CN113512942A - Wall-mounted type overhead working method and device suitable for prefabricated bridge - Google Patents
Wall-mounted type overhead working method and device suitable for prefabricated bridge Download PDFInfo
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- CN113512942A CN113512942A CN202110375332.8A CN202110375332A CN113512942A CN 113512942 A CN113512942 A CN 113512942A CN 202110375332 A CN202110375332 A CN 202110375332A CN 113512942 A CN113512942 A CN 113512942A
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- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000001514 detection method Methods 0.000 claims abstract description 19
- 238000009434 installation Methods 0.000 claims abstract description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 14
- 239000010959 steel Substances 0.000 claims description 14
- 239000000725 suspension Substances 0.000 claims description 13
- 239000007788 liquid Substances 0.000 claims description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 239000011521 glass Substances 0.000 claims description 4
- 238000007689 inspection Methods 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 230000003068 static effect Effects 0.000 claims description 3
- 238000009435 building construction Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 10
- 238000003466 welding Methods 0.000 description 3
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
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- 239000002023 wood Substances 0.000 description 1
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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
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling 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
- E01D19/10—Railings; Protectors against smoke or gases, e.g. of locomotives; Maintenance travellers; Fastening of pipes or cables to bridges
- E01D19/106—Movable inspection or maintenance platforms, e.g. travelling scaffolding or vehicles specially designed to provide access to the undersides of bridges
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Abstract
The invention relates to a wall-mounted type overhead working method and device suitable for a prefabricated bridge, belongs to the technical field of building construction, and aims to solve the problem that traffic is influenced due to high price when an overhead working truck is adopted for overhead installation of a traditional bridge to carry out a bridge structure. The hanging basket is fixedly connected with the top of the hanging wing of the cover beam through the connecting hook, the bottom of the hanging basket is attached to the side face of the cover beam through the universal idler wheel, and the connecting hook is connected with the overturn-preventing counter weight in the cover beam of the precast bridge through the inhaul cable. The hanging basket comprises a hanging basket main body, a moving device and a safety device; the moving device comprises a lower inclined rod, a telescopic rod, a supporting fixed rod, a hook roller and an upper transverse rod row wheel, wherein one end of the telescopic rod is welded with a bracket I; one end of the lower inclined rod is fixedly provided with a bracket II, the other end of the lower inclined rod is connected with a universal joint through a bolt, and the lower inclined rod is connected with the telescopic rod through the universal joint; safety device includes level detection meter and tension detection meter, and the level detection meter is settled on well horizontal pole through the support, and tension detection meter welds on the cable.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a wall-mounted type overhead working method and device suitable for a prefabricated bridge.
Background
The traditional bridge overhead operation method has two types:
firstly, the overhead working truck is used for a bridge structure, and the method has the following defects: 1) the equipment purchase or lease cost is high. The purchasing cost of the overhead working truck is hundreds of thousands, which is a large expense. If renting, because of the long time of renting, the renting cost is high; 2) it needs to be applied in advance. The overhead working truck needs to occupy at least one lane, needs to communicate with a traffic department in advance before overhead working, and can carry out operation after applying for passing. 3) Affecting normal traffic operation. In the use process of the high-altitude vehicle, lanes are reduced, and smooth traffic is not facilitated. The probability of a traffic accident becomes significantly higher.
And secondly, wall-mounted overhead operation construction, wherein people stand in a hanging basket fixed on the wall of the bridge to operate, and the method avoids lane occupation and vehicle lease. But the hanging basket needs to be lifted by a crane for moving, and the working efficiency is low. And the size of hanging the basket needs to customize according to the bridge size. A bridge project usually needs various hanging basket size forms and cannot be repeatedly used.
Therefore, a wall-hanging type overhead working method and device suitable for a prefabricated bridge are needed to solve the foregoing problems.
