Rail slip form body device applicable to different spans
Through modular design, the sliding mold body is broken down into interchangeable modules, which solves the problem that the mold body of the traditional sliding mold system cannot be flexibly adjusted, achieves flexible adaptation to construction of different spans, and reduces construction and transportation costs.
Patent Information
- Application Number
- CN202422239388.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-12
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-09-12
AI Technical Summary
The overall design of the traditional sliding mode system cannot be flexibly adjusted, resulting in complex transformation work when facing different span requirements, which increases construction difficulty and cost, and is inconvenient for model transportation and transition, relying on large equipment and high-cost special transportation.
The modular design adopts a modular design to decompose the sliding mold into interchangeable standard sections and non-standard sections. The rapid assembly and disassembly between the formwork is achieved through high-strength bolt connection and welding technology, and the mold can easily meet the concrete construction needs of different spans.
It improves the adaptability and flexibility of the sliding form system, simplifies the transformation work during the construction process, reduces construction difficulty and cost, and facilitates transportation and transitions, reducing dependence on large-scale equipment and road conditions.
Smart Images
Figure CN222975767U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of rail-mounted slip form devices, and particularly relates to a rail-mounted slip form device applicable to different spans. Background Art
[0002] In current civil engineering construction, especially in the concrete construction of steep sections of structures such as dams, bridges, and high-rise buildings, the slip form technology is widely used due to its efficient and continuous construction characteristics. As an important construction equipment, the design of the slip form system directly affects the project progress, quality, and cost. The slip form system consists of a traction system, a form body, a finishing platform, and tracks. However, traditional slip form systems often have some significant limitations in design, and these limitations are becoming more and more obvious in current engineering practices.
[0003] First of all, the form body of the traditional slip form system usually adopts an integral design, which is particularly rigid when dealing with concrete construction of different spans. Since the specific conditions of each engineering project vary greatly, the span of the concrete structure often needs to be adjusted according to the actual situation. However, the integrally designed form body cannot flexibly adjust its size and shape, resulting in complex modification work when facing different span requirements, including a series of cumbersome steps such as cutting, recalculating the stress, and reinforcement treatment. This not only increases the construction difficulty and cost, but also prolongs the construction period and reduces the construction efficiency. Secondly, due to the large overall size of the traditional form body, it brings great inconvenience to transportation and transfer. During the engineering construction process, the form body often needs to move between different construction areas to complete the continuous construction of the entire project. However, large integral form bodies rely on large lifting equipment and special transportation vehicles during transportation, which not only increases the transportation cost, but also places higher requirements on road conditions. In addition, during the transfer process, complex disassembly and reassembly work of the form body are required, further increasing the construction difficulty and time cost. Summary of the Utility Model
[0004] The purpose of the utility model is to provide a rail-mounted slip form device applicable to different spans to solve the problems raised in the above background art.
[0005] To achieve the above purpose, the utility model provides the following technical solutions:
[0006] A rail-mounted slip form device applicable to different spans, comprising:
[0007] A dam, with overflow side walls arranged on both sides of the overflow surface of the dam;
[0008] Formwork, the formwork is arranged on one side of the dam overflow surface. The formwork includes a number of templates movably installed on one side of the dam overflow surface. A steel truss is fixedly installed on one side of the template. Square steels are fixedly connected to both sides of the steel truss. Walking wheels are movably installed at both ends of the square steel through bearings.
[0009] Traction assembly, the traction assembly is arranged on one side of the top of the dam. The traction assembly includes a traction frame fixedly installed on the top of the dam. An electric hoist is installed on one side of the traction frame through a fixed seat. A steel wire rope is arranged inside the electric hoist. One end of the steel wire rope is fixedly connected to the formwork.
[0010] Sliding form track, there are two sliding form tracks in total, and they are fixedly installed on one side of the overflow side wall. The walking wheels extend into the sliding form track.
[0011] Plastering platform, the plastering platform is arranged on one side of the dam overflow surface. The plastering platform is fixedly connected to the formwork through a bracket.
[0012] Preferably, a number of bolt holes are symmetrically opened on both sides of the template, and the templates are fixedly connected by bolts.
[0013] Preferably, the steel truss and the template are connected by welding, and the square steel and the steel truss are connected by welding.
[0014] Preferably, the sliding form track is formed by connecting a number of channel steels, and the channel steels are connected by welding.
