CN108104460A - A kind of overhanging type framed bent sets up structure and construction method - Google Patents
A kind of overhanging type framed bent sets up structure and construction method Download PDFInfo
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- CN108104460A CN108104460A CN201711119319.6A CN201711119319A CN108104460A CN 108104460 A CN108104460 A CN 108104460A CN 201711119319 A CN201711119319 A CN 201711119319A CN 108104460 A CN108104460 A CN 108104460A
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- framed bent
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- 238000010276 construction Methods 0.000 title claims abstract description 16
- 231100000241 scar Toxicity 0.000 claims abstract description 18
- 229910000831 Steel Inorganic materials 0.000 claims description 39
- 239000010959 steel Substances 0.000 claims description 39
- 239000011435 rock Substances 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 8
- 239000004575 stone Substances 0.000 claims description 6
- 238000007363 ring formation reaction Methods 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 5
- 239000000725 suspension Substances 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 5
- 241000743339 Agrostis Species 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000003014 reinforcing effect 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
- E04G7/00—Connections between parts of the scaffold
- E04G7/02—Connections between parts of the scaffold with separate coupling elements
- E04G7/04—Flexible elements, with or without brackets, e.g. ropes, cables, chains
-
- 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
- E04G5/00—Component parts or accessories for scaffolds
- E04G5/04—Means for fastening, supporting, or bracing scaffolds on or against building constructions
- E04G5/046—Means for fastening, supporting, or bracing scaffolds on or against building constructions for fastening scaffoldings on walls
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- Engineering & Computer Science (AREA)
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- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
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Abstract
The present invention provides a kind of overhanging type framed bents to set up structure, including Cantilever Beams, wall-connecting piece, flexible drawing anchor line, upright bar, leger, small cross bar, bridging；Cantilever Beams set diagonal brace；The wall-connecting piece and scar angle are 45 ~ 90 °；Flexible drawing anchor line one end connection wall-connecting piece, the other end are connected with Cantilever Beams；The bottom of upright bar is arranged in support platform, and support platform is welded on Cantilever Beams；The leger is set along the length direction of framed bent, and leger is connected with upright bar with fastener, is overlapped between two sections of adjacent legers of left and right and is fixed with fastener；The small cross bar is laid on above leger, and small cross bar is not contacted directly with scar；The brace of bridging is connected with leger.The present invention improves the stability of overhanging type framed bent, ensures construction safety, and sets up the similar engineerings such as convenient and simple high gradient slope supporting suitable for water conservancy and hydropower, traffic bridge, mine.
Description
Technical field
The present invention relates to a kind of overhanging type framed bents to set up structure and construction method, is primarily adapted for use in water conservancy and hydropower, access bridge
The similar engineerings such as the high gradient slope supporting in beam, mine.
Background technology
Framed bent is also known as scaffold, refers to construction site as operation and solves vertically and horizontally to transport the various branch set up
Frame is made of steel pipe, fastener etc..With the high speed development of national basis Facilities Construction, the height that framed bent is set up is also increasingly
Height, Safety Risk in Production dramatically increase.It is counted according to state security department, in the security incident number of casualties in engineering, due to row
Accounting caused by frame has an accident is more than 60%.
Framed bent is broadly divided into two kinds, i.e. console mode framed bent and overhanging type framed bent, the former pacifies due to that can ride upon on ground
Full reliability has certain guarantee；And overhanging type framed bent foundation-free, belong to hanging framed bent, security risk is very big.
