Bridge prestress protection device

Abstract

The utility model provides a bridge prestress protection device which comprises a plurality of rectangular cushion blocks arranged on the ground, a beam section placed on the cushion blocks, a plurality of base holes formed in the section of the beam section and anchorage devices arranged in the base holes respectively. The multiple sets of prestressed steel bars are connected to the multiple anchorage devices correspondingly, the multiple sets of prestressed steel bars are sleeved with the multiple sets of prestressed steel bars correspondingly, and the multiple corrugated pipes are located in the multiple base holes correspondingly, the moisturizing mechanisms are arranged on the beam sections, and the inner protecting assemblies are arranged between the single set of prestressed steel bars and the single corrugated pipe; the sealing assemblies are respectively arranged on the plurality of groups of prestressed reinforcements and the plurality of corrugated pipes; according to the bridge prestress protection device, the quality of a prestress construction project can be comprehensively and integrally improved, the service life of a prestress structure can be comprehensively and integrally prolonged, and it is ensured that the prestress structure can play a better and more stable effect.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge prestressing, in particular to a bridge prestressing protection device. Background Art

[0002] With the continuous development and progress of modern engineering technology, the application of prestressed technology in bridge construction has become more and more extensive. Prestressed technology is an advanced structural reinforcement technology that can improve the bearing capacity and service life of bridges and ensure the safety of traffic operation.

[0003] In bridge construction, prestressing technology is mainly used to improve the bearing capacity and service life of the bridge. By applying prestressing, the tensile stress generated by the structure during use can be effectively offset, cracks and deformation of the structure can be avoided, and the rigidity and stability of the bridge can be improved.

[0004] Prestressed corrugated pipes are an important part of prestressed concrete structure technology. Their main function is to protect the internal prestressed steel bars from being contaminated during the initial pouring to ensure the final tensioning quality. However, in the actual construction process, the quality of the corrugated pipes selected by some construction units does not meet the requirements, and the corrugated pipes themselves have some damage. In addition, the friction of concrete during construction and the influence of construction tools such as vibrators can easily damage the plastic corrugated pipes and cause cracks. Once the corrugated pipes are damaged, concrete will enter the corrugated pipes and contaminate the prestressed steel bars, and may even cause pipe blockage. In addition, in daily operation, since the pressure is greater than the bearing capacity of the prestressed structure, problems will occur in the internal structure of the prestressed structure. As the external pressure has an increasing impact on the prestressed structure, cracks will appear. Coupled with the influence of other unfavorable factors, the probability of fracture will be further increased, thereby causing the overall quality and service life of the construction project to be potentially threatened. Utility Model Content

[0005] The utility model aims to provide a bridge prestressed protection device to solve the above problems.

[0006] In order to achieve the above-mentioned purpose, the embodiment of the utility model provides a bridge prestressed protection device, comprising: a plurality of rectangular pads arranged on the ground, a beam section placed on the plurality of said pads, a plurality of base holes arranged on the cross section of the beam section, anchors arranged in the plurality of said base holes respectively, a plurality of groups of prestressed steel bars respectively connected to the plurality of said anchors, a plurality of corrugated pipes respectively sleeved on the plurality of groups of said prestressed steel bars and respectively located in the plurality of said base holes, a moisturizing mechanism arranged on the beam section, an internal protection component arranged between a single group of said prestressed steel bars and a single said corrugated pipe, and sealing components respectively arranged on the plurality of groups of said prestressed steel bars and the plurality of said corrugated pipes;

[0007] The moisturizing mechanism is arranged vertically and horizontally on the cross section of the beam segment, wherein:

[0008] The moisturizing mechanism is suitable for continuously delivering water to the cross section of the beam section and secreting water outward at multiple points;

[0009] The sealing assembly is suitable for completely sealing the outer ends of several groups of the prestressed steel bars and several of the corrugated tubes.

[0010] Furthermore, the moisturizing mechanism includes a water collecting tank installed on the side of the beam section, a main pipe and two auxiliary pipes buried in the cross section of the beam section, and the two auxiliary pipes are in a corner shape and connected to the main pipe from below, a plurality of exudation holes are provided on the main pipe and the two auxiliary pipes, and two water pipes connecting the main pipe to the water collecting tank;

[0011] The main pipe and the two auxiliary pipes are flush with the cross section of the beam section;

[0012] The plurality of exocrine pores are respectively located around the plurality of basal pores.

[0013] Furthermore, a first filter element and a second filter element are installed in the water collection tank from top to bottom.

