CN103255838A - Construction method with adoption of large-tonnage long-stroke oil cylinder jacking mold frame - Google Patents
Construction method with adoption of large-tonnage long-stroke oil cylinder jacking mold frame Download PDFInfo
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- CN103255838A CN103255838A CN 201310167215 CN201310167215A CN103255838A CN 103255838 A CN103255838 A CN 103255838A CN 201310167215 CN201310167215 CN 201310167215 CN 201310167215 A CN201310167215 A CN 201310167215A CN 103255838 A CN103255838 A CN 103255838A
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Abstract
The invention relates to a construction method with the adoption of a large-tonnage long-stroke oil cylinder jacking mold frame. The adopted large-tonnage long-stroke oil cylinder jacking mold frame comprises five jacking devices, a steel truss, a top working platform arranged on the upper portion of the steel truss, an inner hanging frame device, an outer hanging frame device and a template device, wherein the inner hanging frame device, the outer hanging frame device and the template device are hung on the lower portion of the steel truss. Construction of a core tube is achieved in an independent climbing mode. The construction method breaks through constraint of a traditional construction mode, a mode of five supporting point non-symmetrical arrangement is adopted, increase of the area of the core region of a top mold platform is benefited, reduction of the area of an overhanging region is benefited due to the fact that a support is arranged on a region close to an outer wall to the greatest extent, the area of a construction platform is increased, safety is improved, and reduction of the work period is benefited.
Description
Technical field
The invention belongs to the building engineering construction field, relate to a kind of job practices that adopts the jacking mould bases, relate in particular to a kind of job practices that adopts the long stroke oil cylinder of large-tonnage jacking mould bases, be applied to the construction of high level and super highrise building core tube construction.
Background technology
Super-high building structure construction field at home, proposing the mould construction is to use maximum template construction methods at present.Support post in the existing integral jacking mould bases system adopts the large diameter steel pipe post of regular length as vertical support column usually, and need the design feature custom-made according to the difference building, the employing weld seam connects, construction period is long, the construction cost height, the installing/dismounting difficulty can't be had enough to meet the need use, so increased construction cost and difficulty of construction.Steel platform in the common integral jacking mould bases system is according in the engineering core barrel shape of executing, and adopts the welding Steel Space Truss platform of customized type, hangs hanger and template on this platform, simultaneously platform can be used for preloading, settle construction machinery, arrange the aisle.But because the existing space steel girder platform adopts shaped steel to be made of welded connection, the welding procedure very complicated not only puts up and takes time and effort, and remove after using also pretty troublesome, so prolonged the construction period greatly.
In addition, adopt stable triangular support system, the perhaps support system of four jiaos of symmetries in the prior art usually.The new west of a city of Guangzhou Zhujiang River tower engineering core barrel structure complexity for example, plane, stereochemical structure variation are many, there are 3 short wall plan-positions not change in the structure, therefore jack system support point are arranged on the position near 3 short walls, adopt 3 big stroke oil cylinder jack constructions; And capital, Shenzhen financial center engineering adopts 4 big stroke oil cylinder jacking mould bases constructions.Yet for having the comparatively core tube of narrow structure, adopt triangular support or four jiaos of symmetric support will have to increase the length in zone of encorbelmenting, thereby reduced the supporting capacity of operating platform, and bring potential safety hazard to construction.
Summary of the invention
In order to solve the above-mentioned technical problem that exists in the prior art, the object of the present invention is to provide a kind of job practices that adopts the long stroke oil cylinder of large-tonnage jacking mould bases, this job practices is applicable to the construction with sleeve configuration high level or superelevation layer core tube.Job practices of the present invention has broken through the constraint of traditional construction pattern, adopt the mode of five fulcrum asymmetric arrangement, be conducive to increase the area of backform steel platform nucleus, and support arrangement is conducive to reduce the regional area of encorbelmenting in the zone near exterior wall as far as possible, improve the area of operation platform and improved safety, be conducive to the reduction of erection time; Mould bases system of the present invention adopts well subtype steel truss assembly structure in addition, and it is that main standard package is formed that each parts adopts to satisfy modulus, and low, the convenient disassembly of cost is conducive to reduce cost and the reduction of erection time.
To achieve these goals, the present invention has adopted following technical scheme:
A kind of job practices that adopts the long stroke oil cylinder of large-tonnage jacking mould bases, the long stroke oil cylinder of described large-tonnage jacking mould bases comprises 5 lift-up device, the steel truss that is supported by the lift-up device of these 5 asymmetric settings, be arranged on the top working platform on described steel truss top, and hang interior hanging frame device, pylon device and plate device in the steel truss bottom, it is characterized in that the job practices of first jacking installation may further comprise the steps:
1. original state: lower-layer concrete is built and is finished, and 5 jacking cylinders are in the state that reclaims fully, the leave a blank height of reinforcing bar binding operation of steel truss bottom;
2. reinforcing bar binding: the colligation of beginning top reinforcement, wait lower-layer concrete simultaneously and reach after the regulation stripping after the intensity, the colligation vertical reinforcement, and finish truss bottom horizontal bar and stirrup;
3. form removal: after the vertical reinforcement colligation was finished, the stripping through-wall bolt utilized jack truss to get on the right track template is moved 300mm outward, carries out the template cleaning work;
4. jacking: the support beam end telescoping mechanism maintains static, oil cylinder jacking certain distance; Template rises same distance synchronously with steel truss in the jacking process, temporary fixed template:
5. reinforcing bar binding: colligation truss lower, transverse reinforcing bar and stirrup;
6. jacking: the support beam end telescoping mechanism maintains static, oil cylinder jacking certain distance; Template rises certain distance synchronously with steel truss in the jacking process;
7. matched moulds: utilize jack truss to get on the right track and will move 300mm in the template, template is in place, straightening are worn the template through-wall bolt template are fixed, and carry out the bottom and prevent the spillage measure;
8. concreting: the material distributing machine concreting, concreting speed is not more than 2m/ hour, and concreting is placed head tree supporting leg pre-embedded steel slab to the top before concrete initial set.
A kind of job practices that adopts the long stroke oil cylinder of large-tonnage jacking mould bases, the long stroke oil cylinder of described large-tonnage jacking mould bases comprises 5 lift-up device, the steel truss that is supported by the lift-up device of these 5 asymmetric settings, be arranged on the top working platform on described steel truss top, and hang interior hanging frame device, pylon device and plate device in the steel truss bottom, it is characterized in that the job practices of typical floor jacking installation may further comprise the steps:
(1) reset condition: lower-layer concrete is built and is finished, and 5 jacking cylinders are in the state that reclaims fully, the leave a blank height of reinforcing bar binding operation of steel truss bottom;
(2) reinforcing bar binding: beginning top reinforcement colligation, wait lower-layer concrete simultaneously and reach after the regulation stripping after the intensity, the colligation vertical reinforcement, and finish truss bottom horizontal bar and stirrup;
(3) remove the supporting leg upper mould: remove the template on head tree upper supporting leg top, utilize and lead chain or tower crane and template is moved to do not hinder climb location, remove the path for climbing, prepare to climb;
(4) climb: regain two side legs on the head tree, head tree climbs, and the height that climbs is the floor height of typical floor;
(5) supporting leg is in place: the head tree upper supporting leg stretches out, and falls within on the steel plate that pad is put in advance on the body of wall;
(6) form removal, the stripping through-wall bolt utilizes jack truss to get on the right track template is moved 300mm outward, carries out the template cleaning work;
(7) jacking: the support beam end telescoping mechanism maintains static, oil cylinder jacking certain distance; Template rises same distance synchronously with steel truss in the jacking process;
(8) reinforcing bar binding: colligation truss lower, transverse reinforcing bar and stirrup;
(9) jacking: the support beam end telescoping mechanism maintains static, oil cylinder jacking certain distance; Template rises certain distance synchronously with steel truss in the jacking process;
(10) matched moulds: utilize jack truss to get on the right track and will move 300mm in the template, template is in place, straightening are worn the template through-wall bolt template are fixed, and prevent the spillage measure bottom carrying out;
(11) concreting: the material distributing machine concreting, concreting speed is not more than 2m/ hour, and concreting is placed head tree supporting leg pre-embedded steel slab to the top before concrete initial set.
