CN111056426A - A spreader for simultaneously hoisting multiple frame structure steel beam components and using method thereof - Google Patents
A spreader for simultaneously hoisting multiple frame structure steel beam components and using method thereof Download PDFInfo
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- CN111056426A CN111056426A CN202010053212.1A CN202010053212A CN111056426A CN 111056426 A CN111056426 A CN 111056426A CN 202010053212 A CN202010053212 A CN 202010053212A CN 111056426 A CN111056426 A CN 111056426A
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- lifting
- lower lifting
- hoisting
- lifting lug
- hoist
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/12—Slings comprising chains, wires, ropes, or bands; Nets
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
本发明公开了一种同时吊装多个框架结构钢梁组件的吊具及其使用方法，该吊具包括一个横箱梁和至少两个辅助横梁，横箱梁底部设置多个用于吊装框架结构钢梁组件的吊耳，使用时，先将待架设节段的框架结构钢梁组件按照待安装位置摆放在吊装平台上，用吊绳将框架结构钢梁组件与横箱梁底部的吊耳连接，起吊整节段钢梁的组件，吊装至待安装位置附近后，采用手拉葫芦或导链进行位置微调，对位安装框架结构钢梁组件。本发明提供的吊具受地形限制小，能一次吊装多个框架结构钢梁组件，相对于传统吊具，可以减少吊装次数，能有效地提高高空散件安装法的施工效率，同时大大提高了吊装设备的利用率。
The invention discloses a spreader for simultaneously hoisting a plurality of frame structure steel beam assemblies and a method for using the same. The spreader comprises a transverse box beam and at least two auxiliary transverse beams, and a plurality of hoisting frame structures are arranged at the bottom of the transverse box beam. When using the lifting lugs of the steel beam components, first place the frame structure steel beam components of the segment to be erected on the hoisting platform according to the position to be installed, and use the lifting rope to connect the frame structure steel beam components to the lifting lugs at the bottom of the horizontal box beam. Connect and hoist the components of the entire section of the steel beam, and after hoisting to the vicinity of the location to be installed, use a chain hoist or a guide chain to fine-tune the position, and install the frame structure steel beam components in place. The spreader provided by the invention is less restricted by the terrain, and can hoist multiple frame structure steel beam components at one time. Compared with the traditional spreader, the number of hoisting can be reduced, the construction efficiency of the high-altitude parts installation method can be effectively improved, and the Utilization of lifting equipment.
Description
Technical Field
The invention belongs to the technical field of bridge construction, and particularly relates to a lifting appliance for simultaneously lifting a plurality of frame structure steel beam assemblies and a using method thereof.
Background
When a bridge is built in a mountainous area operation environment, due to the narrow terrain and poor transportation conditions, a method of integrally pre-splicing a large-size frame structure steel beam and then erecting the whole section cannot be adopted, and only a method of installing single parts can be adopted, but the construction efficiency of the method is very low.
Disclosure of Invention
In order to solve the problem of low installation efficiency of single parts, the invention provides the lifting appliance for simultaneously lifting a plurality of frame structure steel beam assemblies and the use method thereof.
The invention provides a lifting appliance for simultaneously lifting a plurality of frame structure steel beam assemblies, which comprises a transverse box beam and at least two auxiliary cross beams; wherein:
the bottom surface of the transverse box girder is provided with a plurality of lower lifting lugs, each lower lifting lug comprises a longitudinal beam lower lifting lug and a secondary transverse beam lower lifting lug, the distance between the two adjacent longitudinal beam lower lifting lugs is equal to the distance between the positions to be installed of the two adjacent longitudinal beams, and the secondary transverse beam lower lifting lug is positioned between the two adjacent longitudinal beam lower lifting lugs; and
the auxiliary cross beam is vertically fixed on the bottom surface of the transverse box girder and is symmetrical about the center point of the transverse box girder, at least two upper lifting lugs are arranged on the top surface of the auxiliary cross beam, the upper lifting lugs on the same auxiliary cross beam are symmetrical about the transverse box girder, and the upper lifting lugs are connected with hoisting equipment through lifting ropes.
