CN105887703A - Replacing device for concrete tied arch bridge flexible suspension rod and using method thereof - Google Patents
Replacing device for concrete tied arch bridge flexible suspension rod and using method thereof Download PDFInfo
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- CN105887703A CN105887703A CN201610391703.0A CN201610391703A CN105887703A CN 105887703 A CN105887703 A CN 105887703A CN 201610391703 A CN201610391703 A CN 201610391703A CN 105887703 A CN105887703 A CN 105887703A
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D22/00—Methods or apparatus for repairing or strengthening existing bridges ; Methods or apparatus for dismantling bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
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Abstract
The invention discloses a replacing device for a concrete tied arch bridge flexible suspension rod. The replacing device comprises a suspension rod replacement tensioning device, a suspension rod replacement executing device and a suspension rod replacement monitoring device; the suspension rod replacement tensioning device comprises a cross-core hydraulic jack, an oil conveying pipeline, an oil hydraulic pump and an oil valve, the cross-core hydraulic jack is connected with the oil valve through the oil conveying pipeline, and the oil valve is communicated with the oil hydraulic pump. The invention further provides a using method of the replacing device for the concrete tied arch bridge flexible suspension rod. The replacing device is suitable for replacing suspension rods different in distance and length; two replacing devices are independently arranged at the two sides of the suspension rod and are easy to operate and high in controllability and achieves dual safety guarantee. The replacement process is low in cost, and occupied bridge floor space is small. Concrete leveling blocks are cast on an arch rib in a on-site mode, replacement operation is convenient, and vertical displacement of the bridge floor and the arch rib at all suspension rods can be controlled accurately.
Description
Technical field
The present invention relates to a kind of Concrete Tied Arch flexible suspension rod more changing device and using method, belong to science of bridge building and reinforce and maintenance technology field.
Background technology
Concrete Tied Arch has the advantages such as rational in infrastructure, stress is clear and definite, vertical rigidity is big.This bridge type not only technical-economic index is advanced, and less demanding to geological conditions, therefore finds broad application.Suspension rod is one of main bearing member of bowstring arch bridge, and bridge floor load is passed to arch rib by it.During long-term use, Concrete Tied Arch suspension rod there will be various disease, specifically includes that one is that sheath is damaged；Two is suspension rod steel wire corrosion；Three is anchorage corrosion.Therefore, when suspension rod reaches its service life it is necessary to change these old suspension rods in time, Hangers failure will otherwise be caused, the great Bridge Accidents that bridge floor caves in.The bridge causing bridge collapse due to Hangers failure has: Yibin xiaonanmen, Wuyi Mountain, fujian residence bridge, Xinjiang Fenghuang Bridge etc..
Replacing to tied arch bridge hanger rod at present mainly has interim pocket to hang method, falsework method, interim suspension rod method.The interim pocket method of hanging is to use steel wire rope to be hung on arch rib by direct for crossbeam pocket, then carries out the replacing of new and old suspension rod.This method is simple to operate, but wayward old boom internal force, Linear Control difficulty when the old suspension rod of removal.Falsework method is to set up falsework under suspension rod to be replaced under suspension centre crossbeam to support crossbeam, then carries out the replacing of new and old suspension rod.This method is simple to operate, less to structure influence, but this method needs to set up support, traffic under impact navigation and bridge under bridge, can not clearly grasp internal force change, relatively be suitable for the replacing of single suspension rod.
Chinese patent literature CN202214680U (application number: 2011203080813) authorizes a kind of device using interim suspension rod method to carry out Change of Hanger Rods of Tied Arch Bridge.This device includes support device and computer data acquiring control system, is embodied as being to be evenly arranged threaded rod around the crossbeam of suspension rod place to be replaced, and threaded rod one end is fixed on crossbeam lower end by shoulder pole girder, and the other end is fixed on Bailey truss beam.As interim suspension rod by loading hydraulic jack and making threaded rod stress, change former suspension rod afterwards, new suspension rod is installed, load.This device is simple to operate when implementing, and however it is necessary that and takies relatively bridge space of planes.
Summary of the invention
The present invention is directed to the technical deficiency that existing replacing device for suspender of tied-arch bridge exists, propose a kind of Concrete Tied Arch flexible suspension rod more changing device and using method, solve that common bowstring arch bridge more changing device poor universality, operable adjustable ability be weak, impact navigation and traffic, take the technical problems such as relatively big, the Linear Control difficulty of bridge floor.
