CN113668401A - Hoisting process based on installation and transportation platform on long-span bridge pier - Google Patents
Hoisting process based on installation and transportation platform on long-span bridge pier Download PDFInfo
- Publication number
- CN113668401A CN113668401A CN202110995794.XA CN202110995794A CN113668401A CN 113668401 A CN113668401 A CN 113668401A CN 202110995794 A CN202110995794 A CN 202110995794A CN 113668401 A CN113668401 A CN 113668401A
- Authority
- CN
- China
- Prior art keywords
- transportation platform
- hoisting
- platform
- crane
- bridge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a hoisting process for installing a transportation platform on a long-span bridge pier, which belongs to the field of bridge engineering and comprises the following steps: site cleaning and leveling: the debris of clearance bridge floor avoid producing the barrier, and bracket anchor plate is checked and accepted: the acceptance criteria are as follows: i, the horizontal distance from the anchoring end of the transition pier abutment bracket and the anchor plate to the outer side of the anti-collision wall is 4.5M, II, the chemical anchor bolts of the bracket and the anchor plate adopt 8.8-grade M24 anchor bolts, the anchor plate is 20mm thick Q235B steel, III, the bracket anchor plate completely wraps the top of the concrete anti-collision wall, IV, the anchor bolts of the bracket and the anchor plate are arranged in 4 rows and 2 columns, the distance between the anchor bolts is 100mm, and the anchor bolts can be properly avoided when drilling.
Description
Technical Field
The invention relates to the field of bridge engineering, in particular to a hoisting process for installing a transportation platform on a long-span bridge pier.
Background
The hoisting refers to the general term of the installation and the positioning of equipment by a crane or a hoisting mechanism, and in the process of maintenance or repair, equipment, workpieces, appliances and materials are hoisted by various hoisting tools to change the positions of the equipment, the workpieces, the appliances and the materials, and the transportation platform is installed on the long-span bridge abutment and needs to be hoisted by the crane.
Through retrieval, chinese patent No. CN201410713339.6 discloses a no-support hoisting process for large-span steel pipe arch bridge, which solves some hoisting problems, but its hoisting process is applied to large-span bridge abutment to cause unstable hoisting, so that the transportation platform is easy to collide with the bridge floor, which not only causes economic loss, but also easily causes the transportation platform to drop, which brings potential safety hazard, and the hoisting operation space of general bridge abutment is small, the blind areas are many, which is not beneficial to the accurate positioning of the transportation platform, and brings process defects.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a hoisting process for installing a transportation platform on a long-span bridge pier.
In order to achieve the purpose, the invention adopts the following technical scheme:
a hoisting process for installing a transportation platform on a long-span bridge pier comprises the following steps:
(1) site cleaning and leveling: sundries on the bridge floor are cleaned, and obstacles are avoided;
(2) checking and accepting the bracket anchor plate: the acceptance criteria are as follows: i, the horizontal distance from the anchoring ends of the transition pier abutment corbels and the anchor plates to the outer side of the anti-collision wall is 4.5M, II, the chemical anchor bolts of the corbels and the anchor plates adopt 8.8-grade M24 anchor bolts, the anchor plates are made of Q235B steel with the thickness of 20mm, III and the corbel anchor plates completely wrap the top of the concrete anti-collision wall, IV, the corbels and the anchor bolts of the anchor plates are arranged in 4 rows and 2 columns, the distance between the anchor bolts and the corbel anchor plates is 100mm, and main ribs can be properly avoided when drilling;
(3) the crane is in place: commanding the crane into a crane parking position, and lowering the supporting device;
(4) checking hoisting machinery and a hoisting tool: checking whether each index of the crane is normal, checking whether the steel wire rope buckle is screwed up, and checking whether the installation of the safe steel wire rope buckle meets the requirements;
(5) checking a hoisting point of the transportation platform: checking whether 2 permanent lifting points arranged at a position 4m away from the anchoring end of a truss of the transportation platform are stable or not, and checking whether 2 permanent lifting points arranged at a position 6m away from the anchoring end of the truss are stable or not;
(6) the test hoisting of the transportation platform: 2 crane hoisting points at a position 4.7m away from the anchoring end of the truss and 2 crane hoisting points at a position 6.7m away from the anchoring end of the truss are connected with the cranes through steel wire ropes, so that the transportation platform is hoisted to be 100mm away from the ground through the cranes, a counterweight is arranged on the truss of the transportation platform, the truss is kept horizontal due to the weight of the counterweight, and meanwhile, common workers can drag the transportation platform with dragging ropes to prevent the transportation platform from swinging on two sides until the truss is kept vertical to the bridge deck along the bridge direction;
