CN202323726U - Lifting and sling device of plate girders - Google Patents
Lifting and sling device of plate girders Download PDFInfo
- Publication number
- CN202323726U CN202323726U CN2011204546308U CN201120454630U CN202323726U CN 202323726 U CN202323726 U CN 202323726U CN 2011204546308 U CN2011204546308 U CN 2011204546308U CN 201120454630 U CN201120454630 U CN 201120454630U CN 202323726 U CN202323726 U CN 202323726U
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- China
- Prior art keywords
- hoist cable
- plate
- lifting
- girder
- snap ring
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Abstract
The utility model relates to a lifting and sling device of plate girders, which comprises slings, clamping rings, lifting lugs, and embedded bolts. One end of each of the slings is arranged on a crown block fixedly, the other end of each of the slings is tied on each of the clamping rings, the embedded bolts are fixedly arranged on a plate girder to be moved, the lifting lugs are arranged on the embedded bolts fixedly, the clamping rings and the lifting lugs can be performed lifting, and the slings, the clamping rings, the lifting lugs and the embedded bolts are bilaterally symmetrical and sequentially arranged in front-and-rear direction. The device has the advantages of being simple in structure, scientific and reasonable in design, convenient to operate, flexible in use, wide in application, safe, reliable, good in innovation and the like.
Description
Technical field
The utility model belongs to the construction of railways apparatus field, particularly a kind of plate-girder lifting hoist cable device.
Background technology
Precast hollow plate-girder normal cluster that adopts in moving beam and erection process lifted in the past, and this technology is fit to have between large scale prefabricated box beam and the beam slab bridge erection lifting of broad constuction joint.But when running into the narrow and small situation of plate-girder erection construction seam; The wire rope of tradition binding lifting just becomes the obstacle that adjacent plate-girder is drawn close; If the reserving hole reeve will influence the plate-girder quality on plate-girder, so the cluster lifting is not suitable for moving beam and setting up of all precast hollow plate-girders.
Summary of the invention
The purpose of the utility model is to overcome the deficiency of prior art, provides a kind of easy and simple to handle, uses flexibly, and is applied widely, safe and reliable plate-girder lifting hoist cable device.
The utility model solves its technical problem and realizes through following technical scheme:
A kind of plate-girder lifting hoist cable device; It is characterized in that: be made up of hoist cable, snap ring, hanger, pre-embedded bolt, hoist cable one end and overhead traveling crane install, and hoist cable other end bolt is a snap ring; Treating to install pre-embedded bolt on the mobile plate-girder; On pre-embedded bolt, install hanger, said snap ring can lift with hanger, and said hoist cable, snap ring, hanger, pre-embedded bolt are side by side and symmetrical structure.
And said hoist cable is interactive wire rope.
And said snap ring is a large-tonnage D type lockset snap ring.
Advantage of the utility model and beneficial effect are:
1. this plate-girder lifts the hoist cable device; Be employed in plate-girder top the mode that hanger lifts by crane is installed; Do not receive the influence and the restriction of plate-girder erection construction seam size, overcome because of plate-girder erection construction seam is too little can't be with the problem of cluster lifting, constructing operation is more flexible.
2. this plate-girder lifting hoist cable device does not need binding during lifting, operates simpler.
3. what this plate-girder lifting hoist cable device adopted is force balance, and Current Collector Sleave receives active force minimum, and safety is higher.
4. advantages such as this plate-girder lifting hoist cable apparatus structure is simple, and design science is reasonable, has easy and simple to handlely, uses flexibly, and is applied widely, safe and reliable have higher novelty.
Description of drawings
Fig. 1 is the structural representation of the utility model plate-girder lifting hoist cable device;
Fig. 2 is the utility model hoist cable design force diagram;
Fig. 3 is the left view of Fig. 1.
1-overhead traveling crane, 2-hoist cable, 3-snap ring, 4-hanger, 5-pre-embedded bolt, 6-plate-girder
The specific embodiment
Through specific embodiment the utility model is done further to detail below, following examples are descriptive, are not determinate, can not limit the protection domain of the utility model with this.
A kind of plate-girder lifting hoist cable device; It is made up of hoist cable 2, snap ring 3, hanger 4, pre-embedded bolt 5; Hoist cable one end and overhead traveling crane 1 install, and hoist cable other end bolt is a snap ring, on plate-girder to be moved 6, installs pre-embedded bolt; Treating to install hanger on the mobile plate-girder pre-embedded bolt, said snap ring can lift with hanger.Before and after said hoist cable, snap ring, hanger, pre-embedded bolt are side by side and the bilateral symmetry structure.As shown in Figure 1, said hoist cable, snap ring, hanger, pre-embedded bolt are along two groups of plate-girder width bilateral symmetry.And, hoist cable, snap ring, hanger, pre-embedded bolt are installed before and after the two ends of the length direction of plate-girder side by side, and fix, as shown in Figure 3 with the hoist cable and the same overhead traveling crane of end.
