CN112193984A - Steel reinforcement cage lifting and fixing device and steel reinforcement cage lifting method - Google Patents
Steel reinforcement cage lifting and fixing device and steel reinforcement cage lifting method Download PDFInfo
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- CN112193984A CN112193984A CN202011110936.1A CN202011110936A CN112193984A CN 112193984 A CN112193984 A CN 112193984A CN 202011110936 A CN202011110936 A CN 202011110936A CN 112193984 A CN112193984 A CN 112193984A
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- 230000002787 reinforcement Effects 0.000 title claims abstract description 215
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 155
- 239000010959 steel Substances 0.000 title claims abstract description 155
- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000003466 welding Methods 0.000 claims description 10
- 239000002023 wood Substances 0.000 claims description 10
- 238000010276 construction Methods 0.000 claims description 7
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 210000003205 muscle Anatomy 0.000 claims description 4
- 229910001335 Galvanized steel Inorganic materials 0.000 claims description 3
- 239000008397 galvanized steel Substances 0.000 claims description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 3
- 230000002265 prevention Effects 0.000 claims description 3
- 238000009435 building construction Methods 0.000 abstract description 2
- 244000035744 Hura crepitans Species 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000725 suspension Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
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- Civil Engineering (AREA)
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- Piles And Underground Anchors (AREA)
Abstract
The invention discloses a steel reinforcement cage lifting and fixing device and a steel reinforcement cage lifting method, relates to the technical field of building construction, and solves the problems that the steel reinforcement cage is easy to disturb in lifting and placing of the steel reinforcement cage into a pile hole, and large deformation and position deviation of the steel reinforcement cage occur. The technical scheme adopted by the invention is as follows: the hoisting and fixing device for the reinforcement cage comprises a hoisting device and a fixing device, wherein the hoisting device comprises a hoisting piece and a locking piece, two sides of the hoisting piece are respectively provided with a limiting hole, the locking piece penetrates through the limiting holes, and two ends of the hoisting piece are respectively provided with a hanging ring; the fixing device comprises cushion blocks placed around the pile hole, supporting rods arranged on the cushion blocks and hooks connected to the supporting rods, wherein the number of the hooks is at least two. The steel reinforcement cage carries out the handling through the rings of handling piece, reduces the handling and to the disturbance of steel reinforcement cage, avoids steel reinforcement cage stirrup to warp. The steel reinforcement cage is hoisted and placed into the pile hole, the fixing device can fix the steel reinforcement cage, the steel reinforcement cage is guaranteed to be placed into the pile hole stably and accurately, and pile forming quality is guaranteed.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a device for assisting in hoisting a reinforcement cage and fixing the reinforcement cage at a pile hole, and a method for hoisting the reinforcement cage in the pile hole through the device.
Background
In the field of engineering construction, the transportation and the suspension of the reinforcement cage cannot be avoided. The quality of the steel reinforcement cage is guaranteed in the transportation process, the steel reinforcement cage can be accurately positioned in the hoisting process of the steel reinforcement cage, and the stability of the steel reinforcement cage is guaranteed in the pouring process, so that the construction quality of the pile is guaranteed.
In actual construction, a crane is generally directly adopted to lift, transport and place the reinforcement cage at present. Some construction sites adopt machines such as excavators to carry out short-distance transportation of the reinforcement cage. Influenced by factors such as the limitation of a working area and hoisting machinery or the calculation deviation of a hoisting point, the stirrups of the reinforcement cage can be disturbed in the transportation process of the reinforcement cage, and the stirrups interval of the reinforcement cage is enabled to generate large deformation. Meanwhile, in the process of placing the steel reinforcement cage, the steel reinforcement cage is directly lifted and placed through a crane, the lifting position and the elevation of the steel reinforcement cage in a pile hole cannot be effectively guaranteed, the steel reinforcement cage can be influenced in the pile foundation pouring process, the efficiency is low, and the engineering quality cannot be guaranteed.