In the long stroke oil cylinder of the described large-tonnage jacking mould bases, described steel truss is made of 2 high main couples of 2.4m and 9 high jack truss of 1.7m, and the primary and secondary truss is formed by the 6m main couple unit splicing of 6 feast-brand mark standards; The 1st row's jack truss to the 4 row's jack truss are made up of the 6m jack truss unit of 4 feast-brand mark standards, and wherein two joints are arranged to double form in the middle of the 3rd row's jack truss; The 6th row's jack truss is made up of the 6m truss element of 3 feast-brand mark standards, and the 5th row's jack truss, the 8th row's jack truss, the 9th row's jack truss are made up of the 6m truss element of 2 feast-brand mark standards; Described 9 high jack truss of 1.7m be arranged in parallel, the spacing of the 2nd row's jack truss to the 1 row's jack truss is 4100mm, the spacing of the 3rd row's jack truss to the 2 row's jack truss is 6050mm, the spacing of the 4th row's jack truss to the 3 row's jack truss is 6000mm, the spacing of the 6th row's jack truss to the 4 row's jack truss is 5950mm, the spacing of the 7th row's jack truss to the 6 row's jack truss is 3120mm, the spacing of the 8th row's jack truss to the 7 row's jack truss is 6000mm, and the spacing of the 9th row's jack truss to the 8 row's jack truss is 2875mm; The 1st lift-up device is positioned on the 2nd main couple and its vertical distance to the 1st row's jack truss is 3350mm, the horizontal range of the 1st row's jack truss one end to the 1 lift-up device is 6925mm, the horizontal range of the 2nd row's jack truss to the 1 lift-up device is 7425mm, the horizontal range of the 3rd row's jack truss to the 1 lift-up device is 6725mm, the horizontal range of the 4th row's jack truss to the 1 lift-up device is 6925mm, the horizontal range of the 6th row's jack truss to the 1 lift-up device is 6925mm, the horizontal range of the 7th row's jack truss to the 1 lift-up device is 4000mm, the horizontal range of the 8th row's jack truss to the 1 lift-up device is 2230mm, and the horizontal range of the 9th row's jack truss to the 1 lift-up device is 3150mm; The 2nd lift-up device is positioned on the 1st main couple, and its horizontal range to the 1st lift-up device is 10150mm, and its vertical distance to the 1st lift-up device is 3350mm; The 3rd lift-up device is positioned on the 3rd row's jack truss, and its horizontal range to the 1st lift-up device is 5750mm, and its vertical distance to the 1st lift-up device is 6700mm; The 4th lift-up device is positioned at the place, crosspoint of the 2nd main couple and the 5th row's jack truss, and its horizontal range to the 1st lift-up device is 500mm, and its vertical distance to the 1st lift-up device is 15800mm; The 5th lift-up device is positioned on the 1st main couple, and its horizontal range to the 1st lift-up device is 7275mm, and its vertical distance to the 1st lift-up device is 24470mm.
In the long stroke oil cylinder of the described large-tonnage jacking mould bases, the head tree of described lift-up device is made up of outer square tube and interior square tube, interior square tube is connected with the steel truss on its top, outer square tube is connected with supporting leg, described lift-up device also comprises supporting leg truss, guide legs and is connected jacking cylinder between supporting leg truss and the guide legs, described supporting leg truss comprises that supporting leg truss main body and 2 supporting legs and 2 supporting legs of being connected on the supporting leg truss drive oil cylinders, and described guide legs comprises that guide legs main body and guide legs drive oil cylinder.
In the long stroke oil cylinder of the described large-tonnage jacking mould bases, the 6m main couple unit of described standard comprise the end have the main couple lower chord that the main couple upper chord of screw, end have screw and be welded to connect at interval between main couple upper chord and main couple lower chord the vertical web member of main couple and between two vertical web members of main couple oblique 2 oblique web members of main couple that are connected, described main couple upper chord, main couple lower chord, the vertical web member of main couple and the oblique web member of main couple all adopt H shaped steel formation; The 6m jack truss unit of described standard comprise the end have the jack truss lower chord that the jack truss upper chord of screw, end have screw and be welded to connect at interval between jack truss upper chord and jack truss lower chord the vertical web member of jack truss and between two vertical web members of jack truss oblique 2 oblique web members of jack truss that are connected, described jack truss upper chord, jack truss lower chord, the vertical web member of jack truss and the oblique web member of jack truss all adopt H shaped steel formation: main couple removably is connected by the truss connector at the crossover location place with jack truss.
In described job practices, the job practices of first jacking installation may further comprise the steps:
1. original state: lower-layer concrete is built and is finished, and 5 jacking cylinders are in the state that reclaims fully, and the height 2400mm of reinforcing bar binding operation leaves a blank in the steel truss bottom;
2. reinforcing bar binding: the colligation of beginning top reinforcement, wait lower-layer concrete simultaneously and reach after the regulation stripping after the intensity, the colligation vertical reinforcement, and finish truss bottom 2100mm horizontal bar and stirrup;
3. form removal: after the vertical reinforcement colligation was finished, the stripping through-wall bolt utilized jack truss to get on the right track template is moved 300mm outward, carries out the template cleaning work;
4. jacking: the support beam end telescoping mechanism maintains static, oil cylinder jacking 2400mm; Template rises 2400mm synchronously with steel truss in the jacking process, temporary fixed template;
5. reinforcing bar binding: the above transverse reinforcement of colligation truss bottom 2100mm and stirrup;
6. jacking: the support beam end telescoping mechanism maintains static, oil cylinder jacking 1800mm; Template rises certain distance synchronously with steel truss in the jacking process;
7. matched moulds: utilize jack truss to get on the right track and will move 300mm in the template, template is in place, straightening are worn the template through-wall bolt template are fixed, and carry out the bottom and prevent the spillage measure;
8. concreting: the material distributing machine concreting, concreting speed is not more than 2m/ hour, and concreting is placed head tree supporting leg pre-embedded steel slab to the top before concrete initial set.