(7) the transportation platform is in place: after the test hoisting is correct, the transportation platform is hoisted through a crane, the swing degree of the transportation platform is large during hoisting, two ordinary workers need to control the transportation platform by ropes at two sides of the other end to keep a certain direction to prevent the transportation platform from touching bridge floor facilities, and a signal person on the bridge is commanded by a signal person under the bridge and commands a crane driver by the signal person on the bridge until the transportation platform is close to the bridge under the bridge, so that the hoisting position of the transportation platform is accurately controlled, and the transportation platform is ready to be in place;
(8) aligning and welding a transport platform: after the transportation platform is prepared, two chain blocks arranged at the support platform are used for assisting in hoisting, so that 2 permanent hoisting points arranged on the right outer side of the truss are connected with wind-resistant hoisting points arranged on the concrete beam anti-collision wall, 2 permanent hoisting points designed on the left end of the truss close to the inner side are connected with hoisting points designed on the concrete beam anti-collision wall, and then welding and anchoring are carried out;
(9) and (4) rechecking a transport platform: checking whether the transportation platform is welded stably;
(10) dismantling the hoisting lockset: after the transport platform is rechecked to be correct, the steel wire rope and the load on the transport platform are dismantled;
(11) the crane moves back: the supporting device is retracted by the crane and is driven away from the crane parking position.
Further, the specific requirement for checking whether the steel wire rope buckle is screwed down in the step (4) is as follows: and (3) tightening the U-shaped bolt of the steel wire rope buckle until the steel wire rope is flattened 1/3, wherein the steel wire rope is deformed after being stressed, and the steel wire rope buckle needs to be tightened for the second time after being stressed.
Further, the installation of the safety steel wire rope buckle in the step (4) specifically comprises: and mounting the safety steel wire rope buckle at a position which is about 500mm away from the last steel wire rope buckle, and clamping the rope end with the main rope after the rope end is released to form a section of safety bend.
Further, the transportation platform in the step (6) comprises a truss and a top plate, the weight is installed on four edges of the truss, the weight of the weight is 0.85 ton, and the weight comprises a large steel plate with the thickness of 2 centimeters and a sand bag.
Further, the mounting process of the support platform in the step (8) is as follows: the lower support platform is hung on one side of the transition pier, then the lower support platform is transported to the other side through the original maintenance platform in the middle of the transition pier, and a high-foot trolley is adopted for transportation in the process.
Further, the crane in the step (3) adopts a 25T crane.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the rope is used for controlling the transportation platform at the other end of the hoisting by two ordinary workers, so that the transportation platform is kept in a certain direction, the bridge deck facilities are prevented from being touched until the transportation platform is close to the underbridge, the purpose of keeping stable hoisting is achieved, the economic loss is avoided, the transportation platform is not easy to fall off, and the safety coefficient is improved.
2. According to the invention, the under-bridge signal operator commands the on-bridge signal operator, the on-bridge signal operator commands the crane driver, so that the crane driver can accurately control the lifting position, and meanwhile, the two chain blocks arranged at the support platform assist in lifting, so that the transportation platform can be aligned and welded and anchored, the purpose of overcoming small lifting operation space and more blind areas is achieved, and the accurate positioning of the transportation platform is facilitated.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
Fig. 1 is a schematic diagram of a hoisting process flow for installing a transportation platform on a long-span bridge abutment.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Example 1:
referring to fig. 1, the present invention provides a technical solution: a hoisting process for installing a transportation platform on a long-span bridge pier comprises the following steps:
site cleaning and leveling: sundries on the bridge floor are cleaned, and obstacles are avoided;
checking and accepting the bracket anchor plate: the acceptance criteria are as follows: i, the horizontal distance that the anchor end of transition mound pier foundation bracket and anchor slab was held to the crashproof wall outside is 4.5M, II, the chemical crab-bolt of bracket and anchor slab adopts 8.8 level M24 crab-bolts, the anchor slab is the thick Q235B steel of 20mm, III, the bracket anchor slab wraps up concrete crashproof wall top completely, IV, the crab-bolt of bracket and anchor slab is 4 lines 2 and sets up, and its interval is 100mm, run into the owner muscle during drilling and can suitably avoid.