The content of the invention
Technical problems to be solved first of the invention are：In view of the above problems, a kind of overhanging type framed bent is provided to take
If structure, the similar engineerings such as high gradient slope supporting in water conservancy and hydropower, traffic bridge, mine are primarily adapted for use in.The present invention is adopted
Technical solution is：
A kind of overhanging type framed bent sets up structure, it is characterised in that including Cantilever Beams, wall-connecting piece, the flexible anchor line, upright bar, big of drawing
Cross bar, small cross bar, bridging；
Cantilever Beams set diagonal brace；The wall-connecting piece and scar angle are 45~90 °；Flexible drawing anchor line one end connection connects
Wall part, the other end are connected with Cantilever Beams；The bottom of upright bar is arranged in support platform, and support platform is welded on Cantilever Beams；Institute
It states leger to set along the length direction of framed bent, leger is connected with upright bar with fastener, taken between two sections of adjacent legers of left and right
It connects and is fixed with fastener；The small cross bar is laid on above leger, and small cross bar is not contacted directly with scar；The brace of bridging
It is connected with leger.
Further, when overhanging type framed bent height is more than 12m, the overhanging framed bent, which sets up structure setting, multilayer cantilever
Beam.
Further, Cantilever Beams use 16# channel steels, and overhanging case bay L is set by upright bar advance, and each advance sets one
Root；Enter rock anchorage length not less than 2.5m；Diagonal brace uses 12# channel steels, enters rock generally according to 2.0m or so controls；Cantilever Beams with
The angle Q of diagonal brace generally takes 30~45 °.
Further, wall-connecting piece uses joint bar.
Further, wall-connecting piece uses joint bar, and joint bar should use the spiral not less than φ 25mm；Wall-connecting piece joint bar is long
Not less than 1.0m, enter rock not less than 0.6m, exposed 0.4m.
Further, flexible to draw anchor line using Φ 16mm steel cables, flexibility draws anchor line to be drawn with the horizontal 30~45 ° of updip
Anchor line both ends are no less than 3 rope cards using the fixed cyclization of rope card, often end.
Further, support platform uses 16# channel steels, is welded on the top of Cantilever Beams, and bottom of upright rod is put into support platform
16# channel steel grooves in；Upright bar is fixed on by the spiral that every upright bar corresponds to support platform channel steel position welding Φ 25mm
On support platform channel steel groove, outside upright bar fixed point distance overhanging beam end is not less than 0.1m.
Further, the lap of splice of the upright bar is not less than 1m, and junction is fixed with no less than three fasteners；It is described big
The lap of splice of cross bar is not less than 1m, and junction is fixed with no less than three fasteners.
Further, bridging uses tube material identical with leger, arrives side according to lateral to bottom, longitudinal direction during setting
Principle；Per pass bridging width not less than 4 across, and not less than 6m wide, the brace of bridging and the inclination angle on ground 45~60 ° it
Between.
The present invention also provides the constructions that a kind of overhanging type framed bent sets up structure, it is characterised in that including following step
Suddenly：
(1) basic scar cleaning,
The danger stone of basic scar is subjected to cleaned system before construction, prevents that danger stone comes off in subsequent construction；
(2) Cantilever Beams are set,
Overhanging type framed bent bottom sets Cantilever Beams 2, and Cantilever Beams use 16# channel steels, and overhanging case bay L is stood by suspension scaffold frame body
Bar advance is set, and each advance sets one；Cantilever Beams cantilever span is set by 2.0m, is entered rock anchorage length and is not less than 2.5m,
Cantilever Beams set diagonal brace, and diagonal brace uses 12# channel steels, enters rock generally according to 2.0m or so controls；The angle Q of Cantilever Beams and diagonal brace
Generally take 30~45 °；When overhanging type framed bent height is more than 12m, Cantilever Beams are set in vertical height higher slice；
(3) wall-connecting piece is set：
Wall-connecting piece uses joint bar, and joint bar should use the spiral not less than φ 25mm, and joint bar is with basic scar angle
