Suspension type door type pier cap beam tensioning operation hanging frame platform

The steel structure design of the suspended portal pier cap beam tensioning operation platform solves the problem of limited work platform space in bridge engineering, realizes a flexible and efficient construction solution, reduces construction costs and shortens the construction cycle.

CN224378719UActive Publication Date: 2026-06-19CTCE GRP ROAD & BRIDGE ENG CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CTCE GRP ROAD & BRIDGE ENG CO LTD
Filing Date
2025-06-18
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

In existing bridge engineering projects, the construction and dismantling of portal pier cap beam tensioning operation platforms are time-consuming and labor-intensive, and they are difficult to implement effectively in complex terrain or space-constrained sites, resulting in high construction costs and low efficiency.

Method used

A suspended portal pier cap beam tensioning operation lifting frame platform was designed. It adopts steel structure such as frame platform, frame vertical rod, upper hanging wall beam and steel diagonal tie rod, and is fixed to the pre-embedded parts on the top surface of the cap beam through detachable connection to form a stable support system, which is suitable for complex terrain and high-altitude operations.

Benefits of technology

It eliminates the need for foundation hardening and ground supports, offers flexible operation, shortens the construction cycle, reduces costs, improves work efficiency, and enhances safety.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224378719U_ABST
Patent Text Reader

Abstract

This application discloses a suspended portal pier cap beam tensioning operation platform, relating to the field of bridge engineering technology. The platform includes a frame platform for operator work; frame vertical members connected to and located above the frame platform; and an upper hanging beam connected to the upper part of the frame vertical members and extending outwards from the frame platform. The upper hanging beam is detachably connected to an embedded part on the top surface of the cap beam end. The suspended structure design eliminates the need for scaffolding or machinery under the bridge during construction, thus avoiding the need for ground foundation treatment and scaffolding materials.
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Description

Technical Field

[0001] This application relates to the field of bridge engineering technology, specifically to a suspended portal pier cap beam tensioning operation lifting frame platform. Background Technology

[0002] In bridge construction, the smooth execution of portal pier cap beam tensioning operations relies heavily on reliable work platforms. Currently, ground-supported scaffolding and boom lifts are commonly used tools for erecting work platforms in the industry. Taking ground-supported scaffolding as an example, extensive ground hardening treatment of the construction site is required before erection, and the erection and dismantling processes consume a significant amount of manpower, often leading to extended construction periods and increased construction costs. While boom lifts offer some operational flexibility, their equipment rental costs are high. In complex terrains such as mountainous areas and tunnel entrances, or in space-constrained construction sites such as urban bridges, boom lifts are difficult to deploy, resulting in low operational efficiency and similarly high construction costs. Therefore, developing a new type of portal pier cap beam tensioning work platform that is not limited by site conditions has significant practical value. Utility Model Content

[0003] To address the shortcomings of existing technologies, this application provides a suspended portal pier cap beam tensioning operation platform, which solves the technical problem of limited construction operation platform space.

[0004] This application provides a suspended portal pier cap beam tensioning operation lifting frame platform, including:

[0005] A frame platform, used as a work area for operators;

[0006] The frame uprights are connected to the frame platform and are located above the frame platform;

[0007] The upper hanging wall beam is connected to the upper part of the frame vertical bar and extends outward from the frame platform. The upper hanging wall beam is detachably connected to the beam surface of the part to be constructed.

[0008] In the suspended portal pier cap beam tensioning operation lifting frame platform provided in this application, the frame platform includes an outer frame steel and an inner distribution beam, which are fixedly connected to form a planar frame structure, and the frame platform is equipped with four protective fences.

[0009] In the suspended portal pier cap beam tensioning operation lifting frame platform provided in this application, the protective fence includes columns and railings. The columns are made of steel sections, and the bottom of the columns is connected to the frame platform. Multiple railings are horizontally arranged, and the railings are fixedly connected to the columns.

[0010] In the suspended portal pier cap beam tensioning operation lifting frame platform provided in this application, the frame vertical rods include multiple rods.

[0011] In the suspended portal pier cap beam tensioning operation lifting frame platform provided in this application, four steel diagonal braces are provided between the frame vertical rod and the outer frame steel of the frame platform to stabilize the connection between the frame platform and the frame vertical rod.

[0012] In the suspended portal pier cap beam tensioning operation lifting frame platform provided in this application, the upper hanging wall beam is a steel cantilever structure used to connect with the pre-embedded parts on the top surface of the cap beam.

