CN106284668B - A kind of large span large-spatial structures roofing truss installation method - Google Patents
A kind of large span large-spatial structures roofing truss installation method Download PDFInfo
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- CN106284668B CN106284668B CN201610745512.XA CN201610745512A CN106284668B CN 106284668 B CN106284668 B CN 106284668B CN 201610745512 A CN201610745512 A CN 201610745512A CN 106284668 B CN106284668 B CN 106284668B
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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
- E04B1/342—Structures covering a large free area, whether open-sided or not, e.g. hangars, halls
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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
- E04B7/00—Roofs; Roof construction with regard to insulation
- E04B7/02—Roofs; Roof construction with regard to insulation with plane sloping surfaces, e.g. saddle roofs
- E04B7/022—Roofs; Roof construction with regard to insulation with plane sloping surfaces, e.g. saddle roofs consisting of a plurality of parallel similar trusses or portal frames
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The present invention relates to a kind of large span large-spatial structures roofing truss installation methods, the installation method adds truss accumulation slippage technology using large-span truss segmental hoisting, and before lifting and sliding, by establishing limited element calculation model, concrete strength is checked during concrete strength, sliding and unloading tooling intensity and roofing truss during assembled to truss, guarantees installation accuracy.The present invention has the advantages that the present invention so that the installation method can either save construction cost, and can preferably control installation period and installation accuracy by optimizing construction to existing gliding construction method disadvantage.
Description
Technical field
The present invention relates to a kind of podium roofing truss installation method, in particular to a kind of large span is big
Spatial steel structure roofing truss installation method.
Background technique
Currently, the installation big roofing pipe truss of the small span in low latitude directlys adopt crane mostly and is mounted directly, but for several ten
The rice even roofing of up to a hundred meters of spans, because the radius of gyration of crane is small, construction period is tight, relatively narrower in construction site, no pipe purlin
The overall package place of frame, then be just unable to complete using the installation of ultra-large type pedrail crane, therefore just must be by mobile tower
It hangs to complete.
Large span large-spatial structures roofing truss is installed, is generally installed at present using following three kinds of methods:
1. being segmented according to the lifting performance of truck crane to truss, each section carries out assembly in factory；Meanwhile in room
Lid truss installa-tion position is according to segmented-erection moulding bed, after component is transported to scene, is lifted in place by truck crane；The installation side
Method working procedure is simple；Lifting operation is all executed by truck crane, is not take up the tower crane working time；Loose mail is spelled in factory
Dress, splicing accuracy are higher；But the installation method has the disadvantage in that the self weight of (1) truss is larger, and installation site is higher, therefore
It needs to select large-tonnage truck crane, is unfavorable for controlling construction cost；(2) need usage quantity more during truss installa-tion
Moulding bed is unfavorable for controlling construction cost；(3) it using truck crane lifting needs that new steel construction stockyard is arranged in podium side.
2. set up moulding bed in podium, component be transported in the form of loose mail behind scene using QTZ80 tower crane by loose mail lift to
Installation site carries out in situ assembled；The installation method roof truss is in situ assembled, saves the construction time；It does not need using others
Hanging device has saved construction cost；It is all lifted using podium position QTZ80 tower crane, is not influenced tower steel structure and hang
Pretend industry；But the installation method has the disadvantage in that (1) roof truss carries out assembly in situ at the scene, be segmented it is more, construct into
It spends slower；(2) QTZ80 tower crane needs to remove again after completing the installation of podium roof truss structure, extends tower crane lease time,
Increase construction cost；(3) QTZ80 tower crane lifting performance is general, lifts performance to meet tower crane, it has to increase segmentation, because
This will increase moulding bed dosage；(4) since truss sections quantity increases, truss can be increased to a certain extent
The on-site consolidation workload of structure and assembled error.
3. single truss structure is divided into three sections, each section carries out assembly in factory, and scene, in-site installation are transported to after the completion of assembled
When in roof truss the North (12 axis) set up moulding bed, then lift in place using TCR6055 or JCD260 tower crane, truss spelling
It is installed by way of thrusting slip after the completion of dress in place；The installation method has above two method to compare, and has following
Advantage: (1) assembled work is only carried out in 12 axle portion positions, it is possible to reduce moulding bed dosage saves construction cost；(2) TCR6055 with
JCD260 tower crane lifting performance is good, can reduce member segments, and then reduce component assembly workload；(3) QTZ80 tower crane is available
The installation of secondary beam between roof truss, improves the utilization efficiency of on-site hoisting equipment；(4) it does not need to set using others lifting
It is standby, construction cost can be saved as much as possible；(5) next truss structure can be carried out while the assembled truss element sliding completed
Assembly, the part Steel Structure Installation duration can be effectively compressed；(6) component for being transported to scene can be stacked at high building side heap
, it does not need again podium in addition steel construction stockyard is set；But the installation method has the disadvantage in that sliding construction process is more multiple
It is miscellaneous, it needs to calculate sliding construction before construction, it is more demanding to the installation accuracy of sliding rail in work progress.