[0014] Furthermore, the inner protection component includes an annular baffle inserted between the prestressed steel bar and the corrugated pipe, and two ear handles symmetrically installed at the ends of the annular baffle.

[0015] Furthermore, the sealing assembly includes an externally threaded sleeve that fits snugly around the end of the bellows, and a plurality of holes are opened on the circumference of the externally threaded sleeve, a plurality of hexagon socket screws are screwed on the externally threaded sleeve and pass through the plurality of holes on the externally threaded sleeve, and an end cap is screwed on the externally threaded sleeve.

[0016] Furthermore, the bellows is inserted inwardly into the anchor.

[0017] Furthermore, a bridge prestressed protection device also includes a platform placed on the ground, a winch arranged on the platform, and two cables with one end arranged on the winch and the other end respectively connected to the two ear handles.

[0018] Furthermore, the plurality of holes formed on the externally threaded sleeve are countersunk holes.

[0019] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0020] 1. The bridge prestressed steel protection device can continuously and slowly transport water to the cross section of the beam section without affecting the connection between multiple beam sections through the moisturizing mechanism, especially focusing on moistening the area around several groups of prestressed steel bars, thereby ensuring the wettability of the entire prestressed structure during daily construction, so as to reduce the probability of cracks caused by dryness, and further reduce the possibility of fractures caused by changes in the prestressed structure as much as possible. At the same time, the moisturizing mechanism uses rainwater collected in daily life as a water source, which can improve resource utilization;

[0021] 2. The bridge prestressed steel protection device can form a circumferential protection inside the corrugated pipe again during construction through the internal protection component, so as to ensure that even if the corrugated pipe is damaged or cracked, the prestressed steel bars can still be well protected, effectively preventing concrete from entering the corrugated pipe and contaminating the prestressed steel bars, thereby ensuring the subsequent tensioning quality;

[0022] 3. The bridge prestressed steel protection device can completely seal the end of the prestressed steel bar and the corrugated pipe exposed outside the beam section through the sealing component, thereby ensuring that it is isolated from the outside world, effectively reducing the transfer and erosion of corrosive substances to the inside, and thus achieving a good maintenance effect, slowing down the aging speed of the prestressed steel bar tendons and the probability of prestressed steel bar tendons breaking;

[0023] 4. The bridge prestressed protection device can comprehensively improve the quality of prestressed construction projects and the service life of prestressed structures, ensuring that the prestressed structures can produce better and more stable effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0025] Figure 1 Shows a stereogram of the utility model;

[0026] Figure 2 Shows a front view of the utility model;

[0027] Figure 3 A partial stereogram of the utility model is shown;

[0028] Figure 4 The utility model is shown Figure 1 A magnified image of point A;

[0029] Figure 5 The utility model is shown Figure 1 The enlarged view of point B;

[0030] Figure 6 The utility model is shown Figure 2 Enlarged view of point C;

[0031] Figure 7 The utility model is shown Figure 3 The enlarged view of point D;

[0032] Figure 8 The utility model is shown Figure 3 Enlarged view of point E.

[0033] In the figure

[0034] 1. Ground; 2. Pad; 3. Beam section; 4. Base hole; 5. Anchor; 6. Prestressed steel bar; 7. Bellows; 8. Moisturizing mechanism; 81. Water collecting trough; 811. First filter element; 812. Second filter element; 82. Main pipeline; 83. Auxiliary pipeline; 84. External leakage hole; 85. Water pipe; 9. Internal protection component; 91. Ring baffle; 92. Ear handle; 10. Sealing component; 101. External threaded sleeve; 102. Hexagon socket screw; 103. End cover; 11. Platform; 12. Winch; 13. Cable. DETAILED DESCRIPTION

