CN1256344A - Construction method for laying main beam and main beam centering adjusting device - Google Patents
Construction method for laying main beam and main beam centering adjusting device Download PDFInfo
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- CN1256344A CN1256344A CN 98117065 CN98117065A CN1256344A CN 1256344 A CN1256344 A CN 1256344A CN 98117065 CN98117065 CN 98117065 CN 98117065 A CN98117065 A CN 98117065A CN 1256344 A CN1256344 A CN 1256344A
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- 238000009434 installation Methods 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims description 22
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- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 238000003032 molecular docking Methods 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 abstract description 54
- 239000010959 steel Substances 0.000 abstract description 54
- 239000000725 suspension Substances 0.000 description 10
- 238000005096 rolling process Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 2
- 230000003100 immobilizing effect Effects 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
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- 210000001015 abdomen Anatomy 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 239000007799 cork Substances 0.000 description 1
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Abstract
In the construction of the present invention, one main girder to hoist object is lifted to between a pair of steel props and connected to the tops of the steel props. One hydraulic jack is installed to the side top of the girder. When the distance between the prope is smaller than the girder installing length, the hydraulic jack pushes one prop out and on the contrary the hydraulic jack draws the props near each other. In this way, the distance betwen two props is detected and changed by the hydraulic jack to match the length of the girder for installation.
Description
The present invention is about a kind of job practices of laying girder and girder to middle regulator, especially about being used for the large-sized boiler of steam power plant or similar facilities is raised and constructs and support on the top of the structure of being holded up by a usefulness steel frame at the same time and a kind of job practices of laying girder and girder to middle regulator of being adopted when suspending in midair when one.
Adopted a kind of suspention pattern that is used for thermal power plant boiler or similar facilities up to now, but the installation work of most boiler is to carry out in a place that raises, this place is again quite dangerous and inefficiency.Usually, at first construct a building and hold boiler with a steel frame, then a hanger frame that is used for the supporting pot stove weight is connected to the top of this steel frame, boiler component can be connected on the hanger frame like this, hanger frame is formed a frame foundation with girder, central sill and is used to connect girder etc., and constructs a shelf spare that is referred to as the Chinese wistaria screen work on this frame foundation.Many suspension rods are fixed on this Chinese wistaria screen work, and are connected with boiler component and suspend this boiler component in midair.In this boiler construction, because boiler component is assembled one by one downwards from one tens meters height, so that boiler erection is become from stretching down with respect to the hanger frame that is positioned at the top, therefore all being required to be installation work in each job step provides a safety net or a scaffold, causes the extreme low of efficient thus.
From above-mentioned consideration, provided a kind of method, the girder that this method will support boiler is connected to the bottom of a pillar, this pillar bottom will become the top of steel frame pillar again, the erection work of boiler structure is carried out then, girder is upwards promoted along boiler structure according to the progress of erection work simultaneously, avoids like this in the aerial operation of height.
Yet, do in the method for improving of guiding device at employing one steel frame pillar, a boiler structure of more than 2000 ton is by being moved up along steel strut owing to weigh, and the shortcoming that is produced is: up to this steel frame pillar of 100 meters nearly owing to comprise that the load that is raised material of girder can be towards the work of lifting lopsidedness.Particularly, promote in the structure of girder one, wherein an interim beam is given prominence to from a top that is used to promote girder; And many bars that connect into a cable wire shape are suspended in midair from a boiler jack that is installed on this interim beam; And girder is promoted by phased manner by the operation of this jack, acts on a very big moment of flexure on this pillar and causes the slope inwardly phenomenon of about 30mm of post top portion.Usually when building pillar, the pillar that this steel frame is formed saves land with a tubercle device one joint one and builds up, and this pillar can be along with applying by the mode of the mode of act load or construction towards outer incline.The inclination of above-mentioned pillar means: when wanting to lay in the span of into propping up intercolumniation, can not obtain suitable butt joint to girder on riding position.Therefore, require span with girder length and pillar to be designed to lay on the position of girder adaptive mutually in (post top portion).
