CN205257790U - Fixed high -low leg handle portal crane - Google Patents
Fixed high -low leg handle portal crane Download PDFInfo
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- CN205257790U CN205257790U CN201521120181.8U CN201521120181U CN205257790U CN 205257790 U CN205257790 U CN 205257790U CN 201521120181 U CN201521120181 U CN 201521120181U CN 205257790 U CN205257790 U CN 205257790U
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Abstract
The utility model relates to a hoisting apparatus specifically is a fixed high -low leg handle portal crane, solve that present liang chang position is far away apart from the road bed, on the unavailability road bed fortune roof beam crane span structure establish and within range line arrangement form is set a roof beam in place for the unable problem that adopts present portal crane of continuous high mound to liangchang fortune, including the girder, locate on the girder the rail and along the hoist and mount overhead traveling crane of rail operation, girder one end below set up with the low landing leg of the prefabricated back pre -buried steel board welded of bridge floor, other end below set up with the high landing leg of bridge lower steel pipe pile platform welded, its crowning landing leg adopts the merogenesis to assemble to form through flange joint, high landing leg bottom steel pipe carries out the full weld with pre -buried steel sheet to be connected, two -layer staggered arrangement is divided through the channel -section steel in high landing leg top steel pipe inboard, steel sheet welded connection is passed through at the top, low landing leg is inverted triangular structure. Reduce the span of portal crane, reduced the height of unilateral landing leg, the security that has improved the portal crane structure.
Description
Technical field
The utility model relates to a kind of hoisting apparatus, is specially a kind of fixing height leg bale handle straddle truck.
Background technology
Along with the continuous quickening of national highway construction paces, it is increasingly mature that on employing straddle truck bale handle, bridge carries out Construction Techniques for Erection. Traditional straddle truck installation form is for arranging straddle truck walking track in pier stud both sides, straddle truck carries out bale handle across pier installation and sets up, before straddle truck is installed, must, according to width of roadway, bridge floor design altitude, deck-molding etc. and the deadweight of beam body, select the straddle truck of corresponding span, lifting altitude and elevating capacity to meet construction requirement. Due to each engineering road surface width, bridge floor design altitude and beam body deadweight different sizes, and existing straddle truck limited amount, in straddle truck type selecting process, the straddle truck washability that can meet construction requirement is completely low. Especially far away apart from roadbed for highway Liang Chang position, cannot utilize crane span structure on roadbed fortune beam to establish, and in the in-scope of beam field, circuit arrangement form is continuous high pier, bridge deck width is large, while selecting in the usual way to install across pier straddle truck, lectotype selection difficulty is large, and existing idle straddle truck is without meeting field requirement, meet if newly purchase that the straddle truck cost of this requirement is higher and utilization rate is low.
Summary of the invention
The utility model for solve existing Liang Chang position apart from roadbed compared with far away, cannot utilize crane span structure on roadbed fortune beam to establish and set a roof beam in place circuit arrangement form in scope of Liang Chang fortune is continuous high pier and cannot adopt the problem of existing straddle truck, a kind of new fixing height leg bale handle straddle truck is provided.
The utility model is to adopt following technical scheme to realize: fixing height leg bale handle straddle truck, comprise girder, the lifting overhead traveling crane that is layed in the rail on girder and moves along rail, it is characterized in that below, girder one end arranges the low supporting leg welding with the prefabricated back pre-embedded steel slab of bridge floor, the high supporting leg of steel-pipe pile cushion cap welding under the setting of other end below and bridge, wherein said low supporting leg is inverted triangular truss structure, high supporting leg is to adopt merogenesis assembled and be formed by connecting by ring flange, high leg structure comprises along vertical bridge to direction and top is mutually two groups of columns that acute angle arranges, every group of column is made up of two steel pipes that be arranged in parallel along direction across bridge direction, between adjacent steel pipe, from top to bottom interval is connected with horizontal support bar between two, on, between lower horizontal support bar, connect by oblique drawbar.
Between four root post tops of described high supporting leg, be connected as a single entity by positioning steel tube, positioning steel tube inner side is by dividing two-layer interlaced arrangement to kerve steel, and weld by fixing steel plate at top, and this structural design has further strengthened the structural stability at high supporting leg top.
Under described bridge, steel-pipe pile suspended deck structure comprises the slabstone compacting layer and the concreting cushion cap that arrange from the bottom to top, in slabstone compacting layer and concreting cushion cap, be embedded with some steel-pipe piles, concreting cushion cap is stretched out at steel-pipe pile top, and be connected as a single entity by pre-buried I-steel, between four root post bottoms of high supporting leg and pre-buried I-steel, adopt steel plate to carry out full weld and be connected. This structural design, has ensured that high supporting leg bottom is connected with the firm of steel-pipe pile cushion cap under bridge.
