CN105220769A - Large area bolt-ball net frame integral top lifting construction method - Google Patents
Large area bolt-ball net frame integral top lifting construction method Download PDFInfo
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- CN105220769A CN105220769A CN201410285230.7A CN201410285230A CN105220769A CN 105220769 A CN105220769 A CN 105220769A CN 201410285230 A CN201410285230 A CN 201410285230A CN 105220769 A CN105220769 A CN 105220769A
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- 238000010276 construction Methods 0.000 title claims abstract description 29
- 238000005259 measurement Methods 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 7
- 238000009434 installation Methods 0.000 claims abstract description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 39
- 239000010959 steel Substances 0.000 claims description 39
- 239000003921 oil Substances 0.000 claims description 19
- 239000000725 suspension Substances 0.000 claims description 9
- 230000005856 abnormality Effects 0.000 claims description 3
- 238000007596 consolidation process Methods 0.000 claims description 3
- 238000013461 design Methods 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 3
- 239000010720 hydraulic oil Substances 0.000 claims description 3
- 239000002689 soil Substances 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 239000002023 wood Substances 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229910001374 Invar Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
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Abstract
The present invention relates to a kind of large area bolt-ball net frame integral top lifting construction method, comprise the steps: one: determine assembled plan-position, smooth location, line setting; Two: installation on ground bolt-ball net frame; Three: be evenly arranged large-size net rack short distance lifting appliance at the upper support point of bolt-ball net frame; Four: at each jacking strong point place of bolt-ball net frame bottom, lifting-up support and hydraulic jack are installed; Five: keep the bolt-ball net frame supporting construction on all jacking strong points to be in same level position; Six: rack integral jacking difference measurement mechanism is installed in lifting-up support position; Seven: initial jacking; Eight: normal jacking; The present invention solves the problem of the overall initial jacking of rack, and each jack synchronism in integral jacking process, ensures that bolt-ball net frame can not cause skew because of unbalance stress.
Description
Technical field
The present invention relates to a kind of construction method of integral jacking, specifically large area bolt-ball net frame integral top lifting construction method.
Background technology
At present, the jack-up construction of ultra-large area bolt-ball net frame, traditional construction technology adopts the construction method of modular " four fulcrum rack integral jackings ", the method is to the measurement rising difference during rack integral jacking, main employing eye-observation and employing invar tape measurement after promoting, for post apart from intensive, the jacking of the stressed less rack of rod member is impracticable, conventional method is adopted not only in jacking process, easily to cause structural member and jack discontinuity, and easily cause the skew of rack, lower rich distortion, thus cause the problems such as rod member damage and rack displacement, affect construction quality, even schedule delays.
Summary of the invention
The present invention is intended to the defect overcoming prior art, a kind of large area bolt-ball net frame integral top lifting construction method is provided, solve the problem of the overall initial jacking of rack, and each jack synchronism in integral jacking process, ensure that bolt-ball net frame can not cause skew because of unbalance stress.