In addition, when pillar has about 100 meters height, must consider the distortion that can produce on the post top portion.When a kind of like this distortion takes place, can be connected suitably when it arrives setting height(from bottom) with the panel of girder combination once being used for, so, also require to improve the situation of laying operational difficulties by this distortion produced.
The present invention is about a kind of job practices of laying a girder and a girder to middle regulator, an object of the present invention is to provide following mode to provide step for laying girder smoothly: wherein can save preset work, and also can carry out the adjustment that centering is adjusted and is used for space between pier construction distortion and pillar and girder when promoting girder.
For realizing this purpose, when the girder that hangs an object was lifted between a pair of steel frame and be fixed on the pier construction top, a hydraulic jack ejection device reversibly was contained on the side end of girder.And when intercolumniation when being shorter than girder length, then carry out sliding operation, under reverse situation, by the hydraulic jack operation that furthers to pillar by this hydraulic jack.The direction that hydraulic jack is mounted is designed to can be according to being moved the value that detects apart from length of laying between pair of posts, and the distance between pier construction matches with girder length, girder can be placed on the pier construction thus.
Can obtain following effect according to the present invention.Promptly; One object need risen in the work of laying girder in a place of raising, it need not pre-adjustment work, and when girder is raised, can carry out centering and adjust and be used to adjust the distortion of pier construction and the space between pillar and girder, girder easily can be placed on the pillar like this.
Fig. 1 (A) and Fig. 1 (B) are respectively an elevation and the side elevation view that expression one girder is laid working stage;
The elevation that Fig. 2 is suspended for the expression girder;
Fig. 3 is just near a fragmentary, perspective view of the girder of a riding position;
Fig. 4 is the elevation of Fig. 3;
Fig. 5 is an elevation of the girder of arrival riding position;
The side elevation view of Fig. 6 for explaining that the girder distortion is adjusted;
Fig. 7 is the top view of Fig. 6;
Fig. 8 draws in an elevation of operation to pillar for expression;
Fig. 9 is the top view of Fig. 8.
Illustrate that below a kind of girder and girder laid according to the present invention is to the construction party of middle regulator One specially for carrying out example of method.
A kind of construction method of laying girder according to the present invention is so a kind of construction party of laying girder Method, wherein: the girder that suspends an object in midair is promoted between the pair of posts structure and is fixed to pillar to be tied The top of structure. Especially, implement said method can by promote and mobile girder prevent corbeling to Interior inclination is provided at by one simultaneously at it that one on girder compresses and slide device is placed in girder court In the position movement process on the corbeling the interstructural distance of pair of posts is advanced and amplified, this Sample is placed to girder in the corbeling.
In addition, the present invention also can form as follows: a kind of construction method of laying girder, wherein will suspend in midair The girder of one object be promoted between the pair of posts structure and with each top of corbeling to connecting, should Method comprises the steps: with pull unit corbeling to be pulled to girder in the girder riding position, adjusts The interstructural distance of pair of posts matches with girder length, in order to girder is placed on the corbeling.
In addition, the present invention also can form as follows: a kind of job practices of laying girder, the girder that wherein will suspend an object in midair be promoted between the pair of posts structure and with each top of pier construction to connecting, this method comprises the steps: that a side end that a hydraulic jack ejection device is installed in girder reverses the direction that hydraulic jack is mounted; When the interstructural distance of pair of posts be shorter than girder lay length the time, thereby according to coming mobile hydraulic jack Unit Installation direction to come the repulsion pillar and girder is slided upper supporting column with the hydraulic jack ejection device to the interstructural distance detection value of laying of pair of posts, and when the interstructural distance of pair of posts greater than girder lay length the time, with the hydraulic jack ejection device pier construction is pulled to girder; Interstructural distance of pair of posts and girder length are complementary, thereby girder is placed on the pier construction.
