Edge guardrail of steel box girder
By using screw pressing devices in the side guardrail of steel box girders for connection, the problems of slow installation and removal speed and welding damage of traditional guardrails are solved, and the effects of rapid installation, safety improvement and cost reduction are achieved.
Patent Information
- Application Number
- CN202421439447.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-21
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-06-21
AI Technical Summary
The installation and disassembly of the traditional steel box girder side guardrail is slow, and the welding connection method will cause damage to the steel box girder and increase construction costs.
The screw pressing device is used to connect the guardrail poles and the steel box beam, and quickly install and remove them through U-shaped plates and compression bolts to avoid welding damage.
It improves the turnover rate and safety of the guardrail, reduces construction costs, and does not require welding connections, avoiding damage to the steel box girder.
Smart Images
Figure CN222667858U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of bridge construction, and in particular to a steel box girder edge guardrail. Background Art
[0002] After the steel box girder of a steel structure bridge is hoisted, it is necessary to install edge guardrails on both sides of the steel box girder to ensure the safety of the construction workers during the bridge deck construction. Traditional edge guardrails generally use small steel pipes or angle steel as guardrail uprights and are directly welded to the edge of the steel box girder. Two steel bars are welded between adjacent uprights as guardrail crossbars. This method is slow to install and dismantle, and will cause damage to the steel box girder. It requires beam surface treatment after welding, which is costly. Utility Model Content
[0003] An embodiment of the present application provides a steel box girder edge guardrail, which improves the guardrail turnover rate and safety and reduces construction costs.
[0004] The embodiment of the present application provides a steel box girder edge guardrail, comprising:
[0005] A plurality of guardrail uprights arranged in parallel, each of the guardrail uprights extending in a direction perpendicular to the top plate of the steel box girder;
[0006] A plurality of guardrail cross bars arranged in parallel, each of which extends in a direction parallel to the top plate of the steel box girder, and each of which is connected to at least two of the guardrail uprights;
[0007] A plurality of screw pressing devices, each of which comprises a U-shaped plate and a pressing bolt;
[0008] The U-shaped plates are arranged in one-to-one correspondence with the guardrail uprights, and each of the U-shaped plates includes a top plate, a bottom plate and a side plate, the side plate connects the top plate and the bottom plate, the top plate is fixedly connected to the lower end of the guardrail upright, the top plate is provided with bolt holes, and the bottom plate is located below the top plate of the steel box beam and is arranged in contact with the top plate of the steel box beam;
[0009] The clamping bolts are arranged in one-to-one correspondence with the positions of the bolt holes, and pass through the bolt holes to abut against the top plate of the steel box beam.
[0010] In some embodiments, the steel box girder edge guardrail also includes a plurality of limiting rings, which are welded on the guardrail uprights, and the welding positions correspond to the positions where the guardrail cross bars need to be connected, and the guardrail cross bars pass through the limiting rings and are connected to the guardrail uprights.
[0011] In some embodiments, the diameter of each of the limiting rings is equal.
[0012] In some embodiments, the top plate, the bottom plate and the side plate are integrally formed;
[0013] The side wall of the steel box girder top plate is arranged in contact with the side wall of the side plate close to the steel box girder top plate.
[0014] In some embodiments, the guardrail pole is a steel pipe, and the cross-section of the guardrail pole is circular;
[0015] The guardrail crossbar is a steel pipe, and the cross section of the guardrail crossbar is circular.
[0016] In some embodiments, at least one of the following is included:
[0017] All of the guardrail uprights have equal diameters;
[0018] All of the guardrail crossbars have equal diameters;
[0019] The diameters of all the guardrail crossbars are equal to the diameters of all the guardrail uprights.
[0020] In some embodiments, the top plate is a steel plate, the bottom plate is a steel plate, and the side plates are steel plates.
[0021] In some embodiments, the distances between adjacent guardrail crossbars are equal;
[0022] The distances between adjacent guardrail uprights are equal.
[0023] In some embodiments, at least one of the following is included:
[0024] The distance between adjacent guardrail uprights is 1500 mm;
[0025] The distance between adjacent guardrail crossbars is 350 mm;
[0026] The distance between the top plate and the guardrail crossbar close to the top plate is 400 mm.