On the basis of the technical scheme, the transverse box girder is a cuboid formed by welding an upper plate, a lower plate and two side plates; the upper plate, the lower plate and the two side plates are all made of steel plates with the thickness of 20 mm.
On the basis of the technical scheme, a plurality of vertical first stiffening plates are arranged in the inner cavity of the transverse box girder.
On the basis of the technical scheme, the first stiffening plate is positioned in the inner cavity of the transverse box girder and aligned with the center of the lower lifting lug.
On the basis of the technical scheme, the hoisting equipment is a cable crane.
On the basis of the technical scheme, the lower lifting lug of the longitudinal beam is provided with the lower lifting rope, the two ends of the lower lifting rope are fixed at the two ends of the longitudinal beam, and the middle of the lower lifting rope is hung on the lower lifting lug of the longitudinal beam.
On the basis of the technical scheme, the lower lifting rope is arranged on the lower lifting lug of the secondary cross beam, the lower end of the lower lifting rope is fixed on the secondary cross beam, and the upper end of the lower lifting rope is fixed on the lower lifting lug of the secondary cross beam.
On the basis of the technical scheme, the lower lifting lug and the upper lifting lug both comprise:
the lifting lug main board is vertically arranged;
the second stiffening plate is vertically arranged and attached to the lifting lug main plate, and a through hole for the lifting rope to pass through is formed in the overlapping part of the second stiffening plate and the lifting lug main plate;
and the third stiffening plate is vertically arranged and is perpendicular to the lifting lug main plate and the second stiffening plate.
On the basis of the technical scheme, the auxiliary cross beam is a rectangular box beam so as to ensure that the auxiliary cross beam has enough rigidity.
The invention provides a method for installing a bridge member by utilizing a lifting appliance for simultaneously lifting a plurality of frame structure steel beam assemblies, which comprises the following steps:
two cable buckling towers are arranged at two ends of a bridge respectively, the tops of the cable buckling towers are higher than the bridge floor, a cable is arranged between the two cable buckling towers, and a cable crane is arranged on the cable;
after the main beam is installed on the top of a bridge upright column by using a cable crane, placing the longitudinal beam and the secondary beam of the segment to be installed on hoisting platforms at two ends of the bridge according to the relative position relation of the positions to be installed;
connecting the lifting lugs on the lifting appliance with the lifting hooks of the cable crane by using upper lifting ropes so that the central axis of the transverse box girder and the central axis of the bridge deck are positioned on the same vertical plane;
hoisting the sling to a hoisting platform by using a cable crane, fixing all longitudinal beams on lower lifting lugs of the longitudinal beams by using lower hoisting ropes, and fixing all secondary cross beams on lower lifting lugs of the secondary cross beams;
and hoisting the longitudinal beam and the secondary beam to the position to be installed by using a cable crane, finely adjusting the position by using a chain block or a guide chain, and installing the longitudinal beam and the secondary beam in an aligned mode.
On the basis of the technical scheme, the cable buckling tower is positioned on a central axis of the bridge deck.
On the basis of the technical scheme, the bottom surface of the transverse box girder is parallel to the bridge floor.
In the environment with narrow construction site and poor traffic and transportation environment, a large-size frame structure steel beam cannot be assembled on the ground and then hoisted to a position to be installed, and the traditional hoisting tool can only hoist one assembly at a time, so that the installation efficiency is low.
Compared with the prior art, the invention has the following advantages and beneficial effects:
(1) the lifting appliance provided by the invention is slightly limited by terrain, can lift a plurality of longitudinal beams and secondary cross beams at one time, can reduce the lifting times compared with the traditional lifting appliance, can effectively improve the construction efficiency of a high-altitude component mounting method, and simultaneously greatly improves the utilization rate of lifting equipment.
