Cap beam prestressed high altitude tensioning operation cage

Abstract

The present invention proposes a prestressed cap beam high-altitude tensioning operation cage, comprising: a square body, a walking track beam is respectively arranged on the two opposite sides of the upper part of the body, the two walking track beams are arranged relatively parallel in the horizontal direction, a working sliding beam is arranged between the two walking track beams, and translates along the setting direction of the walking track beam; a working sliding wheel group is arranged on the working sliding beam; a cage body hanging ring structure is arranged on the side of the body parallel to the walking track beam, which is used to hang the body on the block of the cap beam. The prestressed cap beam high-altitude tensioning operation cage of the present invention realizes the high-altitude safe and efficient tensioning construction of high-pier prestressed cap beams. The prestressed cap beam high-altitude tensioning operation cage is easy to install, disassemble and assemble, and is convenient for rapid turnover in construction work environments with difficult transportation; the self-suspension of the cap beam block can avoid long-term occupation of lifting equipment and reduce construction costs.

Description

Technical Field

[0001] The invention relates to the technical field of high-altitude prestressed tensioning construction of a high-pier prestressed cap beam, and in particular to an operating cage for high-altitude prestressed tensioning of a cap beam. Background Art

[0002] In the current field of highway bridge construction, environmental conditions for crossing rivers and streams are often constrained during construction. Many bridges are designed with high piers and large spans of prestressed cap beams. These prestressed cap beam structures have large cantilevers, and the effective distance from the ground can reach more than ten meters or even hundreds of meters. In some special environments, high-altitude prestressed tensioning construction has caused many difficulties in terms of safety, economic cost and construction convenience. For example, due to the height of the construction, the crane cannot be directly extended to the construction surface, and the tower crane and other lifting measures that can be effectively used are not suitable for long-term cooperation with high-altitude tensioning construction in terms of cost and safety; and the construction surface cannot be effectively fixed, and the safety of the operators and the construction quality cannot be reliably guaranteed.

[0003] In the current construction field, high-altitude structures with prestressed designs are also very common, and the prestressed tensioning operations of the cap beams are mostly concentrated at the two ends of the cap beams. Therefore, in the traditional high-altitude prestressed cap beam tensioning, the operator and the tensioning equipment are first placed in the cage, and the cage or hanging basket is lifted by a lifting machinery to the high-altitude working surface for construction. The high-altitude tensioning faced by the traditional process occupies large lifting equipment for a long time, and because the operators do not have a stable and standardized construction platform, they need to frequently move the heavy tensioning equipment, which has very prominent construction efficiency and safety hazards; being in a high-altitude environment for a long time on a limited working surface will have a certain impact on the workers' physical and mental health, and will gradually increase the safety hazards as time goes on. At the same time, due to the imperfection or backwardness of the auxiliary facilities for the operation, the construction efficiency and construction quality are also greatly reduced. Summary of the invention

[0004] In view of this, the present invention proposes a cap beam prestressed high-altitude tensioning operation cage, which aims to solve the problem that the existing operation cage cannot safely and efficiently complete the tensioning construction operation of the prestressed cap beam in a high-altitude environment.

[0005] In one aspect, the present invention proposes a cap beam prestressed high-altitude tensioning operation cage, comprising: a square main body, a walking track beam is respectively arranged on the two opposite sides of the upper part of the main body, the two walking track beams are arranged relatively parallel in the horizontal direction, a working sliding beam is arranged between the two walking track beams, the working sliding beam is arranged in a direction perpendicular to the walking track beam, and translates along the setting direction of the walking track beam; a working sliding wheel group is arranged on the working sliding beam, and the working sliding wheel group translates along the setting direction of the working sliding beam; a cage hanging ring structure is arranged on the side of the main body parallel to the walking track beam, which is used to hang the main body on the stopper of the cap beam.

[0006] Furthermore, the working sliding beam includes two channel steels and two walking wheels, the opening directions of the two channel steels are arranged opposite to each other, and the working sliding wheel group is clamped between the two channel steels; a walking wheel is respectively arranged at both ends of the channel steel, and the walking wheel is arranged in a direction perpendicular to the channel steel shape, and the walking wheel is clamped in the walking track beam.

