CN106592760B - Bolt-ball net frame high-altitude, which dissipates, spells construction method - Google Patents
Bolt-ball net frame high-altitude, which dissipates, spells construction method Download PDFInfo
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- CN106592760B CN106592760B CN201611243943.2A CN201611243943A CN106592760B CN 106592760 B CN106592760 B CN 106592760B CN 201611243943 A CN201611243943 A CN 201611243943A CN 106592760 B CN106592760 B CN 106592760B
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/19—Three-dimensional framework structures
- E04B1/1903—Connecting nodes specially adapted therefor
- E04B1/1906—Connecting nodes specially adapted therefor with central spherical, semispherical or polyhedral connecting element
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- Movable Scaffolding (AREA)
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Abstract
It is dissipated the present invention relates to bolt-ball net frame high-altitude and spells construction method, belong to building element mounting technology field.The present invention constructs according to following steps: step 1: preparation stage；Full hall scaffold step 2 of inspecting for acceptance → set up: bolt-ball net frame installation at high altitude is carried out to bolt sphere, rod piece；Step 3: bolt-ball net frame adjustment and fastening；Step 4: support installation and welding；Step 5: temporary support point is removed；Step 6: bolt-ball net frame integral installation quality is checked；Step 7: coating.The present invention carries out the assembly of assembly in situ or smallest assembled rigid unit on design position, carries out the dismounting of scaffold and the unloading of structure after the completion of assembled again using full hall scaffold as the support platform of bolt-ball net frame and mounting platform；Large-scale hoisting machinery is not needed, construction personnel constructs on platform, and relatively safety, construction is simple are easy to guarantee assembled quality.
Description
Technical field
It is dissipated the present invention relates to bolt-ball net frame high-altitude and spells construction method, belong to building element mounting technology field.
Background technique
Elements of Space Grid Truss has lightweight construction, and rigidity is big, and overall effect is good, the strong feature of shock resistance, thus is widely applied
It is built in airport, stadiums, show room etc..Elements of Space Grid Truss includes bolt-ball net frame and welding ball grid, wherein bolt-ball net frame
It is very widely used, and having the advantage that can be to avoid a large amount of site welding workload；Spare and accessory parts batch production processing, precision
Height, site operation is convenient, is easy to guarantee construction quality.
Summary of the invention
The present invention proposes a kind of bolt to further improve the technique that full hall scaffold high-altitude dissipates spelling bolt-ball net frame
Ball grid high-altitude, which dissipates, spells construction method, using full hall scaffold as the support platform of bolt-ball net frame and mounting platform, in design position
The assembly for carrying out assembly in situ or smallest assembled rigid unit is set, carries out the dismounting of scaffold and unloading for structure after the completion of assembled again
It carries, construction is simple of the present invention, the safety for being easy to guarantee construction personnel are widely used in various grid structure engineerings.
The present invention, which is that the following technical solution is employed, to be realized: a kind of bolt-ball net frame high-altitude is scattered to spell construction method, according to
Following steps construction:
Step 1: preparation stage；
First to bolt sphere, rod piece being inspected for acceptance and then set up full hall scaffold
Step 2: bolt-ball net frame installation at high altitude；
Step 1: unwrapping wire tests line；
Step 2: installation first row quadrangular pyramid；
The pyrometric cone assembling unit step 3: installation is winded up；
Step 4: installation lower edge pyrometric cone assembling unit；
Pyrometric cone assembling unit and lower edge pyrometric cone assembling unit step 5: cycle installation is winded up, until rack rack is pacified
It installs into；
Step 3: bolt-ball net frame adjustment and fastening；
Step 4: support installation and welding；
Step 5: temporary support point is removed；
Step 6: bolt-ball net frame integral installation quality is checked；
Step 7: coating；
Brush antirust paint → prime → fire resistant coating brushing is mended in basal plane cleaning
Step 8: it checks and accepts.
