CN102277900B - Sectional-stacking jacking mounting method of vase-shaped space steel structure - Google Patents
Sectional-stacking jacking mounting method of vase-shaped space steel structure Download PDFInfo
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- CN102277900B CN102277900B CN 201110116318 CN201110116318A CN102277900B CN 102277900 B CN102277900 B CN 102277900B CN 201110116318 CN201110116318 CN 201110116318 CN 201110116318 A CN201110116318 A CN 201110116318A CN 102277900 B CN102277900 B CN 102277900B
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Abstract
The invention discloses a sectional-stacking jacking mounting method of a vase-shaped space steel structure. The method comprises the following steps of: dividing construction sections and adjustment sections according to the abrupt change positions of the cross section of the vase-shaped space steel structure; specifying the initial shrinkage abrupt change position to the elevation of a jacking construction platform according to the bottom-to-top cross section dimension of the vase-shaped space steel structure; mounting the construction sections under the elevation of the jacking construction platform; erecting a jacking construction platform supporting system, an reinforcement region and a surrounding-protecting bracket, and mounting the jacking construction platform; mounting a jacking device on the jacking construction platform; employing a synchronous control system to perform control, jacking one by one and mounting by stacking a plurality of construction sections above the elevation of the jacking construction platform by means of a jacking device; and in the mounting process, when every construction section is jacked, mounting one adjustment section between the jacked construction section and the construction section to be jacked until the whole vase-shaped space steel structure is mounted and formed. No other large-scale assistant hoisting appliance is needed to be mounted, so that the work amount and difficulty of construction assistant measures are reduced, the construction safety is guaranteed and the cost is saved.
Description
Technical field
The present invention relates to a kind of Aguarius shape spatial steel structure segmentation accumulation jacking mounting method, specifically relate to a kind of employing synchronous control technique, the spatial steel structure of Aguarius profile is carried out the job practices of segmentation accumulation jacking installation.Belong to the engineering construction technology field.
Background technology
Along with the development of China's economic construction and making rapid progress of mentality of designing and method, the steel work that some architectural images are peculiar is devised, construction profile is that tooth relic of Buddha hall, Wenshang, the Shandong main building of Aguarius shape is exactly a member in numerous new steel structure systems, the Aguarius shape steel work that this structure section change in size of How to choose is large and setting height(from bottom) is high is the technical barrier that is always perplexing construction technical staff.
Structure is more along the steel work type that the short transverse cross dimensions changes, and comprises the steel work Antenna mast that is installed in high level or super highrise building top etc.Installation for the steel work Antenna mast, as in the installation process of Shanghai Oriental Pearl tower, Guangzhou TV transmission tower and Nanjing Zi Feng mansion roof aerial mast, consider that this class formation cross dimensions highly compares too little with it, be leptosomatic steel work mast, if adopt the jacking mounting method easily to cause erection stage structural entity unstability.Therefore, all will adopt large-scale loop wheel machine to cooperate the larger hypomere steel work of cross dimensions is installed along the steel mast segmentation of short transverse section gradual change during practice of construction, then adopt the Synchronous lifting technology that the epimere steel work is installed.This method adopts the method to install and seems comparatively applicable, economical for the slender type steel work mast of superelevation.But the Aguarius shape spatial steel structure larger to cross dimensions, its top light section sections height is less, lightweight, if employing lift method, must finish and after its top makes hoist point, can construct until the hypomere Steel Structure Installation, increased on the one hand the working measure expense that hoist point is made, cross dimensions is larger on the other hand hypomere Steel Structure Installation needs the auxiliary and higher construction maintenance support of large-scale loop wheel machine, and not only construction cost increases but also taken long construction period.Therefore, for Aguarius shape spatial steel structure, the job practices that adopts hypomere assembling, epimere to promote is also uneconomical.
For the larger Aguarius shape spatial steel structure of cross dimensions, can adopt the high altitude bulk method to install, but in installation process, consider the requirement of setting height(from bottom), should set up wider support to satisfy the ratio of width to height requirement that guarantees the support resistance to overturning, this method will take a large amount of timbering materials for the Aguarius shape spatial steel structure of superelevation, increase construction cost, and safe, the stability of installation process medium-height trestle are difficult to obtain assurance.Simultaneously, because the high altitude bulk method needs the auxiliary lifting components of large-scale loop wheel machine, can increase the working measure expense equally.In addition, adopt the unloading phase of high altitude bulk method after the structure installation to be difficult for realizing the Multipoint synchronous Unloading Control, affect the safety of structure.