For overcoming above technical deficiency, the present invention will take techniques below scheme: a kind of Concrete Tied Arch flexible suspension rod more changing device, it is characterized in that, device, suspender replacement monitoring device is performed including suspender replacement tensioning equipment, suspender replacement, described suspender replacement tensioning equipment includes feed-through hydraulic jack, pipeline road, oil pressure pump, fuel tap, described feed-through hydraulic jack is connected with described fuel tap by described pipeline road, and described fuel tap is connected with described oil pressure pump；
Described suspender replacement performs device and includes four fining twisted steels, arch rib, floorings, levelling piece of arch rib concrete, described fining twisted steel sequentially passes through levelling piece of described arch rib concrete from the top down, described arch rib, described floorings, levelling piece of described arch rib concrete is arranged on described arch rib, the two ends up and down of described fining twisted steel are respectively arranged with anchorage, lower anchorage, the lower section of described upper anchorage is fixedly installed shoulder pole girder, described upper shoulder pole girder is fixedly installed on the upper surface of levelling piece of described arch rib concrete, shoulder pole girder under being provided above of described lower anchorage, the top of described lower shoulder pole girder is fixedly installed on the lower surface of described floorings；
Described suspender replacement monitoring device includes that punching load transducer, wire, data instrument, computer, some groups of total powerstation targets, total powerstations, described punching load transducer, described data instrument, described computer are sequentially connected by described wire and connect；
Described punching load transducer is fixedly installed on the bottom of described upper anchorage, and described feed-through hydraulic jack is fixedly installed on the top of described upper shoulder pole girder.
Preferably, the bottom of punching load transducer is fixedly installed on feed-through hydraulic jack.
Preferably, being additionally provided with billet between feed-through hydraulic jack and upper shoulder pole girder, the upper surface of upper shoulder pole girder is fixing with upper billet to be connected；Being additionally provided with lower billet between lower shoulder pole girder and lower anchorage, the lower surface of lower shoulder pole girder is fixing with lower billet to be connected.
Preferably, upper shoulder pole girder, lower shoulder pole girder are formed back to the channel-section steel arranged by two.
Preferably, often group total powerstation target includes the total powerstation target being fixedly installed on billet, the total powerstation target being fixedly installed on floorings.
Preferably, upper shoulder pole girder, lower shoulder pole girder are level with the surface of levelling piece of arch rib concrete.
Preferably, the axis of upper anchorage, punching load transducer, feed-through hydraulic jack, the central axis of lower anchorage and fining twisted steel is on a vertical line.
Preferably, a diameter of Φ 32mm of fining twisted steel.
The present invention also proposes the using method of a kind of Concrete Tied Arch flexible suspension rod more changing device, it is characterised in that specifically include following steps:
Step SS1 installs suspender replacement device；According to design drawing, hole at floorings correspondence position, make fining twisted steel from drill center through floorings；The surface of the arch rib corresponding to levelling piece of position of arch rib concrete carries out dabbing process, then bar planting, and HRB335 level reinforcing bar is selected in bar planting, and the bar planting degree of depth is 10cm, afterwards assembling reinforcement net, finally carries out concreting；After concrete reaches 7 day age, fining twisted steel is sequentially passed through from top to bottom upper anchorage, punching load transducer, feed-through hydraulic jack, upper billet, by the upper shoulder pole girder of 2 channel-section steel Two bors d's oeuveres, floorings, lower shoulder pole girder, lower billet and lower anchorage；
Step SS2 removes old suspension rod；Open oil pressure pump, make feed-through hydraulic jack stand punching load transducer, upper anchorage, make fining twisted steel stress；Internal force size by computer Real Time Observation punching load transducer, use total powerstation and total powerstation target to measure the deformation of arch rib and floorings in real time simultaneously, when power and displacement size are consistent with calculating, the internal force of suspension rod to be replaced is offloaded to zero, now removes old suspension rod；Feed-through hydraulic jack applies active force load pipeline upwards: feed-through hydraulic jack → punching load transducer → upper anchorage → fining twisted steel → lower anchorage → lower billet → lower shoulder pole girder → floorings；The load pipeline that feed-through hydraulic jack applies active force downward is: feed-through hydraulic jack → upper billet → upper levelling piece → arch rib of shoulder pole girder → arch rib concrete；
Step SS3 installs new suspension rod, loads；After old suspension rod is removed, utilize lifting appliance that new suspension rod is loaded boom hole, install new suspension rod, package the outer pillar of supporting suspension rod simultaneously, tighten anchorage on new suspension rod, lower anchorage；The grading tension mode determined according to calculating, oil pressure pump at the uniform velocity emptying, progressively unload the active force of feed-through hydraulic jack, unloading fining twisted steel, in the process, internal force size by computer Real Time Observation punching load transducer, use total powerstation and total powerstation target to measure the deformation of arch rib and floorings in real time simultaneously, load force path is with step SS2, until fining twisted steel whole suspension rod power is transferred to new suspension rod, after boom internal force all shifts, by new suspension rod ultra stretching 5%, after holding lotus 2 minutes, anchor new suspension rod.
