A general reusable caisson steel bar rapid deployment device

Abstract

A general reusable caisson steel bar fast deployment device belongs to the field of port engineering construction. The device comprises an assembled steel bar binding frame and an assembled steel bar hoisting frame. The assembled steel bar binding frame comprises a plurality of steel bar whole binding units arranged in the caisson compartments and a plurality of operation platforms arranged outside the periphery of the caisson compartments. The device greatly improves the system adaptability and turnover utilization rate, significantly reduces the demand for high-altitude operation, improves the safety of the construction site, and ensures the accurate arrangement of the steel bars and the thickness of the protective layer through accurate pre-binding control, thereby improving the overall quality and durability of the structure.

Description

Technical Field

[0001] This utility model belongs to the field of port engineering construction, and specifically relates to a general-purpose reusable caisson reinforcement rapid deployment device in the construction of precast caisson reinforcement structures. Background Technology

[0002] In port and waterway construction projects, traditional steel mesh binding and hoisting techniques rely on multiple vertical and horizontal tower crane operations to complete the segmented installation of steel mesh. While this technology is widely used for single or small-sized structures, it is extremely inefficient when dealing with large or variable-sized caisson structures, and the frequent tower crane movements significantly increase construction costs and time. Furthermore, the extensive binding operations at high altitudes pose significant safety risks and structural consistency issues; the precision of rebar spacing and protective layers is difficult to control, affecting the final structure's strength and durability.

[0003] Conventional integral binding and hoisting techniques, while improving the installation efficiency of steel mesh and reducing reliance on tower cranes, are typically designed for specific projects and lack adjustability, making them unsuitable for prefabricated caisson structures of varying sizes and shapes. This one-off, non-modular system design results in low equipment turnover and high costs, limiting its application in large-scale construction projects.

[0004] With the development of prefabricated construction, prefabricated structures are gradually being introduced into the traditional hydraulic engineering field. For example, gravity caisson wharves prefabricate conventional caissons into standardized wall, slab, and column components for prefabrication and installation; traditional concrete revetment projects use prefabricated concrete hollow box structures for installation and backfilling. These prefabricated hydraulic structures have promoted the development of port and waterway engineering, but they also have some limitations: First, prefabricated structures increase construction joints, which are detrimental to the durability of the structure under long-term erosion from the seawater environment; second, prefabricated hydraulic structures have high requirements for the terrain and foundation surface, and conventional treatment precision is difficult to meet. Utility Model Content

[0005] To address the problems of existing technologies, this invention proposes a universal, reusable, rapid deployment device for caisson reinforcement and its construction method. Employing a modular design, it includes adjustable limiting units, a standardized disc-locking work platform, and a Bailey panel tool-type hoisting frame. This system design significantly improves construction adaptability and equipment turnover rate, enabling rapid adjustment to accommodate prefabricated caisson structures of different sizes and shapes. It is suitable for projects of various scales and requirements, avoiding the problems of reduced component durability and high precision requirements associated with modular prefabrication and installation. By arranging the push-pull units at equal intervals between compartments to achieve synchronous positioning of reinforcement in multiple compartments, the high misalignment rate of reinforcement at compartment connections in traditional processes is solved. The use of modular elements not only reduces long-term operating costs but also improves the return on equipment investment, effectively addressing the shortcomings of existing technologies in terms of efficiency, safety, cost, and quality control.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a general-purpose reusable caisson reinforcement rapid deployment device, including a prefabricated reinforcement binding frame and a prefabricated reinforcement hoisting frame, wherein the prefabricated reinforcement binding frame includes multiple reinforcement binding units deployed in the caisson compartment and multiple working platforms deployed on the outer periphery of the caisson compartment; The integral rebar binding unit includes four disc-lock bracket system push-pull units. Each disc-lock bracket system push-pull unit includes a column group unit and a disc-lock push-pull connection unit for connecting two column groups. The column group unit consists of four disc-lock uprights and twelve disc-lock crossbars forming a 1.5m×1.5m×4.5m stable unit. The lower end of the disc-lock uprights is connected to a rotatable adjustable base. The disc-lock crossbars are divided into three groups (upper, middle, and lower) and connected to the disc-lock uprights, located at the corners of each floor, with steel footboards connected to them. The disc-lock push-pull connection unit includes a push-pull moving rod, a short crossbar, a disc-lock starting crossbar, and a fixed slide rail. The starting horizontal bar of the disc buckle is connected between the lowest layer of disc buckle horizontal bars of the two sets of column units. The remaining layers of disc buckle horizontal bars are connected by long horizontal bars. The fixed slide rail is integrated on the disc buckle horizontal bars on the inner side of the two adjacent sets of column units. The fixed slide rail is a lightweight stainless steel shaped component. The push-pull moving rod is embedded in the upper and lower fixed slide rails in layers. The ends of the push-pull moving rod can slide in the upper and lower slide rails respectively. The push-pull moving rod is fixed to several short horizontal bars as a whole. It is made of steel pipe or round steel. The number and spacing are determined according to the spacing and number of horizontal reinforcement bars in the wall. The length is determined according to the wall thickness and the thickness of the reinforcement protective layer.

