CN103603496B - A kind of off normal integrally hoisting steel vestibule enters the method for position - Google Patents
A kind of off normal integrally hoisting steel vestibule enters the method for position Download PDFInfo
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Abstract
The present invention relates to a kind of method that off normal integrally hoisting steel vestibule enters position, tighten to be sticked by upper chord outside the two ends hanger of existing steel vestibule and put one and be made up of power transmission girder steel and the frontrear stretchers be separately positioned on girder steel front and back sides, before and after having, left and right deviates to spacing and supporting steel vestibule the lateral limiting device that steel vestibule arranges function on an orthography lower position, steel vestibule is made to carry out ground composite assembly on the position limited by lateral limiting device, hanging mechanism carries out low latitude oblique lifting, avoid steel vestibule and obstruction below an orthography is set, off normal entirety is vertically up, not only solve existing setting below an orthography at steel vestibule and there is architectural barriers thing, affect a large difficult point of conventional construction, and decrease the freight volume of amount of high-altitude operation and dispersion, there is easy construction, operating efficiency is high, construction cost is low and guarantee construction quality, the advantage of safety in production, that one of large span vertical-lift steel construction piece construction technology is innovated greatly, there are very strong practicality and operability.
Description
Technical field
The present invention relates to construction steel structure installation Technology field, particularly a kind of off normal integrally hoisting steel vestibule being suitable for interconnection erection high-altitude long-span steel vestibule between high-rise building enters the method for position.
Background technology
Increasingly beautify in the building operations of construction in city, various style different novelty building emerge in an endless stream.In the building engineering construction of some particular design, often run in some prior aries the new problem of not meeting, such as, interconnection between the nearly top floor of high-rise high building is needed to arrange in the construction of the steel vestibule be made up of several Pin steel truss and steel frame for one, generally adopt at present to arrange below an orthography at steel vestibule and bracing frame is upwards built in ground, construct the large-scale platform for lining in high-altitude, implement the on-the-spot high-altitude composite assembly of steel vestibule, enter the method for position welding, or employing arranges below an orthography at steel vestibule and ground arranges assembled moulding bed, vertical Integral lifting after composite assembly steel vestibule on moulding bed, enter the method for position welding.The shortcoming of front a kind of construction method needs to build the large-scale platform for lining in high-altitude, there are high-altitude engineering materials many, task weight and the work high above the ground work amount of transporting dispersed material to high-altitude are large, safety guarantee requires high, thus cause inefficiency, the weak point that the construction cost of steel vestibule is high is set, then a kind of employing low latitude installation on ground, overall vertical-lift enters position, the construction method that overhead welding is fixing, its advantage is fairly obvious, both the trouble of building installation at high altitude platform had been eliminated, again reduce to high-altitude transport dispersed material and the workload at high-altitude construction operation, low latitude composite assembly steel vestibule on the ground, not only easy construction, efficiency is high and quality controllability is strong, for raising construction quality, reduce construction cost and ensure safety in production very favourable.In rear a kind of construction method, involved steel vestibule main body is combined by some Pin steel trusss and some Pin steel frames and forms, for more general 3 Pin one deck steel trusss and the steel vestibule that forms of superposed 3 Pin tetra-layers of steel frame by being positioned at bottom, usually on the upper chord at every nearly two ends of Pin steel truss of steel vestibule, about 1 group 2 are respectively arranged with, amount to 3 groups 6, be referred to as the steel vestibule hanger of lower suspension centre, need in building, both sides to install steel vestibule correspondence position is set overhead Vierendeel girder on install to be provided with in advance the perpendicular 3 group of 6 corresponding lifting platform be only made up of steel corbel and support column in position be set with the hanger of steel vestibule, lifting platform is installed the hydraulic rockshaft being provided with and being called as and promoting steel vestibule suspension centre, upper in described each correspondence, the steel strand cable filling the post of messenger wire is provided with between lower suspension centre, the upper end of described steel strand cable penetrates from the bottom of hydraulic rockshaft, by drawing from hydraulic rockshaft upper end after the lock core of hydraulic rockshaft, and lock, lower end fastening is on the ground tackle of steel vestibule hanger, now, the suspension centre up and down of each correspondence is on same vertical line, and synchronous working.These two kinds of construction method technology maturations above-mentioned, at present commonly used by the industry.But it should be noted that: these two kinds of construction methods are all only applicable to arrange below an