In above-mentioned three kinds of occasions, be raised and by across after between the pair of posts structure at girder, then be provided at one of pier construction and guiding space and on the girder and be provided at each the meeting device that is used for butt guiding space two parallel metopes on another pier construction and the girder and adjust an opposite face deviation between girder and pier construction, thereby a panel is placed on the docking section of pier construction and girder with one.
In addition, a girder according to the present invention is that a kind of like this girder is to middle regulator to middle regulator, wherein suspention has the girder of an object to be thus lifted between the pair of posts structure and connects with each top of pier construction, and this comprises middle regulator: one is installed in the hydraulic jack that is used to reverse installation direction on the girder; One is connected the carriage in the usefulness hydraulic jack repulsion pier construction operation; One draws in the linkage that is used for being connected to pier construction in the operation carrying out with hydraulic jack; An and slip guiding device that is used for carriage that is provided on the pier construction.Suggestion comprises that also one is provided at the guiding space on a pier construction and the girder; And one be provided at being used on another pier construction and the girder and extend to each extension apparatus of guiding space two parallel walls, like this by extension apparatus butt to the action of guiding the space being adjusted the opposite face deviation between girder and pier construction.
Main points of the present invention will be able to be understood by following specially for carrying out example.
Fig. 1～4 are for laying the explanatory diagram of the job practices of girder according to an embodiment of the invention.Erect form a building hold a boiler the steel frame pillar and with suspending rod with the interim beam suspention of girder on being provided at the pillar top under after, girder is raised, meanwhile the component block of boiler is mounted.In said process, be so a kind of method according to the job practices of laying girder of present embodiment, the interim beam of the two ends of its middle girder and a pillar connects and is combined as a whole fully with it.
Parallel with the assembling process of a steel frame or carry out simultaneously be: a steel frame pillar 20 is straightened as the parts under from first segment successively.As shown in Figure 2, one save and up hold up by a plurality of strut members 22 and the truss (not shown) that is used to connect a plurality of strut members 22 being combined steel frame pillar 20 successively from the bottom, the process of wherein holding up adopts a truck or crane or a crawler crane to transmit and is coupled to each other with lift frame spare and with frame unit carries out.Holding up the more piece pillar by order makes steel frame pillar 20 have the height corresponding to a building.In the such inside of the upper end of the steel frame pillar 20 of erect as mentioned above, provide a beam that connects girder, this girder will be connected mutually by last two ends with a supporting construction 24 that supports boiler suspension device.
As shown in Figure 2, the scaffold 24 that is used for supporting the boiler suspension device at the top that will be connected to steel frame pillar 20 have a plurality of girders 26 (figure is a girder 26) as the load bearing basis and with girder 26 interconnective central sills 28, and be fastened on the end face of central sill 28 and cause a grid to form so-called Chinese wistaria screen work therein by assisting beam 30.This Chinese wistaria screen work is configured in the bottom of girder 26, and is connected on the girder 26 so that suspension rod 32 is stretched downwards with the suspension rod 32 that is used to support boiler.By being hung and be connected on the suspension rod 32, boiler component supports boiler.
With steel frame pillar 20 as described above after the erect, one has the inboard that the girder tie-beam of forming with girder 26 same cross-sectional 34 is connected to the top of steel frame pillar 20.This girder tie-beam 34 is connected on a part of inwall of pillar 20 by a plate 36.Shown in Fig. 1 (A), come on the skew to tilt down substantially in the outstanding end that is formed with girder tie-beam 34, and wherein long vertical surface of upper end formation one extends; The bottom then forms short vertical surface and extends, and the medial end portions between upper and lower end then in an inclined direction forms the end face tangent plane of a continuous tilt.Corresponding to the above-mentioned formation of girder tie-beam 34, also be formed substantially on the skew to tilt at each ends of hanger frame 24 middle girders 26.Opposite with girder tie-beam 34, the bottom of girder 26 forms long vertical surface and extends its upper end and then form short vertical surface and extend, and the middle part between last, upper end then in an inclined direction forms a continuous tilt end face tangent plane.Consequently, when hanger frame girder 26 and girder tie-beam 34 were positioned at sustained height, the end face of girder 26 and beam 34 can dock mutually tightly.
On girder tie-beam 34 end faces, dispose a suspension gear 38 that is used to promote hanger frame 24, the component block of boiler is assembled and be connected on this hanger frame 24, these suspension gear 38 suspention one bars (or a cable wire) 40 bottoms with bar are connected on the hanger frame 24, bar 40 is draped and by forming the form of a cable wire in conjunction with many bars, and has and can intermittently promote and suspend in midair the structure of girder 26 by operating a jack.During erection work, the suspension gear 38 that is installed on the girder tie-beam 34 is carried out the operation of lifting arm 40 and the operation of suspention boiler component 42.Consequently: shown in Fig. 1 (A) and 1 (B) like that, the girder 26 of hanger frame 24 then begins a process that hanger frame 24 is connected with girder tie-beam 34 and fixes then tightly near the girder tie-beam 34 that is installed on steel frame pillar 20 tops.In the present embodiment, adopted following installation course.
Ad hoc, after girder 26 is tightly near the girder tie-beam 34 that is installed on steel frame pillar 20 top ends, then prepare a hydraulic jack ejection device reversibly is installed in a distolateral portion of girder 20, when the distance of 20 on two steel frame pillars is shorter than the connection length of girder 26, distance then by adjusting and amplify 20 on steel frame pillar with hydraulic jack repulsion slidably two pillars 20.Under reverse situation, distance then by a pair of steel frame pillar 20 being furthered mutually and adjusts and shorten 20 on steel frame pillar with hydraulic jack.By switching the direction of operating of jack device according to the detected value of distance of laying to 20 on a pair of steel frame pillar, and the length of the distance that makes 20 on steel frame pillar and girder 26 is complementary, thereby implements laying steel frame pillar 20.Therefore, when a pair of steel frame pillar 20 was outside or outward-dipping, 26 of girders were put on the steel frame pillar 20 simultaneously, and proofread and correct the inclination of pillar.
For carrying out above-mentioned all processes, girder 26 has as mentioned above a hydraulic jack 44.In addition, hydraulic jack 44 is reversibly installed, and its direction of operating can be selected like this, both can take the direction of steel frame pillar 20, can take the direction opposite with it again.This structure has a deflector roll 46 and is used as carriage, this deflector roll 46 can be connected in the operation of above-mentioned repulsion steel frame pillar 20 with this hydraulic jack 44, this structure also has a connecting rod 48 as linkage, and available this hydraulic jack 44 is connected this connecting rod in the above-mentioned operation that reduces the distance with steel frame pillar 20.On this steel frame pillar 20, provide a slip guiding device 50, as the carriage of deflector roll 46.
The relevant a kind of structure of following explanation is used for being raised and intilted at the same time steel frame takes steps a panel is being done accurately do smooth connection by this panel after the location when being pushed and opening when girder 26.
Fig. 3 and Fig. 4 are respectively the phantom drawing and the side elevation view of a state before promotion one opening operation to steel frame pillar 20 begins just are shown, and an end of girder 26 is shown.Each I-shaped joist steel that freely has a same size of girder 26 and tie-beam 34 is formed.Especially, tie-beam 34 is formed the soffit of girder with the state of overhanging, and wherein upper flange stretches out manyly than lower flange, and girder 26 forms the soffit of girder that the soffit of girder with tie-beam 34 with negative shape connects.In addition, two soffit of girders all have rake, just produce a wedging action in each soffit of girder portion like this when butt joint.In this embodiment, each soffit of girder end is all formed upper and lower upright end limit and middle part inclined side, and wherein the wedging action combines with a medium dip limit 34Wm of tie-beam 34 by the medium dip limit 26Wm with girder 26 and produces.
