Bridge cover beam construction device based on hoop method

Abstract

The utility model relates to bridge construction technical field discloses a bridge bent cap construction device based on hoop method, and the device includes stabilizing mechanism and the load bearing support supported by it, the stabilizing mechanism includes the hoop suitable for embracing and locking in the stand, the fixed subassembly for locking the hoop and the unloading block setting in the top of hoop, the fixed subassembly includes the extension plate and screw thread column, and the hoop is closed through the screw thread column and is made enough friction between it and stand as load bearing foundation, the load bearing support is supported by unloading block, and it includes the bailey piece and the I -beam laid in the top of bailey piece, and the common construction platform is constituted, and the load bearing support can also set up the reinforcing chord, the scissor support and the inclined support to enhance stability, the utility model solves the problem that the bent cap construction under the high pier or complex topography needs to rely on ground support, has the beneficial effect that the structure is stable, construction is safe and efficient, saves the cost and has little environment influence.

Description

Technical Field

[0001] This utility model relates to the field of bridge construction technology, and in particular to a bridge cap beam construction device based on the clamping method. Background Technology

[0002] Bridge cap beams are crucial load-bearing components connecting the main beams of a bridge to the piers, and their construction quality directly affects the safety and stability of the entire bridge. During the construction of cap beams, a stable temporary support system is typically erected to support the weight of the formwork, reinforcing steel, and newly poured concrete until the concrete reaches its design strength.

[0003] Currently, the common support method used in bridge cap beam construction is to erect full-span scaffolding and large steel pipe support frames from the ground and abutment upwards. This method is effective when the piers are low and the foundation conditions are good. However, as modern bridge engineering develops towards larger spans and higher piers, the construction environment is becoming increasingly complex. For example, bridges need to cross deep valleys, rivers, and existing highways, railways, and other major transportation routes.

[0004] Under these complex conditions, traditional ground-based scaffolding methods reveal significant shortcomings. When the bridge piers are very high, erecting full-height scaffolding not only requires enormous amounts of steel and fasteners, leading to a sharp increase in material and labor costs, but the erection and dismantling processes at height also carry significant safety risks. More importantly, this support system completely occupies and blocks the space beneath the bridge, causing prolonged and severe disruption to existing traffic and waterway navigation, which is unacceptable in many projects.

[0005] Therefore, there is an urgent need for a bridge cap beam construction method and its dedicated equipment that is independent of ground foundation conditions, can effectively reduce construction costs and risks, and minimize the impact on the space under the bridge.

[0006] Therefore, this utility model proposes a bridge cap beam construction device based on the clamping method to overcome the shortcomings of the prior art. Utility Model Content

[0007] In view of the problems existing in the bridge cap beam construction device, which requires the erection of a support system from the ground when constructing high piers and complex terrain, resulting in long construction period, high cost, high safety risks, and serious impact on traffic or environment under the bridge, this utility model aims to provide a bridge cap beam construction device based on the clamp method with an improved structure that can effectively solve the above problems.

[0008] Part Two: Core Technology Solutions

[0009] This utility model provides a bridge cap beam construction device based on the clamping method, including a stabilizing mechanism and a load-bearing bracket supported by the stabilizing mechanism.

[0010] The stabilizing mechanism includes a clamp, a fixing component, and a release block. The clamp consists of two semi-circular structures joined together, adapted to encircle and lock onto the outer periphery of a column. The fixing component is fixedly connected to the mating ends of the clamp and includes an extension plate and a threaded post. The threaded post passes through the extension plate and is tightened to drive the extension plate to move towards each other, thereby tightening the clamp. The release block is located at the top of the clamp.

[0011] The load-bearing support is supported by unloading blocks. The load-bearing support includes Bailey panels arranged parallel to each other along a first direction and I-beams laid on top of the Bailey panels along a second direction.

[0012] Part Three: Preferred Technical Solutions

[0013] Preferably, the load-bearing support also includes a reinforcing chord, which is fixedly connected to the upper or lower chord of the Bailey plate along a first direction.