[0007] The working platform includes columns made of interlocking uprights and interlocking crossbars connecting the columns. The lower ends of the interlocking uprights are connected to heavy-duty base supports, and steel treads are laid on each layer.

[0008] The upper part of the push-pull moving rod is equipped with a locking rod, which is used to lock the push-pull moving rod before the steel mesh is tied. Before the steel mesh is lifted, the locking is released and the push-pull moving rod is moved. The bottom fixed slide is equipped with a pin at the front 1 / 3, which is used to lock and fix the bottom support before the steel mesh is tied. Before the steel mesh is lifted, the locking is released and the push-pull unit of the disc buckle bracket system is moved.

[0009] The prefabricated rebar hoisting frame comprises a truss structure assembled from prefabricated Bailey bridge panels and steel beams. The structure is equipped with lifting points, with the upper part connected to the crane hook and the lower part connected to the caisson's rebar skeleton. The prefabricated rebar hoisting frame includes frame beams, main beams, distribution beams, and secondary distribution beams. The frame beams are rectangular frames formed from 20a I-beams according to the caisson compartment dimensions. Each main beam consists of a set of standard Bailey bridge panels spaced 45cm apart, with a total of three main beams. The bottom 20a I-beams are positioned above the lower chord of the Bailey bridge panels. Above the main beams are distribution beams, composed of double 40a I-beams, with two distribution beams in total, bolted to the upper chord of the main beam Bailey bridges. The secondary distribution beams are composed of double 50a I-beams, with two secondary distribution beams in total. The upper flange of the secondary distribution beams connects to the lower flange of the main distribution beams. Four upper lifting lugs are installed on the secondary distribution beams, connecting to the crane's wire rope. Sixteen lifting points are located around the frame beams, connecting to the rebar skeleton.

[0010] In each compartment of the caisson, four push-pull moving rods 2 are set at the four equal division points on the front and rear walls 001, two push-pull moving rods 2 are set at the four equal division points on the short partition wall 002, and two push-pull moving rods 2 are placed at the four equal division points on the long partition wall 003. The binding frame 9 is composed of a total of 96 push-pull moving rods 2.

[0011] Based on the external dimensions of the caisson, a rebar tying frame and hoisting frame were designed and manufactured to meet construction requirements. Before rebar tying, all push-pull units' push-pull uprights were pulled outwards, and the upper locking rods and lower pins were locked to ensure the push-pull uprights were fixed. After the rebar tying was completed, the entire rebar mesh was lifted off the short horizontal bar, the locking was released, the push-pull uprights were retracted, and the rebar mesh was lifted off the tying frame. It was then transported horizontally and vertically to the top of the caisson for installation using lifting equipment. Finally, the tying was adjusted and completed.