In addition, for the larger Aguarius shape spatial steel structure of cross dimensions, also can adopt by the ring upside-down method of hull-section construction and carry out the installation of steel work.This method is from top to bottom made steel work by ring after operation platform is arranged Lifting Equipment, whenever do a ring jacking once, and fibrous root is adjusted the Lifting Equipment position and changed Lifting Equipment according to jacking weight according to the cross dimensions of every ring.But when Aguarius shape spatial steel structure changes greatly along the cross dimensions of short transverse, need repeatedly adjust position and the Lifting Equipment of Jacking point in the jacking process, certainly will cause being multiplied of operation platform lower support material and the amount of labour, cause supporting flooring or the working measure expense increasing of ground reinforcement and the prolongation of construction period of backing material.Simultaneously, structural focus constantly changes, and need constantly adjust or set up cable wind rope by the ring assembly unit along with steel work is top-down, to guarantee the safety of structure in the jacking process.
Summary of the invention
Technical problem:That cross dimensions is installed is large and when changing large Aguarius shape spatial steel structure along the short transverse cross dimensions in order to solve existing method, the high-altitude mounting technique difficult problems such as the adjustment that needs the auxiliary lifting components of large-scale loop wheel machine, sets up higher construction and installation or go along with sb. to guard him Lifting Equipment in disposable top lifting height that support, structure jacking install, the installation process often, the overhead welding amount is large, the invention provides a kind of segmentation accumulation jacking mounting method of Aguarius shape spatial steel structure, can reduce the technical difficulty in the installation process, improve the safety of work progress, save Construction Cost.
Technical scheme:A kind of segmentation accumulation jacking mounting method of Aguarius shape spatial steel structure comprises the steps:
(1) according to the facade shape of Aguarius shape spatial steel structure, take structure section sudden change position or allow top lifting height as the segmentation foundation, Aguarius shape spatial steel structure is divided into construction section and regulates section along short transverse; Aguarius shape spatial steel structure shrinks sudden change first along the bottom-up direction cross dimensions of height, and to sentence down be the first construction section, by the first construction section up, section between per two structure sections sudden change position is a construction section, is provided with one between per two construction sections and regulates section;
(2) (2) height of selecting Aguarius shape spatial steel structure to shrink first sudden change place along the bottom-up direction cross dimensions of height is the absolute altitude of jacking construction platform, and strengthens the district according to working load, steel work weight, Jacking point layout and load design jacking construction platform, jacking construction platform support system, Jacking point lower support system;
(3) utilize civil engineering tower crane auxiliary hanging assembling structure member, be positioned at the following construction section of jacking construction platform absolute altitude;
(4) set up that jacking construction platform support system, Jacking point lower support system are strengthened the district, support is gone along with sb. to guard him in construction, and the fabrication and installation jacking construction platform;
(5) the Jacking point height that foundation pre-sets on jacking construction platform is installed lift-up device;
(6) adopt synchronously piecemeal jacking of lift-up device, accumulation that the above a plurality of construction sections of jacking construction platform absolute altitude are installed, after construction section of every jacking puts in place in the accumulation jacking installation process, itself and the next adjusting section for the treatment of between the jacking construction section are installed, are shaped until whole Aguarius shape spatial steel structure is installed;
(7) remove jacking construction platform, jacking construction platform support system, Jacking point lower support system reinforcement district and construction and go along with sb. to guard him support.
The segmentation accumulation jacking mounting method of aforesaid Aguarius shape spatial steel structure, the installation of described a plurality of construction sections is from top to bottom, installs successively from inside to outside; The described installation of regulating section is after construction section is installed, with the construction section bottom accordingly the section of adjusting be welded on below the mounted construction section.
The segmentation of aforesaid Aguarius shape spatial steel structure accumulation jacking mounting method in step (6) accumulation jacking installation process, in the jacking process of step (6), is gone along with sb. to guard him in construction section and construction and to be connected cable wind rope between the support.
The segmentation accumulation jacking mounting method of aforesaid Aguarius shape spatial steel structure in step (6) accumulation jacking installation process, with increasing of top lifting height, is set up column in the bottom of lift-up device.