(2) The invention solves the problem that large-size frame structure steel beams cannot be hoisted in mountainous areas due to narrow terrain and difficult transportation by means of hoisting parts.
Drawings
Fig. 1 is a top view of a spreader provided by the present invention;
fig. 2 is a front view of a spreader provided by the present invention;
fig. 3 is a side view of a spreader provided by the present invention;
figure 4 is a front view of a lifting lug;
figure 5 is a top view of the shackle;
FIG. 6 is a top view of a frame structure steel beam;
FIG. 7 is a side view of a frame structure steel beam;
FIG. 8 is a front view of the spreader lifting frame structure steel beam assembly;
in the figure, 1-transverse box girder, 11-lower lifting lug, 111-longitudinal beam lower lifting lug, 112-secondary beam lower lifting lug, 113-lifting lug main plate, 114-second stiffening plate, 115-third stiffening plate, 12-first stiffening plate, 13-upper plate, 14-lower plate, 15-side plate, 2-auxiliary beam, 21-upper lifting lug, 3-lower lifting rope, 4-longitudinal beam, 5-secondary beam, 6-upper lifting rope, 7-main beam, 8-upright post and 9-lifting platform.
Detailed Description
The technical solution of the present invention is further described in detail with reference to the accompanying drawings and specific embodiments.
In the terms of the invention, the central point of the transverse box girder refers to the intersection point of the diagonals of the cuboid of the transverse box girder, the central axis of the transverse box girder refers to a straight line which passes through the central point of the transverse box girder and is parallel to the bottom surface of the transverse box girder, and the central axis of the bridge deck refers to a symmetrical axis of the bridge deck in the length extension direction of the bridge deck.
As shown in fig. 1 to 8, the lifting tool for simultaneously lifting a plurality of steel beam assemblies of a frame structure provided by the invention comprises a transverse box beam and at least two auxiliary cross beams; wherein:
the bottom surface of the transverse box girder is provided with a plurality of lower lifting lugs, each lower lifting lug comprises a longitudinal beam lower lifting lug and a secondary transverse beam lower lifting lug, the distance between the two adjacent longitudinal beam lower lifting lugs is equal to the distance between the positions to be installed of the two adjacent longitudinal beams, and the secondary transverse beam lower lifting lug is positioned between the two adjacent longitudinal beam lower lifting lugs; the lower lifting lug of the longitudinal beam arranged on the bottom surface of the transverse box girder is used for hoisting the longitudinal beam, the lower lifting lug of the secondary transverse beam is used for hoisting the secondary transverse beam, the distance between the lower lifting lugs of the two adjacent longitudinal beams is equal to the distance between the to-be-installed positions of the two adjacent longitudinal beams, so that the multiple secondary transverse beams can be accurately hoisted to the to-be-installed positions at the same time, the lower lifting lug of the secondary transverse beam is located between the lower lifting lugs of the two adjacent longitudinal beams, and the multiple secondary transverse beams are hoisted to the. The relative position relation of lug is identical under a plurality of that the crossbeam bottom surface set up with the waiting mounted position relation of girder steel subassembly, can realize quick accurate counterpoint of girder steel subassembly.
The auxiliary cross beam is vertically fixed on the bottom surface of the transverse box girder and is symmetrical about the center point of the transverse box girder, at least two upper lifting lugs are arranged on the top surface of the auxiliary cross beam, the upper lifting lugs on the same auxiliary cross beam are symmetrical about the transverse box girder, and the upper lifting lugs are connected with hoisting equipment through lifting ropes. The two auxiliary cross beams fixed on the bottom surfaces of the cross box girders are symmetrical about the center points of the cross box girders, and the upper lifting lugs on the same auxiliary cross beam are symmetrical about the cross box girders, so that the purpose is to keep the balance of the cross box girders in the lifting process. As shown in fig. 1, at least two auxiliary cross beams are welded below the transverse box girder, so that the transverse box girder can be lifted by at least four lifting lugs at the same time, the balance of the transverse box girder is kept on one hand, and the stability and the safety of the lifting process are improved on the other hand.