[0012] The beneficial effects of this utility model are: 1. Significantly improved construction efficiency: This utility model significantly improves construction efficiency by using the method of overall binding and hoisting of steel reinforcement in the prefabrication site. Compared with the traditional method of segmented processing and hoisting of caisson steel reinforcement, the construction efficiency of each section of wall reinforcement is increased by 4 times, and the time occupied by the platform is shortened by 75% compared with the original method.

[0013] 2. Significantly Reduced Operational Safety Risks: Caisson prefabrication is a labor-intensive operation, and the risks associated with working at heights are a key focus of safety management. Reinforcing steel binding and installation are also the longest-running steps in traditional high-altitude operations. Compared to traditional techniques, the overall hoisting process reduces the high-altitude work time for each section of wall reinforcement construction from the traditional 10 hours to 2.5 hours, a reduction of 25% of the original high-altitude work time, thus significantly lowering operational safety risks.

[0014] 3. Enhanced ease of operation: The binding frame and hoisting frame of this utility model make full use of standard rods such as structural steel, Bailey beams, and disc-lock scaffolding, and realize fully prefabricated integrated assembly. The component units can be freely assembled according to the size of the caisson, which greatly improves the ease of operation.

[0015] 4. Improved Construction Quality: Controlling the concrete cover of reinforced concrete has always been a key and challenging aspect of construction control for tall and large structural components such as caissons. Since most of the reinforcing bars are tied as a whole on the tying frame, the supporting and limiting function of the tying frame and the posture control during hoisting ensure the overall quality of the tying and installation. This completely solves the problems of difficulty in controlling the quality of on-site tying of reinforcing bars and other components due to limited working space, and the difficulty in controlling the thickness of the concrete cover, inherent in traditional processes. The pass rate of the concrete cover can reach over 90%.

[0016] 5. Improved cost-effectiveness: By using the same modular equipment in construction projects of different sizes, the initial investment cost of tooling is reduced by an average of 35% compared with the traditional method of purchasing tooling separately. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the push-pull unit of the disc buckle bracket system of this utility model; Figure 2 This is a plan view of the caisson compartment in this utility model; Figure 3 This is a plan view of the prefabricated steel bar hoisting frame in this utility model; Figure 4 This is a front view of the prefabricated steel bar hoisting frame in this utility model; Figure 5 This is a side view of the prefabricated steel bar hoisting frame in this utility model; Figure 6 This is a top view of the overall binding of the reinforcing steel bars in the caisson of this utility model; Figure 7 This is an elevation view of the integral binding unit for the caisson reinforcement in this utility model; Figure 8 This is an elevation view of the caisson reinforcement binding operation platform of this utility model; In the diagram: 1-Adjustable base; 2-Push-pull moving rod; 3-Disc buckle upright; 4-Short horizontal bar; 5-Disc buckle starting horizontal bar; 6-Fixed slide; 7-Disc buckle horizontal bar; 8-Disc buckle long horizontal bar; 9-Steel tread; 10-Heavy-duty base; 001-Front and rear walls of the caisson; 002-Short partition wall of the caisson; 003-Long partition wall of the caisson; 004-Push-pull unit of the disc buckle support system; 005-Working platform; 01-Frame beam; 02-Main beam; 03-Distribution beam; 04-Secondary distribution beam; 05-Upper lifting point; 06-Lower lifting point. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but the present invention is not limited to the specific embodiments.

[0019] Example 1

[0020] like Figure 2 The newly constructed wharf is a 100,000-ton container terminal. The main cross-sectional structure of the wharf is a rectangular caisson, with dimensions of 20.2×15.05×22m. A universal, reusable, rapid deployment device for the caisson reinforcement is used for the rapid deployment of the caisson reinforcement.

