A pier bent cap climbing installation device

Abstract

The application provides a pier cap beam climbing installation device, which comprises a frame platform, a through hole for the pier to pass through is arranged on the frame platform, the upper surface of the frame platform has a first area and a second area, a climbing mechanism is arranged outside the pier and is connected with the frame platform, and the climbing mechanism is used for driving the frame platform to move up and down along the pier, a translation mechanism is arranged on the first area and the second area of the frame platform, the translation mechanism is used for placing a cap beam steel reinforcement cage and moving the cap beam steel reinforcement cage from the first area to the second area, and a control system is connected with the climbing mechanism and the translation mechanism. The pier cap beam climbing installation device realizes the assembly of the cap beam support, the formwork and the steel reinforcement cage on the ground, basically eliminates the safety hazards of high-altitude hoisting operation, is safe and reliable, saves energy, has high progress benefit and saves a large amount of construction cost.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of bent cap construction, and particularly relates to a bridge pier bent cap climbing installation device. BACKGROUND

[0002] The bridge bent cap construction is basically as follows: after the bridge pier construction is completed, hoops or insertion pins are installed at the corresponding positions on the top of the bridge pier, the hoops or the insertion pins are used as supports to install a frame platform, a bent cap bottom formwork and a bent cap steel reinforcement framework are installed on the platform or are integrally hoisted, bent cap side formworks are hoisted, bent cap concrete is poured, after the strength is reached, the bent cap side formworks are removed in situ at a high altitude, the bent cap bottom formwork is removed after unloading, the frame platform is removed, and finally the hoops or the insertion pins are removed. However, the construction process has many high-altitude operations and consumes crane shifts, has great safety hazards, is not energy-saving, and has high construction cost. SUMMARY

[0003] The present application aims to provide a bridge pier bent cap climbing installation device, which realizes ground assembly of a bent cap support, a formwork and a steel reinforcement framework, basically eliminates safety hazards of high-altitude hoisting operations, is safe and reliable, energy-saving, has high progress benefits, and saves a large amount of construction cost.

[0004] The present application is achieved by the following technical solutions:

[0005] A bridge pier bent cap climbing installation device comprises:

[0006] A frame platform, the frame platform is provided with a through hole through which the bridge pier passes, and the upper surface of the frame platform has a first area and a second area;

[0007] A climbing mechanism, the climbing mechanism is arranged outside the bridge pier and is connected with the frame platform, and is used to drive the frame platform to move up and down along the bridge pier;

[0008] A translation mechanism, the translation mechanism is arranged on the first area and the second area of the frame platform, and is used to place a bent cap steel reinforcement framework and move the bent cap steel reinforcement framework from the first area to the second area;

[0009] A control system, the control system is connected with the climbing mechanism and the translation mechanism.

[0010] Further, the template mechanism comprises three fixed template assemblies, two movable base molds and two end molds, the three fixed template assemblies are arranged on the frame platform in the transverse direction at intervals, and installation spaces for the movable base molds are formed between the adjacent two fixed template assemblies, the fixed template assembly comprises a fixed base mold, two side molds and two turning pull jacks, the fixed base mold is fixed on the second region of the frame platform, the two side molds are respectively hinged to the two ends of the fixed base mold in the longitudinal direction, the oil cylinders of the two turning pull jacks are respectively hinged to the two ends of the frame platform in the longitudinal direction, the piston rods of the turning pull jacks are respectively hinged to the two side molds, the two movable base molds are movably arranged in the two installation spaces and are arranged on the translation mechanism, the movable base mold is provided with a skeleton support pad, the two end molds are respectively arranged on the fixed base molds of the two fixed template assemblies located on the outer side, and the control system is connected with the turning pull jack.

[0011] Further, the upper surface of the frame platform is provided with two balance beams at intervals, the translation mechanism comprises two screw rod mechanisms arranged in the two balance beams respectively, the screw rod mechanism comprises two bearing seats arranged at intervals, a screw rod main shaft arranged on the two bearing seats, two screw rod sleeves arranged at intervals and matched with the screw rod main shaft, and a driving unit for driving the screw rod main shaft to rotate, the balance beam is provided with a sliding groove for the movement of the screw rod sleeve, the two movable base molds correspond to the two screw rod mechanisms one by one, and the movable base mold is arranged on the two screw rod sleeves of the corresponding screw rod mechanism.

[0012] Further, the balance counterweight tensioner comprises a mounting frame, a fixed shaft, a reel, a first spring, a tension rope, a friction assembly and an adjusting nut, the fixed shaft is fixed on the mounting frame, the reel, the friction assembly, the first spring and the adjusting nut are all sleeved on the fixed shaft, the friction assembly is in the shape of a circular truncated cone, one end of the reel is provided with a circular truncated cone hole matched with the friction assembly, the friction assembly is inserted into the circular truncated cone hole, the two ends of the first spring are respectively abutted with the friction assembly and the adjusting nut, the adjusting nut is threadedly connected with the fixed shaft, the pressure of the first spring on the friction assembly can be adjusted by rotating the adjusting nut, so as to adjust the friction force between the friction assembly and the reel and the fixed shaft, one end of the tension rope is fixed on the reel, and the other end is connected with one end of the frame platform away from the first region.

[0013] Further, the climbing mechanism comprises two hoop assemblies vertically and spacedly sleeved on the pier and used for clamping or loosening the pier, the upper hoop assembly is connected with the frame platform, and the lower hoop assembly is provided with a plurality of climbing jacks at intervals, the piston rod of the climbing jack is connected with the frame platform.