In order to solve the problems of the technologies described above, the present invention is achieved in that
A kind of large area bolt-ball net frame integral top lifting construction method, is characterized in that, comprise the steps:
Step one: determine assembled plan-position, smooth location, line setting, described plan-position is bolt-ball net frame orthography position in the horizontal plane;
Step 2: installation on ground bolt-ball net frame, by centre to both sides, starts assembled from top to bottom;
Step 3: be evenly arranged large-size net rack short distance lifting appliance at the upper support point of bolt-ball net frame; This large-size net rack short distance lifting appliance comprises top board, supporting leg, conduction chain and suspension ring; Described supporting leg is located at top board bottom surface, and supporting leg has three at least, arranges around shape in uniform ring; Supporting leg one end and top board bottom surface pinned connection, top board bottom surface central authorities are located at by suspension ring, and conduction chain is arranged in suspension ring;
Step 4: install lifting-up support and hydraulic jack at each jacking strong point place of bolt-ball net frame bottom; Described lifting-up support is the three-dimensional frame of a rectangle, described hydraulic jack bottom cover has a jack base, this jack base comprises a block plate, steel plate is welded with a three-dimensional frame, hydraulic jack bottom is placed on the steel plate in three-dimensional frame, and hydraulic jack top/bottom part and steel plate are bolted to connection; Described lifting-up support upper shelf has two support bars, and jack base is placed on two support bars;
Step 5: check whether the bolt-ball net frame supporting construction on all jacking strong points is in same level position with level gauge, if not, then by billet adjustment lifting-up support bottom level, makes it highly be consistent;
Step 6: install rack integral jacking difference measurement mechanism in lifting-up support position; This rack integral jacking difference measurement mechanism comprises steel disk chi, steel disk chi support, base, pole and horizontal mark post, described pole is vertical on base, pole is provided with slideway, horizontal mark post is connected with pole sliding up and down, described base is provided with steel disk chi support, this steel disk chi support is two pieces of risers vertically arranged, and riser has hole, and described steel disk chi to be vertical in steel disk chi support and to be connected by steel pin with steel disk chi support;
Step 7: initial jacking; Zero load debugging and band year debugging are carried out respectively to jack;
A, for guaranteeing the safety and stability of the formal lifting operation of bolt-ball net frame, bolt-ball net frame examination jacking must be carried out before formal jacking, by examination jacking, determine whether Jacking point top structure, bearing capacity of foundation soil, hydraulic power unit energy supply, lifting-up support meet normal jacking needs;
B, before examination jacking, first carry out manually pre-jacking, make bolt-ball net frame lower edge clear height 1 meter, with level gauge measure each Jacking point push up in advance after the discrepancy in elevation, guarantee that levelness controls in 5 millimeters, and adjust the height that each point all reaches 1 meter, need to carry out consolidation before doing this work, and bolster wood and steel plate and pad cross fix square steel beam; Before bolt-ball net frame jacking, guarantee that all jack are in same level position, the stressed need of bolt-ball net frame in lifting process are consistent and synchronous;
C, check bolt-ball net frame lower-chord panel point whether on its projection line, as deviation is greater than 20mm, jacking again after need adjusting;
Height bottom d, adjustment oil cylinder, ensure it substantially in same level position, positive and negative deviation must not more than 20mm;
E, make each cylinder force basically identical, and allow bolt-ball net frame ground base depart from; Locked cylinder, observes bolt-ball net frame after eight hours and whether ground base notes abnormalities, and without exception can continuation is constructed;
Step 8: normal jacking;
During bolt-ball net frame jacking, the hydraulic oil pump of each layout points starts simultaneously, after bolt-ball net frame integral jacking to certain space position, second layer lifting-up support is installed, first floor lifting-up support and second layer lifting-up support surrounding bolt are connected firmly, successively the oil cylinder of each hydraulic jack strong point is regained completely with Pump Control valve, jack base is made to depart from support bar, make second layer lifting-up support stressed, withdraw from support bar, put to the jack stand regained, second time lifting-up support top, start oil pump jacking make jack base and support bar stressed, after all jack strong points are completely stressed, primer fluid pressure oil pump starts second time jacking simultaneously, each jacking certain space height, repeat above-mentioned steps, by the jacking of bolt-ball net frame structural entity to factory building columns design height, every jacking certain distance in construction, repetition measurement all jack supporting-points absolute altitude.
Described large area bolt-ball net frame integral top lifting construction method, is characterized in that: described hydraulic jack, every four hydraulic jack are one group, and by an oil pump feed, each hydraulic jack, is equipped with one from carrying oil cylinder; Hydraulic jack impulse stroke piston rod is arranged the lock nut preventing from falling after rise during jacking.
Described large area bolt-ball net frame integral top lifting construction method, it is characterized in that: the top of described hydraulic jack is also overlapped a jack base, hydraulic jack top is placed in three-dimensional frame, and the upper end of jack base props up the node of bolt-ball net frame.