[0007] Furthermore, the working sliding beam also includes an extended wheel axle and an axle fixing plate, the wheel axle fixing plate is arranged in the vertical direction, and one side of the wheel axle fixing plate is connected to the ends of the two channel steels; the extended wheel axle is arranged in the horizontal direction, one end of which is connected to the other side of the wheel axle fixing plate, and the other end is connected to the walking wheel.

[0008] Furthermore, an operating platform hanging column is respectively arranged at the lower side of both ends of each of the walking track beams, and the operating platform hanging column is arranged along the vertical direction.

[0009] Furthermore, the cage hanging ring structure includes a force-bearing hanging ring and a hanging ring load-bearing stop rod. One side of the force-bearing hanging ring is connected to the operating platform hanging column, and the hanging ring load-bearing stop rod is connected to the other side of the force-bearing hanging ring. A preset distance is maintained between the hanging ring load-bearing stop rod and the operating platform hanging column.

[0010] Furthermore, the working sliding wheel group includes a working sliding wheel, a hanging plate, a pin-type wheel axle and a pin-type hanging bar. The working sliding wheel is clamped between the two channel steels. The two hanging plates are respectively arranged on both sides of the channel steel. The pin-type wheel axle is passed through the working sliding wheel. The two ends of the pin-type wheel axle are respectively connected to the upper part of one of the hanging plates, and the two ends of the pin-type hanging bar are respectively connected to the lower part of one of the hanging plates. A channel steel is arranged between the pin-type wheel axle and the pin-type hanging bar, and the pin-type hanging bar is used to hang a manual lifting device.

[0011] Furthermore, the ends of the two walking track beams on the same side are respectively connected by a track connecting beam.

[0012] Furthermore, a plurality of latch sleeves are evenly arranged on the operating platform hanging column, and the latch sleeves on two adjacent operating platform hanging columns are connected by a latch-type tie rod arranged in a horizontal direction, and the latch-type tie rod is arranged directly below the walking track beam.

[0013] Furthermore, a lifting lug is respectively provided at the four corners of the upper portion of the main body.

[0014] Compared with the prior art, the beneficial effect of the present invention is that the prestressed cap beam high-altitude tensioning operation cage of the present invention realizes the high-altitude safe and efficient tensioning construction of the prestressed cap beam of the high pier. The prestressed cap beam high-altitude tensioning operation cage is easy to install, disassemble and assemble, and is convenient for rapid turnover in a construction environment with difficult traffic; the self-suspension of the cap beam block can avoid long-term occupation of lifting equipment and reduce construction costs; the track beam system on the upper part of the operation cage can meet the sliding of the heavy weight jack forward and backward and left and right, and can also achieve up and down movement through the hand chain hoist, reducing the time and labor of pure manual operation on a limited working surface and increasing construction efficiency; the main force-bearing structure of the operation cage adopts channel steel components, and the connection between the components adopts mechanical hole through pin shaft connection to meet the load bearing of the cage body during high-altitude operation, and the small twisting generated under the action of external force can also be offset by the advantage of pin shaft connection, avoiding the long-term twisting of the main force node weld to produce cracking hazards, thereby improving the safety of high-altitude operation construction. Overall, it meets the quality control and quality requirements in the construction process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present invention. Moreover, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0016] Figure 1 A three-dimensional structural diagram of an operating cage provided by an embodiment of the present invention;

[0017] Figure 2 A top view of an operating cage provided by an embodiment of the present invention;

[0018] Figure 3 A side view of an operating cage provided by an embodiment of the present invention;

[0019] Figure 4 A schematic diagram of the installation of a first operating cage provided in an embodiment of the present invention;

[0020] Figure 5 A schematic diagram of the installation of a second operating cage provided in an embodiment of the present invention;

[0021] Figure 6A schematic diagram of the connection between the walking track beam and the working sliding beam provided in an embodiment of the present invention;

[0022] Figure 7 A schematic diagram of the structure of a working sliding beam provided in an embodiment of the present invention;

[0023] Figure 8 A schematic diagram of the structure of a working sliding wheel group provided in an embodiment of the present invention;

[0024] Fig. 9 A schematic diagram of the connection of the walking track beam provided in an embodiment of the present invention;

[0025] Fig.10 A schematic diagram of the connection between the force-bearing hanging ring and the operating platform hanging column provided in an embodiment of the present invention;

[0026] Fig.11 A schematic diagram of the lower corner connection of the operating cage provided in an embodiment of the present invention.

