CN101324055A - Lifting equipment and method of box girder integral steel reinforcement framework - Google Patents

Lifting equipment and method of box girder integral steel reinforcement framework Download PDF

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Publication number
CN101324055A
CN101324055A CNA2008101348971A CN200810134897A CN101324055A CN 101324055 A CN101324055 A CN 101324055A CN A2008101348971 A CNA2008101348971 A CN A2008101348971A CN 200810134897 A CN200810134897 A CN 200810134897A CN 101324055 A CN101324055 A CN 101324055A
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China
Prior art keywords
girder
reinforcement
box
leg
cage
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CNA2008101348971A
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Chinese (zh)
Inventor
杨齐海
秦顺全
高兴泽
王喜良
杨文涛
朱斌
刘宏刚
陈勇华
杨先权
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China Railway Major Bridge Engineering Co Ltd
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China Railway Major Bridge Engineering Co Ltd
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Priority to CNA2008101348971A priority Critical patent/CN101324055A/en
Publication of CN101324055A publication Critical patent/CN101324055A/en
Pending legal-status Critical Current

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Abstract

The invention provides a hoisting device and a hoisting method used for a box girder whole rebar frame, relating to the upper structure construction equipment of bridges. The hoisting device comprises a main beam a and a main beam b which are parallel and truss-structural; one end of the main beam a and one end of the main beam b are respectively connected with a front leg; the other ends of the main beam a and the main beam b are respectively connected with a rear leg; the middle parts of the main beam a and the main beam b are connected with at least a middle leg; the main beam a and the main beam b are respectively provided with at least two electric blocks which can move forwards and backwards along the main beam; the bottom of the rear leg is provided with a rear leg wheel box provided with a driving wheel; the bottom of the middle leg is provided with a middle leg wheel box provided with the driving wheel; the length of the front leg is more than that of the middle leg and the rear leg. The hoisting method of the invention replaces the sequential operation with parallel operation, and the box girder whole rebar frame can be hoisted in place on a girder surface with at least one cell cast in advance, then the box girder concrete is cast in-situ on the pier, thus being especially suitable for use matched with movable frames and effectively improving the bridge construction speed.

Description

A kind of hanging device of box girder integral cage of reinforcement and hanging method
Technical field
The present invention relates to the bridge superstructure construction equipment, a kind of specifically hanging device of box girder integral cage of reinforcement and hanging method.
Background technology
The concrete box girder reinforcement construction is continued to use the method for loosing and pricking always in template, promptly in advance various reinforcing bar blanking is bent moulding, at the bottom of utilizing template to do the loose tool colligation then, web reinforcement and prestressed duct, internal mold is installed afterwards and is adjusted each size, again in internal mold end face colligation top board bridge floor reinforcing bar, after reinforcing bar binding is finished, the beginning concreting.This method owing to can only take sequence construction, can not carry out parallel operations, so the engineering time is long, work efficiency is low, and to guaranteeing that beam physique amount has increased difficulty.
For shortening the production cycle of concrete box girder, improve the quality of products, the insider has proposed beam body cage of reinforcement segmentation colligation, integral lifting is mounted to the constructure scheme in the template, this scheme is put to implement in the precasting yard of concrete box girder at present, method is: as shown in Figure 1, beam body cage of reinforcement is divided into the two large divisions: the whole skeleton 1 of case back slab muscle separate type, at the bottom of the case beam, the whole skeleton 2 of web reinforcement separate type, with the colligation moulding respectively on the reinforcing bar binding loose tool of two parts cage of reinforcement, lift to the case beam with two gantry cranes or automobile crane afterwards and produce in the template of pedestal, get final product concreting after the connection.Fig. 2 has provided the cage of reinforcement scheme of installation, and wherein 3 is box girder inner formwork, and 4 is case beam external mold.This scheme is utilized parallel operations, and colligation set-up time of cage of reinforcement in the concrete box girder production process was foreshortened within one day by a couple of days, has improved case beam production efficiency greatly.But, when bridge box and beam on pier shaft during cast-in-situ, this scheme is difficult to implementing, reason is: bridge pier shaft height is bigger, the volume of cage of reinforcement is also bigger, the ability of existing crane gear is difficult to satisfy the requirement that cage of reinforcement is installed; The residing landform of bridge, landforms or bearing capacity of foundation soil often are difficult to satisfy the requirement of crane work.
Summary of the invention
At existing in prior technology difficulty or not enough, the object of the present invention is to provide a kind of hanging device and hanging method of box girder integral cage of reinforcement, sequential analysis is become parallel operations, can be with box girder integral cage of reinforcement hoisted in position on the beam face that has watered at least 1 hole in advance, cast-in-situ case beam concrete on pier shaft, be particularly suitable for being used, can effectively improve bridge construction speed with mobile formwork.