In described job practices, the job practices of typical floor jacking installation may further comprise the steps:
(1) reset condition: lower-layer concrete is built and is finished, and 5 jacking cylinders are in the state that reclaims fully, and the height 2400mm of reinforcing bar binding operation leaves a blank in the steel truss bottom;
(2) reinforcing bar binding: beginning top reinforcement colligation, wait lower-layer concrete simultaneously and reach after the regulation stripping after the intensity, the colligation vertical reinforcement, and finish truss bottom 2100mm horizontal bar and stirrup;
(3) remove the supporting leg upper mould: remove the template on head tree upper supporting leg top, utilize and lead chain or tower crane and template is moved to do not hinder climb location, remove the path for climbing, prepare to climb;
(4) climb: regain two side legs on the head tree, the head tree 4200mm that climbs;
(5) supporting leg is in place: the head tree upper supporting leg stretches out, and falls within on the steel plate that pad is put in advance on the body of wall;
(6) form removal, the stripping through-wall bolt utilizes jack truss to get on the right track template is moved 300mm outward, carries out the template cleaning work;
(7) jacking: the support beam end telescoping mechanism maintains static, oil cylinder jacking 2400mm; Template rises 2400mm synchronously with steel truss in the jacking process;
(8) reinforcing bar binding: colligation truss bottom residue 1800mm transverse reinforcement and stirrup;
(9) jacking: the support beam end telescoping mechanism maintains static, oil cylinder jacking 1800mm; Template rises 1800mm synchronously with steel truss in the jacking process;
(10) matched moulds: utilize jack truss to get on the right track and will move 300mm in the template, template is in place, straightening are worn the template through-wall bolt template are fixed, and prevent the spillage measure bottom carrying out;
(11) concreting: the material distributing machine concreting, concreting speed is not more than 2m/ hour, and concreting is placed head tree supporting leg pre-embedded steel slab to the top before concrete initial set.
Compared with prior art the present invention has following beneficial effect:
1. job practices of the present invention has adopted to innovation the long stroke jack of the large-tonnage system of five fulcrum asymmetric arrangement, is specially adapted to have the construction of the core tube of long and narrow unsymmetric structure; Be conducive to increase the construction area of backform steel platform nucleus, and support arrangement be conducive to reduce the regional area of encorbelmenting in the zone near exterior wall as far as possible, be conducive to improve safety of construction.
2. mainly to adopt to satisfy modulus be that main standard package is formed to each parts of jacking mould bases of adopting of job practices of the present invention, and cost is low, easy accessibility, and multiple combination has improved the compliance of system to different engineerings; This mould bases system realizes only needing carry out appropriate reconstruction to template when super layer building changes of section, and that support system remains is constant.Can realize the turnover use of assemblies such as support post, steel platform, hanger, template, effectively reduce construction costs.
3. the jacking strong point that adopts of job practices of the present invention is positioned on the wall top, the restriction of no step pitch, and lifting height can arbitrarily be adjusted according to actual conditions; Because whole truss is positioned on the structure wall, there is not the structural entity problem of falling in the work progress, safe and reliable.
4. the present invention is according to main stress truss and time stressed truss of the arrangements steel platform of core tube, the steel platform mainly is made up of the standard component that satisfies modulus, at each inter-module by removably connecting, assembly is assemblied into assembly type variable steel girder platform, so put up very simple, accelerated the construction period greatly, reduced construction cost.
5. mould bases of the present invention can form the working space of an independence, sealing, safety; The steel truss of mould bases both had been used for hanging template, hanger, and the platform of full shop is arranged on the bottom girder, also was the stockyard of material and the attachment of construction machinery simultaneously; Whole platform and template, hanger are finished from climbing by hydraulic jacking system, have reduced in the work progress the dependence of tower crane, have saved the labour, have improved efficiency of construction.
6. in the job practices of the present invention, the jacking strong point is positioned at builds and possesses on the wall top of certain intensity, the restriction of no step pitch, and lifting height can arbitrarily be adjusted according to actual conditions.After concreting is good, at once can the adjunction assembling reinforcement, the time of assembling reinforcement is the curing time of cast-in-situ concrete just, thereby is conducive to improve efficiency of construction, saves the duration.
Description of drawings
Fig. 1: the structural representation of the long stroke oil cylinder of large-tonnage of the present invention jacking mould bases;
Fig. 2: the position view of steel truss and lift-up device;
Fig. 3: lift-up device structural representation;
Fig. 4: main couple standard block structural representation;
Fig. 5: jack truss standard block structural representation;
Fig. 6: the structural representation of pylon device;
Fig. 7: the structural representation of plate device;
Fig. 8 A-Fig. 8 H: first jacking installation flow chart;
Fig. 9 A-Fig. 9 K: typical floor jacking installation flow chart;
Among the figure, the represented implication of each Reference numeral is:
Hanging frame device, 50-pylon device, 60-mould bases device in 10-lift-up device, 20-steel truss, 30-top working platform, the 40-; 101-the 1st lift-up device, 102-the 2nd lift-up device, 103-the 3rd lift-up device, 104-the 4th lift-up device, 105-the 5th lift-up device, 201-the 1st main couple, 202-the 2nd main couple, 211-the 1st row's jack truss, 212-the 2nd row's jack truss, 213-the 3rd row's jack truss, 214-the 4th row's jack truss, 215-the 5th row's jack truss, 216-the 6th row's jack truss, 217-the 7th row's jack truss, 218-the 8th row's jack truss, 219-the 9th row's jack truss; 11-head tree, 12-supporting leg truss, 13-supporting leg, 14-support oil cylinder, 15-guide legs, 16-jacking cylinder, 17-guide legs oil cylinder, 18-carriage; 21-main couple upper chord, 22-main couple lower chord, the vertical web member of 23-main couple, the oblique web member of 24-main couple; 26-jack truss upper chord, 27-jack truss lower chord, the vertical web member of 28-jack truss, the oblique web member of 29-jack truss; 51-linkage, 52-axis of rotation, 53-pylon H shaped steel, 54-outer tube, the solid scaffold of 55-peace moral; 61-hangs mobile wheel, 62-regulates flower basket bolt, 63-template suspension ring, 64-template.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment technical scheme of the present invention is described in detail, but accompanying drawing and specific embodiment be not as the restriction to the present invention's technical scheme required for protection.
Job practices of the present invention adopts the long stroke oil cylinder of large-tonnage jacking mould bases, as shown in Figure 1, it comprises: lift-up device 10, steel truss 20, be arranged on the top working platform 30 on described steel truss top, and hang interior hanging frame device 40, pylon device 50 and plate device 60 in the steel truss bottom, be used for having the construction of the erose core tube of sleeve configuration.
Wherein said jacking mould bases comprises 5 lift-up device 10 altogether, as shown in Figure 3, the head tree 11 of described lift-up device 10 is made up of outer square tube and interior square tube, interior square tube is connected with the steel truss 20 on its top by carriage 18, outer square tube is connected with supporting leg 13, described lift-up device 10 also comprises supporting leg truss 12, guide legs 15 and be connected supporting leg truss 12 and guide legs 15 between jacking cylinder 16, described supporting leg truss 12 comprises that supporting leg truss main body and 2 supporting legs 13 and 2 supporting legs of being connected on the supporting leg truss drive oil cylinders 14, and described guide legs 15 comprises that guide legs main body and guide legs drive oil cylinder 17; Lift-up device of the present invention is selected medium-sized hydraulic pressure backform for use, can select specifications and models to be: CSWMG--120 type, 120 tons of rated loads; Each lift-up device includes 1 115t hydraulic jack, and effective travel is 4.5m, and 0.086 meter/minute of the specified jacking speed of hydraulic pressure backform system is climbed speed: 0.26 meter/minute certainly; The head tree that hydraulic jack drives is sitting in builds and has on the above wall top of 13Mpa intensity.