For example, patent publication No. CN 209053090U discloses a device for facilitating the fixing of a heavy steel reinforcement cage, which is used for hoisting and fixing the steel reinforcement cage. The device comprises a bearing frame, a supporting frame and a lifting mechanism, wherein the bearing frame is arranged on the ground and is positioned right above a reinforcement cage, and the upper surface of the bearing frame is horizontal; at least a pair of fixing device, its relative setting and mutually support and hoist the upper end of steel reinforcement cage, and fixing device includes: the unloading sand box is in a shell shape with an open upper end and is arranged on the upper surface of the bearing frame, and the bottom of the side wall of the unloading sand box is provided with a sand discharging port which can be opened and closed; the upper steel plate can move up and down in the inner cavity of the unloading sand box along the height direction and is arranged in the unloading sand box; the lower end of the lifting rib vertically penetrates through the upper steel plate, the unloading sand box and the bearing frame in sequence and is detachably connected with a main rib of the reinforcement cage; the upper sleeve can be detachably fixed at different heights at the upper end of the hanging rib, and is blocked on the upper surface of the upper steel plate. The device is only to the fixing device of heavy weight steel reinforcement cage, and the device application is comparatively loaded down with trivial details, and the function is single, can not solve the transportation problem of steel reinforcement cage, and owing to only a pair of fixing device, the not suitable steel reinforcement cage in great aperture is fixed, also is not suitable for the steel reinforcement cage in different apertures to be fixed.
Disclosure of Invention
The invention firstly provides a hoisting and fixing device for a reinforcement cage, and solves the problems that the hoisting and placing of the reinforcement cage into a pile hole are easy to disturb the reinforcement cage, and the reinforcement cage is greatly deformed and has position deviation.
The technical scheme adopted by the invention for solving the technical problems is as follows: the hoisting and fixing device for the reinforcement cage comprises a hoisting device and a fixing device, wherein the hoisting device comprises a hoisting piece and a locking piece, the hoisting piece is provided with an included angle in the cross section, a plurality of limiting holes are respectively formed in two sides of the hoisting piece, the locking piece penetrates through the limiting holes in the two sides of the hoisting piece, and hoisting rings are respectively arranged at two ends of the hoisting piece; the fixing device comprises a cushion block used for being placed around the pile hole, a supporting rod arranged on the cushion block and at least two hooks connected to the supporting rod.
Specifically, the method comprises the following steps: the lifting piece is an angle steel, two ends of the angle steel are respectively connected with two lifting rings in a welding mode, and the locking piece is a U-shaped bolt.
More specifically: the specification of the angle steel is L63 multiplied by 63 multiplied by 4mm, and the flying ring is a circular ring which is made of galvanized steel and has the outer diameter of 45mm and the inner diameter of 25mm or is made of steel bars which have the diameter not less than 20mm and are subjected to rust prevention treatment.
Further, the method comprises the following steps: the cushion blocks are four groups, each group comprises two cushion blocks which are respectively used for being placed at four corners of the pile hole, a connecting piece is arranged between the cushion blocks in the same group, and a clamping groove is formed in the top of the connecting piece; the bracing piece is the steel pipe, and the steel pipe is two and parallel placement, and the steel pipe is placed in the draw-in groove of connecting piece, sets up the lantern ring on two steel pipes respectively, clearance fit between the lantern ring and the steel pipe, and the lantern ring is through hanging muscle hookup.
Specifically, the method comprises the following steps: the cushion block is made of square wood, the size of the square wood is not less than 30 multiplied by 30cm, and the thickness of the square wood is not less than 10 cm; the connecting piece is angle steel, and the specification of the angle steel is L63 multiplied by 63 multiplied by 4 mm; the support rod is a steel pipe, and the specification of the steel pipe is not less than phi 48.3 multiplied by 3.0 mm; the lantern ring internal diameter is greater than steel pipe diameter 1 ~ 3mm, and the bottom of the lantern ring sets up the perforation, hangs the one end of muscle and connects in the perforation, hangs the muscle and is wire rope.