For reaching above purpose, the technical scheme that the present invention takes is:
A kind of hanging device of box girder integral cage of reinforcement, it is characterized in that: said hanging device comprise two parallel, the girder a10 of trussed construction and girder b11, the end of girder a10 and girder b11 all is connected with a front leg strut 5, the other end of girder a10 and girder b11 all is connected with a rear support leg 7, the middle part of girder a10 and girder b11 is connected with a middle supporting leg 6 at least, be respectively equipped with at least two electric blocks 12 that can move forward and backward along girder on girder a10 and the girder b11, the bottom of rear support leg 7 is provided with the rear support leg roller box 8 of band driving wheel 19, the bottom of middle supporting leg 6 is provided with the middle supporting leg roller box 9 of band driving wheel 19, and the length of front leg strut 5 is greater than middle supporting leg 6 and rear support leg 7.
On the basis of technique scheme, the middle part of girder a10 and girder b11 is provided with two middle supporting legs 6.
On the basis of technique scheme, be provided with at least two transverse reinforced bars 25 and at least eight oblique bracing pieces 26 between two middle supporting legs 6.
On the basis of technique scheme, the cross section of said girder a10 and girder b11 is del, the upper end is provided with two upper chords 24, and the lower end is provided with one not only as lower chord but also as the i iron 15 of the cross moving track of electric block 12, electric block 12 is hung at the i iron lower edge; Front leg strut 5 comprises two foreleg columns 27, the top of two foreleg columns 27 is connected with the lower chord of girder a10, the lower chord of girder b11 respectively, the middle part of two foreleg columns 27 is provided with down transverse beam 13, the bottom of two foreleg columns 27 is equipped with and connects bearing pin 16, connect bearing pin 16 and be connected, and be provided with transverse beam 14 between girder a10, the girder b11 of front leg strut 5 connections with the retracting cylinder 18 that drives by hydraulic jack 17; Middle supporting leg 6 and rear support leg 7 include two symmetrically arranged curved supporting leg columns 22, two curved supporting leg columns 22 are separately fixed at transverse splicing distribution beam 21 two ends, transverse splicing distribution beam 21 is connected with the upper chord 24 of girder a10, girder b11, and middle supporting leg 6 connects or and the lower chord of rear support leg 7 the girder a10, the girder b11 that connect between be provided with connecting rod 20,21 of lower chord and transverse splicing distribution beam are provided with stiffening girder 23, and transverse splicing distribution beam 21 and 22 on curved supporting leg column are provided with stiffening girder 23.
A kind of hanging method of box girder integral cage of reinforcement is characterized in that: its concrete steps are:
Step 1, watering steel rail laying on the concrete box girder beam face at least 1 hole in advance, the hanging device 61 of box girder integral cage of reinforcement is being installed on the track;
Step 2, make reinforcing bar binding loose tool car 64, then at the bottom of on the reinforcing bar binding loose tool car 64 reinforcing bar binding of blanking moulding in advance being become the case beam, the whole skeleton 2 of web reinforcement separate type;
Step 3, the case beam will be housed at the bottom of, the reinforcing bar binding loose tool car of the whole skeleton 2 of web reinforcement separate type 64 moves the intraperitoneal in the hanging device 61 that enters the box girder integral cage of reinforcement, between rear support leg along rail;
Step 4, electric block 12 transferred move on to the position, cage of reinforcement is lifted by crane on the hook that shoulder pole 62 is hung on electric block, in cage of reinforcement lifting shoulder pole 62 lower ends some little hooks are set, at the bottom of hooking the case beam with little hook, the reinforcing bar of the whole skeleton 2 of web reinforcement separate type, by electric block rise hook with the case beam at the bottom of, the whole skeleton 2 of web reinforcement separate type hangs reinforcing bar binding loose tool car 64;
Step 5, electric block 12 with the case beam of slinging at the bottom of, the whole skeleton 2 of web reinforcement separate type moves in the case beam external mold 4;
Step 6, box girder inner formwork 3 is in place, reinforcing bar binding loose tool car 64 is shifted out the box girder integral cage of reinforcement hanging device 61 in, the abdominal cavity between rear support leg;
Step 7, the reinforcing bar binding with blanking moulding in advance on reinforcing bar binding loose tool car 64 become the whole skeleton 1 of case back slab muscle separate type;
Step 8, the reinforcing bar binding loose tool car 64 that the whole skeleton 1 of case back slab muscle separate type will be housed move the intraperitoneal in the hanging device 61 that enters the box girder integral cage of reinforcement, between rear support leg along rail;
Step 9, electric block 12 transferred move on to the position, cage of reinforcement is lifted by crane on the hook that shoulder pole 62 is hung on electric block, in cage of reinforcement lifting shoulder pole 62 lower ends some little hooks are set, hook the reinforcing bar of the whole skeleton 1 of case back slab muscle separate type with little hook, play hook by electric block the whole skeleton 1 of case back slab muscle separate type is hung reinforcing bar binding loose tool car 64;
Step 10, electric block 12 move in the box girder inner formwork 3 with the whole skeleton 1 of the case back slab muscle separate type of slinging, and promptly finish the cage of reinforcement integral hoisting of 1 hole cast-in-situ box girder.