Shown in accompanying drawing 2,4-5, described steel truss is made of 2 high main couples of 2.4m and 9 high jack truss of 1.7m, and the primary and secondary truss is formed by the 6m main couple unit splicing of 6 feast-brand mark standards; The 1st row's jack truss 211 to the 4th row's jack truss 214 are made up of the 6m jack truss unit of 4 feast-brand mark standards, and wherein two joints are arranged to double form in the middle of the 3rd row's jack truss 213; The 6th row's jack truss 216 is made up of the 6m truss element of 3 feast-brand mark standards, and the 5th row's jack truss 215, the 8th row's jack truss 218, the 9th row's jack truss 219 are made up of the 6m truss element of 2 feast-brand mark standards; Described 9 high jack truss of 1.7m be arranged in parallel, the spacing of the 2nd row's jack truss 212 to the 1st row's jack truss 211 is 4100mm, the spacing of the 3rd row's jack truss 213 to the 2nd row's jack truss 212 is 6050mm, the spacing of the 4th row's jack truss 214 to the 3rd row's jack truss 213 is 6000mm, the spacing of the 6th row's jack truss 216 to the 4th row's jack truss 214 is 5950mm, the spacing of the 7th row's jack truss 217 to the 6th row's jack truss 216 is 3120mm, the spacing of the 8th row's jack truss 218 to the 7th row's jack truss 217 is 6000mm, and the spacing of the 9th row's jack truss 219 to the 8th row's jack truss 218 is 2875mm; The 1st lift-up device 101 is positioned on the 2nd main couple 202 and its vertical distance to the 1st row's jack truss 211 is 3350mm, the horizontal range of the 1st row's jack truss 211 1 ends to the 1 lift-up device 101 is 6925mm, the horizontal range of the 2nd row's jack truss 212 to the 1st lift-up device 101 is 7425mm, the horizontal range of the 3rd row's jack truss 213 to the 1st lift-up device 101 is 6725mm, the horizontal range of the 4th row's jack truss 214 to the 1st lift-up device 101 is 6925mm, the horizontal range of the 6th row's jack truss 216 to the 1st lift-up device 101 is 6925mm, the horizontal range of the 7th row's jack truss 217 to the 1st lift-up device 101 is 4000mm, the horizontal range of the 8th row's jack truss 218 to the 1st lift-up device 101 is 2230mm, and the horizontal range of the 9th row's jack truss 219 to the 1st lift-up device 101 is 3150mm; The 2nd lift-up device 102 is positioned on the 1st main couple 101, and its horizontal range to the 1st lift-up device 101 is 10150mm, and its vertical distance to the 1st lift-up device 101 is 3350mm; The 3rd lift-up device 103 is positioned on the 3rd row's jack truss 213, and its horizontal range to the 1st lift-up device 101 is 5750mm, and its vertical distance to the 1st lift-up device 101 is 6700mm; The 4th lift-up device 104 is positioned on the 2nd main couple 102, and its horizontal range to the 1st lift-up device 101 is 500mm, and its vertical distance to the 1st lift-up device 101 is 15800mm; The 5th lift-up device 105 is positioned on the 1st main couple 101, and its horizontal range to the 1st lift-up device 101 is 7275mm, and its vertical distance to the 1st lift-up device 101 is 24470mm.As shown in Figure 4, the 6m main couple unit of described standard comprise the end have the main couple lower chord 22 that the main couple upper chord 21 of screw, end have screw and be welded to connect at interval main couple upper chord and the vertical web member 23 of the main couple between the main couple lower chord and between two vertical web members of main couple the oblique oblique web member 24 of 2 main couples that is connected, described main couple upper chord 21, main couple lower chord 22, the vertical web member 23 of main couple and the oblique web member 24 of main couple all adopt H shaped steel formation.Wherein the specification of the upper and lower chord member employing of main couple is: H300 * 200 * 8 * 12, material are Q345; The specification of vertical web member is H200 * 200 * 8 * 12, and material is Q345; The specification of oblique web member is H300 * 200 * 8 * 12, and material is Q345.As shown in Figure 5, the 6m jack truss unit of described standard comprise the end have the jack truss lower chord 27 that the jack truss upper chord 26 of screw, end have screw and be welded to connect at interval jack truss upper chord 26 and the vertical web member 28 of the jack truss between the jack truss lower chord 27 and between two vertical web members of jack truss the oblique oblique web member 29 of 2 jack truss that is connected, described jack truss upper chord, jack truss lower chord, the vertical web member of jack truss and the oblique web member of jack truss all adopt H shaped steel formation.The specification that the upper and lower chord member of jack truss adopts is: H300 * 200 * 8 * 12, material are Q345; The specification of vertical web member is H150 * 100 * 6 * 9, and material is Q345; The specification of oblique web member is H150 * 150 * 7 * 10, and material is Q345.Main couple removably is connected by the truss connector at the crossover location place with jack truss.
As exemplarily, as shown in Figure 6, described pylon device adopts assembling, and it comprises and mainly comprises the solid scaffold 55 of linkage 51, axis of rotation 52, pylon H shaped steel 53, outer tube 54 and An De.Interior hanging rack structure and its structure are similar.As shown in Figure 7, described plate device comprises that mainly hanging movement takes turns 61, regulates flower basket bolt 62, template suspension ring 63 and template.The hanger system design is to adopt the assembling combining structure, and first floor length of boom is 2.5m, and all the other each layer length of booms are 2.0m, and every layer of vertical suspension rod connects by the typing joint, adopts fixedly H shaped steel of special fastener on it.When arranging, hanger to be arranged as principle along metope, guarantees that all there is hanger the both sides of every face wall body or coupling beam.0.7 meter of hanger transfer, 2.5 meters and 1.5 meters of standard advances, 2.0 meters of step pitches efflux one safe protective railing of vertical rod setting, and fixed installation expanded metal lath in the outside all arranges the cant beam pull bar inside and outside the hanger, guarantee the resistance to overturning of support body.Hanger on the corner arranges non-standard advance, if the exterior wall pylon has the interior time receiving should be towards the center of circle of curved wall.The exterior wall arc area generally can design meter part variable region lattice, and in the time receiving in the outer arcuate body of wall, variable region lattice shape changes to guarantee that its both sides standard regions lattice can move towards center of circle direction.When in the body of wall of top, receiving bigger variation, the length that can suitably regulate non-bid section.Plug-in tripod length is 0.3-0.5m, reserves the space of a part of template back arris and Screw arbor with nut at both-ends.The pedal of hanger operation layer adopts the steel pedal, but bottom one deck hanger need be totally-enclosed.In the normal construction, tripod is in suspension status; When form removal, plug-in tripod is removed, and makes between hanger and the body of wall to keep certain distance, reserves certain space for moving back mould, and reserves the working space of cleaning panel, avoids hanger to be pullled by body of wall and cause danger simultaneously.Hanger utilizes the hanger beams that hangs under the steel platform as suspension centre and the sliding rail of hanger, when wall section changes, realizes that by mobile pulley hanger along the rail beam slippage, adjusts the distance between hanger and body of wall.Security protection comprises that the outer facade protection of hanger, horizontal protective, steel platform face that frontier defense is protected, cat ladder security protection, electric wire protection, the protection of hydraulic means oil circuit etc.Face the limit around the outer side elevation of hanger and the steel platform and adopt diameter 1.5mm, mesh is not more than the expanded metal lath sealing protection of 30mm, and level and vertical protection all adopt angle steel skeleton to add the form of expanded metal lath, when guaranteeing useful life longevity, avoid disaster hidden-trouble; Face the limit in the steel platform and adopt the protection of welding guard rail rod; The hydraulic means oil circuit is fixed on i iron or the channel-section steel inboard is protected.Super highrise building vertical transport passage is the step ladder system from the steel work flooring is connected to the hanger bottom.Go on foot terraced structure and adopt the special-purpose step ladder of the solid steel of peace moral.Steel step ladder is hung on the jack truss H shaped steel bottom at lifting platform edge, arranges on top and leads chain structure, realizes the independent lift function of steel ladder.Steel ladder is in ordinary circumstance and falls within bottom steel work flooring, only when the bottom flooring is constructed, adopts and leads that chain is mentioned and socket fixing with the concrete super-high building structure temporarily temporarily.The minor axis both sides of super highrise building, any moment will guarantee that all at least one steel ladder is in upstate.Large form is hung on jack truss or jack truss bottom H shaped steel, connects by mobile wheel, and mobile wheel connection down can be regulated the M20 flower basket bolt, and flower basket bolt is connected with template top suspension ring.