[0015] Preferably, the plastering platform is an angle steel frame welded structure, and walking wheels are also movably installed on both sides of the plastering platform through bearings.
[0016] Preferably, the steel truss adopts a truss-type cross-welding structure.
[0017] Compared with the prior art, the beneficial effects of the present utility model are:
[0018] (1) The present utility model realizes the flexible adaptation of the sliding formwork to different spans through modular design. The formwork is decomposed into interchangeable standard sections and non-standard sections, and high-strength bolt connection and welding technology are used to achieve rapid assembly and disassembly between the templates, enabling the formwork to easily meet the concrete construction requirements of different spans. This design method not only improves the adaptability and flexibility of the sliding formwork system, but also greatly simplifies the transformation work during construction, reducing the construction difficulty and cost.
[0019] (2) The present utility model also brings convenience in transportation and transfer. Since the mold body is decomposed into multiple modules with smaller sizes, these modules can be transported and transferred by ordinary transportation tools without relying on large lifting equipment and special transportation vehicles. This not only reduces transportation costs but also improves transportation efficiency. At the same time, during the transfer process, the disassembly and reassembly work between modules also becomes simple and easy, further shortening the construction period.
[0020] (3) The present utility model also enhances the structural strength and stability of the slip form system. In the modular design, each module is carefully designed and optimized through calculation to ensure its structural strength and stability. At the same time, high-strength bolts and welding techniques are used for the connection between modules to ensure the firmness of the connection. This design method makes the overall structure of the slip form system more compact, sturdy and durable, and can withstand greater construction loads and more complex construction environments.
[0021] (4) The present utility model also improves construction efficiency and quality. Since the mold body can be quickly assembled and disassembled according to specific construction requirements, the construction preparation time can be significantly shortened and the construction progress can be accelerated. At the same time, the modular design also makes the maintenance and repair work of the slip form system simpler and more convenient, which is conducive to extending the service life of the equipment and reducing maintenance costs. In terms of construction quality, due to the modular design, each construction link can be finely controlled and managed, so the construction quality of concrete can be significantly improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 is a schematic diagram of the formwork structure of the present utility model;
[0023] Figure 2 is a schematic diagram of the assembled structure of the mold body of the present utility model;
[0024] Figure 3 is a schematic diagram of the side structure of the dam of the present utility model;
[0025] Figure 4 is a schematic diagram of the elevation structure of the dam of the present utility model.
[0026] In the figure: 1, dam; 11, overflow side wall; 2, mold body; 21, formwork; 22, steel truss; 23, square steel; 24, walking wheel; 25, bolt hole; 3, traction assembly; 31, traction frame; 32, electric hoist; 33, steel wire rope; 4, slip form track; 5, plastering platform. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0028] Embodiment 1:
[0029] See also Figure 1 - Figure 4 As shown, a track sliding formwork device applicable to different spans includes:
[0030] The dam 1 has overflow side walls 11 arranged on both sides of the overflow surface of the dam 1;
[0031] The mold body 2 is arranged on one side of the overflow surface of the dam 1. The mold body 2 includes a plurality of templates 21 movably installed on one side of the overflow surface of the dam 1. A steel truss 22 is fixedly installed on one side of the template 21. Square steels 23 are fixedly connected on both sides of the steel truss 22. Travel wheels 24 are movably installed on both ends of the square steels 23 through bearings.
[0032] A traction assembly 3 is arranged at one side of the top of the dam 1. The traction assembly 3 includes a traction frame 31 fixedly installed at the top of the dam 1. An electric hoist 32 is installed on one side of the traction frame 31 through a fixed seat. A steel wire rope 33 is arranged inside the electric hoist 32. One end of the steel wire rope 33 is fixedly connected to the mold body 2.
[0033] Sliding form rails 4, there are two sliding form rails 4, and they are fixedly installed on one side of the overflow side wall 11, and the running wheels 24 extend into the sliding form rails 4;
[0034] The plastering platform 5 is arranged on one side of the overflow surface of the dam 1 , and the plastering platform 5 is fixedly connected to the mold body 2 through a bracket.
[0035] Specifically, a plurality of bolt holes 25 are symmetrically provided on both sides of the template 21, the templates 21 are fixedly connected by bolts, the steel truss 22 and the template 21 are welded, the square steel 23 and the steel truss 22 are welded, the sliding track 4 is formed by connecting a plurality of channel steels, and the channel steels are welded, the plastering platform 5 is an angle steel frame type welded structure, and walking wheels 24 are also movably installed on both sides of the plastering platform 5 through bearings, and the steel truss 22 adopts a truss-type cross-welded structure.