Adopt structural design of the present utility model, take full advantage of the existing resource such as straddle truck and current material, on the basis of original straddle truck, on-the-spot processing, repacking moulding, and the fixing height of installation and debugging leg straddle truck, wherein high supporting leg is arranged under bridge, low supporting leg is arranged on bridge floor, low supporting leg adopts welding manner to carry out fixed connection with the prefabricated back pre-embedded steel slab of bridge floor, under high supporting leg and bridge, steel-pipe pile cushion cap is weldingly connected, span of gantry crane is dwindled greatly, and low height of landing leg reduces greatly, straddle truck stability improves greatly, reduce straddle truck security risk in use, and low supporting leg is inverted triangular truss structure, two groups of columns that high supporting leg is mutually acute angle setting by top form, stability is stronger, the utility model is simple in structure, reasonable in design, easy construction, has not only reduced the span of straddle truck, has reduced the height of one-sided supporting leg, improve the security of straddle truck structure, and reduced lectotype selection difficulty, compared with newly purchasing straddle truck, the saving of separate unit straddle truck is invested more than approximately 800,000 yuan.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the side view of Fig. 1;
Fig. 3 is the partial enlarged drawing in Fig. 2;
Fig. 4 is the side view of Fig. 3;
Fig. 5 is A-A cutaway view in Fig. 3;
In figure: 1-girder; 2-rail; 3-lifts overhead traveling crane; The low supporting leg of 4-; 5-steel pipe; 6-horizontal support bar; 7-oblique drawbar; 8-positioning steel tube; 9-slabstone compacting layer; 10-concreting cushion cap; 11-steel-pipe pile; The pre-buried I-steel of 12-.
Detailed description of the invention
Fixing height leg bale handle straddle truck, as Fig. 1, shown in 2, comprise girder 1, the lifting overhead traveling crane 3 that is layed in the rail 2 on girder and moves along rail, below, girder one end arranges the low supporting leg 4 with the prefabricated back pre-embedded steel slab welding of bridge floor, the high supporting leg of steel-pipe pile cushion cap welding under the setting of other end below and bridge, described low supporting leg is inverted triangular truss structure, high supporting leg is to adopt merogenesis assembled and be formed by connecting by ring flange, high leg structure comprises along vertical bridge to direction and top is mutually two groups of columns that acute angle arranges, every group of column is made up of two steel pipes 5 that be arranged in parallel along direction across bridge direction, between adjacent steel pipe, from top to bottom interval is connected with horizontal support bar 6 between two, on, between lower horizontal support bar, connect by oblique drawbar 7.
Between four root post tops of high supporting leg, be connected as a single entity by positioning steel tube 8, positioning steel tube inner side is by dividing two-layer interlaced arrangement to kerve steel, and weld by fixing steel plate at top.
Under bridge, steel-pipe pile suspended deck structure comprises the slabstone compacting layer 9 and the concreting cushion cap 10 that arrange from the bottom to top, in slabstone compacting layer and concreting cushion cap, be embedded with some steel-pipe piles 11, concreting cushion cap is stretched out at steel-pipe pile top, and be connected as a single entity by pre-buried I-steel 12, between four root post bottoms of high supporting leg and pre-buried I-steel, adopt steel plate to carry out full weld and be connected.
Straddle truck described in the utility model can adopt following steps while installation:
Straddle truck is installed basic step: and 100t truck crane is in place-and merogenesis assembles the low supporting leg of high supporting leg-integral hoisting other annexes installations of the auxiliary reinforcement material welding-straddle truck of high supporting leg-installations girder-high supporting leg install-is installed.
1.100t truck crane is in place
Utilize crane set a roof beam in place place and road, make 100t truck crane accurately in place, be mainly used in high supporting leg merogenesis lifting under bridge, complete supporting leg assembled.
2. under bridge, high supporting leg is installed
1) merogenesis is assembled high supporting leg, utilizes 100t crane that every joint supporting leg is lifted by crane one by one, uses flange to connect as entirety;
2) after assembled the completing of high supporting leg merogenesis, use the integral hoisting of 100t truck crane in place to top, basis, between supporting leg bottom steel pipe and basic pre-buried I-steel, adopting 0.67m × 0.67m × 40mm steel plate to carry out full weld is connected, and use four long 2.5m, outside Φ=and 300mm, δ=6mm steel pipe full weld is to pull-shaped one-tenth framework;
3) high supporting leg top with 4 Φ outer=300mm, δ=6mm steel pipe connecting connects in aggregates, steel pipe inner side adopts 6 16b# channel-section steels to divide two-layer interlaced arrangement, the connection of δ top for=4cm Plate Welding;
4) high supporting leg rear use cable wind rope bilateral in place is fixed.
3. the low supporting leg of bridge floor is installed
Low supporting leg utilizes the one-sided supporting leg of original MG160/10-40M straddle truck top to undergo technological transformation, and uses the lifting of 25t truck crane in place, welds fixed connection with back pre-embedded steel slab, after low supporting leg reinforcement of weld, uses cable wind rope bilateral to fix.
4. straddle truck erection of main beam
Straddle truck girder utilizes original MG160/10-40M straddle truck girder, disconnects from middle bearing pin, selects its half. After the reinforcing in place of the high and low supporting leg of straddle truck, under use bridge, 100t truck crane and bridge floor 25t truck crane complete straddle truck erection of main beam.