orthography at steel vestibule could implement without when any building existence or stop on ground or between intermediate floor.And steel vestibule between some building is arranged to have had on ground or between intermediate floor when the non-disconnectable block fixed buildings removed exists below an orthography just cannot implement, such as a certain identical with four of square layout agent structures, have between building, ground and be interconnected into three overall floor annex, and the steel concrete rain cover beam slab being provided with and exceeding structural column surface, building 2300mm width is also chosen at annex top, main building is the building of the complex high-rise frame-shear wall structure of 19 layers, if require that interconnection setting is between two made up of steel truss and steel frame between the position on of 15 floor to 19 floor in building, the long 29.4m of main body, wide 16.8m, high 25.95m, the steel vestibule of heavily about 520 tons, with in the special item construction of the structure building in squarer shape in aggregates, due to steel vestibule arrange below an orthography built have three layers of annex of top tape steel bar concrete rain cover non-disconnectable except property obstacle, thus on-the-spot neither possess at steel vestibule, the condition of upwards building bracing frame below an orthography is set, do not possess and the condition arranging assembled moulding bed and vertical-lift steel vestibule below an orthography is set at steel vestibule yet, therefore existing two kinds of construction methods all cannot be implemented.Faced with this situation, necessary probe into a kind of can effectively avoiding obstacles, assembled moulding bed can be built on the ground and composite assembly steel vestibule security improvement integrally can be guaranteed to enter the new method and apparatus of position again.
Summary of the invention
The object of the invention is to solve some construction site in prior art due to steel vestibule arrange below an orthography ground on or there is obstruction between intermediate floor and cannot arrange below an orthography at steel vestibule and ground is built bracing frame or assembled moulding bed, impact is constructed high-altitude operation platform or to be arranged below an orthography composite assembly steel vestibule on ground at steel vestibule, and vertical-lift enters the weak point of position, there is provided a kind of and obstruction existing between ground floor below an orthography can be set avoiding steel vestibule, can guarantee that again steel vestibule builds assembled moulding bed on the ground, and the steel vestibule Integral lifting of composite assembly is entered position to high-altitude, dock the method that the off normal integrally hoisting steel vestibule closed up enters position.
The method that off normal integrally hoisting steel vestibule of the present invention enters position is achieved in that by upper chord outside the hanger of the both ends outermost one Pin steel truss of the existing steel vestibule be made up of several Pin steel truss and number Pin steel frame, increase welding to arrange one and there is support limit steel vestibule deviate from the position that steel vestibule arranges below an orthography, to avoid the lateral limiting device that the steel vestibule obstruction arranged below an orthography on ground or between intermediate floor carries out hanging lifting, make steel vestibule can carry out composite assembly departing from the position that steel vestibule arranges below an orthography outside obstruction, and welding arranges described lateral limiting device on steel vestibule, make the assembled steel vestibule completed in the front and back of lateral limiting device, left and right to spacing and be held in the state of constant off normal under supporting, and carry out oblique lifting by hanging organization hydraulic pressure lifter, entirety is vertically up, realize off normal integrally hoisting steel vestibule, when steel vestibule is promoted the lifting operation being up to bottom it and namely stopping after higher than obstruction overhead height under off normal state, perform the operation of progressively removing lateral limiting device, steel vestibule is arranged below an orthography to steel vestibule gradually draw close, remove off normal, final reset arranges on the conventional vertical position below an orthography in steel vestibule, transfer execution vertical-lift steel vestibule to and enter position, the routine operation that overhead connection closes up, concrete operations flow process is as follows:
1, measure anterior-posterior horizontal off normal amount first measure steel vestibule to arrange below an orthography on ground or between intermediate floor the height of obstruction and ragged edge thereof along and reinforced concrete structure post surface, building between front and back vertical-horizontal width distance, then the well-to-do amount of 100mm is at least increased on this basis as required as the steel vestibule medial surface after composite assembly on moulding bed and at least off normal amount S of the anterior-posterior horizontal between structural column surface, and mark at least off normal amount S reference line on the ground, limit the anterior-posterior horizontal of steel vestibule thus to position;
2, determine that left-right amount of support is determined and vertical calibrating vertical support railway line A on the surface at building structural column, and with the inside lug axial line at the nearly two ends of steel vestibule for conventional vertical promotes reference line B, measure the horizontal range between vertical-lift reference line B and vertical support railway line A, using this as left and right horizontal at least off normal amount of support C, and on described at least off normal amount S reference line, mark the vertical line crosspoint D of described vertical-lift reference line B, as the positioning datum point of hanger on steel vestibule, limit the left and right of steel vestibule thus to position;