Disclosure of Invention
The invention mainly aims to provide a wall-mounted type overhead working method and device suitable for a prefabricated bridge. According to the method, the upper structure construction of the bridge is carried out in an overhead basket hanging mode, and the method does not need to lease an overhead working truck, so that the construction cost is reduced, and the normal use of a lower lane is not influenced.
In order to solve the technical problems, the technical scheme of the invention is as follows:
a wall-mounted type aerial working device suitable for a prefabricated bridge comprises a hanging basket and a connecting hook, wherein the hanging basket is fixedly connected with the top of a prefabricated bridge cover beam suspension wing through the connecting hook;
the top end of the hanging basket is hung on the connecting hook, the bottom of the hanging basket is attached to the side face of the precast bridge capping beam through a universal roller, the connecting hook is connected with an overturn-preventing counter weight in the precast bridge capping beam through a pull rope, and the side face of the hanging basket is also provided with an escalator; the hanging basket comprises a hanging basket main body, a moving device and a safety device;
the hanging basket main body comprises an upper cross rod, a middle cross rod, a bottom plate, an upper vertical rod, a middle vertical rod and a lower vertical rod which are encircled;
the moving device comprises a lower inclined rod, a telescopic rod, a supporting fixed rod, a hook roller and an upper transverse rod row wheel, wherein one end of the telescopic rod is welded with a bracket I; a bracket II is fixedly arranged at one end of the lower inclined rod, the other end of the lower inclined rod is connected with a universal joint through a bolt, and the lower inclined rod is connected with the telescopic rod through the universal joint;
safety device includes level detection meter and tension detection meter, the level detection meter is settled on well horizontal pole through the support, the tension detection meter welds on the cable.
Furthermore, the upper vertical rod and the middle vertical rod are connected in a matched mode through a bolt and a jack.
Furthermore, the inner side of the suspension wing is also provided with a cushion block, the cushion block is arranged at the joint of the connecting hook and the suspension wing and is fixedly connected with the connecting hook through an iron wire and an expansion screw, and the cushion block is made of battens with the cross section size of 200cm multiplied by 200 cm.
Furthermore, the escalator is formed by erecting steel pipes with the diameter of 50 mm.
Furthermore, the level detector comprises a glass shell filled with conductive liquid, three electrode needles extending out of the bottom of the shell are immersed in the conductive liquid, the bottoms of the electrode needles are connected with a power supply, the left electrode needle and the right electrode needle are connected with the anode of a battery, the middle electrode needle is connected with the cathode of the battery, and the electrode needle head is connected with an LED lamp as a warning lamp.
Furthermore, the tension detection meter is a spring meter, two ends of the tension detection meter are welded on the inhaul cable, and a storage battery or a button battery is arranged on the shell of the tension detection meter to provide a power supply.
The invention also provides a wall-mounted type overhead working method suitable for the prefabricated bridge, which comprises the following steps:
step S1, preparing two 15-ton shackles, two 15-ton steel wire ropes and a 25-ton truck crane, and carrying out safety inspection on a hanging basket hanging point, the steel wire ropes and the shackles and carrying out test hanging;
step S2, adjusting the length of the adjusting vertical rod to a proper height through a plug pin jack mode according to the height of the cover beam, ensuring that the roller of the connecting hook is in a brake static state, slowly moving the hanging basket to the position above a cover beam stop block and an anti-collision wall after the hanging basket is stabilized, aligning the hanging basket to the position, slowly dropping the end close to the cover beam stop block, drawing a universal wheel of the connecting hook into a cover beam guide rail by a constructor on the inner side of the cover beam, and connecting the connecting hook with an anti-overturn counterweight in the cover beam of the precast bridge through a pull cable;
step S3, adjusting the position of a bracket II on the lower inclined rod by selecting bolt hole positions by personnel in the hanging basket, and enabling the angle of the telescopic rod to be vertical to the cover beam by drawing through the supporting fixed rod;
and step S4, adjusting the length through the telescopic rod to ensure that the universal roller is tightly attached to the cover beam, thereby completing the installation of the hanging basket.