The hoisting and fixing device for the reinforcement cage has the beneficial effects that: overhead hoist is installed respectively at the both ends of steel reinforcement cage, and the rings of rethread handling piece carry out the handling, and the steel reinforcement cage of certain length within range of hoisting point department is directly supported to handling piece, reduces the disturbance to the steel reinforcement cage during the handling, can avoid steel reinforcement cage stirrup to warp. Pile hole is put into in the steel reinforcement cage hoist and mount, and fixing device can assist fixed steel reinforcement cage, and stability problem and the accurate fixed position problem of steel reinforcement cage when solving steel reinforcement cage and transferring downthehole ensure to become stake quality. The hoisting device and the fixing device can be repeatedly used after being detached, and the structure is simple and easy to manufacture. The lifting rod is an angle steel and is fixedly locked in the reinforcement cage through a U-shaped bolt, and can be stably installed on the inner side or the outer side of the reinforcement cage. The cushion block is made of square wood, and the supporting rod is a steel pipe, so that the cost is low and the manufacturing is easy.
The invention also provides a reinforcement cage hoisting method, which solves the problem that the conventional reinforcement cage hoisting method is easy to cause large deformation of the reinforcement cage. The technical scheme adopted by the invention for solving the technical problem is as follows: the steel reinforcement cage hoisting method is characterized in that any steel reinforcement cage hoisting and fixing device is matched with hoisting equipment to hoist a steel reinforcement cage into a pile hole, and the method comprises the following steps:
and S1, respectively installing at least one lifting device at two ends of the reinforcement cage, transporting the reinforcement cage to a construction site and horizontally lifting the reinforcement cage to the position near the pile hole.
Further, the method comprises the following steps: in the step S1, two lifting devices are respectively installed at two ends of the reinforcement cage, the two lifting devices at the same end are located at the inner side of the reinforcement cage and opposite to each other, and a stay bar is arranged between the two lifting devices.
Specifically, the method comprises the following steps: vaulting pole and handling piece are the angle steel, and the locking part is U type bolt, places the handling piece in the inboard or the outside of steel reinforcement cage hoisting point, penetrates spacing hole and fixed with U type bolt again, makes the reinforcing bar of steel reinforcement cage be located between angle steel and the U type bolt, and the rings of rethread handling piece carry out the handling.
And S2, placing the cushion blocks of the fixing device around the pile hole to ensure that the hooks are uniformly distributed at the edge of the pile hole.
S3, the first section of reinforcement cage is lifted and placed right above the pile hole through the lifting equipment, the upper end of the first section of reinforcement cage stops being placed when being placed at the pile hole opening, the hook is connected with the upper end of the first section of reinforcement cage, and the lifting equipment is separated from the first section of reinforcement cage.
Further, the method comprises the following steps: when two sections of reinforcement cages are needed in the pile hole, the following steps are added between the step S3 and the step S4:
s3-1, hoisting a second section of reinforcement cage to be right above the pile hole by hoisting equipment, welding and connecting the upper end of the first section of reinforcement cage and the lower end of the second section of reinforcement cage, taking down the hook after welding, and stopping the lowering when the upper end of the second section of reinforcement cage is lowered to the pile hole; and then the hook is connected with the upper end of the second section of reinforcement cage, and the hoisting equipment is separated from the second section of reinforcement cage.
Further, the method comprises the following steps: when three or more steel reinforcement cages are required in the pile hole, the following steps are added between the step S3-1 and the step S4:
s3-2, repeating the step S3-1 until the upper end of the last section of the reinforcement cage is connected with the hook.
And S4, adjusting the position of the reinforcement cage in the pile hole relative to the pile hole, pouring until the reinforcement cage in the pile hole is stable, and taking down the hook on the reinforcement cage.