3, composite assembly steel vestibule steel vestibule arrange anterior-posterior horizontal below an orthography at least build assembled moulding bed outside off normal amount S reference line and on moulding bed composite assembly steel vestibule, the axial line of the two ends inside lug of the steel vestibule entirety that composite assembly is completed is positioned on the upright position that coincides with described crosspoint D, and the medial surface of steel vestibule is positioned at on the upright position that at least off normal amount S reference line coincides;
4, design and manufacture lateral limiting device with anterior-posterior horizontal at least off normal amount S length and left and right horizontal at least off normal amount of support C length for benchmark, arranging two has in left and right, before and after to be held in the lateral limiting device of constant off normal state Vertical lifting function to spacing and supporting steel vestibule entirety, described lateral limiting device main body is by a horizontal strip rigidity power transmission girder steel, in the vertical side being vertically set on a close end of girder steel and plan vertical is provided with the rigidity front strut of fixing bonding pad, vertical interval on another opposing perpendicular planes being arranged on another close end of girder steel and between the axial line of axial line and described rigidity front strut and described left and right horizontal at least off normal amount of support C length conform to and vertical interval between top fulcrum with described fixing bonding pad external surface and the described anterior-posterior horizontal at least rigidity rear pole of a radicle band pulley that conforms to of off normal amount S length, adjacently to be arranged on outside rigidity rear pole on other position and the jury strut of upper band jack is formed with one,
5, steel vestibule is fixedly installed lateral limiting device the fixing bonding pad on lateral limiting device is close to welding and is arranged on the other upper chord in side of the nearly outer end inside lug of existing structure form steel vestibule two ends outermost one Pin steel truss, make lateral limiting device and steel vestibule interconnect in rigid unitary structure, install on the peripheral steel vestibule of lateral limiting device simultaneously arrange can for after remove lateral limiting device time the operating platform of upper band safety barrier;
6, arrange hanging mechanism between building, existing both sides on the Vierendeel girder of overhead preset, the lifting platform be made up of steel corbel and support column is called the hydraulic rockshaft of upper suspension centre and steel vestibule are called lower suspension centre hanger between hanging steel strand cable is set, the upper end of steel strand cable penetrates from the bottom of hydraulic rockshaft, by drawing from hydraulic rockshaft upper end after the lock core of hydraulic rockshaft, and be locked on hydraulic rockshaft, lower end fastening is fixedly installed on the hanger ground tackle of the steel vestibule being in off normal state, now, upper and lower suspension centre is not on same vertical line, steel strand cable is in heeling condition, and there is drift angle between the drop wire of upper suspension centre,
7, off normal promotes steel vestibule when steel vestibule is promoted up, pulley on lateral limiting device contacts with the vertical support railway line A on structural column surface, supporting steel vestibule deviation structure post surface, before and after be limited in the constant position of described anterior-posterior horizontal at least outside off normal amount S, left and right is limited in by the described left and right horizontal constant position of the corresponding crosspoint D of hanger axial line that at least off normal amount of support C determines, make steel vestibule in constant off normal, with vertical up under the oblique lifting of two ends hanging steel strand cable, the pulley of lateral limiting device is along structural column surface scrolls, uplink synchronization, supporting steel vestibule is constant simultaneously remains in deviation structure post surface, by on front and back at least off normal amount S and the left and right horizontal upright position that at least off normal amount of support C determines, vertically up under the oblique traction of hanging steel strand cable, and guarantee that steel vestibule and hanging steel strand cable all can not touch any position of obstruction between ground floor, after steel vestibule upwards rises to and exceedes obstruction top 200mm height bottom it, namely hanging mechanism stops off normal promoting the up operation of steel vestibule, on the height and position that steel vestibule is held in now, operating personnel are on the operating platform being preset with safety barrier, under the supplemental support of the jury strut of upper band jack, start the operation of synchronously removing steel vestibule two ends lateral limiting device, by cutting frontrear stretchers and girder steel piecemeal, steel vestibule is made progressively to arrange below an orthography close to steel vestibule, finally remove lateral limiting device completely, steel vestibule resets completely and arranges on the upright position below an orthography in steel vestibule, just can recover to carry out conventional vertical lifting steel vestibule afterwards and enter position, the operation that overhead connection closes up.
