CN101041948A - Construction equipment for integral roof-holding highway bridge top superstructure - Google Patents
Construction equipment for integral roof-holding highway bridge top superstructure Download PDFInfo
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- CN101041948A CN101041948A CN 200710020876 CN200710020876A CN101041948A CN 101041948 A CN101041948 A CN 101041948A CN 200710020876 CN200710020876 CN 200710020876 CN 200710020876 A CN200710020876 A CN 200710020876A CN 101041948 A CN101041948 A CN 101041948A
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Abstract
The invention discloses a special construction device for integrally lifting or supporting the upper structure of road bridge, comprising a jacking beam, a support post, a reaction support, a hack, a lifting support, an anchor support, a horizontal connecting rod and a base. Without damaging bridge structure, changing bridge bearing element, and building falsework under the bridge, the invention respectively mounts a plurality of jacking devices at two ends of the upper structure of the jacked bridge, uses the support post supported at the top of the pier table as support point, uses the upper part of nearby bridge as anchor point, uses the jack as power, and uses the jack beam to jack the upper structure of whole bridge via lever theory, and when the lower structure of the bridge is widened, heightened, and maintained, the invention can support the upper part to needed height. The invention has synchronous, stable, quick and safe properties, while it can save time, material and cost, as one advanced automatic device.
Description
Technical field
The present invention relates to a kind of integral jacking or holder and fall the special construction apparatus of highway bridge superstructure.
Technical background
At present, highway bridge widen, frame is high and during the construction safeguarded, because of the deadweight of whole spanning superstructure excessive, former hanging devices such as nose girder and straddle truck can not be used again, must be complete removals such as the sidewalk of deck paving and bridge deck, railing, illuminations, again the vertically wet seam between superstructure beam or the plate is chiseled, piecewise beam or plate are hung out with crane.After treating the increasing and change bearing etc. and safeguard construction of bridge pier platform, piecewise beam or plate are hung back again, heavily build vertically wet seam, deck paving and the bridge deck of superstructure, make its reinstatement.Because the wet seam between beam or plate is a reinforced concrete structure, can allow beam or plate damaged with being difficult to when chiseling avoid, need take much time when removing again, chisel, lifting and heavily building, material and manpower, thisly have a big risk, the expense height, produce effects the job practices active demand slow and improve.
Summary of the invention
The purpose of this utility model provides a kind of construction equipment for integral roof-holding highway bridge top superstructure, realizes the mechanization lifting of whole spanning superstructure, saves human and material resources, financial resources in a large number, and work efficiency improves greatly.
The technical solution of the utility model is as follows:
The present invention is the special construction apparatus that the highway bridge superstructure falls in a kind of integral jacking or holder, comprises jacking beam, support column, reaction frame, jack, suspension bracket, anchor rack, transverse link and base.It is characterized in that: remove by jacking spanning and shrinkage joint, the bridge floor on border continuously etc. after all are connected, the jacking device packets is arranged in by the two ends of jacking spanning superstructure.If superstructure is made up of five reinforcing bar concrete T-type beams (or trough girder etc.), the beam-ends of every beam is arranged 1 jacking equipment, and promptly the every end of spanning is arranged 5, and totally 10 equipment jackings are constructed; If superstructure is made up of 12 reinforced concrete slabs, lighter because of the deadweight of plate, the plate end of every two boards is arranged 1 jacking equipment, and promptly the every end of spanning is arranged 6, totally 12 equipment jacking constructions.Every jacking equipment is anchored on the superstructure of adjacent spanning, and is stressed well-balanced in order to make, and the center line that requires jacking equipment and adjacent spanning beam or plate is on same vertical guide.Getting out diameter in two former lifting hole(eyelet) positions that adjacent bridge is stepped up every beam slab end of portion's structure is 100 millimeters anchor hole, so that anchor rack is installed.Penetrate this hole with one group of anchor pole more than two, with the following overhanging anchor beam bolt that places the last overhanging anchor beam of base and pocket in adjacent spanning beam slab bottom, the base anchor of jacking equipment on adjacent spanning beam slab; Got out diameter by two former lifting hole(eyelet) positions of every beam slab of jacking spanning superstructure is 100 millimeters lifting hole(eyelet), so that suspension bracket is installed.Penetrate this hole with one group of several lifting rope, will place the last overhanging hanging beam and the pocket of jacking beam suspension centre end being hitched by the following overhanging hanging beam of jacking spanning beam slab bottom; Connecting on the position of seam between the spanning that is symmetrical in every beam slab center line, getting out diameter is two supported holes of 120 millimeters, so that support column is installed.The axis pin base of supporting jacking beam and the screw bolt seat that rotating screw bolt can be regulated the support column height are arranged on the support column base of support column, and the lower end of screw rod is inserted in the steel pipe, and steel pipe penetrates supported hole and is supported on the cushion block that is placed on the bridge pier countertop.Reaction frame places the anchor rack position of base rear end, and the middle part of its top rail is equipped with the fixedly ring-like seat of monaural of jack, the two ends of top rail and column upper end bolt, and the lower end of column is bolted to base.The middle part of jacking beam is supported on the support column, and its suspension centre end hangs by the jacking beam slab, and power end connects jack.Start jack, get final product jacking or holder and fall by the whole superstructure of jacking spanning.Transverse link and base bolt unify one group of number of spanning end jacking equipment.Simultaneously, the displacement transducer of a high precision and large measuring range of every jacking equipment configuration is to jacking amount real-time tracking, connects with the jack switch board through the displacement processor and carries out jacking control synchronously automatically.When the shortage in weight of adjacent spanning when satisfying by the jacking force of jacking spanning, can step up the heap counterweight in adjacent bridge.
