962785A (en) * | 2022-02-07 | 2022-08-30 | 北京城建集团有限责任公司 | Construction method of anti-seismic support |
| CN116127673A (en) * | 2023-04-18 | 2023-05-16 | 中建安装集团有限公司 | Intelligent support and hanger analysis management system and method based on big data |
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