[0021] The general-purpose reusable caisson reinforcement rapid deployment device includes a prefabricated reinforcement binding frame and a prefabricated reinforcement hoisting frame. The prefabricated reinforcement binding frame includes multiple integral reinforcement binding units deployed inside the caisson compartment and multiple working platforms 005 deployed on the outer perimeter of the caisson compartment. The overall rebar binding unit includes four disc buckle support system push-pull units 004. Each disc buckle support system push-pull unit includes a column group unit and a disc buckle push-pull connection unit for connecting two column group units. The column group unit consists of four disc buckle uprights 3 and twelve disc buckle crossbars 7 forming a 1.5m×1.5m×4.5m stable unit. The lower end of the disc buckle uprights 3 is connected to a rotatable adjustable base 1. The disc buckle crossbars 7 are divided into upper, middle and lower groups, connected to the disc buckle uprights 3, located at the corner of each floor, and connected to steel footplates 9. The disc buckle push-pull connection unit includes a push-pull moving rod 2, a short crossbar 4, a disc buckle starting crossbar 5, and a fixed slide. The starting horizontal bar 5 of the disc buckle is connected between the lowest layer of disc buckle horizontal bars 7 of the two sets of column units. The remaining layers of disc buckle horizontal bars 7 are connected by long horizontal bars 8. The fixed slide rail 6 is integrated on the disc buckle horizontal bars 7 on the inner side of the two adjacent sets of column units. The fixed slide rail 6 is a lightweight stainless steel shaped component. The push-pull moving rod 2 is embedded in the upper and lower fixed slide rails 6 in layers. The ends of the push-pull moving rod can slide in the upper and lower slide rails respectively. The push-pull moving rod 2 is fixed to several short horizontal bars as a whole. It is made of steel pipe or round steel. The number and spacing are determined according to the spacing and number of horizontal reinforcement bars in the wall. The length is determined according to the wall thickness and the thickness of the reinforcement protective layer.

[0022] like Figure 8 As shown, the work platform 005 includes columns composed of disc buckle uprights 3 and disc buckle crossbars 7 connected between the columns. The lower end of the disc buckle uprights 3 is connected to a heavy-duty base support 10, and steel treads 9 are laid on each layer.

[0023] The upper part of the push-pull moving rod is equipped with a locking rod, which is used to lock the push-pull moving rod before the steel mesh is tied. Before the steel mesh is lifted, the locking is released and the push-pull moving rod is moved. The bottom fixed slide is equipped with a pin at the front 1 / 3, which is used to lock and fix the bottom support 1 before the steel mesh is tied. Before the steel mesh is lifted, the locking is released and the push-pull unit 004 of the disc buckle bracket system is moved.

[0024] Adjustable base 1 has an adjustment range of ±30mm.

[0025] The disc buckle upright 3 is a galvanized upright with a diameter of φ48×3.0mm and a single section length of 1.5m. After installation, it should be immediately corrected with a theodolite. The verticality deviation should be ≤2mm / m and the cumulative deviation should be ≤10mm.

[0026] The starting crossbar 5 of the disc buckle is set 500mm from the bottom plate, and is made of φ42×2.5mm reinforced crossbar.

[0027] The long crossbar 8 is a 6m long φ48×3.0mm bar with telescopic joints at both ends, with an adjustment range of ±100mm.

[0028] The long upright 3 uses a sleeve connection with a sleeve length of ≥400mm and a two-way locking pin at the joint.

[0029] The steel pedal 9 is 500×2000mm, with a U-shaped groove on the edge for locking with a crossbar, and a single pedal load capacity of ≥2kN / m².

[0030] In each compartment of the caisson, four push-pull moving rods 2 are set at the four equal division points on the front and rear walls 001, two push-pull moving rods 2 are set at the four equal division points on the short partition wall 002, and two push-pull moving rods 2 are placed at the four equal division points on the long partition wall 003. The binding frame 9 is composed of a total of 96 push-pull moving rods 2.