[0027] The technical solution provided in the embodiments of the present application has at least the following beneficial effects:
[0028] The steel box girder edge guardrail provided in the embodiment of the present application includes a plurality of screw clamping devices, each of which includes a U-shaped plate and a clamping bolt, the U-shaped plate is arranged in a one-to-one correspondence with the guardrail upright, and each U-shaped plate includes a top plate, a bottom plate and a side plate, the top plate is fixedly connected to the lower end of the guardrail upright, the top plate is provided with a bolt hole, the bottom plate is located below the steel box girder top plate and is arranged in contact with the steel box girder top plate, and the clamping bolt passes through the bolt hole and abuts against the steel box girder top plate. Therefore, the steel box girder edge guardrail in the embodiment of the present application adopts a screw clamping device to ensure that the guardrail is perfectly fixed on the steel box girder, can be quickly installed and removed, improves work efficiency, thereby saving costs, and does not need to be welded to the steel box girder, reducing additional cost investment; in addition, the various components included in the steel box girder edge guardrail adopt a modular design, can be repeatedly used, and do not need to weld the guardrail upright to the steel box girder during installation, will not cause damage to the steel box girder, and achieves energy saving and environmental protection.
[0029] Additional aspects and advantages of the present application will be partially given in the following description, which will become apparent from the following description, or will be understood through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS
[0030] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:
[0031] Figure 1 A schematic diagram of the structure of a steel box girder edge guardrail provided in an embodiment of the present application;
[0032] Figure 2 A schematic structural diagram of a screw clamping device included in a steel box girder edge guardrail provided in an embodiment of the present application.
[0033] Reference numerals:
[0034] 111-guardrail upright; 112-guardrail crossbar; 11-screw clamping device; 113-U-shaped plate; 114-clamping bolt; 115-steel box girder top plate; 1131-top plate; 1132-bottom plate; 1133-side plate; 116-limiting ring. DETAILED DESCRIPTION
[0035] The present application is described in detail below, and examples of embodiments of the present application are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar components or components with the same or similar functions. In addition, if the detailed description of the known technology is unnecessary for the features of the present application shown, it will be omitted. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be interpreted as limiting the present application.
[0036] It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as generally understood by those skilled in the art to which this application belongs. It should also be understood that terms such as those defined in common dictionaries should be understood to have meanings consistent with the meanings in the context of the prior art, and will not be interpreted with idealized or overly formal meanings unless specifically defined as here.
[0037] It will be understood by those skilled in the art that, unless expressly stated, the singular forms "one", "said", and "the" used herein may also include plural forms. It should be further understood that the term "comprising" used in the specification of the present application refers to the presence of the features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof. It should be understood that when we refer to an element as being "connected" or "coupled" to another element, it may be directly connected or coupled to the other element, or there may be an intermediate element. In addition, the "connection" or "coupling" used herein may include wireless connection or wireless coupling. The term "and / or" used herein includes all or any unit and all combinations of one or more associated listed items.
[0038] With the acceleration of urbanization, various new technologies and new processes are constantly being applied to construction projects. In highway construction, steel box girders are used more and more widely. After the steel box girder is hoisted, when the bridge deck is constructed, in order to ensure the safety of construction workers, it is necessary to install edge guardrails on both sides of the steel box girder. Traditional edge guardrails have the following two problems.
[0039] First, the traditional edge guardrail is connected to the steel box beam by welding, which is slow to install and remove and will cause damage to the steel box beam; the guardrail uprights and guardrail crossbars are welded, which is slow to install and remove. Second, the traditional edge guardrail requires secondary processing of the beam surface after removal, which is costly.
[0040] In order to solve the above-mentioned problems existing in traditional edge guardrails, the embodiments of the present application provide a new steel box girder edge guardrail, which realizes the connection between the guardrail uprights and the steel box girder by setting a plurality of screw clamping devices. It is no longer necessary to weld the guardrail uprights to the steel box girder. Therefore, the guardrail uprights are easy to install and disassemble, with low cost investment, and will not cause damage to the steel box girder. It can also improve the turnover rate and safety of the guardrail and reduce construction costs.
[0041] The embodiments of the present application will be described in detail below with reference to the accompanying drawings.