The crane is in place: commanding the crane into a crane parking position, and lowering the supporting device;
specifically, the crane adopts a 25T crane;
checking hoisting machinery and a hoisting tool: checking whether each index of the crane is normal, checking whether the steel wire rope buckle is screwed up, and checking whether the installation of the safe steel wire rope buckle meets the requirements;
specifically, the specific requirement for checking whether the steel wire rope buckle is screwed down is as follows: the U-shaped bolt of the steel wire rope buckle is screwed until the steel wire rope is flattened 1/3, and the steel wire rope buckle needs to be screwed for the second time after the steel wire rope is stressed because the steel wire rope deforms after being stressed; the installation of safe wire rope buckle specifically does: mounting the safety steel wire rope buckle at a position which is about 500mm away from the last steel wire rope buckle, and clamping the rope end with the main rope after the rope end is released to form a section of safety bend;
checking a hoisting point of the transportation platform: checking whether 2 permanent lifting points arranged at a position 4m away from the anchoring end of a truss of the transportation platform are stable or not, and checking whether 2 permanent lifting points arranged at a position 6m away from the anchoring end of the truss are stable or not;
the test hoisting of the transportation platform: 2 crane hoisting points at a position 4.7m away from the anchoring end of the truss and 2 crane hoisting points at a position 6.7m away from the anchoring end of the truss are connected with the cranes through steel wire ropes, so that the transportation platform is hoisted to be 100mm away from the ground through the cranes, a counterweight is arranged on the truss of the transportation platform, the truss is kept horizontal due to the weight of the counterweight, and meanwhile, common workers can drag the transportation platform with dragging ropes to prevent the transportation platform from swinging on two sides until the truss is kept vertical to the bridge deck along the bridge direction;
the transportation platform is in place: after the test hoisting is correct, the transportation platform is hoisted through a crane, the swing degree of the transportation platform is large during hoisting, two ordinary workers need to control the transportation platform by ropes at two sides of the other end to keep a certain direction to prevent the transportation platform from touching bridge floor facilities, and a signal person on the bridge is commanded by a signal person under the bridge and commands a crane driver by the signal person on the bridge until the transportation platform is close to the bridge under the bridge, so that the hoisting position of the transportation platform is accurately controlled, and the transportation platform is ready to be in place;
aligning and welding a transport platform: after the transportation platform is prepared, two chain blocks arranged at the support platform are used for assisting in hoisting, so that 2 permanent hoisting points arranged on the right outer side of the truss are connected with wind-resistant hoisting points arranged on the concrete beam anti-collision wall, 2 permanent hoisting points designed on the left end of the truss close to the inner side are connected with hoisting points designed on the concrete beam anti-collision wall, and then welding and anchoring are carried out;
and (4) rechecking a transport platform: checking whether the transportation platform is welded stably;
dismantling the hoisting lockset: after the transport platform is rechecked to be correct, the steel wire rope and the load on the transport platform are dismantled;
the crane moves back: the supporting device is retracted by the crane and is driven away from the crane parking position.
Specifically, in the process of lifting the transportation platform, the ground near the bridge abutment is cleaned and leveled, so that the crane can be stably parked at the crane parking position, then the lifting points of the bracket anchor plate, the lifting appliance and the transportation platform are checked, the normality of the bracket anchor plate, the lifting appliance and the lifting points of the transportation platform is ensured, the hidden danger of the lifting process of the transportation platform is reduced, the normal operation of the lifting process of the transportation platform is preliminarily ensured, after the processes are completely finished, the transportation platform is lifted in an attempt by the crane, whether the hidden danger exists in the process of lifting in the attempt is observed, the normal operation of the lifting is further ensured, in the process of formally lifting the transportation platform, two common workers control the transportation platform by using a rope at the other end of the lifting, the transportation platform is kept in a certain direction, bridge deck facilities are prevented from being touched until the transportation platform is close to the under the bridge, the purpose of keeping the lifting stability is achieved, the economic loss is avoided, and the transportation platform is not easy to fall, the safety factor is improved.
