CN106121237B - Large-span steel arch without outer construction method for supporting and assembled welding positioner - Google Patents
Large-span steel arch without outer construction method for supporting and assembled welding positioner Download PDFInfo
- Publication number
- CN106121237B CN106121237B CN201610790598.8A CN201610790598A CN106121237B CN 106121237 B CN106121237 B CN 106121237B CN 201610790598 A CN201610790598 A CN 201610790598A CN 106121237 B CN106121237 B CN 106121237B
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- arch
- steel arch
- steel
- arcuate segments
- seam
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 162
- 239000010959 steel Substances 0.000 title claims abstract description 162
- 238000010276 construction Methods 0.000 title claims abstract description 40
- 238000003466 welding Methods 0.000 title claims abstract description 25
- 238000000465 moulding Methods 0.000 claims abstract description 34
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 4
- 238000005476 soldering Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 8
- 238000004826 seaming Methods 0.000 abstract description 2
- 101150097977 arch-1 gene Proteins 0.000 description 14
- 238000010586 diagram Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000009435 building construction Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention discloses a kind of large-span steel arches without outer construction method for supporting and assembled welding positioner, large-span steel arch is fabricated to the steel construction arch being made of arc steel arch and the lower steel column of arch by this method in advance, arc steel arch is made of the connection of at least two arcuate segments steel arch, the joint that arcuate segments steel arch and arcuate segments steel arch are connected with each other is made into l-shaped connector, it is Z-shaped seam that seam is formed by when arcuate segments steel arch being made to be connected with each other with arcuate segments steel arch, and it is "-" type seam to be formed by seam when arcuate segments steel arch being made to be connected with each other with the lower steel column of arch；When carrying out arc steel arch assembly welding, a hollow moulding bed is placed in the lower section of the Z-shaped seaming position of each arcuate segments steel arch, and place "-" type moulding bed as needed below the other positions of arcuate segments steel arch, then welded again.The present invention has many advantages, such as need not outer supporting and quick construction be convenient, simple in structure, construction quality is good.
Description
Technical field
The present invention relates to a kind of large-span steel arches without outer construction method for supporting and assembled welding positioner, belong to greatly across
Spend the technical field of construction of steel construction arch.
Background technology
With the development in pluralism of building function, steel construction is more and more blended in building construction design.Steel construction
Arch is mainly used for the positions such as large space upper cover, steel-concrete structure conversion layer, this also determine its span it is big, from great feature.Greatly
Span requires steel construction machining accuracy to want high, and slightly deviation may result in steel arch and can not accurately transfer；From significant requirement steel arch point
Duan Heli will have enough weld lengths to ensure that Hoisting Security, hoisting point position should be arranged rationally.In practical operation, still have compared with
More units are constructed by rule of thumb, do not focus on the control of steel arch hoisting process.Lifting is just found to designated position can not be in place, has to spend
More energy amendments.In addition, in the prior art, when carrying out lifting large-span steel arch with hanging device, generally requiring
It is lifted by the way of building outer supporting, this not only adds construction costs, and also affect construction speed.Therefore,
The form of construction work of existing large-span steel arch or not ideal enough, cannot meet the needs of building.
Invention content
The purpose of the present invention is：There is provided a kind of quick construction is convenient, simple in structure, construction quality is good, it is at low cost it is big across
Spend steel construction arch without outer construction method for supporting and assembled welding positioner, to overcome overcome the deficiencies in the prior art.