Compared with the prior art, the invention has the beneficial technical effects as follows:
the invention provides a wall-mounted type aerial working device suitable for a precast bridge, which comprises a hanging basket and a connecting hook, wherein the hanging basket is fixedly connected with the top of a precast bridge bent cap suspension wing through the connecting hook; the top end of the hanging basket is hung on the connecting hook, the bottom of the hanging basket is attached to the side face of the precast bridge capping beam through a universal roller, the connecting hook is connected with the overturn-preventing counter weight in the precast bridge capping beam through a pull rope, and the side face of the hanging basket is also provided with an escalator; the hanging basket comprises a hanging basket main body, a moving device and a safety device; the hanging basket main body comprises an upper cross rod, a middle cross rod, a bottom plate, an upper vertical rod, a middle vertical rod and a lower vertical rod which are encircled; the moving device comprises a lower inclined rod, a telescopic rod, a supporting fixed rod, a hook roller and an upper transverse rod row wheel, wherein one end of the telescopic rod is welded with a bracket I; one end of the lower inclined rod is fixedly provided with a bracket II, the other end of the lower inclined rod is connected with a universal joint through a bolt, and the lower inclined rod is connected with the telescopic rod through the universal joint; safety device includes level detection meter and tension detection meter, and the level detection meter is settled on well horizontal pole through the support, and tension detection meter welds on the cable. The high-altitude operation vehicle does not need to be leased, the equipment cost is reduced, the main construction area is the side face of the bridge, and the normal use of the lower lane is not influenced. Hang basket can angle regulation, height, adaptable in many sizes bridge bent cap, green hangs basket construction area but quick travel, and the efficiency of construction is higher.
Drawings
Fig. 1 is a schematic structural diagram of a wall-mounted type overhead working method suitable for a prefabricated bridge in an embodiment of the invention.
In the figure:
101-upper cross bar; 102-a central crossbar; 103-a backplane; 104-upper vertical rod; 105-middle upright pole; 106-lower upright stanchion; 107-lower diagonal; 108-a telescopic rod; 109-supporting fixing rods; 110-universal joint; 111-an escalator; 112-bracket one; 113-corbel two; 114-a latch; 115-a jack; 116-a bracket hanging point;
117-arm rest; 118-handrail upright stanchions; 119-a row wheel; 120-a guide rail; 200-connecting a hook; 201-hook roller; 300-a capping beam; 400-universal rollers; 500-anti-toppling counterweight; 600-level detector;
700-a tension detector; 800-stay cable.
Detailed Description
The wall-mounted type overhead working method and device suitable for the prefabricated bridge provided by the invention are further described in detail with reference to the attached drawings and specific embodiments. Advantages and features of the present invention will become apparent from the following description and from the claims. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention. For convenience of description, the directions of "up" and "down" described below are the same as the directions of "up" and "down" in the drawings, but this is not a limitation of the technical solution of the present invention.
In the present invention, the cradle is installed on the suspension wing of the precast bridge bent cap 300, and the lower part thereof is attached to the side of the bent cap 300 through the universal roller 400. The upper hanger rollers 201 are mounted on the lid rail 120 and the upper rail row wheels 119 are mounted on the lid 300. In order to ensure the stable installation, 200-200 battens are adopted as cushion blocks on the inner sides of the connecting hooks 200 and the suspension wings and are fixed by iron wires and expansion screws. And, the connection hook 200 is provided with a hole of 10mm, and is connected with the overturn preventing weight 500 in the bent cap 300 through a stay cable 800. The structural components of the wall-hanging type aerial working device suitable for the prefabricated bridge of the invention are described in detail with reference to fig. 1.