[0042] The embodiment of the present application provides a steel box girder edge guardrail, such as Figure 1 and Figure 2 As shown, it includes a plurality of parallel guardrail uprights 111, a plurality of parallel guardrail crossbars 112 and a plurality of screw clamping devices 11, each screw clamping device 11 includes a U-shaped plate 113 and a clamping bolt 114; each guardrail upright 111 is arranged in a direction perpendicular to the top plate 115 of the steel box beam (i.e., along the Figure 1 Each guardrail crossbar 112 extends in a direction parallel to the top plate 115 of the steel box girder (ie, along Figure 1 The guardrail crossbar 112 extends in the horizontal direction of the steel box girder, and each guardrail crossbar 112 is connected to at least two guardrail uprights 111; the U-shaped plates 113 are arranged in a one-to-one correspondence with the guardrail uprights 111, and each U-shaped plate 113 includes a top plate 1131, a bottom plate 1132 and a side plate 1133, and the side plate 1133 connects the top plate 1131 and the bottom plate 1132, and the top plate 1131 is fixedly connected to the lower end of the guardrail upright 111, and the top plate 1131 is provided with bolt holes, and the bottom plate 1132 is located below the steel box girder top plate 115 and is in contact with the steel box girder top plate 115; the clamping bolts 114 are arranged in a one-to-one correspondence with the positions of the bolt holes, and pass through the bolt holes to abut against the steel box girder top plate 115.
[0043] It should be noted that the guardrail upright 111 can be fixedly connected to the top plate 1131 by welding.
[0044] It should be noted that the position of the bolt hole in the top plate 1131 needs to be staggered with the position where the guardrail post 111 and the top plate 1131 are welded, and the positions of the two cannot overlap, otherwise it will affect the connection between the guardrail post 111 and the top plate 1131, easily causing the guardrail post 111 to tilt or even separate from the top plate 1131.
[0045] The steel box girder edge guardrail provided in the embodiment of the present application includes a plurality of screw clamping devices, each of which includes a U-shaped plate and a clamping bolt, the U-shaped plate is arranged in a one-to-one correspondence with the guardrail upright, and each U-shaped plate includes a top plate, a bottom plate and a side plate, the top plate is fixedly connected to the lower end of the guardrail upright, the top plate is provided with a bolt hole, the bottom plate is located below the steel box girder top plate and is arranged in contact with the steel box girder top plate, and the clamping bolt passes through the bolt hole and abuts against the steel box girder top plate. Therefore, the steel box girder edge guardrail in the embodiment of the present application adopts a screw clamping device to ensure that the guardrail is perfectly fixed on the steel box girder, can be quickly installed and removed, improves work efficiency, thereby saving costs, and does not need to be welded to the steel box girder, reducing additional cost investment; in addition, the various components included in the steel box girder edge guardrail adopt a modular design, can be repeatedly used, and do not need to weld the guardrail upright to the steel box girder during installation, will not cause damage to the steel box girder, and achieves energy saving and environmental protection.
[0046] In an optional embodiment, if Figure 1As shown, the steel box girder edge guardrail provided in the embodiment of the present application also includes a plurality of limiting rings 116, which are welded to the guardrail uprights 111, and the welding positions correspond to the positions where the guardrail crossbars 112 need to be connected, and the guardrail crossbars 112 pass through the limiting rings 116 to be connected to the guardrail uprights 111; limiting rings 116 are provided on the guardrail uprights 111 to fix the guardrail crossbars 112, thereby improving the versatility and turnover rate of the materials, and making the entire installation process of the steel box girder edge guardrail free of welding, thereby achieving energy saving and environmental protection.
[0047] It should be noted that a plurality of limiting rings 116 at different positions can be welded on each guardrail upright 111. After welding, when the clamping bolt passes through the bolt hole and abuts against the top plate of the steel box beam, the limiting rings 116 at the same position of each guardrail upright 111 are located in the same horizontal plane. Figure 1 As shown, three limiting rings 116 are welded on each guardrail upright 111, which are respectively the first limiting ring, the second limiting ring and the third limiting ring from bottom to top. The first limiting ring welded on each guardrail upright 111 is located in the same horizontal plane and is used to fix the first guardrail crossbar 112 ( Figure 1 The guardrail crossbar 112 near the screw pressing device 11), the second limiting ring welded on each guardrail upright 111 is located in the same horizontal plane, and is used to fix the second guardrail crossbar 112 ( Figure 1 The guardrail crossbar 112 in the middle position), the third limiting ring welded on each guardrail upright 111 is located in the same horizontal plane, and is used to fix the third guardrail crossbar 112 ( Figure 1 The uppermost guardrail crossbar 112).
[0048] In a specific embodiment, Figure 1 As shown, the diameters of each limiting ring 116 provided in the embodiment of the present application are equal.
[0049] It should be noted that the diameter of the limiting ring 116 is set according to actual production needs. The specific value of the diameter of the limiting ring 116 is not limited here. During actual production, the diameter of the limiting ring 116 can be set according to the diameter of the guardrail cross bar 112, as long as the guardrail cross bar 112 can pass through the limiting ring 116.