The invention has the beneficial effects that: the steel reinforcement cage hoisting method has the following advantages: (1) the operation is simple, and compared with the traditional steel reinforcement cage transportation and hoisting, the additional increase of human hands is not needed. (2) The accuracy of the placement position of the reinforcement cage is ensured, and the quality problems of stirrup deformation, large space and the like in the transportation process of the reinforcement cage can be effectively avoided; meanwhile, the stability problem when the reinforcement cage is placed in the hole and the problem of accurate fixing and positioning of the reinforcement cage can be avoided, and the pile forming quality is improved. (3) The process is simple continuous, practices thrift the cost, with transportation, hoist and mount and the laying of steel reinforcement cage as an organic whole, the member is less moreover, can dismantle, the material is lighter, repeatedly usable, and the on-the-spot turnover transport is convenient. The steel bar cage can avoid welding steel bars at the hoisting position of the steel bar cage, and cost is saved. (4) The pile hole diameter-changing device can adapt to the diameter-changing of a reinforcement cage and a pile hole or the length-changing of the reinforcement cage, and has strong universality.
The lantern ring is worn to establish by the bracing piece, and the position of the lantern ring on the bracing piece is convenient for remove to the couple is connected to the lantern ring, and then adjusts the relative stake hole's of the downthehole steel reinforcement cage position of stake, can reach different apertures and settle fixing device and carry out the purpose of fixed steel reinforcement cage. The length of the hanging rib for connecting the support rod and the hook can be adjusted, and the purpose of accurately positioning the reinforcement cages with different lengths is achieved.
Drawings
Fig. 1 is a schematic structural diagram of a lifting piece of the lifting device in the embodiment of the invention.
Fig. 2 is a plan view of the fitting relationship between the fixing device and the reinforcement cage according to the embodiment of the present invention.
Fig. 3 is an elevational view of the engagement of the fastener with the reinforcement cage in accordance with an embodiment of the present invention.
Fig. 4 is a schematic view of the hook and loop connection of fig. 3.
Parts, positions and numbers in the drawings: the lifting and transporting device comprises a lifting and transporting piece 1, a limiting hole 11, a lifting ring 12, a cushion block 2, a supporting rod 3, a hook 4, a connecting piece 5, a lantern ring 6, a lifting rib 7 and a reinforcing cage 8.
Detailed Description
The invention will be further explained with reference to the drawings.
The lifting and fixing device for the reinforcement cage comprises a lifting device and a fixing device. The hoisting device is used for being installed on the reinforcement cage, and hoisting the reinforcement cage through the hoisting device, and comprises horizontal hoisting and vertical hoisting of the reinforcement cage; the fixing device is used for being arranged at the orifice of the pile hole, and is used for assisting in fixing and positioning the reinforcement cage placed in the drill hole, so that the accuracy of the placement position of the reinforcement cage is guaranteed. The lifting device comprises a lifting piece and a locking piece, and referring to fig. 1, the lifting piece 1 has an included angle in the cross section, and the included angle is preferably a right angle or an acute angle. The longitudinal bars of the reinforcement cage can be surrounded. The two ends of the lifting piece 1 are respectively provided with a lifting hole or a lifting ring 12, each end is provided with at least one lifting ring 12, for example, two ends of two sides of the lifting piece 1 are respectively provided with one lifting ring 12, as shown in fig. 1. Two sides of the lifting piece 1 forming the included angle are respectively provided with a plurality of limiting holes 11, longitudinal ribs of the steel reinforcement cage are placed in the included angle of the lifting piece 1, the locking piece is penetrated into the limiting holes 11 on the two sides of the lifting piece 1, and the longitudinal ribs are clamped between the lifting piece 1 and the locking piece to guarantee stability. In addition, the cross section of the lifting piece 1 can be bent to form three or more edges, and the lifting piece can be matched with the locking piece to coat the longitudinal bars of the reinforcement cage. The locking piece can be a straight bolt, and a better scheme is to select a U-shaped bolt. The lifting piece 1 can be made of angle steel, is low in cost and easy to manufacture, and in order to guarantee stress, the specification of the angle steel is L63 multiplied by 63 multiplied by 4mm, namely the width of two sides of the angle steel is 63mm, and the thickness of the two sides of the angle steel is 4 mm. The diameter phi of the limiting hole 11 is 10 mm. The hoisting ring 12 is made of galvanized steel and has an outer diameter of 4.5cm and an inner diameter of 2.5cm or is made of steel bars with a diameter not less than 20mm and subjected to rust prevention treatment, and the hoisting ring 12 penetrates through the angle steel and is 2cm away from the end part of the angle steel.