Example 2:
referring to fig. 1, the present invention provides a technical solution: a hoisting process for installing a transportation platform on a long-span bridge pier is disclosed, which specifically introduces the installation operation of a support platform except for the same steps as the above embodiments;
the mounting process of the support platform comprises the following steps: a support platform is hung on one side of the transition pier, and then the transition pier is transported to the other side through an original maintenance platform in the middle of the transition pier, and a high-foot trolley is adopted for transportation in the process;
in the process of aligning and welding the transportation platform, an under-bridge signal operator commands an on-bridge signal operator, and an on-bridge signal operator commands a crane driver, so that the crane driver can accurately control the lifting position, and meanwhile, the transportation platform can be aligned, welded and anchored by the aid of two chain blocks arranged at the support platform, so that the purpose of overcoming small blind areas in the lifting operation space is achieved, and the transportation platform is beneficial to accurate positioning;
specifically, the transportation platform comprises a truss and a top plate, the weight of the weight is 0.85 ton, and the weight comprises a large steel plate with the thickness of 2 centimeters and a sand bag.
The working principle and the using process of the invention are as follows: cleaning up sundries on the bridge floor, avoiding generating barriers, then checking the lifting points of the bracket anchor plate, the lifting appliance and the transportation platform, ensuring the normal lifting points of the bracket anchor plate, the lifting appliance and the transportation platform, reducing the hidden danger of the lifting process of the transportation platform, primarily ensuring the normal operation of the lifting, after the processes are all completed, trying to lift the transportation platform by a crane, observing whether the hidden danger exists in the trying to lift process, further ensuring the normal operation of the lifting, in the formal lifting process of the transportation platform, controlling the transportation platform by a rope at the other end of the lifting by two common workers, keeping the transportation platform in a certain direction, preventing the transportation platform from touching the bridge floor facilities until the transportation platform is close to the under bridge, achieving the purpose of keeping the stable lifting, avoiding economic loss, not easily making the transportation platform fall, improving the safety factor, commanding a signaler on the bridge by the under bridge, commanding a signaler on the bridge to command a crane, make the crane driver can the accurate control position of lifting by crane, simultaneously through the supplementary hoist and mount of two chain block that support platform department set up for transport platform can the alignment and weld the anchor, reaches the purpose of overcoming the little blind area in hoist and mount operation space and many, does benefit to transport platform's accurate location, and the transport platform is reinspected at last and demolishs the hoist and mount tool to lock, accomplishes the operation.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (6)
1. A hoisting process for installing a transportation platform on a long-span bridge pier is characterized by comprising the following steps:
(1) site cleaning and leveling: sundries on the bridge floor are cleaned, and obstacles are avoided;
(2) checking and accepting the bracket anchor plate: the acceptance criteria are as follows: i, the horizontal distance that the anchor end of transition mound pier foundation bracket and anchor slab was held to the crashproof wall outside is 4.5M, II, the chemical crab-bolt of bracket and anchor slab adopts 8.8 level M24 crab-bolts, the anchor slab is the thick Q235B steel of 20mm, III, the bracket anchor slab wraps up concrete crashproof wall top completely, IV, the crab-bolt of bracket and anchor slab is 4 lines 2 and sets up, and its interval is 100mm, run into the owner muscle during drilling and can suitably avoid.
(3) The crane is in place: commanding the crane into a crane parking position, and lowering the supporting device;
(4) checking hoisting machinery and a hoisting tool: checking whether each index of the crane is normal, checking whether the steel wire rope buckle is screwed up, and checking whether the installation of the safe steel wire rope buckle meets the requirements;
(5) checking a hoisting point of the transportation platform: checking whether 2 permanent lifting points arranged at a position 4m away from the anchoring end of a truss of the transportation platform are stable or not, and checking whether 2 permanent lifting points arranged at a position 6m away from the anchoring end of the truss are stable or not;
(6) the test hoisting of the transportation platform: 2 crane hoisting points at a position 4.7m away from the anchoring end of the truss and 2 crane hoisting points at a position 6.7m away from the anchoring end of the truss are connected with the cranes through steel wire ropes, so that the transportation platform is hoisted to be 100mm away from the ground through the cranes, a counterweight is arranged on the truss of the transportation platform, the truss is kept horizontal due to the weight of the counterweight, and meanwhile, common workers can drag the transportation platform with dragging ropes to prevent the transportation platform from swinging on two sides until the truss is kept vertical to the bridge deck along the bridge direction;
(7) the transportation platform is in place: after the test hoisting is correct, the transportation platform is hoisted through a crane, the swing degree of the transportation platform is large during hoisting, two ordinary workers need to control the transportation platform by ropes at two sides of the other end to keep a certain direction to prevent the transportation platform from touching bridge floor facilities, and a signal person on the bridge is commanded by a signal person under the bridge and commands a crane driver by the signal person on the bridge until the transportation platform is close to the bridge under the bridge, so that the hoisting position of the transportation platform is accurately controlled, and the transportation platform is ready to be in place;
(8) aligning and welding a transport platform: after the transportation platform is prepared, two chain blocks arranged at the support platform are used for assisting in hoisting, so that 2 permanent hoisting points arranged on the right outer side of the truss are connected with wind-resistant hoisting points arranged on the concrete beam anti-collision wall, 2 permanent hoisting points designed on the left end of the truss close to the inner side are connected with hoisting points designed on the concrete beam anti-collision wall, and then welding and anchoring are carried out;
(9) and (4) rechecking a transport platform: checking whether the transportation platform is welded stably;
(10) dismantling the hoisting lockset: after the transport platform is rechecked to be correct, the steel wire rope and the load on the transport platform are dismantled;
(11) the crane moves back: the supporting device is retracted by the crane and is driven away from the crane parking position.
