Cast-in-place beam hanging basket cantilever casting bottom-holding protection device used for crossing existing road

Abstract

The utility model relates to a cast-in-place beam hanging basket cantilever casting bottom-carrying protection device for crossing an existing road. The cast-in-place beam hanging basket cantilever casting bottom-carrying protection device comprises a lower cross beam, a lower hanging rod, a lifting beam, a distribution cross beam, a panel and a bottom-carrying guardrail. The two lower cross beams are arranged in a staggered mode, the bottom support is arranged to be a formwork, and one end of the bottom support abuts against the bottom of a box girder body. One end of the lower hanging rod is connected to the lower cross beam, the other end of the lower hanging rod is connected to the lifting beam, the distribution cross beam is fixedly arranged on the lifting beam, the panel is fixedly connected to the upper portion of the distribution cross beam, the periphery of the panel exceeds the periphery of the bottom support, and the periphery of the panel is provided with a bottom-carrying guardrail; and the hanging basket can be subjected to bottom holding protection, and construction and later maintenance are facilitated.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bridge road construction, and particularly relates to a bottom-digging protection device for cantilever casting of a hanging basket for cast-in-situ beam across an existing road. BACKGROUND

[0002] In the construction of overline bridges, safety is of paramount importance, especially to ensure the safety of road traffic and construction personnel below. Although the traditional protective shed frame can provide protection to a certain extent, it has many limitations in application. For example, the erection and removal of the shed frame requires multiple traffic lane closures, which not only affects traffic flow, but also increases the complexity and difficulty of construction. In addition, the later removal process of the shed frame is also difficult, resulting in unsatisfactory overall application effect. In order to solve these problems, modern overline bridge construction increasingly uses bottom-digging protection technology. This technology sets up a protective platform below the construction area, effectively preventing falling objects during construction from causing harm to road traffic and construction personnel below. Bottom-digging protection not only provides comprehensive safety protection, but also reduces traffic interference and improves construction flexibility and efficiency. Its versatility makes the protective platform not only a protective facility, but also a construction platform, thereby improving the overall quality and progress of construction.

[0003] In the prior art, the traditional hanging basket is suspended by cantilever supports, and corresponding longitudinal beams and transverse beams are arranged at the bottom, and then corresponding boards are laid on the beams to form a construction platform. For example, the authorized announcement No. CN219175042U, the application name is a continuous beam hanging basket full-closed protection system across the road, which is a kind of structure for protection, and specifically relates to a continuous beam hanging basket full-closed protection system across the road; it includes front upper transverse beam lateral cantilever support, front upper transverse beam longitudinal cantilever support, side closure assembly, front closure assembly, bottom-digging guardrail; the side closure assembly includes side closure suspension longitudinal beam, side vertical rod, side horizontal rod, side inclined rod, side protective net plate; the side closure suspension longitudinal beam is suspended and connected with the front upper transverse beam lateral cantilever support and the front transverse connection of the hanging basket by using precision rolled threaded steel and nuts; the front closure assembly includes front closure suspension transverse beam, front vertical rod, front horizontal rod, front inclined rod, front protective net plate; the front closure suspension transverse beam is suspended and connected with the front upper transverse beam longitudinal cantilever support by using precision rolled threaded steel and nuts; the bottom-digging guardrail is arranged at the bottom of the hanging basket, and the bottom-digging guardrail is connected with the bottom longitudinal beam of the hanging basket by using precision rolled threaded steel and nuts; it can solve the problems of affecting line traffic, inconvenience and insecurity during traditional hanging basket construction.

[0004] However, in actual use, it is found that for the inclined box girder, the suspended lower transverse beam has a height difference, which makes the construction platform extremely inconvenient, and the workable area is small, and the waste or materials during work on it still have the risk of falling, and more importantly, it is not convenient to maintain the platform. Utility Model Content

[0005] In order to solve or partially solve the problems existing in the related art, the present application provides a bottom protection device for cantilever casting of cast-in-place beams hanging basket across existing roads, which can provide bottom protection for the hanging basket and facilitate construction and subsequent maintenance.