It 45~90 °, is determined with specific reference to site contour condition, in the case where orographic condition allows, takes 45 °；Wall-connecting piece joint bar is grown not
Less than 1.0m, enter rock not less than 0.6m, exposed 0.4m；Wall-connecting piece is laid according to array pitch between design, for height more than 24m
Overhanging type framed bent, an array pitch cannot be less than two steps two across；
(4) it is flexible to draw anchor line connection
Flexibility draws anchor line using Φ 16mm steel cables, is fixed with Cantilever Beams outer end card of restricting, and draws anchor line with the horizontal 45 ° of updip
Angle, drawing anchor line both ends, often end is no less than 3 rope cards, and is socketed respectively with wall-connecting piece and Cantilever Beams using the fixed cyclization of rope card；
(5) upright bar connection and setting
The bottom of upright bar is arranged in support platform, and support platform uses 16# channel steels, and support platform is welded on Cantilever Beams
On, bottom of upright rod is put into the 16# channel steel grooves of support platform；The screw-thread steel of every upright bar corresponding channel-section steel position welding Φ 25mm
Upright bar is fixed on channel steel groove by muscle, and outside upright bar fixed point distance overhanging beam end is not less than 0.1m；
(6) leger is set
Leger is connected with upright bar with fastener；, it overlaps between two sections of adjacent legers of left and right and is fixed with fastener, overlap joint length
Degree is not less than 1m, no less than three fasteners；
(7) small cross bar is set
Small cross bar is laid on leger top, and the two is fixed with fastener, and small cross bar uses the steel tubing identical with leger
Material；Small cross bar is not contacted directly with basic scar, and the two standoff distance is generally in 0.2m or so；
(8) bridging is set
The brace of bridging is connected with leger, and bridging uses tube material identical with leger, according to horizontal stroke during setting
To the principle on earth, longitudinally arriving side；Per pass bridging width is not less than 4 across and not less than 6m wide, the brace of bridging and ground
Inclination angle between 45~60 °.
The present invention improves the stability of overhanging type framed bent, ensures construction safety, and set up it is convenient and simple, suitable for water conservancy
The similar engineerings such as the high gradient slope supporting in water power, traffic bridge, mine.
Description of the drawings：
Fig. 1 is that overhanging type framed bent of the present invention sets up constructive embodiment in the local front schematic view of a typical case.
Fig. 2 is that overhanging type framed bent of the present invention sets up constructive embodiment in the local sectional view of another typical case.
Fig. 3 is upright bar and leger by the fixed schematic diagram of fastener.
Fig. 4 is the schematic diagram of wall-connecting piece.
Fig. 5 is that leger overlaps and by the fixed schematic diagram of fastener.
Specific embodiment
Referring to the drawings.Overhanging type framed bent provided by the present invention sets up structure, including Cantilever Beams 2, wall-connecting piece 3, flexible drawing
Anchor line 4, upright bar 5, leger 6, small cross bar 7, bridging 8.
The present invention is a kind of to be overhang framed bent and sets up the embodiment of construction method and be：
A. basic scar 1 is cleared up：As shown in Figure 2, for ensure framed bent set up, run and demolishing process in safety, apply
The danger stone of basic scar 1 is subjected to cleaned system before work, the stone that prevents from endangering in subsequent construction comes off, jeopardize lower part construction personnel,
Equipment safety.
B. Cantilever Beams 2 are set：Overhanging type framed bent bottom sets Cantilever Beams 2, and Cantilever Beams 2 are generally using 16# channel steels, Cantilever Beams
2 spacing L are set by 5 advance of suspension scaffold frame body upright bar, and each advance sets one.2 cantilever span L1 of Cantilever Beams generally presses 2.0m
It sets, enters rock anchorage length L2 not less than 2.5m, Cantilever Beams 2 set diagonal brace 20, and diagonal brace is generally using 12# channel steels, diagonal brace overall length
6.5m enters rock generally according to 2.0m or so controls.Cantilever Beams 2 and the angle Q of diagonal brace 20 generally take 30~45 °, and angle was not easy
Small, specific value is according to site contour conditional decision.