In summary installation method, three advantage of method is more, both saves construction cost, also has
Stronger feasibility.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of large span large-spatial structures roofing truss installation methods, lead to
It crosses and construction is optimized to existing gliding construction method disadvantage, so that the installation method can either save construction cost, again
Installation period and peace can preferably be controlled
Fill precision.
In order to solve the above technical problems, the technical solution of the present invention is as follows: a kind of large span large-spatial structures roofing truss
Installation method, the large span large-spatial structures roofing truss are mounted on 30m span or more, choose size 5m or more, 50m outside
The above high-altitude, 30 or more component span-depth radio roofing；The large span large-spatial structures roofing truss is by several truss structures
Composition, and every truss structure divides truss to form by several segments；Meanwhile it being installed for selecting TCR6055 tower crane to lift truss, the peace
Dress method adds truss accumulation slippage technology using large-span truss segmental hoisting；Its innovative point is: the installation method is specific
Steps are as follows:
(1) it is laid with sliding rail
Sliding rail is fixed on the reinforced beam of roofing two sides by embedded part, and reinforcing bar is close at sliding rail edge
It on the inside of beams of concrete, and is bound at roofing truss both ends by reinforcing bar and reinforced beam, on sliding rail between 2m
Away from the fixed embedded part of attachment rail；
(2) concrete strength is checked during truss is assembled
A. it is carried out from left to right according to truss sections sequence, assembled moulding bed top and the setting of truss lower edge are rigidly connected, purlin
Frame both ends are hinged support, calculate the counter-force of assembled moulding bed；
B. assembled moulding bed counter-force is transferred on reinforced beam by setting conversion beam, conversion beam bottom and with round tube branch
Support, calculates the maximum stress ratio of concrete structure, and maximum stress ratio is less than 0.85, then structure is safe, and then during assembly,
Assembled moulding bed influences less lower part concrete structure, without reinforcing；
(3) slide and unload tooling strength check
According to sliding and unloading Fixture Design, limited element calculation model, design conditions: (1) are established
The bracket end that cross bar connects out uses articulated connection；(2) dead load: dead load, and consider 0.25 times of self weight
Frictional force；(3) live load: sliding element is without construction loads；Maximum displacement and maximum stress are calculated, and through checking, it is maximum
When checking computations are than less than 0.85, then the requirement of load when sliding and unloading tooling can meet sliding；
(1) concrete strength is checked during roofing truss
Sliding rail is set on the beams of concrete of podium roofing layer, is arranged according to track, and limited element calculation model is established,
Be the most unfavorable processing condition when main couple slides among beams of concrete, beams of concrete by load, calculate beams of concrete by
Horizontal friction force and maximum displacement in power, slipping after meeting code requirement, carry out subsequent processing；
(5) truss sections lifting plus sliding construction
A. below the roofing truss installation position one end horizontally on set up n truss assembly moulding bed, and n truss is spelled
Moulding bed is filled along the width direction equidistantly distributed of roofing；
B. by TCR6055 tower crane, assembly n+1 is a on truss assembly moulding bed divides truss, is assembled into whole truss structure；
C. it is fixedly connected by sliding support device with sliding rail at the both ends of whole truss structure, and slides tooling and sliding
Support device connection, and whole truss structure is slid by truss installa-tion region by sliding tooling, after reaching installation region, slided
Unloading is moved, the suspension column of whole truss structure is made to fall into anchor bolt in embedded part；While truss slides, spelled by TCR6055 tower crane in truss
Assembled second truss structure on moulding bed is filled, and the girder steel filled between the first truss structure and roofing crossbeam is mended by tower crane B；
D. after the second truss structure is assembled, using in step c segmental hoisting and gliding method successively truss is carried out
Assembled, sliding, and the girder steel between dress truss is mended with tower crane B, until the sliding of last truss structure is completed, and installed with tower crane B benefit
Girder steel between truss completes roofing truss construction.
Further, the tower crane B is QTZ80 tower crane.
