Assembly type prefabricated bridge pier shipping reinforcing tool
By installing components such as pad beams and precision-rolled threaded steel bars under the pier body, combined with an adaptive adjustment mechanism, the problem of swaying and displacement of the pier caused by wind and waves during shipping was solved, thus achieving stable fixation and safe transportation of the pier.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CRCC HARBOR & CHANNEL ENG BUREAU GRP
- Filing Date
- 2025-06-11
- Publication Date
- 2026-07-31
AI Technical Summary
Existing methods for reinforcing prefabricated bridge piers by ship have problems such as insecure fixing and poor adaptability. They cannot effectively prevent bridge piers from swaying, shifting, or overturning during sea transport due to wind, waves, turbulence, or collisions, which affects construction safety and quality.
The bridge pier is supported by a pad beam installed under the pier body. The pad beam is welded and fixed to the hull deck. It is then fixed by using precision-rolled threaded steel, tightening frame and fastening square tube. The pier position is adjusted in real time by hydraulic cylinder and sensor through an adaptive adjustment mechanism to ensure stability.
It effectively reduces the swaying of bridge piers when ships move, ensures the reliable fixing and stability of bridge piers, adapts to bridge piers with different structures, and improves construction safety and quality.
Smart Images

Figure CN224577138U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of prefabricated bridge pier shipping technology, and more specifically, to a prefabricated bridge pier shipping reinforcement tooling. Background Technology
[0002] In the construction of cross-sea bridges, prefabricated piers are a new direction for bridge foundation construction. Prefabricated piers have the characteristics of high construction precision, fast processing speed and convenient installation. Factory-made prefabricated piers usually need to be transported to the bridge site by ship for installation.
[0003] Precast bridge pier reinforcement equipment refers to a series of reinforcement measures and special devices adopted in the construction of precast bridges to ensure the stability, safety and integrity of precast bridge pier components during ship transportation. The core purpose is to prevent the components from being damaged or displaced due to wind, waves, turbulence or collision during sea transportation, and at the same time create conditions for subsequent precise hoisting.
[0004] However, during shipping, tall pier segments are subject to various external forces such as tides, water flow, and waves, which can easily cause swaying, displacement, or even overturning, seriously affecting on-site construction safety, progress, and quality. Existing reinforcement methods often have problems such as insecure fixing and poor adaptability, and cannot meet the increasingly complex transportation environment and diverse pier structure requirements.
[0005] Therefore, a prefabricated bridge pier transport and reinforcement tooling is proposed to address the above problems. Utility Model Content
[0006] In order to overcome the above-mentioned defects of the prior art, this utility model provides a prefabricated bridge pier shipping and reinforcement tooling to solve the problems mentioned in the background art.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a prefabricated bridge pier transport and reinforcement fixture, comprising a bridge pier body, a pad beam, precision-rolled threaded steel bars, a tightening frame, and a fastening square tube. The bridge pier body is placed on the upper end face of the pad beam, the upper end face of the pad beam is provided with precision-rolled threaded steel bars, the side end face of the pad beam is connected to the tightening frame by detachable bolts, and the side end face of the tightening frame is laterally connected and limited by a fastening square tube. The side end face of the bridge pier body is provided with a bracket, and the upper end face of the pad beam and the side of the tightening frame near the bridge pier body are provided with an adaptive adjustment mechanism.
[0008] The adaptive adjustment mechanism includes a first hydraulic cylinder and a second hydraulic cylinder. The first hydraulic cylinder is specifically installed on the side end face of the tightening frame. The telescopic end of the first hydraulic cylinder is connected to a hinge ball seat through a hinge ball joint, and the hinge ball seat is installed on the side end face of the support plate. A pressure sensor is provided on the contact surface between the hinge ball seat and the support plate. Angle sensors are provided at the four corners of the support plate. The first hydraulic cylinder and the second hydraulic cylinder have the same structure.
[0009] Preferably, the pad beam consists of a crossbeam and a longitudinal beam, which are arranged in a cross pattern. Both the crossbeam and the longitudinal beam are made of high-strength steel. Rubber pads are provided on the upper surfaces of the crossbeam and the longitudinal beam in the pad beam. The crossbeam and the longitudinal beam in the pad beam are welded to the upper surface of the ship's deck.
[0010] Preferably, the second hydraulic cylinder is specifically installed at the intersection of the crossbeam and the longitudinal beam in the pad beam, and the mechanism of the extension and retraction end of the second hydraulic cylinder is the same as the mechanism of the extension and retraction end of the first hydraulic cylinder.
[0011] Preferably, the precision-rolled threaded steel bars are provided in two sets, and each set of the precision-rolled threaded steel bars is provided with two bars. The outer diameter surface of the precision-rolled threaded steel bars is fitted with a reinforcing plate, and the outer diameter surface of the precision-rolled threaded steel bars is provided with limit bolts.
[0012] Preferably, the tightening frame has a workbench on its side end face, and the workbench has a ladder on its side end face. The workbench is connected to the tightening frame by detachable bolts, and the ladder is connected to the workbench by detachable bolts.