On the basis of technique scheme, the hanging device 61 of said box girder integral cage of reinforcement comprise two parallel, the girder a10 of trussed construction and girder b11, the end of girder a10 and girder b11 all is connected with a front leg strut 5, the other end of girder a10 and girder b11 all is connected with a rear support leg 7, the middle part of girder a10 and girder b11 is connected with a middle supporting leg 6 at least, be respectively equipped with at least two electric blocks 12 that can move forward and backward along girder on girder a10 and the girder b11, the bottom of rear support leg 7 is provided with the rear support leg roller box 8 of band driving wheel 19, the bottom of middle supporting leg 6 is provided with the middle supporting leg roller box 9 of band driving wheel 19, the length of front leg strut 5 is greater than middle supporting leg 6 and rear support leg 7, and said driving wheel 19 and rail are adaptive.
On the basis of technique scheme, the middle part of girder a10 and girder b11 is provided with two middle supporting legs 6.
On the basis of technique scheme, be provided with at least two transverse reinforced bars 25 and at least eight oblique bracing pieces 26 between two middle supporting legs 6.
On the basis of technique scheme, the cross section of said girder a10 and girder b11 is del, the upper end is provided with two upper chords 24, and the lower end is provided with one not only as lower chord but also as the i iron 15 of the cross moving track of electric block 12, electric block 12 is hung at the i iron lower edge; Front leg strut 5 comprises two foreleg columns 27, the top of two foreleg columns 27 is connected with the lower chord of girder a10, the lower chord of girder b11 respectively, the middle part of two foreleg columns 27 is provided with down transverse beam 13, the bottom of two foreleg columns 27 is equipped with and connects bearing pin 16, connect bearing pin 16 and be connected, and be provided with transverse beam 14 between girder a10, the girder b11 of front leg strut 5 connections with the retracting cylinder 18 that drives by hydraulic jack 17; Middle supporting leg 6 and rear support leg 7 include two symmetrically arranged curved supporting leg columns 22, two curved supporting leg columns 22 are separately fixed at transverse splicing distribution beam 21 two ends, transverse splicing distribution beam 21 is connected with the upper chord 24 of girder a10, girder b11, and middle supporting leg 6 connects or and the lower chord of rear support leg 7 the girder a10, the girder b11 that connect between be provided with connecting rod 20,21 of lower chord and transverse splicing distribution beam are provided with stiffening girder 23, and transverse splicing distribution beam 21 and 22 on curved supporting leg column are provided with stiffening girder 23.
The hanging device of box girder integral cage of reinforcement of the present invention becomes parallel operations with sequential analysis, can be with box girder integral cage of reinforcement hoisted in position on the beam face that has watered at least 1 hole in advance, cast-in-situ case beam concrete on pier shaft, be particularly suitable for being used, can effectively improve bridge construction speed with mobile formwork.
Description of drawings
The present invention has following accompanying drawing:
The cage of reinforcement of Fig. 1 case beam is divided schematic diagram
The cage of reinforcement scheme of installation of Fig. 2 case beam
The hoisting equipment structure schematic diagram of Fig. 3 box girder integral cage of reinforcement
Fig. 4 front leg strut schematic diagram
Supporting leg, rear support leg schematic diagram among Fig. 5
Fig. 6 main beam structure schematic diagram
Fig. 7 hanging device cooperates the Construction Through Form on Traveler schematic diagram
Reference numeral:
1 is the whole skeleton of case back slab muscle separate type, 2 be the case beam at the bottom of, the whole skeleton of web reinforcement separate type, 3 is box girder inner formwork, 4 is case beam external mold, and 5 is front leg strut, and 6 is middle supporting leg, 7 is rear support leg, and 8 is the rear support leg roller box, and 9 is middle supporting leg roller box, 10 is girder a, and 11 is girder b, and 12 is electric block, 13 is transverse beam down, and 14 is last transverse beam, and 15 is i iron, 16 for connecting bearing pin, and 17 is hydraulic jack, and 18 is retracting cylinder, 19 is driving wheel, and 20 is connecting rod, and 21 is the transverse splicing distribution beam, 22 are curved supporting leg column, and 23 is bracing piece, and 24 is upper chord, 25 is transverse reinforced bar, 26 is oblique bracing piece, and 27 is the foreleg column, and 61 is the hanging device of box girder integral cage of reinforcement, 62 are cage of reinforcement lifting shoulder pole, 63 is steel bar framework of box beam, and 64 is reinforcing bar binding loose tool car, and 65 is mobile formwork.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is described in further detail.