2. The hoisting process for installing the transportation platform on the long-span bridge pier according to claim 1, wherein the concrete requirements for checking whether the steel wire rope fastener is screwed down in the step (4) are as follows: and (3) tightening the U-shaped bolt of the steel wire rope buckle until the steel wire rope is flattened 1/3, wherein the steel wire rope is deformed after being stressed, and the steel wire rope buckle needs to be tightened for the second time after being stressed.
3. The hoisting process for installing the transportation platform on the long-span bridge pier according to claim 1, wherein the installation of the safety steel wire rope buckle in the step (4) is specifically as follows: and mounting the safety steel wire rope buckle at a position which is about 500mm away from the last steel wire rope buckle, and clamping the rope end with the main rope after the rope end is released to form a section of safety bend.
4. The hoisting process for installing the transportation platform on the long-span bridge pier is characterized in that in the step (6), the transportation platform comprises a truss and a top plate, the heavy objects are installed on four edges of the truss, the weight of the heavy objects is 0.85 ton, and the heavy objects comprise 2 cm thick large steel plates and sand bags.
5. The hoisting process for installing the transportation platform on the long-span bridge pier according to claim 1, wherein the installation process of the support platform in the step (8) comprises the following steps: the lower support platform is hung on one side of the transition pier, then the lower support platform is transported to the other side through the original maintenance platform in the middle of the transition pier, and a high-foot trolley is adopted for transportation in the process.
6. The hoisting process for installing the transportation platform on the large-span bridge pier according to claim 2, wherein the crane in the step (3) is a 25T crane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110995794.XA CN113668401B (en) | 2021-08-27 | 2021-08-27 | Hoisting process based on installation and transportation platform on long-span bridge pier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110995794.XA CN113668401B (en) | 2021-08-27 | 2021-08-27 | Hoisting process based on installation and transportation platform on long-span bridge pier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113668401A true CN113668401A (en) | 2021-11-19 |
| CN113668401B CN113668401B (en) | 2023-01-31 |
Family
ID=78546953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110995794.XA Active CN113668401B (en) | 2021-08-27 | 2021-08-27 | Hoisting process based on installation and transportation platform on long-span bridge pier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113668401B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114457699A (en) * | 2022-03-31 | 2022-05-10 | 江苏润扬大桥发展有限责任公司 | Platform device for transportation equipment of extra-large cable bridge |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015098683A (en) * | 2013-11-18 | 2015-05-28 | 大成建設株式会社 | Temporary frame and construction method for structure |
| CN108411783A (en) * | 2018-03-12 | 2018-08-17 | 中铁建大桥工程局集团第四工程有限公司 | A kind of steel truss girder joint assembling and construction method |
| CN110528390A (en) * | 2019-08-14 | 2019-12-03 | 中铁六局集团太原铁路建设有限公司 | It closes on both wired narrow spaces and sets up T beam construction method |
| CN112095439A (en) * | 2020-09-07 | 2020-12-18 | 中国建筑第八工程局有限公司 | Method for constructing transportation platform between canyon tunnels and structure of transportation platform |
| CN112726409A (en) * | 2020-12-29 | 2021-04-30 | 中铁一局集团有限公司 | Hoisting device for bridge water surface pile tie beam and construction method thereof |
| CN113026563A (en) * | 2021-03-19 | 2021-06-25 | 中铁建大桥工程局集团第一工程有限公司 | Suspension bridge high-low displacement girder trestle girder hoisting facility and construction method thereof |
-
2021
- 2021-08-27 CN CN202110995794.XA patent/CN113668401B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015098683A (en) * | 2013-11-18 | 2015-05-28 | 大成建設株式会社 | Temporary frame and construction method for structure |