On the upper flange part that is fixed on the tie-beam 34 on the steel frame pillar 20, provide a jack mounting base 52.The suspension gear of being made up of four boiler jack that are installed on this jack mounting base 52 38 promotes an end of girders 26.For above-mentioned be raised girder one on upstanding edge 26Wu begin to contact tie-beam 34 one on promote and open steel frame pillar 20 before the upstanding edge 34Wu, promote hydraulic jack 44 and be fixed on the upper flange 26Fu of girder 26 through an immobilizing foundation 54.Promoting hydraulic jack 44 so is configured: its bar is extended towards bearing 20 and deflector roll 46 is connected to this rod end.Guide wheel 46 is one to comprise the slidably device of a plurality of rollers, and the rolling surface of its roller points to tie-beam 34.At that point, the position of the rolling surface of roller is positioned to and aligns with last upstanding edge 26Wu or stretch out slightly on the repulsion direction.
On the other hand, on the part of upstanding edge 34Wu on the tie-beam 34, provide the slip guiding device 50 of guide wheel 46 usefulness.All beginning faces that form guiding device 50 and be for a flat board being arranged to last upstanding edge 34Wu flush, and this guiding device 50 is configured in the upper guide plate 50U of stretching, extension up that following guiding device 50Dr on two corner portion of being made up of last upstanding edge 34Wu and upper flange 34Fu and 50Dl and be positioned on the upper flange 34Fu separately and is formed by a pair of.It should be noted: the bottom separately of following guiding device 50Dr and 50Dl all tilts to overlap mutually with a part of medium dip limit 34Wm, the rolling movement of guide wheel 46 can be provided thus and can lay girder 26 smoothly.So when girder 26 is raised, just before upstanding edge 34Wu on the upstanding edge 26Wu contact tie-beam 34 on the girder 26, guide wheel 46 begins to contact slip guiding device 50.The sliding surface position of guide wheel 46 is kept by a back pressure that produces guide wheel 46 by hydraulic jack 44, like this in being forced to property of the distance adjustment of 20 on a pair of steel frame pillar to produce a distance by the rolling surface defined that is provided at the guide wheel on girder 26 both ends, an i.e. distance that is positioned between the last upstanding edge 26Wu of girder 26, consequently, because being adjusted suitably, the distance that is positioned at 20 of pair of posts make girder 26 not interfere with tie-beam 34, even therefore pillar 20 slopes inwardly because of suspending about 2000 tons weight in midair, girder 26 still can be promoted and be transported to the position of laying like a cork, as shown in Figure 5.
If the soffit of girder 26W and the mutual inequal situation of 34W of girder 26 and tie-beam 34 occur, in the present embodiment, girder 26 be promoted to open 20 on a pair of steel frame pillar and in height the alignment after, make column 58 prop up each side of the parallel walls of guiding prodger 56 with an a pair of column 58 that is provided at the guiding prodger 56 in the steel frame pillar 20 and is provided on the girder 26, come to determine girder 26 position in the horizontal direction thus.Thus, the opposite face deviation that girder 26 and steel frame pillar are 20 is adjusted, and panel can be connected to joint portion, soffit of girder limit.Especially, shown in the more detailed figure of the schematic diagram of Fig. 1 and Fig. 6 and Fig. 7 like that, above-mentioned guiding mechanism has a pair of guiding prodger of being made up of the I-shaped joist steel 56, they stretch out from a side (in the face of girder 26) of boiler jack mounting base 52, on pedestal 52, guiding prodger 56 each all be configured in one with the equidistant position of the soffit of girder of tie-beam 34 on.On the girder 26 in inserting a space that is made of a pair of guiding prodger 56, provide a pair of and be used for girder 26 location cylinder devices 58 in the horizontal direction, they stretch to the mutual right face of two-phase of a pair of guiding prodger 56 separately.So the girder 26 that is promoted to desired height position stretches out the column of being followed 58, carry out the location adjustment of horizontal direction with a pair of guiding prodger 56 that is provided on the tie-beam 34 thus, thus will be neat by facing of coupling beam abdomen.