Further, second step includes following small step in step 2:
(1) by first across support install in place, to good capital axis, center line, adjust absolute altitude with level, it is wrong
Difference is corrected；First row lower edge ball, bar are installed, fore-and-aft plane grid is formed；Temporary support point is sequenced, guarantees the flat of lower edge ball
Row degree；
(2) installation first across web member and wind up ball, wind up ball and web member junior unit be one to wind up ball, two web members；On
After string ball and web member junior unit are in place, it is screwed into lower edge ball, it is fixed；
(3) top boom for installing first quadrangular pyramid, forms first grid that winds up；
(4) first lower edge pyrometric cone assembling unit is installed, lower edge pyrometric cone assembling unit is by under a lower edge ball, one
Chord member, two web member compositions, hang in scene for the lower edge pyrometric cone assembling unit that three bar of a ball forms, two web members are screwed into
On string ball, it is screwed into lower boom gradually close to mounted lower edge ball,；
(5) small step (2) installation web member and the ball that winds up are repeated；
(6) small step (3) are repeated and top boom is installed；
(7) small step (4) are repeated and lower edge pyrometric cone assembling unit is installed；
(8) lower boom is installed between mounted two lower edges pyrometric cone assembling unit lower edge ball, is allowed to be unified into one
Body, the closing of the first grid of lower edge；
(9) small step (5) to (8) are recycled, the first installation across quadrangular pyramid is completed；
(10) bolt-ball net frame, size of mesh opening are checked, checks bolt-ball net frame longitudinal size and bolt-ball net frame rise ruler
It is very little, if exceeding specification tolerance, adjust in time.
Further, third step includes following small step in step 2:
(1) it is assembled from bolt-ball net frame second row quadrangular pyramid using continuous Method for Installation；It is single that pyrometric cone assembling of winding up is installed
Member, the pyrometric cone assembling unit that winds up are made of the ball that winds up, a top boom, two web members；
One ball, the three bar pyrometric cone assembling unit that winds up is hung in into scene；Two web members are screwed on lower edge ball, are then made
Chord member gradually close to the mounted ball that winds up, is screwed into；
(2) continue that the pyrometric cone assembling unit that winds up that next three bar of ball forms is installed according to the above method, then installing
Two pyrometric cone assembling units that wind up wind up a top boom be installed between ball, be allowed to join together, the grid that winds up closing；
(3) above two small steps (1) and (2) are recycled, every assembled one group pyrometric cone assembling unit that winds up then installs one and winds up
Bar, top boom both ends are screwed into bolt, complete pyrometric cone unit installation of winding up.
Further, third step includes following small step in step 2:
(1) after pyrometric cone assembling unit is winded up in installation, that is, start that lower edge pyrometric cone component units are installed；On-site assembly is under
String pyrometric cone assembling unit, lower edge pyrometric cone assembling unit are made of a lower edge ball, a lower boom, two web members；
The lower edge pyrometric cone assembling unit that one ball, three bar forms is hung in into scene；Two web members are screwed into and are winded up on ball, so
After make lower boom gradually close to mounted lower edge ball, be screwed into；
(2) the lower edge pyrometric cone assembling unit for continuing to install next three bar of ball composition by above-mentioned method, then
Two lower edge pyrometric cone assembling units of installation, which wind up, installs a lower boom between ball, is allowed to join together, the closing of lower edge grid；
(3) above two small steps (1) and (2) are recycled, every assembled one group of lower edge pyrometric cone assembling unit then installs a lower edge
Bar, lower boom both ends are screwed into bolt, complete the installation of lower edge pyrometric cone component units.
Further, include: in the adjustment of step 3 bolt-ball net frame and fastening
A) measurement checks the geometric dimension of bolt-ball net frame, one triangle of every completion at any time during bolt-ball net frame is assembled
Assembling unit is bored, lower edge size of mesh opening and diagonal line should be checked, wind up size of mesh opening and diagonal line, pyrometric cone assembling unit are formed
Cone height it is whether correct, after bolt-ball net frame is completed, before each temporary support point is not removed, should check grid longitudinal direction
Whether length, lateral length, bolt-ball net frame rise are correct, and are adjusted；
B) bolt-ball net frame during assembly should each temporary support point check at any time sinking situation, if any decline, and
Shi Jiagu prevents falling phenomenon；
C) bolt Ying Xianyong hand is twisted, then is tightened with special spanner；But it can not once tighten in place, bolt-ball net frame inspection,
After adjustment, bolt-ball net frame is re-secured with high-strength bolt；
D) after bolt-ball net frame is fastened with high-strength bolt, the positioning stove bolt on sleeve is tightened into locking.