[0014] Preferably, the load-bearing support also includes scissor braces, which are fixedly connected between adjacent Bailey panels in a cross shape.

[0015] Preferably, the load-bearing support also includes a diagonal brace, one end of which is fixedly connected to the I-beam, and the other end is obliquely fixedly connected to the Bailey plate.

[0016] Preferably, the device also includes a template, which is installed and fixed to the top of the I-beam.

[0017] Preferably, the unloading block is a steel wedge block assembly, and the installation height of the load-bearing bracket is adjusted by adjusting the relative position between the wedge blocks.

[0018] Preferably, the first direction and the second direction are perpendicular to each other.

[0019] Preferably, the extension plates of the fixing components are fixedly connected to the free ends of the two semi-annular structures respectively.

[0020] This utility model has the following beneficial effects:

[0021] 1. This utility model solves the problem that existing technologies require scaffolding to be erected on the ground when constructing bridge cap beams for high piers or bridges in complex terrain. This is achieved by setting a clamp that can be locked to the bridge column and using the friction between the clamp and the column as the load-bearing foundation, and then erecting a load-bearing support on the clamp. This solves the problem that existing technologies require scaffolding to be erected on the ground when constructing cap beams for bridges with high piers or complex terrain. This results in long construction periods, large material consumption, high costs, and impact on traffic or the environment under the bridge. This achieves the technical effect of enabling high-altitude operations without ground support, effectively saving costs, shortening the construction period, and reducing the environmental impact of construction.

[0022] 2. This utility model solves the problems of insufficient lateral stability and unstable stress at key connection points in traditional high-altitude support platforms by setting scissor braces between the Bailey panels of the load-bearing support and diagonal braces between the I-beams and the Bailey panels. It achieves the technical effect of enhancing the overall structural rigidity and stability of the device, effectively resisting lateral forces, and ensuring safe and reliable construction.

[0023] 3. This utility model solves the problems of difficulty in accurately adjusting the height during the installation of traditional support systems and the difficulty, time and labor cost of dismantling the formwork and support after the cap beam construction is completed by setting a relief block between the clamp and the load-bearing bracket. It achieves the technical effect of facilitating accurate adjustment of the support installation height and enabling quick and safe unloading and dismantling operations after construction, thereby improving construction efficiency. Attached Figure Description

[0024] Figure 1 This is a three-dimensional schematic diagram of a bridge cap beam construction device based on the clamping method proposed in this utility model;

[0025] Figure 2 This is a schematic diagram of the structure of an I-beam for a bridge cap beam construction device based on the clamping method proposed in this utility model;

[0026] Figure 3 This is a schematic diagram of the reinforcing chord of a bridge cap beam construction device based on the clamping method proposed in this utility model;

[0027] Figure 4 This is a schematic diagram of the unloading block of a bridge cap beam construction device based on the clamping method proposed in this utility model.

[0028] Legend:

[0029] 1. Column; 2. Stabilizing mechanism; 21. Clamp; 22. Fixing component; 221. Extension plate; 222. Threaded column; 23. Unloading block; 24. Reinforcing chord; 25. Bailey bridge; 26. Scissor brace; 27. I-beam; 28. Formwork; 29. ​​Diagonal brace. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Example

[0032] Please refer to Figures 1 to 4This utility model provides a bridge cap beam construction device based on the clamping method, which aims to solve the problems of complex construction, high cost and impact on the space under the bridge caused by relying on ground-based scaffolding when constructing bridge cap beams under high piers or complex terrain.

[0033] like Figure 1 As shown, the bridge cap beam construction device based on the clamp method includes a stabilizing mechanism 2 and a load-bearing support set above the stabilizing mechanism 2. The stabilizing mechanism 2 provides a stable foundation for the entire device without relying on ground support. The load-bearing support is supported by the stabilizing mechanism 2 and is used to bear the entire load of the cap beam construction.

