CN209584873U - The double interim rope self-balancing push mode suspension bridge sling replacing underpinning devices of straddle-type - Google Patents
The double interim rope self-balancing push mode suspension bridge sling replacing underpinning devices of straddle-type Download PDFInfo
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- CN209584873U CN209584873U CN201822057279.3U CN201822057279U CN209584873U CN 209584873 U CN209584873 U CN 209584873U CN 201822057279 U CN201822057279 U CN 201822057279U CN 209584873 U CN209584873 U CN 209584873U
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Abstract
The utility model discloses a kind of double interim rope self-balancing push mode suspension bridge sling replacing underpinning devices of straddle-type, belong to civil engineering suspension bridge maintenance and reinforcement field of engineering technology, including main push-towing rope (13), steel box-girder otic placode (15) are provided with below the main push-towing rope (13), permanent cord clip (14) are provided in the middle part of the main push-towing rope (13), the top of permanent hoist cable (16) is connected with the permanent cord clip (14), and the bottom end of the permanent hoist cable (16) is connected with the steel box-girder otic placode (15)；The middle and lower part two sides of the permanent hoist cable (16) are symmetrically arranged with reaction beam (12), it is provided with permanent cable stretching jack (10) below the reaction beam (12), the permanent cable stretching jack (10) is located on the top surface of permanent cable stretching shoulder pole girder (11).Construction cost is high when the utility model solves suspension bridge sling replacing, influences the problems such as big, work progress is complicated to bridge structure standing state.
Description
Technical field
The utility model relates to a kind of double interim rope self-balancing push mode suspension bridge sling replacing underpinning devices of straddle-type, belong to
In civil engineering suspension bridge maintenance and reinforcement field of engineering technology.
Background technique
Sling of suspension bridge be easiest to be damaged in suspension bridge component, one of the primary structure member of most critical, design life
Only 20 years, and the design period of suspension bridge is generally 100 years or more, therefore during the design life of suspension bridge, hangs
Rope will at least be replaced 4-6 times.
Hoist cable installation when relative to bridge construction, suspension bridge sling replacing is installed without anchor road and hoisting hook during one's term of military service
It is standby to can use, the problems such as facing uninterrupted traffic, high altitude operation, construction faciostenosis, and exist and remove old rope and new rope is installed
Two kinds of constructions, complicated construction technique.If it is bad that the sling of suspension bridge selected underpins system, hold very much in hoist cable replacement work progress
Easily influence Suspension bridge structure linear and internal force, make replacement front and back structural internal force, it is linear that great changes will take place.As it can be seen that suspension cable
The suspender replacement of bridge has the characteristics that big difficulty, complicated construction technique, replacement cost are high.
Although the country has Jiangyin Yangtse River suspension bridge, Fushun Tian Hu self-anchored type Concrete suspension bridge and Shantou Bay Bridge to go out
The case of hoist cable is now replaced, but correlation technique data is still less.Document " the detection of large-span suspension bridge abnormal sound wirerope drop shot rope
And replacement " and patent 1(CN207685669U) disclose Jiangyin Bridge drop shot rope replace device and process, core technology be
Interim rope is arranged in the side of permanent rope, and tensioning makes the Suo Li of permanent rope be reduced to zero, then removes hoist cable.This method uses single-point
Replacement, when interim cable stretching is smaller, there are Suo Li, pin shafts to remove difficult for hoist cable to be replaced；When interim cable force be stretched to
When to hang cable force be zero, the Suo Li of interim rope is very big, and lifting lug otic placode has been surrendered for replacement, is plastically deformed, meanwhile, temporarily
Suo Li great perturbs also greatly main push-towing rope and the linear of stiff girder.Patent 2(CN202214681U) describe the hoist cable of suspension bridge a kind of
