CN109235902A - Positive quadrangular pyramid bolt-ball net frame multi-point support high-altitude dissipates splicing method - Google Patents

Positive quadrangular pyramid bolt-ball net frame multi-point support high-altitude dissipates splicing method Download PDF

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Publication number
CN109235902A
CN109235902A CN201811124155.0A CN201811124155A CN109235902A CN 109235902 A CN109235902 A CN 109235902A CN 201811124155 A CN201811124155 A CN 201811124155A CN 109235902 A CN109235902 A CN 109235902A
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CN
China
Prior art keywords
rack
altitude
installation
dissipates
support
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Pending
Application number
CN201811124155.0A
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Chinese (zh)
Inventor
赵云龙
夏远哲
钱焕
曹星华
汪晓阳
张朝
邢晓宇
杨斐
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China Construction Science and Industry Corp Ltd
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China Construction Steel Structure Corp Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by China Construction Steel Structure Corp Ltd filed Critical China Construction Steel Structure Corp Ltd
Priority to CN201811124155.0A priority Critical patent/CN109235902A/en
Publication of CN109235902A publication Critical patent/CN109235902A/en
Pending legal-status Critical Current

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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/14Conveying or assembling building elements

Abstract

The invention discloses a kind of positive quadrangular pyramid bolt-ball net frame multi-point support high-altitudes to dissipate splicing method, and the starting frame of rack is dissipated using ground is combined into small lifting elements lifting;Frame start to walk after the installation is completed, rest part is dissipated using high-altitude spells;High-altitude carries out accepting analysis by MIDAS before dissipating spelling to rack line mould, finds out the possible biggish place of deformation during assembly and support is arranged, this supported design is at the structure that can be adjusted at any time absolute altitude.The Construction of The Grids method of spelling+multi-point support is dissipated using starting frame piecemeal promotion+rack high-altitude, the grid structure installation question of very good solution small area, small tonnage, for the space grid structure for having broad based growth prospect, it is able to satisfy cost efficiency, high quality high accuracy positioning requirement, suitable for the small light-weight grid structure system of most of areas.

