Mold for slip-form construction of concrete anti-collision guardrail
By designing a transverse concrete anti-collision guardrail sliding form construction mold, combined with the design of the connecting mechanism and the oil cylinder push side plate, the problems of high height of the traditional mold forming section, the concrete collapse and the difficulty of fixing the position of the steel bars are solved, and the stable molding and high-quality appearance of concrete are achieved.
Patent Information
- Application Number
- CN202422185279.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-06
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-09-06
AI Technical Summary
The mold forming sections of traditional concrete anti-collision guardrails are high in height and have a large height-to-face ratio, which leads to the collapse of concrete and the surface of honeycombs during sliding form construction, making it difficult to accurately fix the steel bars, affecting the strength and appearance quality of the concrete.
Design a mold for sliding form construction of concrete anti-collision guardrails. The mold is placed horizontally and connected and fixed with the sliding form paver through the connecting mechanism to reduce the height of the mold forming section, increase the height and aspect ratio, ensure the stable forming of concrete, and push the side plate downward to fit the ground through the oil cylinder to avoid concrete leakage.
By reducing the height of the mold forming section, reducing concrete slump and honeycomb snail surfaces, ensuring accurate fixation of the steel bars, improving the strength and appearance quality of the concrete, and simplifying the defect repair process.
Smart Images
Figure CN223013481U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of highway and municipal construction, and particularly relates to a mold for slip form construction of a concrete anti-collision guardrail. Background Technique
[0002] Concrete anti-collision guardrails are widely used in highways and municipal roads. Some of their shapes are as Figure 1 shown. The height is approximately 1000 - 1300 mm, the top width is 145 - 300 mm, the bottom width is 200 - 600 mm. There are longitudinal steel bars (steel strands) and transverse steel bars (none in some designs) inside. The front (i.e., the side facing the traffic lane, the same below) faces the traffic lane, the back faces the central isolation belt or the outside of the roadbed, the top faces upward, and the bottom is located on the foundation or the sleeper beam. Currently, the construction methods include prefabrication, on-site formwork support and in-situ casting, and slip form construction.
[0003] During slip form construction, the mold is installed on a slip form paver or track, and directly slip formed at the designed position of the concrete anti-collision guardrail. The height of the formed section of the traditional mold for slip form construction of a concrete anti-collision guardrail is roughly the same as the height of the concrete anti-collision guardrail. The main difficulty in slip form construction is that the height of the formed section is high and the height-width ratio (the ratio of the maximum height to the maximum width of the formed section of the mold) is large, resulting in various defects such as concrete collapse and many honeycombs and pockmarks on the surface after slip form construction, and it is difficult to repair the defects. If there are steel bars (steel strands) in the concrete structure, it is difficult to accurately fix the positions of the steel bars (steel strands), resulting in uneven thickness of the steel bar protection layer and difficulty in meeting the specification requirements. In addition, due to the high height of the vertical bars, during the slip form construction process, the concrete is pushed forward, causing a large displacement of the upper part of the steel bars. After slip form forming, the rebound of the steel bars will cause cracks on the concrete surface, affecting the strength and appearance quality of the concrete. Moreover, in order to prevent the mold from scraping against the ground during construction, an appropriate distance is reserved between the bottom of the mold and the ground, which easily leads to the situation of concrete side leakage.
[0004] Therefore, a mold for slip form construction of a concrete anti-collision guardrail is proposed to solve the above problems. Content of the Utility Model
[0005] The purpose of the utility model is to provide a mold for slip form construction of a concrete anti-collision guardrail to solve the problems raised in the above background technique.
[0006] To achieve the above object, the present utility model provides the following technical solutions: A mold for slip forming construction of a concrete anti-collision guardrail, including a transverse forming section of the mold, a mold material bin section is connected to the left side of the transverse forming section of the mold, a through groove is opened at the bottom of the left side wall of the mold material bin section, oil cylinders are installed on both sides of the outer side wall of the mold material bin section, a piston rod end of the oil cylinder is fixedly connected with a side plate, and a connecting mechanism connected to a slip form paver is arranged between the upper surface of the transverse forming section of the mold and the right side wall of the mold material bin section.
[0007] As a further preference of this technical solution: The transverse forming section of the mold is made of steel plates and section steels, and the designed dimensions and shapes of the inner walls of the transverse forming section of the mold match the designed dimensions and shapes of the outer walls of the concrete anti-collision guardrail.