The beneficial effect that the present invention is reached: (1) present invention adapts to different spacing, the replacing of different length suspension rod；(2) two overlap more changing device each independent, be arranged in the both sides of suspension rod, simple to operate, controllability is strong, dual safety guarantee；(3) the bridge floor space shared by the low cost of Renewal process, Renewal process is little；(4) levelling piece of cast-in-place concrete at arch rib, it is simple to change operation, and bridge floor vertical displacement at each suspension rod caused during changing suspension rod, arch rib vertical displacement can accurately be controlled.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of Concrete Tied Arch flexible suspension rod more changing device of the present invention.
Fig. 2 is the A-A sectional view of Fig. 1.
Fig. 3 is the B-B sectional view of Fig. 2.
The implication of labelling in figure: 1-fining twisted steel, the upper anchorage of 2-, 3-punching load transducer, 4-wire, 5-data instrument, 6-computer, 7-feed-through hydraulic jack, 8-pipeline road, 9-oil pressure pump, 10-total powerstation target, the upper billet of 11-, the upper shoulder pole girder of 12-, levelling piece of 13-arch rib concrete, 14-arch rib, 15-total powerstation, 16-floorings, shoulder pole girder under 17-, billet under 18-, anchorage under 19-, 20-fuel tap.
Detailed description of the invention
The invention will be further described below in conjunction with the accompanying drawings.Following example are only used for clearly illustrating technical scheme, and can not limit the scope of the invention with this.
Fig. 1 is the structural representation of a kind of Concrete Tied Arch flexible suspension rod more changing device of the present invention, and Fig. 2 is the A-A sectional view of Fig. 1, and Fig. 3 is the B-B sectional view of Fig. 2.The present invention proposes a kind of Concrete Tied Arch flexible suspension rod more changing device, device, suspender replacement monitoring device is performed including suspender replacement tensioning equipment, suspender replacement, suspender replacement tensioning equipment includes feed-through hydraulic jack 7, pipeline road 8, oil pressure pump 9, fuel tap 20, feed-through hydraulic jack 7 is connected with fuel tap 20 by pipeline road 8, and fuel tap 20 is connected with oil pressure pump 9；Suspender replacement performs device and includes four fining twisted steels 1, arch rib 14, floorings 16, arch rib concrete levelling piece 13, fining twisted steel 1 sequentially passes through arch rib concrete levelling piece 13 from the top down, arch rib 14, floorings 16, arch rib concrete is arranged at for levelling piece 13 on arch rib 14, the two ends up and down of fining twisted steel 1 are respectively arranged with anchorage 2, lower anchorage 19, the lower section of upper anchorage 2 is fixedly installed shoulder pole girder 12, upper shoulder pole girder 12 is fixedly installed on the upper surface of arch rib concrete levelling piece 13, shoulder pole girder 17 under being provided above of lower anchorage 19, the top of lower shoulder pole girder 17 is fixedly installed on the lower surface of floorings 16；Suspender replacement monitoring device includes that punching load transducer 3, wire 4, data instrument 5, computer 6, some groups of total powerstation targets 10, total powerstations 15, punching load transducer 3, data instrument 5, computer 6 are sequentially connected by wire 4 and connect；Punching load transducer 3 is fixedly installed on the bottom of anchorage 2, and feed-through hydraulic jack 7 is fixedly installed on the top of shoulder pole girder 12.
As a kind of preferred embodiment, the bottom of punching load transducer 3 is fixedly installed on feed-through hydraulic jack 7.