[0050] In a specific embodiment, Figure 2 As shown, the top plate 1131, the bottom plate 1132 and the side plate 1133 are integrally formed; the side wall of the steel box girder top plate 115 is in contact with the side plate 1133 near the side wall of the steel box girder top plate 115; the setting method of the side wall of the steel box girder top plate 115 and the side plate 1133 being in contact with the side wall of the steel box girder top plate 115 can better realize the fixed connection between the guardrail upright 111 and the steel box girder.
[0051] In a specific implementation, the top plate 1131 , the bottom plate 1132 and the side plates 1133 are formed at one time in the same casting process.
[0052] In an optional embodiment, if Figure 1 As shown, the guardrail upright 111 is a steel pipe, and the cross section of the guardrail upright 111 is circular; the guardrail cross bar 112 is a steel pipe, and the cross section of the guardrail cross bar 112 is circular; the embodiment of the application uses steel pipes with circular cross sections to form the guardrail upright 111 and the guardrail cross bar 112, which makes material selection more convenient and can save production costs.
[0053] In a specific embodiment, Figure 1 As shown, the diameters of all guardrail uprights 111 are equal; the diameters of all guardrail crossbars 112 are equal; and the diameters of all guardrail crossbars 112 are equal to the diameters of all guardrail uprights 111 .
[0054] In a specific embodiment, Figure 2 As shown, the top plate 1131 is a steel plate, the bottom plate 1132 is a steel plate, and the side plate 1133 is a steel plate; the U-shaped plate in the embodiment of the present application is formed of a steel plate, which is more convenient in material selection and can save production costs.
[0055] In a specific embodiment, Figure 1 As shown, the distances between adjacent guardrail crossbars 112 are equal; the distances between adjacent guardrail uprights 111 are equal; the guardrail formed by this arrangement is more practical and its appearance is more in line with the user's aesthetic taste.
[0056] In a specific embodiment, Figure 1 As shown, the distance L1 between adjacent guardrail uprights 111 is 1500 mm; the distance L2 between adjacent guardrail crossbars 112 is 350 mm; the distance L3 between the top plate 1131 and the guardrail crossbar 112 close to the top plate 1131 is 400 mm; only one specific embodiment of L1, L2 and L3 is given here. In the actual production process, the values of L1, L2 and L3 can also be other values. The embodiments of the present application do not limit the specific values of L1, L2 and L3. The specific values of L1, L2 and L3 can be set according to actual production needs.
[0057] The principle of the steel box girder edge guardrail provided in the embodiment of the present application is: when the guardrail is processed, a set of screw clamping devices 11 are welded at the bottom of the guardrail upright 111 in advance, and the screw clamping device 11 is composed of a U-shaped plate 113 and a clamping bolt 114. Bolt holes are opened on the top plate 1131. The setting of the bolt holes can clamp the clamping bolts 114 on the steel box girder top plate 115 during installation to fix the entire guardrail structure; secondly, a limiting ring 116 is set on the guardrail upright 111, and the limiting ring 116 is used to fix the guardrail cross bar 112. In this way, the installation and removal of the entire steel box girder edge guardrail can be quick, safe and reliable.
[0058] The method for using the steel box girder edge guardrail provided in the embodiment of the present application is as follows: the first step is to process the guardrail, weld the bottom of the guardrail upright 111 to the screw clamping device 11 firmly, and weld the limiting ring 116 to the designed position of the guardrail upright 111; the second step is to paint the guardrail upright 111 and the guardrail cross bar 112 with paint to achieve an anti-rust effect; the third step is to transport the various components of the guardrail to the construction site; the fourth step is to install the guardrail upright 111, and during installation, ensure that the clamping bolt 114 is pressed against the steel box girder top plate 115; the fifth step is to install the guardrail cross bar 112 to complete the guardrail installation.
[0059] In order to ensure the feasibility of this application, the various components of the guardrail are processed in the processing plant according to the design drawings and transported to the construction site for actual use verification. The overall construction stability of the guardrail is good, the assembly speed is fast, the assembly process is standardized, and the safety risks of high-altitude edge operations of steel box girders are reduced.