[0027] In the above drawings, the names of the components corresponding to the reference numerals are as follows: 1-working sliding beam, 11-travel track beam, 111-double-buckle track groove reinforcement plate, 112-lifting ear, 113-pin fixing plate, 114-upper connecting pin shaft; 12-track connecting beam; 13-travel wheel, 131-extended wheel axle, 132-wheel axle fixing plate; 14-working sliding wheel group, 141-working sliding wheel, 142-hanging plate, 143-pin-type wheel axle, 144-pin-type hanging bar, 145-manual lifting device, 2-operating platform hanging column, 21-upper connecting beam of the hanging column, 22-connecting beam at the bottom of hanging column, 23-cross tie rod, 24-pin type tie rod, 25-pin sleeve, 26-horizontal tie rod, 3-platform load beam, 31-scaffolding limit plate, 32-light steel scaffolding, 33-bottom connecting pin, 4-cage hanging ring structure, 41-load hanging ring, 42-hanging ring load-bearing stop rod, 421-operating cage auxiliary hanging ring, 422-anti-slip limit plate; 43-local stiffening plate, 431-axillary anti-bending stiffening plate, 432-anti-pulling stiffening plate, 433-anti-channel steel deformation stiffening plate, 6-cap beam, 7-stopper. DETAILED DESCRIPTION

[0028] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to be able to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that, in the absence of conflict, the embodiments of the present invention and the features described in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0029] See also Figure 1-10 As shown, an embodiment of the present invention provides a cap beam prestressed high-altitude tensioning operation cage, comprising: a square main body, a walking track beam 11 is respectively arranged on the two opposite sides of the upper part of the main body, the two walking track beams 11 are arranged relatively parallel in the horizontal direction, a working sliding beam 1 is arranged between the two walking track beams 11, the working sliding beam 1 is arranged in a direction perpendicular to the walking track beam 11, and translates along the setting direction of the walking track beam 11; a working sliding wheel group 14 is arranged on the working sliding beam 1, and the working sliding wheel group 14 translates along the setting direction of the working sliding beam 1; a cage hanging ring structure is arranged on the side of the main body parallel to the walking track beam, which is used to hang the main body on the block 7 of the cap beam 6.

[0030] Specifically, the working sliding beam 1 includes two channel steels and two running wheels 13, the opening directions of the two channel steels are arranged opposite to each other, and the working sliding wheel set 14 is clamped between the two channel steels; a running wheel 13 is respectively arranged at the two ends of the channel steel, and the running wheel 13 is arranged in a direction perpendicular to the channel steel shape, and the running wheel 13 is clamped in the running track beam 11. Specifically, the two channel steels are arranged side by side in the vertical direction, the opening directions of the two channel steels are opposite to each other, and a preset spacing is maintained between the two channel steels.

[0031] Specifically, the working sliding beam 1 also includes an extended wheel axle 131 and an axle fixing plate 132. The wheel axle fixing plate 132 is arranged in the vertical direction, and one side of the wheel axle fixing plate 132 is connected to the ends of the two channel steels; the extended wheel axle 131 is arranged in the horizontal direction, one end of which is connected to the other side of the wheel axle fixing plate 132, and the other end is connected to the walking wheel 13.

[0032] Specifically, an operating platform hanging column 2 is respectively arranged at the lower side of both ends of each of the walking track beams 11, and the operating platform hanging column 2 is arranged along the vertical direction.

[0033] Specifically, the cage hanging ring structure 4 includes a force-bearing hanging ring 41 and a hanging ring load-bearing stop rod 42. One side of the force-bearing hanging ring 41 is connected to the operating platform hanging column 2, and the hanging ring load-bearing stop rod 42 is connected to the other side of the force-bearing hanging ring 41. A preset distance is maintained between the hanging ring load-bearing stop rod 42 and the operating platform hanging column 2.