As described so far, in the place that girder 26 is promoted between a pair of steel frame pillar 20 and quilt is docked with the top of steel frame pillar 20 and fixes that is used to promote the boiler component piece, girder 26 can be placed in the steel frame pillar 20, the inclination inwardly of pillar 20 meanwhile is corrected, its mode is: when girder 26 was raised, the distance that pair of posts is 20 was used by being provided at promotion and the slide device that hydraulic jack 44 on the girder 26 and guide wheel 46 form and is passed in the process that girder 26 is moved to the riding position on the steel frame pillar 20 and open.Meanwhile, after the adjustment of the location of short transverse was carried out, the sliding cylinder spare 58 of girder 26 is stretched propped up a pair of guiding prodger 56 that is provided on the tie-beam 34, carries out the location adjustment of horizontal direction thus.Consequently, girder 26 is adjusted and can be obtained with respect to the correct location and the centering of tie-beam 34.
On the other hand, when girder 26 was raised, steel frame pillar 20 did not always tilt inwardly.The incline direction of pillar 20 is according to the link position that promotes the boiler jack 38 that girder uses and different.In the present embodiment, if the hydraulic jack that steel frame pillar 20 towards outer incline, is provided on the side end of girder 26 is then reversibly connected.Like this, when the spacing of steel frame pillar 20 be not more than girder 26 lay apart from the time, then carry out the adjustment of distance by the pillar that furthers with hydraulic jack 44.Because the application site and the load value of boiler know in advance, so incline direction and the inclination number of degrees can be calculated.So the installation direction of hydraulic jack 44 is moved according to the direction value of being calculated in advance.Hydraulic jack 44 is reversed the end face side that is connected with girder 26 that steel frame pillar 20 is furthered in Fig. 8 and the state illustrated in fig. 9.Adopt the connecting rod side to come to point to the mid point of girder with respect to the immobilizing foundation 54 of hydraulic jack 44, and provide a slide block 60 interconnected with the extension of connecting rod, connecting rod 48 interrelates slide block 60 and boiler jack mounting base 52.Like this, by operation hydraulic jack 44, extension rod pulls to the end face side of girder 26 through slide block 60 and connecting rod 48 with tie-beam 34, and tie-beam 34 and girder 26 are approaching to eliminate the gap between them like this.Consequently, even outward-dipping when a pair of steel frame pillar 20, the distance that pillar is 20 also is adjusted being fit to laying of girder, and to existing pier construction with wait that the centering process of laying girder 26 can very accurately carry out.The time of installation course that is the panel connection procedure that is used for girder 26 also are shorter than the time of routine techniques greatly.
Claims (6)
1. job practices of laying girder, the girder that wherein suspends an object in midair is thus lifted between the pair of posts structure and is fixed to each top of pier construction, it is characterized by: prevent that by lifting and mobile girder pier construction from tilting inwardly, in the process that girder is moved towards the riding position on pier construction, adopt simultaneously a pushing and slide device to promote and amplify the interstructural distance of pair of posts at it, like this girder is placed on the pier construction.
2. job practices of laying girder, the girder that wherein suspends an object in midair is thus lifted between the pair of posts structure and with each top of this pier construction and docks, this method comprises the following steps: to adopt the device that furthers to adjust the interstructural distance of pair of posts to make it to mate girder length, this device that furthers is used on girder is placed to a position on the pier construction each pier construction being pulled to girder, like this girder is placed on the pier construction.
3. job practices of laying girder, the girder that wherein suspends an object in midair is thus lifted between the pair of posts structure and with each top of this pier construction and docks, and this method comprises following all steps:
One hydraulic jack ejection device is installed in the installation direction of putting upside down hydraulic jack on the side end of girder;
According to pair of posts interstructural lay distance detected value mobile hydraulic jack Unit Installation direction, when the interstructural distance of pair of posts be shorter than girder lay length the time with hydraulic jack ejection device repulsion and with the sliding upper supporting column of girder, when the interstructural distance of pair of posts be longer than girder lay length the time with the hydraulic jack ejection device pier construction is pulled to girder;
With the long coupling of interstructural distance of pair of posts and girder, girder is placed on the pier construction.