[0060] In summary, by applying the embodiments of the present application, at least the following beneficial effects can be achieved:
[0061] The steel box girder edge guardrail provided in the embodiment of the present application includes a plurality of screw clamping devices, each of which includes a U-shaped plate and a clamping bolt, the U-shaped plate is arranged in a one-to-one correspondence with the guardrail upright, and each U-shaped plate includes a top plate, a bottom plate and a side plate, the top plate is fixedly connected to the lower end of the guardrail upright, the top plate is provided with a bolt hole, the bottom plate is located below the steel box girder top plate and is arranged in contact with the steel box girder top plate, and the clamping bolt passes through the bolt hole and abuts against the steel box girder top plate. Therefore, the steel box girder edge guardrail in the embodiment of the present application adopts a screw clamping device to ensure that the guardrail is perfectly fixed on the steel box girder, can be quickly installed and removed, improves work efficiency, thereby saving costs, and does not need to be welded to the steel box girder, reducing additional cost investment; in addition, the various components included in the steel box girder edge guardrail adopt a modular design, can be repeatedly used, and do not need to weld the guardrail upright to the steel box girder during installation, will not cause damage to the steel box girder, and achieves energy saving and environmental protection.
[0062] In addition, under the premise of meeting the specifications and construction site requirements, the embodiments of the present application optimize the materials used and unify the design. Limiting rings are provided on the guardrail uprights to fix the guardrail crossbars, thereby improving the versatility and turnover rate of the materials. There is no welding in the entire installation process, thereby achieving energy conservation and environmental protection.
[0063] Those skilled in the art will appreciate that the various operations, methods, steps, measures, and schemes in the processes discussed in this application may be alternated, altered, combined, or deleted. Further, other steps, measures, and schemes in the various operations, methods, and processes discussed in this application may also be alternated, altered, rearranged, decomposed, combined, or deleted. Further, the steps, measures, and schemes in the prior art that are similar to those disclosed in this application may also be alternated, altered, rearranged, decomposed, combined, or deleted.
[0064] In the description of the present application, the directions or positional relationships indicated by words such as "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the exemplary directions or positional relationships shown in the accompanying drawings. They are for the convenience of describing or simplifying the description of the embodiments of the present application, and do not indicate or imply that the referred device or component must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present application.
[0065] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.
[0066] The above description is only a partial implementation method of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.
Claims
1. A steel box girder edge guardrail, characterized in that: include: A plurality of guardrail uprights arranged in parallel, each of the guardrail uprights extending in a direction perpendicular to the top plate of the steel box girder; A plurality of guardrail cross bars arranged in parallel, each of which extends in a direction parallel to the top plate of the steel box girder, and each of which is connected to at least two of the guardrail uprights; A plurality of screw pressing devices, each of which comprises a U-shaped plate and a pressing bolt; The U-shaped plates are arranged in one-to-one correspondence with the guardrail uprights, and each of the U-shaped plates includes a top plate, a bottom plate and a side plate, the side plate connects the top plate and the bottom plate, the top plate is fixedly connected to the lower end of the guardrail upright, the top plate is provided with bolt holes, and the bottom plate is located below the top plate of the steel box beam and is arranged in contact with the top plate of the steel box beam; The clamping bolts are arranged in one-to-one correspondence with the positions of the bolt holes, and pass through the bolt holes to abut against the top plate of the steel box beam.
2. The steel box girder edge guardrail according to claim 1, characterized in that: It also includes a plurality of limiting rings, which are welded on the guardrail uprights, and the welding positions correspond to the positions where the guardrail crossbars need to be connected, and the guardrail crossbars pass through the limiting rings and are connected to the guardrail uprights.
3. The steel box girder edge guardrail according to claim 2, characterized in that: The diameter of each of the limiting rings is equal.
4. The steel box girder edge guardrail according to claim 1, characterized in that: The top plate, the bottom plate and the side plate are integrally formed; The side wall of the steel box girder top plate is arranged in contact with the side wall of the side plate close to the steel box girder top plate.
5. The steel box girder edge guardrail according to claim 1, characterized in that: The guardrail upright pole is a steel pipe, and the cross section of the guardrail upright pole is circular; The guardrail crossbar is a steel pipe, and the cross section of the guardrail crossbar is circular.
6. The steel box girder edge guardrail according to claim 5, characterized in that: Include at least one of the following: All of the guardrail uprights have equal diameters; All of the guardrail crossbars have equal diameters; The diameters of all the guardrail crossbars are equal to the diameters of all the guardrail uprights.
7. The steel box girder edge guardrail according to claim 1, characterized in that: The top plate is a steel plate, the bottom plate is a steel plate, and the side plates are steel plates.
8. The steel box girder edge guardrail according to claim 1, characterized in that: The distances between adjacent guardrail crossbars are equal; The distances between adjacent guardrail uprights are equal.
9. The steel box girder edge guardrail according to claim 8, characterized in that: Include at least one of the following: The distance between adjacent guardrail uprights is 1500 mm; The distance between adjacent guardrail crossbars is 350 mm; The distance between the top plate and the guardrail crossbar close to the top plate is 400 mm.