Fig. 3 is the hoisting equipment structure schematic diagram of box girder integral cage of reinforcement of the present invention, said hanging device comprise two parallel, the girder a10 of trussed construction and girder b11, the end of girder a10 and girder b11 all is connected with a front leg strut 5, the other end of girder a10 and girder b11 all is connected with a rear support leg 7, the middle part of girder a10 and girder b11 is connected with a middle supporting leg 6 at least, be respectively equipped with at least two electric blocks 12 that can move forward and backward along girder on girder a10 and the girder b11, the bottom of rear support leg 7 is provided with the rear support leg roller box 8 of band driving wheel 19, the bottom of middle supporting leg 6 is provided with the middle supporting leg roller box 9 of band driving wheel 19, and the length of front leg strut 5 is greater than middle supporting leg 6 and rear support leg 7.The length of front leg strut 5 is to be weight-bearing surface because front leg strut is a end face with bridge pier greater than middle supporting leg 6 and rear support leg 7, and middle supporting leg and rear support leg are that the guide rail that lays on the end face with Kong Liang is a weight-bearing surface, because there are difference in height in the guide rail that lays on the end face of Kong Liang and the end face of bridge pier, so the length of front leg strut 5 is greater than middle supporting leg 6 and rear support leg 7.Said electric block should be provided with in pairs, and concrete group number is determined by the elevating capacity of weight, length and the electric block of cage of reinforcement, but 2 groups (promptly 4) should be arranged at least.The spacing of said two girders should be suitable with case web cage of reinforcement spacing, whole factor of safety against overturning K 〉=1.5 of hanging device during cantilever running, preceding span length's degree should be greater than the length of 1 hole beam, back span length's degree is decided on active length and stability requirement, if the whole stability against overturning deficiency of hanging device can be in the suitable counterweight of main beam rear end.Supporting leg 6 and rear support leg 7 configuration supporting leg roller boxs are the needs of walking for certainly in said, the electronic supporting leg roller box of preferred disposition.
On the basis of technique scheme, the middle part of girder a10 and girder b11 is provided with two middle supporting legs 6.
On the basis of technique scheme, be provided with at least two transverse reinforced bars 25 and at least eight oblique bracing pieces 26 between two middle supporting legs 6.Its objective is strengthen hanging device vertical bridge to stability, guarantee hanging device in lifting, the vertical bridge of electric block lift heavy to moving and enough stable during the hanging device traveling.
On the basis of technique scheme, Fig. 4 is the front leg strut schematic diagram, Fig. 5 is middle supporting leg, rear support leg schematic diagram, Fig. 6 is the main beam structure schematic diagram, the cross section of said girder a10 and girder b11 is del, the upper end is provided with two upper chords 24, and the lower end is provided with one not only as lower chord but also as the i iron 15 of the cross moving track of electric block 12, electric block 12 is hung at the i iron lower edge; Front leg strut 5 comprises two foreleg columns 27, the top of two foreleg columns 27 is connected with the lower chord of girder a10, the lower chord of girder b11 respectively, the middle part of two foreleg columns 27 is provided with down transverse beam 13, the bottom of two foreleg columns 27 is equipped with and connects bearing pin 16, connect bearing pin 16 and be connected, and be provided with transverse beam 14 between girder a10, the girder b11 of front leg strut 5 connections with the retracting cylinder 18 that drives by hydraulic jack 17; Middle supporting leg 6 and rear support leg 7 include two symmetrically arranged curved supporting leg columns 22, two curved supporting leg columns 22 are separately fixed at transverse splicing distribution beam 21 two ends, transverse splicing distribution beam 21 is connected with the upper chord 24 of girder a10, girder b11, and middle supporting leg 6 connects or and the lower chord of rear support leg 7 the girder a10, the girder b11 that connect between be provided with connecting rod 20,21 of lower chord and transverse splicing distribution beam are provided with stiffening girder 23, and transverse splicing distribution beam 21 and 22 on curved supporting leg column are provided with stiffening girder 23.Fig. 6 is the main beam structure schematic diagram, and as shown in Figure 6, the cross section of girder a10 and girder b11 is a del, two upper chords, single lower chord, lower chord are i iron, i iron also is the cross moving track of electric block simultaneously, and electric block is hung at the i iron lower edge, moves forward and backward along i iron.I iron is the walking track of electric block, can be used as the stressed member of girder truss again, has increased the rigidity of girder, has reduced the weight of girder.Said girder is main load-bearing and force transferring structure, totally two, is arranged in parallel the parallel chords triangular truss of preferred triangular cross-section as shown in Figure 6.As shown in Figure 3, front leg strut can come to nothing during cantilever running forward at gantry crane, on the square pier top, therefore makes the extension type structure and helps on-the-spot the use before will being bearing in after traveling puts in place.Said curved supporting leg column 22 be consider the box girder bridge face reinforcing bar almost with bridge floor with wide, therefore pass through in order to the bridge floor cage of reinforcement supporting leg column design embayment is curved.The lateral stiffness of supporting leg 6 and rear support leg 7 during bracing piece 23 can increase.