More changing device, it installs interim cable stretching device in the side of hoist cable to be replaced, and it is real to arrange that punching load transducer carries out
When monitor.A kind of drop shot rope more changing device is announced, and arranges interim tensioning equipment in the side of interim hoist cable, is made by tensioning
It is to be replaced to hang cable force decline, there is a problem of that same patent 1 is same.Patent 3(CN106480822A) disclose a kind of suspension bridge
How the method that hoist cable replaces system and replaces sling of suspension bridge puts rope after removing this method give old rope or before new rope installation
With the process of hanging cable, how do not give makes the work progress and device to be replaced for hanging cable force zero, and the part lacked is
The core and key content of suspension bridge sling replacing.Document " Shantou Bay Bridge tests hoist cable replacement engineering construction and monitoring " is public
A kind of suspension bridge sling replacing mode of cloth, it is arranged truss in bridge floor first, is supported in adjacent hoist cable crossbeam, utilizes former girder
The hole for hoist being arranged when prefabricated subsection lifting construction lifts by crane beam body in advance.Then, the replacement of hoist cable is carried out in two ways:
One is the anchor bolt spreadings to hoist cable, and upper and lower support frame is arranged in the anchor bolt of anchor slab and spreading, and intermediate arrangement jack drives
Dynamic jack jacks upper lower bracing frame, loosens the nut of former anchor bolt, realizes replacement.Another way is that stiff girder is arranged above and below
Reaction beam unloads hoist cable internal force by jacking upper reaction beam, realizes hoist cable replacement.Unquestionably, this scheme for changing rope is than it
Front case has apparent advantage, and beam body need to only be lifted by crane in advance 400 kN by it, and not have to the Suo Li for making hoist cable to be replaced
It is reduced to zero, so that realizing that and internal force linear to stiffening girder of suspension bridge is dry scratches least target.In order to overcome single-point to hang single-point replacement
When, the excessive problem of interim cable force, Jiangyin Bridge is in nearest hoist cable replacement, using the lifting of five suspension centres replacement one
The scheme of hoist cable is successfully realized the replacement of hoist cable.This method has that operation side is more, on the state of existing bridge influence it is big,
The wide feature of range.
As it can be seen that domestic had deeper research to suspension bridge sling replacing technology.But it is big that the utility model relies on profit to raise
Bridge crane rope replaces engineering, and some news occurs in the hoist cable replacement problem encountered: first is that the steel anchor box ear of Run-yang bridge
The construction of plate is different from Jiangyin Bridge and Shantou Bay Bridge, it has reserved two lifting lug holes, and Jiangyin Bridge has only reserved one
A lifting lug hole, Shantou Bay Bridge girder do not have using the prestressed reinforced concrete box beam of single three Room thin-walled fish-bellied type section of case
If shackle plate.Second is that the hoist cable form of each seat bridge is different.The hoist cable of Jiangyin Bridge uses wirerope, and both ends use pin shaft
Formula fork-shaped otic placode hoist cable, anchor cup is made into vase-shaped；Shantou Bay Bridge then uses straddle-type wire rope sling, the company with stiff girder
It connects using cast-in fixing bolt formula.And the hoist cable of Run-yang bridge uses parallel steel wire, although both ends use pin type fork-shaped otic placode, anchor
Cup does conical.In conclusion existing technological means is unable to complete the replacement of the hoist cable of Run-yang bridge, the utility model exists
Sufficiently on the basis of the construction of the research upper and lower anchored end of Run-yang bridge hoist cable, has devised hoist cable replacement and underpin system.
Utility model content
The utility model underpins system deficiency for existing suspension bridge sling replacing, in conjunction with the upper and lower anchor of Run-yang bridge hoist cable
The construction of fixed end proposes a kind of double interim rope self-balancing push mode suspension bridge sling replacing underpinning devices of straddle-type, solves
Construction cost is high when suspension bridge sling replacing, influences that big, work progress is complicated, difficulty is big etc. to bridge structure standing state asks
Topic.