Described construction equipment for integral roof-holding highway bridge top superstructure, it is characterized in that: described jacking beam is big rigidity box-girder, its suspension centre end has the adjustable position and the fixing keyhole backing plate of suspension bracket, power end has the ring-like seat of the monaural that is connected with jack, there is the bearing pin that is supported on the support column top both sides of middle part, and the jacking beam can rotate around this axle.
Described construction equipment for integral roof-holding highway bridge top superstructure is characterized in that: described support column is positioned at jacking beam both sides, and it is vertical that its center line keeps.Every support column comprises support column base, screw rod, steel pipe and cushion block.Support column base and be bolted to base, the bearing pin of the axis pin base supporting jacking beam on its top, there is screw rod to install in the screw bolt seat of bottom to regulate bearing height and to be convenient to, the lower cylindrical of screw rod is inserted the upper end of steel pipe, the lower end of steel pipe penetrates the supported hole that spanning connects seam crossing and is enclosed within on the cushion block, and cushion block is positioned over the end face of bridge pier platform.
Described construction equipment for integral roof-holding highway bridge top superstructure is characterized in that: described reaction frame comprises top rail, column, slide rail and bracket for door shape rigid frame.The centre of top rail is equipped with the fixedly ring-like seat of monaural of jack, and its two ends bolt is fixed on the upper end of column.The slide rail of restricted jacking beam shifted laterally and energy adjusting position temporary support jacking beam are for the stressed bracket of jack on the column, and its underpart bolt is fixed in base.
Described construction equipment for integral roof-holding highway bridge top superstructure, it is characterized in that: described jack is a double acting single pole hydraulic cylinder, two ends are the ring-like mounting means of monaural, hydraulic cylinder cylinder barrel end is connected with the ring-like seat of the monaural of reaction frame top rail, and tailpiece of the piston rod is connected with the ring-like seat of the monaural of jacking beam power end.
Described construction equipment for integral roof-holding highway bridge top superstructure is characterized in that: described suspension bracket comprises overhanging hanging beam, following overhanging hanging beam, suspension ring and two groups of lifting ropes.Go up overhanging hanging beam according to being bolted on the suspension centre end of jacking beam by jacking spanning beam slab lifting hole(eyelet) position, suspension ring can be done on last overhanging hanging beam to the adjustment of the position of both sides, and following overhanging hanging beam pocket is by the bottom of jacking spanning beam slab.Lifting rope lies on the suspension ring of overhanging hanging beam, penetrates the lifting hole(eyelet) that is got out by two former lifting hole(eyelet)s of jacking spanning beam slab position, vertically lies in down the suspension ring of overhanging hanging beam.
Described construction equipment for integral roof-holding highway bridge top superstructure is characterized in that: described anchor rack comprises overhanging anchor rack, following overhanging anchor rack, bolt backing plate and two groups of anchor poles.Go up the base that overhanging anchor beam is bolted to the reaction frame position, overhanging anchor beam pocket is in the bottom of adjacent spanning beam slab down, anchor pole penetrates adjacent bridge and steps up the anchor hole that portion two former lifting hole(eyelet)s of structure beam slab position gets out, the last overhanging anchor beam and the following bolt backing plate bolt of overhanging anchor beam, with the base anchor on the beam slab of adjacent spanning.