Further, it is described sliding unloading the specific steps are after (1) whole truss structure sliding in place, both ends respectively use two
10t is classified jack and truss sliding element is lifted off thrusting slip tooling；(2) pass through 10 lifting jack unloading sliding elements；(3) lead to
It overregulates very heavy heights of roofs and slowly transfers truss, so that its suspension column is fallen into anchor bolt in embedded part, and anchor bolt is fastened.
The present invention has the advantages that
(1) large span large-spatial structures roofing truss installation method of the present invention, is added using large-span truss segmental hoisting
Truss accumulation slippage technology, can save construction cost；It is right by establishing limited element calculation model and before lifting and sliding
Concrete strength is checked during concrete strength, sliding and unloading tooling intensity and roofing truss during truss is assembled, solution
It has determined and has needed the problem of being calculated repeatedly sliding construction before constructing, but can preferably control installation period and installation essence
Degree.
(2) large span large-spatial structures roofing truss installation method of the present invention, by TCR6055 tower crane to truss sections
Lifting and assembly are carried out, TCR6055 tower crane lifting performance is good, can reduce member segments, and then reduce component assembly workload；
Installation by QTZ80 tower crane for girder steel between roof truss, improves the utilization efficiency of on-site hoisting equipment.
Detailed description of the invention
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
FIG. 1 to FIG. 9 is the process schematic of truss sections lifting plus sliding construction in embodiment.
Specific embodiment
The following examples can make professional and technical personnel that the present invention be more fully understood, but therefore not send out this
It is bright to be limited among the embodiment described range.
Embodiment
The present embodiment is installed for the mansion Cheng Xing roofing truss, and the mansion Cheng Xing is total to build in Jiangyin city flower hill path 208
Area is about 149725.25 square metres, and aboveground area is about 108632.51 square meters, 41092.74 square meter of underground area.Super High
High building height is 227.3 meters, and 238.8 meters of curtain wall highest point height, 23.40 meters of annex structure height, steel construction mainly includes room
Lid large-span truss structure, steel stair and steel column；Podium roofing large-span truss structural plan is having a size of 54*29m, by 5 Pin
Large-span truss and girder steel composition, single-item truss span about 28.7m, weight is about 26T.
The installation of the mansion Cheng Xing roofing truss, the specific steps are as follows:
(1) it is laid with sliding rail
Sliding rail is fixed on the reinforced beam of roofing two sides by embedded part, and reinforcing bar is close at sliding rail edge
It on the inside of beams of concrete, and is bound at roofing truss both ends by reinforcing bar and reinforced beam, on sliding rail between 2m
Away from the fixed embedded part of attachment rail；
(2) concrete strength is checked during truss is assembled
A. it is carried out from left to right according to truss sections sequence, assembled moulding bed top and the setting of truss lower edge are rigidly connected, purlin
Frame both ends are hinged support, select wherein eight nodes, calculate the counter-force of each node assembly moulding bed support, counter-force the results are shown in Table
1；
B. assembled moulding bed counter-force is transferred on reinforced beam by setting conversion beam, converts beam section as HW350 × 350
× 12 × 19, material Q235, conversion beam bottom are supported with 219 × 10 round tube of Φ of high 200mm, calculate concrete structure
Maximum stress ratio is 0.25, and less than 0.85, then structure is safe, meanwhile, pass through the ratio of reinforcement for checking main bearing beam, arrangement of reinforcement rule
Lattice and maximum checking computations ratio are shown in Table 2, and by calculated result it is found that during assembly, assembled moulding bed influences lower part concrete structure
Less, without reinforcing；
(3) slide and unload tooling strength check
According to sliding and unloading Fixture Design, limited element calculation model is established, design conditions: (1) ox that cross bar connects out
Leg end uses articulated connection；(2) dead load: dead load, and consider the frictional force of 0.25 times of self weight；(3) live load: sliding