4. as the described job practices of laying girder of one of claim 1～3, it is characterized by: after girder is raised and upholds between the pair of posts structure, be provided at guiding space and on one of pier construction and the girder with one and be provided at the meeting device on each on another pier construction and the girder, that be used to prop up guiding space two parallel walls and adjust opposite face deviation between girder and pier construction, such panel is connected on a docking part of pier construction and girder.
5. a girder is to middle regulator, and the girder that wherein suspends an object in midair is promoted between the pair of posts structure and with each end of this pier construction and docks, and this device comprises:
One hydraulic jack is installed in and reverses installation direction on the girder;
One carriage is connected by above-mentioned hydraulic jack in the operation of a repulsion pier construction;
One linkage is used for being connected to pier construction with above-mentioned hydraulic jack in a pull operation;
One slip guiding device is provided at and is used for above-mentioned carriage on the pier construction.
6. girder as claimed in claim 5 also comprises middle regulator:
One is provided at the guiding space on a pier construction and the girder; And
One is provided at the extension apparatus on another pier construction and the girder, is used to extend to each parallel walls in above-mentioned guiding space, like this by the action in the above-mentioned guiding of above-mentioned extension apparatus butt space being adjusted the opposite face deviation between girder and pier construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98117065 CN1128307C (en) | 1998-12-10 | 1998-12-10 | Construction method for laying main beam and main beam centering adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98117065 CN1128307C (en) | 1998-12-10 | 1998-12-10 | Construction method for laying main beam and main beam centering adjusting device |
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| Publication Number | Publication Date |
|---|---|
| CN1256344A true CN1256344A (en) | 2000-06-14 |
| CN1128307C CN1128307C (en) | 2003-11-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98117065 Expired - Fee Related CN1128307C (en) | 1998-12-10 | 1998-12-10 | Construction method for laying main beam and main beam centering adjusting device |
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| CN (1) | CN1128307C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101691815B (en) * | 2009-09-03 | 2011-04-20 | 中国建筑第四工程局有限公司 | Fast hoisting-aligning method for Large-sized steel frames, and steel frame base structure |
| CN101435270B (en) * | 2007-11-13 | 2012-04-04 | 上海宝冶建设有限公司 | High layer post subsection butt-joint operating method |
| CN104481154A (en) * | 2011-12-20 | 2015-04-01 | 中国核工业二三建设有限公司 | Method for mounting end beam of nuclear island of nuclear power plant |
| CN116771143A (en) * | 2023-08-25 | 2023-09-19 | 烟建集团有限公司 | Steel construction roof beam installation positioner |
-
1998
- 1998-12-10 CN CN 98117065 patent/CN1128307C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101435270B (en) * | 2007-11-13 | 2012-04-04 | 上海宝冶建设有限公司 | High layer post subsection butt-joint operating method |
| CN101691815B (en) * | 2009-09-03 | 2011-04-20 | 中国建筑第四工程局有限公司 | Fast hoisting-aligning method for Large-sized steel frames, and steel frame base structure |
| CN104481154A (en) * | 2011-12-20 | 2015-04-01 | 中国核工业二三建设有限公司 | Method for mounting end beam of nuclear island of nuclear power plant |
| CN104481154B (en) * | 2011-12-20 | 2016-08-03 | 中国核工业二三建设有限公司 | The method installing nuclear island end beam of nuclear power station |
| CN116771143A (en) * | 2023-08-25 | 2023-09-19 | 烟建集团有限公司 | Steel construction roof beam installation positioner |
| CN116771143B (en) * | 2023-08-25 | 2023-11-07 | 烟建集团有限公司 | Steel construction roof beam installation positioner |
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| Publication number | Publication date |
|---|---|
| CN1128307C (en) | 2003-11-19 |
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