[0031] like Figures 3-5As shown, the prefabricated steel reinforcement hoisting frame is assembled from prefabricated Bailey bridge panels, steel beams, and other steel components into a truss structure. The structure has hoisting points; the upper part connects to the crane hook, and the lower part connects to the caisson reinforcement skeleton. The hoisting frame consists of frame beam 01, main beam 02, distribution beam 03, and secondary distribution beam 04. Frame beam 01 is a rectangular frame formed from 20a I-beams according to the dimensions of the caisson compartments. Each main beam 02 consists of a set of standard Bailey bridge panels spaced 45cm apart; a total of three main beams are installed, with the bottom 20a I-beams above the lower chord of the Bailey bridge panels. Above the main beams are distribution beams 03, which are composed of two 40a I-beams and are bolted to the upper chord of the main beam Bailey bridge. Secondary distribution beams 04 are composed of two 50a I-beams, with the upper flange of secondary distribution beam 04 connected to the lower flange of distribution beam 03. Four upper lifting lugs 05 are installed on the secondary distribution beam 04 and connected to the crane wire rope. Sixteen lifting points 06 are installed around the frame beam and connected to the steel reinforcement cage.

[0032] Based on the external dimensions of the caisson, prefabricated rebar tying frames and prefabricated rebar hoisting frames were designed and manufactured to meet construction requirements. Before rebar tying, all push-pull uprights 2 of the push-pull units 004 were pulled outwards, and the upper locking rods and lower pins were locked to ensure that the push-pull uprights 2 were in a fixed state. After the rebar tying was completed, the entire rebar mesh was lifted away from the short horizontal bar 4, the locking was released, the push-pull uprights 2 were retracted, and the rebar mesh was lifted off the tying frame. It was then transported horizontally and vertically to the upper part of the caisson for installation using lifting equipment. Finally, the tying was adjusted and completed.

[0033] Example 2

[0034] like Figures 6-8 As shown, the construction method using the device described in Example 1 includes the following specific steps: S1. Arrange the base of the fixture: Based on the structure of the caisson compartment, locate the mounting points of the positioning disc buckle bracket inside the caisson, and select a rotatable adjustable base 1 with an adjustment range of ±30mm.

[0035] S2. Constructing the jig and uprights: Install φ48×3.0mm galvanized uprights 3 on the adjustable base. Each section is 1.5m long. Immediately after installation, use a theodolite to calibrate the verticality. The verticality deviation should be ≤2mm / m, and the cumulative deviation should be ≤10mm.

[0036] S3. Connect the starting crossbar: Set the first crossbar 5 500mm away from the bottom plate, using a φ42×2.5mm reinforced crossbar.

[0037] S4. Arrangement of column units: Each column unit consists of four uprights (3) and eight horizontal bars (7), forming a stable unit of 2m×2m×1.8m. A pre-assembled hoisting process is used, with a single unit hoisting time ≤15 minutes. Multiple sets of steel reinforcement binding jig column units are provided within each caisson compartment.

[0038] S5. Use long horizontal bars to connect the column units into a whole: Use 6m long horizontal bars 8 (φ48×3.0mm) with telescopic joints at both ends (adjustment range ±100mm), first connect the outer frame, and then install the internal cross members to form a space truss system.

[0039] S6. Install upper-level columns and crossbars: Use sleeves to extend column 3 (sleeve length ≥ 400mm), and install two-way locking pins at the joints.

[0040] S7. Laying the working surface of the tread: The tread is a combination steel tread 9 (500×2000mm), with U-shaped grooves and crossbars for locking at the edges, and the single piece can bear a load of ≥2kN / m².

[0041] S8. Install push-pull moving unit: Set up push-pull unit 004 according to the distribution of steel bars in the caisson wall. Push-pull unit 004 includes stainless steel sliding base 6 and adjustable short crossbar 4, which are integrated into the disc buckle unit. The points are measured and laid out by the instrument (base plane height difference ≤10mm, layout deviation ≤5mm).