Referring to fig. 2 to 4, the fixing device includes a cushion block 2 for placing around a pile hole, a support rod 3 disposed on the cushion block 2, and hooks 4 connected to the support rod 3, wherein the number of the hooks 4 is at least two. The cushion block 2 is used for being placed around the pile hole and used for dispersing stress, the cushion block 2 can be made of square wood, the size of the square wood is not less than 30 x 30cm, and the thickness of the square wood is not less than 10 cm. The supporting rod 3 can be directly placed on the top of the cushion block 2. For example, the cushion blocks 2 are four groups, each group comprises two cushion blocks 2 which are respectively used for being placed at the four corners of a pile hole, connecting pieces 5 are arranged between the cushion blocks 2 in the same group, the connecting pieces 5 are used for ensuring the stability between the two cushion blocks 2 in the same group, and clamping grooves for placing the supporting rods 3 are arranged at the tops of the connecting pieces 5. Connecting piece 5 optional angle steel, for example choose for use overhead hoist's of above-mentioned overhead hoist handling spare 1, the angle steel middle part sets up the semicircle trompil as the draw-in groove, and when bracing piece 3 was the pipe, the diameter of draw-in groove slightly was greater than about 2mm of the diameter of bracing piece 3. The connecting piece 5 is the lifting piece 1 of the lifting device, so that the specification of parts can be reduced, and the manufacturing is simplified. The supporting rod 3 is provided with a lantern ring 6, the lantern ring 6 can slide along the supporting rod 3, and the lantern ring 6 is connected with the hook 4 through the hanging rib 7. The number of the hooks 4 is at least two, and the hooks are uniformly distributed around the pile hole. For example, as shown in fig. 2, the support rod 3 is a steel pipe, the specification of the steel pipe is not lower than phi 48.3 × 3.0mm, the two steel pipes are arranged in parallel, the steel pipe is arranged in a clamping groove of the connecting piece 5, the two steel pipes are respectively provided with a lantern ring 6, the lantern ring 6 is in clearance fit with the steel pipe, the inner diameter of the lantern ring 6 is larger than the diameter of the steel pipe by 1-3 mm, and the lantern ring 6 is connected with the hook 4 through a hanging rib 7. As shown in fig. 4, a through hole is formed at the bottom of the lantern ring 6, one end of the hanging rib 7 is connected in the through hole, the other end of the hanging rib 7 is connected with a hook, and the hanging rib 7 is a steel wire rope.
The second subject of the invention is a reinforcement cage hoisting method, which uses the reinforcement cage hoisting and fixing device to hoist the reinforcement cage into a pile hole by matching with hoisting equipment, such as a crane, and comprises the following steps:
and S1, respectively installing at least one lifting device at two ends of the reinforcement cage, transporting the reinforcement cage to a construction site and horizontally lifting the reinforcement cage to the position near the pile hole.