In addition, the long stroke oil cylinder of large-tonnage of the present invention jacking form frame system also comprises control system, and as exemplarily, described control system comprises hydraulic control system and electric-control system; Described hydraulic control system comprises the hydraulic pump that is linked in sequence by hydraulic oil pipeline, the solenoid operated directional valve that is used for the control hydraulic oil flow direction, the electromagnetic proportional valve that is used for the control hydraulic fluid flow rate, equalizing valve, is used for driving master cylinder, the small oil tank of described support system and driving described hydraulic pressure pump motor; Described electric-control system comprises the console of controlling described solenoid operated directional valve, electromagnetic proportional valve and motor for the output signal of telecommunication, the limit sensors that is used for the stroke sensor of gathering the run-length data of master cylinder and being sent to console and is used for gathering the run-length data of small oil tank and is sent to console.
Adopt the long stroke oil cylinder of above-mentioned large-tonnage jacking mould bases to carry out the construction of core tube, wherein the job practices of first jacking installation may further comprise the steps:
Shown in Fig. 8 A, original state: lower-layer concrete is built and is finished, and 5 jacking cylinders are in the state that reclaims fully, the leave a blank height of reinforcing bar binding operation of steel truss bottom;
Shown in Fig. 8 B, reinforcing bar binding: beginning top reinforcement colligation, wait lower-layer concrete simultaneously and reach after the regulation stripping after the intensity, the colligation vertical reinforcement, and finish truss bottom horizontal bar and stirrup;
Shown in Fig. 8 C, form removal: after the vertical reinforcement colligation was finished, the stripping through-wall bolt utilized jack truss to get on the right track template is moved 300mm outward, carries out the template cleaning work;
Shown in Fig. 8 D, jacking: the support beam end telescoping mechanism maintains static, oil cylinder jacking certain distance; Template rises same distance synchronously with steel truss in the jacking process, temporary fixed template;
Shown in Fig. 8 E, reinforcing bar binding: colligation truss lower, transverse reinforcing bar and stirrup;
Shown in Fig. 8 F, jacking: the support beam end telescoping mechanism maintains static, oil cylinder jacking certain distance; Template rises certain distance synchronously with steel truss in the jacking process;
Shown in Fig. 8 G, matched moulds: utilize jack truss to get on the right track and will move 300mm in the template, template is in place, straightening are worn the template through-wall bolt template are fixed, and prevent the spillage measure bottom carrying out;
Shown in Fig. 8 H, concreting: the material distributing machine concreting, concreting speed is not more than 2m/ hour, and concreting is placed head tree supporting leg pre-embedded steel slab to the top before concrete initial set.
Adopt the long stroke oil cylinder of above-mentioned large-tonnage jacking mould bases to carry out the construction of core tube, wherein the job practices of typical floor jacking installation mainly may further comprise the steps:
Shown in Fig. 9 A, reset condition: lower-layer concrete is built and is finished, and 5 jacking cylinders are in the state that reclaims fully, the leave a blank height of reinforcing bar binding operation of steel truss bottom;
Shown in Fig. 9 B, reinforcing bar binding: beginning top reinforcement colligation, wait lower-layer concrete simultaneously and reach after the regulation stripping after the intensity, the colligation vertical reinforcement, and finish truss bottom horizontal bar and stirrup;
Shown in Fig. 9 C, remove the supporting leg upper mould: remove the template on head tree upper supporting leg top, utilize and lead chain or tower crane and template is moved to do not hinder climb location, remove the path for climbing, prepare to climb;
Shown in Fig. 9 D, climb: regain two side legs on the head tree, head tree climbs, and the height that climbs is the floor height of typical floor;
Shown in Fig. 9 E, supporting leg is in place: the head tree upper supporting leg stretches out, and falls within on the steel plate that pad is put in advance on the body of wall;
Shown in Fig. 9 F, form removal, the stripping through-wall bolt utilizes jack truss to get on the right track template is moved 300mm outward, carries out the template cleaning work;
Shown in Fig. 9 G, jacking: the support beam end telescoping mechanism maintains static, oil cylinder jacking certain distance; Template rises same distance synchronously with steel truss in the jacking process;
Shown in Fig. 9 H, reinforcing bar binding: colligation truss lower, transverse reinforcing bar and stirrup;
Shown in Fig. 9 I, jacking: the support beam end telescoping mechanism maintains static, oil cylinder jacking certain distance; Template rises certain distance synchronously with steel truss in the jacking process;
Shown in Fig. 9 J, matched moulds: utilize jack truss to get on the right track and will move 300mm in the template, template is in place, straightening are worn the template through-wall bolt template are fixed, and prevent the spillage measure bottom carrying out;
Shown in Fig. 9 K, concreting: the material distributing machine concreting, concreting speed is not more than 2m/ hour, and concreting is placed head tree supporting leg pre-embedded steel slab to the top before concrete initial set.
In the work progress of super highrise building, first three layers and below generally adopt conventional construction method to construct with large form, adopt the construction of the long stroke oil cylinder of large-tonnage jacking mould bases since (especially typical floor) more than three layers, do behind building interior and the outside horizontal floor this moment, and desk-top early-dismantling support system construction is adopted in suggestion.The super highrise building template adopts the construction of pin-connected panel all steel large template system, and template is pressed on-gauge plate combination configuration.From design feature, take into full account the structure construction requirement, satisfying the requirement of concrete construction quality, and guarantee under the prerequisite of construction safety, accomplish that template is general to greatest extent, should reduce template number and specification as much as possible, make the stencil design manufacturing more meet the actual requirement of construction, reach suitable, economical, reasonable, safety.
When (1) low layer adopted traditional job practices construction, template was assisted mounting or dismounting with tower crane;
(2) if when the super highrise building thickness of wall body changes, press bottom configuration gang form, other layer then adds or reduces template and has enough to meet the need use;
(3) wall body door or window hole adopts typing hole steel form;
(4) super highrise building is met the time receiving in the outer wall body layer, only needs to remove local template, or directly adopts the windmill structure of square crossing.
(5) if super highrise building interior wall body of wall layer has attenuate or thickens to four-way is unidirectional, then directly adopt the way that subtracts or add template, all templates all will be prepared in advance.