As a kind of preferred embodiment, being additionally provided with billet 11 between feed-through hydraulic jack 7 and upper shoulder pole girder 12, the upper surface of upper shoulder pole girder 12 is fixing with upper billet 11 to be connected；Being additionally provided with lower billet 18 between lower shoulder pole girder 17 and lower anchorage 19, the lower surface of lower shoulder pole girder 17 is fixing with lower billet 18 to be connected.
As a kind of preferred embodiment, upper shoulder pole girder 12, lower shoulder pole girder 17 are formed back to the channel-section steel arranged by two.
As a kind of preferred embodiment, often group total powerstation target 10 includes the total powerstation target 10 being fixedly installed on billet 11, the total powerstation target 10 being fixedly installed on floorings 16.
As a kind of preferred embodiment, the surface that upper shoulder pole girder 12, lower shoulder pole girder 17 and arch rib concrete are levelling piece 13 is level.
As a kind of preferred embodiment, the axis of upper anchorage 2, punching load transducer 3, feed-through hydraulic jack 7, the central axis of lower anchorage 19 and fining twisted steel 1 is on a vertical line.
As a kind of preferred embodiment, a diameter of Φ 32mm of fining twisted steel 1.
The present invention also proposes the using method of a kind of Concrete Tied Arch flexible suspension rod more changing device, specifically includes following steps:
Step SS1 installs suspender replacement device；According to design drawing, hole at floorings 16 correspondence position, make fining twisted steel 1 from drill center through floorings 16；The surface of the arch rib 14 corresponding to levelling piece of 13 positions of arch rib concrete carries out dabbing process, then bar planting, and HRB335 level reinforcing bar is selected in bar planting, and the bar planting degree of depth is 10cm, afterwards assembling reinforcement net, finally carries out concreting；After concrete reaches 7 day age, fining twisted steel 1 is sequentially passed through from top to bottom upper anchorage 2, punching load transducer 3, feed-through hydraulic jack 7, upper billet 11, by the upper shoulder pole girder 12 of 2 channel-section steel Two bors d's oeuveres, floorings 16, lower shoulder pole girder 17, lower billet 18 and lower anchorage 19；
Step SS2 removes old suspension rod；Open oil pressure pump 9, make feed-through hydraulic jack 7 jack-up punching load transducer 3, upper anchorage 2, make fining twisted steel 1 stress；Internal force size by computer 6 Real Time Observation punching load transducer 3, use total powerstation 15 and total powerstation target 10 to measure arch rib 14 and the deformation of floorings 16 in real time simultaneously, when power and displacement size are consistent with calculating, the internal force of suspension rod to be replaced is offloaded to zero, now removes old suspension rod；Feed-through hydraulic jack 7 applies active force load pipeline upwards: feed-through hydraulic jack 7 → punching load transducer 3 → upper anchorage 2 → fining twisted steel 1 → lower anchorage 19 → lower billet 18 → lower shoulder pole girder 17 → floorings 16；The load pipeline that feed-through hydraulic jack 7 applies active force downward is: feed-through hydraulic jack 7 → upper billet 11 → upper levelling piece of 13 → arch rib 14 of shoulder pole girder 12 → arch rib concrete；
Step SS3 installs new suspension rod, loads；After old suspension rod is removed, utilize lifting appliance that new suspension rod is loaded boom hole, install new suspension rod, package the outer pillar of supporting suspension rod simultaneously, tighten anchorage 2 on new suspension rod, lower anchorage 19；The grading tension mode determined according to calculating, oil pressure pump 9 at the uniform velocity emptying, progressively unload the active force of feed-through hydraulic jack 7, unloading fining twisted steel 1, in the process, internal force size by computer 6 Real Time Observation punching load transducer 3, use total powerstation 15 and total powerstation target 10 to measure the deformation of arch rib and floorings in real time simultaneously, load force path is with step SS2, until the whole suspension rod power of fining twisted steel 1 is transferred to new suspension rod, after boom internal force all shifts, by new suspension rod ultra stretching 5%, after holding lotus 2 minutes, anchor new suspension rod.
Above-mentioned feed-through hydraulic jack 7 upwards acts on the process of jacking and unloading downwards all by the stress of suspender replacement monitoring device monitoring fining twisted steel 1, suspender force after measuring the Suo Li of suspension rod to be replaced simultaneously and changing, uses total powerstation 15 and total powerstation target 10 to monitor arch rib 14 and the deformation of floorings 16.