The present invention also provides a kind of hanging method of box girder integral cage of reinforcement, and its concrete steps are:
Step 1, watering steel rail laying on the concrete box girder beam face at least 1 hole in advance, the hanging device 61 of box girder integral cage of reinforcement is being installed on the track;
Step 2, make reinforcing bar binding loose tool car 64, then at the bottom of on the reinforcing bar binding loose tool car 64 reinforcing bar binding of blanking moulding in advance being become the case beam, the whole skeleton 2 of web reinforcement separate type;
Step 3, the case beam will be housed at the bottom of, the reinforcing bar binding loose tool car of the whole skeleton 2 of web reinforcement separate type 64 moves the intraperitoneal in the hanging device 61 that enters the box girder integral cage of reinforcement, between rear support leg along rail;
Step 4, electric block 12 transferred move on to the position, cage of reinforcement is lifted by crane on the hook that shoulder pole 62 is hung on electric block, in cage of reinforcement lifting shoulder pole 62 lower ends some little hooks are set, at the bottom of hooking the case beam with little hook, the reinforcing bar of the whole skeleton 2 of web reinforcement separate type, by electric block rise hook with the case beam at the bottom of, the whole skeleton 2 of web reinforcement separate type hangs reinforcing bar binding loose tool car 64;
Step 5, electric block 12 with the case beam of slinging at the bottom of, the whole skeleton 2 of web reinforcement separate type moves in the case beam external mold 4;
Step 6, box girder inner formwork 3 is in place, reinforcing bar binding loose tool car 64 is shifted out the box girder integral cage of reinforcement hanging device 61 in, the abdominal cavity between rear support leg;
Step 7, the reinforcing bar binding with blanking moulding in advance on reinforcing bar binding loose tool car 64 become the whole skeleton 1 of case back slab muscle separate type;
Step 8, the reinforcing bar binding loose tool car 64 that the whole skeleton 1 of case back slab muscle separate type will be housed move the intraperitoneal in the hanging device 61 that enters the box girder integral cage of reinforcement, between rear support leg along rail;
Step 9, electric block 12 transferred move on to the position, cage of reinforcement is lifted by crane on the hook that shoulder pole 62 is hung on electric block, in cage of reinforcement lifting shoulder pole 62 lower ends some little hooks are set, hook the reinforcing bar of the whole skeleton 1 of case back slab muscle separate type with little hook, play hook by electric block the whole skeleton 1 of case back slab muscle separate type is hung reinforcing bar binding loose tool car 64;
Step 10, electric block 12 move in the box girder inner formwork 3 with the whole skeleton 1 of the case back slab muscle separate type of slinging, and promptly finish the cage of reinforcement integral hoisting of 1 hole cast-in-situ box girder.
On the basis of technique scheme, the hanging device 61 of said box girder integral cage of reinforcement comprise two parallel, the girder a10 of trussed construction and girder b11, the end of girder a10 and girder b11 all is connected with a front leg strut 5, the other end of girder a10 and girder b11 all is connected with a rear support leg 7, the middle part of girder a10 and girder b11 is connected with a middle supporting leg 6 at least, be respectively equipped with at least two electric blocks 12 that can move forward and backward along girder on girder a10 and the girder b11, the bottom of rear support leg 7 is provided with the rear support leg roller box 8 of band driving wheel 19, the bottom of middle supporting leg 6 is provided with the middle supporting leg roller box 9 of band driving wheel 19, the length of front leg strut 5 is greater than middle supporting leg 6 and rear support leg 7, and said driving wheel 19 and rail are adaptive.
On the basis of technique scheme, the middle part of girder a10 and girder b11 is provided with two middle supporting legs 6.
On the basis of technique scheme, be provided with at least two transverse reinforced bars 25 and at least eight oblique bracing pieces 26 between two middle supporting legs 6.
On the basis of technique scheme, the cross section of said girder a10 and girder b11 is del, the upper end is provided with two upper chords 24, and the lower end is provided with one not only as lower chord but also as the i iron 15 of the cross moving track of electric block 12, electric block 12 is hung at the i iron lower edge; Front leg strut 5 comprises two foreleg columns 27, the top of two foreleg columns 27 is connected with the lower chord of girder a10, the lower chord of girder b11 respectively, the middle part of two foreleg columns 27 is provided with down transverse beam 13, the bottom of two foreleg columns 27 is equipped with and connects bearing pin 16, connect bearing pin 16 and be connected, and be provided with transverse beam 14 between girder a10, the girder b11 of front leg strut 5 connections with the retracting cylinder 18 that drives by hydraulic jack 17; Middle supporting leg 6 and rear support leg 7 include two symmetrically arranged curved supporting leg columns 22, two curved supporting leg columns 22 are separately fixed at transverse splicing distribution beam 21 two ends, transverse splicing distribution beam 21 is connected with the upper chord 24 of girder a10, girder b11, and middle supporting leg 6 connects or and the lower chord of rear support leg 7 the girder a10, the girder b11 that connect between be provided with connecting rod 20,21 of lower chord and transverse splicing distribution beam are provided with stiffening girder 23, and transverse splicing distribution beam 21 and 22 on curved supporting leg column are provided with stiffening girder 23.