[0014] Further, the upper hoop assembly is provided with a plurality of hangers and a plurality of unloading sand boxes, the frame platform is respectively provided with a plurality of adjusting through holes through which the plurality of hangers pass, the hangers are threadedly connected with lifting nuts after passing through the corresponding adjusting through holes, and the top end of the unloading sand box abuts against the frame platform.

[0015] Further, the hoop assembly comprises a first template block, a second template block, a third template block, a tension jack, a pull rod and a second spring, the first template block, the second template block and the third template block are hingedly connected in sequence and all have an arc shape, a first lug plate is arranged on one end of the first template block close to the third template block, a second lug plate is arranged on one end of the third template block close to the first template block, the tension jack is arranged on the first lug plate, the pull rod is sequentially threaded through the tension jack and the first lug plate and then connected with the second lug plate, and the second spring is arranged between the first lug plate and the second lug plate and sleeved on the pull rod.

[0016] Further, the hoop assembly comprises a first template block, a second template block, a third template block, a tension jack, a pull rod and a second spring, the first template block, the second template block and the third template block are hingedly connected in sequence and all have an arc shape, a first lug plate is arranged on one end of the first template block close to the third template block, a second lug plate is arranged on one end of the third template block close to the first template block, the tension jack is arranged on the first lug plate, the pull rod is sequentially threaded through the tension jack and the first lug plate and then connected with the second lug plate, and the second spring is arranged between the first lug plate and the second lug plate and sleeved on the pull rod.

[0017] Further, a guide limiter is arranged on the side wall of the through hole away from the first area, and the guide limiter comprises a roller and an elastic assembly connected with the roller and used for abutting the roller against the pier.

[0018] Further, a ladder is arranged on the frame platform, and the ladder is composed of a plurality of ladder segments.

[0019] Compared with the prior art, the beneficial effects of the present application are as follows: the frame platform and the formwork of the bent cap are erected on the ground, the bent cap reinforcement frame is installed on the frame platform, is climbed to the top of the pier through the climbing mechanism, and is then horizontally moved to the designed horizontal position through the horizontal moving mechanism, so that the bent cap reinforcement frame is synchronously climbed, the problems of difficult overall hoisting, dispersed hoisting, high labor cost, time-consuming and many safety hazards are solved, after the bent cap is poured with concrete and is completed, the frame platform of the bent cap can be returned to the ground through the climbing mechanism and then is removed, all original high-altitude operations are converted into ground operations, safety hazards are eliminated, safety is more controllable, the working environment of the construction personnel is greatly improved, work efficiency is improved, a large number of crane use shifts are reduced, a large amount of cost and energy consumption is saved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 FIG. 1 is a structural schematic view of a pier bent cap climbing installation device of the present application;

[0021] Figure 2 FIG. 2 is a side view of the pier bent cap climbing installation device of the present application;

[0022] Figure 3 FIG. 3 is a top view of the frame platform in the pier bent cap climbing installation device of the present application;

[0023] Figure 4Front view of formwork mechanism installed on frame platform in bridge pier cap beam climbing installation device of the application;

[0024] Figure 5 Sectional view of formwork mechanism installed on frame platform in bridge pier cap beam climbing installation device of the application;

[0025] Figure 6 Schematic view of side formwork after installation in bridge pier cap beam climbing installation device of the application;

[0026] Figure 7 Structure schematic view of translation mechanism in bridge pier cap beam climbing installation device of the application;

[0027] Figure 8 Structure schematic view of balance beam in bridge pier cap beam climbing installation device of the application;

[0028] Figure 9 Structure schematic view of balance weight tensioner in bridge pier cap beam climbing installation device of the application;

[0029] Figure 10 Structure schematic view of climbing mechanism in bridge pier cap beam climbing installation device of the application;

[0030] Figure 11 Plan view of hoop assembly located below in bridge pier cap beam climbing installation device of the application;

[0031] Figure 12 Structure schematic view of unloading sand box in bridge pier cap beam climbing installation device of the application;

[0032] Figure 13 Side view of guide limiter in bridge pier cap beam climbing installation device of the application;

[0033] Figure 14 Plan view of guide limiter in bridge pier cap beam climbing installation device of the application.

[0034] In the figure, 1-frame platform, 11-pass through hole, 12-balance beam, 121-slotted, 2-climbing mechanism, 21-hoop assembly, 211-first template block, 212-second template block, 213-third template block, 214-tensioning jack, 215-second spring, 216-first ear plate, 217-second ear plate, 218-tension rod, 22-climbing jack, 23-hoisting rod, 24-unloading sand box, 241-sand box piston, 242-sand box cylinder, 243-fine sand, 244-sand discharge valve, 245-sand filling valve, 246-bleed valve, 25-hoisting nut, 3-translation mechanism, 31-bearing seat, 32-screw spindle, 33-screw shaft sleeve, 34-driving unit, 4-control system, 5-formwork mechanism, 51-fixed bottom die, 52-side die, 53-movable bottom die, 54-turning and pulling jack, 55-skeleton support pad, 56-end die, 6-balance counterweight tensioner, 61-mounting frame, 62-fixed shaft, 63-reel, 64-first spring, 65-tensioning rope, 66-friction assembly, 67-adjusting nut, 7-guiding position limiter, 71-roller, 72-elastic assembly, 721-horizontal plate, 722-vertical plate, 723-roller support, 724-third spring, 8-climbing ladder, 9-locking assembly, 91-locking bolt, 92-locking nut, 10-pier, 20-capped beam steel reinforcement cage. DETAILED DESCRIPTION

[0035] In order to make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0036] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work are within the scope of protection of the present application.