[0008] As a further preference of this technical solution: Reinforcing ribs are uniformly and fixedly connected between the upper surface of the transverse forming section of the mold and the right side wall of the mold material bin section.
[0009] As a further preference of this technical solution: The connecting mechanism includes a connecting frame, both ends of the connecting frame are respectively fixedly connected to the upper surface of the transverse forming section of the mold and the right side wall of the mold material bin section, four mounting frames are symmetrically and fixedly connected to the upper surface of the connecting frame, and mounting holes are opened on the upper surfaces of the mounting frames.
[0010] As a further preference of this technical solution: Two connecting blocks one are symmetrically and fixedly connected to the outer side wall of the side plate, and a sleeve rod is fixedly connected to one end of the connecting block one.
[0011] As a further preference of this technical solution: Two connecting blocks two are symmetrically and fixedly connected to the outer side walls of the transverse forming section of the mold and the mold material bin section, a sleeve is fixedly connected to one end of the connecting block two, and the sleeve is slidably connected with the sleeve rod.
[0012] As a further preference of this technical solution: A feeding and forming section is fixedly connected to the bottom of the left side wall of the mold material bin section, and the feeding and forming section is communicated with the through groove.
[0013] As a further preference of this technical solution: A controller is installed on the front surface of the mold material bin section close to the oil cylinder, and an electrical output end of the controller is electrically connected to an electrical input end of the oil cylinder through a wire.
[0014] Compared with the prior art, the beneficial effects of the present utility model are:
[0015] The utility model fixes the mold to the slipform paver through a connecting mechanism. Concrete enters the transverse forming section of the mold along the hopper section of the mold and is slipformed at the designed position of the non-concrete anti-collision guardrail. Since the transverse forming section of the mold is placed horizontally, compared with the mold for slipform construction of traditional concrete anti-collision guardrails, without changing the structural dimensions of the concrete anti-collision guardrail, the height of the forming section of the mold is greatly reduced, the aspect ratio of the height to the width of the forming section of the mold is greatly reduced, the concrete is not prone to collapse, there are few defects after forming, and the position of the steel bars in the concrete guardrail is easy to fix, ensuring the qualification rate of the thickness of the steel bar protection layer. When forming, the front of the concrete anti-collision guardrail faces upward, greatly reducing the honeycombing and pitting phenomenon, and it is easier to repair the defects, making it easier to ensure the appearance quality of the front of the concrete anti-collision guardrail, avoiding the phenomenon of the front concrete dropping after being formed by traditional mold construction. Since the overall height of the mold is reduced, the height of the steel bars is also reduced accordingly, and the displacement of the steel bars is small, avoiding the phenomenon of the concrete surface cracking caused by the rebound of the steel bars after slipforming. The side plate is pushed down by the electric cylinder to fit the ground, and with the blocking effect of the side plate, the situation of concrete side leakage is avoided. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 is a schematic structural diagram of a concrete anti-collision guardrail in the prior art;
[0017] Figure 2 is a front view structural schematic diagram of the present utility model;
[0018] Figure 3 is a front view structural schematic diagram of the present utility model;
[0019] Figure 4 is a schematic structural diagram of the hopper section of the mold and the reinforcing rib in the present utility model;
[0020] Figure 5 is a schematic structural diagram of the first connecting block and the sleeve rod in the present utility model;
[0021] Figure 6 is a schematic structural diagram of the second connecting block and the sleeve in the present utility model.
[0022] In the figure:
[0023] 1. Transverse forming section of the mold; 2. Hopper section of the mold; 3. Through groove; 4. Oil cylinder; 5. Side plate; 6. Connecting mechanism; 7. Reinforcing rib; 8. First connecting block; 9. Sleeve rod; 10. Second connecting block; 11. Sleeve; 12. Feeding and forming section; 13. Controller; 61. Connecting frame; 62. Mounting frame; 63. Mounting hole. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0025] Embodiment
[0026] Please refer to Figures 1-6 , the present invention provides a technical solution: a mold for slip form construction of a concrete anti-collision guardrail, including a transverse forming section 1 of the mold. The left side of the transverse forming section 1 of the mold is connected to a mold bin section 2. A through groove 3 is opened at the bottom of the left side wall of the mold bin section 2. Oil cylinders 4 are installed on both sides of the outer side wall of the mold bin section 2. One end of the piston rod of the oil cylinder 4 is fixedly connected to a side plate 5. A connecting mechanism 6 for connecting with a slip form paver is provided between the upper surface of the transverse forming section 1 of the mold and the right side wall of the mold bin section 2; a vibrating rod is also provided in the mold bin section 2, using existing mature technologies and not described in detail.