[0034] Specifically, the stabilizing mechanism 2 is the core innovation of this device, referring to... Figure 1 and Figure 2 The stabilizing mechanism 2 includes a clamp 21, a fixing component 22, and a release block 23. The clamp 21 is formed by two semi-circular structures joined together and is suitable for wrapping around and tightly locking to the outer periphery of a column 1. The fixing component 22 is used to securely lock the clamp 21 to the column 1. The release block 23 is located at the top of the clamp 21 and serves as the direct support base for the load-bearing bracket. Figure 2 The fixing component 22 is fixedly connected to the mating end of the clamp 21. It includes an extension plate 221 and a threaded post 222. The extension plate 221 is fixedly connected to the free ends of the two semi-annular structures respectively. The threaded post 222 passes through the corresponding extension plate 221. By tightening the threaded post 222, the extension plate 221 is driven to move towards each other, thereby tightening the clamp 21. This generates a static friction force between the clamp 21 and the column 1 sufficient to bear the load of the upper structure. The load-bearing bracket is erected on the unloading block 23. It includes Bailey panels 25 arranged parallel to the first direction and I-beams 27 laid on top of the Bailey panels 25 along the second direction. The Bailey panels 25 constitute the main load-bearing beam of the load-bearing bracket. The I-beams 27 act as a distribution beam to evenly transfer the upper load to multiple sets of Bailey panels 25.

[0035] To further enhance the overall stability and load-bearing capacity of the load-bearing support, this bridge cap beam construction device based on the clamp method also includes reinforcing chords 24, scissor braces 26, and diagonal braces 29. These components form a specific structural fit and fixed connection with the Bailey bridge panels 25 and the I-beams 27. Please refer to the details below. Figure 1 and Figure 3 The following is a detailed description of the reinforced structure:

[0036] The reinforcing chord 24 is fixedly connected to the upper or lower chord of the Bailey bridge 25 along the first direction, i.e., the length direction of the Bailey bridge 25. The setting of the reinforcing chord 24 enhances the overall longitudinal stiffness and bending resistance of the Bailey beam assembled from multiple Bailey bridge 25 pieces. The scissor brace 26 is fixedly connected to adjacent Bailey bridge 25 in a cross shape. This connection method forms a stable triangular structure between the Bailey bridge 25 pieces, which greatly improves the lateral stability of the entire load-bearing support, effectively resists lateral forces, and prevents the platform from becoming laterally unstable. At the same time, one end of the diagonal brace 29 is fixedly connected to the I-beam 27, and the other end is obliquely fixedly connected to the Bailey bridge 25. The diagonal brace 29 reinforces the connection point between the I-beam 27 and the Bailey bridge 25, ensuring that the I-beam 27, as a distribution beam, will not slide or overturn when bearing the upper load, thus ensuring the stability and reliability of the load transfer path.

[0037] Based on the above embodiments, the present invention may further include the following preferred technical solutions:

[0038] As a preferred embodiment, to facilitate the on-site casting and forming of the cap beam, this device also includes a template 28, as shown in the reference. Figure 1 The template 28 is installed and fixed on the top of the I-beam 27. The template 28 forms a cavity for accommodating concrete, and its shape and size are determined according to the design requirements of the cap beam to be constructed.

[0039] As another preferred embodiment, in order to achieve precise adjustment of the installation height of the load-bearing bracket and smooth unloading of the bracket after construction, refer to Figure 4 The unloading block 23 is specifically a steel wedge block assembly, which includes an upper wedge block and a lower wedge block. By tapping to adjust the relative position between the upper and lower wedge blocks, a small displacement of the load-bearing bracket in the vertical direction can be achieved, thereby precisely adjusting the installation height.

[0040] Furthermore, in order to optimize the force transmission path and structural stability, the first direction is perpendicular to the second direction, that is, the laying direction of the I-beam 27 is perpendicular to the erection direction of the Bailey panel 25. This orthogonal arrangement allows the I-beam 27 to distribute the upper load more evenly to each Bailey panel 25.

[0041] In a specific structural implementation, in order to facilitate the installation and disassembly of the clamp 21, the clamp 21 is composed of two semi-circular structures. The extension plate 221 of the fixing component 22 is fixedly connected to the free ends of the two semi-circular structures by bolts or welding. During installation, the two semi-circular structures are closed from both sides of the column 1 and then locked by the fixing component 22.