The technical proposal of the invention is realized in this way：
A kind of large-span steel arch of the present invention is that this method is in advance by large-span steel knot without outer construction method for supporting
Structure arch is fabricated to the steel construction arch being made of arc steel arch and the lower steel column of arch, and arc steel arch is by least two arcuate segments steel arch
The joint that arcuate segments steel arch and arcuate segments steel arch are connected with each other is made l-shaped connector, makes arcuate segments by connection composition
Steel arch is formed by seam when being connected with each other with arcuate segments steel arch be Z-shaped seam, and arcuate segments steel arch and the lower steel of arch are stood
The connecting end surface that column is connected with each other is fabricated to plane, is formed by and connects when arcuate segments steel arch being made to be connected with each other with the lower steel column of arch
Seam is "-" type seam；When carrying out large-span steel arch construction, by the good arcuate segments steel arch of pre-production and the lower steel of arch
Column transports to the scene for needing to install large-span steel arch, and arcuate segments steel arch is then assembled into arc-shaped steel arch shape, will
Steel column is respectively perpendicular installation fix in position under the arch of each large-span steel arch；When carrying out arc steel arch assembly welding,
A hollow moulding bed is placed in the lower section of the Z-shaped seaming position of each arcuate segments steel arch, and in arcuate segments steel
"-" type moulding bed is placed below the other positions of arch as needed, it in this way can be by hollow moulding bed and "-" type moulding bed by institute
It wants assembled arcuate segments steel arch to be all adjusted in the same horizontal position and forms a complete arc-shaped steel arch shape, so
Z-shaped seam crossing is welded afterwards, after completing all Z-shaped seam welds, the assembled and good arc of welding production will be passed through
Shape steel arch is suspended to steel column upper end under already fixed arch with hanging device, make the arcuate segments steel arch of arc steel arch with
The end face fitting and be aligned and form "-" type seam that the lower steel column of arch is connected with each other, after being welded to the "-" type seam i.e.
Complete the construction of entire large-span steel arch.
In the above method, at steel column upper end under arc steel arch to be hung to already fixed arch with hanging device,
The hinge of leaf spring for lifting is welded in the arcuate segments steel arch of arc steel arch.
In the above method, when being welded to Z-shaped seam or "-" type seam, the soldering opening of seam is processed into
45 ° of groove welding interface.
Assembled welding positioner according to a kind of large-span steel arch of the present invention of above method structure is the assembly
Welding positioner is hollow moulding bed or is "-" type moulding bed；The hollow moulding bed is mutual by two supporting beams and two tie-beams
Connect into the frame of square shape；The "-" type moulding bed is made of straight beam and support leg, and support leg is connected to the two of straight beam
End.
It is designed with supporting leg at the both ends of each supporting beam of hollow moulding bed, the upper plane of supporting beam is upper flat higher than tie-beam
Face.
It is fixed with 1~3 oblique support plate in the side of above-mentioned each supporting beam.
1~3 side bearing diagonal is respectively fixed on the straight beam two sides of above-mentioned "-" type moulding bed.
By adopting the above-described technical solution, the present invention, which encircles large-span steel, carries out equitable subsection, different location is set
Different type seam is counted, weld length satisfaction is entirely capable of meeting Hoisting Security requirement.The present invention passes through dedicated assembled welding
Moulding bed shares arc steel arch weight, this is not only convenient to the adjustment that both ends position of form center is docked to arcuate segments steel arch, but also
Also it is effectively guaranteed machining accuracy.It is constructed using the present invention, the construction of the outer supporting of the increase that can be discarded tradition completely
Mode.Therefore, compared with prior art, the present invention the present invention not only has the advantages that not needing outer supporting, but also have and apply
The advantages that work is efficient and convenient, simple in structure, construction quality is good, at low cost, stability is good.
Description of the drawings
Fig. 1 is the structural diagram of the present invention；
Structural schematic diagram when Fig. 2 is assembled welding positioner assembly arc steel arch using the present invention；
Fig. 3 is the hollow jig structure schematic diagram of the present invention；
Fig. 4 is the present invention looks up structural representation of Fig. 3；
Fig. 5 is the left view structural representation of Fig. 3；
Fig. 6 is the "-" type jig structure schematic diagram of the present invention；
Fig. 7 is the present invention looks up structural representation of Fig. 6；
Fig. 8 is the left view structural representation of Fig. 6.
Reference sign：1- arcuate segments steel arches, 1.1-Z font seams, 1.2- "-" type seams, the lower steel of 2- arches
Column, 3- hollow moulding beds, 3.1- supporting beams, 3.2- tie-beams, 3.3- oblique support plates, 4- "-" type moulding beds, 4.1-
Straight beam, 4.2- support legs, the sides 4.3- bearing diagonal, 5- hinge of leaf spring, the upper plane of B- supporting beams, b- tie-beams it is upper
Plane.
Specific implementation mode
The present invention is described in further detail with reference to the accompanying drawings and examples.