When the reinforcement cage is short, only two ends of the reinforcement cage can be respectively provided with a hoisting device; when the steel reinforcement cage is longer, can increase hoisting accessory's quantity in the middle part of the steel reinforcement cage to increase hoisting point quantity, guarantee the safety that the steel reinforcement cage was hung when transportation, handling to place. The steel reinforcement cage sets up to two overhead hoist according to putting into the downthehole position relation of stake, steel reinforcement cage upper end, is convenient for carry out vertical handling to the steel reinforcement cage. The horizontal hoisting refers to the hoisting of the reinforcement cage in the axial direction in a horizontal shape, and the vertical hoisting refers to the hoisting of the reinforcement cage in the axial direction in a vertical shape. In order to improve the integrity of the steel reinforcement cage and avoid the deformation in the hoisting process, the hoisting devices at the hoisting points of the steel reinforcement cage are preferably arranged on two opposite sides of the steel reinforcement cage in pairs, and a stay bar is arranged between the two hoisting devices and is positioned in the diameter direction of the cross section of the steel reinforcement cage, so that the deformation of the steel reinforcement cage is avoided. When the support rods are arranged, the hoisting device is preferably arranged on the inner side of the reinforcement cage. When the two ends of the steel reinforcement cage are respectively provided with the lifting points, the two ends of the steel reinforcement cage are respectively provided with the two lifting devices, the two lifting devices at the same end of the steel reinforcement cage are positioned at the two opposite sides in the steel reinforcement cage, and the support rod is arranged between the two lifting devices. The vaulting pole can select angle steel, H shaped steel, steel pipe etc. and the accessible bolt links to each other with handling piece 1, for example through bolted connection in the spacing hole 11 of handling piece 1.
And S2, placing the cushion block 2 of the fixing device around the pile hole, and uniformly distributing the hooks 4 at the edge of the pile hole.
Referring to fig. 2 and 3, the cushion blocks 2 are placed around the pile hole, the support rods 3 can be directly placed on the tops of the cushion blocks 2, or the connecting pieces 5 are placed between the cushion blocks 2, and the support rods 3 are placed on the tops of the connecting pieces 5. The supporting rod 5 is connected with a lantern ring 6, and the lantern ring 6 is connected with the hook 4 through a hanging rib 7. The support rods 3 may be straight rod-shaped, and as shown in fig. 2 and 3, the support rods 5 may be two or more. In addition, the support rods 3 may be curved or circular, as long as they can be stably placed around the opening of the pile hole.
S3, the first section of steel reinforcement cage is hung and placed right above the pile hole through the hoisting equipment, the upper end of the first section of steel reinforcement cage stops being placed when being placed at the pile hole opening, the hook 4 is connected with the upper end of the first section of steel reinforcement cage, and the hoisting equipment is separated from the first section of steel reinforcement cage.
When the hoisting equipment hoists the first section of the reinforcement cage, the two hoisting devices at the upper end of the first section of the reinforcement cage can be used for vertically hoisting. After the hook 4 is connected with the upper end of the first section of reinforcement cage, the position of the hook 4 is relatively accurate relative to the pile hole or is convenient to adjust to the relatively accurate position, so that the position of the first section of reinforcement cage relative to the orifice of the pile hole can be ensured. At least two, and preferably two, suspension points are provided at the upper end of the first section of the reinforcement cage, the two suspension points being located on the same diameter. After the upper end of the first section of reinforcement cage is connected with the hook 4, the hoisting device on the first section of reinforcement cage can be dismounted.
When the reinforcement cage is only one section, the subsequent step S4 can be directly performed. When two sections of reinforcement cages are needed in the pile hole, after the first section of reinforcement cage is placed, the second section of reinforcement cage is continuously placed, namely, the following steps are carried out:
s3-1, hoisting the second section of reinforcement cage to a welding height right above the pile hole by hoisting equipment, welding the upper end of the first section of reinforcement cage and the lower end of the second section of reinforcement cage, and after welding, stably connecting the first section of reinforcement cage and the second section of reinforcement cage, namely taking down the hook 4. Transfer the second festival steel reinforcement cage through lifting by crane equipment, the upper end of second festival steel reinforcement cage stops transferring when transferring to stake hole mouth department, links to each other 4 and the upper end of second festival steel reinforcement cage with the couple again to lift by crane equipment and second festival steel reinforcement cage separately, can demolish the overhead hoist on the second festival steel reinforcement cage this moment.