[0042] Working principle: When constructing the cap beam, the clamp 21, which consists of two semi-circular structures, is first brought together from both sides of the column 1 and encircles the column 1 at the predetermined installation height. Then, the threaded column 222 on the fixing component 22 is tightened, which drives the extension plate 221 to move towards each other, thereby applying a huge pre-tightening force to the clamp 21, so that a strong static friction force is generated between the clamp 21 and the surface of the column 1, which serves as the bearing foundation of the entire device.

[0043] Based on this, the unloading block 23 is placed on top of the clamp 21, and its height is finely adjusted using the structure of its wedge block assembly. Then, the Bailey bridge 25, which is pre-assembled and connected with the reinforcing chord 24, is hoisted and erected on the unloading block 23 to form the main load-bearing beam. After that, scissor braces 26 are installed between the Bailey bridge 25 to ensure the lateral stability of the platform. Then, I-beams 27 are laid vertically on the Bailey bridge 25 and reinforced by diagonal braces 29, finally forming a stable load-bearing support platform.

[0044] After the platform is erected, formwork 28 is installed on the I-beam 27, and rebar tying and concrete pouring are carried out. All construction loads from the cap beam are transferred to the I-beam 27 through the formwork 28. The I-beam 27 evenly distributes the load to multiple sets of Bailey bridge sections 25 below. The Bailey bridge sections 25 then transfer the load to the unloading block 23 through a stable structural system formed by the reinforcing chord 24, scissor brace 26 and diagonal brace 29. Finally, through the friction between the clamp 21 and the column 1, all the load is safely transferred to the column 1 and the bridge foundation, thus realizing the construction of the cap beam without ground support.

Claims

1. A bridge cap beam construction device based on the clamping method, comprising: stabilizing... The stabilizing mechanism (2) includes: a clamp (21), which is formed by two semi-circular structures joined together and is suitable for encircling and locking the outer periphery of a column (1); The feature is that it includes a fixing component (22), which is fixedly connected to the mating end of the clamp (21). The fixing component (22) includes an extension plate (221) and a threaded post (222). The threaded post (222) passes through the extension plate (221) and tightens the clamp (21) by driving the extension plate (221) to move towards each other. It also includes a release block (23), which is disposed on the top of the clamp (21). And a load-bearing bracket, which is supported by the unloading block (23), the load-bearing bracket including Bailey panels (25) arranged parallel to each other in a first direction, and I-beams (27) laid on top of the Bailey panels (25) in a second direction.

2. The bridge cap beam construction device based on the clamping method according to claim 1, characterized in that, The load-bearing bracket also includes a reinforcing chord (24), which is fixedly connected to the upper or lower chord of the Bailey plate (25) along the first direction.

3. The bridge cap beam construction device based on the clamping method according to claim 1 or 2, characterized in that, The load-bearing bracket also includes scissor braces (26), which are fixedly connected in a cross shape between adjacent Bailey panels (25).

4. The bridge cap beam construction device based on the clamping method according to claim 1, characterized in that, The load-bearing bracket also includes a diagonal brace (29), one end of which is fixedly connected to the I-beam (27), and the other end is obliquely fixedly connected to the Bailey plate (25).

5. The bridge cap beam construction device based on the clamping method according to claim 1, characterized in that, It also includes a template (28), which is installed and fixed to the top of the I-beam (27).

6. The bridge cap beam construction device based on the clamping method according to claim 1, characterized in that, The unloading block (23) is a steel wedge block assembly, and the installation height of the load-bearing bracket is adjusted by adjusting the relative position between the wedge blocks.

7. The bridge cap beam construction device based on the clamping method according to claim 1, characterized in that, The first direction and the second direction are perpendicular to each other.

8. The bridge cap beam construction device based on the clamping method according to claim 1, characterized in that, The extension plate (221) of the fixing component (22) is fixedly connected to the free ends of the two semi-annular structures respectively.

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