[0013] The suspended portal pier cap beam tensioning operation lifting frame platform of this utility model has the following beneficial effects:

[0014] This utility model adopts a suspended structure design, eliminating the need for scaffolding or machinery under the bridge during the tensioning operation at the end of the cap beam, thus avoiding the need for ground foundation treatment and scaffolding materials. It is flexible and convenient to use, and not restricted by site conditions. The operating platform adopts a steel frame structure with multiple diagonal braces and connecting systems, resulting in a simple stress distribution and relatively stable structure.

[0015] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of the suspended portal pier cap beam tensioning operation lifting frame platform of this application. Figure 1 ;

[0018] Figure 2 This is a schematic diagram of the overall structure of the suspended portal pier cap beam tensioning operation lifting frame platform of this application. Figure 2 ;

[0019] Figure 3 This is a side view of the suspended portal pier cap beam tensioning operation platform of this application;

[0020] Figure 4 This is a schematic diagram of the frame platform structure of the suspended portal pier cap beam tensioning operation platform of this application;

[0021] Figure 5 yes Figure 4 A magnified structural diagram of region A in the middle.

[0022] Figure label:

[0023] 1. Upper hanging beam; 2. Frame vertical bar; 3. Frame platform; 4. Diagonal tie rod; 5. Stop block; 6. Track; 7. Slider; 8. Roll plate; 9. Connecting hole; 10. Base; 11. Locking rod; 12. Top seat; 13. Spring; 14. Protective fence. Detailed Implementation

[0024] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0025] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0026] It should be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the application. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0027] It should be understood that, in order to clearly describe the technical solutions of the embodiments of this application, the terms "first" and "second" are used in the embodiments of this application to distinguish identical or similar items with essentially the same function and effect. For example, the first groove and the second groove are only used to distinguish different grooves and do not limit their order. Those skilled in the art will understand that the terms "first" and "second" do not limit the quantity or execution order, and the terms "first" and "second" are not necessarily different.

[0028] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0029] This application provides a suspended portal pier cap beam tensioning operation lifting frame platform, referenced... Figures 1-5 The suspended portal pier cap beam tensioning operation platform includes: a frame platform 3, which is a work area for operators; a frame vertical rod 2, which is connected to the frame platform 3 and located above the frame platform 3; and an upper hanging wall beam 1, which is connected to the upper part of the frame vertical rod 2 and extends outward from the frame platform 3. The upper hanging wall beam 1 is detachably connected to the pre-embedded parts on the top surface of the cap beam.

[0030] The upper hanging beam 1 is detachably connected to the pre-embedded parts on the top surface of the cap beam, eliminating the need for foundation hardening or ground supports, making it suitable for complex terrain and high-altitude operations. The frame platform 3 and frame vertical poles 2 are connected by steel diagonal braces 4, forming a rigid support system; the protective fence 14 uses multiple railings and steel columns to improve operational safety. The detachable design of the upper hanging beam 1 supports rapid installation and disassembly, shortening the construction cycle; the upper hanging beam 1 adopts a double parallel steel cantilever structure, which is firmly and stably connected to the pre-embedded parts on the top surface of the cap beam.

[0031] The frame platform 3 includes an outer frame steel section and an inner distribution beam, which are fixedly connected to form a planar frame structure. The frame platform 3 is equipped with four protective fences 14.

[0032] The outer frame steel is fixedly connected to the inner distribution beams to form a planar frame structure, which together bears the loads of operators, construction tools, and materials. Four-sided protective railings 14 are installed on the edges of the frame platform 3 to protect the platform edges.

[0033] The protective fence 14 includes posts and railings. The posts are made of steel and the bottom of the posts are connected to the frame platform 3. Multiple railings are horizontally arranged and the railings are fixedly connected to the posts.

[0034] The posts are made of steel and are firmly connected to the frame platform 3 at the bottom, serving as the supporting structure for the protective fence 14. Multiple railings are horizontally installed and fixedly connected to the vertical posts, forming a multi-layered protective barrier that horizontally separates and protects the area between the vertical posts.

[0035] The frame vertical members 2 consist of multiple members. These multiple frame vertical members 2 are evenly distributed above the frame platform 3, jointly bearing the load transmitted by the upper hanging beam 1 and the load of the platform itself. Through the coordinated action of the multiple vertical members, the load is distributed and transmitted to the upper hanging beam 1 and the top surface of the cap beam.

[0036] Four steel diagonal braces 4 are installed between the frame vertical members 2 and the outer frame steel of the frame platform 3 to transfer the load on the frame platform 3 to the frame vertical members 2. These four steel diagonal braces 4 form an oblique support structure between the frame vertical members 2 and the outer frame steel of the frame platform 3. When the frame platform 3 is under load, the load is transferred to the frame vertical members 2 in the form of tension or compression through the diagonal braces 4, and then from the vertical members to the upper hanging beam 1 and the top surface of the cap beam.