[0034] Specifically, the working sliding wheel group 14 includes a working sliding wheel 141, a hanging plate 142, a pin-type wheel axle 143 and a pin-type hanging rod 144. The working sliding wheel 141 is clamped between the two channel steels, and the two hanging plates 142 are respectively arranged on both sides of the channel steel. The pin-type wheel axle 143 is passed through the working sliding wheel 141, and the two ends of the pin-type wheel axle 143 are respectively connected to the upper part of one of the hanging plates 142, and the two ends of the pin-type hanging rod 144 are respectively connected to the lower part of one of the hanging plates 142. A channel steel is arranged between the pin-type wheel axle 143 and the pin-type hanging rod 144, and the pin-type hanging rod 144 is used to hang a manual lifting device 145.

[0035] Specifically, the ends of the two walking track beams 11 on the same side are respectively connected by a track connecting beam 12. An operating platform hanging column 2 is respectively arranged at the lower side of the two ends of the two walking track beams 11, and the operating platform hanging column 2 is arranged along the vertical direction.

[0036] Specifically, a plurality of latch sleeves 25 are evenly arranged on the operating platform hanging column 2, and the latch sleeves 25 on two adjacent operating platform hanging columns 2 are connected by a latch-type tie rod 24 arranged in the horizontal direction, and the latch-type tie rod 24 is arranged directly below the walking track beam 11.

[0037] Specifically, a lifting lug 112 is respectively disposed at the four corners of the upper portion of the body.

[0038] In specific implementation, the cap beam prestressed high-altitude tensioning operation cage includes a working sliding beam 1, and running wheels 13 are fixed at both ends of the working sliding beam 1, and the running wheels are connected to the wheel axle fixing plate 132 through an extended wheel axle 131. The working sliding beam 1 is composed of double buckles of channel steel.

[0039] Specifically, the channel steels of the working sliding beam 1 are arranged in parallel and buckled, and the two ends are connected to the inner side of the axle fixing plate 132. The net height of the double buckle channel steel groove of the working sliding beam 1 is 1-2 cm higher than the outer diameter of the working sliding wheel 141. Grease is applied to the groove to ensure the smooth movement of the heavy sliding wheel during the working process. The walking wheel 13 uses deep groove ball bearings, and the bearings are arranged in double rows in parallel with an appropriate distance in the middle. One end of the extended axle 131 is passed through the two bearing axes to fix; a reinforcing steel plate is arranged vertically along the axis at the other end of the extended axle 131. After the reinforcing steel plate is fully welded to the axle fixing plate 132, a hole is dug and fixed to the other end of the extended axle 131 by plug welding. The extended axle 131 uses a solid steel rod, and the diameter is determined according to the actual force calculation and the center diameter of the bearing. The reinforcing steel plate and the hole plug welding of the walking wheel bearing can enhance the bending and shearing capacity of the axle end. The above-mentioned running wheels 13 , lengthened wheel axles 131 , reinforced steel plates and wheel axle fixing plates 132 are symmetrically arranged at both ends of the working sliding beam 1 .

[0040] Specifically, the double-buckle channel steel of the sliding beam 1 has a working sliding wheel set 14 arranged in the channel.

[0041] Specifically, in the working sliding wheel assembly 14, the working sliding wheel 141 is made of the same material and method as the walking wheel 13, and is fixed by a pin-type wheel axle 143. The pin-type wheel axle 143 is made of solid steel rod material, and the diameter is determined according to the actual force calculation and the center hole diameter of the bearing. A limit plate is set at each end of the pin-type wheel axle 143 that exceeds the width of the working sliding beam 1, which is used to control the effective net distance between the two hanging plates 142. A hole is drilled at the upper end of the hanging plate 142 and is sleeved on both ends of the pin-type wheel axle 143; after the hanging plate 142 is installed in place, a gasket is put on the pin-type wheel axle 143 and fixed with a pin; a hole is opened in the center of the lower end of the hanging plates 142 on both sides, and a pin-type hanging bar 144 is inserted. The method of the pin-type hanging bar 144 is the same as that of the pin-type wheel axle 143.

[0042] Specifically, before the interlocking channel steels of the working sliding beam 1 are connected using the wheel axle fixing plates 132 at both ends, the working sliding wheel 141 needs to be placed in the interlocking groove first, and the net distance between the upper and lower channel steels of the sliding beam 1 is adjusted before fixing the two ends of the sliding beam.