Off normal integrally hoisting steel vestibule of the present invention based on above-mentioned design enters the method for position, due to according to the spread of obstruction on ground or between intermediate floor and barrier height, special exploration is provided with one and is convenient to steel vestibule avoiding obstacles and carries out off normal low latitude, ground composite assembly, and can supporting steel vestibule remain under constant off normal state by the lateral limiting device of hanging mechanism oblique lifting, for because arranging below an orthography on ground at steel vestibule or the special construction that there is obstruction between intermediate floor and conventional method can not be adopted to arrange the special building project of steel vestibule provides technical guarantee, be convenient to steel vestibule and avoid ground obstacle, depart from position that steel vestibule arranges below an orthography and carry out the assembling of low latitude, ground, by the oblique hanging of entirety under the off normal state of low latitude, when steel vestibule to rise to bottom it after higher than the overhead height of obstruction, remove lateral limiting device, steel vestibule is returned to steel vestibule and arranges below an orthography, recovery conventional vertical promotes, high-altitude enters bit manipulation, not only efficiently solve steel vestibule to arrange below an orthography and there is architectural barriers thing on ground or between intermediate floor, affect a large difficult point of conventional construction, and owing to decreasing the freight volume of amount of high-altitude operation and dispersion, bring easy construction, thus be conducive to entirety and increase work efficiency, reduce construction cost and guarantee construction quality, construction safety, conscientiously solve industry for a long time to thirst for solving always, but never obtain the difficult point effectively solved, it is the quantum jump innovation to large span vertical-lift steel construction piece construction technology, there is very strong operability and wide market application foreground.
Accompanying drawing explanation
Fig. 1 is the basic structure schematic diagram of embodiment of the present invention lateral limiting device;
Installment state top view when Fig. 2 is the use of the embodiment of the present invention;
Installment state lateral view when Fig. 3 is the use of the embodiment of the present invention.
In figure:
1. girder steel 11. 1 close ends 12. 1 another close ends of vertical side 13.
14. another opposing vertical sides 2. front struts 21. fix bonding pad 3. rear pole
31. pulley 4. jury strut 5. lateral limiting device 6. steel vestibule 61. steel trusss
62. hanger 63. upper chord 7. structural column surface 8. vertical support railway line A9. steel strand cables.
Detailed description of the invention
below in conjunction with accompanying drawing and exemplary embodiments, the invention will be further described.