Referring to fig. 1, a wall-hanging type aerial working device suitable for a precast bridge comprises a hanging basket and a connecting hook 200, wherein the hanging basket is fixedly connected with the top of a suspension wing of a precast bridge bent cap 300 through the connecting hook 200; the top end of the hanging basket is hung on the connecting hook 200, the bottom of the hanging basket is attached to the side surface of the precast bridge capping beam 300 through the universal idler wheel 400, the connecting hook 200 is connected with the overturn-preventing counterweight 500 in the precast bridge capping beam 300 through the inhaul cable 800, and the side surface of the hanging basket is also provided with the escalator 111; the hanging basket comprises a hanging basket main body, a moving device and a safety device; the hanging basket main body is formed by enclosing an upper cross rod 101, a middle cross rod 102, a bottom plate 103, an upper vertical rod 104, a middle vertical rod 105 and a lower vertical rod 106; the moving device comprises a lower inclined rod 107, a telescopic rod 108, a supporting fixed rod 109, a hook roller 201 and an upper transverse rod row wheel 119, wherein one end of the telescopic rod 108 is welded with a bracket I112; one end of the lower inclined rod 107 is fixedly provided with a bracket II 113, the other end of the lower inclined rod 107 is connected with a universal joint 110 through a bolt, and the lower inclined rod 107 is connected with the telescopic rod 108 through the universal joint 110; the safety device comprises a level detector 600 and a tension detector 700, wherein the level detector 600 is arranged on the middle cross bar 102 through a bracket, and the tension detector 700 is welded on the inhaul cable 800. The high-altitude operation vehicle does not need to be leased, the equipment cost is reduced, the main construction area is the side face of the bridge, and the normal use of the lower lane is not influenced. Hang basket can angle regulation, height, adaptable in many sizes bridge bent cap, green hangs basket construction area but quick travel, and the efficiency of construction is higher. The bottom plate 103, the middle cross rod 102, the upper cross rod 101, the handrail upright rods 118, the handrails 117 and the hook rods of the hanging basket main body are rectangular tubes with the length of 160mm x 80mm x 8mm, the lower upright rods 106, the middle upright rods 105 and the upper upright rods 104 are hollow round rods with the length of 80mm x 6mm, and the adjusting upright rods for connecting the upper upright rods 104 and the middle upright rods 105 are hollow round rods with holes with the length of 50mm x 5 mm. Except that the bottom plate 103 adopts a 6mm pattern steel plate as a whole, the side surfaces are all closed by adopting a wire netting side surface and a back surface.
The adjusting vertical rod is connected with the upper vertical rod 104 and the middle vertical rod 105 in front of the hanging basket through a bolt inserting method, the upper vertical rod 104 and the lower vertical rod 105 in back of the hanging basket are connected, and the other rod pieces are connected through welding.
The bracket lifting points 116 of the upper transverse rods 101 of the upper transverse plate are welded on the left side and the right side of the hanging basket, the brackets are made of steel plates with the thickness of 8mm, and holes with the diameter of 10mm are formed in the middles of the brackets and are used as the lifting points.
The hanging basket is 2400mm in length, 2400mm in width and adjustable in height. The hanging basket hook 200 is provided with a hole with the diameter of 10 mm. In this embodiment, more preferably, the roller of the lower inclined rod 107 is a universal wheel, the telescopic rod 108 comprises double-layer steel pipes with holes, the diameter of each steel pipe is 6cm and 4cm, the wall thickness of each steel pipe is 8mm, and the pipe length can be set in the hanging basket by means of the plug 114 and the jack 115 which are arranged in a matching manner. The supporting and fixing rod 109 is a stainless steel plate with a thickness of 8mm, and is connected with the first bracket 112 of the outer rod of the telescopic rod 108 and the second bracket 113 fixed on the lower inclined rod 107 through bolts and welding. The lower inclined rod 107 and the telescopic rod 108 are connected by a universal joint 110, ensuring that the angle of the telescopic rod 108 can be freely changed. The universal joint 110 and the lower down-tilting rod 107 are connected by bolts, and the mounting position of the universal joint 110 on the lower down-tilting rod 107 can be adjusted according to different bolt hole positions.