The beneficial effects of the present invention are:
(1) bolt-ball net frame high-altitude of the present invention, which dissipates, spells construction method, using full hall scaffold as bolt-ball net frame
Support platform and mounting platform carry out the assembly of assembly in situ or smallest assembled rigid unit, after the completion of assembly again on design position
Carry out the dismounting of scaffold and the unloading of structure；Large-scale hoisting machinery is not needed, construction personnel constructs on platform, compares peace
Entirely, construction is simple is easy to guarantee assembled quality；
(2) the scattered spelling construction method in bolt-ball net frame high-altitude of the present invention is complicated to figure, grid structure is special builds
Object is built, there is good applicability；
(3) bolt-ball net frame high-altitude of the present invention, which dissipates, spells construction method, widely applicable, can be widely applied to various nets
In frame Structural Engineering, it is particularly suitable for the feelings that moulding is complicated, is not available the schemes such as big machinery lifting, and sliding, promotion
Under condition.
Detailed description of the invention
Fig. 1 is first row quadrangular pyramid installation process schematic diagram of the present invention.
Fig. 2 is that the present invention winds up pyrometric cone assembling unit installation process schematic diagram.
Fig. 3 is lower edge pyrometric cone assembling unit installation process schematic diagram of the present invention.
In figure: 1, bar；2, lower edge ball；3, web member；4, wind up ball；5, top boom；6, lower boom；7, lower edge pyrometric cone assembles
Unit；8, wind up pyrometric cone assembling unit.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, with reference to the accompanying drawing and specific example, to this hair
The bolt-ball net frame high-altitude of bright proposition dissipates spelling construction method and is further described.
Bolt-ball net frame high-altitude of the present invention, which dissipates, spells construction method, constructs in accordance with the following steps:
Step 1: preparation stage；
Bolt sphere, rod piece inspect for acceptance → set up full hall scaffold
Inspecting for acceptance for rod piece is inspected for acceptance including bar 1, web member 3, top boom 5, lower boom 6；
Setting up for full hall scaffold include:
A) in assembly network frame, scaffold will support rack weight, control rack absolute altitude and as operating platform, scaffold
And temporary support point should have enough strength and stiffness, and can guarantee rack installation accuracy；
B) position of temporary support point should be arranged at lower-chord panel point；
C) scaffolding height of scaffold is generally away from 2 center 300mm of rack lower edge ball depending on easy for installation；
D) safety net should be arranged below platform, platform surrounding should be arranged as operating platform in full boarding on scaffold
Guard rail 1；
Step 2: bolt-ball net frame installation at high altitude；
Step 1: unwrapping wire tests line；
Step 2: installation first row quadrangular pyramid, including following small step:
(1) by first across support install in place, to good capital axis, center line, adjust absolute altitude with level, it is wrong
Difference is corrected；First row lower edge ball 2, bar 1 are installed, fore-and-aft plane grid is formed；Temporary support point is sequenced, guarantees lower edge ball 2
The depth of parallelism；
(2) installation first across web member 3 and wind up ball 4, wind up ball 4 and 3 junior unit of web member be one to wind up ball 4, two abdomens
Bar 3；Wind up ball 4 and 3 junior unit of web member it is in place after, be screwed into lower edge ball 2, it is fixed；
(3) top boom 5 for installing first quadrangular pyramid, forms first grid that winds up；
(4) first lower edge pyrometric cone assembling unit 7 is installed, lower edge pyrometric cone assembling unit 7 is by a lower edge ball 2, one
6, two web members 3 of root lower boom form, and the lower edge pyrometric cone assembling unit 7 that three bar 1 of a ball forms are hung in scene, by two abdomens
Bar 3, which is screwed into, to wind up on ball 4, is screwed into lower boom 6 gradually close to mounted lower edge ball 2,；
(5) small step (2) installation web member 3 and the ball 4 that winds up are repeated；
(6) small step (3) are repeated and top boom 5 is installed；
(7) small step (4) are repeated and lower edge pyrometric cone assembling unit 7 is installed；
(8) lower boom 6 is installed between mounted two lower edge pyrometric cones assembling unit, 7 lower edge ball 2, is allowed to be unified into
One, the closing of the first grid of lower edge；
(9) small step (5) to (8) are recycled, the first installation across quadrangular pyramid is completed；
(10) bolt-ball net frame, size of mesh opening are checked, checks bolt-ball net frame longitudinal size and bolt-ball net frame rise ruler
It is very little, if exceeding specification tolerance, adjust in time.