At Fig. 1, in Fig. 2 and Fig. 3, the method that off normal integrally hoisting steel vestibule of the present invention enters position is achieved in that and arranges one have in front and back by upper chord 63 outside the hanger 62 of the existing steel vestibule 6 outermost one Pin steel truss 61 be made up of several Pin steel truss and number Pin steel frame increasing welding, left and right upwards limited support steel vestibule 6 deviates from the position that steel vestibule arranges below an orthography, obstruction between ground floor is set below an orthography carries out the lateral limiting device 5 of hanging lifting to avoid steel vestibule, steel vestibule 6 to be arranged below an orthography on ground or between intermediate floor outside obstruction departing from steel vestibule, composite assembly is carried out in the position limited by lateral limiting device 5, and welding arranges described lateral limiting device 5 on steel vestibule 6, make the assembled steel vestibule 6 completed in the front and back of lateral limiting device, left and right to spacing and be held in the state of constant off normal under supporting, and carry out oblique lifting by hanging organization hydraulic pressure lifter, entirety is vertically up, realize the operation of off normal integrally hoisting steel vestibule 6, when steel vestibule 6 is promoted the lifting operation being up to bottom it and namely stopping after higher than obstruction overhead height under off normal state by off normal, perform the operation of progressively removing lateral limiting device 5, steel vestibule 6 is arranged below an orthography to steel vestibule gradually draw close, remove off normal, final reset arranges on the conventional vertical position below an orthography in steel vestibule, transfer execution vertical-lift steel vestibule 6 to and enter position, the routine operation that overhead connection closes up, concrete operations flow process is as follows:
1, measure anterior-posterior horizontal off normal amount first measure steel vestibule to arrange below an orthography on ground or between intermediate floor the height of obstruction and top ragged edge thereof along and reinforced concrete structure post surface, building between front and back vertical-horizontal width distance, then the well-to-do amount of 100mm is at least increased on this basis as required as steel vestibule 6 medial surface after composite assembly on moulding bed and at least off normal amount S of the anterior-posterior horizontal between structural column surface 7, and mark at least off normal amount S reference line on the ground, limit the front and back of steel vestibule 6 thus to horizontal level;
2, determine that left-right amount of support is determined and vertical calibrating vertical support railway line A 8 on structural column surface, building 7, and with the axial line of the inside lug 62 at the nearly two ends of steel vestibule 6 for conventional vertical promotes reference line B, measure the horizontal range between vertical-lift reference line B and vertical support railway line A 8, and using this as left and right horizontal at least off normal amount of support C, and on described at least off normal amount S reference line, mark the vertical line crosspoint D of described vertical-lift reference line B, as the positioning datum point of hanger 62 on steel vestibule 6, limit the left and right of steel vestibule 6 thus to position,
3, composite assembly steel vestibule steel vestibule arrange anterior-posterior horizontal below an orthography at least build assembled moulding bed outside off normal amount S reference line and on moulding bed composite assembly steel vestibule 6, the axial line of the two ends inside lug 62 of steel vestibule 6 entirety that composite assembly is completed is positioned on the upright position that coincides with described crosspoint D, and the medial surface of steel vestibule 6 is positioned at on the upright position that at least off normal amount S reference line coincides;
4, design and manufacture lateral limiting device with anterior-posterior horizontal at least off normal amount S length and left and right horizontal at least off normal amount of support C length for benchmark, arranging two has in left and right, before and after to be held in the lateral limiting device 5 of constant off normal state Vertical lifting function to spacing and supporting steel vestibule 6 entirety, described lateral limiting device 5 main body is by a horizontal strip rigidity power transmission girder steel 1, in the vertical side 12 being vertically set on a close end 11 of girder steel 1 and plan vertical is provided with the rigidity front strut 2 of fixing bonding pad 21, be arranged on another opposing perpendicular planes 14 of another close end 13 of girder steel 1, vertical interval between the axial line of its axial line and rigidity front strut 2 and described left and right horizontal at least off normal amount of support C length conform to and vertical interval between top fulcrum with described fixing bonding pad external surface and the described anterior-posterior horizontal at least rigidity rear pole 3 of a radicle band pulley 31 that conforms to of off normal amount S length, adjacently to be arranged on outside rigidity rear pole 3 on other position and the jury strut 4 of upper band jack is formed with one,