The hook rollers 201 are arranged in 2 numbers and are provided with brake pads. Each row of the upper cross rod row wheels 119 is 3, and each longitudinal upper cross rod 101 is provided with one row which is 2 rows in total.
Specifically, the level detector 600 is a glass casing filled with conductive liquid, three electrode pins extending out of the bottom of the casing are immersed in the conductive liquid, the bottoms of the electrode pins are connected with a power supply, the left and right electrode pins are connected with the positive electrode of the battery, and the middle of the electrode pins is connected with the negative electrode of the battery. The electrode needle head is connected with the LED lamp as a warning lamp. The power supply adopts a button cell or a storage battery. The level detecting meter 600 is mounted on the middle rail 102 by a bracket.
The principle of operation of the level detector 600 is: when the level detector 600 is horizontal, the electrode needles are inserted into the conductive liquid, current is formed between the electrodes, and the LED lamp is on. When the glass shell is inclined, the electrode needle at the high-rising end cannot touch the conductive liquid, so that current cannot be generated, and the lamp is dark.
The tension detector 700 is a spring meter, two ends of the tension detector are welded on the inhaul cable 800, the shell can be provided with a storage battery or a button cell for providing a power supply, when no tension or tension is small, the current-conducting plates at two ends of the spring cannot touch the shell of the tension detector, a circuit is not communicated, and a lamp is not on. When a large pulling force is generated, the spring is pulled to be lengthened, the conducting plates at the two ends of the spring touch the shell, the circuit is smooth, and the warning lamp is on.
In this embodiment, it is more preferable that a cushion block is further disposed on the inner side of the suspension wing, and the cushion block is disposed at the connection position of the connection hook 200 and the suspension wing and is fixedly connected with the connection position through a wire and an expansion screw.
In this embodiment, it is more preferable that the spacer is made of a wood block having a cross-sectional size of 200cm × 200 cm.
In the present embodiment, it is more preferable that the stairs 111 are erected by steel pipes having a diameter of 50 mm. The staircase 111 is arranged on one side of the wire mesh and is connected with the wire mesh in a bolt connection or welding connection mode.
With continuing reference to fig. 1, the present invention further provides the aforementioned wall-hanging type aerial work method suitable for the prefabricated bridge, which includes the following steps:
step S1, preparing two 15-ton shackles, two 15-ton steel wire ropes and a 25-ton truck crane, and carrying out safety inspection on a hanging basket hanging point, the steel wire ropes and the shackles and carrying out test hanging;
step S2, adjusting the length of the adjusting vertical rod to a proper height through a plug pin jack mode according to the height of the cover beam 300, ensuring that the connecting hook roller 201 is in a brake static state, slowly moving the hanging basket to the position above a cover beam stop block and an anti-collision wall after the hanging basket is stabilized, aligning the hanging basket to the position, slowly falling down to lean against the end of the cover beam stop block, drawing a universal wheel of the connecting hook 200 into the cover beam guide rail 120 by constructors on the inner side of the cover beam 300, and connecting the connecting hook 200 with the overturn-preventing counterweight 500 in the precast bridge cover beam 300 through a stay cable 800;
step S3, adjusting the position of a bracket II 113 on the lower inclined rod by selecting bolt hole positions by personnel in the hanging basket, and drawing by a supporting fixed rod 109 to ensure that the angle of the telescopic rod 108 is vertical to the cover beam 300;
and step S4, adjusting the length through the telescopic rod 108 to ensure that the universal roller 400 is tightly attached to the cover beam 300, thereby completing the installation of the hanging basket.
In particular, the hanging basket dismantling step:
(1) the telescopic rod 108 is retracted, the position of the lower oblique rod bracket II 113 is adjusted, and the angle of the telescopic rod 108 is adjusted to the lower side.