[0006] The present application discloses a bottom protection device for cantilever casting of cast-in-situ beams across existing roads, comprising a truss, an upper crossbeam, an upper hanging rod, a box beam body, a bottom support, and a lower crossbeam. The truss is arranged above the bottom of the box beam body, the upper crossbeam is arranged horizontally on the truss, one end of the upper hanging rod is connected to the upper crossbeam, and the other end is connected to the lower crossbeam. Two lower crossbeams are provided and are located below the bottom of the box beam body. The bottom support is arranged on the lower crossbeam; the device also comprises: a lower hanging rod, a lifting beam, a distribution crossbeam, a panel, and a bottom protection railing.

[0007] Among them, there are two lower cross beams and they are staggered, the bottom support is set as a template and one end is against the bottom of the box beam body; one end of the lower suspension rod is connected to the lower cross beam, and the other end of the lower suspension rod is connected to the lifting beam, the distribution beam is fixed on the lifting beam, the panel is connected and fixed above the distribution beam, and the four sides of the panel exceed the four sides of the bottom support, and bottom guardrails are set around the panel.

[0008] Optionally, a plurality of distribution beams are provided, and the distribution beams and the lifting beams are arranged perpendicular to each other to form a plurality of crisscross frames.

[0009] Optionally, the panel is arranged horizontally, and a warning sign is provided on one side of the panel.

[0010] Optionally, the hanging beam and the lower cross beam are set to be of equal length.

[0011] Optionally, distribution longitudinal beams are provided to connect the plurality of distribution transverse beams.

[0012] The technical solution provided by this application may have the following beneficial effects:

[0013] This device is achieved by reconnecting and setting a bracket consisting of a lifting beam and a distribution beam under the original lower beam, and laying a platform consisting of panels on it, and the area of ​​the platform is larger than the bottom area of ​​the original hanging basket, and then setting bottom guardrails around it for protection, thereby constructing a new operating platform. The platform completely wraps the original hanging basket and is located at the bottom. On the one hand, it increases the area of ​​the original construction platform and facilitates construction; on the other hand, it is located below the original hanging basket, which is convenient for maintenance or other operations of the hanging basket; in addition, because it wraps the entire bottom of the hanging basket and has a large area, even if waste or materials during construction on the hanging basket fall off, they will fall on the platform, avoiding the risk of falling objects.

[0014] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above and other objects, features and advantages of the present application will become more apparent through a more detailed description of exemplary embodiments of the present application in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present application.

[0016] Figure 1 This is a front view of the structure shown in the embodiment of the present application;

[0017] Figure 2 This is a side view of the structure shown in an embodiment of the present application;

[0018] Reference numerals:

[0019] 1. Truss; 2. Upper crossbeam; 3. Upper suspension rod; 4. Box girder; 5. Bottom support; 6. Lower crossbeam; 7. Lower suspension rod; 8. Lifting beam; 9. Distribution beam; 10. Panel; 11. Bottom guardrail. DETAILED DESCRIPTION

[0020] The following describes embodiments of the present application in more detail with reference to the accompanying drawings. Although the accompanying drawings illustrate embodiments of the present application, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. Rather, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0021] It should be understood that although the terms "first", "second", "third", etc. may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. 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, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0022] In the description of this application, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0023] Unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be interpreted broadly. For example, they may refer to fixed or detachable connections, or integration; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0024] In response to the above problems, an embodiment of the present application provides a cantilevered bottom protection device for cast-in-place beams across existing roads using a hanging basket. The technical solution of the embodiment of the present application is described in detail below in conjunction with the accompanying drawings.