Description

Positive quadrangular pyramid bolt-ball net frame multi-point support high-altitude dissipates splicing method
Technical field
The present invention relates to a kind of grid structures to dissipate splicing method more particularly to a kind of positive quadrangular pyramid bolt-ball net frame multi-point support High-altitude dissipates splicing method.
Background technique
Grid structure is the network of flat plate framed structure type, has the characteristic of member structure and shell structure concurrently, reasonable stress, Covering span is big, has been a kind of quite by domestic and international concern, space knot with fastest developing speed, having broad based growth prospect since half a century Structure.Grid structure has graceful architectural image, and either architectural plane, shape and body can be to designer adequately to create Make freely.
As shown in Figure 1, certain area B of project caucus area of International Exhibition Centre megaron layer Steel Structure rack is positive and puts Quadrangular pyramid grid structure with bolt-sphere joints, net rack support are lower edge multicolumn dot point, and rack axial dimension is 108m*67.867m, covering Area 5993m2, grid structure look for slope, and the gradient 5%, with a thickness of 1.725m-4.425m, rack moiety by weight is 168.5 tons, net Frame is mainly made of top boom, lower boom, brace and support.
Megaron roof grid structure structural steelwork is the key job of entire engineering construction, its time duration direct shadow The duration progress for ringing entire engineering, is the most important thing of entire engineering, it is necessary to be guaranteed.According to field condition and construction Difficulties Analysis, the construction period, technical quality, construction safety, in terms of comprehensively consider, how to select one most Excellent Construction of The Grids method is emphasis.
The embodiment of the prior art has:
1. aerial sliding methed
Aerial sliding methed refers to that the unit truss of the slitting single sliding methed on sliding rail set in advance splices to design position Integral installation method.This bar element can be hung on bracket after ground is combined into crane, in capacity of equipment deficiency Or in the presence of other factors, it is also possible to which smallest assembled rigid unit even loose mail is combined into bar element on installation at high altitude platform.High-altitude bracket It is generally located in building one end, the bar element of rack slides to the other end by one end when sliding, but such method is limited by place System, cannot fit entirely into the rack installation of this engineering.
2. piecemeal installs overhead connection method
It is in bulk using piecemeal on the ground, docking when being lifted using lifting means or large lifting equipment to designed elevation, It is allowed to integral.But such method is limited by place, cannot fit entirely into the rack installation of this engineering, outside arch structure Region is enclosed using this mode.
3. the method integrally promoted
It assembles using on ground, is lifted by crane with multiple groups dead man, gradually spelled to all around diffusion when being promoted and arriving different absolute altitude layers It connects, it is whole to be promoted, until it is in place to fall into support after designed elevation.Such method, can be allowed in lifting process other process intert into Row, but this engineering rack overlay area lower part is 130mm thickness concrete structural slab, and support construction influence is arranged at lower part, does not have Integral assembling condition, and the load-bearing capacity of floor has to pass through calculating and by just can be carried out construction after being expounded through peer review.
4. Assembly in pieces at height
The assembly of starting region first is carried out in side, since all components of bolt-ball net frame all press Design Requirement Drawing in producer It shapes, scene need only be assembled, and according to structure when assembled, rack first falls into support and fixes, and rack is divided into several dissipate Unit is spelled, is gradually extended forward using truck crane along support minimum span direction and is extended, block-by-block is assembled, the assembled axis of every extension Line positions an axis rack.Such construction method is quick, expense is low, does not also influence on building structure stress, but low efficiency.
Summary of the invention
The object of the present invention is to provide a kind of positive quadrangular pyramid bolt-ball net frame multi-point support high-altitudes to dissipate splicing method.
The purpose of the present invention is what is be achieved through the following technical solutions:
Positive quadrangular pyramid bolt-ball net frame multi-point support high-altitude of the invention dissipates splicing method, comprising steps of
A, the starting frame of rack is dissipated using ground is combined into small lifting elements lifting;
B, after the installation is completed, rest part is dissipated using high-altitude spells starting frame;
Before the step B, firstly, carrying out accepting analysis to rack line mould by MIDAS, finds out and deformed during assembly Possible biggish place setting support, this supported design is at the structure that can be adjusted at any time absolute altitude.
As seen from the above technical solution provided by the invention, positive quadrangular pyramid bolt net provided in an embodiment of the present invention Frame multi-point support high-altitude dissipates splicing method, and the Construction of The Grids side of spelling+multi-point support is dissipated using starting frame piecemeal promotion+rack high-altitude Method, the grid structure installation question of very good solution small area, small tonnage, for the space net rack for having broad based growth prospect Structure is able to satisfy cost efficiency, high quality high accuracy positioning requirement, suitable for the small light-weight grid structure body of most of areas System.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of certain International Exhibition Centre's megaron grid structure.
Fig. 2 is that rack dissipates spelling plan view (one) in the embodiment of the present invention.
Fig. 3 is that (each standard block is hung Plays of embodiment of the present invention smallest assembled rigid unit schematic diagram with the suspender belt not less than 1t Dress).
Fig. 4 is that rack dissipates spelling plan view (two) in the embodiment of the present invention.
Specific embodiment
The embodiment of the present invention will be described in further detail below.What is be not described in detail in the embodiment of the present invention is interior Appearance belongs to the prior art well known to professional and technical personnel in the field.
Positive quadrangular pyramid bolt-ball net frame multi-point support high-altitude of the invention dissipates splicing method, preferable specific embodiment It is:
Comprising steps of
A, the starting frame of rack is dissipated using ground is combined into small lifting elements lifting;
B, after the installation is completed, rest part is dissipated using high-altitude spells starting frame;
Before the step B, firstly, carrying out accepting analysis to rack line mould by MIDAS, finds out and deformed during assembly Possible biggish place setting support, this supported design is at the structure that can be adjusted at any time absolute altitude.
In the step A, first by the starting frame of rack after installation on ground is at 6 pieces, lifted using truck crane to rack top Portion designated position checks errorless rear and both ends support welding, fixes.
In the step B, assembly is pushed ahead simultaneously using a wide range of, from mounted starting frame, up direction is assembled, Sequentially are as follows: to one grid of extension, axis first installs rack and winds up from left to right.
The step B is specifically included:
First assemble cell node on the ground, every cell node includes four rod pieces of a steel ball, using tower crane or Self-control lifting equipment is hung to cell node in the air in place, and installer is sitting on node, on high-strength bolt alignment steel ball It after screw hole, tightens, that is, completes the installation of a cell node, extension is extended with this erection sequence and is gone down, until entire axis is pacified It installs, and is welded with support;
Continue in the same way to the progressive installation lower edge of next axis, be control rack amount of deflection in rack installation process, In specified lower edge bolt sphere, supporting post-rod is set;
Alternately upper lower edge rack installation in the manner described above, until installation to the top axis finishes, and and support Welding.
It for the overhanging region on the outside of rack, is installed using piecemeal, on ground, assembling is blocking in advance, checks and accepts nothing according to specification It is in place using truck crane lifting after accidentally, it is welded in time with support after installation is in place;
Residue rack benefit dress is completed according to top method, benefit, which is installed into, checks and accepts errorless rear progress temporary support unloading, unloading Sequence is from top to bottom.
The support adjusts absolute altitude using jack, fixed after adjustment.
Positive quadrangular pyramid bolt-ball net frame multi-point support high-altitude of the invention dissipates splicing method, solve consider the construction period, The installation question of the positive quadrangular pyramid bolt-ball net frame of small tonnage under the composite factors such as technical quality, construction safety, construction cost.Net Step frame to be erected to be promoted using piecemeal, remaining totality uses multi-point support high-altitude to dissipate the method construction spelled, specific as follows:
One, the starting frame (first steps up 6 pieces of three grids of string point 6 lifting elements as starting frame) of rack is using ground Face, which dissipates, is combined into small lifting elements lifting, it can be ensured that starting rack position grid structure safety and stability;
Two, starting frame after the installation is completed spell using high-altitude is scattered by rest part, can push ahead assembly simultaneously on a large scale, it is not necessary to It can ensure that project progress while cost of idleness as whole promoted, paving safety net overworked under dissipating during spelling, to ensure to make Industry personnel safety is applied;
Three, rack high-altitude carries out accepting analysis by MIDAS before dissipating spelling to rack line mould, finds out and deforms during assembly Possible biggish place, setting support, this supported design is at the form that can adjust absolute altitude at any time, to ensure grid structure installation position It moves in controlled range;
Specific embodiment:
It is calculated firstly, carrying out Construction of The Grids simulation
There are having more than needed when horizontal direction bracing displacement is arranged, cross-brace is avoided to deform, the setting support of this part is hidden Structure can not see after site operation, thus do not know be followed by it is no have downwarp phenomenon, it is contemplated that there are remaining for setting Amount.
Rack erection sequence:
Step 1: (such as Fig. 2) is lifted using truck crane to rack top totally first by rack after installation on ground blocking (6 pieces) Portion designated position checks errorless rear and both ends support welding, fixes.
Second step (such as Fig. 3): from mounted starting frame, up direction is assembled on the basis of the rack that back group installs, Sequentially are as follows: to one grid of extension, axis first installs rack and winds up from left to right.Method particularly includes: unit is first assembled on the ground Node, every cell node are advisable with four rod pieces of a steel ball;Cell node is hung to using tower crane or self-control lifting equipment It is aerial in place.Installer is sitting on node, after the screw hole on high-strength bolt alignment steel ball, tightens, that is, completes a unit The installation of node.Extend extension with this erection sequence to go down, be welded until entire axis installs, and with support.
Step 3: (such as Fig. 4) continues in the method for second step to the progressive installation lower edge of next axis, in rack installation process To control rack amount of deflection, supporting post-rod is set in specified lower edge bolt sphere.
Step 4: alternately upper lower edge rack installation in the manner described above, until installation to the top axis finishes, and It is welded with support.
Step 5: due to the rightmost side (the 7th piece, the 8th piece, the 9th piece of areas outside be overhanging region, pacified using piecemeal Dress) it is in advance that the 7th piece, the 8th piece, the 9th piece is blocking in ground assembling, it is checked and accepted according to specification errorless rear using truck crane lifting In place, it is welded in time with support after installation is in place.
Step 6: mending dress according to top method completion residue rack, benefit installs into the errorless rear temporary support that carries out of examination and unloads It carries, sequence of unloading is from top to bottom.
For rack support system:
Firstly, adjusting absolute altitude using jack;It is fixed after adjustment.
The present invention dissipates the Construction of The Grids method of spelling+multi-point support using starting frame piecemeal promotion+rack high-altitude, solves well Determined small area, small tonnage grid structure installation question be able to satisfy for the space grid structure for having broad based growth prospect Cost efficiency, the requirement of high quality high accuracy positioning.It is installed to using this rack installation method from support by the practice of this engineering Rack installs the used time 20 days, completes 168.5 tons of installations of rack.It is small light-weight that this installation method is suitable for most of areas Grid structure system.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto, Within the technical scope of the present disclosure, any changes or substitutions that can be easily thought of by anyone skilled in the art, It should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with the protection model of claims Subject to enclosing.

Claims (6)

1. a kind of positive quadrangular pyramid bolt-ball net frame multi-point support high-altitude dissipates splicing method, which is characterized in that comprising steps of
A, the starting frame of rack is dissipated using ground is combined into small lifting elements lifting;
B, after the installation is completed, rest part is dissipated using high-altitude spells starting frame;
Before the step B, firstly, carrying out accepting analysis to rack line mould by MIDAS, finding out deformation during assembly may Biggish place setting support, this supported design is at the structure that can be adjusted at any time absolute altitude.
2. positive quadrangular pyramid bolt-ball net frame multi-point support high-altitude according to claim 1 dissipates splicing method, which is characterized in that institute It states in step A, first by the starting frame of rack after installation on ground is at 6 pieces, is lifted using truck crane to designated position at the top of rack, It checks errorless rear and both ends support welding, fix.
3. positive quadrangular pyramid bolt-ball net frame multi-point support high-altitude according to claim 2 dissipates splicing method, which is characterized in that institute It states in step B, pushes ahead assembly simultaneously using a wide range of, up direction is assembled from mounted starting frame, sequence are as follows: forward Stretching a grid, axis first installs rack and winds up from left to right.
4. positive quadrangular pyramid bolt-ball net frame multi-point support high-altitude according to claim 3 dissipates splicing method, which is characterized in that institute Step B is stated to specifically include:
Cell node is first assembled on the ground, and every cell node includes four rod pieces of a steel ball, utilizes tower crane or self-control Lifting equipment is hung to cell node in the air in place, and installer is sitting on node, to the screw hole on high-strength bolt alignment steel ball Afterwards, it tightens, that is, completes the installation of a cell node, extension is extended with this erection sequence and is gone down, until entire axis installs, And it is welded with support;
Continue in the same way to the progressive installation lower edge of next axis, is control rack amount of deflection in rack installation process, is referring to Fix string bolt sphere setting supporting post-rod;
Alternately upper lower edge rack installation in the manner described above, until installation to the top axis finishes, and is welded with support.
5. positive quadrangular pyramid bolt-ball net frame multi-point support high-altitude according to claim 4 dissipates splicing method, which is characterized in that right Overhanging region on the outside of rack, is installed using piecemeal, and on ground, assembling is blocking in advance, is checked and accepted according to specification errorless rear using vapour Vehicle lifting is in place, is welded in time with support after installation is in place;
Residue rack benefit dress is completed according to top method, benefit, which is installed into, checks and accepts errorless rear progress temporary support unloading, sequence of unloading From top to bottom.
6. positive quadrangular pyramid bolt-ball net frame multi-point support high-altitude according to any one of claims 1 to 5 dissipates splicing method, special Sign is that the support adjusts absolute altitude using jack, fixed after adjustment.
CN201811124155.0A 2018-09-26 2018-09-26 Positive quadrangular pyramid bolt-ball net frame multi-point support high-altitude dissipates splicing method Pending CN109235902A (en)