[0037] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. Meanwhile, in the description of the present application, the terms "first", "second", etc. are only used for distinguishing description, and cannot be understood as indicating or implying relative importance.

[0038] It is to be understood that the terminology used herein such as first and second, and the like, is only intended to distinguish one entity or action from another entity or action, and is not intended to imply a required order of, or a sequence of, such entities or actions. Further, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the presence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0039] In the description of the application, it should be noted that the terms "upper", "lower", "inner", "outer", and the like, indicate the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the application is usually placed, only for the convenience of describing the application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application.

[0040] Please refer to Figure 1 , Figure 2 and Figure 3 , Figure 1 is a structural schematic view of a pier cap beam climbing installation device of the application, Figure 2 is a side view of the pier cap beam climbing installation device of the application, Figure 3 is a top view of a frame platform in the pier cap beam climbing installation device of the application. A pier cap beam climbing installation device comprises a frame platform 1, a climbing mechanism 2, a translation mechanism 3 and a control system 4, the frame platform 1 is provided with a through hole for a pier 10 to pass through, the upper surface of the frame platform 1 has a first area and a second area; the climbing mechanism 2 is arranged outside the pier 10 and connected with the frame platform 1, and is used for driving the frame platform 1 to move up and down along the pier 10; the translation mechanism 3 is arranged on the first area and the second area of the frame platform 1, and is used for placing a cap beam reinforcement framework 20 and moving the cap beam reinforcement framework 20 from the first area to the second area; the control system 4 is connected with the climbing mechanism 2 and the translation mechanism 3.

[0041] The pier cap beam climbing installation device of the application is used for Figure 1The two through holes are respectively for the two bridge piers 10 to pass through, and the climbing mechanism 2 is provided with two and is respectively installed on the two bridge piers 10. However, the content of the present application is not limited to this embodiment, and the structure can be changed according to the number of the bridge piers 10, and the number of the through holes and the climbing mechanism 2 can be increased or decreased according to the specific disclosure. The frame platform 1 is used as a construction platform and is used for supporting the roof beam steel framework 20 and pouring the roof beam. The second area of the upper surface of the frame platform 1 is the middle area, and the through hole is located in the second area, such as the A area shown in Figure 3 The first area of the upper surface of the frame platform 1 is located on one side of the second area, such as the B area shown in Figure 3 .

[0042] Please refer to Figure 4 , Figure 5 and Figure 6 , Figure 4 It is a front view of the formwork mechanism installed on the frame platform in the pier roof beam climbing installation device of the present application, Figure 5 It is a sectional view of the formwork mechanism installed on the frame platform in the pier roof beam climbing installation device of the present application, Figure 6It is a schematic view of the side form installation completed in the pier cap beam climbing installation device of the application. In an embodiment, in order to further reduce the hoisting construction, the pier cap beam climbing installation device of the application further comprises a formwork mechanism 5, the formwork mechanism 5 comprises three fixed formwork assemblies, two movable bottom forms 53 and two end forms 56, the three fixed formwork assemblies are respectively arranged on the frame platform 1 along the transverse direction of the bridge and are spaced apart, and the installation space for the movable bottom form 53 is formed between the adjacent two fixed formwork assemblies, the fixed formwork assembly comprises a fixed bottom form 51, two side forms 52 and two turning and pulling jacks 54, the fixed bottom form 51 is fixed on the second area of the frame platform 1, the two side forms 52 are respectively hinged on the two ends of the fixed bottom form 51 along the bridge direction, the oil cylinders of the two turning and pulling jacks 54 are respectively hinged on the two ends of the frame platform 1 along the bridge direction, the piston rods of the two turning and pulling jacks 54 are respectively hinged on the two side forms 52, the two movable bottom forms 53 are respectively movably arranged in the two installation spaces and are arranged on the translation mechanism 3, the movable bottom form 53 is provided with a framework support pad 55, the two end forms 56 are respectively installed on the fixed bottom forms of the two fixed formwork assemblies located on the outer side, and the control system 4 is connected with the turning and pulling jacks 54. The formwork mechanism 5 is designed integrally with the frame platform 1, and the hoisting of the formwork mechanism 5 is not required in the later period, which can further reduce the hoisting construction, and when the side form 52 is not used, it can be laid flat to be flush with the fixed bottom form 51, which does not affect the movement of the cap beam steel reinforcement framework 20 from the first area to the second area of the frame platform 1 by the translation mechanism 3. When the cap beam concrete needs to be poured, the control system 4 sends an instruction to the turning and pulling jacks 54 to control the turning and pulling jacks 54 to be lifted, drive the side form 52 to be turned up to the specified position, so that the side form 52 is in a vertical state and abuts against the fixed bottom form 51, and the side form 52 at the movable bottom form 53 is manually assembled, the installation of the side form 52 is completed, and the cap beam concrete is poured. In an embodiment, the turning and pulling jacks 54 are hinged with the frame platform 1 through a hinge seat, the hinge seat comprises a U-shaped mounting bracket, the U-shaped bottom of the mounting bracket is fixed on the frame platform 1, and the two side walls of the U-shaped mounting bracket are provided with hinge rods, the hinge rods are threadedly connected with the mounting bracket, the oil cylinder of the turning and pulling jack 54 is provided with an insertion slot for the insertion of the hinge rod, and the hinge rod is inserted into the corresponding insertion slot. The two hinge rods clamp the turning and pulling jack 54, so that the turning and pulling jack 54 can rotate on the mounting bracket, and the setting is easy to disassemble the turning and pulling jack 54.