[0025] like Figure 1 and Figure 2 The device is a cantilever bottom protection device for cast-in-place beams across existing roads, designed based on a hanging basket. Specifically, the hanging basket includes a truss 1, an upper crossbeam 2, an upper suspension rod 3, a box beam body 4, a bottom support 5, and a lower crossbeam 6. The truss 1 is arranged above the bottom of the box beam body 4. The truss 1 is a diamond truss connected to the running track via a load-bearing chain plate, and both are arranged above the box beam body 4. The upper crossbeam 2 is a metal beam, which is arranged horizontally on the truss 1 and fastened by screws or other fastening methods. The upper crossbeam 2 is connected to the front lower crossbeam 6 by a steel plate suspension rod and fixed horizontally in front of the box beam body 4. The lower crossbeam 6 is provided in two pieces and is located below the bottom of the box beam body 4. One of the crossbeams is fastened to the upper crossbeam 2 by a steel plate suspension rod, and the other is fastened to the bottom of the box beam body 4 by a steel plate suspension rod. The bottom support 5 is arranged on the lower crossbeam 6.

[0026] In this device, the newly designed bottom protection device also includes a lower suspension rod 7, a lifting beam 8, a distribution beam 9, a panel 10, and a bottom guardrail 11.

[0027] Among them, there are two lower cross beams 6 and they are staggered, and the bottom support 5 is set as a template with one end against the bottom of the box beam body 4; in this way, the lower cross beam 6 and the bottom support 5 connected close to the box beam body 4 can be tightly attached to the box beam body 4, which is more stable. After the other end of the bottom support 5 is connected to the lower cross beam 6, the entire suspension beam connection can be stable and not shake. The lower suspension rod 7 is a precision-rolled threaded steel bar, one end of which is connected to the lower cross beam 6, and the other end of the lower suspension rod 7 is connected to the lifting beam 8. The distribution beam 9 is fixedly set on the lifting beam 8. The panel 10 is connected and fixed above the distribution beam 9, and the four sides of the panel 10 exceed the four sides of the bottom support 5. The panel 10 is surrounded by a bottom guardrail 11.

[0028] In this way, the device is connected again below the original lower beam 6 to set a bracket consisting of a lifting beam 8 and a distribution beam 9, and a platform consisting of a panel 10 is laid on it, and the area of ​​the platform is larger than the bottom area of ​​the original hanging basket, and then a bottom guardrail 11 is set around it for protection, thereby constructing a new operating platform. The platform completely wraps the original hanging basket and is located at the bottom. On the one hand, the original construction platform area is increased to facilitate construction; on the other hand, it is located below the original hanging basket, which is convenient for maintenance or other operations of the hanging basket; in addition, because it wraps the bottom of the entire hanging basket and has a large area, even if waste or materials during construction on the hanging basket fall off, they will fall on the platform, avoiding the risk of falling objects.

[0029] In one embodiment, multiple distribution beams 9 are provided, and the distribution beams 9 and the lifting beams 8 are arranged perpendicular to each other to form multiple cross-shaped frames, and distribution longitudinal beams are connected between the multiple distribution beams 9. Specifically, in this application, the distribution longitudinal beams and the distribution beams 9 are made of 6.3 channel steel, with a spacing of 100 cm in the transverse direction of the bridge and a spacing of 75 cm in the longitudinal direction of the bridge, and are arranged below the bottom panel 10; the bottom panel 10 is a 2 mm thick steel plate spliced ​​together to form a bottom protection platform, and the panel 10 is fully welded at the seam; the bottom guardrail 11 is divided into a front guardrail, a side guardrail, and a rear guardrail, and the vertical poles and horizontal poles are all made of 6.3 channel steel, with a vertical pole spacing of 100 cm. The guardrail height is 1.2 meters higher than the top surface, and the guardrail facade is fully enclosed with 1 mm thick steel plate. In this way, the distribution beams 9 and the distribution longitudinal beams form a support frame on one surface, and then are placed on the lifting beam 8 as a whole and connected and fastened. The panel 10 is made of metal sheet to reduce the weight of the entire equipment.