5, steel vestibule is fixedly installed lateral limiting device the fixing bonding pad 21 on lateral limiting device 5 is close to welding and is arranged on the other upper chord 63 in side of the nearly outer end inside lug 62 of existing structure form steel vestibule 6 two ends outermost one Pin steel truss 61, make lateral limiting device 5 and steel vestibule 6 interconnects in rigid unitary structure, install on the peripheral steel vestibule 6 of lateral limiting device 5 simultaneously setting can for after remove lateral limiting device 5 time the operating platform of upper band safety barrier;
6, arrange hanging mechanism between building, existing both sides on the Vierendeel girder of overhead preset, the lifting platform be made up of steel corbel and support column is called the hydraulic rockshaft of upper suspension centre and steel vestibule 6 are called lower suspension centre hanger 62 between hanging steel strand cable 9 is set, the upper end of steel strand cable 9 penetrates from the bottom of hydraulic rockshaft, then draw from the upper end of hydraulic rockshaft, and be locked on hydraulic rockshaft, lower end fastening is fixedly installed on hanger 62 ground tackle of the steel vestibule 6 being in off normal state, now, upper and lower suspension centre is not on same vertical line, steel strand cable 9 is in heeling condition, and there is drift angle between the drop wire of upper suspension centre,
7, off normal promotes steel vestibule when steel vestibule 6 is up by lifting, pulley 31 on lateral limiting device 5 contacts with the vertical support railway line A 8 on structural column surface 7, supporting steel vestibule 6 deviation structure post surface 7, before and after be limited in the constant position of described anterior-posterior horizontal at least outside off normal amount S, left and right be limited in by described left and right horizontal at least off normal amount of support C determine, in the constant position of the crosspoint D corresponding with the axial line of hanger 62, make steel vestibule 6 vertical up under constant off normal with the oblique lifting of two ends hanging steel strand cable 9, the pulley 31 of lateral limiting device 5 rolls along structural column surface 7, uplink synchronization, supporting steel vestibule 6 is constant simultaneously remains in deviation structure post surface 7, by on front and back at least off normal amount S and the left and right horizontal upright position that at least off normal amount of support C determines, promote vertically upward under the oblique traction of hanging steel strand cable 9, and guarantee that steel vestibule 6 and hanging steel strand cable 9 all can not to touch on ground or any position of obstruction between intermediate floor, after steel vestibule 6 upwards rises to and exceedes obstruction top 200mm height bottom it, namely hanging mechanism stops off normal promoting the up operation of steel vestibule 6, on the height and position that steel vestibule 6 is held in now, operating personnel are on the operating platform being preset with safety barrier, the operation of synchronously removing steel vestibule 6 two ends lateral limiting device 5 is started under the supplemental support of the jury strut (4) of upper band jack, by cutting frontrear stretchers and girder steel piecemeal, steel vestibule 6 is made progressively to arrange below an orthography close to steel vestibule, the last lateral limiting device 5 of dismounting completely, steel vestibule 6 resets completely and arranges on the upright position below an orthography in steel vestibule, just can recover to carry out conventional vertical lifting steel vestibule 6 afterwards and enter position, the operation that overhead connection closes up.
Claims (1)
1. an off normal integrally hoisting steel vestibule enters the method for position, it is characterized in that: arrange one by the upper increase of close end hanger (62) outside upper chord (63) of both ends outermost one Pin steel truss (61) at the existing steel vestibule (6) be made up of several Pin steel truss and number Pin steel frame and have in front and back, left and right upwards limited support steel vestibule (6) deviates from the position that steel vestibule arranges below an orthography, to avoid steel vestibule, ground or middle floor gap obstruction below an orthography are set, carry out the lateral limiting device (5) of hanging lifting, steel vestibule (6) is made to arrange below an orthography between ground or intermediate floor outside obstruction departing from steel vestibule