[0043] Please refer to Figure 7 and Figure 8 , Figure 7 It is a structural schematic view of the translation mechanism in the pier cap beam climbing installation device of the application, Figure 8The structure diagram of the balance beam in the pier cap beam climbing installation device is shown in the figure. In an embodiment, two balance beams 12 are arranged on the upper surface of the frame platform 1 at intervals, the translation mechanism 3 comprises two screw rod mechanisms arranged in the two balance beams 12 respectively, the screw rod mechanism comprises two bearing seats 31 arranged at intervals, a screw rod main shaft 32 arranged on the two bearing seats 31, two screw rod shaft sleeves 33 arranged at intervals and matched with the screw rod main shaft 32, and a driving unit 34 for driving the screw rod main shaft 32 to rotate, the balance beam 12 is provided with a sliding groove 121 for the movement of the screw rod shaft sleeve 33, and two movable base molds 53 are correspondingly arranged on the two screw rod shaft sleeves 33 of the corresponding screw rod mechanism. The balance beam 12 is embedded in the frame platform 1, the upper surface of the balance beam 12 is flush with the upper surface of the frame platform 1, the bearing seat 31 is fixed in the balance beam 12, the driving unit 34 drives the screw rod main shaft 32 to rotate, drives the screw rod shaft sleeve 33 to move linearly along the sliding groove 121, and realizes the translation of the cap beam steel reinforcement cage 20 on the frame platform 1. In an embodiment, the power unit comprises a motor, a main gear and a slave gear, the main gear is arranged on the driving shaft of the motor, and the slave gear is arranged on the screw rod main shaft 32 and is engaged with the main gear. The driving end of the motor drives the screw rod main shaft 32 to rotate through the main gear and the slave gear.

[0044] Please refer to Figure 9 , Figure 9It is a structural schematic view of the counterweight tensioner in the pier cap beam climbing installation device of the application. In an embodiment, the pier cap beam climbing installation device of the application further comprises a counterweight tensioner 6, the counterweight tensioner 6 comprises a mounting frame 61, a fixed shaft 62, a reel 63, a first spring 64, a tension rope, a friction assembly 66 and an adjusting nut 67, the fixed shaft 62 is fixed on the mounting frame 61, the reel 63, the friction assembly 66, the first spring 64 and the adjusting nut 67 are all sleeved on the fixed shaft 62, the friction assembly 66 is in a circular table structure, one end of the reel 63 is provided with a circular table hole matched with the friction assembly 66, the friction assembly 66 is inserted into the circular table hole, the two ends of the first spring 64 respectively abut against the friction assembly 66 and the adjusting nut 67, the adjusting nut 67 is threadedly connected with the fixed shaft 62, the pressure of the first spring 64 on the friction assembly 66 can be adjusted by rotating the adjusting nut 67, so as to adjust the friction force between the friction assembly 66 and the reel 63 and the fixed shaft 62 respectively, one end of the tension rope is fixed on the reel 63, and the other end is connected with one end of the frame platform 1 away from the first area. When the cap beam reinforcement cage 20 is lifted to the top of the pier 10, the cap beam reinforcement cage 20 is located in the first area of the frame platform 1, so that the overall force of the frame platform 1 is uneven, the frame platform 1 is eccentrically side-pressed and is easy to be damaged, therefore, the counterweight tensioner 6 is added, the number of the counterweight tensioner 6 can be determined according to the actual working condition, preferably, the number of the counterweight tensioner 6 is two, and the two counterweight tensioners 6 are arranged at intervals. The tension rope is connected with one end of the frame platform 1 away from the first area, preferably, the tension ropes of the two counterweight tensioners 6 are respectively connected with two counterweight beams. After the counterweight tension is calculated, the adjusting nut 67 is rotated on the fixed shaft 62, the first spring 64 is compressed or relaxed through the adjusting nut 67, so as to increase or reduce the pressure of the first spring 64 on the friction assembly 66, and then increase or reduce the friction force between the friction assembly 66 and the reel 63 and the fixed shaft 62 respectively, so that the tension of the reel 63 on the tension rope reaches the calculated counterweight tension, and the force balance of the frame platform 1 during the lifting of the cap beam reinforcement cage 20 is realized. The length of the tension rope needs to be long enough, and the tension rope can be wound on the reel 63. In an embodiment, the friction assembly 66 is surrounded by a plurality of friction plates.