Below in conjunction with Fig. 7, further explain the hanging method of above-mentioned box girder integral cage of reinforcement, wherein 61 is the hanging device of box girder integral cage of reinforcement, 62 are cage of reinforcement lifting shoulder pole, 63 is steel bar framework of box beam, 64 is reinforcing bar binding loose tool car, 65 is mobile formwork, said steel bar framework of box beam 63 comprises the end, whole skeleton 2 of web reinforcement separate type and the whole skeleton 1 of top board reinforcing bar separate type, said mobile formwork 65 comprises box girder inner formwork 3, case beam external mold 4, its concrete lifting step is: in advance the hanging device 61 of box girder integral cage of reinforcement is made, (being at least 1 hole) steel rail laying on the concrete box girder beam face that has watered in advance, the hanging device 61 of box girder integral cage of reinforcement is installed on the track, said driving wheel 19 and rail are adaptive, make reinforcing bar binding loose tool car 64 shown in Figure 7, on reinforcing bar binding loose tool car 64, the reinforcing bar binding of blanking moulding is in advance become the end then, whole skeleton 2 of web reinforcement separate type and the whole skeleton 1 of top board reinforcing bar separate type, the reinforcing bar binding loose tool car 64 that above-mentioned cage of reinforcement is housed can vertically move on the concrete beam face that has watered, in the hanging device 61 that enters the box girder integral cage of reinforcement, intraperitoneal between rear support leg is hanging device 61 feedings of box girder integral cage of reinforcement.Set cage of reinforcement lifting shoulder pole 62 shown in Figure 7, the electric block accent is moved on to assigned address, cage of reinforcement is lifted by crane on the hook that shoulder pole 62 is hung on electric block, in cage of reinforcement lifting shoulder pole 62 lower ends many little hooks are set, hook the reinforcing bar of the whole skeleton 2 in the end, web reinforcement separate type with little hook, play hook by electric block the end, the whole skeleton 2 of web reinforcement separate type are hung reinforcing bar binding loose tool car 64; Then, electric block moves in the movable case beam external mold 4 with the end of slinging, the whole skeleton 2 of web reinforcement separate type, after treating that box girder inner formwork 3 is in place, it is in place to lift by crane the whole skeleton 1 of the good top board reinforcing bar separate type of prior colligation with the identical way of hanging device 61 employings of box girder integral cage of reinforcement again, thereby finishes the cage of reinforcement integral hoisting of 1 hole cast-in-situ box girder.Hanging device of the present invention has solved an integral installation beam body cage of reinforcement difficult technologies difficult problem under bridge box and beam cast-in-situ execution conditions well, utilize the box girder bridge face of having built to do the place of reinforcing bar blanking moulding, colligation beam body cage of reinforcement and being transported under this hanging device on mobile loose tool car is seated in the beam casement plate to be poured cage of reinforcement is disposable with the hanging device integral lifting.The present invention can shorten the case beam production cycle, be particularly useful for the upside suspension type moving die carrier cast-in-situ box girder, mobile formwork cast-in-situ box girder and Liang Chang system beam is mentioned in the same breath at aspects such as construction speed, quality assurances, brought new vitality for further applying of mobile formwork; Simultaneously, cage of reinforcement is produced on the bridge floor and carries out, and execution conditions are superior, the space is broad, to increasing work efficiency and guaranteeing that construction quality is of great advantage.

Claims (9)

1. the hanging device of a box girder integral cage of reinforcement, it is characterized in that: said hanging device comprise two parallel, the girder a (10) of trussed construction and girder b (11), the end of girder a (10) and girder b (11) all is connected with a front leg strut (5), the other end of girder a (10) and girder b (11) all is connected with a rear support leg (7), the middle part of girder a (10) and girder b (11) is connected with a middle supporting leg (6) at least, be respectively equipped with at least two electric blocks (12) that can move forward and backward along girder on girder a (10) and the girder b (11), the bottom of rear support leg (7) is provided with the rear support leg roller box (8) of band driving wheel (19), the bottom of middle supporting leg (6) is provided with the middle supporting leg roller box (9) of band driving wheel (19), and the length of front leg strut (5) is greater than middle supporting leg (6) and rear support leg (7).
2. the hanging device of box girder integral cage of reinforcement as claimed in claim 1 is characterized in that: the middle part of girder a (10) and girder b (11) is provided with two middle supporting legs (6).
3. the hanging device of box girder integral cage of reinforcement as claimed in claim 2 is characterized in that: be provided with at least two transverse reinforced bars (25) and at least eight oblique bracing pieces (26) between two middle supporting legs (6).
4. as the hanging device of claim 1 or 2 or 3 described box girder integral cage of reinforcement, it is characterized in that: the cross section of said girder a (10) and girder b (11) is del, the upper end is provided with two upper chords (24), the lower end is provided with one not only as lower chord but also as the i iron (15) of the cross moving track of electric block (12), electric block (12) is hung at the i iron lower edge; Front leg strut (5) comprises two foreleg columns (27), the top of two foreleg columns (27) is connected with the lower chord of girder a (10), the lower chord of girder b (11) respectively, the middle part of two foreleg columns (27) is provided with down transverse beam (13), the bottom of two foreleg columns (27) is equipped with and connects bearing pin (16), connect bearing pin (16) and be connected, and be provided with transverse beam (14) between girder a (10), the girder b (11) of front leg strut (5) connection with the retracting cylinder (18) that drives by hydraulic jack (17); Middle supporting leg (6) and rear support leg (7) include two symmetrically arranged curved supporting leg columns (22), two curved supporting leg columns (22) are separately fixed at transverse splicing distribution beam (21) two ends, transverse splicing distribution beam (21) and girder a (10), the upper chord (24) of girder b (11) connects, the girder a (10) that is connected or is connected with middle supporting leg (6) with rear support leg (7), be provided with connecting rod (20) between the lower chord of girder b (11), be provided with stiffening girder (23) between lower chord and transverse splicing distribution beam (21), be provided with stiffening girder (23) between transverse splicing distribution beam (21) and curved supporting leg column (22).