Pyrometric cone assembling unit 8, including following small step step 3: installation is winded up:
(1) it is assembled from bolt-ball net frame second row quadrangular pyramid using continuous Method for Installation；It is single that pyrometric cone assembling of winding up is installed
Member 8, the pyrometric cone assembling unit 8 that winds up is made of 4, one, the ball web member 3 of top boom 5, two that winds up；
One ball, the three bar 1 pyrometric cone assembling unit 8 that winds up is hung in into scene；Two web members 3 are screwed on lower edge ball 2, then
It is screwed into top boom 5 gradually close to the mounted ball 4 that winds up,；
(2) continue that the pyrometric cone assembling unit 8 that winds up that next three bar 1 of ball forms is installed according to the above method, then pacifying
Two pyrometric cone assembling units 8 that wind up of dress, which wind up, installs a top boom 5 between ball 4, is allowed to join together, the grid that winds up envelope
It closes；
(3) above two small steps (1) and (2) are recycled, every assembled one group pyrometric cone assembling unit 8 that winds up then is installed on one
Chord member 5,5 both ends of top boom are screwed into bolt, complete pyrometric cone unit installation of winding up.
Step 4: installation lower edge pyrometric cone assembling unit 7, including following small step:
(1) after pyrometric cone assembling unit 8 is winded up in installation, that is, start that lower edge pyrometric cone component units are installed；On-site assembly at
Lower edge pyrometric cone assembling unit 7, lower edge pyrometric cone assembling unit 7 is by 2, one, lower edge ball, 3 groups of web member of a lower boom 6, two
At；
The lower edge pyrometric cone assembling unit 7 that one ball, three bar 1 forms is hung in into scene；Two web members 3 are screwed into the ball 4 that winds up
On, it is screwed into lower boom 6 gradually close to mounted lower edge ball 2,；
(2) the lower edge pyrometric cone assembling unit 7 for continuing to install next three bar 1 of ball composition by above-mentioned method, then exists
Mounted two lower edge pyrometric cones assembling unit 7, which winds up, installs a lower boom 6 between ball 4, is allowed to join together, lower edge grid
Closing；
(3) above two small steps (1) and (2) are recycled, every assembled one group of lower edge pyrometric cone assembling unit 7 is then installed under one
Chord member 6,6 both ends of lower boom are screwed into bolt, complete the installation of lower edge pyrometric cone component units.
Pyrometric cone assembling unit 8 and lower edge pyrometric cone assembling unit 7 step 5: cycle installation is winded up, until rack rack
It is installed；
Step 3: bolt-ball net frame adjustment and fastening specifically include that
A) measurement checks the geometric dimension of bolt-ball net frame, one triangle of every completion at any time during bolt-ball net frame is assembled
Assembling unit is bored, lower edge size of mesh opening and diagonal line should be checked, wind up size of mesh opening and diagonal line, pyrometric cone assembling unit are formed
Cone height it is whether correct, after bolt-ball net frame is completed, before each temporary support point is not removed, should check grid longitudinal direction
Whether length, lateral length, bolt-ball net frame rise are correct, and are adjusted；
B) bolt-ball net frame during assembly should each temporary support point check at any time sinking situation, if any decline, and
Shi Jiagu prevents falling phenomenon；
C) bolt Ying Xianyong hand is twisted, then is tightened with special spanner；But it can not once tighten in place, bolt-ball net frame inspection,
After adjustment, bolt-ball net frame is re-secured with high-strength bolt；
D) after bolt-ball net frame is fastened with high-strength bolt, the positioning stove bolt on sleeve is tightened into locking.