Hoist cable is identical 4 interactive wire rope, and the fag end place returns enrolls about 25cm in the rope, and the one of which end is packed on the overhead traveling crane, and other end bolt is a snap ring.
Snap ring is identical 4 large-tonnage D type lockset snap rings.
Pre-embedded bolt is four groups of identical Steel Bolt, is packed in the plate-girder in advance.
During lifting, hanger is packed on the pre-embedded bolt of treating mobile plate-girder with nut, blocks hanger, can easily the plate-girder lifting installed or moved with snap ring.
Wire rope calculates selection according to reality lifting needs.Present embodiment supposition lifting plate-girder weight is 900t, and every beam slab has four suspension ring, and respectively in bearing top position, the end of beam slab, and two suspension ring lines of end are perpendicular to the center line of beam slab, and spacing is 97cm.The wide 129cm of beam slab plate is about 30m.Whole beam slab quality is shared by four suspension ring, and then each suspension ring is born 22.5t approximately, considers score slight eccentricity effect in the reality, bears 24t by each suspension ring in the design; The lockhole spacing of overhead traveling crane is set at 80cm; The safety factor of wire rope sling is got k=8; Then its strength checking is following:
(1) hoist cable Force Calculation
The active force that bears according to each suspension ring of design is 24t, and the active force of two suspension ring then is 48t.The wire rope calculated length is designed to 1.5m.Force diagram is as shown in Figure 2:
G＝480kN
Cosβ＝(97-80)/2×150＝0.05667
B＝arc?cos0.05667＝86.75°
F1＝F2＝G/2·Sinβ°＝240.39kN
(2) selection of steel
Adopt interactive wire rope, the fag end place returns enrolls about 25cm in the rope, then the stressed T=F1=240.39kN of wire rope;
The safety factor of wire rope sling is got k=8;
By T=P/k, P=Tk=240.39 * 8=1923.12kN
Adopt 6 * 37+1, the wire rope of d=60.5mm, nominal tensile strength is 1850MPa, then its rupture pull force
P '=2525.0 * 0.82=2070.5kN＞1923.12kN (safety).
Claims (3)
1. a plate-girder lifts the hoist cable device; It is characterized in that: be made up of hoist cable, snap ring, hanger, pre-embedded bolt, hoist cable one end and overhead traveling crane install, and hoist cable other end bolt is a snap ring; Treating to install pre-embedded bolt on the mobile plate-girder; On pre-embedded bolt, install hanger, said snap ring can lift with hanger, before and after said hoist cable, snap ring, hanger, pre-embedded bolt are side by side and the bilateral symmetry structure.
2. plate-girder lifting hoist cable device according to claim 1, it is characterized in that: said hoist cable is interactive wire rope.
3. plate-girder lifting hoist cable device according to claim 1, it is characterized in that: said snap ring is a large-tonnage D type lockset snap ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204546308U CN202323726U (en) | 2011-11-16 | 2011-11-16 | Lifting and sling device of plate girders |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204546308U CN202323726U (en) | 2011-11-16 | 2011-11-16 | Lifting and sling device of plate girders |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202323726U true CN202323726U (en) | 2012-07-11 |
Family
ID=46435710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204546308U Expired - Fee Related CN202323726U (en) | 2011-11-16 | 2011-11-16 | Lifting and sling device of plate girders |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202323726U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108860335A (en) * | 2018-07-31 | 2018-11-23 | 苏州江南航天机电工业有限公司 | The hoisting structure in van compartment |
| CN110485262A (en) * | 2019-07-29 | 2019-11-22 | 中交四公局第一工程有限公司 | A kind of bridge sling connection structure |
-
2011
- 2011-11-16 CN CN2011204546308U patent/CN202323726U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108860335A (en) * | 2018-07-31 | 2018-11-23 | 苏州江南航天机电工业有限公司 | The hoisting structure in van compartment |
| CN110485262A (en) * | 2019-07-29 | 2019-11-22 | 中交四公局第一工程有限公司 | A kind of bridge sling connection structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHINA RAILWAY CONSTRUCTION BRIDGE ENGINEERING GROU Free format text: FORMER NAME: CHINA RAILWAY 13TH BUREAU GROUP ELECTRICAL SERVICE ENGINEERING CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: Hedong District of Tianjin City, 300011 open 46 new Guanfu 12 storey building Patentee after: CR13G ELECTRIC ENGINEERING CO., LTD. Address before: Hedong District of Tianjin City, 300011 open 46 new Guanfu 12 storey building Patentee before: CR13G Electric Engineering Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20171116 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |