CN101696566A - Construction method of mutilevel overpass scaffold - Google Patents
Construction method of mutilevel overpass scaffold Download PDFInfo
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- CN101696566A CN101696566A CN200910190917A CN200910190917A CN101696566A CN 101696566 A CN101696566 A CN 101696566A CN 200910190917 A CN200910190917 A CN 200910190917A CN 200910190917 A CN200910190917 A CN 200910190917A CN 101696566 A CN101696566 A CN 101696566A
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Abstract
The invention discloses a construction method of mutilevel overpass scaffold, comprising the following steps: building a bottom layer scaffold provided with steel frame doorways for vehicles and pedestrians to pass, checking and installing a deformation monitoring system, and carrying out a load pressure test on the bottom layer scaffold; building at least two layers of bridge scaffolds on the bottom layer scaffold, building box girder doorways for bridge construction on the bridge scaffold, installing the deformation monitoring system on the box girder doorway and carrying out comprehensive load test. The bottom layer scaffold is provided with the steel frame doorway so as to meet the passing demand of big traffic flow; each layer of the middle part can be provided with the mutually crossed box girder doorways in the same plane and can be provided with the mutually crossed box girder doorways in the vertical direction, therefore optionally carrying out construction according to requirements; the whole scaffold only needs to be built and removed once, not only shortening the building and removing time of the scaffold but also reducing the risk of building and removing the scaffold; and each level of bridge can be constructed at the same time, and therefore, the construction period is short and the construction cost is low.
Description
Technical field
The present invention relates to a kind of overpass bridge scaffold job practices, relate in particular to the construction method of mutilevel overpass scaffold that a kind of adaptation is constructed simultaneously.
Background technology
In the prior art, bottom layer scaffold is at first built in most employing when building mutilevel overpass, on the basis of bottom layer scaffold, build first floor bridge scaffold, the shop template, the cloth reinforcing bar, cast mixes earth, behind the first floor bridge moulding by casting, dismounting first floor bridge scaffold scaffolds erecting from ground again up to the position of second layer bridge height, and second layer scaffold is put up shop, back template, the cloth reinforcing bar, cast mixes earth, and so forth, builds the height of last layer bridge after one deck bridge is poured into a mould again again.Therefore, this overpass bridge scaffold is built construction and is applicable to by seat by joining successively the mode of construction separately, mostly design and constructor think that this scaffold builds form of construction work and belong to and have ripe construction technology now, in construction, compare safety, difficulty of construction is little, but also there is following deficiency in the overpass bridge scaffold job practices of prior art: one, bridge reinforcement concrete pouring mode is single, can only be from bottom upwards cast gradually, can't realize that levels pours into a mould simultaneously, so long construction period; Two, behind one deck bridge moulding by casting, need the dismounting scaffold, build again to the last layer bridge height, like this, bottom layer scaffold need repeat installation and removal, and it is long that scaffold is built the time, the cost of labor height; Three, this scaffold job practices of setting up causes traffic jam easily on the traffic road of traffic congestion, when setting up vehicle and walkway need be set separately; Four, level gauge is adopted in the scaffold monitoring, carries out at times, can not round-the-clock, full-time journey monitor at any time, can't guarantee that whole construction course all is in slave mode; Five, because scaffold is repeatedly taken and torn open, and in the construction of traffic major trunk roads, traffick, personnel are numerous, traffic hidden danger is big.
Therefore, adopt the scaffold of aforesaid way to build construction, should consider the passing road of pedestrian and vehicle, and the construction period is long, the construction cost height, form of construction work is single, and is dumb, and the monitoring of scaffold is undertaken by experience.
Summary of the invention
At weak point of the prior art, the invention provides a kind of traffic major trunk roads that are specially adapted to, vehicle flowrate is big, can not block traffic, need completion fast, and reduce the construction method of mutilevel overpass scaffold of traffic pressure as far as possible, adopt not only construction period weak point of this job practices, construction cost is low, and the mixed earth of cast is flexible.