The invention has the beneficial effects as follows: construction is simple, easy to operate, efficiency of construction is high, work high above the ground risk reduces, effectively control the lower rich problem after the skew of rack and rack installation in position, this construction method is applicable to the integral jacking of the plate bolt-ball net frame of industry and civilian construction roof system and floor, ensure that the safety of jacking and stablize, have employed rack jacking and rise difference measurement mechanism, difference is risen when can observe rack jacking (lifting) operation at any time, in time the difference exceeding allowed band is adjusted, so not only can reduce rack and occur skew when jacking, the rod member more can stopping to cause because jacking is asynchronous damages and does over again, easy to operate, adopt the grid lifting-up support of level altitude, can ensure that when hydraulic jack oil return time rack is at sustained height.
Accompanying drawing explanation
Below in conjunction with drawings and embodiments, the present invention is described in further detail:
Structural representation when Fig. 1 is jacking;
Fig. 2 is the structural representation that hydraulic jack upper and lower overlaps when having jack base;
Fig. 3 is the structural representation of lifting-up support;
Fig. 4 is the structural representation of large-size net rack short distance lifting appliance;
Fig. 5 is the structural representation of rack integral jacking difference measurement mechanism;
The structural representation of bolt-ball net frame integral jacking when Fig. 6 is construction.
Detailed description of the invention
As shown in Figure 1: a kind of large area bolt-ball net frame integral top lifting construction method, comprises the steps:
Step one: determine assembled plan-position, smooth location, line setting, described plan-position is bolt-ball net frame orthography position in the horizontal plane;
Step 2: installation on ground bolt-ball net frame, by centre to both sides, starts assembled from top to bottom;
Step 3: be evenly arranged large-size net rack short distance lifting appliance at the upper support point of bolt-ball net frame; As shown in Figure 4: this large-size net rack short distance lifting appliance comprises top board 3, supporting leg 1, conduction chain 4 and suspension ring 2; Described supporting leg is located at top board bottom surface, and supporting leg has three at least, arranges around shape in uniform ring; Supporting leg one end and top board bottom surface pinned connection, top board bottom surface central authorities are located at by suspension ring, and conduction chain is arranged in suspension ring;
During use, according to required hoisting depth, select the length of suitable supporting leg; Be arranged on directly over grid node to be hoisted by the grouping of this device, three supporting legs and ground fixation, be connected conduction chain with rack; Pull conduction chain, drive rack vertically to rise.
Step 4: install lifting-up support and hydraulic jack 13 at each jacking strong point place of bolt-ball net frame bottom; Described lifting-up support 5 is the three-dimensional frame (as shown in Figure 3) of a rectangle, described hydraulic jack bottom cover has a jack base, as shown in Figure 2: this jack base comprises a block plate 14, steel plate is welded with a three-dimensional frame 15, hydraulic jack bottom is placed on the steel plate in three-dimensional frame, and hydraulic jack top/bottom part and steel plate are bolted to connection; Described lifting-up support upper shelf has two support bars 16, and jack base is placed on two support bars;
The top of hydraulic jack is also overlapped a jack base, and hydraulic jack top is placed in three-dimensional frame, and the upper end of jack base props up the node 17 of bolt-ball net frame;
Every four hydraulic jack are one group, and by an oil pump feed, each hydraulic jack, is equipped with one from carrying oil cylinder; Hydraulic jack impulse stroke piston rod is arranged the lock nut preventing from falling after rise during jacking.