In order to solve the above technical problems, the technical solution adopted by the utility model is:
The double interim rope self-balancing push mode suspension bridge sling replacing underpinning devices of straddle-type, including main push-towing rope, the main push-towing rope
Lower section is provided with steel box-girder otic placode, and permanent cord clip, the top of permanent hoist cable and the permanent rope are provided in the middle part of the main push-towing rope
Folder is connected, and the bottom end of the permanent hoist cable is connected with the steel box-girder otic placode；
The middle and lower part two sides of the permanent hoist cable are symmetrically arranged with reaction beam, and permanent rope is provided with below the reaction beam
Jack is drawn, the permanent cable stretching jack is located on the top surface of permanent cable stretching shoulder pole girder, the permanent cable stretching shoulder pole
Beam is a pair of split beam, and the split beam casing lives the permanent hoist cable to be replaced；
Be provided with interim hoist cable shoulder pole girder between the identical end of two reaction beams, the permanent cord clip two sides it is described
It is provided with interim cord clip on main push-towing rope, is provided between the interim cord clip of same side and the interim hoist cable shoulder pole girder interim
Hoist cable is connected with interim hoist cable tensioning screw rod between the interim hoist cable shoulder pole girder and the steel box-girder otic placode；The interim hoist cable
The top of tensioning screw rod sequentially passes through interim hoist cable tensioning support foot and interim hoist cable after being pierced by the interim hoist cable shoulder pole girder again
It is fixed after drawing jack by interim hoist cable tensioning nut.
The bottom end of the interim hoist cable tensioning screw rod is connected with the first connecting fork ear, the first connecting fork ear and the steel case
It is fixedly connected between beam otic placode by tensioning screw rod pin shaft.
The both ends of the permanent hoist cable are provided with the second connecting fork ear, the second connecting fork ear and the steel box-girder ear
It is fixedly connected between plate or permanent cord clip by permanent hoist cable pin shaft.
The interim cord clip is the Snap ring structure that set wraps the main push-towing rope, and the top of the Snap ring structure is provided with for accommodating
The recess of the interim hoist cable, after being placed in the recess in the middle part of the interim cord clip both ends extend downward vertically and with institute
Interim hoist cable shoulder pole girder is stated to be fixedly connected.
The interim hoist cable shoulder pole girder center is provided with the tension rod for passing through the interim hoist cable tensioning screw rod top
Hole, the interim hoist cable shoulder pole girder both ends are provided with the interim rope hole for fixing the interim hoist cable.
Two split beams of the permanent cable stretching shoulder pole girder are fixedly connected by c-type set.
The reaction beam is steel I-beam, is provided with several webs and lateral stiffening plate on the steel I-beam.
The interim cord clip is that thin-walled is light-duty.
The light-duty thin-walled includes the interim cord clip made of iron plate or copper sheet of the thickness less than 0.5cm.
The permanent cable stretching shoulder pole girder is located at the anchor cup of the permanent hoist cable to be replaced.
A kind of double interim rope self-balancing push mode suspension bridge sling replacing underpinning devices of straddle-type provided by the utility model,
Interim hoist cable uses straddle-type, and interim cord clip by pressure, need only only be made, interim cord clip is light, is convenient for of thin-walled lightweight material
Installation and construction.The effect of interim cord clip is to play safety protection function to main push-towing rope, prevents from being scratched by interim hoist cable；The utility model
In interim hoist cable need only be stretched to target Suo Li, without huge stretching force is applied, the Suo Li of hoist cable to be replaced is made to be reduced to zero.
On the one hand the effect of interim hoist cable is the Suo Li (being not zero) for reducing hoist cable to be replaced, be on the other hand entirely to change rope process and mentioning
For safety guarantee.