5. the auxiliary reinforcement material welding of high supporting leg
High supporting leg is vertically every adopt between two steel pipes along bridge at supporting leg respectively outside Φ=300mm of 8m, and δ=6mm steel pipe is welded to connect, and increases integral rigidity and the stability of the high supporting leg of straddle truck.
6. the last all remainder of straddle truck of installing, comprise overhead traveling crane, hoist engine, and suspender, the accessories such as electric equipment, operating room are installed.
Case history:
It is domestic that the Changjiang river, Tongling public iron bridge roadbed wiring LJ03 mark Liang Chang is positioned at Gao Gou town, Wuwei County, City of Wuhu in Anhui, T Liang Chang is positioned at circuit mileage K23+700 right side, be responsible for K22+871.562～K25+426.562 section totally 882 T beam prefabricated, set up and bridge deck construction, at present beam processed, set a roof beam in place and bridge deck construction task all completes smoothly. For meeting T beam bridge beam fortune Liang Shangqiao, applicant, in the situation that existing straddle truck resource can not meet site operation demand, has adopted straddle truck described in the utility model, has effectively utilized existing resource, and shortened bridge transportation distance, reach Expected Results.
Claims (3)
1. a fixing height leg bale handle straddle truck, comprise girder (1), the lifting overhead traveling crane (3) that is layed in the rail (2) on girder and moves along rail, it is characterized in that below, girder one end arranges the low supporting leg (4) welding with the prefabricated back pre-embedded steel slab of bridge floor, the high supporting leg of steel-pipe pile cushion cap welding under the setting of other end below and bridge, described low supporting leg is inverted triangular truss structure, high supporting leg is to adopt merogenesis assembled and be formed by connecting by ring flange, high leg structure comprises along vertical bridge to direction and top is mutually two groups of columns that acute angle arranges, every group of column is made up of two steel pipes (5) that be arranged in parallel along direction across bridge direction, between adjacent steel pipe, from top to bottom interval is connected with horizontal support bar (6) between two, on, between lower horizontal support bar, connect by oblique drawbar (7).
2. fixing height leg bale handle straddle truck according to claim 1, it is characterized in that being connected as a single entity by positioning steel tube (8) between four root post tops of high supporting leg, positioning steel tube inner side is by dividing two-layer interlaced arrangement to kerve steel, and weld by fixing steel plate at top.
3. fixing height leg bale handle straddle truck according to claim 1 and 2, it is characterized in that under bridge, steel-pipe pile suspended deck structure comprises the slabstone compacting layer (9) and the concreting cushion cap (10) that arrange from the bottom to top, in slabstone compacting layer and concreting cushion cap, be embedded with some steel-pipe piles (11), concreting cushion cap is stretched out at steel-pipe pile top, and be connected as a single entity by pre-buried I-steel (12), between four root post bottoms of high supporting leg and pre-buried I-steel, adopt steel plate to carry out full weld and be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521120181.8U CN205257790U (en) | 2015-12-30 | 2015-12-30 | Fixed high -low leg handle portal crane |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521120181.8U CN205257790U (en) | 2015-12-30 | 2015-12-30 | Fixed high -low leg handle portal crane |
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| CN205257790U true CN205257790U (en) | 2016-05-25 |
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| CN201521120181.8U Active CN205257790U (en) | 2015-12-30 | 2015-12-30 | Fixed high -low leg handle portal crane |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107311047A (en) * | 2017-08-18 | 2017-11-03 | 中冶建工集团有限公司 | The steel box-girder lift structure and method for improving of large span bondbeam |
| CN109024306A (en) * | 2018-07-31 | 2018-12-18 | 中国铁建大桥工程局集团有限公司 | Mountain terrain place Gao Dun rides pier formula door frame bridge lifting construction method |
| CN111776957A (en) * | 2020-06-30 | 2020-10-16 | 中建一局集团建设发展有限公司 | Gantry crane with height-adjustable supporting legs and construction method thereof |
| CN112125160A (en) * | 2020-08-19 | 2020-12-25 | 北京市政路桥股份有限公司 | Vertical beam lifting method for high and large fixed-point portal frame |
-
2015
- 2015-12-30 CN CN201521120181.8U patent/CN205257790U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107311047A (en) * | 2017-08-18 | 2017-11-03 | 中冶建工集团有限公司 | The steel box-girder lift structure and method for improving of large span bondbeam |
| CN109024306A (en) * | 2018-07-31 | 2018-12-18 | 中国铁建大桥工程局集团有限公司 | Mountain terrain place Gao Dun rides pier formula door frame bridge lifting construction method |
| CN111776957A (en) * | 2020-06-30 | 2020-10-16 | 中建一局集团建设发展有限公司 | Gantry crane with height-adjustable supporting legs and construction method thereof |
| CN112125160A (en) * | 2020-08-19 | 2020-12-25 | 北京市政路桥股份有限公司 | Vertical beam lifting method for high and large fixed-point portal frame |
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