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Cited By (8)

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Publication number Priority date Publication date Assignee Title
CN111005454A (en) * 2019-12-09 2020-04-14 中国电建集团河南工程有限公司 Flue gas purification room net rack block hoisting construction method
CN111620223A (en) * 2020-05-25 2020-09-04 中铁建工集团有限公司 Construction method for lifting net rack through secondary stress conversion of support
CN111691683A (en) * 2020-06-09 2020-09-22 浙江东南网架股份有限公司 Installation method of double-layer skew-diagonal variable-thickness hyperbolic reticulated shell structure
CN111705931A (en) * 2020-06-03 2020-09-25 中国化学工程第六建设有限公司 Construction method of large-span grid structure
CN111794524A (en) * 2020-07-10 2020-10-20 青岛新华友建工集团股份有限公司 Bolt ball steel pipe net rack segmented hoisting and high-altitude scattered splicing combined installation construction process
CN111809893A (en) * 2020-08-18 2020-10-23 浙江中南建设集团钢结构有限公司 Installation method of curved steel latticed shell structure with gradually-changed mountain wall starting span diameter
CN111877558A (en) * 2020-08-17 2020-11-03 徐州中煤汉泰建筑工业化有限公司 Deflection control method for arched bolt ball latticed shell structure of hanging operation equipment
CN113006498A (en) * 2021-02-25 2021-06-22 中铁九局集团第四工程有限公司 Large-span spherical roof truss pull rod lifting construction method

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111005454A (en) * 2019-12-09 2020-04-14 中国电建集团河南工程有限公司 Flue gas purification room net rack block hoisting construction method
CN111620223A (en) * 2020-05-25 2020-09-04 中铁建工集团有限公司 Construction method for lifting net rack through secondary stress conversion of support
CN111705931A (en) * 2020-06-03 2020-09-25 中国化学工程第六建设有限公司 Construction method of large-span grid structure
CN111691683A (en) * 2020-06-09 2020-09-22 浙江东南网架股份有限公司 Installation method of double-layer skew-diagonal variable-thickness hyperbolic reticulated shell structure
CN111691683B (en) * 2020-06-09 2021-10-08 浙江东南网架股份有限公司 Installation method of double-layer skew-diagonal variable-thickness hyperbolic reticulated shell structure
CN111794524A (en) * 2020-07-10 2020-10-20 青岛新华友建工集团股份有限公司 Bolt ball steel pipe net rack segmented hoisting and high-altitude scattered splicing combined installation construction process
CN111877558A (en) * 2020-08-17 2020-11-03 徐州中煤汉泰建筑工业化有限公司 Deflection control method for arched bolt ball latticed shell structure of hanging operation equipment
CN111809893A (en) * 2020-08-18 2020-10-23 浙江中南建设集团钢结构有限公司 Installation method of curved steel latticed shell structure with gradually-changed mountain wall starting span diameter
CN113006498A (en) * 2021-02-25 2021-06-22 中铁九局集团第四工程有限公司 Large-span spherical roof truss pull rod lifting construction method

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