(2) The personnel in the bent cap remove the anti-overturning counterweight 500;
(3) the crane translates the cradle through the hoisting point to slowly allow the universal wheels to leave the guide rail 120, and then the cradle is lifted up to remove the cradle.
The shift mode of the hanging basket has two types: single person operation and multi-person operation.
Multi-person operation:
(1) the personnel in the bent cap remove the anti-overturning counterweight 500;
(2) personnel in the bent cap open the brake pad of the hook roller 201 to ensure free sliding;
(3) move to the appropriate position, close the brake block, install and prevent the counter weight 500 that topples.
Single-person operation:
the personnel climb to hanging the basket top through the staircase in hanging the basket, get into the bent cap 300 inboard through handrail 117, carry out and prevent toppling counter weight 500 and demolish, and the brake block is opened, will hang the basket and slide to suitable position, closes the brake block, and the installation prevents toppling counter weight 500, gets into through handrail 117, staircase 111 again and hangs the basket and carry out the high altitude construction.
Hang basket personnel mode from top to bottom: the constructor gets into on hanging the basket and hangs the basket mode and have two kinds: firstly take the lift truck business turn over in the building site and hang the basket in, secondly personnel advance to go into prefabricated bridge bent cap 300 inboard, climb to hanging the basket top through handrail 117, get into from hanging basket staircase 111. And when the constructor goes out of the hanging basket, the reverse steps are carried out.
The above description is only for the purpose of describing the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention, and any variations and modifications made by those skilled in the art based on the above disclosure are within the scope of the appended claims.
Claims (7)
1. A wall-mounted type aerial working device suitable for a precast bridge is characterized by comprising a hanging basket and a connecting hook, wherein the hanging basket is fixedly connected with the top of a precast bridge cover beam suspension wing through the connecting hook;
the top end of the hanging basket is hung on the connecting hook, the bottom of the hanging basket is attached to the side face of the precast bridge capping beam through a universal roller, the connecting hook is connected with an overturn-preventing counter weight in the precast bridge capping beam through a pull rope, and the side face of the hanging basket is also provided with an escalator; the hanging basket comprises a hanging basket main body, a moving device and a safety device;
the hanging basket main body comprises an upper cross rod, a middle cross rod, a bottom plate, an upper vertical rod, a middle vertical rod and a lower vertical rod which are encircled;
the moving device comprises a lower inclined rod, a telescopic rod, a supporting fixed rod, a hook roller and an upper transverse rod row wheel, wherein one end of the telescopic rod is welded with a bracket I; a bracket II is fixedly arranged at one end of the lower inclined rod, the other end of the lower inclined rod is connected with a universal joint through a bolt, and the lower inclined rod is connected with the telescopic rod through the universal joint;
safety device includes level detection meter and tension detection meter, the level detection meter is settled on well horizontal pole through the support, the tension detection meter welds on the cable.
2. The wall-hanging type aerial working device suitable for the precast bridge of claim 1, wherein the upper vertical rod and the middle vertical rod are connected in a matched manner through a bolt and a jack.
3. The wall-hanging type aerial working device suitable for the precast bridge of claim 1, wherein a cushion block is further arranged on the inner side of the suspension wing, the cushion block is arranged at the joint of the connecting hook and the suspension wing and is fixedly connected with the suspension wing through an iron wire and an expansion screw, and the cushion block is made of battens with the cross section size of 200cm x 200 cm.
4. The wall-hanging type aerial working device suitable for the precast bridge of claim 1, wherein the escalator is formed by erecting steel pipes with the diameter of 50 mm.
5. The wall-hanging type aerial working device suitable for the precast bridge according to claim 1, wherein the level detector comprises a glass shell filled with conductive liquid, three electrode needles extend out of the bottom of the shell and are immersed in the conductive liquid, the bottoms of the electrode needles are connected with a power supply, the left electrode needle and the right electrode needle are connected with a battery anode, the middle electrode needle is connected with a battery cathode, and an electrode needle head is connected with an LED lamp as a warning lamp.