Step 4: support installation and welding specifically include that
A) cutting stock that base-plate and floor are carried out according to drawing requirement, carries out spot welding combination, then carries out support
The welding of bottom plate and floor；
B) during bolt-ball net frame is assembled should check at any time at support bolt sphere center whether with capital pre-buried steel
Control axis intersection point on plate is overlapped, and within the allowable range whether, such as displacement exceeds specification tolerance to error, should analyze original
Cause is removed local rod piece or smallest assembled rigid unit in time, is reinstalled, and by deviation adjusting to allowed band, misses to avoid because of accumulation
Difference is excessive, and significantly adjusts the method for support position；
C) check support position whether on axis and offset dimensions.The cumulative errors of size should be same when rack is installed
When to both sides disperse, prevent side support correct in place, other side support deviation is excessive；
D) with after fastening, the welding of the welding and support and built-in fitting that carry out bolt sphere and support is solid for bolt-ball net frame adjustment
It is fixed；
E) bolt sphere material uses No. 45 steel, requires welding according to medium carbon steel Key Points of Welding Technology and as follows:
The first, welding rod should use low-hydrogen electrode E5015 or E5016；
The second, bolt sphere should preheat, and 150~250 DEG C of preheating temperature；
Before third, welding, welding rod should be baked, and stoving temperature is 400 DEG C, baking time 2 hours；
4th, welding；First layer weld seam should use small diameter electric welding rod, low current, weld at a slow speed.
Step 5: temporary support point is removed；
Using full hall scaffold as the support platform of bolt-ball net frame and mounting platform, loose mail in situ is carried out on design position
Assembled or smallest assembled rigid unit assembly, carries out the dismounting of scaffold and the unloading of structure again after the completion of assembled.
Temporary support dismounting sequence and method: around by centre, central symmetry carries out.To prevent individual temporary support points
Stress is concentrated, preferably according to the dead load deflection value of each temporary support point, using subregion descent method in proportion stage by stage, or is used
Every step waits step descent method no more than 10mm's.After the completion of unloading, then remove temporary support point.
After temporary support point is removed, rack installation quality should be checked comprehensively.
Step 6: bolt-ball net frame integral installation quality is checked；
Step 7: coating；
Brush antirust paint → prime → fire resistant coating brushing is mended in basal plane cleaning
Step 8: it checks and accepts.
Embodiment one:
In power plant extension project, the old and new vehicular gap 33.6m builds ellipsoidal cross section grid structure in 14m eminence
It passes by one's way view bridge rack, which is supported by 4 independent steel columns, 8 ╳ 28.8m of steel column spacing；Ellipse is passed by one's way view bridge
Rack long 33.6m, transverse 11.724m, short axle 8.2m.Grid structure shares bolted node sphere 749, bolt sphere diameter phi 120
~φ 400；12915, bar, 1 60~φ of diameter φ 219 of bar.Rack load-bearing main body is 3 layers of rack bottom plate, and a ellipse is mostly on top
Channel space.
In construction and installation because place limitation can not integral hoisting, determine scheme using high-altitude of the invention dissipate spell construction method
Construction, and utilize the remaining scaffold in scene.Erection sequence is the bearing soleplate first installed between 4 supports, then by entire bottom
Plate is installed, and oval rack top is finally installed since one end, until being fully completed.
Embodiment two:
Two layers of brewery's brewing room because place limitation can not integral hoisting, the scheme that determines is that full hall foot is set up on two layers
Hand cradle is dissipated using high-altitude of the invention and spells construction method construction, and erection sequence is first to carry out the installation of central axes rack, then symmetrically
It installs from centre to both sides up to completing rack installment work.
