CN109707100A - A kind of device and arch camber method of the automatic arch camber of parallel chord truss - Google Patents
A kind of device and arch camber method of the automatic arch camber of parallel chord truss Download PDFInfo
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- CN109707100A CN109707100A CN201910129440.XA CN201910129440A CN109707100A CN 109707100 A CN109707100 A CN 109707100A CN 201910129440 A CN201910129440 A CN 201910129440A CN 109707100 A CN109707100 A CN 109707100A
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- 230000000452 restraining effect Effects 0.000 claims abstract description 15
- 238000005452 bending Methods 0.000 claims description 6
- 230000001154 acute effect Effects 0.000 claims description 3
- 239000003351 stiffener Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 238000000465 moulding Methods 0.000 abstract description 8
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000003466 welding Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
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- 238000004519 manufacturing process Methods 0.000 description 2
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Abstract
A kind of device of the automatic arch camber of parallel chord truss of the invention, including arc groove pedestal, support and truss, support include support plate and the restraining plate at the top of support plate；Arc groove is processed at the top of arc groove pedestal, arc groove pedestal is divided into two groups.Arch camber method based on described device comprises steps of determining that springing height；Two groups of arc groove pedestals are welded according to springing height and truss total length；Chord member of truss is individually positioned on arc groove；Among at the combination that vertical bar is placed at the top of pairs of support plate, vertical bar both ends are respectively welded on truss, brace are placed at the top of restraining plate, brace both ends are respectively welded on truss.The present invention realizes automatic moulding of truss assembly arch camber, good product quality, and cost reduces, and spring quantum deviation is 1-2mm, and work efficiency is high.
Description
Technical field
The invention belongs to technical field of buildings, and in particular to a kind of device of the automatic arch camber of parallel chord truss and arch camber side
Method.
Background technique
At present in steel structure truss construction, direct setting-out assembly arch camber at the corners docking such as triangular truss uses is put down
Row string truss often takes cold arch camber or heating arch camber, applies the operating method arch camber of external force with jack, and each truss structure rises
Arch and camber molding pass through positioning and look for benchmark, apply external force, measure camber, then apply external force, repeated multiple times completion whole operation
Process.Existing arch camber method haves the shortcomings that following: arch camber and camber difficult forming, spring quantum can not accurately control；Arch camber matter
Measure unstable, deviation is larger, therefore results in being extremely difficult to specification and design requirement, and each truss structure arch camber and camber molding are passed through
Benchmark is looked in positioning, and repeated multiple times completion, whole operation process is time-consuming, and process is tedious, and labor intensity of operating staff is big, and there is peace
Full hidden danger.
Summary of the invention
Aiming at the problems existing in the prior art, the present invention provides a kind of truss assembly spring quantum automatic moulding, a purlin
The every Pin of arching degree size keep that the same numerical value is constant, quality is good and the device of the automatic arch camber of stable parallel chord truss and
Arch camber method.
The invention adopts the following technical scheme:
A kind of device of the automatic arch camber of parallel chord truss, which is characterized in that described device includes multiple arcs slot pedestal
(7), multiple supports (11) and truss；It is machined with arc groove (8) at the top of arc groove pedestal (7), multiple arcs slot pedestal (7) is divided into
Two groups, two groups of arc groove pedestals (7) are arc-shaped respectively to be welded in plate platform, the radian of two groups of every group of arc groove pedestals (7)
It is identical, bending direction is identical, the both ends of two groups of arc groove pedestals (7) are aligned respectively and the line at both ends is parallel to each other；Support
(11) it is integrally formed by support plate (9) and restraining plate (10), restraining plate (10) is located at the top of support plate (9)；Support (11) is pairs of
It is welded in the plate platform between two groups of arc groove pedestals (7)；Truss is by the first chord member of truss (1), the second chord member of truss
(2), multiple vertical bars (3), multiple braces (4) composition, the first chord member of truss (1) and the second chord member of truss (2) are individually positioned in arc
On shape slot (8), among vertical bar (3) is placed at the combination at the top of pairs of support plate (9), brace (4) is placed on restraining plate (10)
Top, the both ends of vertical bar (3) are respectively welded on the first chord member of truss (1) and the second chord member of truss (2), the both ends of brace (4)
It is respectively welded on the first chord member of truss (1) and the second chord member of truss (2).
According to above-mentioned device, which is characterized in that the springing height of the first chord member of truss (1) is the first chord member of truss (1)
(0.92/500)-(1.08/500) of total length, the springing height of the second chord member of truss (2) are the second chord member of truss (2) overall length
(0.92/500)-(1.08/500) of degree.
According to above-mentioned device, which is characterized in that the vertical bar (3) and the line at the first chord member of truss (1) both ends are mutual
Vertically.