In the steps, before the steel reinforcement cage is vertically hoisted, other hoisting devices except the hoisting device at the upper end of the steel reinforcement cage can be dismantled, and the dismantled hoisting device can be repeatedly used. When the lifting device adopts steel, the steel can be directly poured into the pile without being taken down. When the lifting piece 1 of the lifting device is wrapped on the surface of the reinforcement cage, the lifting device is directly taken down. When the hoisting device is symmetrically wrapped in the steel reinforcement cage along the diameter direction, the steel reinforcement cage is hoisted into the pile hole, and the hoisting device is detached under the assistance of hoisting equipment after the hook 4 hooks the steel reinforcement cage.
After the upper end of the first section of reinforcement cage and the lower end of the second section of reinforcement cage are welded and connected, the upper end of the second section of reinforcement cage is stressed through the hoisting equipment, so that the hook 4 can be taken down to continuously lower the two sections of reinforcement cages. And when three or more sections of reinforcement cages are needed in the pile hole, repeating the step S3-1 until the upper end of the last section of reinforcement cage 8 is connected with the hook 4, and referring to fig. 2.
And S4, adjusting the position of the reinforcement cage 8 in the pile hole relative to the pile hole, pouring until the reinforcement cage 8 in the pile hole is stable, and taking down the hook 4 on the reinforcement cage 8.
Because the position of the lantern ring 6 on the supporting rod 3 can be adjusted, and the placing position of the cushion block 2 can also be adjusted in advance, the diameter can be adjusted along the radial direction, the pile holes with different apertures can be adapted, and the purpose of fixing reinforcement cages with different diameters can be achieved. The length of the hanging rib 7 between the lantern ring 6 and the hook 4 can be adjusted, and the purpose of accurately positioning the reinforcement cages with different lengths can be achieved. And after the last section of the reinforcement cage is fixed by the fixing device, pouring operation is carried out, the pouring operation is carried out to a certain height, and the hook 4 is taken down after the reinforcement cage 8 is stable. Pouring operation needs to be finished within 4 hours, and in the pouring process, the steel reinforcement cage 8 is prevented from floating upwards and mud pollution is prevented. After pouring is finished, marks are made at the pile positions, and pile head damage caused by rolling of vehicles or mechanical equipment is prevented.
Claims (10)
1. Reinforcing bar cage handling and fixing device, its characterized in that: the lifting device comprises a lifting piece (1) and a locking piece, the lifting piece (1) is provided with an included angle on the cross section, a plurality of limiting holes (11) are respectively arranged on two sides of the lifting piece (1), the locking piece penetrates through the limiting holes (11) on the two sides of the lifting piece (1), and lifting rings (12) are respectively arranged on two ends of the lifting piece (1); the fixing device comprises a cushion block (2) used for being placed around the pile hole, a supporting rod (3) arranged on the cushion block (2), and hooks (4) connected to the supporting rod (3), wherein the number of the hooks (4) is at least two.
2. The steel reinforcement cage lifting and fixing device of claim 1, wherein: the lifting piece (1) is an angle steel, two ends of the angle steel are respectively connected with two lifting rings (12) in a welding mode, and the locking piece is a U-shaped bolt.
3. The steel reinforcement cage lifting and fixing device of claim 2, wherein: the specification of the angle steel is L63 multiplied by 63 multiplied by 4mm, and the hanging ring (12) is a circular ring which is made of galvanized steel and has the outer diameter of 45mm and the inner diameter of 25mm or is made of steel bars which have the diameter not less than 20mm and are subjected to rust prevention treatment.