The above is only the preferred embodiment of the present invention; it should be pointed out that, for those skilled in the art, on the premise of without departing from the technology of the present invention principle; can also make some improvement and deformation, these improve and deformation also should be regarded as protection scope of the present invention.
Claims (9)
1. a Concrete Tied Arch flexible suspension rod more changing device, it is characterized in that, device, suspender replacement monitoring device is performed including suspender replacement tensioning equipment, suspender replacement, described suspender replacement tensioning equipment includes feed-through hydraulic jack (7), pipeline road (8), oil pressure pump (9), fuel tap (20), described feed-through hydraulic jack (7) is connected with described fuel tap (20) by described pipeline road (8), and described fuel tap (20) is connected with described oil pressure pump (9)；
nullDescribed suspender replacement performs device and includes four fining twisted steels (1)、Arch rib (14)、Floorings (16)、Levelling piece of arch rib concrete (13)，Described fining twisted steel (1) sequentially passes through levelling piece of described arch rib concrete (13) from the top down、Described arch rib (14)、Described floorings (16)，Levelling piece of described arch rib concrete (13) is arranged on described arch rib (14)，The two ends up and down of described fining twisted steel (1) are respectively arranged with anchorage (2)、Lower anchorage (19)，The lower section of described upper anchorage (2) is fixedly installed shoulder pole girder (12)，Described upper shoulder pole girder (12) is fixedly installed on the upper surface of described arch rib concrete levelling piece (13)，Shoulder pole girder (17) under being provided above of described lower anchorage (19)，The top of described lower shoulder pole girder (17) is fixedly installed on the lower surface of described floorings (16)；
Described suspender replacement monitoring device includes that punching load transducer (3), wire (4), data instrument (5), computer (6), some groups of total powerstation targets (10), total powerstations (15), described punching load transducer (3), described data instrument (5), described computer (6) are sequentially connected by described wire (4) and connect；
Described punching load transducer (3) is fixedly installed on the bottom of described upper anchorage (2), and described feed-through hydraulic jack (7) is fixedly installed on the top of described upper shoulder pole girder (12).
A kind of Concrete Tied Arch flexible suspension rod more changing device the most according to claim 1, it is characterised in that the bottom of described punching load transducer (3) is fixedly installed on described feed-through hydraulic jack (7).
A kind of Concrete Tied Arch flexible suspension rod more changing device the most according to claim 1 and 2, it is characterized in that, being additionally provided with billet (11) between described feed-through hydraulic jack (7) and described upper shoulder pole girder (12), the upper surface of described upper shoulder pole girder (12) is fixing with described upper billet (11) to be connected；Being additionally provided with lower billet (18) between described lower shoulder pole girder (17) and described lower anchorage (19), the lower surface of described lower shoulder pole girder (17) is fixing with described lower billet (18) to be connected.
4. according to the arbitrary described a kind of Concrete Tied Arch flexible suspension rod more changing device of claim 1-3, it is characterised in that described upper shoulder pole girder (12), described lower shoulder pole girder (17) are formed back to the channel-section steel arranged by two.
A kind of Concrete Tied Arch flexible suspension rod more changing device the most according to claim 3, it is characterized in that, often organize described total powerstation target (10) and include the total powerstation target (10) being fixedly installed on described upper billet (11), the total powerstation target (10) being fixedly installed on described floorings (16).
6. according to the arbitrary described a kind of Concrete Tied Arch flexible suspension rod more changing device of claim 1-5, it is characterised in that described upper shoulder pole girder (12), described lower shoulder pole girder (17) are level with the surface of described arch rib concrete levelling piece (13).
A kind of Concrete Tied Arch flexible suspension rod more changing device the most according to claim 1, it is characterized in that, the axis of described upper anchorage (2), described punching load transducer (3), described feed-through hydraulic jack (7), the central axis of described lower anchorage (19) and described fining twisted steel (1) is on a vertical line.
8. according to the arbitrary described a kind of Concrete Tied Arch flexible suspension rod more changing device of claim 1-7, it is characterised in that a diameter of Φ 32mm of described fining twisted steel (1).