Unit is without construction loads；Calculating maximum displacement is 3.71mm, meets code requirement；Maximum stress is located on tooling, meets
Material requirements, and through checking, maximum checking computations are than being 0.31, and less than 0.85, structure safety, then cunning can be met by sliding and unload tooling
The requirement of load when shifting；
(4) concrete strength is checked during roofing truss
Sliding rail is set on the beams of concrete of podium roofing layer, is arranged according to track, and limited element calculation model is established,
It is the most unfavorable processing condition, beams of concrete is by load, and single Pin main couple weight is about when main couple slides among beams of concrete
For 26t, then side beams of concrete stress are as follows: 26/2=13t, and consider 13 × 0.25=3.25t of horizontal friction force in slipping,
Maximum displacement at this time is 33.6mm, meets code requirement, without reinforcing, carries out subsequent processing；
(5) truss sections lifting plus sliding construction
A. as shown in Figure 1, below the roofing truss installation position one end horizontally on set up two truss assembly moulding beds
1, and two truss assembly moulding beds 1 are along the width direction equidistantly distributed of roofing；
B. pass through TCR6055 tower crane assembled three points of truss 2 on truss assembly moulding bed, as shown in Fig. 2, being assembled into first
Truss structure 3；
C. as shown in figure 3, being fixedly connected by sliding support device 4 with sliding rail 5 at the both ends of whole truss structure, and it is sliding
It moves tooling to connect with sliding support device, and whole truss structure is slid by truss installa-tion region by sliding tooling, reach installation
Behind region, sliding unloading is carried out, the suspension column of whole truss structure is made to fall into anchor bolt in embedded part；While first truss structure slides, pass through
TCR6055 tower crane assembled second truss structure 6 on truss assembly moulding bed, as shown in figure 4, and filling first by QTZ80 tower crane benefit
Girder steel 7 between truss structure 3 and roofing crossbeam；
D. as shown in Fig. 5~9, after 6 assembly of the second truss structure, using the segmental hoisting and gliding method in step c
Assembled, sliding successively is carried out to truss, and mends the girder steel between dress truss with QTZ80 tower crane, until the sliding of the 5th truss structure is completed,
And the girder steel installed between truss is mended with QTZ80 tower crane, that is, complete roofing truss construction.
The specific steps are after (1) whole truss structure sliding in place, both ends respectively use two 10t classification jack will for sliding unloading
Truss sliding element is lifted off thrusting slip tooling；(2) pass through 10 lifting jack unloading sliding elements；(3) by adjusting very heavy rise
Degree slowly transfers truss, so that its suspension column is fallen into anchor bolt in embedded part, and anchor bolt is fastened.
The present embodiment adds truss accumulation slippage technology using large-span truss segmental hoisting, can save construction cost；And
Before lifting and sliding, by establishing limited element calculation model, to concrete strength, sliding and unloading work during truss assembly
Concrete strength is checked during filling intensity and roofing truss, is solved and is needed to calculate sliding construction repeatedly before construction
Problem, but can preferably control installation period and installation accuracy.
1 moulding bed end reaction value of table
| Node | Load | Stage | Fx(KN) | Fy(KN) | Fz(KN) |
| 140 | It is total | Min/Max | 0 | -0.25 | 27.48 |
| 142 | It is total | Min/Max | 0 | -0.04 | 25.23 |
| 144 | It is total | Min/Max | 0 | 0.25 | 24.48 |
| 146 | It is total | Min/Max | 0 | 0.04 | 24.02 |
| 148 | It is total | Min/Max | 0 | -0.78 | 31.47 |
| 150 | It is total | Min/Max | 0 | -0.14 | 29.75 |
| 152 | It is total | Min/Max | 0 | -0.25 | 28.41 |
| 154 | It is total | Min/Max | 0 | 0.01 | 27.48 |
The arrangement of reinforcement specification of the main bearing beam of table 2 and maximum checking computations ratio
Basic principles and main features and advantages of the present invention of the invention have been shown and described above.The skill of the industry
Art personnel it should be appreciated that the present invention is not limited to the above embodiments, the above embodiments and description only describe
The principle of the present invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these
Changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and
Its equivalent thereof.