Promote construction and must set up special command and management tissue, the hydraulic control panel operating personnel should carry out professional training, can on dutyly operate after qualified, forbid other staff to operate.When non-standard layers floor height overgauge was high layer by layer, the jacking mould bases can promote once more or connect height at template formwork suitable for reading; The non-standard layers floor height is during less than the typical floor floor height, and concrete is built by the actual height requirement.Promote construction should matched moulds finish with concreting after carry out vertical missing twice and measure.If any deviation, should before upper former is fastening, proofread and correct.Before support body promotes, the obstruction that the whole split bolts on the necessary stripping and obstruction promote; Remove surplus material on the support body, dig all safety cover plates, remove between the adjacent sectional support body, being connected between support body and the structure, check that hydraulic test all is in normal operating conditions, the concrete strength at the stressed place of supporting body satisfies support body and promotes requirement.Mould bases sectional and whole promote synchronously promotes the setting of control parameter synchronously: the difference that rises between every section adjacent seat in the plane should be in 1/200, whole rise difference should be in 50mm.Whole lifting synchronously should be assumed unified command of by the commander in chief, and each segmentation seat in the plane should be equipped with enough monitor staff.
The raw material of reinforced bar engineering, processing, connection, installation and acceptance should meet National Standard concrete structure engineering construction quality standards of acceptance " GB50204 and " highrise building concrete structure tecnical regulations " JGJ3 pertinent regulations.Should eject split bolt, the position line on the substructure surface before template is installed, avoid vertical reinforcement to collide with the split bolt position; The engineering that vertical reinforcement is intensive, when above-mentioned position and reinforcing bar were collided, the reply reinforcement location was adjusted.After each layer concrete is built and finished, the good horizontal reinforcement of 2～4 road colligations should be arranged more than concrete surface.8.3.4 after the top reinforcement colligation was finished, should there be temporary fixed measure its upper end.
Construction of Concrete Engineering, examination should meet the pertinent regulations of national current standard " concrete structure engineering construction quality standards of acceptance " GB50204 and " highrise building concrete structure tecnical regulations " JGJ3.Concreting should be adopted the material distributing machine uniform distribution, placement layer by layer, and layering is vibrated; And answer conversion to build direction, interlock counterclockwise clockwise and carry out.The operating platform of concreting position should be taked to spread iron sheet, measures such as iron dustpan are set, and prevents that the lower-layer concrete surface is contaminated.
The reinforcing bar lifting answers the gradation segmentation to carry out, and reinforcing bar need divide two zones to stack, and the stacking amount of each every district reinforcing bar must not be above 5 tons, and gross weight must not be above 10 tons.Concreting material distributing machine (3 tons) needs to finish at reinforcing bar binding, and top can not lift when having unnecessary reinforcing bar material, and only can be put in the reinforcing bar laydown area.The vertical reinforcement that steel truss is above, as do not have spacing measure meeting run-off the straight or bending, it is temporary fixed that limiting bracket etc. can be set in the construction.The limiting bracket that arranges will be removed in good time, does not influence normally climbing of mould bases system.To note concretely building order in the work progress, uniform distribution and layering are watered and are smash, prevent the braced structures skew and tilt; Load on the operating platform comprises that equipment, material and the stream of people evenly distribute, and must not overload, and guarantees that braced structures is stable.Before the concreting, at template surface mark location built-in fitting, remind the vibrating spear operating personnel to insert a some position at vibrating spear and avoid the built-in fitting position, in order to avoid vibrating spear collision location built-in fitting etc. causes displacement during concrete vibrating.
The above; it only is the specific embodiment of the present invention; can not be interpreted as limiting scope of the present invention with this, the embodiment of all distortion of making in the claimed scope of claims of the present invention that is equal to and change is all in the present invention's scope required for protection.
Claims (10)
1. job practices that adopts the long stroke oil cylinder of large-tonnage jacking mould bases, the long stroke oil cylinder of described large-tonnage jacking mould bases comprises 5 lift-up device, the steel truss that is supported by the lift-up device of these 5 asymmetric settings, be arranged on the top working platform on described steel truss top, and hang interior hanging frame device, pylon device and plate device in the steel truss bottom, it is characterized in that the job practices of first jacking installation may further comprise the steps:
1. original state: lower-layer concrete is built and is finished, and 5 jacking cylinders are in the state that reclaims fully, the leave a blank height of reinforcing bar binding operation of steel truss bottom;
2. reinforcing bar binding: the colligation of beginning top reinforcement, wait lower-layer concrete simultaneously and reach after the regulation stripping after the intensity, the colligation vertical reinforcement, and finish truss bottom horizontal bar and stirrup;
3. form removal: after the vertical reinforcement colligation was finished, the stripping through-wall bolt utilized jack truss to get on the right track template is moved 300mm outward, carries out the template cleaning work;
4. jacking: the support beam end telescoping mechanism maintains static, oil cylinder jacking certain distance; Template rises same distance synchronously with steel truss in the jacking process, temporary fixed template;
5. reinforcing bar binding: colligation truss lower, transverse reinforcing bar and stirrup;
6. jacking: the support beam end telescoping mechanism maintains static, oil cylinder jacking certain distance; Template rises certain distance synchronously with steel truss in the jacking process;
7. matched moulds: utilize jack truss to get on the right track and will move 300mm in the template, template is in place, straightening are worn the template through-wall bolt template are fixed, and carry out the bottom and prevent the spillage measure;
8. concreting: the material distributing machine concreting, concreting speed is not more than 2m/ hour, and concreting is placed head tree supporting leg pre-embedded steel slab to the top before concrete initial set.
2. the job practices of the long stroke oil cylinder of the described employing large-tonnage of claim 1 jacking mould bases is characterized in that the job practices of first jacking installation may further comprise the steps:
1. original state: lower-layer concrete is built and is finished, and 5 jacking cylinders are in the state that reclaims fully, and the height 2400mm of reinforcing bar binding operation leaves a blank in the steel truss bottom;
2. reinforcing bar binding: the colligation of beginning top reinforcement, wait lower-layer concrete simultaneously and reach after the regulation stripping after the intensity, the colligation vertical reinforcement, and finish truss bottom 2100mm horizontal bar and stirrup;
3. form removal: after the vertical reinforcement colligation was finished, the stripping through-wall bolt utilized jack truss to get on the right track template is moved 300mm outward, carries out the template cleaning work;
4. jacking: the support beam end telescoping mechanism maintains static, oil cylinder jacking 2400mm; Template rises 2400mm synchronously with steel truss in the jacking process, temporary fixed template;
5. reinforcing bar binding: the above transverse reinforcement of colligation truss bottom 2100mm and stirrup;
6. jacking: the support beam end telescoping mechanism maintains static, oil cylinder jacking 1800mm; Template rises certain distance synchronously with steel truss in the jacking process;
7. matched moulds: utilize jack truss to get on the right track and will move 300mm in the template, template is in place, straightening are worn the template through-wall bolt template are fixed, and carry out the bottom and prevent the spillage measure;
8. concreting: the material distributing machine concreting, concreting speed is not more than 2m/ hour, and concreting is placed head tree supporting leg pre-embedded steel slab to the top before concrete initial set.