Described construction equipment for integral roof-holding highway bridge top superstructure, it is characterized in that: described base is a rectangle, the support column base of front end bolt fixed support post, rear end bolt be the column of reaction frame and the last overhanging anchor beam of anchor rack fixedly, and both sides bolt fixed lateral connecting rod.
Described construction equipment for integral roof-holding highway bridge top superstructure is characterized in that: the base bolt of the jacking equipment of described transverse link after with installation in position, and the jacking equipment in the outside is provided with diagonal brace in addition, and the jacking equipment all the spanning end laterally unify.
Described construction equipment for integral roof-holding highway bridge top superstructure, it is characterized in that: the slide rail of described jacking beam, reaction frame and bracket are welded steel plate, overhanging beam up and down, transverse link and the base of the column of described reaction frame and top rail, suspension bracket and anchor rack forms for the shaped steel bolt, described lifting rope is a wire rope, described anchor pole is a finish rolling deformed bar, and the bolt backing plate of the support column base of described support column and cushion block, anchor rack is a cast iron.
Described construction equipment for integral roof-holding highway bridge top superstructure is characterized in that: described counterweight is stacked on the superstructure of adjacent spanning.
Principle of the present invention
For steadily, quickly and safely spanning superstructure integral jacking or holders tens of or hundreds of tons are fallen, carry out the construction that substructure bridge pier platform is widened, increased or safeguards.In that respectively being installed by the two ends of jacking spanning superstructure, one group of number jacking equipment disperses jacking force.The base of jacking equipment is fixed on the superstructure of adjacent spanning by anchor rack, utilizes the weight of adjacent spanning to come jacking by the jacking spanning.Support column penetrates the boring that spanning connects seam crossing, is supported on the center line of bridge pier countertop, reduces the off-centre of load as much as possible.The power end of jacking beam is connected with jack on being installed in reaction frame, and the suspension centre end is hung by the beam slab of jacking spanning superstructure by suspension bracket, and intermediate support is on support column.Utilizing lever principle, is intermediate support with the support column, and the jack of jacking beam power end is a power, and the suspension bracket of jacking beam suspension centre end will be fallen by the beam slab jacking or the holder of jacking.
Owing to be two groups of numbers jacking equipment co-operation, jacking amount for fear of each jacking equipment is inconsistent, cause that the spanning superstructure is because of discontinuity or be out of shape excessive laterally cracking, the displacement transducer of a high precision and large measuring range of every jacking equipment configuration, this sensor be fixed in jacking equipment position by the end of jacking beam slab, real-time tracking detects the jacking amount.All displacement transducers connect with the jack switch board through the displacement processor, and the jack of every jacking equipment is made Synchronization Control.When wherein arbitrary jacking equipment jacking is excessive, displacement transducer is measured this trace and is changed, the displacement processor inputs to switch board to signal immediately, by the electromagnetic valve on the corresponding jacking equipment jack oil pipe of the timely control of switch board, treat that the jacking amount of all the other jacking equipment catches up with, reach the purpose of synchronous whole jacking spanning superstructure.
Effect of the present invention
The present invention is in the structure that do not destroy a bridge, does not change the bridge construction stress condition, not be used under the bridge under the prerequisite that scaffolds erecting, is not subjected to ground, river and limited by the dealings, synchronously, steadily, the superstructure of highway bridge falls in integral jacking or holder quickly and safely, carries out the construction that bridge substructure is widened, increased or safeguards.Saved the time widely, material, manpower and expense, allow engineering bring into play benefit early.Simultaneously, this jacking equipment volume is little, in light weight, is convenient to transportation and installation, can reuse, and is applicable to the construction of the highway bridge of different spans, different beam and slab structure and different tonnages.
Description of drawings
Fig. 1 structural representation of facing of the present invention.
Fig. 2 plan structure schematic diagram of the present invention.
Fig. 3 jacking beam of the present invention elevation.
Fig. 4 jacking beam of the present invention vertical view.
Fig. 5 support column side-looking of the present invention structural representation.
Fig. 6 suspension bracket side-looking of the present invention structural representation.
The side-looking structural representation of Fig. 7 reaction frame of the present invention and anchor rack.