On the basis of the technical scheme, the transverse box girder is a cuboid formed by welding an upper plate, a lower plate and two side plates; the upper plate, the lower plate and the two side plates are all made of steel plates with the thickness of 20 mm.
On the basis of the technical scheme, a plurality of vertical first stiffening plates are arranged in the inner cavity of the transverse box girder. First stiffener is located the crossbeam case roof beam inner chamber and aligns with lower lug center, and first stiffener all is located under the lug directly over to the crossbeam case roof beam local stability of lug position is located down in the assurance.
As shown in fig. 3, the transverse box girder is a cuboid formed by welding an upper plate, a lower plate and two side plates, and the rigidity of the lifting appliance is ensured by the cuboid transverse box girder; preferably, the transverse box girder is 32m long, and 20mm thick steel plates are used for the upper plate, the lower plate and the two side plates. The inner cavity of the transverse box girder is also provided with a plurality of vertical first stiffening plates, preferably, the first stiffening plates are perpendicular to the two side plates and used for reinforcing the rigidity of the transverse box girder and ensuring local stability.
Preferably, the hoisting device is a cable crane.
On the basis of the technical scheme, the lower lifting rope is arranged on the lower lifting lug of the longitudinal beam, the two ends of the lower lifting rope are fixed at the two ends of the longitudinal beam, and the middle of the lower lifting rope is hung on the lower lifting lug of the longitudinal beam so as to ensure that the longitudinal beam keeps balance in the hoisting process.
On the basis of the technical scheme, the lower lifting rope is arranged on the lower lifting lug of the secondary cross beam, the lower end of the lower lifting rope is fixed on the secondary cross beam, the upper end of the lower lifting rope is fixed on the lower lifting lug of the secondary cross beam, the secondary cross beam adopts single-point lifting, and the direction of the secondary cross beam can be manually adjusted when the lower lifting rope is lifted to a position to be installed.
On the basis of the technical scheme, the lower lifting lug and the upper lifting lug both comprise:
the lifting lug main board is vertically arranged;
the second stiffening plate is vertically arranged and attached to the lifting lug main plate, and a through hole for the lifting rope to pass through is formed in the overlapping part of the second stiffening plate and the lifting lug main plate;
and the third stiffening plate is vertically arranged and is perpendicular to the lifting lug main plate and the second stiffening plate.
The first stiffening plate and the second stiffening plate are arranged on the lifting lug main board and used for strengthening the rigidity of the lifting lug main board, and the local stability of the lifting lug is ensured.
On the basis of the technical scheme, the auxiliary cross beam is a rectangular box beam so as to ensure that the auxiliary cross beam has enough rigidity.
The method is characterized in that a bridge floor crossing over a mountain stream is taken as a reference, two rows of upright columns are arranged on two sides of a first axis in the mountain stream, two cable buckling towers are arranged on the ground at two ends of the bridge floor, the two cable buckling towers are both positioned on the axis of the bridge floor, a cable used for the running of a cable crane is arranged at the tops of the two cable buckling towers, and the cable crane is always positioned right above the axis of the bridge floor when running along the cable.