Claims (3)
1. a kind of large span large-spatial structures roofing truss installation method, the large span large-spatial structures roofing truss
The roofing for being mounted on 30m span or more, choosing the high-altitude size 5m or more, 50m or more, 30 or more component span-depth radio outside；Described is big
Span large-spatial structures roofing truss is made of several truss structures, and every truss structure divides truss to form by several segments；Meanwhile needle
It is installed to selecting TCR6055 tower crane to lift truss, which adds truss accumulation to slide using large-span truss segmental hoisting
Shifting technology；It is characterized by: specific step is as follows for the installation method:
(1) it is laid with sliding rail
Sliding rail is fixed on the reinforced beam of roofing two sides by embedded part, and reinforced concrete is close at sliding rail edge
It on the inside of native beam, and is bound at roofing truss both ends by reinforcing bar and reinforced beam, is pacified on sliding rail with the spacing of 2m
Fill the fixed embedded part of track；
(2) concrete strength is checked during truss is assembled
A. it is carried out from left to right according to truss sections sequence, assembled moulding bed top and the setting of truss lower edge are rigidly connected, truss two
End is hinged support, calculates the counter-force of assembled moulding bed；
B. assembled moulding bed counter-force is transferred on reinforced beam by setting conversion beam, and conversion beam bottom is simultaneously supported with round tube, meter
The maximum stress ratio of concrete structure is calculated, maximum stress ratio is less than 0.85, then structure is safe, and then during assembly, assembled
Moulding bed influences less lower part concrete structure, without reinforcing；
(3) slide and unload tooling strength check
According to sliding and unloading Fixture Design, limited element calculation model is established, design conditions: (1) the bracket end that cross bar connects out
Portion uses articulated connection；(2) dead load: dead load, and consider the frictional force of 0.25 times of self weight；(3) live load: sliding element
Without construction loads；Maximum displacement and maximum stress are calculated, and through checking, when maximum checking computations are than less than 0.85, then slide and unload
The requirement of load when load tooling can meet sliding；
(4) concrete strength is checked during roofing truss
Sliding rail is set on the beams of concrete of podium roofing layer, is arranged according to track, and limited element calculation model is established, and works as master
Be the most unfavorable processing condition when truss slides among beams of concrete, beams of concrete by load, calculate beams of concrete stress,
Horizontal friction force and maximum displacement in slipping after meeting code requirement, carry out subsequent processing；
(5) truss sections lifting plus sliding construction
A. below the roofing truss installation position one end horizontally on set up n truss assembly moulding bed, and n truss assembly tire
Width direction equidistantly distributed of the frame along roofing；
B. by TCR6055 tower crane, assembly n+1 is a on truss assembly moulding bed divides truss, is assembled into whole truss structure；
C. it is fixedly connected by sliding support device (4) with sliding rail (5) at the both ends of whole truss structure, and slides tooling and cunning
Support device connection is moved, and whole truss structure is slid by truss installa-tion region by sliding tooling, after reaching installation region, is carried out
Sliding unloading, makes the suspension column of whole truss structure fall into anchor bolt in embedded part；While truss slides, by TCR6055 tower crane in truss
Assembled second truss structure on assembled moulding bed, and the girder steel filled between the first truss structure and roofing crossbeam is mended by tower crane B；
D. after the second truss structure is assembled, using in step c segmental hoisting and gliding method successively to truss carry out it is assembled,
Sliding, and the girder steel between dress truss is mended with tower crane B, until the sliding of last truss structure is completed, and is mended and installed between truss with tower crane B
Girder steel, that is, complete roofing truss construction.
2. large span large-spatial structures roofing truss installation method according to claim 1, it is characterised in that: the tower
Hanging B is QTZ80 tower crane.
3. large span large-spatial structures roofing truss installation method according to claim 1, it is characterised in that: the cunning
Move unloading the specific steps are after (1) whole truss structure sliding in place, both ends respectively use two 10t classification jack to slide truss
Unit is lifted off thrusting slip tooling；(2) pass through 10 lifting jack unloading sliding elements；(3) by adjust very heavy heights of roofs it is slow under
Truss is put, so that its suspension column is fallen into anchor bolt in embedded part, and anchor bolt is fastened.
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| JP2002235443A (en) * | 2001-02-08 | 2002-08-23 | Takenaka Komuten Co Ltd | Intermediate story steel frame traveling construction method |
| CN101200959A (en) * | 2007-11-29 | 2008-06-18 | 北京城建集团有限责任公司 | Multi-point pushing cumulative-gliding construction method for steel roof truss |
| CN101666163A (en) * | 2009-09-15 | 2010-03-10 | 中冶建工有限公司 | High-altitude long-span roofing pipe truss installation method |
| CN202416882U (en) * | 2011-12-14 | 2012-09-05 | 中国一冶集团有限公司 | Track for slippage installation of large-span pipe truss |
| CN103774856A (en) * | 2014-01-24 | 2014-05-07 | 成张佳宁 | Method for glidingly constructing large-span special-shaped heavy steel girder on super high-rise roof |
| CN204402059U (en) * | 2014-12-17 | 2015-06-17 | 上海绿地建设(集团)有限公司 | For the slide device of constructing |
| CN104929373A (en) * | 2015-06-19 | 2015-09-23 | 中建二局第二建筑工程有限公司 | Large-span square steel pipe truss and accumulative sliding construction method thereof |
| CN105544984A (en) * | 2015-12-15 | 2016-05-04 | 安徽伟宏钢结构集团股份有限公司 | Large-span steel structure jig frame integrity slip construction process |
| CN105569358A (en) * | 2015-12-15 | 2016-05-11 | 中国建筑第八工程局有限公司 | Construction method of special-shaped curved surface roof with large span and multiple curvatures |
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