The specific embodiment
Referring to Fig. 1-10.A kind of construction equipment of whole jacking highway bridge superstructure comprises jacking beam 1, support column 4, reaction frame 11, jack 16, suspension bracket 17, anchor rack 22, base 27, transverse link 28.Behind cleaning bridge pier 32 end faces, on bridge pier 32 end faces, place cushion block 10, steel pipe 9 is penetrated supported hole 33 be enclosed within on the cushion block 10.In place after the position measurement setting-out of all jacking equipment, with the screw rod 8 in the spanner rotation support column base 5 bottom screw bolt seats 7, the upper end the cylinder of screw rod 8 lower ends inserts steel pipe 9 is threaded to base 27 slight jack-up, with bridge floor 1 centimetre gap is arranged approximately.Overhanging anchor beam 23 on bolt anchor rack 22 on the base 27 of anchor hole 34 positions, anchor pole 26 penetrates from anchor hole 34, the bolt backing plate 25 by last overhanging anchor beam 23 and bolt backing plate 25 usefulness anchor poles 26 bolts of pocket overhanging anchor beam 24 under adjacent spanning beam slab 30 bottoms, with base 27 anchors on adjacent spanning beam slab 30.With crossbeam connecting rod 28 base 27 of all jacking equipment laterally is connected into integral body.An amount of heap sandbag counterweight on the bridge floor of the adjacent spanning 30 of jacking equipment rear side is to increase the weight of adjacent spanning 30.Overhanging hanging beam 18 on bolt on the jacking beam 1 suspension centre end of lifting hole(eyelet) 35 positions, lifting rope 21 penetrates from lifting hole(eyelet) 35, and the suspension ring 20 of last overhanging hanging beam 18 and the pocket suspension ring 20 of overhanging hanging beam 19 under by jacking spanning beam slab 29 bottoms are hitched.Start the jack 16 jacking beam 1 of slinging, overhanging instantly hanging beam 19 is close to by behind jacking beam slab 29 bottoms, allows bracket 15 supporting jacking beams 1 on the reaction frame 11, temporarily replaces jack 16 stressed.All are respectively installed a displacement transducer by the end of jacking beam slab 29, and its displacement processor connects with the jack switch board and carries out automatically synchronously jacking control.After all jacking preparations of construction are ready, restart jack 16, remove bracket 15, carry out the superstructure of whole jacking bridge.When the bridge superstructure integral jacking after require height, need the long period if the construction that neoprene bearing 31 etc. safeguards is widened, increases or is changed to bridge substructure, the bracket 15 replacement jack 16 on the also available reaction frame 11 are stressed.After treating that bridge substructure is finished construction, start jack 16, remove bracket 15, allow and reduced on the bridge pier platform 32 of substructure by the whole holder of the superstructure of jacking spanning.
The effect of jacking beam 1 is a lever, and the bearing pin 2 at middle part is bearing on the support column 4, and the ring-like seat 3 of the monaural of power end connects jack 16, and suspension bracket 17 liftings of suspension centre end are by jacking beam slab 29.The effect of support column 4 is supporting jacking beams 1, bears all loads, and the bearing pin 2 that it supports axis pin base 6 supporting jacking beams 1 middle part on column base 5 tops supports the screw rod 8 of screw bolt seat 7 inside of column base 5 bottoms and installs in order to regulate bearing height and to be convenient to.The effect of steel pipe 9 is that support column base 5 is connected with cushion block 10, and its length is according to by the height setting of jacking spanning superstructure beam slab 29.The effect of cushion block 10 is supporting steel pipes 9, does not allow bridge pier platform 32 end faces stressed too concentrated.The effect of reaction frame 11 is that its top rail 12 is installed jack 16, and column 13 fixedly top rail 12 is also given base 27 the jacking Load Transfer.Slide rail 14 on the column 13 is to allow jacking beam 1 keep the duty of vertical direction operation, prevents the side direction unstability.The effect of bracket 15 is to replace jack 16 stressed when bridge substructure is widened, increased or safeguards the overlong time of constructing.The effect of suspension bracket 17 is that jacking beam 1 is hung by jacking beam slab 29.The effect of anchor rack 22 be the firm anchor of base 27 on adjacent spanning beam slab 30.The effect of base 27 is fixed support posts 4, reaction frame 11, anchor rack 22 and transverse link 28.The effect of transverse link 28 is that the base 27 of all jacking equipment of spanning end is laterally unified.
The concrete use of construction equipment for integral roof-holding highway bridge top superstructure
1, carries out job site preparation.Wait shrinkage joint that is connected with the border by the jacking spanning and bridge floor structure all to chisel out removing continuously.By the former lifting hole(eyelet) position of all beam slabs of jacking spanning and adjacent spanning, get out diameter and be 100 millimeters lifting hole(eyelet) and anchor hole with drill bit.Sew on and be symmetrical in each continuously by the jacking beam slab with drill bit in spanning again, getting out diameter is 120 millimeters supported hole, and clears up the bridge pier countertop.