4. A reinforcement cage handling and fixing apparatus as claimed in claim 1, 2 or 3, wherein: the cushion blocks (2) are four groups, each group comprises two cushion blocks (2) which are respectively placed at four corners of the pile hole, a connecting piece (5) is arranged between the cushion blocks (2) in the same group, and a clamping groove is arranged at the top of the connecting piece (5); bracing piece (3) are the steel pipe, and the steel pipe is two and parallel placement, and the steel pipe is placed in corner connector (5) draw-in groove, sets up lantern ring (6) on two steel pipes respectively, clearance fit between the lantern ring (6) and the steel pipe, and couple (4) are connected through hanging muscle (7) to the lantern ring (6).
5. The steel reinforcement cage lifting and fixing device of claim 4, wherein: the cushion block (2) is a square wood, the size of the square wood is not less than 30 multiplied by 30cm, and the thickness of the square wood is not less than 10 cm; the connecting piece (5) is angle steel, and the specification of the angle steel is L63 multiplied by 63 multiplied by 4 mm; the support rod (3) is a steel pipe, and the specification of the steel pipe is not less than phi 48.3 multiplied by 3.0 mm; the internal diameter of the lantern ring (6) is larger than the diameter of the steel pipe by 1-3 mm, the bottom of the lantern ring (6) is provided with a through hole, one end of the hanging rib (7) is connected in the through hole, and the hanging rib (7) is a steel wire rope.
6. The steel reinforcement cage hoisting method is characterized in that: the steel reinforcement cage hoisting and fixing device of any one of claims 1 to 5 is matched with hoisting equipment to hoist the steel reinforcement cage into the pile hole, and comprises the following steps:
s1, respectively installing at least one lifting device at two ends of the reinforcement cage, transporting the reinforcement cage to a construction site and horizontally lifting the reinforcement cage to the position near a pile hole;
s2, placing the cushion blocks (2) of the fixing device around the pile hole, and uniformly distributing the hooks (4) at the edge of the pile hole;
s3, hoisting the first section of reinforcement cage right above the pile hole through hoisting equipment, stopping hoisting when the upper end of the first section of reinforcement cage is hoisted to the pile hole opening, connecting the hook (4) with the upper end of the first section of reinforcement cage, and separating the hoisting equipment from the first section of reinforcement cage;
and S4, adjusting the position of the reinforcement cage (8) in the pile hole relative to the pile hole, pouring until the reinforcement cage (8) in the pile hole is stable, and taking down the hook (4) on the reinforcement cage (8).
7. The reinforcement cage hoisting method of claim 6, wherein: in the step S1, two lifting devices are respectively installed at two ends of the reinforcement cage, the two lifting devices at the same end are located at the inner side of the reinforcement cage and opposite to each other, and a stay bar is arranged between the two lifting devices.
8. The reinforcement cage hoisting method of claim 7, wherein: vaulting pole and handling piece (1) are the angle steel, and the locking part is U type bolt, places handling piece (1) in the inboard or the outside of steel reinforcement cage lifting point, penetrates spacing hole (11) and fixes with U type bolt again, makes the reinforcing bar of steel reinforcement cage be located between angle steel and the U type bolt, and rings (12) of rethread handling piece (1) carry out the handling.
9. A reinforcement cage hoisting method as defined in claim 6, 7 or 8, wherein: the following steps are added between the step S3 and the step S4:
s3-1, hoisting a second section of reinforcement cage to be right above the pile hole by hoisting equipment, welding and connecting the upper end of the first section of reinforcement cage and the lower end of the second section of reinforcement cage, taking down the hook (4) after welding, and stopping lowering when the upper end of the second section of reinforcement cage is lowered to the pile hole; and then the hook (4) is connected with the upper end of the second section of reinforcement cage, and the hoisting equipment is separated from the second section of reinforcement cage.
10. The reinforcement cage hoisting method of claim 9, wherein: the following steps are added between the step S3-1 and the step S4:
s3-2, repeating the step S3-1 until the upper end of the last section of the reinforcement cage is connected with the hook (4).
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