[0043] Specifically, when selecting the material model of the working sliding beam 1, the specification model of the channel steel should be determined according to the weight of the equipment used to hang the beam and the working width required by the operating surface, so as to avoid a mismatch between the length of the sliding beam and the force ratio, which would cause the working sliding wheel group 14 to slide back and forth under load, causing the sliding beam 1 to flex and deform, and even causing the risk of the sliding wheel group 14 falling off.

[0044] Specifically, a track beam 11 is provided at each of the two ends (i.e., the front and rear ends) of the working sliding beam 1 for the sliding beam 1 to move left and right. The front and rear two moving track beams 11 are made of the same manufacturing principle and material.

[0045] Specifically, the walking track beam 11 adopts double buckle channel steel, the net height in the buckle groove is 1 to 2 cm higher than the outer diameter of the walking wheel 13, and butter is applied inside the groove to ensure the smooth movement of the walking wheel 13 during work.

[0046] Specifically, the double buckle channel steel of the walking track beam 11 takes into account the long distance that the working sliding beam 1 travels in the left and right directions. The double buckle track groove reinforcement plates 111 are evenly arranged at 30cm intervals on the outer side thereof by calculation, so as to meet the stability of the working sliding beam 1 when walking left and right under the load, and avoid the danger of the track being too long, causing downward deflection when working with load, or even derailment of the working sliding beam 1. The double buckle track groove reinforcement plates 111 are used to connect the upper and lower double buckle channel steels into one, so that the track forms a spatial structure and improves the force stability.

[0047] Specifically, the two running track beams 11 need to be absolutely parallel and arranged horizontally, and the front and rear running tracks are fixed by the track connecting beams 12 on the left and right sides of the track beams.

[0048] Specifically, the track connecting beam 12 is arranged on the upper part of the left and right sides of the walking track beam 11 and is welded and fixed so that the two track beams always remain parallel and horizontal.

[0049] Specifically, the working sliding beam 1 and the walking track beam 11 are integrally formed into a rectangular frame-type upper bidirectional track beam system through the track connecting beam 12, thereby further improving the overall force stability and safety of the upper track during operation.

[0050] Specifically, the two ends of the walking track beam 11 are connected to the upper end of the operating platform hanging column 2 through pins. Pin fixing plates 113 are set at both ends of the walking track beam 11, and holes are mechanically machined on the pin fixing plates to evenly arrange two pin insertion holes. The size of the pin fixing plate 113 is equal to the cross-sectional size of the walking track 11, and it is fully welded around and fixed to the end faces of the left and right walking tracks 11.

[0051] Specifically, before the pin fixing plate 113 and the end surface of the traveling track 11 are connected and fixed, the traveling wheels 13 at both ends of the working sliding beam 1 are firstly embedded into the buckle grooves of the traveling track 11, and then greased and debugged.

[0052] Specifically, four lifting lugs 112 are symmetrically arranged at the four corners of the upper bidirectional track beam system of the rectangular frame type (i.e., the two ends of the two left and right walking track beams). The lifting lugs 112 are made of steel plates cut and fixed as a whole, and are used for lifting the whole operating cage during short-distance transportation or installation and removal.

[0053] Specifically, the operating platform hanging column 2 is made of channel steel, and a pin connection hole is provided at the upper end of the operating platform hanging column 2, which is connected to the upper track beam system through an upper connecting pin shaft 114.

[0054] Specifically, in order to ensure the stability of the force and safety and reliability of the operating cage as a whole during operation, two connecting beams are arranged longitudinally on the left and right sides of the operating cage, one on the top and one on the bottom, to connect and fix the front and rear hanging columns of the operating platform to form a whole.

[0055] Specifically, the upper connecting beam 21 of the column is located at the upper part of the single-side (left or right) operating platform column 2, and is welded and fixed to the operating platform column 2; the lower connecting beam 22 of the column is located at the lower part of the single-side (left or right) operating platform column 2, and is welded and fixed to the operating platform column 2. The upper connecting beam 21 of the column and the lower connecting beam 22 of the column are made of the same model, material and length, and the parallelism of the operating platform column 2 is ensured before fixing, so that the rectangular frame structure of the platform column is formed on the left and right sides of the operating cage.