The utility model has the advantage that one, adapts to the reserved two lifting lug holes of lifting lug anchor slab, different hoist cable spacing,
The hoist cable replacement operation of all kinds of suspension bridges of sling length；Two, interim hoist cable uses straddle-type, interim cord clip only by pressure, because
The thin-walled that this interim cord clip only needs to make is light-duty, and the cost of material is low；Three, hoist cable replace when, do not need interim hoist cable be stretched to
The Suo Li of replacement hoist cable is zero to remove again, but directly utilize self balancing device, is hung using hoist cable tensioning system to be replaced replacement
Rope makes the pin shaft stress zero of hoist cable to be replaced.Four, the main push-towing rope of existing suspension bridge, the linear of stiff girder and internal force are perturbed it is small,
Structure safety；Five, this underpins the hoist cable replacement that system can be used at close bridge tower position.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of reaction beam in the utility model；
Fig. 3 is the structural schematic diagram of interim hoist cable shoulder pole girder in the utility model；
Fig. 4 is the structural schematic diagram of permanent cable stretching shoulder pole girder in the utility model；
Fig. 5 is the structural schematic diagram of interim hoist cable tensioning screw rod in the utility model；
Fig. 6 is the structural schematic diagram of interim cord clip in the utility model；
Wherein: 1, interim cord clip, 2, interim hoist cable, 3, interim hoist cable shoulder pole girder, 4, interim hoist cable tensioning support foot, 5, interim
Hoist cable stretch-draw jack, 6, interim hoist cable tensioning nut, 7, interim hoist cable tensioning screw rod, the 8, first connecting fork ear, 9, tensioning spiral shell
Lever pin axis, 10, permanent cable stretching jack, 11, permanent cable stretching shoulder pole girder, 12, reaction beam, 13, main push-towing rope, 14, permanent cord clip,
15, steel box-girder otic placode, 16, permanent hoist cable, 17, permanent hoist cable pin shaft, 18, recess, 19, web, 20, lateral stiffening plate, 21,
Tie rod hole, 22, interim rope hole, 23, split beam.
Specific embodiment
The utility model is further described with reference to the accompanying drawing.
As shown in Fig. 1 ~ Fig. 6, the double interim rope self-balancing push mode suspension bridge sling replacing underpinning devices of straddle-type, including master
Cable 13, the lower section of the main push-towing rope 13 are provided with steel box-girder otic placode 15, and the middle part of the main push-towing rope 13 is provided with permanent cord clip 14, permanently
The top of hoist cable 16 is connected with the permanent cord clip 14, and the bottom end of the permanent hoist cable 16 is connected with the steel box-girder otic placode 15；
The middle and lower part two sides of the permanent hoist cable 16 are symmetrically arranged with reaction beam 12, are provided with forever below the reaction beam 12
Long cable stretching jack 10, the permanent cable stretching jack 10 is located on the top surface of permanent cable stretching shoulder pole girder 11, it is described forever
Long cable stretching shoulder pole girder 11 is a pair of split beam 23, and the split beam 23 entangles the permanent hoist cable 16 to be replaced；
Interim hoist cable shoulder pole girder 3, permanent 14 two sides of cord clip are provided between the identical end of two reaction beams 12
The main push-towing rope 13 on be provided with interim cord clip 1, the interim cord clip 1 and the interim hoist cable shoulder pole girder 3 of same side it
Between be provided with interim hoist cable 2, be connected with interim hoist cable tensioning spiral shell between the interim hoist cable shoulder pole girder 3 and the steel box-girder otic placode 15
Bar 7；The top of the interim hoist cable tensioning screw rod 7 sequentially passes through interim hoist cable after being pierced by the interim hoist cable shoulder pole girder 3 again
It is fixed by interim hoist cable tensioning nut 6 after stay bolt foot 4 and interim hoist cable stretch-draw jack 5.
The bottom end of the interim hoist cable tensioning screw rod 7 is connected with the first connecting fork ear 8, the first connecting fork ear 8 with it is described
It is fixedly connected between steel box-girder otic placode 15 by tensioning screw rod pin shaft 9.
The both ends of the permanent hoist cable 16 are provided with the second connecting fork ear, the second connecting fork ear and the steel box-girder
It is fixedly connected between otic placode 15 or permanent cord clip 14 by permanent hoist cable pin shaft 17.
The interim cord clip 1 is the Snap ring structure that set wraps the main push-towing rope 13, and the top of the Snap ring structure, which is provided with, to be used for
The recess 18 of the interim hoist cable 2 is accommodated, the middle part of the interim cord clip 1 is placed in the recess 18 rear both ends downward vertically
Extend and is fixedly connected with the interim hoist cable shoulder pole girder 3.
Interim 3 center of hoist cable shoulder pole girder is provided with the tensioning for passing through interim 7 top of hoist cable tensioning screw rod
Rod aperture 21, interim 3 both ends of hoist cable shoulder pole girder are provided with the interim rope hole 22 for fixing the interim hoist cable 2.Each face
When hoist cable shoulder pole girder 3 on be respectively provided with there are two interim rope hole 22, be provided with tensioning rod aperture 21 between two interim rope holes 22.Temporarily
22 spacing of rope hole depends on 13 diameter of main push-towing rope.