Step 5: check whether the bolt-ball net frame supporting construction on all jacking strong points is in same level position with level gauge, if not, then by billet adjustment lifting-up support bottom level, makes it highly be consistent;
Step 6: install rack integral jacking difference measurement mechanism in lifting-up support position; As shown in Figure 5: this rack integral jacking difference measurement mechanism comprises steel disk chi 6, steel disk chi support 7, base 8, pole 9 and horizontal mark post 10, described pole is vertical on base, pole is provided with slideway 11, horizontal mark post is connected with pole sliding up and down, described base is provided with steel disk chi support, this steel disk chi support is two pieces of risers vertically arranged, and riser has hole, and described steel disk chi to be vertical in steel disk chi support and to be connected by steel pin 12 with steel disk chi support;
Step 7: initial jacking; Zero load debugging and band year debugging are carried out respectively to jack;
A, for guaranteeing the safety and stability of the formal lifting operation of bolt-ball net frame, bolt-ball net frame examination jacking must be carried out before formal jacking, by examination jacking, determine whether Jacking point top structure, bearing capacity of foundation soil, hydraulic power unit energy supply, lifting-up support meet normal jacking needs;
B, before examination jacking, first carry out manually pre-jacking, make bolt-ball net frame lower edge clear height 1 meter, with level gauge measure each Jacking point push up in advance after the discrepancy in elevation, guarantee that levelness controls in 5 millimeters, and adjust the height that each point all reaches 1 meter, need to carry out consolidation before doing this work, and bolster wood and steel plate and pad cross fix square steel beam; Before bolt-ball net frame jacking, guarantee that all jack are in same level position, the stressed need of bolt-ball net frame in lifting process are consistent and synchronous;
C, check bolt-ball net frame lower-chord panel point whether on its projection line, as deviation is greater than 20mm, jacking again after need adjusting;
Height bottom d, adjustment oil cylinder, ensure it substantially in same level position, positive and negative deviation must not more than 20mm;
E, make each cylinder force basically identical, and allow bolt-ball net frame ground base depart from; Locked cylinder, observes bolt-ball net frame after eight hours and whether ground base notes abnormalities, and without exception can continuation is constructed;
Step 8: normal jacking;
During bolt-ball net frame jacking, the hydraulic oil pump of each layout points starts simultaneously, after bolt-ball net frame integral jacking to certain space position, second layer lifting-up support is installed, first floor lifting-up support and second layer lifting-up support surrounding bolt are connected firmly, successively the oil cylinder of each hydraulic jack strong point is regained completely with Pump Control valve, jack base is made to depart from support bar, make second layer lifting-up support stressed, withdraw from support bar, put to the jack stand regained, second time lifting-up support top, start oil pump jacking make jack base and support bar stressed, after all jack strong points are completely stressed, primer fluid pressure oil pump starts second time jacking simultaneously, each jacking certain space height, repeat above-mentioned steps, by the jacking of bolt-ball net frame structural entity to factory building columns design height (as shown in Figure 6), every jacking certain distance in construction, repetition measurement all jack supporting-points absolute altitude.
Claims (3)
1. a large area bolt-ball net frame integral top lifting construction method, is characterized in that, comprise the steps:
Step one: determine assembled plan-position, smooth location, line setting, described plan-position is bolt-ball net frame orthography position in the horizontal plane;
Step 2: installation on ground bolt-ball net frame, by centre to both sides, starts assembled from top to bottom;
Step 3: be evenly arranged large-size net rack short distance lifting appliance at the upper support point of bolt-ball net frame; This large-size net rack short distance lifting appliance comprises top board, supporting leg, conduction chain and suspension ring; Described supporting leg is located at top board bottom surface, and supporting leg has three at least, arranges around shape in uniform ring; Supporting leg one end and top board bottom surface pinned connection, top board bottom surface central authorities are located at by suspension ring, and conduction chain is arranged in suspension ring;