The segmentation accumulation jacking mounting method of aforesaid Aguarius shape spatial steel structure adopts the synchronously piecemeal jacking of synchronous control system control lift-up device in step (6).
Beneficial effect:The present invention is to carry out cross dimensions large and when changing large Aguarius shape spatial steel structure and install along the short transverse cross dimensions, can utilize civil engineering tower crane auxiliary hanging assembling structure member or set up temporary construction and promote pylon, need not to install in addition large-scale auxiliary hanging device, reduce construction and installation or gone along with sb. to guard him scaffolding height and the disposable top lifting height of support, reduced adjustment number of times and the overhead welding amount of Lifting Equipment in the installation process, not only reduced the engineering quantity of construction ancillary method, saved Construction Cost, and reduced the difficulty of high-altitude installation, guaranteed the safety in the work progress.
Description of drawings
Fig. 1 is Aguarius shape spatial steel structure construction section of the present invention and regulates the section facade and divide schematic diagram;
Fig. 2 is the segmentation accumulation jacking mounting method operational flowchart of Aguarius shape spatial steel structure of the present invention;
Fig. 3 a is the following construction section installation of jacking construction platform absolute altitude of the present invention, jack-up construction operation platform support system, constructs and go along with sb. to guard him the elevational schematic view of support and jacking construction platform fabrication and installation;
Fig. 3 b is the fabrication and installation elevational schematic view of the above construction section of jacking construction platform absolute altitude of the present invention;
Fig. 3 c is the jacking process schematic diagram of Aguarius shape spatial steel structure innermost ring construction section of the present invention;
Fig. 3 d is that Aguarius shape spatial steel structure innermost ring construction section of the present invention jacking puts in place and installs and regulate a unloading work progress schematic diagram after the section;
Fig. 3 e is the jacking process schematic diagram of Aguarius shape spatial steel structure secondary ring construction section of the present invention;
Fig. 3 f is that Aguarius shape spatial steel structure secondary ring construction section of the present invention jacking puts in place and installs and regulate a unloading work progress schematic diagram after the section.
The explanation of main mark in the accompanying drawing: construction section 101, regulate section 201, construction section 102, regulate section 202, construction section 103, construction section 104, structural core cylinder 7, steel work bottom flooring 8, jacking construction platform 9, jacking construction platform support system 10, Jacking point lower support system are strengthened district 11, support 12, cable wind rope 301, cable wind rope 302, lift-up device 401, lift-up device 402, shaped steel lattice column 501, shaped steel lattice column 502 are gone along with sb. to guard him in construction.
The specific embodiment
The present invention is large and change large design feature along the short transverse cross dimensions according to Aguarius shape spatial steel structure cross dimensions, takes the high-altitude of the job practices implementation structure that sectional making, accumulation jacking install to install without loop wheel machine is auxiliary.The present invention is described in more detail below in conjunction with drawings and Examples.
Fig. 1 is Aguarius shape spatial steel structure construction section of the present invention and regulates the section facade and divide schematic diagram, Fig. 2 is the operational flowchart of Aguarius shape spatial steel structure segmentation accumulation jacking mounting method of the present invention, Fig. 3 a is that the following construction section of jacking construction platform absolute altitude of the present invention is installed, the jacking construction platform support system, the elevational schematic view of support and jacking construction platform fabrication and installation is gone along with sb. to guard him in construction, Fig. 3 b is the fabrication and installation elevational schematic view of the above construction section of jacking construction platform absolute altitude of the present invention, Fig. 3 c is the jacking process schematic diagram of Aguarius shape spatial steel structure innermost ring construction section of the present invention, Fig. 3 d is that Aguarius shape spatial steel structure innermost ring construction section of the present invention jacking puts in place and installs and regulate a unloading work progress schematic diagram after the section, Fig. 3 e is the jacking process schematic diagram of Aguarius shape spatial steel structure secondary ring construction section of the present invention, and Fig. 3 f is that Aguarius shape spatial steel structure secondary ring construction section of the present invention jacking puts in place and installs and regulate a unloading work progress schematic diagram after the section.
Shown in Fig. 3 f, the overall height 52m of the present embodiment Aguarius shape spatial steel structure, max architecture section radius 27m, minimal structure section radius 10m.