3. the job practices of claim 1 or the long stroke oil cylinder of 2 described employing large-tonnages jacking mould bases is characterized in that described steel truss is made of 2 high main couples of 2.4m and 9 high jack truss of 1.7m, and the primary and secondary truss is formed by the 6m main couple unit splicing of 6 feast-brand mark standards; The 1st row's jack truss to the 4 row's jack truss are made up of the 6m jack truss unit of 4 feast-brand mark standards, and wherein two joints are arranged to double form in the middle of the 3rd row's jack truss; The 6th row's jack truss is made up of the 6m truss element of 3 feast-brand mark standards, and the 5th row's jack truss, the 8th row's jack truss, the 9th row's jack truss are made up of the 6m truss element of 2 feast-brand mark standards; Described 9 high jack truss of 1.7m be arranged in parallel, the spacing of the 2nd row's jack truss to the 1 row's jack truss is 4100mm, the spacing of the 3rd row's jack truss to the 2 row's jack truss is 6050mm, the spacing of the 4th row's jack truss to the 3 row's jack truss is 6000mm, the spacing of the 6th row's jack truss to the 4 row's jack truss is 5950mm, the spacing of the 7th row's jack truss to the 6 row's jack truss is 3120mm, the spacing of the 8th row's jack truss to the 7 row's jack truss is 6000mm, and the spacing of the 9th row's jack truss to the 8 row's jack truss is 2875mm; The 1st lift-up device is positioned on the 2nd main couple and its vertical distance to the 1st row's jack truss is 3350mm, the horizontal range of the 1st row's jack truss one end to the 1 lift-up device is 6925mm, the horizontal range of the 2nd row's jack truss to the 1 lift-up device is 7425mm, the horizontal range of the 3rd row's jack truss to the 1 lift-up device is 6725mm, the horizontal range of the 4th row's jack truss to the 1 lift-up device is 6925mm, the horizontal range of the 6th row's jack truss to the 1 lift-up device is 6925mm, the horizontal range of the 7th row's jack truss to the 1 lift-up device is 4000mm, the horizontal range of the 8th row's jack truss to the 1 lift-up device is 2230mm, and the horizontal range of the 9th row's jack truss to the 1 lift-up device is 3150mm; The 2nd lift-up device is positioned on the 1st main couple, and its horizontal range to the 1st lift-up device is 10150mm, and its vertical distance to the 1st lift-up device is 3350mm; The 3rd lift-up device is positioned on the 3rd row's jack truss, and its horizontal range to the 1st lift-up device is 5750mm, and its vertical distance to the 1st lift-up device is 6700mm; The 4th lift-up device is positioned at the place, crosspoint of the 2nd main couple and the 5th row's jack truss, and its horizontal range to the 1st lift-up device is 500mm, and its vertical distance to the 1st lift-up device is 15800mm; The 5th lift-up device is positioned on the 1st main couple, and its horizontal range to the 1st lift-up device is 7275mm, and its vertical distance to the 1st lift-up device is 24470mm.
4. the job practices of claim 1 or the long stroke oil cylinder of 2 described employing large-tonnages jacking mould bases, the head tree that it is characterized in that described lift-up device is made up of outer square tube and interior square tube, interior square tube is connected with the steel truss on its top, outer square tube is connected with supporting leg, described lift-up device also comprises the supporting leg truss, guide legs and be connected jacking cylinder between supporting leg truss and the guide legs, described supporting leg truss comprises that supporting leg truss main body and 2 supporting legs and 2 supporting legs of being connected on the supporting leg truss drive oil cylinders, and described guide legs comprises that guide legs main body and guide legs drive oil cylinder.
5. the job practices of the long stroke oil cylinder of the described employing large-tonnage of claim 3 jacking mould bases, the 6m main couple unit that it is characterized in that described standard comprise the end have the main couple lower chord that the main couple upper chord of screw, end have screw and be welded to connect at interval between main couple upper chord and main couple lower chord the vertical web member of main couple and between two vertical web members of main couple oblique 2 oblique web members of main couple that are connected, described main couple upper chord, main couple lower chord, the vertical web member of main couple and the oblique web member of main couple all adopt H shaped steel formation; The 6m jack truss unit of described standard comprise the end have the jack truss lower chord that the jack truss upper chord of screw, end have screw and be welded to connect at interval between jack truss upper chord and jack truss lower chord the vertical web member of jack truss and between two vertical web members of jack truss oblique 2 oblique web members of jack truss that are connected, described jack truss upper chord, jack truss lower chord, the vertical web member of jack truss and the oblique web member of jack truss all adopt H shaped steel formation; Main couple removably is connected by the truss connector at the crossover location place with jack truss.
6. job practices that adopts the long stroke oil cylinder of large-tonnage jacking mould bases, the long stroke oil cylinder of described large-tonnage jacking mould bases comprises 5 lift-up device, the steel truss that is supported by the lift-up device of these 5 asymmetric settings, be arranged on the top working platform on described steel truss top, and hang interior hanging frame device, pylon device and plate device in the steel truss bottom, it is characterized in that the job practices of typical floor jacking installation may further comprise the steps:
(1) reset condition: lower-layer concrete is built and is finished, and 5 jacking cylinders are in the state that reclaims fully, the leave a blank height of reinforcing bar binding operation of steel truss bottom;
(2) reinforcing bar binding: beginning top reinforcement colligation, wait lower-layer concrete simultaneously and reach after the regulation stripping after the intensity, the colligation vertical reinforcement, and finish truss bottom horizontal bar and stirrup;
(3) remove the supporting leg upper mould: remove the template on head tree upper supporting leg top, utilize and lead chain or tower crane and template is moved to do not hinder climb location, remove the path for climbing, prepare to climb;
(4) climb: regain two side legs on the head tree, head tree climbs, and the height that climbs is the floor height of typical floor;
(5) supporting leg is in place: the head tree upper supporting leg stretches out, and falls within on the steel plate that pad is put in advance on the body of wall;
(6) form removal, the stripping through-wall bolt utilizes jack truss to get on the right track template is moved 300mm outward, carries out the template cleaning work;
(7) jacking: the support beam end telescoping mechanism maintains static, oil cylinder jacking certain distance; Template rises same distance synchronously with steel truss in the jacking process;
(8) reinforcing bar binding: colligation truss lower, transverse reinforcing bar and stirrup;
(9) jacking: the support beam end telescoping mechanism maintains static, oil cylinder jacking certain distance; Template rises certain distance synchronously with steel truss in the jacking process;
(10) matched moulds: utilize jack truss to get on the right track and will move 300mm in the template, template is in place, straightening are worn the template through-wall bolt template are fixed, and prevent the spillage measure bottom carrying out;
(11) concreting: the material distributing machine concreting, concreting speed is not more than 2m/ hour, and concreting is placed head tree supporting leg pre-embedded steel slab to the top before concrete initial set.
7. the job practices of the long stroke oil cylinder of the described employing large-tonnage of claim 6 jacking mould bases is characterized in that the job practices of typical floor jacking installation may further comprise the steps:
(1) reset condition: lower-layer concrete is built and is finished, and 5 jacking cylinders are in the state that reclaims fully, and the height 2400mm of reinforcing bar binding operation leaves a blank in the steel truss bottom;
(2) reinforcing bar binding: beginning top reinforcement colligation, wait lower-layer concrete simultaneously and reach after the regulation stripping after the intensity, the colligation vertical reinforcement, and finish truss bottom 2100mm horizontal bar and stirrup;
(3) remove the supporting leg upper mould: remove the template on head tree upper supporting leg top, utilize and lead chain or tower crane and template is moved to do not hinder climb location, remove the path for climbing, prepare to climb;
(4) climb: regain two side legs on the head tree, the head tree 4200mm that climbs;
(5) supporting leg is in place: the head tree upper supporting leg stretches out, and falls within on the steel plate that pad is put in advance on the body of wall;
(6) form removal, the stripping through-wall bolt utilizes jack truss to get on the right track template is moved 300mm outward, carries out the template cleaning work;
(7) jacking: the support beam end telescoping mechanism maintains static, oil cylinder jacking 2400mm; Template rises 2400mm synchronously with steel truss in the jacking process;
(8) reinforcing bar binding: colligation truss bottom residue 1800mm transverse reinforcement and stirrup;
(9) jacking: the support beam end telescoping mechanism maintains static, oil cylinder jacking 1800mm; Template rises 1800mm synchronously with steel truss in the jacking process;
(10) matched moulds: utilize jack truss to get on the right track and will move 300mm in the template, template is in place, straightening are worn the template through-wall bolt template are fixed, and prevent the spillage measure bottom carrying out;
(11) concreting: the material distributing machine concreting, concreting speed is not more than 2m/ hour, and concreting is placed head tree supporting leg pre-embedded steel slab to the top before concrete initial set.