[0035] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0036] See also Figure 1 , Figure 1 Shows a three-dimensional diagram of the utility model; please refer to Figure 2 , Figure 2 Shows the front view of the utility model; please refer to Figure 3 , Figure 3 Shows a partial stereogram of the utility model; please refer to Figure 4 , Figure 4 The utility model is shown Figure 1 See the enlarged view of point A in Figure 5 , Figure 5 The utility model is shown Figure 1 See the enlarged view of point B in Figure 6 , Figure 6 The utility model is shown Figure 2 See the enlarged view of point C in Figure 7 , Figure 7 The utility model is shown Figure 3 See the enlarged view of D in Figure 8 , Figure 8 The utility model is shown Figure 3 The enlarged view of point E; Figure 1-8As shown, a bridge prestressed protection device comprises: a plurality of rectangular pads 2 arranged on the ground 1, a beam section 3 placed on the plurality of pads 2, a plurality of base holes 4 arranged on the cross section of the beam section 3, anchors 5 arranged in the plurality of base holes 4, a plurality of groups of prestressed steel bars 6 connected to the plurality of anchors 5, a plurality of corrugated tubes 7 respectively sleeved on the plurality of groups of prestressed steel bars 6 and respectively located in the plurality of base holes 4, a moisturizing mechanism 8 arranged on the beam section 3, an internal protection component 9 arranged between a single group of prestressed steel bars 6 and a single corrugated tube 7, and a sealing component 10 respectively arranged on the plurality of groups of prestressed steel bars 6 and the plurality of corrugated tubes 7;

[0037] The moisturizing mechanism 8 is arranged vertically and horizontally on the cross section of the beam section 3, wherein:

[0038] The moisturizing mechanism 8 is suitable for continuously delivering water to the cross section of the beam section 3 and secreting water outward at multiple points;

[0039] The sealing component 10 is suitable for completely sealing the outer ends of several groups of the prestressed steel bars 6 and several of the corrugated tubes 7. The bridge prestressed protection device can continuously and slowly transport water to the cross section of the beam section 3 without affecting the mutual connection of multiple beam sections 3 through the moisturizing mechanism 8, especially to focus on moistening the area around several groups of prestressed steel bars 6, thereby ensuring the wettability of the entire prestressed structure during daily construction, so as to reduce the probability of cracks caused by dry factors, and thus minimize the possibility of fractures caused by changes in the prestressed structure; through the internal protection component 9, a circumferential protection can be formed again inside the corrugated tube 7 during construction, so as to ensure that even if the corrugated tube 7 is damaged, When there are problems such as cracks, the prestressed steel bars 6 can still be well protected, effectively preventing concrete from entering the corrugated pipe 7 and contaminating the prestressed steel bars 6, thereby ensuring the subsequent tensioning quality; the sealing component 10 can completely seal the end of the prestressed steel bars 6 and the corrugated pipe 7 exposed outside the beam section 3, thereby ensuring that they are isolated from the outside world, so as to effectively reduce the transfer and erosion of corrosive substances to the inside, thereby achieving a good maintenance effect, slowing down the aging speed of the prestressed steel bar 6 bundles and the probability of the prestressed steel bar 6 bundles breaking; the bridge prestressing protection device can comprehensively improve the quality of prestressed construction projects and the service life of prestressed structures as a whole, ensuring that the prestressed structures can play a better and more stable effect.

[0040] Optionally, the moisturizing mechanism 8 includes a water collecting tank 81 installed on the side of the beam section 3, a main pipe 82 and two auxiliary pipes 83 buried in the cross section of the beam section 3, and the two auxiliary pipes 83 are in a corner shape and connected to the main pipe 82 from below, a plurality of exudate holes 84 are provided on the main pipe 82 and the two auxiliary pipes 83, and two water pipes 85 connecting the main pipe 82 to the water collecting tank 81;

[0041] The main pipe 82 and the two auxiliary pipes 83 are flush with the cross section of the beam section 3, ensuring that the main pipe 82 and the two auxiliary pipes 83 are embedded in the beam section 3 to prevent them from protruding from the cross section of the beam section 3 and causing obstacles to the subsequent splicing and installation of the beam section 3;

[0042] The plurality of exudate holes 84 are respectively located around the plurality of base holes 4, and the two water pipes 85 guide the water in the water collection tank 81 into the main pipe 82, and then divide it into the two auxiliary pipes 83, and discharge the water in the pipe outward through the plurality of exudate holes 84 on the main pipe 82 and the two auxiliary pipes 83, so that the water contacts the cross section of the beam section 3, and the distribution position of the plurality of exudate holes 84 ensures that the water is mainly transported to the periphery of the plurality of groups of prestressed steel bars 6, thereby ensuring the wettability of the entire prestressed structure during the daily construction process through continuous wetting, so as to reduce the moisture caused by dryness. The probability of causing cracks to occur, thereby reducing the possibility of fractures caused by changes inside the prestressed structure as much as possible; at the same time, the trough 81 collects rainwater in daily life, and the collected rainwater is used for moisturizing protection, thereby greatly improving resource utilization and achieving good environmental protection effects; the diameters of the several exudate holes 84 cannot be too large, and it is only necessary to ensure that water can slowly seep out from the main pipe 82 and the two auxiliary pipes 83, so as to prevent the rainwater collected in the trough 81 from being consumed too quickly due to water leakage, thereby ensuring the long-term sustainability of the wetting effect on the beam section 3.