Step 4: install lifting-up support and hydraulic jack at each jacking strong point place of bolt-ball net frame bottom; Described lifting-up support is the three-dimensional frame of a rectangle, described hydraulic jack bottom cover has a jack base, this jack base comprises a block plate, steel plate is welded with a three-dimensional frame, hydraulic jack bottom is placed on the steel plate in three-dimensional frame, and hydraulic jack top/bottom part and steel plate are bolted to connection; Described lifting-up support upper shelf has two support bars, and jack base is placed on two support bars;
Step 5: check whether the bolt-ball net frame supporting construction on all jacking strong points is in same level position with level gauge, if not, then by billet adjustment lifting-up support bottom level, makes it highly be consistent;
Step 6: install rack integral jacking difference measurement mechanism in lifting-up support position; This rack integral jacking difference measurement mechanism comprises steel disk chi, steel disk chi support, base, pole and horizontal mark post, described pole is vertical on base, pole is provided with slideway, horizontal mark post is connected with pole sliding up and down, described base is provided with steel disk chi support, this steel disk chi support is two pieces of risers vertically arranged, and riser has hole, and described steel disk chi to be vertical in steel disk chi support and to be connected by steel pin with steel disk chi support;
Step 7: initial jacking; Zero load debugging and band year debugging are carried out respectively to jack;
A, for guaranteeing the safety and stability of the formal lifting operation of bolt-ball net frame, bolt-ball net frame examination jacking must be carried out before formal jacking, by examination jacking, determine whether Jacking point top structure, bearing capacity of foundation soil, hydraulic power unit energy supply, lifting-up support meet normal jacking needs;
B, before examination jacking, first carry out manually pre-jacking, make bolt-ball net frame lower edge clear height 1 meter, with level gauge measure each Jacking point push up in advance after the discrepancy in elevation, guarantee that levelness controls in 5 millimeters, and adjust the height that each point all reaches 1 meter, need to carry out consolidation before doing this work, and bolster wood and steel plate and pad cross fix square steel beam; Before bolt-ball net frame jacking, guarantee that all jack are in same level position, the stressed need of bolt-ball net frame in lifting process are consistent and synchronous;
C, check bolt-ball net frame lower-chord panel point whether on its projection line, as deviation is greater than 20mm, jacking again after need adjusting;
Height bottom d, adjustment oil cylinder, ensure it substantially in same level position, positive and negative deviation must not more than 20mm;
E, make each cylinder force basically identical, and allow bolt-ball net frame ground base depart from; Locked cylinder, observes bolt-ball net frame after eight hours and whether ground base notes abnormalities, and without exception can continuation is constructed;
Step 8: normal jacking;
During bolt-ball net frame jacking, the hydraulic oil pump of each layout points starts simultaneously, after bolt-ball net frame integral jacking to certain space position, second layer lifting-up support is installed, first floor lifting-up support and second layer lifting-up support surrounding bolt are connected firmly, successively the oil cylinder of each hydraulic jack strong point is regained completely with Pump Control valve, jack base is made to depart from support bar, make second layer lifting-up support stressed, withdraw from support bar, put to the jack stand regained, second time lifting-up support top, start oil pump jacking make jack base and support bar stressed, after all jack strong points are completely stressed, primer fluid pressure oil pump starts second time jacking simultaneously, each jacking certain space height, repeat above-mentioned steps, by the jacking of bolt-ball net frame structural entity to factory building columns design height, every jacking certain distance in construction, repetition measurement all jack supporting-points absolute altitude.
2. large area bolt-ball net frame integral top lifting construction method according to claim 1, is characterized in that: described hydraulic jack, and every four hydraulic jack are one group, and by an oil pump feed, each hydraulic jack, is equipped with one from carrying oil cylinder; Hydraulic jack impulse stroke piston rod is arranged the lock nut preventing from falling after rise during jacking.
3. large area bolt-ball net frame integral top lifting construction method according to claim 1 and 2, it is characterized in that: the top of described hydraulic jack is also overlapped a jack base, hydraulic jack top is placed in three-dimensional frame, and the upper end of jack base props up the node of bolt-ball net frame.