The split beam 23 of two of the permanent cable stretching shoulder pole girder 11 is fixedly connected by c-type set.Permanent cable stretching
The split beam 23 of 11 20 centimetres of preferably a pair of thickness of shoulder pole girder entangles permanent hoist cable 1, and then left and right beam is connected into c-type set
One, and nut pull rod is extended transversely through, apply lateral precompression.
The reaction beam 12 is steel I-beam, is provided with several webs 19 and lateral stiffening plate 20 on the steel I-beam,
To enhance local stability.
The interim cord clip 1 is that thin-walled is light-duty.
The light-duty thin-walled includes the interim cord clip 1 made of iron plate or copper sheet of the thickness less than 0.5cm.
The permanent cable stretching shoulder pole girder 11 is located at the anchor cup of the permanent hoist cable 16 to be replaced.
The device of the present embodiment makes full use of profit to raise existing a pair of of the otic placode of bridge and reserves pin shaft hole, in permanent 14 two sides of cord clip
Each a pair of interim cord clip 1 of arrangement.Interim 2 one end of hoist cable is set on interim cord clip 1 using straddle-type, the other end by nut with
Interim hoist cable shoulder pole girder 3 connects, and interim 3 center reserving hole of hoist cable shoulder pole girder passes through convenient for interim hoist cable tensioning screw rod 7.In
Interim hoist cable tensioning support foot 4, interim hoist cable stretch-draw jack 5 and interim hoist cable tensioning are shelved in the upside of interim hoist cable shoulder pole girder 3
Nut 6.
The underpinning device that the present embodiment is related to is by interim cord clip 1, interim hoist cable 2, interim hoist cable shoulder pole girder 3, interim hoist cable
Tensioning screw rod 7, interim hoist cable tensioning nut 6, interim hoist cable tensioning support foot 4, interim hoist cable stretch-draw jack 5, the first connecting fork
Ear 8, tensioning screw rod pin shaft 9, steel box-girder otic placode 15, hoist cable tensioning system to be replaced (reaction beam 12, permanent cable stretching shoulder pole girder
11, permanent cable stretching jack 10) etc. composition.
The technical characteristics of the underpinning device are as follows:
1. 2 upper end of interim hoist cable of underpinning device is connect using straddle-type with main push-towing rope 13, interim cord clip 1 be pressurized not by
It draws, therefore can be designed to that thin-walled is light-duty, self weight has lacked 90% compared with fixed cord clip.
2. 2 lower end of interim hoist cable of underpinning device is interim hoist cable shoulder pole girder 3, reserved of interim 3 center of hoist cable shoulder pole girder
Tie rod hole 21 passes through convenient for interim hoist cable tensioning screw rod 7.First connecting fork ear 8 of the lower end of interim hoist cable tensioning screw rod 7 uses
Pin is connect with steel box-girder otic placode 15.The interim 5 interim hoist cable tensioning screw rod 7 of pushing tow of hoist cable stretch-draw jack, applies interim hoist cable 2
Jia Suoli.On the one hand the effect of interim hoist cable 2 is to play unloading to permanent hoist cable 16 to be replaced, be on the other hand to be replaced
The work progress of permanent hoist cable 16 plays safety protection function.
3. existing steel box-girder in underpinning device, steel box-girder otic placode 15, permanent hoist cable pin shaft 17, the first connecting fork ear 8, interim
Hoist cable tensioning screw rod 7 and interim hoist cable tensioning nut 6, reaction beam 12 form a self-balancing system, for permanent hoist cable 16
Replacement.It can be realized in the case where permanent hoist cable 16 has remaining Suo Li, pin shaft stress is reduced to zero by single suspension centre tensioning, thus
It realizes that permanent hoist cable 16 has Suo Li dismounting, the linear and internal force of girder, main push-towing rope 13 is influenced smaller.