[0043] Optionally, a first filter element 811 and a second filter element 812 are installed in the water collection tank 81 from top to bottom, and the filtration level of the second filter element 812 is higher than that of the first filter element 811; the first filter element 811 realizes the first layer of filtration to prevent excessively large debris such as dead branches and leaves from entering the water collection tank 81 and causing blockage, and the second filter element 812 performs fine filtering on the water entering the water collection tank 81 to prevent a large amount of small particles of mud and sand from accumulating inside the main pipe 82 and the two auxiliary pipes 83 under long-term wetting, resulting in the inability of water to seep out well, or a large amount of mud and sand from blocking the cross-section of the beam section 3, resulting in a decrease in the wetting effect of the water.

[0044] Optionally, the internal protection component 9 includes an annular baffle 91 inserted between the prestressed steel bar 6 and the corrugated tube 7, and two ear handles 92 symmetrically installed at the ends of the annular baffle 91. After a group of prestressed steel bars 6 are buried and the corrugated tube 7 is inserted into the base hole 4 and sleeved on the prestressed steel bars 6, the two ear handles 92 are held to insert the annular baffle 91 between the prestressed steel bars 6 and the corrugated tube 7, so that the annular baffle 91 is attached to the inner wall of the corrugated tube 7, thereby ensuring that a circumferential protection is formed again inside the corrugated tube 7 during construction, ensuring that even when the corrugated tube 7 is damaged and has cracks and other problems, the prestressed steel bars 6 can still be well protected, effectively preventing concrete from entering the corrugated tube 7 and contaminating the prestressed steel bars 6, thereby ensuring the subsequent tensioning quality.

[0045] Optionally, the sealing assembly 10 includes an externally threaded sleeve 101 that fits snugly onto the end of the bellows 7, and a plurality of holes are opened on the circumference of the externally threaded sleeve 101, a plurality of hexagon socket screws 102 are screwed onto the externally threaded sleeve 101 and penetrate the bellows 7 through the plurality of holes on the externally threaded sleeve 101, and an end cap 103 is screwed onto the externally threaded sleeve 101. After completing the tensioning of a group of prestressed steel bars 6, the externally threaded sleeve 101 is first passed through the prestressed steel bars 6 and sleeved onto the bellows 7, and then a tool such as an impact drill is used to drill holes in the concrete structure inside the bellows 7 through the holes on the circumference of the externally threaded sleeve 101, and then the plurality of hexagon socket screws 102 are installed into corresponding positions. The arrangement ensures that the external threaded sleeve 101 is fixed on the corrugated tube 7, and finally the end cover 103 is installed on the external threaded sleeve 101 until it is tightened, so that the ends of the prestressed steel bar 6 and the corrugated tube 7 exposed to the outside are completely covered, and they are isolated from the outside to achieve sealing, so as to effectively reduce the transfer and erosion of corrosive substances to the inside of the prestressed steel bar 6 and the corrugated tube 7, thereby achieving a good maintenance effect, slowing down the aging speed of the prestressed steel bar 6 bundles and the probability of fracture of the prestressed steel bar 6 bundles, effectively improving the overall construction quality of the prestressed structure and extending its service life; the spirally installed end cover 103 has a good sealing effect while ensuring convenience, ensuring that construction personnel can quickly remove the end cover 103 to observe the status of the prestressed steel bar 6 bundles.

[0046] Optionally, the corrugated tube 7 is inserted inwardly into the anchor 5, and an insertion groove for the corrugated tube 7 is reserved on the anchor 5 to ensure that the corrugated tube 7 can be inserted into the anchor 5, so that the corrugated tube 7 can be more deeply combined with the anchor 5, thereby improving the protection level of the other end of the corrugated tube 7 and further preventing concrete from entering the corrugated tube 7 and contaminating the prestressed steel bars 6.