According to above-mentioned device, which is characterized in that folded by the line at the brace (4) and the first chord member of truss (1) both ends
Acute angle degree be 60 ° -64 °.
According to above-mentioned device, which is characterized in that the pairs of welding processing ribbed stiffener in arc groove pedestal (7) the lower part two sides
(5)。
According to above-mentioned device, which is characterized in that 2-3 is arranged below to support (11), the brace in the vertical bar (3)
(4) 2-3 is arranged below to support (11).
According to above-mentioned device, which is characterized in that the arc groove (8) is set with chord member and places backing plate (6).
A kind of arch camber method based on above-mentioned apparatus, which is characterized in that the described method comprises the following steps:
Step 1: determining the springing height of the first chord member of truss (1) and the springing height of the second chord member of truss (2), first
The springing height of chord member of truss (1) is (0.92/500)-(1.08/500) of the first chord member of truss (1) total length, the second truss
The springing height of chord member (2) is (0.92/500)-(1.08/500) of the second chord member of truss (2) total length；
Step 2: according to the total length of the first chord member of truss (1) in step 1 and springing height, the second chord member of truss (2)
Total length and springing height, be welded on two groups of arc groove pedestals (7) are arc-shaped respectively in plate platform, two groups of arc groove bases
The radian of every group of seat (7) is identical, bending direction is identical, and the both ends of two groups of arc groove pedestals (7) are aligned respectively and the line at both ends
It is parallel to each other；
Step 3: the first chord member of truss (1) and the second chord member of truss (2) are individually positioned in two groups of arc groove pedestals (7)
On the arc groove (8) at top；
Step 4: support (11) is welded in the plate platform between two groups of arc groove pedestals (7) in pairs, by vertical bar
(3) among being placed at the combination at the top of pairs of support plate (9), brace (4) is placed at the top of restraining plate (10)；
Step 5: the both ends of vertical bar (3) are respectively welded on the first chord member of truss (1) and the second chord member of truss (2), are incited somebody to action
The both ends of brace (4) are respectively welded on the first chord member of truss (1) and the second chord member of truss (2).
Advantageous effects of the invention: the present invention realizes automatic moulding of truss assembly arch camber, is suitable for round steel
The structure arch camber production of material parallel chord truss and camber molding, can also be applied to the flat of steel pipe, angle steel, square steel and i shaped steel
The truss arch camber production of row string and camber molding, good product quality, cost reduce, and spring quantum deviation is not more than 1-2mm, work effect
Rate is high, and especially application efficiency is higher in the construction of batch parallel chord truss.
Detailed description of the invention
Fig. 1 is parallel chord truss structural schematic diagram in the present invention；
Fig. 2 is the structural schematic diagram of arc groove pedestal in the present invention；
Fig. 3 is the structural schematic diagram of support in the present invention；
Fig. 4 is the spring and springing height schematic diagram of chord member of truss in the embodiment of the present invention 1；
Fig. 5 is truss in the embodiment of the present invention 1 according to the arch camber schematic diagram of the arch camber mode of Fig. 4.
Specific embodiment
Referring to Fig. 1-3, a kind of device of the automatic arch camber of parallel chord truss of the invention, including it is multiple arcs slot pedestal 7, more
A support 11 and truss；Arc groove 8 is machined at the top of arc groove pedestal 7, it is two groups that multiple arcs slot pedestal 7, which is divided to, two groups of arcs
Slot pedestal 7 is arc-shaped respectively to be welded in plate platform, and two groups 7 every groups of arc groove pedestal of radian is identical, bending direction is identical,
The both ends of two groups of arc groove pedestals 7 are aligned respectively and the line at both ends is parallel to each other, and 7 lower part two sides of arc groove pedestal are welded in pairs
Process ribbed stiffener 5, it is preferred that arc groove 8 is set with chord member and places backing plate 6；Support 11 by support plate 9 and the one of restraining plate 10 at
Type, restraining plate 10 are located at 9 top of support plate；Support 11 is welded in the plate platform between two groups of arc groove pedestals 7 in pairs；Purlin
Frame is made of the first chord member of truss 1, the second chord member of truss 2, multiple vertical bars 3, multiple braces 4, the first chord member of truss 1 and the second purlin
Frame chord member 2 is individually positioned on the arc groove 8 at two groups of arc groove pedestals, 7 top, and the springing height of the first chord member of truss 1 is first
(0.92/500)-(1.08/500) of 1 total length of chord member of truss, the springing height of the second chord member of truss 2 are the second chord member of truss 2
(0.92/500)-(1.08/500) of total length.Among vertical bar 3 is placed at the combination at pairs of 9 top of support plate, under vertical bar 3
Face is equipped with 2-3 to support 11, and brace 4 is placed on 10 top of restraining plate, and 2-3 is arranged below to support 11 in brace 4.The two of vertical bar 3
End is respectively welded on the first chord member of truss 1 and the second chord member of truss 2, and vertical bar 3 and the line at 1 both ends of the first chord member of truss are mutual
Vertically.The both ends of brace 4 are respectively welded on the first chord member of truss 1 and the second chord member of truss 2, brace 4 and the first chord member of truss 1
Acute angle degree folded by the line at both ends is 60 ° -64 °.