Aguarius shape spatial steel structure segmentation accumulation jacking mounting method comprises the steps:
Step 1: along short transverse abrupt change of cross section position and permission top lifting height, Aguarius shape spatial steel structure facade is divided into construction section 101, construction section 102, construction section 103, construction section 104 and regulates section 201, adjusting section 202 according to Aguarius shape spatial steel structure.Wherein, construction section carries out segmentation according to Aguarius shape spatial steel structure along the abrupt change of cross section position of short transverse; Regulating section is that Aguarius shape spatial steel structure is located the join domain between the two adjacent ring beams along short transverse abrupt change of cross section position.Aguarius shape spatial steel structure shrinks sudden change first along the bottom-up direction cross dimensions of height, and to sentence down be the first construction section, by the first construction section up, section between per two structure sections sudden change position is a construction section, is provided with one between per two construction sections and regulates section.
Step 2: according to Aguarius shape spatial steel structure along short transverse section variation rule, select Aguarius shape spatial steel structure to shrink first sudden change place along the short transverse cross dimensions, be the height of the end face absolute altitude place design jacking construction platform 9 of construction section 104, and carry out the design in jacking construction platform 9, jacking construction platform support system 10, Jacking point lower support system reinforcement district 11 according to working load, steel work weight, Jacking point layout and load.
Step 3: the construction section 104 of jacking construction platform 9 absolute altitude bottoms first is installed, and and the connecting elements of 7 in structural core cylinder.
Step 4: set up jacking construction platform support system 10, Jacking point lower support system reinforcement district 11 and construction at steel work bottom flooring 8 end faces and go along with sb. to guard him support 12.
Step 5: at jacking construction platform support system 10 end face fabrication and installation jacking construction platforms 9, and according to the Jacking point layout requirement of construction section 101, construction section 102, the lift-up device of construction section 101 and construction section 102 is in place.
Step 6: at jacking construction platform 9 welding assembly unit construction sections 101,102,103, begin to install successively downwards from the construction section at top;
Step 7: the cable wind rope 301 of connection section 101 starts the construction section 101 of lift-up device 401 jacking innermost rings to assigned address.In the jacking process, with the continuous variation of top lifting height, the shaped steel lattice column 501 of each Jacking point is set up in segmentation, guarantee construction section 101 can jacking to drafting the absolute altitude place.
Step 8: after jacking construction section 101 puts, tightens cable wind rope 301 in place, the adjusting section 201 between welding assembly unit construction section 101 and the construction section 102.After the installation, the lift-up device 401 of unloading construction section 101, and dismantle piecemeal shaped steel lattice column 501.
Step 9: loosen cable wind rope 301, behind the cable wind rope 302 of connection section 102, start lift-up device 402 jacking construction sections 102 to drafting the absolute altitude place.In the jacking process, with the continuous variation of top lifting height, the shaped steel lattice column 502 of each Jacking point is set up in segmentation equally, guarantees that construction section 102 jackings are to drafting the absolute altitude place.
Step 10: jacking construction section 102 after draft absolute altitude, tighten cable wind rope 301 and cable wind rope 302 after, the adjusting section 202 that welding assembly unit construction section 102 and construction section are 103.After the installation, the lift-up device 402 of unloading construction section 102, and dismantle piecemeal shaped steel lattice column 502.
Step 11: after structure is installed and is shaped, remove jacking construction platform 9, jacking construction platform support system 10, Jacking point lower support system reinforcement district 11 and construction and go along with sb. to guard him support 12.