Construction method of mutilevel overpass scaffold provided by the invention comprises the steps:
A, set up bottom layer scaffold, bottom layer scaffold is erected with the steelframe door opening for vehicles and pedestrians, scaffold set up quality inspection, DEFORMATION MONITORING SYSTEM is installed on bottom layer scaffold then, bottom layer scaffold is carried out the cargo pressure testing, the distortion of scaffold is monitored in the overpass bridge whole construction course;
B, on bottom layer scaffold, set up two-layer at least bridge scaffold, the bridge scaffold building has for the used case Liangmen hole of bridge construction, after whole bridge scaffold building is intact, whole scaffold building quality is checked, on case Liangmen hole, DEFORMATION MONITORING SYSTEM is installed, and carry out comprehensive cargo precompressed and test, in order to check setting up quality and the calculating before setting up being verified of scaffold, whether the distortion of checking scaffold and shaped steel within code requirement, monitors the distortion of scaffold in the overpass bridge whole construction course.
Further, described DEFORMATION MONITORING SYSTEM comprises deformation-sensor, Acquisition Instrument and monitoring center's computer, deformation-sensor is arranged on the crossbeam of steelframe door opening, and its signal output part is connected with Acquisition Instrument, and the data output end of Acquisition Instrument is connected with the monitoring center computer;
Further, described steelframe door opening and case Liangmen hole are mainly formed by the i-beam structure that both sides bowl fastening type scaffold and top are provided with, i-beam structure comprises main steel I-beam, bottom i iron and top i iron, described bottom i iron is two-layer, be fixedly installed on respectively in the bowl fastening type scaffold pop-up of both sides, described main steel I-beam is to be fixedly installed on the steel I-beam of bottom with the perpendicular mode of vehicle pass-through direction, the top i iron is laid on the main i iron with certain interval, and the top i iron is fixedlyed connected with the bowl fastening type scaffold subiculum on it;
Further, described top i iron and the bowl fastening type scaffold subiculum on it are fixedly connected by welding, and the bottom i iron is fixedly connected by bowl fastening type scaffold pop-up welding;
Further, described scaffold is formed by connecting by the bowl fastener by steel pipe.
Beneficial effect of the present invention is: construction method of mutilevel overpass scaffold of the present invention adopts bottom to be provided with the steelframe door opening that supplies vehicles and pedestrians, each layer of middle part is provided with for the used case Liangmen hole of overpass bridge bridge construction, makes this job practices have following advantage:
1, this scaffold bottom is provided with the steelframe door opening for vehicles and pedestrians, is applicable to the traffic major trunk roads, and vehicle flowrate is big, can not block traffic, needs completion fast, and reduces the construction requirement of traffic pressure as far as possible.
2, each layer of middle part is provided with for the used case Liangmen hole of bridge construction, the quantity in case Liangmen hole can be determined according to the quantity that is constructed a bridge, both cross one another case Liangmen hole can be set in same horizontal plane, interlaced case Liangmen hole also can be set in vertical direction, as required can be to the construction in advance of certain one deck bridge, also can construct simultaneously, so the bridge construction organizational form is flexible to all bridges.
3, on the crossbeam of steelframe door opening, deformation-sensor is set, by steel I-beam the deflection under stressing conditions of deformation-sensor detection as crossbeam, and the deflection data are imported central computer by Acquisition Instrument, the distortion situation that shows steel I-beam by central computer, if deflection surpasses the deformation values of the regulation of steel I-beam, central computer sends danger alarm signal, the monitoring means science, and omnidistance monitoring is safe and reliable.
4, the scaffold in the whole construction scope only need be taken to tear open once and get final product, and need not to repeat to build and dismantle, and has both shortened scaffold and has built the time, has reduced again and has taken the danger of tearing scaffold open; And each layer bridge can construct simultaneously, so short construction period, and construction cost is low.
Description of drawings
Below in conjunction with the drawings and specific embodiments the present invention is done explanation in further detail.
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the partial plan view in steelframe door opening or case Liangmen hole among Fig. 1;
Fig. 3 is that the A of Fig. 2 is to view.
The specific embodiment
Fig. 1 is a structural representation of the present invention, Fig. 2 is the partial plan view in steelframe door opening or case Liangmen hole among Fig. 1, Fig. 3 is that the A of Fig. 2 is to view, as shown in the figure: construction method of mutilevel overpass scaffold comprises the steps: a, the bridge post that utilizes construction molding is as the core tube, and adopt bowl fastening type scaffold and shaped steel outwards to disperse as the center and set up bottom layer scaffold, bottom layer scaffold is erected with the steelframe door opening 2 for vehicles and pedestrians, bottom layer scaffold is set up quality carry out conscientious scrutiny, DEFORMATION MONITORING SYSTEM is installed on bottom layer scaffold then, bottom layer scaffold is carried out the cargo pressure testing, the distortion of scaffold is monitored in the overpass bridge whole construction course; B, on bottom layer scaffold, set up two-layer at least bridge scaffold, the bridge scaffold building has for the used case Liangmen hole 3 of bridge construction, after whole bridge scaffold building is intact, after whole scaffold building quality carried out conscientious scrutiny, on case Liangmen hole, DEFORMATION MONITORING SYSTEM is installed, carry out comprehensive scaffold cargo precompressed test, in order to check setting up quality and the calculating before setting up being verified of scaffold, whether the distortion of checking scaffold and shaped steel within code requirement, monitors the distortion of the scaffold in the overpass bridge whole construction course.