| CN108411783A (en) * | 2018-03-12 | 2018-08-17 | 中铁建大桥工程局集团第四工程有限公司 | A kind of steel truss girder joint assembling and construction method |
| CN110528390A (en) * | 2019-08-14 | 2019-12-03 | 中铁六局集团太原铁路建设有限公司 | It closes on both wired narrow spaces and sets up T beam construction method |
| CN112095439A (en) * | 2020-09-07 | 2020-12-18 | 中国建筑第八工程局有限公司 | Method for constructing transportation platform between canyon tunnels and structure of transportation platform |
| CN112726409A (en) * | 2020-12-29 | 2021-04-30 | 中铁一局集团有限公司 | Hoisting device for bridge water surface pile tie beam and construction method thereof |
| CN113026563A (en) * | 2021-03-19 | 2021-06-25 | 中铁建大桥工程局集团第一工程有限公司 | Suspension bridge high-low displacement girder trestle girder hoisting facility and construction method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114457699A (en) * | 2022-03-31 | 2022-05-10 | 江苏润扬大桥发展有限责任公司 | Platform device for transportation equipment of extra-large cable bridge |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113668401B (en) | 2023-01-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104878693B (en) | Lateral girder erection structure for truss double-girder type bridge girder erection machine, construction method of erection structure, and lateral girder erection method based on erection structure | |
| CN202245617U (en) | Elevator well wall assembled by adopting combined type derricks | |
| CN103291076A (en) | Multilayer steel truss fragmented reverse hoisting construction method in arc-shaped frame | |
| CN111395641A (en) | Precast concrete external wallboard and construction method thereof | |
| WO2020098394A1 (en) | Gob-side entry confined concrete supporting construction device and mechanized construction method | |
| CN113668401B (en) | Hoisting process based on installation and transportation platform on long-span bridge pier | |
| CN201908447U (en) | Lift-type horizontal safety net | |
| CN107675792A (en) | Steel construction is encorbelmented gallery structure and construction method | |
| CN107090772B (en) | Construction method of side span cast-in-place beam bracket of extra-large cable-stayed bridge | |
| CN214573768U (en) | Self-climbing sliding formwork pouring system for second-stage concrete pouring of gate slot | |
| CN113738125B (en) | Construction method for lifting limited-space large-span steel structure of station house under line | |
| CN211473320U (en) | Tool type external hanging rack for corridor | |
| JP2001082070A (en) | Suspension type lift device and its installation method | |
| CN210152143U (en) | A connection structure for concrete cladding panel hoist and mount construction | |
| CN111764623A (en) | Lower hanging construction platform module of high-altitude large-cantilever steel roof truss and construction method | |
| CN221073541U (en) | Steel construction roof rack hoisting device | |
| KR20210068283A (en) | Structural Systems and Methods for Floor Structural Work in Elevator Machine Room of Apartment Housing | |
| CN117166813B (en) | Construction method for building curtain wall reconstruction external protection system | |
| CN217323070U (en) | Multifunctional hole digging pile lifting device | |
| CN209536740U (en) | A kind of elevator with support arm | |
| CN220431975U (en) | Super-high adhesion structure of construction elevator | |
| CN215331380U (en) | Rail type suspension platform | |
| CN214733990U (en) | Hoisting device of program-controlled high-pressure diaphragm filter press | |
| CN212269274U (en) | Tower crane supporting system for reconstruction of existing building | |
| CN220724855U (en) | Assembled soilless roadbed panel quick installation auxiliary device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230707 Address after: Room 613, Building 1-1, Xinduhui Plaza, No. 1118, Shuanglong Avenue, Jiangning District, Nanjing, Jiangsu Province, 210000 (Jiangning Development Zone) Patentee after: Jiangsu Jiuxing Construction Engineering Co.,Ltd. Address before: 212003 # 2304, Youth Hui 8, Jingkou District, Zhenjiang, Jiangsu Province Patentee before: Lv Jianxiang |
|
| TR01 | Transfer of patent right |