[0056] Specifically, in the rectangular frame structure of the platform hanging columns formed on the left and right sides of the operating cage, horizontal tie rods 26 are evenly arranged along the vertical direction. The horizontal tie rods 26 are perforated and plug-welded to the operating platform hanging columns 2. At the same time, the horizontal tie rods also serve as side protective railings. The material is a seamless steel pipe with an outer diameter of 25 mm, and the spacing is reasonably arranged according to the height of the cage. However, considering the safety of construction operations, it cannot exceed 50 cm.

[0057] Specifically, in the rectangular frame structure of the platform column formed on the left and right sides of the operating cage, cross tie rods 23 are set diagonally in the upper and lower parts to offset the torsion generated by the cage under load, and to improve the longitudinal torsional deformation resistance under the working stress state of the cage; the cross tie rods 23 and the bottom corners of the rectangular frame structure of the platform column are movably connected by tie rod connecting pins 24. The cross tie rods 23 are also made of seamless steel pipes with an outer diameter of 25 mm. The fixing plate of the tie rod connecting pin 24 is welded in the inner angle between the operating platform column 2 and the connecting beam 22 at the lower part of the column.

[0058] Specifically, the cage body hanging ring structure 4 is the main force bearing structure of the entire operation cage, and needs to be effectively connected to the adjacent structure (cap beam) to meet the requirements of fixing the operation cage at high altitude. Therefore, the force-bearing hanging ring 41 in the cage body hanging ring structure 4 fully utilizes the stability of the rectangular frame structure of the platform hanging columns on the left and right sides of the operation cage, and is fixed to the rectangular frame structure of the platform hanging columns on the left and right sides of the operation cage as a whole.

[0059] Specifically, the load-bearing hanging ring 41 is a load-bearing component made of hot-rolled round steel bars with a diameter of 40 mm and bent into a 60° radius.

[0060] Specifically, the force-bearing hanging ring 41 is arranged coaxially with the rectangular frame structure of the platform hanging column on the left and right sides, and the upper horizontal end of the single-sided force-bearing hanging ring 41 passes through the front and rear hanging columns of the single-sided operating platform and is fixed; the lower oblique end of the single-sided force-bearing hanging ring 41 passes through the front hanging column of the single-sided operating platform and is fixed.

[0061] Specifically, local stiffening plates 43 are provided at each connection point between the upper horizontal end and the lower oblique end of the force-bearing hanging ring 41 and the operating platform hanging column, so as to ensure that the main force-bearing points on the cage body will not deform or bend when the cage body hanging ring structure 4 bears the load of the entire cage body, thereby ensuring construction quality and operation safety.

[0062] Specifically, the local stiffening plate 43 is composed of a stiffening plate 433 for preventing deformation of the channel steel arranged vertically inside the column channel steel, a stiffening plate 432 for resisting pull-out arranged coaxially with the force-bearing hanging ring 41 behind the column channel steel, and a stiffening plate 431 for resisting bending at an angle perpendicular to the hanging ring and the column in front of the column channel steel.

[0063] Specifically, the force-bearing hanging ring 41 is fixed to the adjacent cap beam stopper through the hanging ring load-bearing stop rod 42 .

[0064] Specifically, the hanging ring load-bearing stop rod 42 horizontally passes through the load-bearing hanging rings 41 on the left and right sides of the operating cage, and hangs the operating cage on the side of the cap beam stop block.

[0065] Specifically, an operating cage auxiliary hanging ring 421 is set on the hanging ring load-bearing stop rod 42, which is used to connect the operating cage auxiliary hanging ring 421 and the four lifting ears 112 on the operating cage from the top of the cap beam using a lifting soft belt and a clamp during the construction process, thereby playing a role similar to a backpack strap, assisting in strengthening the safety and stability of the operating cage and improving the safety control of high-altitude tensioning operations.

[0066] Specifically, an anti-slip limit plate 422 is provided at each end of the hanging ring load-bearing stop rod 42 to prevent the hanging ring load-bearing stop rod from falling due to shaking and sliding during the construction process, thereby preventing a major safety hazard.

[0067] Specifically, two platform load-bearing beams 3 are arranged at the lower end of the operating platform hanging column 2. The two load-bearing beams 3 are respectively connected to the rectangular frame structure footings of the platform hanging column on the left and right sides of the operating cage, and the two load-bearing beams are parallel to each other.