The embodiment of the present invention：The present invention a kind of large-span steel arch without outer construction method for supporting, such as Fig. 1 and figure
Shown in 2, large-span steel arch is fabricated to the steel construction arch being made of steel column 2 under arc steel arch and arch by this method in advance,
Arc steel arch is made of the connection of at least two arcuate segments steel arch 1, and arcuate segments steel arch 1 and arcuate segments steel arch 1 are connected with each other
Joint make l-shaped connector, it is Z that seam is formed by when arcuate segments steel arch 1 and arcuate segments steel arch 1 being made to be connected with each other
Arcuate segments steel arch 1 is fabricated to plane with the connecting end surface that lower steel column 2 is connected with each other is encircleed, makes arc point by font seam 1.1
It is "-" type seam 1.2 that section steel arch 1 is formed by seam when being connected with each other with the lower steel column 2 of arch；Carrying out large-span steel
When arch construction, steel column 2 under the good arcuate segments steel arch 1 of pre-production and arch is transported to and needs to install large-span steel arch
Then arcuate segments steel arch 1 is assembled into arc-shaped steel arch shape by scene, steel column 2 under the arch that each large-span steel is encircleed
It is respectively perpendicular installation fix in position；When carrying out arc steel arch assembly welding, connect in the Z-shaped of each arcuate segments steel arch 1
A hollow moulding bed 3 is all placed in the lower section for stitching 1.1 positions, and below the other positions of arcuate segments steel arch 1 as needed
"-" type moulding bed 4 (as shown in Figure 2) is placed, can will want assembled arc by hollow moulding bed 3 and "-" type moulding bed 4 in this way
Shape segmentation steel arch 1 is all adjusted in the same horizontal position and forms a complete arc-shaped steel arch shape, then to Z-shaped
It is welded at seam 1.1, after completing all welding of Z-shaped seam 1.1, the assembled and good arc-shaped steel of welding production will be passed through
Arch is suspended to 2 upper end of steel column under already fixed arch with hanging device, makes the arcuate segments steel arch 1 and arch of arc steel arch
The end face fitting and be aligned and form "-" type seam 1.2 that lower steel column 2 is connected with each other, weld the "-" type seam 1.2
The construction of entire large-span steel arch is completed after connecing.Arc steel arch is being hung under already fixed arch with hanging device
Relatively reliable and conveniently to lift when 2 upper end of steel column, in the arcuate segments steel arch 1 of arc steel arch being symmetrically welded 4 is used for
The hinge of leaf spring 5 of lifting；It is relatively reliable in order to weld, it, will when being welded to Z-shaped seam 1.1 or "-" type seam 1.2
The soldering opening of its seam is processed into 45 ° of groove welding interface.
According to a kind of assembled welding positioner of large-span steel arch of the present invention of above method structure, such as Fig. 3~Fig. 8
Shown, the assembly welding positioner is hollow moulding bed 3 or is "-" type moulding bed 4；The hollow moulding bed 3 is by two supporting beams
3.1 and two tie-beams 3.2 be welded to each other the frame for connecting into square shape；At the both ends of 3 each supporting beam 3.1 of hollow moulding bed
It is all respectively welded there are one supporting leg 3.4, the upper plane B of supporting beam 3.1 is higher than the upper plane b of tie-beam 3.2, more steady in order to use
It is fixed, it is welded and fixed 1~3 oblique support plate 3.3 in the side of each supporting beam 3.1；The "-" type moulding bed 4 is by straight beam 4.1
It is formed with support leg 4.2, the both ends for being connected to straight beam 4.1 are respectively welded in support leg 4.2；In 4.1 liang of the straight beam of "-" type moulding bed 4
It is respectively welded on side and fixes 1~3 side bearing diagonal 4.3.
Angle steel, I-steel or channel steel in the prior art can be used in above-mentioned supporting beam 3.1, tie-beam 3.2 or straight beam 4.1
Equal section steel manufactures.