[0045] Please refer to Figure 10 、 Figure 11 and Figure 12 , Figure 10 It is a structural schematic view of the climbing mechanism in the pier cap beam climbing installation device of the application, Figure 11 It is a top view of the lower hoop assembly in the pier cap beam climbing installation device of the application, Figure 12The structure diagram of the unloading sand box in the pier cap beam climbing installation device of the application. In an embodiment, the climbing mechanism 2 comprises two hoop assemblies 21 which are vertically spaced and sleeved on the outside of the pier 10 and used for clamping or loosening the pier 10, the upper hoop assembly 21 is connected with the frame platform 1, and a plurality of climbing jacks 22 are arranged on the lower hoop assembly 21 in intervals, the piston rod of the climbing jack 22 is connected with the frame platform 1. By clamping or loosening the pier 10 in turn by the two hoop assemblies 21, the two hoop assemblies 21 are alternately used as a fulcrum in the climbing process, so that the support points of the frame platform 1 on the pier 10 can be converted to the two hoop assemblies 21 respectively, and then the climbing function of the frame platform 1 is completed by controlling the lifting and contraction of the climbing jacks 22. In an embodiment, a plurality of hangers 23 and a plurality of unloading sand boxes 24 are arranged on the upper hoop assembly 21, the frame platform 1 is respectively provided with adjusting through holes through which the hangers 23 pass, the hangers 23 are threadedly connected with lifting nuts 25 after passing through the corresponding adjusting through holes, and the top end of the unloading sand box 24 abuts against the frame platform 1. The arrangement of the hangers 23 and the unloading sand boxes 24 on the upper hoop assembly 21 can adjust the distance between the upper hoop assembly 21 and the frame platform 1. After pouring the cap beam concrete and the cap beam concrete reaches the set strength, the frame platform 1 is slowly lowered by the unloading sand box 24 until the fixed bottom die 51 and the movable bottom die 53 are separated from the cap beam concrete. In an embodiment, the unloading sand box 24 comprises a sand box piston 241 and a sand box cylinder 242 which is sleeved on the outside of the sand box piston 241, the sand box cylinder 242 is filled with fine sand 243, the bottom end of the sand box cylinder 242 is provided with a sand discharge valve 244, and the sand box piston is provided with a sand filling valve 245 and a gas release valve 246.

[0046] In an embodiment, the hoop assembly 21 comprises a first template block 211, a second template block 212, a third template block 213, a tension jack 214, a pull rod 218 and a second spring 215, the first template block 211, the second template block 212 and the third template block 213 are hingedly connected in sequence and all have an arc shape, the first template block 211 is provided with a first lug plate 216 on one end close to the third template block 213, the third template block 213 is provided with a second lug plate 217 on one end close to the first template block 211, the tension jack 214 is arranged on the first lug plate 216, the pull rod 218 is connected with the second lug plate 217 after sequentially penetrating through the tension jack 214 and the first lug plate 216, and the second spring 215 is located between the first lug plate 216 and the second lug plate 217 and is sleeved on the pull rod 218. The tension jack 214 is a through-type jack, when the tension jack 214 is extended, the first lug plate 216 and the second lug plate 217 are driven to move close to each other by the pull rod 218, so that the circular structure surrounded by the first template block 211, the second template block 212 and the third template block 213 is locked on the pier 10. When the tension jack 214 is retracted, the pull rod 218 is relaxed on the second lug plate 217, and the first lug plate 216 and the second lug plate 217 are driven to move away from each other by the second spring 215, so that the circular structure surrounded by the first template block 211, the second template block 212 and the third template block 213 is separated from the pier 10, at this time, the first template block 211, the second template block 212 and the third template block 213 can move relative to the pier 10. In an embodiment, one end of the pull rod 218 is provided with a first abutting nut abutting against a piston rod of the tension jack 214, and the other end sequentially penetrates through the tension jack 214, the second lug plate 216 and the second lug plate 217 and is connected with a second abutting nut. The piston rod of the tension jack 214 drives the pull rod 218 to move through the first abutting nut, and the pull rod 218 drives the second lug plate 217 to move through the second abutting nut.

[0047] In an embodiment, the pier bent cap climbing installation device further comprises a locking assembly 9, the locking assembly 9 comprises a plurality of locking bolts 91 and locking nuts 92 arranged on the locking bolts 91, and a plurality of locking through holes are formed in corresponding positions of the first lug plate 216 and the second lug plate 217 of the hoop assembly 21 located above for the plurality of locking bolts 91 to penetrate through, and the locking bolts 91 are connected with the locking nuts 92 after penetrating through the corresponding locking through holes, so as to lock the hoop assembly 21 located above on the pier 10. The locking bolts 91 and the locking nuts 92 are added on the hoop assembly 21 located above, which ensures that the locking of the hoop assembly 21 located above on the pier can reach the set locking force, thereby ensuring the construction safety on the frame platform 1.

[0048] Please refer to Figure 13 and Figure 14 , Figure 13A side view of the guide limiter in the pier cap beam climbing installation device of the present application, Figure 14 A plan view of the guide limiter in the pier cap beam climbing installation device of the present application. In an embodiment, a guide limiter 7 is arranged on the side wall of the through hole away from the first area, and the guide limiter 7 comprises a roller 71 and an elastic assembly 72 connected with the roller 71 for enabling the roller 71 to abut against the pier 10. Since the piers 10 actually cannot be vertical after construction, the gap between the piers 10 and the side wall of the through hole of the frame platform 1 is not a fixed value, and when the cap beam reinforcement cage 20 is jacked up, the pressure of the cap beam reinforcement cage 20 on the frame platform 1 is biased to one side, so the guide limiter 7 is added to enable the roller 71 to keep in contact with the pier 10 through the elastic force of the elastic assembly 72, thereby playing a role in stabilizing the frame platform 1 during the climbing of the frame platform 1. In an embodiment, the elastic assembly 72 comprises a horizontal plate 721, two vertical plates 722, a roller bracket 723, and a third spring 724. The horizontal plate 721 is arranged on the frame platform 1, the two vertical plates 722 are arranged on the horizontal plate 721 in a spaced manner, and long holes are formed in the corresponding positions of the two vertical plates 721. The roller bracket 723 is in a U-shaped form, the roller 71 is provided with a roller shaft 725, the two ends of the roller shaft 725 pass through the U-shaped two side walls of the roller bracket 723 and then pass through the long holes in the two vertical plates 722, respectively, and one end of the third spring 724 is connected with the bottom of the U-shaped roller bracket 723, and the other end is connected with the frame platform 1. Under the elastic force of the third spring 724, the roller 71 keeps in contact with the pier 10.