To ensure framed bent safety, when overhanging type framed bent height is more than 12m, should Cantilever Beams be set in vertical height higher slice
2, the story height H of Cantilever Beams 2 is generally 8~12m, and specific value is determined depending on framed bent whole height.
C. wall-connecting piece 3 is set：Overhanging type framed bent wall-connecting piece 3 uses joint bar, and joint bar should use the screw thread not less than φ 25mm
Reinforcing bar, joint bar are 45~90 ° with basic 1 angle of scar, are determined with specific reference to site contour condition, in the feelings that orographic condition allows
Under condition, 45 ° are taken；3 joint bar of wall-connecting piece length enters rock not less than 0.6m, exposed 0.4m not less than 1.0m；Wall-connecting piece 3 is according between design
Array pitch is laid, for height be more than 24m overhanging type framed bent, an array pitch cannot be less than two steps two across.
D. it is flexible that anchor line 4 is drawn to connect：Flexibility draws anchor line 4 to be fixed using Φ 16mm steel cables and 2 outer end of Cantilever Beams rope card, draws anchor
Rope 4 draws 4 both ends of anchor line to block fixed cyclization 40 using rope, often end is no less than 3 rope cards, and difference with the horizontal updip 45° angle
It is socketed with wall-connecting piece exposed parts and Cantilever Beams 2.
E. upright bar 5 is set：The upright bar 5 of framed bent is arranged in support platform 21, and support platform 21 uses 16# channel steels, support
Platform 21 is welded on Cantilever Beams 2, and 5 bottom of upright bar is put into the 16# channel steel grooves of support platform 21.Every 5 corresponding groove of upright bar
Upright bar is fixed on channel steel groove by steel position welding Φ 25mm, the spiral of L=0.2m, and outside upright bar fixed point distance is outstanding
2 end of outrigger is not less than 0.1m.
F. leger 6 is set：Leger 6 and upright bar 5 are connected with fastener 9, are overlapped simultaneously between two sections of adjacent legers of left and right
It is fixed with fastener 9, leger 6 preferably uses the steel pipe of 6m, and to reduce overlap joint, during overlap joint, the lap of splice is not less than 1m, no less than three
A fastener.
G. small cross bar 7 is set：Small cross bar 7 is laid on 6 top of leger, and the two fastener 9 is fixed, small cross bar 7 using with
6 identical tube material of leger；Small cross bar 7 should not be contacted directly with basic scar 1, and the two standoff distance is generally left in 0.2m
It is right.
H. bridging 8 is set：The brace of bridging is connected with leger fastener 9, and bridging 8 uses and 6 phase of leger
Same tube material, requirement is according to the principle that side is arrived lateral to bottom, longitudinal direction during setting；8 width of per pass bridging be no less than 4 across,
And no less than 6m wide, the brace of bridging 8 and the inclination angle on ground should be between 45~60 °.
Above description is not limitation of the present invention, and the present invention is also not limited to the example above, the art it is common
Technical staff, within the scope of the invention, the variation made change addition or replacement, should all belong to the scope of protection of the present invention.
Claims (10)
1. a kind of overhanging type framed bent sets up structure, it is characterised in that including Cantilever Beams, wall-connecting piece, flexible drawing anchor line, upright bar, big horizontal stroke
Bar, small cross bar, bridging；
Cantilever Beams set diagonal brace；
The wall-connecting piece and scar angle are 45 ~ 90 °；
Flexible drawing anchor line one end connection wall-connecting piece, the other end are connected with Cantilever Beams；
The bottom of upright bar is arranged in support platform, and support platform is welded on Cantilever Beams；
The leger is set along the length direction of framed bent, and leger is connected with upright bar with fastener, the adjacent two sections big horizontal stroke in left and right
It overlaps between bar and is fixed with fastener；
The small cross bar is laid on above leger, and small cross bar is not contacted directly with scar；
The brace of bridging is connected with leger.