[0030] In one embodiment, the panel 10 is preferably arranged horizontally, and a warning sign is provided on one side of the panel 10 .

[0031] In one embodiment, the lifting beam 8 and the lower cross beam 6 are set to be the same length, so that when the bottom guardrail 11 is set, there is a place for the side wall to place the connectable and fastened parts.

[0032] This device can be equipped with clearance warning signs, reflective signs, red light strips, and light-sensing automatic switches, which can give clearance warnings to moving vehicles and serve as night warnings, thereby reducing the occurrence of safety accidents. The protective guardrail uses 1mm thick steel panels that are fully welded above the bridge deck to prevent falling objects from high altitudes and the safety of construction workers during construction, while also preventing hidden safety risks caused by damage caused by human or weather factors. Compared with the traditional method of building safety protection scaffolding, this new device can be installed and dismantled outside the line, avoiding the blockade of existing traffic routes. At the same time, the device can also move forward synchronously with the movement of the hanging basket, significantly reducing the safety risks caused by the construction and dismantling of the protective scaffolding, and ensuring the continuity and safety of construction. The overall structure is simple and easy to install and dismantle. While ensuring safe construction, it improves work efficiency, saves costs, and shortens construction period.

[0033] Finally, it should be noted that, in this document, relationships such as first and second, etc., are used solely to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms include, comprise, or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Units described as separate components may or may not be physically separate, and components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0035] The embodiments of the present application have been described above. The above description is illustrative and not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is selected to best explain the principles of the embodiments, their practical applications, or improvements to the technology in the market, or to enable other persons skilled in the art to understand the embodiments disclosed herein.

Claims

1. A cantilever bottom protection device for cast-in-situ beams across existing roads, comprising a truss (1), an upper crossbeam (2), an upper hanging rod (3), a box beam body (4), a bottom support (5), and a lower crossbeam (6), wherein the truss (1) is arranged above the bottom of the box beam body (4), the upper crossbeam (2) is arranged horizontally on the truss (1), one end of the upper hanging rod (3) is connected to the upper crossbeam (2), and the other end is connected to the lower crossbeam (6), the lower crossbeam (6) is provided in two pieces and is located below the bottom of the box beam body (4), and the bottom support (5) is arranged on the lower crossbeam (6); characterized in that It also includes: a lower suspension rod (7), a lifting beam (8), a distribution beam (9), a panel (10), and a bottom guardrail (11); The lower cross beams (6) are provided in two pieces and are staggered, the bottom support (5) is provided as a template and one end of the template is against the bottom of the box beam body (4); one end of the lower suspension rod (7) is connected to the lower cross beam (6), the other end of the lower suspension rod (7) is connected to the lifting beam (8), the distribution cross beam (9) is fixed to the lifting beam (8), the panel (10) is connected and fixed above the distribution cross beam (9), and the four sides of the panel (10) exceed the four sides of the bottom support (5), and the bottom guardrail (11) is provided around the four sides of the panel (10).

2. The bottom protection device for cantilever casting of cast-in-situ beams across existing roads according to claim 1 is characterized in that: A plurality of distribution beams (9) are provided, and the distribution beams (9) and the lifting beams (8) are arranged perpendicular to each other to form a plurality of well-shaped frames.

3. The bottom protection device for cantilever casting of cast-in-situ beams across existing roads according to claim 1 is characterized in that: The panel (10) is arranged horizontally, and a warning sign is arranged on one side of the panel (10).

4. The bottom protection device for cantilever casting of cast-in-situ beams across existing roads according to claim 1 is characterized in that: The lifting beam (8) and the lower cross beam (6) are arranged to have the same length.

5. The bottom protection device for cantilever casting of cast-in-situ beams across existing roads according to claim 2 is characterized in that: Distribution longitudinal beams are connected between the plurality of distribution transverse beams (9).

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