[0049] In an embodiment, the frame platform 1 is provided with a climbing ladder 8, and the climbing ladder 8 is composed of a plurality of climbing ladder segments. The climbing ladder 8 is composed of a plurality of climbing ladder segments, which solves the problem that the climbing ladder 8 needs to be erected higher in the past, and there is a lot of high-altitude operation, and the bridge pier 10 needs to be lifted by a lifting machine. The higher the bridge pier 10, the more difficult it is to solve the problem. Only when each standard climbing ladder segment is lifted by one height, the lower part of the assembled climbing ladder 8 is lengthened by continuously splicing the climbing ladder segments, which is fast and safe.

[0050] In an embodiment, the control system 4 comprises a hydraulic power pump station and a PLC connected with the hydraulic power pump station. The hydraulic power pump station is arranged on the frame platform 1 and connected with the climbing jack 22, the rotating and pulling jack 54, and the tensioning jack 214 through hydraulic oil pipes. The PLC sends instructions to the hydraulic power pump station, and the hydraulic power pump station supplies oil or returns oil to the climbing jack 22, the rotating and pulling jack 54, and the tensioning jack 214 through the hydraulic oil pipes to control the extension or contraction of the climbing jack 22, the rotating and pulling jack 54, and the tensioning jack 214.

[0051] In an embodiment, the frame platform 1 comprises two main beams arranged at intervals and a plurality of secondary beams arranged on the two main beams, the main beam comprises a first outer side section, a second outer side section and a plurality of support sections connected in sequence, the number of the plurality of support sections is the same as the number of the climbing mechanisms 2 and corresponds one by one, the climbing mechanism 2 is arranged on the corresponding support section, the plurality of support sections are arranged in sequence, and two adjacent support sections are connected through a connecting section, the first outer side section and the second outer side section are respectively arranged on two support sections located at the outer sides, the first outer side section, the second outer side section and the connecting section are all standard Bailey piece groups, the Bailey piece group is composed of a plurality of Bailey pieces, and the support section is a steel structure. Since the distance between the piers 10 is not a fixed value, the connecting section adopts the Bailey piece group, so that the length of the main beam can be adjusted according to the distance between the piers 10. The support section of the main beam has the maximum shear force, and the steel structure of the support section increases the shear area.

[0052] The use process of the pier bent cap climbing installation device is briefly described as follows.

[0053] S1, assemble the pier bent cap climbing installation device;

[0054] S11, mark the elevation position line of the two hoop assemblies 21 on the pier 10, then install the upper hoop assembly 21 on the pier 10 at the position of the corresponding elevation position line, and tighten the locking nut 92 on the locking bolt 91 to a set torque;

[0055] S12, hoist the frame platform 1 to the upper hoop assembly 21, and connect the upper hoop assembly 21 and the frame platform 1 through the hoisting rod 23 and the hoisting nut 25;

[0056] S13, install the lead screw mechanism in the balance beam first, and then install the balance beam at the corresponding position of the frame platform 1;

[0057] S14, install the formwork mechanism 5 on the frame platform 1, and move the movable formwork and the skeleton support 55 in the frame platform 1 through the lead screw mechanism;

[0058] S15, then install the lower hoop assembly 21, the climbing jack 22 and the balance counterweight tensioner 6 in sequence at the corresponding positions, for the convenience of description, the upper hoop assembly 21 is called the top hoop assembly 21, and the lower hoop assembly 21 is called the bottom hoop assembly 21;

[0059] S2, Assemble the cap beam reinforcement cage 20 on the skeleton support 55 according to the design drawing requirements, according to the counterweight tension calculated, through the rotating adjusting nut 67, compress or relax the first spring 64, to adjust the friction force between the first spring 64 and the friction assembly 66 and the reel 63 and the fixed shaft 62 respectively, set the maximum static friction force of the output of the counterweight tension balancer 6 as the counterweight tension calculated;

[0060] S3, The pier cap beam climbing installation device climbs;

[0061] S31, Control the tensioning jack 214 of the top hoop assembly 21 and the bottom hoop assembly 21 to be ejected, lock them on the pier 10, and remove the locking bolt 91 and the locking nut 92 on the top hoop assembly 21;

[0062] S32, Control the tensioning jack 214 on the top hoop assembly 21 to be retracted, and loosen the top hoop assembly 21;

[0063] S33, Control the climbing jack 22 to be on top, and the frame platform 1 to be lifted up by one stroke, and the top hoop assembly 21 to be lifted up by one stroke following the frame platform 1;

[0064] S34, Control the tensioning jack 214 on the top hoop assembly 21 to be ejected, lock the top hoop assembly 21 on the pier 10, and then control the tensioning jack 214 on the bottom hoop assembly 21 to be retracted, loosen the bottom hoop assembly 21;

[0065] S35, Control the climbing jack 22 to be retracted, and the bottom hoop assembly 21 to be pulled up by one stroke;

[0066] S36, Control the tensioning jack 214 on the bottom hoop assembly 21 to be ejected, lock the bottom hoop assembly 21 on the pier 10, complete one standard climbing stroke, and in this process, the counterweight tension balancer 6 releases the tensioning rope in time under the constant load state, and keeps the balance of the frame platform 1;