8. the job practices of claim 6 or the long stroke oil cylinder of 7 described employing large-tonnages jacking mould bases is characterized in that described steel truss is made of 2 high main couples of 2.4m and 9 high jack truss of 1.7m, and the primary and secondary truss is formed by the 6m main couple unit splicing of 6 feast-brand mark standards; The 1st row's jack truss to the 4 row's jack truss are made up of the 6m jack truss unit of 4 feast-brand mark standards, and wherein two joints are arranged to double form in the middle of the 3rd row's jack truss; The 6th row's jack truss is made up of the 6m truss element of 3 feast-brand mark standards, and the 5th row's jack truss, the 8th row's jack truss, the 9th row's jack truss are made up of the 6m truss element of 2 feast-brand mark standards; Described 9 high jack truss of 1.7m be arranged in parallel, the spacing of the 2nd row's jack truss to the 1 row's jack truss is 4100mm, the spacing of the 3rd row's jack truss to the 2 row's jack truss is 6050mm, the spacing of the 4th row's jack truss to the 3 row's jack truss is 6000mm, the spacing of the 6th row's jack truss to the 4 row's jack truss is 5950mm, the spacing of the 7th row's jack truss to the 6 row's jack truss is 3120mm, the spacing of the 8th row's jack truss to the 7 row's jack truss is 6000mm, and the spacing of the 9th row's jack truss to the 8 row's jack truss is 2875mm; The 1st lift-up device is positioned on the 2nd main couple and its vertical distance to the 1st row's jack truss is 3350mm, the horizontal range of the 1st row's jack truss one end to the 1 lift-up device is 6925mm, the horizontal range of the 2nd row's jack truss to the 1 lift-up device is 7425mm, the horizontal range of the 3rd row's jack truss to the 1 lift-up device is 6725mm, the horizontal range of the 4th row's jack truss to the 1 lift-up device is 6925mm, the horizontal range of the 6th row's jack truss to the 1 lift-up device is 6925mm, the horizontal range of the 7th row's jack truss to the 1 lift-up device is 4000mm, the horizontal range of the 8th row's jack truss to the 1 lift-up device is 2230mm, and the horizontal range of the 9th row's jack truss to the 1 lift-up device is 3150mm; The 2nd lift-up device is positioned on the 1st main couple, and its horizontal range to the 1st lift-up device is 10150mm, and its vertical distance to the 1st lift-up device is 3350mm; The 3rd lift-up device is positioned on the 3rd row's jack truss, and its horizontal range to the 1st lift-up device is 5750mm, and its vertical distance to the 1st lift-up device is 6700mm; The 4th lift-up device is positioned at the place, crosspoint of the 2nd main couple and the 5th row's jack truss, and its horizontal range to the 1st lift-up device is 500mm, and its vertical distance to the 1st lift-up device is 15800mm; The 5th lift-up device is positioned on the 1st main couple, and its horizontal range to the 1st lift-up device is 7275mm, and its vertical distance to the 1st lift-up device is 24470mm.
9. the job practices of claim 6 or the long stroke oil cylinder of 7 described employing large-tonnages jacking mould bases, the head tree that it is characterized in that described lift-up device is made up of outer square tube and interior square tube, interior square tube is connected with the steel truss on its top, outer square tube is connected with supporting leg, described lift-up device also comprises the supporting leg truss, guide legs and be connected jacking cylinder between supporting leg truss and the guide legs, described supporting leg truss comprises that supporting leg truss main body and 2 supporting legs and 2 supporting legs of being connected on the supporting leg truss drive oil cylinders, and described guide legs comprises that guide legs main body and guide legs drive oil cylinder.
10. the job practices of the long stroke oil cylinder of the described employing large-tonnage of claim 8 jacking mould bases, the 6m main couple unit that it is characterized in that described standard comprise the end have the main couple lower chord that the main couple upper chord of screw, end have screw and be welded to connect at interval between main couple upper chord and main couple lower chord the vertical web member of main couple and between two vertical web members of main couple oblique 2 oblique web members of main couple that are connected, described main couple upper chord, main couple lower chord, the vertical web member of main couple and the oblique web member of main couple all adopt H shaped steel formation; The 6m jack truss unit of described standard comprise the end have the jack truss lower chord that the jack truss upper chord of screw, end have screw and be welded to connect at interval between jack truss upper chord and jack truss lower chord the vertical web member of jack truss and between two vertical web members of jack truss oblique 2 oblique web members of jack truss that are connected, described jack truss upper chord, jack truss lower chord, the vertical web member of jack truss and the oblique web member of jack truss all adopt H shaped steel formation; Main couple removably is connected by the truss connector at the crossover location place with jack truss.
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| CN105649324A (en) * | 2016-03-01 | 2016-06-08 | 中国建筑第八工程局有限公司 | Movable type hanging rack slide beam connecting device |
| CN106760467A (en) * | 2017-01-23 | 2017-05-31 | 江苏弘盛建设工程集团有限公司 | A kind of vertical hoistway trackless is from the safe cage of lifting self-lock formula |
| CN107605141B (en) * | 2017-08-25 | 2019-01-29 | 上海建工集团股份有限公司 | The contracture device and construction method of hanging feet hand system outside a kind of integral steel platform corner |
| CN107605141A (en) * | 2017-08-25 | 2018-01-19 | 上海建工集团股份有限公司 | The contracture device and construction method of hanging feet hand system outside a kind of integral steel platform corner |
| CN107675883B (en) * | 2017-09-25 | 2020-05-08 | 中建三局第一建设工程有限责任公司 | Convex point box girder for top die |
| CN107675883A (en) * | 2017-09-25 | 2018-02-09 | 中建三局第建设工程有限责任公司 | Salient point box beam for backform |
| CN107988913A (en) * | 2017-12-12 | 2018-05-04 | 中交公局第二工程有限公司 | A kind of bridge bilayer box beam upper former method for dismounting |
| CN108894513A (en) * | 2018-07-06 | 2018-11-27 | 廊坊凯博建设机械科技有限公司 | The interim locating support system of prefabricated panel and its construction method based on operation platform |
| CN108894513B (en) * | 2018-07-06 | 2020-08-14 | 廊坊凯博建设机械科技有限公司 | Prefabricated wallboard temporary positioning support system based on construction platform and construction method thereof |
| CN110029734A (en) * | 2019-05-15 | 2019-07-19 | 中铁建设集团有限公司 | A kind of erecting by overhang for jacking formwork system |
| CN110863648A (en) * | 2019-12-09 | 2020-03-06 | 中建七局第四建筑有限公司 | Super high-rise construction platform steel frame plank sheathing suspension |
| CN114775806A (en) * | 2022-05-31 | 2022-07-22 | 浙江中天恒筑钢构有限公司 | Wall body utilizing jacking net rack, upper concrete structure construction platform and method thereof |
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Application publication date: 20130821 |