[0042] S9. Construction of the work platform: The work platform 005 is built based on a disc-locking bracket system. The work platform 005 bears a larger load than conventional work platforms when temporarily storing materials. The uprights 3 of the work platform 005 are composed of four columns 3 to increase the load-bearing capacity of the platform. When constructing the platform, first place the heavy-duty adjustable base 10, and then use standard components to assemble the four uprights 3 into column units and install them on the base. The column units are connected by standard crossbars 7 to form an overall frame, and a combination steel pedal 9 is installed. The edges are equipped with U-shaped slots to lock with the crossbars. The bottom of the work platform 005 is equipped with movable wheels, which can be used to move the platform after the initial construction.

[0043] S10. Push out the moving rod positioning frame: Push out the moving rod 2 along the slide rail 6, adjust it according to the position of the steel bar, and finally fix it with a pin. The upper part is locked with a locking rod.

[0044] S11. Positioning of the work platform: After the binding frame is installed, bring the pre-assembled disc buckle bracket work platform 005 close to the binding frame, adjust its position, and lock the bottom of the work platform.

[0045] S12. Reinforcing bar processing and fabrication: The reinforcing bars shall be conventional building reinforcing bars that conform to national standards and shall be processed and fabricated by layout. The relevant standards refer to GB / T1499.2-2018 "Steel for reinforced concrete - Part 2: Hot-rolled ribbed steel bars".

[0046] S13. Overall Reinforcing Steel Binding: The reinforcing steel is bound together on the binding frame, with the lifting points of the uprights corresponding one-to-one with the lifting points at the bottom of the lifting frame. The lifting frame is a truss structure composed of Bailey panels and steel sections, including 4 sets of upper lifting lugs and 16 lower lifting points. The distribution of the lower lifting points is adapted to the position of the partition wall of the caisson compartment. The lifting points are φ20mm steel bars welded to the top of the uprights, with a welding length ≥100mm (double-sided welding), and the horizontal deviation between the position of the lifting point and the lower lifting point of the lifting frame is ≤3mm, ensuring that the stress difference of a single lifting point is ≤5% during lifting.

[0047] S14. Connection and fixing of hoisting frame and steel reinforcement cage: After the steel reinforcement of the caisson wall is tied and formed by the steel reinforcement binding frame, check the hoisting frame and wire rope, select the appropriate wire rope and connect the hoisting frame and hook according to the requirements; hoist the hoisting frame to the corresponding position above the steel reinforcement mesh, and strictly connect all the wire ropes at the bottom of the hoisting frame to the lifting points of the steel reinforcement mesh in the corresponding positions.

[0048] S15. Separation of the binding frame from the reinforcing steel mesh: Slowly lift the reinforcing steel mesh upwards, separating the reinforcing steel from the horizontal crossbar of the mesh frame by 10mm. Stop lifting the reinforcing steel mesh, then fully retract all the push-pull uprights 2 of the push-pull unit 004 along the slide rail, and lift again to detach the reinforcing steel mesh. During the lifting process, strictly monitor the reinforcing steel at each location. If any friction is found between the reinforcing steel and the binding frame, stop lifting immediately for adjustment. The lifting frame is equipped with two sway ropes for adjusting and controlling the attitude of the mesh.

[0049] S16. Steel Frame Hoisting and Positioning: Before hoisting the reinforcing mesh, pre-install one side of the core mold and working platform. Adjust the vertical reserved reinforcing bars on the outer wall of the caisson and the partition wall, tilting them all inwards and temporarily fixing them with tie wire. After the reinforcing mesh is hoisted above the caisson, slowly adjust its horizontal position, using the core mold as a reference, so that the reinforcing mesh corresponds exactly to the position of the caisson. Then, slowly lower it and adjust it in time. Use tools at the bottom to appropriately increase the spacing between the inner and outer layers of reinforcing bars in the wall to achieve rapid connection of the joint reinforcing bars and complete the lap binding of the vertical reinforcing bars in time. The installation process must be under unified command. If any deviation occurs, stop the hooking and adjust it in time. Do not force the caisson to fall, as this will affect the installation quality.