[0067] S37, Repeat steps S32 to S36, continue the climbing work of the next standard stroke, until the bottom of the cap beam reinforcement cage 20 is higher than the embedded reinforcement of the pier 10, and in this process, the ladder section 8 of the climbing ladder 8 is lengthened in time;

[0068] S38, Install the locking bolt 91 and the locking nut 92 on the top hoop assembly 21, make the top hoop assembly 21 fixedly connected to the pier 10, and complete the climbing work;

[0069] S4, control the driving unit 34 drives the screw spindle 32 to rotate, the screw sleeve 33 is driven by the rotation of the screw spindle 32, and the cover beam reinforcement cage 20 on the framework support pad 55 is moved from the first area of the frame platform 1 to the second area, so that the cover beam reinforcement cage 20 is located above the pier 10, the moving action is completed, and the adjusting nut 67 on the balance counterweight tensioner 6 is rotated to relax the first spring 64 and eliminate the counterweight tension;

[0070] S5, cover beam reinforcement cage 20 installation;

[0071] S51, after the precise positioning of the cover beam reinforcement cage 20, the locking bolt 91 and the locking nut 92 on the top hoop assembly 21 are removed, the tensioning jack 214 on the top hoop assembly 21 is controlled to retract, and the top hoop assembly 21 is loosened;

[0072] S52, control the retraction of the climbing jack 22 to lower the frame platform 1 until the cover beam reinforcement cage 20 falls to the designated position;

[0073] S53, remove the framework support pad 55, loosen the suspender 23, so that the distance between the frame platform 1 and the top hoop assembly 21 meets the requirements;

[0074] S54, open the sand filling valve 245 and the air release valve 246 of the unloading sand box 24, fill equal fine sand 243 into the sand box cylinder 242, and lock the sand filling valve 245 and the air release valve 246 after tamping;

[0075] S55, tighten the suspender 23, so that the sand box piston 241 of the unloading sand box 24 abuts against the frame platform 1;

[0076] S56, control the climbing jack 22 to rise, and lift the formwork mechanism 5 on the frame platform 1 to the corresponding position;

[0077] S57, control the tensioning jack 214 of the top hoop assembly 21 to eject, lock the top hoop assembly 21 on the pier 10, and lock the locking bolt 91 and the locking nut 92, and lock the locking bolt 91 to the predetermined tension;

[0078] S6, cover beam formwork installation;

[0079] S61, remove the sundries from the side form 52, then control the extension of the rotating tensioning jack 54, and turn the side form 52 upward to abut against the fixed bottom form 51. After the side form 52 reaches the corresponding position, the side form 52 is reinforced, the side form 52 installation is completed, and the cover beam concrete is poured;

[0080] S7, pier cover beam climbing installation device descending;

[0081] S71, after the concrete strength of the bent cap reaches, the tensioning jack 214 of the bottom hoop assembly 21 is controlled to retract, and the bottom hoop assembly 21 is loosened;

[0082] S72, the sand unloading valve 244 of the unloading sand box 24 is opened, the frame platform 1 is slowly lowered until the fixed bottom die 51, the movable bottom die 53 and the bent cap concrete are separated, the internal force of the frame platform 1 is eliminated, and the suspender 23 is locked;

[0083] S73, the climbing jack 22 is controlled to extend by one stroke, and the bottom hoop assembly 21 is lowered by one stroke;

[0084] S74, the tensioning jack 214 of the bottom hoop assembly 21 is controlled to eject, and the bottom hoop assembly 21 is locked on the pier 10;

[0085] S75, the locking bolt 91 on the top hoop assembly 21 is removed, the tensioning jack 214 of the top hoop assembly 21 is controlled to retract, and the top hoop assembly 21 is loosened;

[0086] S76, the climbing jack 22 is controlled to retract by one stroke, and the frame platform 1 and the top hoop assembly 21 are lowered by one stroke;

[0087] S77, the tensioning jack 214 of the top hoop assembly 21 is controlled to eject, the top hoop assembly 21 is locked on the pier 10, one standard lowering stroke is completed, and then the tensioning jack 214 of the bottom hoop assembly 21 is controlled to retract, and the bottom hoop assembly 21 is loosened;

[0088] S78, steps S73 to S77 are repeated until the pier bent cap climbing installation device returns to the ground, and in the process, the climbing ladder 8 segments of the climbing ladder 8 are timely disassembled.

[0089] Compared with the prior art, the beneficial effects of the present application are: the frame platform 1 and the formwork of the bent cap are erected on the ground, the bent cap reinforcement cage 20 is installed on the frame platform 1, is climbed to the top of the pier 10 through the climbing mechanism 2, and then is translated to the designed horizontal position through the translation mechanism 3, the bent cap reinforcement cage 20 is synchronously climbed, the problems of difficult overall hoisting, dispersed hoisting, time-consuming and labor-consuming and many safety hazards of the bent cap reinforcement cage 20 are solved; after the bent cap is poured and the concrete is completed, the frame platform 1 of the bent cap can return to the ground through the climbing mechanism 2 and then be disassembled, all original high-altitude operations are completely converted into ground operations, safety hazards are eliminated, safety is more controllable, the working environment of construction personnel is greatly improved, work efficiency is improved, a large number of crane use shifts are reduced, a large amount of cost and energy consumption is saved.

[0090] The above is only the preferred embodiment of the present application, and does not limit the present application in any form. Any simple modification, equivalent change and modification of the above embodiment based on the technical essence of the present application, without departing from the technical solution of the present application, still belongs to the scope of the technical solution of the present application.