5. the hanging method of a box girder integral cage of reinforcement, it is characterized in that: its concrete steps are:
Step 1, watering steel rail laying on the concrete box girder beam face at least 1 hole in advance, the hanging device (61) of box girder integral cage of reinforcement is being installed on the track;
Step 2, make reinforcing bar binding loose tool car (64), then reinforcing bar binding loose tool car (64) go up will blanking moulding in advance reinforcing bar binding become the case beam at the bottom of, web reinforcement separate type integral body skeleton (2);
Step 3, the case beam will be housed at the bottom of, the reinforcing bar binding loose tool car (64) of the whole skeleton of web reinforcement separate type (2) moves the intraperitoneal in the hanging device that enters the box girder integral cage of reinforcement (61), between rear support leg along rail;
Step 4, electric block (12) transferred move on to the position, cage of reinforcement is lifted by crane shoulder pole (62) to be hung on the hook of electric block, in cage of reinforcement lifting shoulder pole (62) lower end some little hooks are set, at the bottom of hooking the case beam with little hook, the reinforcing bar of the whole skeleton of web reinforcement separate type (2), by electric block rise hook with the case beam at the bottom of, the whole skeleton of web reinforcement separate type (2) hangs reinforcing bar binding loose tool car (64);
Step 5, electric block (12) with the case beam of slinging at the bottom of, the whole skeleton of web reinforcement separate type (2) moves in the case beam external mold (4);
Step 6, box girder inner formwork (3) is in place, reinforcing bar binding loose tool car (64) is shifted out the box girder integral cage of reinforcement hanging device (61) in, the abdominal cavity between rear support leg;
Step 7, the reinforcing bar binding of going up blanking moulding in advance at reinforcing bar binding loose tool car (64) become the whole skeleton (1) of case back slab muscle separate type;
Step 8, the reinforcing bar binding loose tool car (64) that the whole skeleton of case back slab muscle separate type (1) will be housed move the intraperitoneal in the hanging device that enters the box girder integral cage of reinforcement (61), between rear support leg along rail;
Step 9, electric block (12) transferred move on to the position, cage of reinforcement is lifted by crane shoulder pole (62) to be hung on the hook of electric block, in cage of reinforcement lifting shoulder pole (62) lower end some little hooks are set, hook the reinforcing bar of the whole skeleton of case back slab muscle separate type (1) with little hook, play hook by electric block the whole skeleton of case back slab muscle separate type (1) is hung reinforcing bar binding loose tool car (64);
Step 10, electric block (12) move in the box girder inner formwork (3) with the whole skeleton of the case back slab muscle separate type of slinging (1), promptly finish the cage of reinforcement integral hoisting of 1 hole cast-in-situ box girder.
6. the hanging method of box girder integral cage of reinforcement as claimed in claim 5, it is characterized in that: the hanging device of said box girder integral cage of reinforcement (61) comprise two parallel, the girder a (10) of trussed construction and girder b (11), the end of girder a (10) and girder b (11) all is connected with a front leg strut (5), the other end of girder a (10) and girder b (11) all is connected with a rear support leg (7), the middle part of girder a (10) and girder b (11) is connected with a middle supporting leg (6) at least, be respectively equipped with at least two electric blocks (12) that can move forward and backward along girder on girder a (10) and the girder b (11), the bottom of rear support leg (7) is provided with the rear support leg roller box (8) of band driving wheel (19), the bottom of middle supporting leg (6) is provided with the middle supporting leg roller box (9) of band driving wheel (19), the length of front leg strut (5) is greater than middle supporting leg (6) and rear support leg (7), and said driving wheel 19 and rail are adaptive.
7. the hanging device of box girder integral cage of reinforcement as claimed in claim 6 is characterized in that: the middle part of girder a (10) and girder b (11) is provided with two middle supporting legs (6).
8. the hanging device of box girder integral cage of reinforcement as claimed in claim 6 is characterized in that: be provided with at least two transverse reinforced bars (25) and at least eight oblique bracing pieces (26) between two middle supporting legs (6).