,composite assembly is carried out in the position limited by lateral limiting device (5), and welding arranges described lateral limiting device (5), make the assembled steel vestibule (6) completed in the front and back of lateral limiting device (5), left and right to spacing and be held in the state of constant off normal under supporting, and carry out oblique lifting by hanging organization hydraulic pressure lifter, entirety is vertically up, realize the operation of off normal integrally hoisting steel vestibule (6), when steel vestibule (6) is promoted the lifting operation being up to bottom it and namely stopping after higher than obstruction overhead height under off normal state by off normal, perform the operation of progressively removing lateral limiting device (5), steel vestibule (6) is arranged below an orthography to steel vestibule gradually draw close, remove off normal, final reset arranges on the conventional vertical position below an orthography in steel vestibule, transfer execution vertical-lift steel vestibule (6) to and enter position, the routine operation that overhead connection closes up, concrete operations flow process is as follows:
1, measure anterior-posterior horizontal off normal amount first measure steel vestibule arrange the height of obstruction between ground below an orthography or intermediate floor and ragged edge thereof along and reinforced concrete structure post surface, building between front and back vertical-horizontal width distance, then the well-to-do amount of 100mm is at least increased on this basis as required as steel vestibule (6) medial surface after composite assembly on moulding bed and the anterior-posterior horizontal at least off normal amount S between structural column surface (7), and mark at least off normal amount S reference line on the ground, limit the front and back of steel vestibule (6) thus to horizontal level;
2, determine that left-right amount of support is determined and vertical calibrating vertical support railway line A(8 on structural column surface, building (7)), and be that conventional vertical promotes reference line B with the axial line of the close end hanger (62) at steel vestibule (6) two ends, measure vertical-lift reference line B and vertical support railway line A(8) between horizontal range, and using this as left and right horizontal at least off normal amount of support C, and on described at least off normal amount S reference line, mark the vertical line crosspoint D of described vertical-lift reference line B, as the positioning datum point of hanger (62) on steel vestibule, limit the left and right of steel vestibule (6) thus to position,
3, composite assembly steel vestibule steel vestibule arrange anterior-posterior horizontal below an orthography at least build assembled moulding bed outside off normal amount S reference line and on moulding bed composite assembly steel vestibule (6), the axial line of the two ends inside lug (62) that steel vestibule (6) that composite assembly is completed is overall is positioned on the upright position that coincides with described crosspoint D, and the medial surface of steel vestibule (6) is positioned at on the upright position that at least off normal amount S reference line coincides;
4, design and manufacture lateral limiting device with anterior-posterior horizontal at least off normal amount S length and left and right horizontal at least off normal amount of support C length for benchmark, arranging two has in left and right, before and after to be held in the lateral limiting device (5) of constant off normal state Vertical lifting function to spacing and supporting steel vestibule (6) entirety, described lateral limiting device (5) main body is by horizontal strip rigidity power transmission girder steel (1), upper and the plan vertical of the vertical side (12) being vertically set on a close end (11) of girder steel (1) is provided with the rigidity front strut (2) of fixing bonding pad (21), vertical interval between the axial line of the upper and axial line of another opposing perpendicular planes (14) being arranged on another close end (13) of girder steel (1) and rigidity front strut (2) and described left and right horizontal at least off normal amount of support C length conform to and vertical interval between top fulcrum with described fixing bonding pad (21) external surface and the described anterior-posterior horizontal at least rigidity rear pole (3) of a radicle band pulley (31) that conforms to of off normal amount S length, form with an adjacent other and jury strut (4) for upper band jack in rigidity rear pole (3) outside that is arranged on,
5, steel vestibule is fixedly installed lateral limiting device the fixing bonding pad (21) on lateral limiting device (5) is close to welding and is arranged on the outside upper chord (63) of the close end hanger (62) of existing structure form steel vestibule two ends outermost one Pin steel truss (61), lateral limiting device (5) and steel vestibule (6) is made interconnect in rigid unitary structure, simultaneously can for the operating platform of upper band safety barrier when removing lateral limiting device (5) later in peripheral steel vestibule (6) the upper installation setting of lateral limiting device (5);