Two layers of brewery's brewing room top use integral space truss structure, and roofing is sandwich color steel plate.Rack is by 16 supports
Support, area 1820m2；Rack plane is fan-shaped, inside radius 10.3m, outer radius 48.3m, then increases width 2m in side；Net
Frame structure shares bolted node sphere 532,100~φ of bolt sphere diameter phi 200；11969, bar, 1 48~φ of diameter φ 219 of bar.
It can be according to the sequence from centre to periphery, to reduce error for large area rack；Small-sized rack can according to from
The sequence installation of opposite side is arrived on one side.
Construction is simple of the present invention is easy to guarantee that construction personnel's is safe, widely applicable, is widely used in various grid structures
In engineering, in the case where being particularly suitable for the schemes such as moulding is complicated, is not available big machinery lifting, and slides, promoted.
Certainly, above content is only presently preferred embodiments of the present invention, be should not be construed as limiting to implementation of the invention
Example range.The present invention is also not limited to the example above, and those skilled in the art are in essential scope of the invention
Interior made all the changes and improvements etc., should all belong in patent covering scope of the invention.
Claims (1)
1. a kind of bolt-ball net frame high-altitude, which dissipates, spells construction method, it is characterised in that: construct in accordance with the following steps:
Step 1: preparation stage；
First to bolt sphere, rod piece being inspected for acceptance and then set up full hall scaffold
Step 2: bolt-ball net frame installation at high altitude；
Step 1: unwrapping wire tests line；
Step 2: installation first row quadrangular pyramid；
Second step includes following small step:
(1) by first across support install in place, to good capital axis, center line, adjust absolute altitude with level, there is error to give
With amendment；First row lower edge ball (2), bar (1) are installed, fore-and-aft plane grid is formed；Temporary support point is sequenced, guarantees lower edge ball
(2) the depth of parallelism；
(2) installation first across web member (3) and wind up ball (4), the ball that winds up (4) and web member (3) junior unit are one to wind up ball
(4), two web members (3)；Wind up ball (4) and web member (3) junior unit it is in place after, be screwed into lower edge ball (2), it is fixed；
(3) top boom (5) for installing first quadrangular pyramid, forms first grid that winds up；
(4) install first lower edge pyrometric cone assembling unit (7), lower edge pyrometric cone assembling unit (7) by a lower edge ball (2),
A piece lower boom (6), two web member (3) compositions, the lower edge pyrometric cone assembling unit (7) that three bar of a ball (1) forms are hung in existing
, two web members (3) are screwed on the ball that winds up (4), twist lower boom (6) gradually close to mounted lower edge ball (2),
Enter；
(5) it repeats small step (2) installation web member (3) and winds up ball (4)；
(6) small step (3) installation top boom (5) is repeated；
(7) small step (4) installation lower edge pyrometric cone assembling unit (7) is repeated；
(8) lower boom (6) is installed between mounted two lower edge pyrometric cones assembling unit (7) lower edge ball (2), is allowed to join
Integrally, the first grid of lower edge is closed；
(9) small step (5) to (8) are recycled, the first installation across quadrangular pyramid is completed；
(10) bolt-ball net frame, size of mesh opening are checked, checks bolt-ball net frame longitudinal size and bolt-ball net frame rise size, if
Beyond specification tolerance, adjust in time；
Step 3: pyrometric cone assembling unit (8) are winded up in installation；
Third step includes following small step:
(1) it is assembled from bolt-ball net frame second row quadrangular pyramid using continuous Method for Installation；The pyrometric cone assembling unit that winds up is installed
(8), the pyrometric cone assembling unit (8) that winds up is made of a ball that winds up (4), a top boom (5), two web members (3)；
One ball, three bar (1) the pyrometric cone assembling unit (8) that winds up is hung in into scene；Two web members (3) are screwed on lower edge ball (2),
It is screwed into top boom (5) gradually close to the mounted ball that winds up (4),；
(2) continue that winding up pyrometric cone assembling unit (8) for next three bar of ball (1) composition is installed according to the above method, then pacifying