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107060348A (en) * | 2017-06-16 | 2017-08-18 | 中国五冶集团有限公司 | A kind of jacking adjusting apparatus for high-altitude wire frame |
| CN107489199A (en) * | 2017-08-31 | 2017-12-19 | 中建七局安装工程有限公司 | Space Reticulated dome expands lifting construction method by ring |
| CN108917730A (en) * | 2018-05-17 | 2018-11-30 | 中国十九冶集团有限公司 | Synovial membrane elevation real-time monitoring device and device installation method |
| CN109138173A (en) * | 2018-10-24 | 2019-01-04 | 浙江精工钢结构集团有限公司 | A kind of top supernumerary segment hydraulic lifting rapid constructing method |
| CN109736445A (en) * | 2019-02-28 | 2019-05-10 | 北京市第三建筑工程有限公司 | Multi-storey steel structure rack mounting bracket automatic lifting connects circulation jacking apparatus |
| CN110284600A (en) * | 2019-07-10 | 2019-09-27 | 贵州建工集团第二建筑工程有限责任公司 | A kind of longspan structure rack hydraulic lifting construction method of installation |
| CN110792265A (en) * | 2019-10-31 | 2020-02-14 | 中建六局第三建筑工程有限公司 | Integral synchronous jacking equipment for large-span combined type overweight eccentric slope angle steel structure |
| CN110805138A (en) * | 2019-11-29 | 2020-02-18 | 中国二十冶集团有限公司 | Construction method for jacking two sides of large-span net rack |
| CN110847616A (en) * | 2019-11-27 | 2020-02-28 | 山东国舜建设集团有限公司 | Method for mounting large-volume steel frame flue |
| CN111980165A (en) * | 2020-08-07 | 2020-11-24 | 中建八局第二建设有限公司 | Large-span net rack external-expanding splicing integral jacking construction method |
| CN112412036A (en) * | 2020-10-29 | 2021-02-26 | 中铁华铁工程设计集团有限公司 | Net rack installation construction method and net rack lifting device |
| CN113653333A (en) * | 2021-08-25 | 2021-11-16 | 中亿丰建设集团股份有限公司 | Integral pushing construction method for large-area net rack |
| CN118007971A (en) * | 2024-04-10 | 2024-05-10 | 中建材(合肥)钢构科技有限公司 | Welding ball net frame jacking construction installation device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107060348A (en) * | 2017-06-16 | 2017-08-18 | 中国五冶集团有限公司 | A kind of jacking adjusting apparatus for high-altitude wire frame |
| CN107489199A (en) * | 2017-08-31 | 2017-12-19 | 中建七局安装工程有限公司 | Space Reticulated dome expands lifting construction method by ring |
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| CN108917730A (en) * | 2018-05-17 | 2018-11-30 | 中国十九冶集团有限公司 | Synovial membrane elevation real-time monitoring device and device installation method |
| CN109138173A (en) * | 2018-10-24 | 2019-01-04 | 浙江精工钢结构集团有限公司 | A kind of top supernumerary segment hydraulic lifting rapid constructing method |
| CN109736445A (en) * | 2019-02-28 | 2019-05-10 | 北京市第三建筑工程有限公司 | Multi-storey steel structure rack mounting bracket automatic lifting connects circulation jacking apparatus |
| CN109736445B (en) * | 2019-02-28 | 2024-04-12 | 北京市第三建筑工程有限公司 | Automatic lifting continuous circulation jacking device for multi-layer steel structure net rack mounting bracket |
| CN110284600A (en) * | 2019-07-10 | 2019-09-27 | 贵州建工集团第二建筑工程有限责任公司 | A kind of longspan structure rack hydraulic lifting construction method of installation |
| CN110792265B (en) * | 2019-10-31 | 2021-08-06 | 中建六局安装工程有限公司 | Integral synchronous jacking equipment for large-span combined type overweight eccentric slope angle steel structure |
| CN110792265A (en) * | 2019-10-31 | 2020-02-14 | 中建六局第三建筑工程有限公司 | Integral synchronous jacking equipment for large-span combined type overweight eccentric slope angle steel structure |
| CN110847616A (en) * | 2019-11-27 | 2020-02-28 | 山东国舜建设集团有限公司 | Method for mounting large-volume steel frame flue |
| CN110805138A (en) * | 2019-11-29 | 2020-02-18 | 中国二十冶集团有限公司 | Construction method for jacking two sides of large-span net rack |
| CN111980165A (en) * | 2020-08-07 | 2020-11-24 | 中建八局第二建设有限公司 | Large-span net rack external-expanding splicing integral jacking construction method |
| CN112412036A (en) * | 2020-10-29 | 2021-02-26 | 中铁华铁工程设计集团有限公司 | Net rack installation construction method and net rack lifting device |
| CN113653333A (en) * | 2021-08-25 | 2021-11-16 | 中亿丰建设集团股份有限公司 | Integral pushing construction method for large-area net rack |
| CN118007971A (en) * | 2024-04-10 | 2024-05-10 | 中建材(合肥)钢构科技有限公司 | Welding ball net frame jacking construction installation device |
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