The invention provides a method for installing a bridge member by utilizing a lifting appliance for simultaneously lifting a plurality of frame structure steel beam assemblies, which comprises the following steps:
two cable buckling towers are respectively arranged at two ends of the bridge, the tops of the cable buckling towers are higher than the bridge floor, a cable is arranged between the two cable buckling towers, and a cable crane is arranged on the cable;
after the main beam is installed on the top of a bridge upright column by using a cable crane, placing the longitudinal beam and the secondary beam of the segment to be installed on hoisting platforms at two ends of the bridge according to the relative position relation of the positions to be installed;
all upper lifting lugs of the lifting appliance are fixed on the cable crane by using upper lifting ropes, so that the central axis of the transverse box girder and the central axis of the bridge deck are positioned on the same vertical plane;
hoisting the sling to a hoisting platform by using a cable crane, fixing all longitudinal beams on lower lifting lugs of the longitudinal beams by using lower hoisting ropes, and fixing all secondary cross beams on lower lifting lugs of the secondary cross beams;
and hoisting the longitudinal beam and the secondary beam to the positions to be installed nearby by using a cable crane (so that the longitudinal beam is positioned between any two main beam spans), finely adjusting the positions by using a chain block or a guide chain, and aligning and installing the longitudinal beam and the secondary beam.
Preferably, the cable fastening tower is positioned on the central axis of the bridge deck to ensure that the cable crane runs right above the central axis of the bridge deck. The central axis of the transverse box girder and the central axis of the bridge deck are located on the same vertical plane, so that the transverse box girder can move right above the central axis of the bridge deck all the time, and the longitudinal beam and the secondary cross beam can quickly reach a position to be installed along a straight line.
Preferably, the bottom surface of the transverse box girder is parallel to the bridge deck, so that the transverse box girder can be kept balanced in the hoisting process.
Various modifications and variations of the embodiments of the present invention may be made by those skilled in the art, which are within the scope of the present invention as defined in the appended claims and their equivalents, and which are not described in detail in the specification which is known to the person skilled in the art.
Claims (10)
1. The utility model provides a hoist of a plurality of frame construction girder steel subassemblies of simultaneous hoisting which characterized in that includes:
the bottom surface of the transverse box girder (1) is provided with a plurality of lower lifting lugs (11), each lower lifting lug (11) comprises a longitudinal beam lower lifting lug (111) and a secondary transverse beam lower lifting lug (112), the distance between every two adjacent longitudinal beam lower lifting lugs (111) is equal to the distance between positions to be installed of every two adjacent longitudinal beams (4), and the secondary transverse beam lower lifting lug (112) is positioned between every two adjacent longitudinal beam lower lifting lugs (111); and
the lifting device comprises at least two auxiliary cross beams (2), wherein the auxiliary cross beams (2) are vertically fixed on the bottom surfaces of the transverse box girders (1) and are symmetrical about the central points of the transverse box girders, at least two upper lifting lugs (21) are arranged on the top surfaces of the auxiliary cross beams (2), the upper lifting lugs (21) on the same auxiliary cross beam (2) are symmetrical about passing through the transverse box girders (1), and the upper lifting lugs (21) are connected with lifting equipment through upper lifting ropes (6).
2. The hoist of a plurality of frame construction girder steel subassemblies of while of claim 1, characterized in that: the transverse box girder (1) is a cuboid formed by welding an upper plate (13), a lower plate (14) and two side plates (15); the upper plate (13), the lower plate (14) and the two side plates (15) are all made of steel plates with the thickness of 20 mm.
3. The hoist of hoist and mount a plurality of frame construction girder steel subassemblies simultaneously of claim 1 or 2 characterized in that: the inner cavity of the transverse box girder (1) is provided with a plurality of vertical first stiffening plates (12), and the stiffening plates (12) are aligned with the lower lifting lugs (111) of the longitudinal girder and the lower lifting lugs (112) of the secondary transverse girder.
4. The hoist of a plurality of frame construction girder steel subassemblies of while of claim 1, characterized in that: the hoisting equipment is a cable crane.
5. The hoist of a plurality of frame construction girder steel subassemblies of while of claim 1, characterized in that: and a lower lifting rope (3) is arranged on the longitudinal beam lower lifting lug (111), two ends of the lower lifting rope (3) are fixed at two ends of the longitudinal beam (4), and the middle of the lower lifting rope is hung on the longitudinal beam lower lifting lug (111).