4. installing permanent cable stretching shoulder pole girder 11 at the anchor cup of permanent hoist cable 16 to be replaced, reaction beam 12 and permanent rope are arranged
Stretch-draw jack 10.When permanent cable stretching jack 10 works, in the pedestal of permanent cable stretching jack 10, the transmission path of power
It is: 10 → reaction beam of permanent cable stretching jack 12 → interim hoist cable shoulder pole girder 3 → interim hoist cable tensioning nut 6 → interim hoist cable
7 → the first connecting fork ear 8 → tensioning screw rod, 9 → steel box-girder of pin shaft otic placode 15 of tensioning screw rod.In permanent cable stretching jack 10
The power transmission path of the other end, permanent cable stretching jack 10 is: permanently cable stretching jack 10 → permanent cable stretching shoulder pole girder
11 → permanent hoist cable 16 to be replaced.
5. permanent hoist cable 16 is replaced, slightly unloads and pacify since interim hoist cable 2 only plays permanent hoist cable 16 to be replaced
Full protection effect, and the Suo Li that original permanent hoist cable pin shaft 17 undertakes is transferred to reaction beam 12 and held by permanent cable stretching jack 10
Load, the Suo Li of permanent hoist cable 16 neither will increase, will not reduce.Therefore, form of construction work is replaced using above-mentioned hoist cable, to main push-towing rope
13, the internal force and linear influence of girder and permanent hoist cable 16 are smaller, and the influence to Suo Li around is also small.
6. due to the present embodiment 16 replacing options of permanent hoist cable to original structure it is dry scratch variation be reduced to it is minimum, forever
Construction safety when long hoist cable 16 is replaced, it is convenient；
7. the Replacing Scheme of hoist cable at a suspension centre is replaced using three suspension centres or five suspension centres relative to the replacement of some suspension bridges, this
Hoist cable Replacing Scheme only need to arrange more changing device on permanent 16 position of hoist cable to be replaced, reduce operation side and construction is faced
When facility, solve the problems such as construction is complicated and the construction period is long.
The installation steps of the present embodiment are as follows:
Step 1: preparing before construction
Underpinning device dimensional drawing, setting-out, blanking, assembly, drilling, welding are replaced according to hoist cable.Detect hoist cable to be replaced
Suo Li and construction before preparation (hoist engine, material, component etc.)；
Step 2: interim hoist cable installation
Interim cord clip 1, interim hoist cable 2, interim hoist cable shoulder pole girder 3, interim hoist cable tensioning screw rod 7, interim hoist cable are installed
Stay bolt foot 4, interim hoist cable stretch-draw jack 5, interim hoist cable tensioning nut 6, then the interim hoist cable 2 of tensioning makes to target Suo Li
Old hoist cable part Suo Li is transferred to interim hoist cable 2；
Step 3: permanent hoist cable, permanent cord clip and replacement underpinning device installation
Permanent cable stretching shoulder pole girder 11, permanent cable stretching jack 10 and reaction beam 12 are installed.
Step 4: the dismounting of permanent hoist cable to be replaced
With permanent 10 pushing reaction beam 12 of cable stretching jack, permanent cable stretching shoulder pole girder 11 is drawn, tensioning is to be replaced forever
Long hoist cable 16, makes the Suo Li of old hoist cable be transferred to interim hoist cable tensioning screw rod 7, and permanent hoist cable pin shaft 17 is made to be in unstressed shape
State removes permanent hoist cable pin shaft 17, and then the slowly unloading of permanent cable stretching jack 10, removes tensioning system, remove it is old forever
Long hoist cable 16；Then the permanent hoist cable pin shaft 17 of old 16 upper end of permanent hoist cable is removed with hoist engine, and old rope is slowly placed into bridge
Face.