Claims

1. A bridge pier cap beam climbing installation device, characterized in that, include: A frame platform is provided with a through hole for the bridge pier to pass through. The upper surface of the frame platform has a first region and a second region. The second region on the upper surface of the frame platform is the central region, and the through hole is located in the second region. The first region on the upper surface of the frame platform is located on one side of the second region. A climbing mechanism is provided on the outside of the bridge pier and connected to the frame platform, for driving the frame platform to move up and down along the bridge pier; A translation mechanism is provided, which is set on the first and second areas of the frame platform, for placing the cap beam steel reinforcement skeleton and moving the cap beam steel reinforcement skeleton from the first area to the second area; The control system is connected to the climbing mechanism and the translation mechanism; The template mechanism includes three fixed template components, two movable bottom molds, and two end molds. The three fixed template components are spaced apart along the transverse bridge direction on the frame platform, and an installation space for installing the movable bottom molds is formed between adjacent fixed template components. Each fixed template component includes a fixed bottom mold, two side molds, and two rotary jacks. The fixed bottom mold is fixed in the second area of ​​the frame platform. The two side molds are respectively hinged to the two ends of the fixed bottom mold along the transverse bridge direction. The cylinders of the two rotary jacks are respectively hinged to the two ends of the frame platform along the transverse bridge direction. The piston rods of the two rotary jacks are respectively hinged to the two side molds. The two movable bottom molds are respectively movably arranged in the two installation spaces and are mounted on the translation mechanism. The movable bottom molds are provided with skeleton supports. The two end molds are respectively mounted on the fixed bottom molds of the two fixed template components located on the outer side. The control system is connected to the rotary jacks.

2. The bridge pier cap beam climbing installation device according to claim 1, characterized in that, Two balance beams are spaced apart on the upper surface of the frame platform. The translation mechanism includes two lead screw mechanisms respectively set in the two balance beams. Each lead screw mechanism includes two bearing seats spaced apart, a lead screw spindle set on the two bearing seats, two lead screw bushings that cooperate with the lead screw spindle and are spaced apart, and a drive unit that drives the lead screw spindle to rotate. The balance beams are provided with sliding grooves for the lead screw bushings to move. The two movable bottom molds correspond one-to-one with the two lead screw mechanisms, and the movable bottom molds are set on the two lead screw bushings of the corresponding lead screw mechanisms.

3. The bridge pier cap beam climbing installation device according to claim 1, characterized in that, It also includes a counterweight tensioner, which comprises a mounting frame, a fixed shaft, a reel, a first spring, a tension rope, a friction assembly, and an adjusting nut. The fixed shaft is fixed to the mounting frame. The reel, friction assembly, first spring, and adjusting nut are all sleeved on the fixed shaft. The friction assembly is a frustum structure. One end of the reel has a frustum hole that matches the friction assembly. The friction assembly is inserted into the frustum hole. The two ends of the first spring abut against the friction assembly and the adjusting nut, respectively. The adjusting nut is threaded to the fixed shaft. By rotating the adjusting nut, the pressure of the first spring on the friction assembly can be adjusted to adjust the friction force between the friction assembly and the reel and the fixed shaft, respectively. One end of the tension rope is fixed to the reel, and the other end is connected to the end of the frame platform away from the first area.

4. The bridge pier cap beam climbing installation device according to claim 1, characterized in that, The climbing mechanism includes two clamping assemblies that are vertically spaced outside the piers and used to clamp or release the piers. The upper clamping assembly is connected to the frame platform, and the lower clamping assembly is provided with a number of climbing jacks at intervals. The piston rods of the climbing jacks are connected to the frame platform.

5. The bridge pier cap beam climbing installation device according to claim 4, characterized in that, The clamp assembly located above is equipped with several lifting rods and several unloading sand boxes. The frame platform is provided with adjustment through holes for several lifting rods to pass through. After the lifting rod passes through the corresponding adjustment through hole, it is threaded with a lifting nut. The top of the unloading sand box abuts against the frame platform.

6. The bridge pier cap beam climbing installation device according to claim 4, characterized in that, The clamp assembly includes a first template block, a second template block, a third template block, a tension jack, a pull rod, and a second spring. The first template block, the second template block, and the third template block are hinged sequentially, and all three are arc-shaped. The first template block has a first ear plate at the end near the third template block, and the third template block has a second ear plate at the end near the first template block. The tension jack is mounted on the first ear plate. The pull rod passes through the tension jack and the first ear plate sequentially and is connected to the second ear plate. The second spring is located between the first ear plate and the second ear plate and is sleeved on the pull rod.

7. The bridge pier cap beam climbing installation device according to claim 6, characterized in that, It also includes a locking assembly, which includes a plurality of locking bolts and locking nuts disposed on each locking bolt. The first and second ear plates of the clamp assembly located above have a plurality of locking through holes at corresponding positions for the plurality of locking bolts to pass through. After passing through the corresponding locking through holes, the locking bolts are connected to the locking nuts.

8. The bridge pier cap beam climbing installation device according to claim 1, characterized in that, A guide limiter is provided on the side wall of the through hole away from the first region. The guide limiter includes a roller and an elastic component connected to the roller for abutting the roller against the pier.

9. The bridge pier cap beam climbing installation device according to claim 1, characterized in that, The frame platform is equipped with a ladder, which is composed of several ladder segments spliced ​​together.

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