6. The wall-hanging type aerial working device suitable for the precast bridge of claim 1, wherein the tension detector is a spring gauge, two ends of the tension detector are welded on the inhaul cable, and a storage battery or a button battery is arranged on a shell of the tension detector to provide a power supply.
7. The wall-hanging type aerial work method suitable for the prefabricated bridge according to any one of claims 1 to 6, characterized by comprising the following steps of:
step S1, preparing two 15-ton shackles, two 15-ton steel wire ropes and a 25-ton truck crane, and carrying out safety inspection on a hanging basket hanging point, the steel wire ropes and the shackles and carrying out test hanging;
step S2, adjusting the length of the adjusting vertical rod to a proper height through a plug pin jack mode according to the height of the cover beam, ensuring that the roller of the connecting hook is in a brake static state, slowly moving the hanging basket to the position above a cover beam stop block and an anti-collision wall after the hanging basket is stabilized, aligning the hanging basket to the position, slowly dropping the end close to the cover beam stop block, drawing a universal wheel of the connecting hook into a cover beam guide rail by a constructor on the inner side of the cover beam, and connecting the connecting hook with an anti-overturn counterweight in the cover beam of the precast bridge through a pull cable;
step S3, adjusting the position of a bracket II on the lower inclined rod by selecting bolt hole positions by personnel in the hanging basket, and enabling the angle of the telescopic rod to be vertical to the cover beam by drawing through the supporting fixed rod;
and step S4, adjusting the length through the telescopic rod to ensure that the universal roller is tightly attached to the cover beam, thereby completing the installation of the hanging basket.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110375332.8A CN113512942A (en) | 2021-04-08 | 2021-04-08 | Wall-mounted type overhead working method and device suitable for prefabricated bridge |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110375332.8A CN113512942A (en) | 2021-04-08 | 2021-04-08 | Wall-mounted type overhead working method and device suitable for prefabricated bridge |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115012317A (en) * | 2022-07-08 | 2022-09-06 | 广州城建职业学院 | Climbing device for bridge erecting machine |
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| WO2009125070A1 (en) * | 2008-04-11 | 2009-10-15 | Hot Innovations Oy | Scaffold element, arrangement and method of use |
| CN207193754U (en) * | 2017-07-19 | 2018-04-06 | 北京首都国际机场股份有限公司 | A kind of urban road and bridge on highway maintenance Hanging Basket |
| CN108316138A (en) * | 2018-02-28 | 2018-07-24 | 朱利良 | A kind of hanging ladder for overpass maintenance |
| CN209052998U (en) * | 2018-10-23 | 2019-07-02 | 中国葛洲坝集团第一工程有限公司 | Collison fence for bridge apparatus for examination and repair |
| CN210013134U (en) * | 2019-05-31 | 2020-02-04 | 河南省公路工程局集团有限公司 | Attached type portable mounting and dismounting device for bridge anti-collision guardrail template |
| CN210561776U (en) * | 2019-07-10 | 2020-05-19 | 中交一航局第一工程有限公司 | Bridge anticollision barrier joins externally platform |
| CN211848937U (en) * | 2019-10-31 | 2020-11-03 | 云南交投公路建设第六工程有限公司 | Bridge floor is decorated construction and is used hanging cage with protective structure |
| CN112554080A (en) * | 2020-11-24 | 2021-03-26 | 上海建工集团股份有限公司 | Wall-mounted operation device suitable for prefabricated bridge and mounting method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115012317A (en) * | 2022-07-08 | 2022-09-06 | 广州城建职业学院 | Climbing device for bridge erecting machine |
| CN115012317B (en) * | 2022-07-08 | 2024-05-07 | 广州城建职业学院 | Climbing device for bridge girder erection machine |
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Application publication date: 20211019 |