Step 5: new rope installation
New permanent hoist cable 16 installs the permanent hoist cable pin shaft 17 in end by elevator machine travel, and it is flat then to install permanent cable stretching
Spreader beam 11 and reaction beam 12, with permanent 10 pushing reaction beam 12 of cable stretching jack and permanent cable stretching shoulder pole girder 11, tensioning is new
Rope keeps the second connecting fork ear of new rope and 15 preformed hole of steel box-girder otic placode concentric, installs permanent hoist cable pin shaft 17, removes tensioning system
System；
Step 6: repeating above step 4 and step 5, remove another old rope, another Gen Xinsuo is installed；
Step 7: removing underpinning device and interim hoist cable
It removes hoist cable and replaces underpinning device, interim hoist cable 2, interim hoist cable shoulder pole girder 3, interim hoist cable tensioning screw rod 7 and face
When cord clip 1 etc., interim 2 Suo Li of hoist cable is transferred on a pair of new permanent hoist cable 16, hangs cable force and redistribute, hoist cable has been replaced
Finish.
The above is only the preferred embodiment of the utility model, it should be pointed out that: for the common skill of the art
For art personnel, without departing from the principle of this utility model, several improvements and modifications can also be made, these improve and
Retouching also should be regarded as the protection scope of the utility model.
Claims (10)
1. the double interim rope self-balancing push mode suspension bridge sling replacing underpinning devices of straddle-type, it is characterised in that: including main push-towing rope
(13), it is provided with steel box-girder otic placode (15) below the main push-towing rope (13), is provided with permanent cord clip in the middle part of the main push-towing rope (13)
(14), the top of permanent hoist cable (16) is connected with the permanent cord clip (14), the bottom end of the permanent hoist cable (16) and the steel
Box beam otic placode (15) is connected；
The middle and lower part two sides of the permanent hoist cable (16) are symmetrically arranged with reaction beam (12), are provided with below the reaction beam (12)
Permanent cable stretching jack (10), the permanent cable stretching jack (10) are located at the top surface of permanent cable stretching shoulder pole girder (11)
On, the permanent cable stretching shoulder pole girder (11) is a pair of split beam (23), the split beam (23) entangle it is to be replaced it is described forever
Long hoist cable (16)；
Interim hoist cable shoulder pole girder (3), the permanent cord clip (14) two are provided between the identical end of two reaction beams (12)
It is provided with interim cord clip (1) on the main push-towing rope (13) of side, the interim cord clip (1) of same side and the interim hoist cable are flat
It is provided between spreader beam (3) interim hoist cable (2), connects between the interim hoist cable shoulder pole girder (3) and the steel box-girder otic placode (15)
There is interim hoist cable tensioning screw rod (7)；The top of the interim hoist cable tensioning screw rod (7) is pierced by the interim hoist cable shoulder pole girder (3)
It is sequentially passed through again after interim hoist cable tensioning support foot (4) and interim hoist cable stretch-draw jack (5) afterwards by interim hoist cable tensioning nut (6)
It is fixed.
2. the double interim rope self-balancing push mode suspension bridge sling replacing underpinning devices of straddle-type according to claim 1,
Be characterized in that: the bottom end of the interim hoist cable tensioning screw rod (7) is connected with the first connecting fork ear (8), the first connecting fork ear (8)
It is fixedly connected between the steel box-girder otic placode (15) by tensioning screw rod pin shaft (9).
3. the double interim rope self-balancing push mode suspension bridge sling replacing underpinning devices of straddle-type according to claim 1,
Be characterized in that: the both ends of the permanent hoist cable (16) are provided with the second connecting fork ear, the second connecting fork ear and the steel
It is fixedly connected between box beam otic placode (15) or permanent cord clip (14) by permanent hoist cable pin shaft (17).
4. the double interim rope self-balancing push mode suspension bridge sling replacing underpinning devices of straddle-type according to claim 1,
Be characterized in that: the interim cord clip (1) is the Snap ring structure that set wraps the main push-towing rope (13), and the top of the Snap ring structure is provided with
For accommodating the recess (18) of the interim hoist cable (2), after being placed in the middle part of the interim cord clip (1) in the recess (18)
Both ends extend downward vertically and are fixedly connected with the interim hoist cable shoulder pole girder (3).
5. the double interim rope self-balancing push mode suspension bridge sling replacing underpinning devices of straddle-type according to claim 1 or 4,
It is characterized by: interim hoist cable shoulder pole girder (3) center is provided with for across interim hoist cable tensioning screw rod (7) top
Tensioning rod aperture (21), interim hoist cable shoulder pole girder (3) both ends are provided with the interim rope for fixing the interim hoist cable (2)
Hole (22).