Present embodiment is a two-level junction bridge scaffold, and bottom is provided with three steelframe door openings 2 for vehicles and pedestrians, to make things convenient for vehicles and pedestrians; First floor bridge and second layer bridge are bridge staggered on the vertical direction, second layer bridge scaffold is provided with for the used case Liangmen hole 3 of first floor bridge construction, and is main so that spread template, cloth reinforcing bar, watering coagulation figure, simultaneously also is to have built the hole that vehicle and pedestrian pass through on the first floor bridge.
Steelframe door opening 2 and case Liangmen hole 3 are mainly formed by the i-beam structure 5 that both sides bowl fastening type scaffold 4 and top are provided with, i-beam structure 5 comprises main steel I-beam 6, bottom i iron 7 and top i iron 8, bottom i iron 7 is two-layer, be fixedly installed on respectively on the both sides bowl fastening type scaffold 4, main steel I-beam 6 is to be fixedly installed on the i iron 7 of bottom with the perpendicular mode of vehicle pass-through direction, top i iron 8 is laid on the main steel I-beam 6 with certain interval, top i iron and the bowl fastening type scaffold subiculum on it are fixedly connected by welding, and the bottom i iron is fixedly connected by bowl fastening type scaffold pop-up welding.
DEFORMATION MONITORING SYSTEM comprises deformation-sensor, Acquisition Instrument and monitoring center's computer, and deformation-sensor is arranged on the main steel I-beam as crossbeam, and its signal output part is connected with Acquisition Instrument, and the data output end of Acquisition Instrument is connected with the monitoring center computer.The distortion monitoring of scaffold and i iron is changed into by the artificial level gauge that uses of tradition adopts DEFORMATION MONITORING SYSTEM to lead monitoring, the artificial level gauge that uses carries out auxiliary monitoring, inspection to DEFORMATION MONITORING SYSTEM, is changed into the detection of electronization, digitlization, round-the-clock, full-time journey by traditional monitoring at times.
After scaffold has been built, need carry out the cargo pressure testing, cargo is 1.2 times and 1.4 times of mobile load of dead load, to detect the supporting capacity of whole scaffold, and the distortion situation of main steel I-beam on the observation monitoring center computer, guarantee stability, the security performance of whole scaffolding structure.Welding is all adopted at the position that is connected with whole i iron, to guarantee firm connection.
Scaffold is formed by connecting by the bowl fastener by steel pipe.Connect steel pipe with the bowl fastener, not only installation or removal are convenient, and can improve speed of application.
Explanation is at last, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technical scheme of the present invention, the aim and the scope that do not break away from the technical program, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (5)
1. a construction method of mutilevel overpass scaffold is characterized in that: comprise the steps:
A, set up bottom layer scaffold, bottom layer scaffold is erected with the steelframe door opening for vehicles and pedestrians, to scaffold set up quality inspection, DEFORMATION MONITORING SYSTEM is installed on bottom layer scaffold then, bottom layer scaffold is carried out the cargo pressure testing;
B, on bottom layer scaffold, set up two-layer at least bridge scaffold, the bridge scaffold building has for the used case Liangmen hole of bridge construction, after whole bridge scaffold building is intact, whole scaffold building quality is checked, on case Liangmen hole, DEFORMATION MONITORING SYSTEM is installed, and carry out comprehensive cargo precompressed test, in order to check setting up quality and the calculating before setting up being verified of scaffold, whether the distortion of checking scaffold and shaped steel is within code requirement.
2. construction method of mutilevel overpass scaffold according to claim 1, it is characterized in that: described DEFORMATION MONITORING SYSTEM comprises deformation-sensor, Acquisition Instrument and monitoring center's computer, deformation-sensor is arranged on the crossbeam of steelframe door opening, its signal output part is connected with Acquisition Instrument, and the data output end of Acquisition Instrument is connected with the monitoring center computer.