6, arranging hanging mechanism to be arranged between building, both sides on the Vierendeel girder of overhead existing, the lifting platform be made up of steel corbel and support column is called the hydraulic rockshaft of upper suspension centre and steel vestibule (6) are called lower suspension centre hanger (62) between hanging steel strand cable (9) is set, the upper end of steel strand cable (9) penetrates from the bottom of hydraulic rockshaft, then draw from the upper end of hydraulic rockshaft, and be locked on hydraulic rockshaft, lower end fastening is fixedly installed on the hanger ground tackle of the steel vestibule (6) being in off normal state, now, steel strand cable (9) is in heeling condition, and there is drift angle between the drop wire of upper suspension centre,
7, off normal promotes steel vestibule when steel vestibule (6) is up by lifting, pulley (31) on lateral limiting device (5) and the vertical support railway line A(8 on structural column surface (7)) contact, supporting steel vestibule (6) deviation structure post surface (7), before and after be limited in the constant position of described anterior-posterior horizontal at least outside off normal amount S, left and right be limited in by described left and right horizontal at least off normal amount of support C determine, in the constant position of the crosspoint D corresponding with hanger axial line, make steel vestibule (6) vertical up under constant off normal with the oblique lifting of two ends hanging steel strand cable (9), pulley (31) on lateral limiting device (5) along structural column surface (
7) roll, uplink synchronization, supporting steel vestibule (6) is constant simultaneously remains in deviation structure post surface (7), by on front and back at least off normal amount S and the left and right horizontal upright position that at least off normal amount of support C determines, promote vertically upward under the oblique traction of hanging steel strand cable (9), and guarantee that steel vestibule (6) and hanging steel strand cable (9) all can not touch any position of obstruction between ground or intermediate floor, after steel vestibule (6) upwards rises to and exceedes obstruction top 200mm height bottom it, namely hanging mechanism stops off normal promoting the up operation of steel vestibule (6), steel vestibule (6) is made to be held on height and position now, operating personnel are on the operating platform being preset with safety barrier, the operation of synchronously removing steel vestibule (6) two ends lateral limiting device (5) is started under the supplemental support of the jury strut (4) of upper band jack, by cutting frontrear stretchers and girder steel piecemeal, steel vestibule (6) is made progressively to arrange below an orthography close to steel vestibule, finally remove lateral limiting device (5) completely, steel vestibule (6) resets completely and arranges on the upright position below an orthography in steel vestibule, just can recover to carry out conventional vertical lifting steel vestibule (6) afterwards and enter position, the operation that overhead connection closes up.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310674929.8A CN103603496B (en) | 2013-12-13 | 2013-12-13 | A kind of off normal integrally hoisting steel vestibule enters the method for position |
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| CN103821377B (en) * | 2014-03-10 | 2017-10-27 | 湖南金海钢结构股份有限公司 | Use the method for angle template contral steel structural roof beam downwarp |
| CN104746887B (en) * | 2015-03-27 | 2016-08-17 | 河北工业大学 | High-altitude plate installation mechanical system |
| CN105019556A (en) * | 2015-07-24 | 2015-11-04 | 安徽富煌钢构股份有限公司 | Lap-joint structure assisting quick hoisting of high-rise steel beam, and application of lap-joint structure |
| CN108589905B (en) * | 2018-04-09 | 2020-08-04 | 中国建筑第八工程局有限公司 | Truss corridor integral post-lifting construction system and construction method thereof |
| CN110683452A (en) * | 2018-07-07 | 2020-01-14 | 中国二十冶集团有限公司 | Lower lifting point for integral lifting of steel structure corridor and use method thereof |
| CN112267556B (en) * | 2020-10-10 | 2022-05-17 | 广东省构建工程建设有限公司 | Large-span steel structure corridor assembling construction process for narrow space |
| CN114876215B (en) * | 2022-06-16 | 2023-09-26 | 中铁建工集团有限公司 | Integral lifting process of conjoined structure |
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| JP2773052B2 (en) * | 1990-02-26 | 1998-07-09 | 株式会社熊谷組 | Steel beam positioning device |
| JPH0711190B2 (en) * | 1990-12-10 | 1995-02-08 | 鹿島建設株式会社 | Construction method of building using floor climbing type mobile jib crane |
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| CN103216103A (en) * | 2013-03-14 | 2013-07-24 | 江苏扬州建工建设集团有限公司 | Pre-deformation construction method for mounting oblique-arc-shaped combined steel-structured column of annular roof |
| CN103266779B (en) * | 2013-05-23 | 2016-03-30 | 广州建筑股份有限公司 | A kind of sliding and lifting construction equipment and method thereof of crossing horizontal obstacle thing |
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