[0047] Optionally, a bridge prestressed protection device further comprises a platform 11 placed on the ground 1, a winch 12 arranged on the platform 11, and two cables 13 with one end arranged on the winch 12 and the other end respectively connected to the two ear handles 92. After the preliminary pouring and tensioning are completed, the platform 11 and the winch 12 are placed in a suitable position, and then the two cables 13 are respectively tied to the two ear handles 92, and then the winch 12 is started to reel in the two cables 13, so that the ring baffle 91 is slowly removed from the corrugated pipe 7. Pull it out, and after all the ring baffles 91 are taken out, concrete is poured into the corrugated pipe 7 for grouting, so that the prestressed steel bar 6 bundles and the beam section 3 are consolidated to ensure that a complete unit with overall force is formed, and the existence of the ring baffle 91 in the middle is prevented from affecting the integrity between the prestressed steel bar 6 bundles and the beam section 3, thereby ensuring the overall construction quality of the prestressed structure; using the winch 12 as the force-applying end can ensure that even if concrete enters and causes a certain degree of condensation between the ring baffle 91 and the corrugated pipe 7, the ring baffle 91 can be smoothly taken out.

[0048] Optionally, the several holes opened on the externally threaded sleeve 101 are countersunk holes, ensuring that when installing several hexagon socket screws 102, they can be sunk into the externally threaded sleeve 101 without protruding outwards, thereby ensuring that the end cover 103 can be smoothly and completely installed on the externally threaded sleeve 101.

[0049] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A bridge prestressed protection device, characterized in that: include: A plurality of rectangular pads (2) arranged on the ground (1), a beam section (3) placed on the plurality of pads (2), a plurality of base holes (4) arranged on the cross section of the beam section (3), anchors (5) arranged in the plurality of base holes (4), a plurality of groups of prestressed steel bars (6) connected to the plurality of anchors (5), a plurality of corrugated tubes (7) respectively sleeved on the plurality of groups of prestressed steel bars (6) and respectively located in the plurality of base holes (4), a moisture retaining mechanism (8) arranged on the beam section (3), an internal protection component (9) arranged between a single group of prestressed steel bars (6) and a single corrugated tube (7), and a sealing component (10) respectively arranged on the plurality of groups of prestressed steel bars (6) and the plurality of corrugated tubes (7); The moisturizing mechanism (8) is arranged vertically and horizontally on the cross section of the beam section (3), wherein: The moisturizing mechanism (8) is suitable for continuously delivering water to the cross section of the beam section (3) and secreting water outward at multiple points; The sealing assembly (10) is suitable for completely sealing the outer ends of a plurality of groups of the prestressed steel bars (6) and a plurality of the corrugated tubes (7).

2. A bridge prestressed protection device as claimed in claim 1, characterized in that: The moisturizing mechanism (8) comprises a water collecting trough (81) installed on the side of the beam section (3), a main pipeline (82) and two auxiliary pipelines (83) buried in the cross section of the beam section (3), wherein the two auxiliary pipelines (83) are in a corner shape and are connected to the main pipeline (82) from below, a plurality of exudation holes (84) are provided on the main pipeline (82) and the two auxiliary pipelines (83), and two water pipes (85) connecting the main pipeline (82) to the water collecting trough (81); The main pipe (82) and the two auxiliary pipes (83) are flush with the cross section of the beam section (3); The plurality of exocrine pores (84) are respectively located around the plurality of base pores (4).

3. A bridge prestressed protection device as claimed in claim 2, characterized in that: A first filter element (811) and a second filter element (812) are installed in the water collection tank (81) from top to bottom.

4. A bridge prestressed protection device as claimed in claim 3, characterized in that: The inner protection component (9) comprises an annular baffle (91) inserted between the prestressed steel bar (6) and the corrugated pipe (7), and two ear handles (92) symmetrically mounted on the ends of the annular baffle (91).

5. A bridge prestressed protection device as claimed in claim 4, characterized in that: The sealing assembly (10) comprises an externally threaded sleeve (101) which fits snugly onto the end of the bellows (7), and a plurality of holes are provided on the circumference of the externally threaded sleeve (101), a plurality of hexagon socket screws (102) are screwed onto the externally threaded sleeve (101) through the holes on the externally threaded sleeve (101) and penetrate the bellows (7), and an end cap (103) is screwed onto the externally threaded sleeve (101).

6. A bridge prestressed protection device as claimed in claim 5, characterized in that: The bellows (7) is inserted inwardly into the anchor (5).

7. A bridge prestressed protection device as claimed in claim 6, characterized in that: A bridge prestressed protection device also includes a platform (11) placed on the ground (1), a winch (12) arranged on the platform (11), and two cables (13) with one end arranged on the winch (12) and the other end respectively connected to the two ear handles (92).

8. A bridge prestressed protection device as claimed in claim 7, characterized in that: The plurality of holes formed on the externally threaded sleeve (101) are countersunk holes.

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