2. a kind of overhanging type framed bent as described in claim 1 sets up structure, it is characterised in that when overhanging type framed bent height is more than
During 12m, the overhanging framed bent, which sets up structure setting, multilayer cantilever beam.
3. a kind of overhanging type framed bent as described in claim 1 sets up structure, it is characterised in that Cantilever Beams use 16# channel steels, hang
Outrigger spacing L is set by upright bar advance, and each advance sets one；Enter rock anchorage length not less than 2.5m；Diagonal brace uses 12# slots
Steel enters rock generally according to 2.0m or so controls；The angle Q of Cantilever Beams and diagonal brace generally takes 30 ~ 45 °.
4. a kind of overhanging type framed bent as described in claim 1 sets up structure, it is characterised in that wall-connecting piece uses joint bar.
5. a kind of overhanging type framed bent as described in claim 1 sets up structure, it is characterised in that wall-connecting piece uses joint bar, and joint bar should
Using the spiral not less than φ 25mm；Wall-connecting piece joint bar length enters rock not less than 0.6m, exposed 0.4m not less than 1.0m.
6. a kind of overhanging type framed bent as described in claim 1 sets up structure, it is characterised in that flexibility draws anchor line to use Φ 16mm
Steel cable, flexibility draw anchor line that anchor line both ends is drawn to use the fixed cyclization of rope card, often hold no less than 3 with the horizontal 30 ~ 45o of updip
Rope card.
7. a kind of overhanging type framed bent as described in claim 1 sets up structure, it is characterised in that support platform uses 16# channel steels,
The top of Cantilever Beams is welded on, bottom of upright rod is put into the 16# channel steel grooves of support platform；Every upright bar corresponds to support platform slot
Upright bar is fixed on support platform channel steel groove by the spiral of steel position welding Φ 25mm, and outside upright bar fixed point distance is outstanding
Outrigger end is not less than 0.1m.
8. a kind of overhanging type framed bent as described in claim 1 sets up structure, it is characterised in that the lap of splice of the upright bar is not
Less than 1m, junction is fixed with no less than three fasteners；The lap of splice of the leger is not less than 1m, and junction is with being no less than
Three fasteners are fixed.
9. a kind of overhanging type framed bent as described in claim 1 sets up structure, it is characterised in that bridging uses and leger phase
Same tube material, according to the principle that side is arrived lateral to bottom, longitudinal direction during setting；Per pass bridging width is not less than 4 across and being not less than
6m wide, the brace of bridging and the inclination angle on ground are between 45 ~ 60 °.
10. a kind of overhanging type framed bent sets up the construction of structure, it is characterised in that comprises the following steps：
（1）Basic scar cleaning,
The danger stone of basic scar is subjected to cleaned system before construction, prevents that danger stone comes off in subsequent construction；
（2）Cantilever Beams are set,
Overhanging type framed bent bottom sets Cantilever Beams 2, and Cantilever Beams use 16# channel steels, and overhanging case bay L is indulged by suspension scaffold frame body upright bar
Away from setting, each advance sets one；Cantilever Beams cantilever span is set by 2.0m, enters rock anchorage length not less than 2.5m, overhanging
Beam sets diagonal brace, and diagonal brace uses 12# channel steels, enters rock generally according to 2.0m or so controls；The angle Q of Cantilever Beams and diagonal brace generally takes
30~45°；When overhanging type framed bent height is more than 12m, Cantilever Beams are set in vertical height higher slice；
（3）Wall-connecting piece is set：
Wall-connecting piece uses joint bar, and joint bar should use the spiral not less than φ 25mm, and joint bar and basic scar angle be 45 ~
It 90 °, is determined with specific reference to site contour condition, in the case where orographic condition allows, takes 45 °；Wall-connecting piece joint bar length is not less than