The arch camber method of apparatus of the present invention, comprising the following steps: step 1: the springing height of the first chord member of truss 1 is determined
With the springing height of the second chord member of truss 2, the springing height of the first chord member of truss 1 is 1 total length of the first chord member of truss
(0.92/500)-(1.08/500), the springing height of the second chord member of truss 2 are (the 0.92/ of 2 total length of the second chord member of truss
500)-(1.08/500)；Step 2: according to the total length of the first chord member of truss 1 in step 1 and springing height, the second truss string
The total length and springing height of bar 2 are welded on two groups of arc groove pedestals 7 are arc-shaped respectively in plate platform, two groups of arc grooves
The radian that 7 every groups of pedestal is identical, bending direction is identical, and the both ends of two groups of arc groove pedestals 7 are aligned respectively and the line at both ends is mutual
It is parallel；Step 3: the first chord member of truss 1 and the second chord member of truss 2 are individually positioned in the arc at two groups of arc groove pedestals, 7 top
On shape slot 8；Step 4: support 11 is welded in the plate platform between two groups of arc groove pedestals 7 in pairs, vertical bar 3 is placed
Among at the combination at 9 top of pairs of support plate, brace 4 is placed on 10 top of restraining plate；Step 5: by the both ends of vertical bar 3
It is respectively welded on the first chord member of truss 1 and the second chord member of truss 2, the both ends of brace 4 is respectively welded in the first chord member of truss 1
On the second chord member of truss 2.
Embodiment 1
The length of parallel chord truss is 36 meters, and the first chord member of truss and the second chord member of truss are 36 meters, chord member of truss
Springing height is the 1/500 of chord member of truss total length, i.e. the springing height of chord member of truss is 72mm, according to the length of chord member of truss
And springing height, it is welded on two groups of arc groove pedestals are arc-shaped respectively in plate platform, when welding, referring to fig. 4 and Fig. 5,
Two sides at 18 meters of the midpoint of chord member of truss every 3 meters of welding, one arc groove pedestal, the pad of two groups of arc groove pedestals and
Welding and assembling height is respectively as follows: 18000mm, 72mm；15000mm,60mm；12000mm,48mm；9000mm,36mm；6000mm,
24mm；3000mm,12mm；0mm,0mm.First chord member of truss and the second chord member of truss are individually positioned in two groups of arc groove pedestals
On the arc groove 8 at top；Support is welded in the plate platform between two groups of arc groove pedestals in pairs, vertical bar is placed on into
Among at the combination at the top of support plate, brace is placed at the top of restraining plate；The both ends of vertical bar are respectively welded in the first purlin
On frame chord member and the second chord member of truss, the both ends of brace are respectively welded on the first chord member of truss and the second chord member of truss.It is real
Automatic moulding of truss assembly arch camber in example 1 is applied, spring quantum deviation is 1mm.
Claims (8)
1. a kind of device of the automatic arch camber of parallel chord truss, which is characterized in that described device include multiple arcs slot pedestal (7),
Multiple supports (11) and truss；It is machined with arc groove (8) at the top of arc groove pedestal (7), multiple arcs slot pedestal (7) is divided into two
Group, two groups of arc groove pedestals (7) are arc-shaped respectively to be welded in plate platform, the radian phase of two groups of every group of arc groove pedestals (7)
Identical with, bending direction, the both ends of two groups of arc groove pedestals (7) are aligned respectively and the line at both ends is parallel to each other；Support (11)
It is integrally formed by support plate (9) and restraining plate (10), restraining plate (10) is located at the top of support plate (9)；Support (11) welds in pairs
In plate platform between two groups of arc groove pedestals (7)；Truss is by the first chord member of truss (1), the second chord member of truss (2), more
A vertical bar (3), multiple braces (4) composition, the first chord member of truss (1) and the second chord member of truss (2) are individually positioned in arc groove (8)
On, among vertical bar (3) is placed at the combination at the top of pairs of support plate (9), brace (4) is placed at the top of restraining plate (10), is erected
The both ends of bar (3) are respectively welded on the first chord member of truss (1) and the second chord member of truss (2), and the both ends of brace (4) are respectively welded
In on the first chord member of truss (1) and the second chord member of truss (2).
2. the apparatus according to claim 1, which is characterized in that the springing height of the first chord member of truss (1) is the first truss
(0.92/500)-(1.08/500) of chord member (1) total length, the springing height of the second chord member of truss (2) are the second chord member of truss
(2) (0.92/500)-(1.08/500) of total length.