9. the using method used according to the arbitrary described Concrete Tied Arch flexible suspension rod more changing device of claim 1-8, it is characterised in that specifically include following steps:
Step SS1 installs suspender replacement device；According to design drawing, hole at floorings (16) correspondence position, make fining twisted steel (1) from drill center through floorings (16)；The surface of the arch rib (14) corresponding to levelling piece of (13) position of arch rib concrete carries out dabbing process, then bar planting, and HRB335 level reinforcing bar is selected in bar planting, and the bar planting degree of depth is 10cm, afterwards assembling reinforcement net, finally carries out concreting；After concrete reaches 7 day age, fining twisted steel (1) is sequentially passed through from top to bottom upper anchorage (2), punching load transducer (3), feed-through hydraulic jack (7), upper billet (11), by the upper shoulder pole girder (12) of 2 channel-section steel Two bors d's oeuveres, floorings (16), lower shoulder pole girder (17), lower billet (18) and lower anchorage (19)；
Step SS2 removes old suspension rod；Open oil pressure pump (9), make feed-through hydraulic jack (7) jack-up punching load transducer (3), upper anchorage (2), make fining twisted steel (1) stress；Internal force size by computer (6) Real Time Observation punching load transducer (3), use total powerstation (15) and total powerstation target (10) to measure arch rib (14) and the deformation of floorings (16) in real time simultaneously, when power and displacement size are consistent with calculating, the internal force of suspension rod to be replaced is offloaded to zero, now removes old suspension rod；Feed-through hydraulic jack (7) applies active force load pipeline upwards: feed-through hydraulic jack (7) → punching load transducer (3) → upper anchorage (2) → fining twisted steel (1) → lower anchorage (19) → lower billet (18) → lower shoulder pole girder (17) → floorings (16)；The load pipeline that feed-through hydraulic jack (7) applies active force downward is: feed-through hydraulic jack (7) → upper billet (11) → upper shoulder pole girder (12) → levelling piece of arch rib concrete (13) → arch rib (14)；
Step SS3 installs new suspension rod, loads；After old suspension rod is removed, utilize lifting appliance that new suspension rod is loaded boom hole, install new suspension rod, package the outer pillar of supporting suspension rod simultaneously, tighten anchorage (2) on new suspension rod, lower anchorage (19)；The grading tension mode determined according to calculating, oil pressure pump (9) at the uniform velocity emptying, the progressively active force of unloading feed-through hydraulic jack (7), unloading fining twisted steel (1), in the process, internal force size by computer (6) Real Time Observation punching load transducer (3), use total powerstation (15) and total powerstation target (10) to measure the deformation of arch rib and floorings in real time simultaneously, load force path is with described step SS2, until fining twisted steel (1) all suspension rod power is transferred to new suspension rod, after boom internal force all shifts, by new suspension rod ultra stretching 5%, new suspension rod is anchored after holding lotus 2 minutes.
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| CN201610391703.0A CN105887703A (en) | 2016-06-06 | 2016-06-06 | Replacing device for concrete tied arch bridge flexible suspension rod and using method thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106498861A (en) * | 2016-12-12 | 2017-03-15 | 上海浦东新区公路建设发展有限公司 | Intelligent arch bridge suspender changes system |
| CN106758854A (en) * | 2017-03-01 | 2017-05-31 | 广西路桥工程集团有限公司 | Intelligent control system and its regulation and control method that a kind of arch bridge sets up |
| CN106758882A (en) * | 2017-02-16 | 2017-05-31 | 柳州欧维姆工程有限公司 | For the hood type automatic leveling anchor and its method for suspender replacement of CFST Arch Bridge suspender replacement |
| CN110593108A (en) * | 2019-09-25 | 2019-12-20 | 中国五冶集团有限公司 | Prefabricated construction platform and construction method for hollow arch bridge hanging beam support |
| CN110593109A (en) * | 2019-09-25 | 2019-12-20 | 中国五冶集团有限公司 | Cast-in-place construction platform and construction method for hollow arch bridge hanging beam support |
| CN112525406A (en) * | 2020-11-27 | 2021-03-19 | 中国建筑第八工程局有限公司 | Method and system for monitoring cable force of suspender |
| CN113005927A (en) * | 2021-04-06 | 2021-06-22 | 厦门合诚工程技术有限公司 | Cable force conversion device for replacing suspender |
| CN113152313A (en) * | 2021-04-19 | 2021-07-23 | 南京润华建设集团有限公司 | Suspender replacing structure of tied arch bridge and construction method thereof |
| CN117907196A (en) * | 2024-03-20 | 2024-04-19 | 四川省公路规划勘察设计研究院有限公司 | Detection system for reinforcing masonry arch bridge |
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Application publication date: 20160824 |