9. as the hanging device of claim 6 or 7 or 8 described box girder integral cage of reinforcement, it is characterized in that: the cross section of said girder a (10) and girder b (11) is del, the upper end is provided with two upper chords (24), the lower end is provided with one not only as lower chord but also as the i iron (15) of the cross moving track of electric block (12), electric block (12) is hung at the i iron lower edge; Front leg strut (5) comprises two foreleg columns (27), the top of two foreleg columns (27) is connected with the lower chord of girder a (10), the lower chord of girder b (11) respectively, the middle part of two foreleg columns (27) is provided with down transverse beam (13), the bottom of two foreleg columns (27) is equipped with and connects bearing pin (16), connect bearing pin (16) and be connected, and be provided with transverse beam (14) between girder a (10), the girder b (11) of front leg strut (5) connection with the retracting cylinder (18) that drives by hydraulic jack (17); Middle supporting leg (6) and rear support leg (7) include two symmetrically arranged curved supporting leg columns (22), two curved supporting leg columns (22) are separately fixed at transverse splicing distribution beam (21) two ends, transverse splicing distribution beam (21) and girder a (10), the upper chord (24) of girder b (11) connects, the girder a (10) that is connected or is connected with middle supporting leg (6) with rear support leg (7), be provided with connecting rod (20) between the lower chord of girder b (11), be provided with stiffening girder (23) between lower chord and transverse splicing distribution beam (21), be provided with stiffening girder (23) between transverse splicing distribution beam (21) and curved supporting leg column (22).
CNA2008101348971A 2008-08-06 2008-08-06 Lifting equipment and method of box girder integral steel reinforcement framework Pending CN101324055A (en)

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101457515B (en) * 2008-12-26 2010-09-15 中铁大桥局集团第二工程有限公司 In situ cast-in-situ steel girder railway bridge deck pre-stress concrete channel beam construction method
CN101956372A (en) * 2010-09-30 2011-01-26 中铁三局集团有限公司 Quick construction method for No. 0 section of prestressed concrete beam type bridge
CN102022001A (en) * 2010-12-28 2011-04-20 北京中铁房山桥梁有限公司 Integrated binding and locating device of single-box double-chamber full span box girder reinforcing steel bar
CN103121625A (en) * 2011-11-21 2013-05-29 攀钢集团攀枝花钢钒有限公司 Method for high altitude disassembly of large-scale part
CN104695335A (en) * 2015-01-15 2015-06-10 中铁四局集团第二工程有限公司 Overall reinforcement binding and hoisting construction method and construction device adopting upstroke movable scaffolding
CN105537470A (en) * 2015-12-17 2016-05-04 中铁十六局集团第三工程有限公司 Hydraulic pier shaft rebar machining formwork and pier shaft rebar construction technology
CN107792788A (en) * 2017-10-20 2018-03-13 甘肃酒钢集团宏兴钢铁股份有限公司 Overhead traveling crane reductor, reel hanging method in a kind of metallurgy workshop
CN108981590A (en) * 2018-06-13 2018-12-11 中铁隧道集团二处有限公司 A kind of high-speed rail precast beam positioning system
CN111851309A (en) * 2020-08-12 2020-10-30 安徽省公路桥梁工程有限公司 Cast-in-place box girder construction method
CN111996916A (en) * 2020-08-04 2020-11-27 中交第二航务工程局有限公司 Cast-in-place box girder integrated construction equipment and construction method thereof

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101457515B (en) * 2008-12-26 2010-09-15 中铁大桥局集团第二工程有限公司 In situ cast-in-situ steel girder railway bridge deck pre-stress concrete channel beam construction method
CN101956372A (en) * 2010-09-30 2011-01-26 中铁三局集团有限公司 Quick construction method for No. 0 section of prestressed concrete beam type bridge
CN102022001A (en) * 2010-12-28 2011-04-20 北京中铁房山桥梁有限公司 Integrated binding and locating device of single-box double-chamber full span box girder reinforcing steel bar
CN103121625A (en) * 2011-11-21 2013-05-29 攀钢集团攀枝花钢钒有限公司 Method for high altitude disassembly of large-scale part
CN103121625B (en) * 2011-11-21 2015-02-04 攀钢集团攀枝花钢钒有限公司 Method for high altitude disassembly of large-scale part
CN104695335A (en) * 2015-01-15 2015-06-10 中铁四局集团第二工程有限公司 Overall reinforcement binding and hoisting construction method and construction device adopting upstroke movable scaffolding
CN105537470A (en) * 2015-12-17 2016-05-04 中铁十六局集团第三工程有限公司 Hydraulic pier shaft rebar machining formwork and pier shaft rebar construction technology
CN107792788A (en) * 2017-10-20 2018-03-13 甘肃酒钢集团宏兴钢铁股份有限公司 Overhead traveling crane reductor, reel hanging method in a kind of metallurgy workshop
CN108981590A (en) * 2018-06-13 2018-12-11 中铁隧道集团二处有限公司 A kind of high-speed rail precast beam positioning system
CN111996916A (en) * 2020-08-04 2020-11-27 中交第二航务工程局有限公司 Cast-in-place box girder integrated construction equipment and construction method thereof
CN111851309A (en) * 2020-08-12 2020-10-30 安徽省公路桥梁工程有限公司 Cast-in-place box girder construction method
CN111851309B (en) * 2020-08-12 2022-07-05 安徽省公路桥梁工程有限公司 Cast-in-place box girder construction method

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