6. the double interim rope self-balancing push mode suspension bridge sling replacing underpinning devices of straddle-type according to claim 1,
Be characterized in that: the split beam (23) of two of the permanent cable stretching shoulder pole girder (11) is fixedly connected by c-type set.
7. the double interim rope self-balancing push mode suspension bridge sling replacing underpinning devices of straddle-type according to claim 1,
Be characterized in that: the reaction beam (12) is steel I-beam, is provided with several webs (19) and lateral stiffening on the steel I-beam
Plate (20).
8. the double interim rope self-balancing push mode suspension bridge sling replacing underpinning devices of straddle-type according to claim 1,
Be characterized in that: the interim cord clip (1) is that thin-walled is light-duty.
9. the double interim rope self-balancing push mode suspension bridge sling replacing underpinning devices of straddle-type according to claim 8,
Be characterized in that: the light-duty thin-walled includes the interim cord clip (1) made of iron plate or copper sheet of the thickness less than 0.5cm.
10. the double interim rope self-balancing push mode suspension bridge sling replacing underpinning devices of straddle-type according to claim 1,
Be characterized in that: the permanent cable stretching shoulder pole girder (11) is located at the anchor cup of the permanent hoist cable (16) to be replaced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822057279.3U CN209584873U (en) | 2018-12-10 | 2018-12-10 | The double interim rope self-balancing push mode suspension bridge sling replacing underpinning devices of straddle-type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN110820524A (en) * | 2019-11-22 | 2020-02-21 | 柳州欧维姆机械股份有限公司 | Connecting structure, fixing structure, new main cable system and construction method for replacing main cable of suspension bridge |
| CN111236038A (en) * | 2020-03-09 | 2020-06-05 | 东南大学 | Novel suspension bridge central authorities detain device |
| CN111719427A (en) * | 2020-04-16 | 2020-09-29 | 德阳天元重工股份有限公司 | Cable clamp structure for double main cables and assembling method thereof |
| CN111996930A (en) * | 2020-09-15 | 2020-11-27 | 兰州交通大学工程检测有限公司 | Novel replacement structure and replacement method for reinforced concrete through arch bridge suspender |
| CN114150891A (en) * | 2021-12-30 | 2022-03-08 | 柳州欧维姆工程有限公司 | Inhaul cable replacing method for space cable net supporting structure |
| CN114934441A (en) * | 2022-05-23 | 2022-08-23 | 保利长大工程有限公司 | Anti-slip temporary sling cable clamp structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110820524A (en) * | 2019-11-22 | 2020-02-21 | 柳州欧维姆机械股份有限公司 | Connecting structure, fixing structure, new main cable system and construction method for replacing main cable of suspension bridge |
| CN111236038A (en) * | 2020-03-09 | 2020-06-05 | 东南大学 | Novel suspension bridge central authorities detain device |
| CN111236038B (en) * | 2020-03-09 | 2021-04-16 | 东南大学 | Novel suspension bridge central authorities detain device |
| CN111719427A (en) * | 2020-04-16 | 2020-09-29 | 德阳天元重工股份有限公司 | Cable clamp structure for double main cables and assembling method thereof |
| CN111719427B (en) * | 2020-04-16 | 2022-07-26 | 德阳天元重工股份有限公司 | Cable clamp structure for double main cables and assembling method thereof |
| CN111996930A (en) * | 2020-09-15 | 2020-11-27 | 兰州交通大学工程检测有限公司 | Novel replacement structure and replacement method for reinforced concrete through arch bridge suspender |
| CN111996930B (en) * | 2020-09-15 | 2022-04-19 | 兰州交通大学工程检测有限公司 | Replacing structure and replacing method for reinforced concrete through arch bridge suspender |
| CN114150891A (en) * | 2021-12-30 | 2022-03-08 | 柳州欧维姆工程有限公司 | Inhaul cable replacing method for space cable net supporting structure |
| CN114934441A (en) * | 2022-05-23 | 2022-08-23 | 保利长大工程有限公司 | Anti-slip temporary sling cable clamp structure |
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