2, after the bridge pier countertop is placed the support column cushion block, steel pipe is penetrated supported hole be enclosed within on the cushion block.
3, in place after the installation site of all the jacking equipment measurement setting-out.
4, support screw rod in the column base with spanner rotation, the cylinder of screw rod lower end is inserted steel pipe, be threaded to base jack-up about 1 centimetre apart from bridge floor.
5, penetrate the anchor hole that adjacent bridge is stepped up with one group of finish rolling deformed bar anchor pole more than two,, place adjacent bridge to step up on the base anchor the last overhanging anchor beam of base and pocket bolt backing plate bolt at the following overhanging anchor beam of adjacent spanning beam slab bottom.
6, with transverse link the base of all jacking equipment of spanning end is laterally unified.
7, the lifting rope with one group of several wire rope penetrates by the lifting hole(eyelet) of jacking spanning beam slab, and last overhanging hanging beam on the jacking beam and pocket are hitched at the suspension ring of the following overhanging hanging beam of adjacent spanning bottom.
8, treat that all jacking equipment are finished above-mentioned operation after, start jack one by one, the jacking beam begin the lifting.Treat down that overhanging hanging beam is close to by behind the jacking beam slab bottom, allow the bracket on the reaction frame temporarily replace jack stressed.
9, by the end of jacking beam slab a displacement transducer is installed respectively at all, its displacement processor connects with the jack switch board, so that carry out the whole automatic control of jacking bridge superstructure synchronously.
10, all jacking preparations of construction are ready, the superstructure of beginning integral jacking spanning.Start jack, remove the bracket on the reaction frame, will be by jacking spanning superstructure integral jacking to requiring height.If the construction that bridge substructure is widened, increased or safeguards needs the long time, replace jack stressed with the bracket on the reaction frame again.
11, carry out the construction that maintenances such as bearing were widened, increase or changed to bridge substructure.
12, treat that construction that bridge substructure is widened, increased or safeguards is finished after, start jack, remove bracket, allow the bridge pier countertop of being reduced to substructure by the whole holder of the superstructure of jacking spanning.
13, finish the construction of whole jacking highway bridge superstructure when the time comes.
Claims (9)
1, a kind of construction equipment for integral roof-holding highway bridge top superstructure, comprised the jacking beam, support column, reaction frame, jack, suspension bracket, anchor rack, transverse link and base, it is characterized in that: one group of number jacking equipment respectively is being installed by the two ends of jacking spanning superstructure, and connect with transverse link, the base of every jacking equipment is fixed on the superstructure of adjacent spanning with anchor rack, the jacking beam is installed on the base, support column and reaction frame, the power end of jacking beam is connected with jack on being installed in reaction frame, the suspension centre end hangs by the beam or the plate of jacking spanning superstructure with suspension bracket, and intermediate supports is at the support column top of bridge pier countertop.
2, construction equipment for integral roof-holding highway bridge top superstructure according to claim 1 is characterized in that: the layout of described jacking equipment, when being the beam type superstructure, a jacking equipment is installed at the beam-ends of every beam by the spanning of jacking; When being board-like superstructure by the spanning of jacking, at the plate end of every two boards a jacking equipment is installed, jacking equipment with by the center line of jacking beam slab on same vertical guide.
3, construction equipment for integral roof-holding highway bridge top superstructure according to claim 1, it is characterized in that: described jacking beam is a box-girder, its suspension centre end has the adjustable position and the fixing keyhole of suspension bracket, power end has the ring-like seat of the monaural that is connected with jack, and there is the bearing pin that is supported on the support column top both sides of middle part.
4, construction equipment for integral roof-holding highway bridge top superstructure according to claim 1, it is characterized in that: described support column is positioned at the both sides at jacking beam middle part, it is vertical that its center line keeps, every support column comprises support column base, screw rod, steel pipe and cushion block, support the column base bolt and be fixed in base, supporting column base top has the axis pin base of supporting jacking beam, in the screw bolt seat of support column base bottom screw rod is arranged, the cylinder of screw rod bottom inserts steel pipe, the steel pipe lower end is enclosed within on the cushion block, and cushion block is placed on the end face of bridge pier platform.