1.0m enters rock not less than 0.6m, exposed 0.4m；Wall-connecting piece is laid according to array pitch between design, outstanding more than 24m for height
Choose formula framed bent, an array pitch cannot be less than two steps two across；
（4）Flexibility draws anchor line connection
Flexibility draws anchor line using Φ 16mm steel cables, is fixed with Cantilever Beams outer end card of restricting, and draws anchor line with the horizontal updip 45o angles,
Anchor line both ends are drawn using the fixed cyclization of rope card, often end is no less than 3 rope cards, and respectively with wall-connecting piece exposed parts and overhanging beam casing
It connects；
（5）Upright bar is connected and set
The bottom of upright bar is arranged in support platform, and support platform uses 16# channel steels, and support platform is welded on Cantilever Beams, is stood
Bar bottom is put into the 16# channel steel grooves of support platform；The spiral of every upright bar corresponding channel-section steel position welding Φ 25mm will
Upright bar is fixed on channel steel groove, and outside upright bar fixed point distance overhanging beam end is not less than 0.1m；
（6）Leger is set
Leger is connected with upright bar with fastener；, overlap between two sections of adjacent legers of left and right and fixed with fastener, the lap of splice is not
Less than 1m, no less than three fasteners；
（7）Small cross bar is set
Small cross bar is laid on leger top, and the two is fixed with fastener, and small cross bar uses the tube material identical with leger；It is small
Cross bar is not contacted directly with basic scar, and the two standoff distance is generally in 0.2m or so；
（8）Bridging is set
The brace of bridging is connected with leger, and bridging uses tube material identical with leger, during setting according to lateral to
The principle on side is arrived at bottom, longitudinal direction；Per pass bridging width is not less than 4 across and not less than 6m wide, the brace of bridging and inclining for ground
Angle is between 45 ~ 60 °.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711119319.6A CN108104460A (en) | 2017-11-14 | 2017-11-14 | A kind of overhanging type framed bent sets up structure and construction method |
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| CN201711119319.6A CN108104460A (en) | 2017-11-14 | 2017-11-14 | A kind of overhanging type framed bent sets up structure and construction method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113530192A (en) * | 2021-08-16 | 2021-10-22 | 中国铁道科学研究院集团有限公司 | Multi-support overhanging scaffold structure of ultrahigh vertical rock slope |
| CN113668832A (en) * | 2021-08-16 | 2021-11-19 | 中国铁道科学研究院集团有限公司 | Single-support overhanging scaffold structure of ultrahigh vertical rock slope |
| CN113738086A (en) * | 2021-09-10 | 2021-12-03 | 重庆一零七市政建设工程有限公司 | High and steep dangerous rock attached type operation platform |
| CN114165033A (en) * | 2021-12-27 | 2022-03-11 | 中国铁道科学研究院集团有限公司 | Construction method of single-support overhanging scaffold for ultra-high steep rock slope |
| CN114182943A (en) * | 2021-12-27 | 2022-03-15 | 中国铁道科学研究院集团有限公司 | Construction method of multi-support overhanging scaffold for ultra-high steep rock slope |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113530192A (en) * | 2021-08-16 | 2021-10-22 | 中国铁道科学研究院集团有限公司 | Multi-support overhanging scaffold structure of ultrahigh vertical rock slope |
| CN113668832A (en) * | 2021-08-16 | 2021-11-19 | 中国铁道科学研究院集团有限公司 | Single-support overhanging scaffold structure of ultrahigh vertical rock slope |
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| CN113738086B (en) * | 2021-09-10 | 2023-03-03 | 重庆一零七市政建设工程有限公司 | High and steep dangerous rock attached type operation platform |
| CN114165033A (en) * | 2021-12-27 | 2022-03-11 | 中国铁道科学研究院集团有限公司 | Construction method of single-support overhanging scaffold for ultra-high steep rock slope |
| CN114182943A (en) * | 2021-12-27 | 2022-03-15 | 中国铁道科学研究院集团有限公司 | Construction method of multi-support overhanging scaffold for ultra-high steep rock slope |
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Application publication date: 20180601 |