[0036] As described above, the templates 21 are connected by bolts inserted into the bolt holes 25. The steel trusses 22 are used to ensure the overall stiffness of the formwork body 2. The square steel 23 is used to connect the steel trusses 22. The finishing platform 5 is an important facility for manually treating the surface of the cast concrete. For example, the maintenance water source pipeline is led to the finishing platform 5, and during the jacking process, the concrete that has already set is watered for maintenance. Four steel plate hooks are designed at the front end of the formwork body 2, and the wire rope 33 is fixed with a rope buckle. Among them, the traction assembly 3, the slip form track 4, and the finishing platform 5 are all designed according to the existing conventional structures and will not be elaborated here. In actual operation, a walking platform is arranged on the upper part of the steel truss 22, specifically a 50mm×50mm×5mm angle steel guardrail, and the platform is paved with checkered plates.
[0037] In this embodiment, the slope ratio of the straight-line slip form section of the overflow surface slope is 1:0.75, with elevations from EL846.00 to EL875.01. The net width of the overflow surface is 19m, and the slope length of the slope surface is 36.26m. From EL875.01 to EL885.37, the overflow surface is divided into two holes by the middle pier, with both net widths being 8m and the slope lengths being 12.95m. The overflow surface concrete has two widths (19m and 8m). When designing the formwork body 2, both transportation issues and the adaptability of the formwork body 2 to the two different widths need to be considered. The following details the design parameters of the 19m-span formwork body 2:
[0038] The steel truss 22 is divided into three sections, two sections of 7.63m and one section of 3.29m in the middle. The combined total length is 7.63×2 + 3.29 = 18.55m. The height of the steel truss 22 is 1.25m, and it has a trapezoidal cross-section.
[0039] The width of the formwork body 2 panel is 1.0m (along the water flow direction), and the span is 18.90m. A 6mm-thick steel plate is used, and both the back ribs and the stiffeners are 8mm-thick steel plates, with the height of the back ribs being 80mm.
[0040] The self-weight of the formwork body 2 is 8.8t (truss + panel). Two walking wheels 24 with a diameter of 230mm are respectively installed on both sides of the formwork body 2 and are embedded in the slip form track 4 (25b channel steel) fixed on the overflow side wall 11, and can move along the track under the indexing of the electric hoist 32.
[0041] Example Two:
[0042] The numerical values of the overflow surface slope in this embodiment are the same as those in Example One. The following details the design parameters of the 8m-span formwork body 2:
[0043] The steel truss 22 is one section, with a length of 7.63m. The height of the steel truss 22 is 1.25m, and it has a trapezoidal cross-section.
[0044] The panel of Formwork 2 is 1.0 m long (along the water flow direction) and has a span of 7.90 m. The thickness of the panel of Formwork 21 is 6 mm, and the back ribs and stiffeners are both steel plates with a thickness of 8 mm. The height of the back ribs is 80 mm, and the total width of the panel of Formwork 2 is 7.90 m. The self-weight of Formwork 2 is 3.7 t.
[0045] Two traveling wheels 24 with a diameter of 230 mm are respectively installed on both sides of Formwork 2 and are embedded in the slipform tracks 4 (25b channel steel) on the overflow side wall 11 and the middle pier, and can travel along the tracks under the indexing of the electric hoist 32.
[0046] The overall design of this slipform can not only meet the pouring of the 19-meter-wide overflow surface, but also meet the pouring of two 8-meter-wide overflow surfaces after being disassembled and decomposed.