5, construction equipment for integral roof-holding highway bridge top superstructure according to claim 1, it is characterized in that: described reaction frame is door shape rigid frame, comprise top rail, column, slide rail and bracket, the centre of top rail is equipped with the fixedly ring-like seat of monaural of jack, the two ends bolt of top rail is fixed in the top of column, the bracket of the slide rail of restricted jacking beam shifted laterally and energy adjusting position temporary support jacking beam on the column, its underpart bolt is fixed in base.
6, construction equipment for integral roof-holding highway bridge top superstructure according to claim 1 is characterized in that: described suspension bracket comprises overhanging hanging beam, following overhanging hanging beam, suspension ring and two groups of lifting ropes.Go up overhanging hanging beam according to by the hoisting point position of jacking spanning beam slab, bolt is fixed on the suspension centre end of jacking beam, down overhanging hanging beam pocket is by the bottom of jacking beam slab, and suspension ring can be done the position adjustment of both sides on last overhanging hanging beam, and lifting rope lies in overhanging hanging beam and descends the suspension ring of overhanging hanging beam.
7, construction equipment for integral roof-holding highway bridge top superstructure according to claim 1, it is characterized in that: described anchor rack comprises overhanging anchor beam, following overhanging anchor beam, bolt backing plate and two groups of anchor poles, go up overhanging anchor beam and be bolted to base, overhanging anchor beam pocket is in the bottom of adjacent spanning beam slab down, and anchor pole is bolted to the bolt backing plate of overhanging anchor beam and following overhanging anchor beam.
8, construction equipment for integral roof-holding highway bridge top superstructure according to claim 1, it is characterized in that: described base is a rectangle, the support column base of front end bolt fixed support post, the rear end bolt is the column of reaction frame and the last overhanging anchor beam of anchor rack fixedly, and both sides bolt fixed lateral connecting rod.
9, construction equipment for integral roof-holding highway bridge top superstructure according to claim 1, it is characterized in that: the slide rail of described jacking beam, reaction frame and bracket are welded steel plate, overhanging beam up and down, transverse link and the base of the column of described reaction frame and top rail, suspension bracket and anchor rack forms for the shaped steel bolt, described lifting rope is a wire rope, described anchor pole is a finish rolling deformed bar, and the bolt backing plate of the support column base of described support column and cushion block, anchor rack is a cast iron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100208762A CN100497834C (en) | 2007-04-10 | 2007-04-10 | Construction equipment for integral roof-holding highway bridge top structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100208762A CN100497834C (en) | 2007-04-10 | 2007-04-10 | Construction equipment for integral roof-holding highway bridge top structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101041948A true CN101041948A (en) | 2007-09-26 |
| CN100497834C CN100497834C (en) | 2009-06-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100208762A Expired - Fee Related CN100497834C (en) | 2007-04-10 | 2007-04-10 | Construction equipment for integral roof-holding highway bridge top structure |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102535347A (en) * | 2012-03-09 | 2012-07-04 | 中铁四局集团第二工程有限公司 | Continuous beam falling system and continuous beam falling method |
| WO2020052637A1 (en) * | 2018-09-14 | 2020-03-19 | 武大巨成结构股份有限公司 | Device for alternately jacking added storey of building with high-strength concrete columns and steel slideways and construction method therefor |
| CN111130049A (en) * | 2019-12-16 | 2020-05-08 | 上海市基础工程集团有限公司 | Telescopic rotary submarine cable back-twisting frame |
| CN112160256A (en) * | 2020-08-03 | 2021-01-01 | 中交路桥建设有限公司 | Transverse integral reinforcing construction method for bridge |
-
2007
- 2007-04-10 CN CNB2007100208762A patent/CN100497834C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102535347A (en) * | 2012-03-09 | 2012-07-04 | 中铁四局集团第二工程有限公司 | Continuous beam falling system and continuous beam falling method |
| CN102535347B (en) * | 2012-03-09 | 2013-11-06 | 中铁四局集团第二工程有限公司 | Continuous beam falling system and continuous beam falling method |
| WO2020052637A1 (en) * | 2018-09-14 | 2020-03-19 | 武大巨成结构股份有限公司 | Device for alternately jacking added storey of building with high-strength concrete columns and steel slideways and construction method therefor |
| CN111130049A (en) * | 2019-12-16 | 2020-05-08 | 上海市基础工程集团有限公司 | Telescopic rotary submarine cable back-twisting frame |
| CN112160256A (en) * | 2020-08-03 | 2021-01-01 | 中交路桥建设有限公司 | Transverse integral reinforcing construction method for bridge |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100497834C (en) | 2009-06-10 |
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Granted publication date: 20090610 Termination date: 20120410 |