3. construction method of mutilevel overpass scaffold according to claim 1 and 2, it is characterized in that: described steelframe door opening and case Liangmen hole are mainly formed by the i-beam structure that both sides bowl fastening type scaffold and top are provided with, i-beam structure comprises main steel I-beam, bottom i iron and top i iron, described bottom i iron is two-layer, be fixedly installed on respectively in the pop-up of both sides bowl fastening type scaffold, described main steel I-beam is to be fixedly installed on the steel I-beam of bottom with the perpendicular mode of vehicle pass-through direction, the top i iron is laid on the main i iron with certain interval, and the top i iron is fixedlyed connected with the bowl fastening type scaffold subiculum on it.
4. construction method of mutilevel overpass scaffold according to claim 3 is characterized in that: described top i iron and the bowl fastening type scaffold subiculum on it are fixedly connected by welding, and the bottom i iron is fixedly connected by bowl fastening type scaffold pop-up welding.
5. construction method of mutilevel overpass scaffold according to claim 4 is characterized in that: described scaffold is formed by connecting by the bowl fastener by steel pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101909171A CN101696566B (en) | 2009-09-21 | 2009-09-21 | Construction method of mutilevel overpass scaffold |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009101909171A CN101696566B (en) | 2009-09-21 | 2009-09-21 | Construction method of mutilevel overpass scaffold |
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| CN101696566A true CN101696566A (en) | 2010-04-21 |
| CN101696566B CN101696566B (en) | 2011-01-05 |
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| CN2009101909171A Expired - Fee Related CN101696566B (en) | 2009-09-21 | 2009-09-21 | Construction method of mutilevel overpass scaffold |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101906820A (en) * | 2010-07-29 | 2010-12-08 | 中建三局建设工程股份有限公司 | System capable of constructing in vertical structure and horizontal structure simultaneously in core tube |
| CN103031810A (en) * | 2011-09-29 | 2013-04-10 | 李跃军 | Prestress hole channel grouting quality control method based on double parameters of flow and density |
| CN108394848A (en) * | 2018-03-22 | 2018-08-14 | 中国十七冶集团有限公司 | A kind of simple kerbstone handling device and application method |
| CN110878525A (en) * | 2019-11-06 | 2020-03-13 | 武船重型工程股份有限公司 | Double-layer steel box girder bridge installation method and combined support for installation |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1020645C (en) * | 1989-09-12 | 1993-05-12 | 上海市第五建筑工程公司 | Integral elevating system for out-mould scaffold of super-high buildings |
| CN2128653Y (en) * | 1992-07-24 | 1993-03-24 | 同济大学 | Multi-function mutual rise and fall framing scaffold |
| JP2006307506A (en) * | 2005-04-27 | 2006-11-09 | Gifu Kogyo Co Ltd | Scaffolding |
| CN201176726Y (en) * | 2008-04-16 | 2009-01-07 | 中冶天工建设有限公司 | Deviated gravity center thick wall super large reinforced concrete structures formwork sectional steel support system |
-
2009
- 2009-09-21 CN CN2009101909171A patent/CN101696566B/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101906820A (en) * | 2010-07-29 | 2010-12-08 | 中建三局建设工程股份有限公司 | System capable of constructing in vertical structure and horizontal structure simultaneously in core tube |
| CN101906820B (en) * | 2010-07-29 | 2013-12-04 | 中建三局建设工程股份有限公司 | System capable of constructing in vertical structure and horizontal structure simultaneously in core tube |
| CN103031810A (en) * | 2011-09-29 | 2013-04-10 | 李跃军 | Prestress hole channel grouting quality control method based on double parameters of flow and density |
| CN108394848A (en) * | 2018-03-22 | 2018-08-14 | 中国十七冶集团有限公司 | A kind of simple kerbstone handling device and application method |
| CN110878525A (en) * | 2019-11-06 | 2020-03-13 | 武船重型工程股份有限公司 | Double-layer steel box girder bridge installation method and combined support for installation |
| CN110878525B (en) * | 2019-11-06 | 2022-04-05 | 武船重型工程股份有限公司 | Double-layer steel box girder bridge installation method and combined support for installation |
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| CN101696566B (en) | 2011-01-05 |
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Granted publication date: 20110105 Termination date: 20130921 |