Claims (7)
1. a kind of large-span steel arch without outer construction method for supporting, it is characterised in that：Large-span steel is encircleed in advance and is made
It is made by arc steel arch and the lower steel column of arch（2）The steel construction of composition encircles, and arc steel arch is by least two arcuate segments steel arch（1）
Connection composition, by arcuate segments steel arch（1）With arcuate segments steel arch（1）The joint of interconnection makes l-shaped connector, makes arc
Shape is segmented steel arch（1）With arcuate segments steel arch（1）It is Z-shaped seam that seam is formed by when interconnection（1.1）, by arc point
Section steel arch（1）With the lower steel column of arch（2）The connecting end surface of interconnection is fabricated to plane, makes arcuate segments steel arch（1）With under arch
Steel column（2）It is "-" type seam that seam is formed by when interconnection（1.2）；When carrying out large-span steel arch construction,
By the good arcuate segments steel arch of pre-production（1）With the lower steel column of arch（2）The scene for needing to install large-span steel arch is transported to,
Then by arcuate segments steel arch（1）It is assembled into arc-shaped steel arch shape, steel column under the arch that each large-span steel is encircleed（2）Point
Other right angle setting fix in position；When carrying out arc steel arch assembly welding, in each arcuate segments steel arch（1）Z-shaped connect
Seam（1.1）All place a hollow moulding bed in the lower section of position（3）, and in arcuate segments steel arch（1）Other positions under root
According to need place "-" type moulding bed（4）, hollow moulding bed can be passed through in this way（3）With "-" type moulding bed（4）It will want assembly
Arcuate segments steel arch（1）It is all adjusted in the same horizontal position and forms a complete arc-shaped steel arch shape, then to Z
Font seam（1.1）Place is welded, and all Z-shaped seams are completed（1.1）It, will be good by assembled and welding production after welding
Arc steel arch be suspended to steel column under already fixed arch with hanging device（2）Upper end makes the arc point of arc steel arch
Section steel arch（1）With the lower steel column of arch（2）The end face of interconnection is bonded and is aligned and forms "-" type seam（1.2）, to this one
Font seam（1.2）The construction of entire large-span steel arch is completed after being welded.
2. according to claim 1 large-span steel arch without outer construction method for supporting, it is characterised in that：It is set with lifting
It is standby that arc steel arch is hung into steel column under already fixed arch（2）When upper end, in the arcuate segments steel arch of arc steel arch（1）On
It is welded with the hinge of leaf spring for lifting（5）.
3. according to claim 1 large-span steel arch without outer construction method for supporting, it is characterised in that：To Z-shaped
Seam（1.1）Or "-" type seam（1.2）When being welded, the soldering opening of seam is processed into 45 ° of groove welding interface.
4. according to claim 1 large-span steel arch without outer construction method for supporting, it is characterised in that：It provides a kind of big
The assembled welding positioner of span steel construction arch, the assembly welding positioner is hollow moulding bed（3）Or it is "-" type moulding bed（4）；
The hollow moulding bed（3）By two supporting beams（3.1）With two tie-beams（3.2）It is interconnected to the frame of square shape；Institute
State "-" type moulding bed（4）By straight beam（4.1）And support leg（4.2）Composition, support leg（4.2）It is connected to straight beam（4.1）'s
Both ends.
5. according to claim 4 large-span steel arch without outer construction method for supporting, it is characterised in that：In hollow tire
Frame（3）Each supporting beam（3.1）Both ends be designed with supporting leg（3.4）, supporting beam（3.1）Upper plane（B）Higher than tie-beam
（3.2）Upper plane（b）.
6. according to claim 4 large-span steel arch without outer construction method for supporting, it is characterised in that：In each support
Beam（3.1）Side be all fixed with 1~3 oblique support plate（3.3）.
7. according to claim 4 large-span steel arch without outer construction method for supporting, it is characterised in that：In "-" type moulding bed
（4）Straight beam（4.1）1~3 side bearing diagonal is respectively fixed on two sides（4.3）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610790598.8A CN106121237B (en) | 2016-08-31 | 2016-08-31 | Large-span steel arch without outer construction method for supporting and assembled welding positioner |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610790598.8A CN106121237B (en) | 2016-08-31 | 2016-08-31 | Large-span steel arch without outer construction method for supporting and assembled welding positioner |
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| Publication Number | Publication Date |
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| CN106121237A CN106121237A (en) | 2016-11-16 |
| CN106121237B true CN106121237B (en) | 2018-08-07 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110629692A (en) * | 2019-07-31 | 2019-12-31 | 中铁上海工程局集团有限公司 | Method for manufacturing and assembling steel beam of totally-enclosed sound barrier of high-speed railway |
| CN113333981A (en) * | 2021-06-03 | 2021-09-03 | 中国电建集团四川工程有限公司 | Large-size pi-shaped pipeline installation method |
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