[0068] Specifically, a light steel scaffolding board 32 is fully laid between the two load-bearing beams 3, and both ends of the scaffolding board are placed on the load-bearing beams 3 of the operating platform.

[0069] Specifically, a scaffolding limit plate 31 is arranged outside the two load-bearing beams 3; the height of the scaffolding limit plate is twice that of the steel scaffolding 32, and it acts as a footboard. The length of the light steel scaffolding 32 needs to be just enough to fit between the scaffolding limit plates.

[0070] Specifically, a pin fixing plate is set on the end faces of the two load-bearing beams 3. The size of the pin fixing plate is the same as the cross-sectional size of the load-bearing beams 3. A bottom connecting pin shaft 33 is set on the pin fixing plate. The bottom connecting pin shaft 33 passes through the connecting hole at the lower end of the operating platform hanging column 2. A gasket is added on the outside and fixed with a pin.

[0071] Specifically, the load-bearing beam 3 is connected to the operating platform hanging column 2, and a light steel scaffolding board 32 is fully laid between the two load-bearing beams, and a scaffolding board limit plate 31 is set, so as to finally form a construction operating platform.

[0072] Specifically, on the front and back of the operating cage, latch-type tie rods 24 are evenly and symmetrically arranged transversely, and also serve as guardrails. The rods are made of seamless steel pipes with an outer diameter of 25 mm, and both ends are mechanically cold-bent into 90° hooks, and latch sleeves 25 are correspondingly arranged on the hanging columns on the left and right sides.

[0073] What needs to be specially explained in the present embodiment is that, the construction measures and methods for tensioning the cap beam prestress in a high-altitude environment mainly involve the cap beam prestressing high-altitude tensioning operation cage, and the selection of all the load-bearing beams and rods have fully considered and calculated the construction load factors. For example, in the early stage of the implementation of the present invention, it is comprehensively considered that there are 2 construction operators in the cage, and the total weight does not exceed 180kg; a tensioning jack weighs 180kg; the calculation results are formed after considering factors such as dynamic load, material bending and torsional properties, and finally the materials are selected according to the calculation results as follows: the operating platform hanging column 2 and the platform load-bearing beam 3 adopt 50-type channel steel; the sliding working beam 1 and the walking track beam 11 adopt 60-type channel steel; the remaining tensioning rods are all made of seamless steel pipes with an outer diameter of 25mm; the bottom plate of the operating platform adopts a light steel scaffolding board; the load hanging ring 41 adopts a hot-rolled smooth round steel bar with a diameter of 40mm. During the construction process, the equipment and operators selected in the operating cage need to be strictly matched with the calculations. The purpose of this is to minimize the deadweight of the operating cage according to the needs of the actual construction environment, further improve the safety and stability of the force-bearing hanging ring 41 and the overall operating cage, and enable the rapid installation and turnover of the operating cage to be easily achieved.

[0074] The construction measures and methods for tensioning the prestressed structure of the cap beam of this embodiment in a high-altitude environment are as follows: during construction, the upper bidirectional track beam system of the operating cage, the rectangular frame structure of the platform hanging columns on both sides, the platform load-bearing beams, steel light scaffolding boards, tie rods (guardrails) and other components are first transported to the site, assembled into a cage body by workers, and then delivered to the construction work surface by a crane, and then the operating cage body is hung on the block of the cap beam using the hanging ring load-bearing stop rod 42. The operator enters the operating cage, hangs the manual lifting device 145 (usually a hand winch) on the pin-type hanging rod 144, and then hangs the jack and other tensioning equipment on the manual lifting device 145 (usually a hand winch); according to the several bundles of prestressed forces to be tensioned arranged on the side of the cap beam, according to the tensioning sequence required by the design, the position of the sliding beam 1 is adjusted left and right through the walking track beam 11, and then the working sliding wheel group 14 on the sliding beam 1 is used to move forward and backward, and the prestressing construction is completed by the cooperation of the manual lifting device 145 (usually a hand winch). During the construction process, in order to fully ensure the safety of the high altitude and the stability of the operating cage, after the cage body is hung in place, the two ends of the canvas lifting soft belt are connected to the auxiliary hanging ring 421 and the four lifting ears 112 of the operating cage with clamps, and the canvas lifting soft belt crosses over the top of the cap beam, similar to a "schoolbag strap". After the construction is completed, the operating cage can be directly transferred to the nearest site using a crane or tower crane, or it can be hoisted to the ground and disassembled by workers to achieve long-distance transfer.