[0037] The upper hanging wall beam 1 is a steel cantilever structure. There are two upper hanging wall beams 1 arranged in parallel and connected to the pre-embedded parts on the top of the cover beam.

[0038] The upper hanging beam 1 adopts a steel cantilever structure. Two parallel upper hanging beams 1 are connected by three horizontal bracings to form a stable frame structure. The cantilever end extends outward to the beam surface to be constructed and is fixed to the beam surface through detachable connectors, so that the load of the suspended frame platform is transferred to the beam surface through the cantilever action of the upper hanging beam 1.

[0039] In practice, the upper hanging beam 1 is inserted into the pre-embedded steel bars on the top surface of the cap beam, and the entire operating platform is anchored to the top surface of the cap beam, with the force transmitted to the anchoring end of the upper hanging beam 1; personnel work inside the operating platform within the range of the upper protective fence 14.

[0040] A stop block 5 is also provided, which is installed on the upper hanging wall beam 1. The stop block 5 prevents the upper hanging wall beam 1 from separating from the frame vertical bar 2.

[0041] In practice, before using the operating platform, wooden boards and kickboards are laid and fixed on the top surface of the frame platform 3 to prevent people and objects from falling.

[0042] In practice, a crane can be used on-site to lift the suspended operating platform to the operating position using slings.

[0043] In some embodiments, the inner frame side of the frame platform 3 is also provided with two symmetrical tracks 6, and U-shaped sliders 7 are provided on the tracks 6. The sliders 7 are slidably connected to the slide rails. The frame platform 3 is also provided with a roll plate 8, which includes multiple long plates connected by steel chains. The roll plate 8 is used for personnel to step on. After personnel step onto the frame platform 3, they connect one end of the roll plate 8 to the slider 7 and push the slider 7 to move, so that the roll plate 8 automatically unfolds.

[0044] The slider 7 and the roll plate 8 are provided with corresponding connecting holes 9. The connecting holes 9 include a circular hole and two pairs of rectangular holes extending outward from the side wall of the circular hole. The connecting holes 9 are located outside the track 6. A locking component is also provided, which includes a base 10 corresponding to the shape of the connecting hole 9. A locking rod 11 is connected to the base 10, and a top seat 12 is connected to the locking rod 11. A spring 13 with a diameter larger than the connecting hole 9 and smaller than the top seat 12 is provided on the locking rod 11. When the locking rod 11 is inserted into the connecting hole 9, the base 10 is located below the slider 7. Rotating the locking rod 11 limits the connection between the base 10 and the connecting hole 9. One end of the spring 13 abuts against the top seat 12, and the other end abuts against the roll plate 8. The base 10 passes through the connecting hole 9. As the spring 13 is compressed, it applies upward pressure to the top seat 12, and the base 10 abuts against the bottom surface of the slider 7, thus fixing it in place. In this embodiment, the roll plate 8 covers the entire frame platform 3.

[0045] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hanging door type pier cap beam tensioning operation hanging frame platform, characterized in that, include: A frame platform, used as a work area for operators; The frame uprights are connected to the frame platform and are located above the frame platform; The upper hanging wall beam is connected to the upper part of the frame vertical bar and extends outward from the frame platform. The upper hanging wall beam is detachably connected to the beam surface of the part to be constructed.

2. The suspended portal pier cap beam tensioning operation lifting frame platform according to claim 1, characterized in that, The frame platform includes an outer frame steel section and an inner distribution beam, which are fixedly connected to form a planar frame structure. The frame platform is equipped with four protective fences.

3. The suspended portal pier cap beam tensioning operation lifting frame platform according to claim 2, characterized in that, The protective fence includes posts and railings. The posts are made of steel and their bottoms are connected to the frame platform. Multiple railings are horizontally arranged and are fixedly connected to the posts.

4. The suspended portal pier cap beam tensioning operation lifting frame platform according to claim 1, characterized in that, The frame vertical members consist of multiple members.

5. The suspended portal pier cap beam tensioning operation lifting frame platform according to claim 2, characterized in that, Four steel diagonal braces are provided between the frame vertical members and the outer frame steel of the frame platform to stabilize the connection between the frame platform and the frame vertical members.

6. The suspended portal pier cap beam tensioning operation lifting frame platform according to claim 1, characterized in that, The upper hanging wall beam is a steel cantilever structure. There are two upper hanging wall beams arranged in parallel, which are used to connect with the pre-embedded parts on the top of the cover beam.