[0050] The above are preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A universal reusable caisson reinforcement rapid deployment device, characterized in that, The device includes a prefabricated rebar binding frame and a prefabricated rebar hoisting frame. The prefabricated rebar binding frame includes multiple rebar binding units deployed inside the caisson compartment and multiple working platforms deployed around the caisson compartment. The integral rebar binding unit includes four disc-lock bracket system push-pull units. Each disc-lock bracket system push-pull unit includes a column group unit and a disc-lock push-pull connection unit for connecting two column group units. The column unit consists of four disc-lock uprights and twelve disc-lock crossbars. The lower end of the disc-lock uprights is connected to a rotatable adjustable base. The disc-lock crossbars are divided into three groups: upper, middle, and lower, connected to the disc-lock uprights and located at the corners of each floor. Steel footboards are connected to these crossbars. The disc buckle push-pull connection unit includes a push-pull moving rod, short crossbars, a disc buckle starting crossbar, and fixed slide rails. The disc buckle starting crossbar connects the lowest layer of disc buckle crossbars between two sets of column units, and the remaining layers of disc buckle crossbars are connected by long crossbars. The fixed slide rails are integrated on the opposing disc buckle crossbars on the inner sides of two adjacent sets of column units. The push-pull moving rod is layered and fixedly embedded in the upper and lower fixed slide rails, and the ends of the push-pull moving rod can slide in the upper and lower slide rails respectively. The push-pull moving rod and several short crossbars are fixed as a whole. The work platform includes columns made of interlocking uprights and interlocking crossbars connecting the columns. The lower ends of the interlocking uprights are connected to heavy-duty base supports, and steel treads are laid on each layer. The prefabricated steel bar hoisting frame includes a truss structure assembled from prefabricated Bailey panels and steel beams. The structure is equipped with hoisting points, with the upper hoisting point connected to the crane hook and the lower hoisting point connected to the caisson steel bar skeleton.

2. The universal reusable caisson reinforcement rapid deployment device according to claim 1, characterized in that, The upper part of the push-pull moving rod is equipped with a locking rod, which is used to lock the push-pull moving rod before the steel mesh is tied. Before the steel mesh is lifted, the locking is released and the push-pull moving rod is moved. The bottom fixed slide is equipped with a pin at the front 1 / 3, which is used to lock and fix the bottom support before the steel mesh is tied. Before the steel mesh is lifted, the locking is released and the push-pull unit of the disc buckle bracket system is moved.

3. The universal reusable caisson reinforcement rapid deployment device according to claim 1, characterized in that, The column assembly unit is a stabilizing unit of 1.5m×1.5m×4.5m, and the fixed slide is a lightweight stainless steel shaped component.

4. The universal reusable caisson reinforcement rapid deployment device according to claim 1, characterized in that, The short crossbars are made of steel pipes or round steel bars, and their number and spacing are determined according to the spacing and number of horizontal reinforcement bars in the wall. Their length is determined according to the wall thickness and the thickness of the reinforcement protective layer.

5. A universal reusable caisson reinforcement rapid deployment device according to claim 1, characterized in that, The truss structure includes frame beams, main beams, distribution beams, and secondary distribution beams. The frame beams are 20a I-beams. The main beams are composed of a set of standard Bailey bridge sections spaced 45cm apart, with a total of 3 main beams. The bottom I-beams are 20a I-beams. The distribution beams are composed of double 40a I-beams, with two distribution beams in total, bolted to the upper chord of the main beam Bailey bridge. The secondary distribution beams are composed of double 50a I-beams, with two secondary distribution beams in total. The frame beams have 16 suspension points around them connected to the steel reinforcement cage.

6. A universal reusable caisson reinforcement rapid deployment device according to any one of claims 1 to 5, characterized in that, In each compartment of the caisson, four push-pull moving rods are set at the four equal division points on the front and rear walls, two push-pull moving rods are set at the four equal division points on the short partition walls, and two push-pull moving rods are placed at the four equal division points on the long partition walls. The lashing frame is composed of a total of 96 push-pull moving rods.

Images