Two pyrometric cone assembling units (8) that wind up of dress, which wind up, installs a top boom (5) between ball (4), is allowed to join together, wind up net
Lattice closing；
(3) above two small steps (1) and (2) are recycled, every assembled one group is winded up pyrometric cone assembling unit (8), then installs one and wind up
Bar (5), top boom (5) both ends are screwed into bolt, complete pyrometric cone unit installation of winding up；
Step 4: installation lower edge pyrometric cone assembling unit (7)；
4th step includes following small step:
(1) after pyrometric cone assembling unit (8) are winded up in installation, that is, start that lower edge pyrometric cone component units are installed；On-site assembly is under
String pyrometric cone assembling unit (7), lower edge pyrometric cone assembling unit (7) is by a lower edge ball (2), a lower boom (6), two abdomens
Bar (3) composition；
The lower edge pyrometric cone assembling unit (7) that one ball, three bar (1) forms is hung in into scene；Two web members (3) are screwed into the ball that winds up
(4) on, it is screwed into lower boom (6) gradually close to mounted lower edge ball (2),；
(2) the lower edge pyrometric cone assembling unit (7) for continuing to install next three bar of a ball (1) composition by above-mentioned method, then exists
Mounted two lower edge pyrometric cones assembling unit (7), which is winded up, installs a lower boom (6) between ball (4), is allowed to join together, under
The closing of string grid；
(3) above two small steps (1) and (2) are recycled, every assembled one group of lower edge pyrometric cone assembling unit (7) then installs a lower edge
Bar (6), lower boom (6) both ends are screwed into bolt, complete the installation of lower edge pyrometric cone component units；
Pyrometric cone assembling unit (8) and lower edge pyrometric cone assembling unit (7) step 5: cycle installation is winded up, until rack rack
It is installed；
Step 3: bolt-ball net frame adjustment and fastening；
Include: in the adjustment of step 3 bolt-ball net frame and fastening
A) measurement checks the geometric dimension of bolt-ball net frame, one pyrometric cone group of every completion at any time during bolt-ball net frame is assembled
Unit is filled, should check the cone that lower edge size of mesh opening and diagonal line, wind up size of mesh opening and diagonal line, pyrometric cone assembling unit are formed
Whether the height of body is correct, after bolt-ball net frame is completed, before each temporary support point is not removed, should check that grid is longitudinally long
Whether degree, lateral length, bolt-ball net frame rise are correct, and are adjusted；
B) bolt-ball net frame during assembly should each temporary support point check at any time sinking situation, if any decline, in time plus
Gu preventing falling phenomenon；
C) bolt Ying Xianyong hand is twisted, then is tightened with special spanner；But it can not once tighten in place, bolt-ball net frame inspection, adjustment
Afterwards, bolt-ball net frame is re-secured with high-strength bolt；
D) after bolt-ball net frame is fastened with high-strength bolt, the positioning stove bolt on sleeve is tightened into locking；
Step 4: support installation and welding；
Step 5: temporary support point is removed；
Step 6: bolt-ball net frame integral installation quality is checked；
Step 7: coating；
Brush antirust paint → prime → fire resistant coating brushing is mended in basal plane cleaning
Step 8: it checks and accepts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611243943.2A CN106592760B (en) | 2016-12-29 | 2016-12-29 | Bolt-ball net frame high-altitude, which dissipates, spells construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611243943.2A CN106592760B (en) | 2016-12-29 | 2016-12-29 | Bolt-ball net frame high-altitude, which dissipates, spells construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106592760A CN106592760A (en) | 2017-04-26 |
| CN106592760B true CN106592760B (en) | 2019-03-01 |
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| CN111075029B (en) * | 2019-12-12 | 2021-03-12 | 山西四建集团有限公司 | Construction method for suspended splicing of bolt ball net rack and bulk expansion joint spanning construction method |
| CN112267568B (en) * | 2020-11-06 | 2022-05-17 | 中铁二十局集团市政工程有限公司 | Steel truss structure sectional hoisting construction method |
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