[0047] This application can be applied to the construction of the concrete face slab of the rockfill dam of a hydropower station. For example, a large hydropower station project is located in the mountains, and its rockfill dam project is one of the core parts of the project. The concrete face slab of the rockfill dam, as the anti-seepage structure of the dam 1, its construction quality is directly related to the safety and stability of the entire dam 1. Due to the complex terrain of this hydropower station, the construction surface of the concrete face slab of the rockfill dam has a large slope and diverse span changes, which puts extremely high requirements on the concrete construction equipment. The traditional slipform system is difficult to meet the construction requirements due to problems such as poor adaptability and difficult transportation and transfer. Therefore, it is decided to use the device of this application for construction, and the specific implementation steps are as follows:
[0048] S1. According to the design drawings and construction plan of the concrete face slab of the rockfill dam, determine the specific parameters of the slipform system, including the dimensions of Formwork 2, the span range, the track layout, etc. At the same time, according to the actual situation of the construction site, formulate a detailed construction plan and safety measures;
[0049] S2. Lay the slipform tracks 4 in the construction area of the concrete face slab of the rockfill dam to ensure that the tracks are flat and stable. At the same time, set up the traction assembly 3;
[0050] S3. Select appropriate standard sections and non-standard sections for the assembly of Formwork 2, and tighten the connections through high-strength bolts. Then splice and weld the steel truss 22 according to the design requirements, continue to weld the square steel 23, and install the traveling wheels 24;
[0051] S4. Weld the finishing platform 5 to Formwork 2, connect the steel wire ropes 33, and carry out the overall commissioning work. Check whether the key indicators such as the flatness, verticality of Formwork 2 and the parallelism of the tracks meet the requirements. At the same time, commission and test-run the auxiliary equipment such as the traction assembly 3 and the finishing platform 5 to ensure that the entire slipform system can operate normally;
[0052] S5. After the slipform system is ready, start the concrete pouring work. As the concrete is poured and hardened, the slipform system needs to move along the tracks to complete the construction of the next stage;
[0053] S6. After the initial setting of the concrete surface, surface finishing treatment shall be carried out in a timely manner to improve its flatness and aesthetics. The surface finishing work can be completed by auxiliary equipment such as the surface finishing platform 5. After the surface finishing, the concrete shall be cured to ensure that its strength and durability meet the design requirements;
[0054] S7. During the use of the slip form system, regular maintenance and servicing work shall be carried out to ensure its normal operation and extend its service life. The maintenance work includes checking the flatness, perpendicularity of the formwork body 2 and the fastening condition of the connectors, etc. The servicing work includes cleaning the concrete residues on the surface of the formwork body 2, applying anti-rust paint, etc.
[0055] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A rail sliding formwork device applicable to different spans, characterized in that: include: A dam (1), wherein overflow side walls (11) are arranged on both sides of the overflow surface of the dam (1); A mold body (2), the mold body (2) being arranged on one side of the overflow surface of the dam (1), the mold body (2) comprising a plurality of mold plates (21) movably installed on one side of the overflow surface of the dam (1), a steel truss (22) being fixedly installed on one side of the mold plate (21), square steels (23) being fixedly connected on both sides of the steel truss (22), and walking wheels (24) being movably installed on both ends of the square steels (23) via bearings; A traction assembly (3), the traction assembly (3) being arranged on one side of the top of the dam (1), the traction assembly (3) comprising a traction frame (31) fixedly installed at the top of the dam (1), an electric hoist (32) being installed on one side of the traction frame (31) via a fixing seat, a steel wire rope (33) being arranged inside the electric hoist (32), one end of the steel wire rope (33) being fixedly connected to the mold body (2); Sliding form rails (4), there are two sliding form rails (4) in total, which are fixedly installed on one side of the overflow side wall (11), and the running wheels (24) extend into the interior of the sliding form rails (4); A plastering platform (5), wherein the plastering platform (5) is arranged on one side of the overflow surface of the dam (1), and the plastering platform (5) is fixedly connected to the mold body (2) via a bracket.
2. A rail sliding formwork device applicable to different spans according to claim 1, characterized in that: A plurality of bolt holes (25) are symmetrically provided on both sides of the template (21), and the templates (21) are fixedly connected by bolts.
3. The rail sliding formwork device applicable to different spans according to claim 1, characterized in that: The steel truss (22) and the template (21) are connected by welding, and the square steel (23) and the steel truss (22) are connected by welding.
4. The rail sliding formwork device applicable to different spans according to claim 1, characterized in that: The sliding formwork track (4) is formed by connecting a plurality of channel steels, and the channel steels are connected by welding.
5. The rail sliding formwork device applicable to different spans according to claim 1, characterized in that: The plastering platform (5) is an angle steel frame type welded structure, and both sides of the plastering platform (5) are also movably mounted with walking wheels (24) via bearings.
6. The rail sliding formwork device applicable to different spans according to claim 1, characterized in that: The steel truss (22) adopts a truss-type cross-welded structure.