[0027] In this embodiment, specifically: the transverse forming section 1 of the mold is made of steel plates and sections. The designed dimensions and shapes of the inner wall of the transverse forming section 1 match the designed dimensions and shapes of the outer wall of the concrete anti-collision guardrail; the designed dimensions and shapes of the inner wall of the transverse forming section 1 can be customized according to the designed dimensions and shapes of the outer wall of the concrete anti-collision guardrail.
[0028] Under the above settings, the mold is connected and fixed to the slip form paver by means of the connecting mechanism 6. The concrete enters the transverse forming section 1 of the mold along the mold bin section 2 and is slip formed at the positions other than the designed positions of the concrete anti-collision guardrail. Since the transverse forming section 1 of the mold is placed horizontally, compared with the molds for traditional slip form construction of concrete anti-collision guardrails, the height of the forming section of the mold is greatly reduced, the aspect ratio of the forming section of the mold is greatly reduced, the concrete is not easy to collapse, there are few defects after forming, and the positions of the steel bars in the concrete guardrail are easy to fix, ensuring the qualification rate of the steel bar protection layer thickness. When forming, the front of the concrete anti-collision guardrail faces upward, greatly reducing the honeycomb and pitted surface phenomena, and the defect repair is easier, making it easier to ensure the appearance quality of the front of the concrete anti-collision guardrail, avoiding the phenomenon of the front concrete dropping after being formed by traditional mold construction. Due to the overall height reduction of the mold, the height of the steel bars also decreases accordingly, and the displacement of the steel bars is small, avoiding the phenomenon of concrete surface cracking caused by the rebound of the steel bars after slip forming. By pushing the side plate 5 downward by the oil cylinder 4 to fit the ground, the side plate 5 can play a role in blocking the concrete.
[0029] In this embodiment, specifically: there are uniformly fixed connection reinforcing ribs 7 between the upper surface of the mold transverse forming section 1 and the right side wall of the mold bin section 2; which is convenient for strengthening the connection between the mold transverse forming section 1 and the mold bin section 2.
[0030] In this embodiment, specifically: the connecting mechanism 6 includes a connecting frame 61, both ends of the connecting frame 61 are respectively fixedly connected to the upper surface of the mold transverse forming section 1 and the right side wall of the mold bin section 2, and four mounting frames 62 are symmetrically and fixedly connected to the upper surface of the connecting frame 61, and mounting holes 63 are opened on the upper surface of the mounting frames 62; the mounting frames 62 can be connected and fixed to the slipform paver through cooperation with external screws through the mounting holes 63.
[0031] In this embodiment, specifically: two connecting blocks one 8 are symmetrically and fixedly connected to the outer side wall of the side plate 5, and one end of the connecting block one 8 is fixedly connected with a sleeve rod 9; which is convenient for the sleeve rod 9 to move synchronously with the side plate 5.
[0032] In this embodiment, specifically: two connecting blocks two 10 are symmetrically and fixedly connected to the outer side walls of the mold transverse forming section 1 and the mold bin section 2, one end of the connecting block two 10 is fixedly connected with a sleeve 11, and the sleeve 11 is slidably connected with the sleeve rod 9; the sleeve rod 9 slides on the inner side wall of the sleeve 11, which can provide guidance for the movement of the side plate 5 and increase the stability of the movement of the side plate 5.
[0033] In this embodiment, specifically: the bottom of the left side wall of the mold bin section 2 is fixedly connected with a feeding and forming section 12, and the feeding and forming section 12 is communicated with the through groove 3; the feeding and forming section 12 can prevent concrete from leaking when entering the mold bin section 2.
[0034] In this embodiment, specifically: a controller 13 is installed on the front surface of the mold bin section 2 near one side of the oil cylinder 4, and the electrical output end of the controller 13 is electrically connected to the electrical input end of the oil cylinder 4 through a wire; the controller 13 is connected to the control computer in the cab of the slipform paver through the wire, which is convenient for controlling the working state of the oil cylinder 4.