[0075] The construction measures and methods for the cap beam prestressing in the high-altitude environment are very effectively solved by inventing the cap beam prestressing high-altitude tensioning operation cage, which effectively solves the constraints of the high-altitude environment, the lack of a safe and stable operating platform for construction personnel, the inability to accurately move the heavy jack equipment, the long-term occupation of the lifting equipment during construction, and the time-consuming and labor-intensive construction of the traditional high-altitude construction platform. In addition, the main load-bearing components in the invention are connected by fixed welding, and the fixed components are connected by pin assembly, which further improves the safety and stability of the cage and the rapid installation and disassembly turnover; the invention of the sliding beam and sliding wheel group also well realizes that a small number of workers can complete the flexible movement of the heavy jack in the effective space, further realizing the cost-reducing, efficiency-increasing, safe and reliable high-altitude prestressing tensioning construction requirements.

[0076] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A cap beam prestressed high-altitude tensioning operation cage, characterized in that: include: A square body, wherein two sides of the upper part of the body are provided with a walking track beam respectively, the two walking track beams are arranged relatively parallel in the horizontal direction, a working sliding beam is arranged between the two walking track beams, the working sliding beam is arranged in a direction perpendicular to the walking track beams, and translates along the setting direction of the walking track beams; The working sliding beam is provided with a working sliding wheel group, and the working sliding wheel group translates along the setting direction of the working sliding beam; The side of the main body parallel to the walking track beam is provided with a cage hanging ring structure for hanging the main body on the stopper of the cap beam; The working sliding beam comprises two channel steels and two running wheels, the opening directions of the two channel steels are arranged opposite to each other, and the working sliding wheel set is clamped between the two channel steels; a running wheel is respectively arranged at the two ends of the channel steel, the running wheel is arranged in a direction perpendicular to the channel steel shape, and the running wheel is clamped in the running track beam; the two channel steels are arranged side by side in the vertical direction, the opening directions of the two channel steels are opposite to each other, and a preset spacing is maintained between the two channel steels; The working sliding beam also includes an extended wheel axle and an axle fixing plate, wherein the axle fixing plate is arranged in a vertical direction, and one side of the axle fixing plate is connected to the ends of the two channel steels; the extended wheel axle is arranged in a horizontal direction, one end of which is connected to the other side of the axle fixing plate, and the other end is connected to the walking wheel; An operating platform hanging column is respectively arranged at the lower side of the two ends of each of the walking track beams, and the operating platform hanging column is arranged in the vertical direction; The cage body hanging ring structure includes a force-bearing hanging ring and a hanging ring load-bearing stop rod, one side of the force-bearing hanging ring is connected to the operating platform hanging column, and the hanging ring load-bearing stop rod is connected to the other side of the force-bearing hanging ring, and a preset distance is maintained between the hanging ring load-bearing stop rod and the operating platform hanging column; The working sliding wheel group includes a working sliding wheel, a hanging plate, a pin-type wheel axle and a pin-type hanging bar, the working sliding wheel is clamped between the two channel steels, the two hanging plates are respectively arranged on both sides of the channel steel, the pin-type wheel axle is passed through the working sliding wheel, the two ends of the pin-type wheel axle are respectively connected to the upper part of one of the hanging plates, the two ends of the pin-type hanging bar are respectively connected to the lower part of one of the hanging plates, a channel steel is arranged between the pin-type wheel axle and the pin-type hanging bar, and the pin-type hanging bar is used to hang a manual lifting device; The ends of the two walking track beams on the same side are respectively connected by a track connecting beam; A plurality of latch sleeves are evenly arranged on the operating platform hanging column, and the latch sleeves on two adjacent operating platform hanging columns are connected by a latch-type tie rod arranged in a horizontal direction, and the latch-type tie rod is arranged directly below the walking track beam; A lifting lug is respectively arranged at the four corners of the upper part of the main body.

Images