6. The hoist of a plurality of frame construction girder steel subassemblies of while of claim 1, characterized in that: and a lower lifting rope (3) is arranged on the lower lifting lug (112) of the secondary cross beam, the lower end of the lower lifting rope (3) is fixed on the secondary cross beam (5), and the upper end of the lower lifting rope is fixed on the lower lifting lug (112) of the secondary cross beam.
7. The hoist of a plurality of frame construction girder steel subassemblies of while of claim 1, characterized in that: the lower lifting lug (11) and the upper lifting lug (21) both comprise:
the lifting lug main plate (113), the lifting lug main plate (113) is vertically arranged;
the second stiffening plate (114) is vertically arranged and attached to the lifting lug main plate (113), and a through hole for the lifting rope to pass through is formed in the overlapping part of the second stiffening plate (114) and the lifting lug main plate (113);
and the third stiffening plate (115) is vertically arranged and is perpendicular to the lifting lug main plate (113) and the second stiffening plate (114).
8. A method of spreader construction for simultaneously lifting a plurality of frame construction steel beam assemblies according to any one of claims 1 to 7, wherein:
two cable buckling towers are arranged at two ends of a bridge respectively, the tops of the cable buckling towers are higher than the bridge floor, a cable is arranged between the two cable buckling towers, and a cable crane is arranged on the cable;
after a main beam (7) is installed on the top of a bridge upright post (8) by using a cable crane, a longitudinal beam (4) and a secondary beam (5) of a segment to be installed are placed on hoisting platforms (9) positioned at two ends of a bridge according to the relative position relation of positions to be installed;
connecting an upper lifting lug (21) of the lifting appliance with a lifting hook of a cable crane by using an upper lifting rope (6) so that the central axis of the transverse box girder and the central axis of the bridge deck are positioned on the same vertical plane;
hoisting the sling to a hoisting platform (9) by using a cable crane, fixing all longitudinal beams (4) on longitudinal beam lower lifting lugs (111) by using lower hoisting ropes (3), and fixing all secondary cross beams (5) on secondary cross beam lower lifting lugs (112);
and hoisting the longitudinal beam (4) and the secondary cross beam (5) to the position to be installed by using a cable crane, finely adjusting the position by using a chain block or a guide chain, and installing the longitudinal beam (4) and the secondary cross beam (5) in an aligned mode.
9. The method of claim 8, wherein the method comprises the steps of: the cable buckling tower is positioned on a central axis of the bridge deck.
10. The method of claim 8, wherein the method comprises the steps of: the bottom surface of the transverse box girder (1) is parallel to the bridge deck.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010053212.1A CN111056426A (en) | 2020-01-17 | 2020-01-17 | A spreader for simultaneously hoisting multiple frame structure steel beam components and using method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010053212.1A CN111056426A (en) | 2020-01-17 | 2020-01-17 | A spreader for simultaneously hoisting multiple frame structure steel beam components and using method thereof |
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| CN111056426A true CN111056426A (en) | 2020-04-24 |
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| CN202010053212.1A Pending CN111056426A (en) | 2020-01-17 | 2020-01-17 | A spreader for simultaneously hoisting multiple frame structure steel beam components and using method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112726417A (en) * | 2021-01-12 | 2021-04-30 | 湖南中路华程桥梁科技股份有限公司 | Installation and anchoring process for UHPC precast slab of suspension bridge deck |
| CN112983543A (en) * | 2021-03-02 | 2021-06-18 | 中铁隧道集团二处有限公司 | Hanging bracket for tramcar storage battery in shield and using method thereof |
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| CN112983543A (en) * | 2021-03-02 | 2021-06-18 | 中铁隧道集团二处有限公司 | Hanging bracket for tramcar storage battery in shield and using method thereof |
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Application publication date: 20200424 |