Claims (4)
1. the segmentation of Aguarius shape spatial steel structure accumulation jacking mounting method comprises the steps:
(1) according to the facade shape of Aguarius shape spatial steel structure, take structure section sudden change position or allow top lifting height as the segmentation foundation, Aguarius shape spatial steel structure is divided into construction section and regulates section along short transverse; Aguarius shape spatial steel structure shrinks sudden change first along the bottom-up direction cross dimensions of height, and to sentence down be the first construction section, by the first construction section up, section between per two structure sections sudden change position is a construction section, be provided with one between per two construction sections and regulate section, (2) height of selecting Aguarius shape spatial steel structure to shrink first sudden change place along the bottom-up direction cross dimensions of height is the absolute altitude of jacking construction platform, and according to working load, steel work weight, Jacking point layout and load design jacking construction platform, the jacking construction platform support system, Jacking point lower support system is strengthened the district;
(3) utilize civil engineering tower crane auxiliary hanging assembling structure member, be positioned at the first following construction section of jacking construction platform absolute altitude;
(4) set up that jacking construction platform support system, Jacking point lower support system are strengthened the district, support is gone along with sb. to guard him in construction, and the fabrication and installation jacking construction platform;
(5) the Jacking point height that foundation pre-sets on jacking construction platform is installed lift-up device;
(6) adopt synchronously piecemeal jacking of lift-up device, accumulation that the above a plurality of construction sections of jacking construction platform absolute altitude are installed, begin to install successively downwards from the construction section at top, after construction section of every jacking puts in place in the accumulation jacking installation process, itself and the next adjusting section for the treatment of between the jacking construction section are installed, are shaped until whole Aguarius shape spatial steel structure is installed;
(7) remove jacking construction platform, jacking construction platform support system, Jacking point lower support system reinforcement district and construction and go along with sb. to guard him support;
Described construction section carries out segmentation according to Aguarius shape spatial steel structure along the abrupt change of cross section position of short transverse; Regulating section is that Aguarius shape spatial steel structure is located the join domain between the two adjacent ring beams along short transverse abrupt change of cross section position;
The installation of described a plurality of construction sections is from top to bottom, installs successively from inside to outside; The described installation of regulating section is after construction section is installed, with the construction section bottom accordingly the section of adjusting be welded on below the mounted construction section.
2. the segmentation of Aguarius shape spatial steel structure according to claim 1 accumulation jacking mounting method is characterized in that in step (6) accumulation jacking installation process, goes along with sb. to guard him in construction section and construction to be connected cable wind rope between the support.
3. the segmentation of Aguarius shape spatial steel structure according to claim 1 accumulation jacking mounting method is characterized in that with increasing of top lifting height, setting up column in the bottom of lift-up device in step (6) accumulation jacking installation process.
4. the segmentation of Aguarius shape spatial steel structure according to claim 1 accumulation jacking mounting method is characterized in that adopting the synchronously piecemeal jacking of synchronous control system control lift-up device in step (6).
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| CN106078195B (en) * | 2016-06-27 | 2018-07-06 | 宝鸡石油机械有限责任公司 | The assemble method of case block formula pedestal |
| CN106193780A (en) * | 2016-07-30 | 2016-12-07 | 刘继宏 | A kind of overall installation method of segmentation highrise steel structure building |
| CN106836507A (en) * | 2016-12-22 | 2017-06-13 | 浙江精工钢结构集团有限公司 | A kind of Single Layer Sphere Grids shell structure contrary sequence method accumulation jack-up construction method |
| CN106760712A (en) * | 2017-01-20 | 2017-05-31 | 华电重工股份有限公司 | A kind of jacking installation method of steel structure cooling tower |
| CN106759924A (en) * | 2017-01-20 | 2017-05-31 | 华电重工股份有限公司 | A kind of lifting installation method of steel structure cooling tower |
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| CN101139821A (en) * | 2007-10-16 | 2008-03-12 | 中铁大桥局集团第四工程有限公司 | Method and system for erecting steel trusses by stay cable auxiliary complete cantilever |
| CN201605528U (en) * | 2010-03-03 | 2010-10-13 | 杨宏量 | Bridge pier column for installing steel-structure bent cap |
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| JP2576035B2 (en) * | 1993-05-14 | 1997-01-29 | 三菱重工業株式会社 | Zone module construction method for steel structure construction |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101139821A (en) * | 2007-10-16 | 2008-03-12 | 中铁大桥局集团第四工程有限公司 | Method and system for erecting steel trusses by stay cable auxiliary complete cantilever |
| CN201605528U (en) * | 2010-03-03 | 2010-10-13 | 杨宏量 | Bridge pier column for installing steel-structure bent cap |
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Effective date of registration: 20140415 Address after: 211100 Nanjing City, Jiangning Province, West Road, Buddha District, No. 8 Patentee after: HOHAI University Patentee after: CHINA MCC20 GROUP Corp.,Ltd. Address before: 211100 Nanjing City, Jiangning Province, West Road, Buddha District, No. 8 Patentee before: HOHAI University |