3. the apparatus according to claim 1, which is characterized in that the company of the vertical bar (3) and the first chord member of truss (1) both ends
Line is orthogonal.
4. device according to claim 3, which is characterized in that the company of the brace (4) and the first chord member of truss (1) both ends
Acute angle degree folded by line is 60 ° -64 °.
5. the apparatus according to claim 1, which is characterized in that arc groove pedestal (7) the lower part two sides are welded in pairs to be added
Work ribbed stiffener (5).
6. the apparatus according to claim 1, which is characterized in that 2-3 is arranged below to support (11), institute in the vertical bar (3)
It states brace (4) and 2-3 is arranged below to support (11).
7. the apparatus according to claim 1, which is characterized in that the arc groove (8) is set with chord member and places backing plate (6).
8. a kind of arch camber method based on claim 1 described device, which is characterized in that the described method comprises the following steps:
Step 1: the springing height of the first chord member of truss (1) and the springing height of the second chord member of truss (2), the first truss are determined
The springing height of chord member (1) is (0.92/500)-(1.08/500) of the first chord member of truss (1) total length, the second chord member of truss
(2) springing height is (0.92/500)-(1.08/500) of the second chord member of truss (2) total length；
Step 2: according to the total length of the first chord member of truss (1) in step 1 and springing height, the second chord member of truss (2) it is total
Length and springing height are welded on two groups of arc groove pedestals (7) are arc-shaped respectively in plate platform, two groups of arc groove pedestals
(7) every group of radian is identical, bending direction is identical, and the both ends of two groups of arc groove pedestals (7) are aligned respectively and the line at both ends is mutual
It is parallel；
Step 3: the first chord member of truss (1) and the second chord member of truss (2) are individually positioned at the top of two groups of arc groove pedestals (7)
Arc groove (8) on；
Step 4: support (11) is welded in the plate platform between two groups of arc groove pedestals (7) in pairs, vertical bar (3) is put
It sets among at the combination at the top of pairs of support plate (9), brace (4) is placed at the top of restraining plate (10)；
Step 5: the both ends of vertical bar (3) are respectively welded on the first chord member of truss (1) and the second chord member of truss (2), by brace
(4) both ends are respectively welded on the first chord member of truss (1) and the second chord member of truss (2).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910129440.XA CN109707100B (en) | 2019-02-21 | 2019-02-21 | Automatic arching device and method for parallel chord trusses |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910129440.XA CN109707100B (en) | 2019-02-21 | 2019-02-21 | Automatic arching device and method for parallel chord trusses |
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| CN109707100B CN109707100B (en) | 2024-06-18 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1253356A (en) * | 1985-11-05 | 1989-05-02 | Robert G. Mccracken | Cambered truss header for a shoring structure |
| CN101629456A (en) * | 2009-08-18 | 2010-01-20 | 北京城建精工钢结构工程有限公司 | Three-dimensional steel truss assembling support frame shaped like a Chinese character qie and construction method for assembling steel truss |
| US20150047287A1 (en) * | 2013-08-13 | 2015-02-19 | Chris A. Nelson | Modular Truss System |
| CN108316479A (en) * | 2018-04-16 | 2018-07-24 | 中建二局第三建筑工程有限公司 | Truss arched door system and construction method thereof |
| CN108708497A (en) * | 2018-04-08 | 2018-10-26 | 五冶集团上海有限公司 | A kind of large span ladder type roofing steel truss stand manufacturing method |
| CN209817271U (en) * | 2019-02-21 | 2019-12-20 | 金川集团股份有限公司 | Automatic arching device for parallel chord truss |
-
2019
- 2019-02-21 CN CN201910129440.XA patent/CN109707100B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1253356A (en) * | 1985-11-05 | 1989-05-02 | Robert G. Mccracken | Cambered truss header for a shoring structure |
| CN101629456A (en) * | 2009-08-18 | 2010-01-20 | 北京城建精工钢结构工程有限公司 | Three-dimensional steel truss assembling support frame shaped like a Chinese character qie and construction method for assembling steel truss |
| US20150047287A1 (en) * | 2013-08-13 | 2015-02-19 | Chris A. Nelson | Modular Truss System |
| CN108708497A (en) * | 2018-04-08 | 2018-10-26 | 五冶集团上海有限公司 | A kind of large span ladder type roofing steel truss stand manufacturing method |
| CN108316479A (en) * | 2018-04-16 | 2018-07-24 | 中建二局第三建筑工程有限公司 | Truss arched door system and construction method thereof |
| CN209817271U (en) * | 2019-02-21 | 2019-12-20 | 金川集团股份有限公司 | Automatic arching device for parallel chord truss |
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