[0035] The working principle of the utility model is as follows: The mold is connected and fixed to the slipform paver by means of the connecting mechanism 6. The concrete enters the transverse forming section 1 of the mold along the hopper section 2 of the mold, and is slipformed at the designed position of the non-concrete anti-collision guardrail. After forming, the concrete anti-collision guardrail can be segmented and cut by a cutting machine, moved to the designed position and erected. Since the transverse forming section 1 of the mold is placed horizontally, compared with the mold for traditional slipform construction of concrete anti-collision guardrails, the height of the forming section of the mold is greatly reduced, the aspect ratio of the height to width of the forming section of the mold is greatly reduced, the concrete is not easy to collapse, there are few defects after forming, and the position of the steel bars in the concrete guardrail is easy to fix, ensuring the qualified rate of the thickness of the steel bar protection layer. When forming, the front of the concrete anti-collision guardrail faces upward, greatly reducing the phenomenon of honeycombing and pitting, and the defect repair is easier, making it easier to ensure the appearance quality of the front of the concrete anti-collision guardrail, avoiding the phenomenon of the front concrete sagging after being formed by traditional mold construction. Since the overall height of the mold is reduced, the height of the steel bars is also reduced accordingly, and the displacement of the steel bars is small, avoiding the phenomenon of the concrete surface cracking caused by the rebound of the steel bars after slipforming. The side plate 5 is pushed down by the oil cylinder 4 to fit the ground, and with the blocking effect of the side plate 5, the situation of concrete side leakage is avoided.
[0036] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.
Claims
1. A mold for slipform construction of a concrete anti-collision guardrail, comprising a mold transverse forming section (1), characterized in that: The left side of the mold transverse forming section (1) is connected to the mold silo section (2), the bottom of the left side wall of the mold silo section (2) is provided with a through groove (3), both sides of the outer side wall of the mold silo section (2) are equipped with oil cylinders (4), one end of the piston rod of the oil cylinder (4) is fixedly connected to a side plate (5), and a connecting mechanism (6) connected to the slipform paving machine is provided between the upper surface of the mold transverse forming section (1) and the right side wall of the mold silo section (2).
2. The mold for concrete anti-collision guardrail slipform construction according to claim 1 is characterized by: The transverse forming section (1) of the mold is made of steel plates and steel sections, and the design size and shape of the inner wall of the transverse forming section (1) of the mold match the design size and shape of the outer wall of the concrete anti-collision guardrail.
3. The mold for the slipform construction of the concrete anti-collision guardrail according to claim 2 is characterized by: A reinforcing rib (7) is evenly and fixedly connected between the upper surface of the mold transverse forming section (1) and the right side wall of the mold silo section (2).
4. The mold for the slipform construction of the concrete anti-collision guardrail according to claim 3 is characterized by: The connecting mechanism (6) comprises a connecting frame (61), the two ends of which are respectively fixedly connected to the upper surface of the mold transverse forming section (1) and the right side wall of the mold silo section (2), and the upper surface of the connecting frame (61) is symmetrically fixedly connected with four mounting frames (62), and the upper surface of the mounting frames (62) is provided with mounting holes (63).
5. The mold for concrete anti-collision guardrail slipform construction according to claim 4 is characterized by: Two connecting blocks (8) are symmetrically and fixedly connected to the outer side wall of the side plate (5), and one end of the connecting block (8) is fixedly connected to a sleeve rod (9).
6. The mold for slipform construction of concrete anti-collision guardrail according to claim 5 is characterized by: The outer side walls of the mold transverse forming section (1) and the mold silo section (2) are symmetrically fixedly connected with two connecting blocks (10), one end of the connecting block (10) is fixedly connected with a sleeve (11), and the sleeve (11) is slidably connected to the sleeve rod (9).
7. The mold for slipform construction of concrete anti-collision guardrail according to claim 6 is characterized by: A feed forming section (12) is fixedly connected to the bottom of the left side wall of the mold bin section (2), and the feed forming section (12) is in communication with the through groove (3).
8. The mold for slipform construction of concrete anti-collision guardrail according to claim 7 is characterized by: A controller (13) is installed on the front surface of the mold bin section (2) on one side close to the oil cylinder (4), and the electrical output end of the controller (13) is electrically connected to the electrical input end of the oil cylinder (4) via a wire.