[0013] Preferably, the precision-rolled threaded steel bar sequentially penetrates the corbel and reinforcing plate arranged on the side end face of the pier body and is limited and connected to the limiting bolt, and the first hydraulic cylinder and the second hydraulic cylinder in the adaptive adjustment mechanism are both in close contact with the pier body.
[0014] Preferably, the side end face of the tightening frame is connected to the fastening square tube by means of a pin connection, and the end of the fastening square tube that contacts the pier body is provided with an anti-slip pad.
[0015] Preferably, the telescopic end of the first hydraulic cylinder forms a rotating structure around the center of the hinged ball head by connecting the hinged ball head and the hinged ball seat on the side end face of the support plate.
[0016] The technical effects and advantages of this utility model are as follows:
[0017] Compared with existing technologies, this prefabricated bridge pier reinforcement tooling features a pad beam installed beneath the pier body. The pad beam is welded and fixed to the ship's deck to reduce direct contact between the pier body and the ship's keel, protecting the keel from damage and providing a limiting and fixing function for the pier body. Precision-rolled threaded steel bars and tightening frames are used on both sides of the pier body. The two ends of the precision-rolled threaded steel bars are connected and fixed to the corbels on the sides of the pier body and the bottom pad beam, ensuring the vertical fixation of the pier body and reducing swaying caused by ship movement. It is better suited for bottom-section bell-shaped piers and standard-section pier bodies, ensuring reliable fixation of the pier body's sides and tight fixation between the pier body and the bottom pad beam. Furthermore, an adaptive adjustment mechanism is used to adjust the pier body in real time, facilitating stability.
[0018] Compared with existing technologies, this prefabricated bridge pier transport and reinforcement tooling utilizes detachable bolts to connect the tightening frame to the pad beam for limiting, and the work platform and ladder are also connected to the tightening frame for limiting. The bridge pier body is installed on top of the pad beam, which consists of horizontal and vertical beams. One end of a precision-rolled threaded steel bar is fixedly connected to the pad beam, and the precision-rolled threaded steel bar is connected to the bracket on the side end face of the bridge pier body for limiting through a reinforcing plate and limiting bolts. At the same time, the bridge pier body is limited by fastening square tubes and anti-slip pads, thereby ensuring reliable fixation of the side of the bridge pier body and reducing the swaying of the bridge pier body caused by ship rolling.
[0019] Compared with existing technologies, this prefabricated bridge pier transport and reinforcement tooling is used in which the first and second hydraulic cylinders in the adaptive adjustment mechanism drive the articulated ball head, articulated ball seat and support plate to be closely arranged with the bridge pier body. Pressure and angle sensors are used to detect the pressure and angle status in real time, so as to facilitate the real-time adjustment of the shape and position of the bridge pier body installation, so as to better ensure the stability of the bridge pier body. Attached Figure Description
[0020] Figure 1 This is a first-view orthographic sectional view of the bridge pier body of this utility model.
[0021] Figure 2 This is a schematic diagram of the second-view orthographic section of the pier body of this utility model.
[0022] Figure 3 This is a schematic diagram of the cross-sectional structure of the precision rolled threaded steel of this utility model.
[0023] Figure 4 This is a top-section schematic diagram of the pad beam structure of this utility model.
[0024] The attached diagram is labeled as follows: 1. Pier body; 11. Corbel; 2. Pad beam; 21. Crossbeam; 22. Longitudinal beam; 3. Precision rolled threaded steel bar; 31. Reinforcing plate; 32. Limit bolt; 4. Tightening frame; 41. Workbench; 42. Ladder; 5. Fastening square tube; 51. Anti-slip mat; 6. Adaptive adjustment mechanism; 61. First hydraulic cylinder; 62. Second hydraulic cylinder; 63. Hinge ball joint; 64. Hinge ball seat; 65. Support plate; 66. Pressure sensor; 67. Angle sensor. Detailed Implementation
[0025] 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.
[0026] Example
[0027] As attached Figures 1 to 4 The prefabricated bridge pier reinforcement fixture shown includes a pier body 1, a pad beam 2, a precision-rolled threaded steel bar 3, a tightening frame 4, and a fastening square tube 5. The pier body 1 is placed on the upper end face of the pad beam 2. The precision-rolled threaded steel bar 3 is provided on the upper end face of the pad beam 2. The tightening frame 4 is connected to the side end face of the pad beam 2 by detachable bolts, and the fastening square tube 5 is installed laterally through and limited on the side end face of the tightening frame 4. The side end face of the pier body 1 is provided with a bracket 11. An adaptive adjustment mechanism 6 is provided on the upper end face of the pad beam 2 and the side of the tightening frame 4 near the pier body 1. The adaptive adjustment mechanism 6 includes a first hydraulic cylinder 61 and a second hydraulic cylinder 62. The first hydraulic cylinder 61 is specifically installed on the side end face of the tightening frame 4. The telescopic end of the first hydraulic cylinder 61 is connected to a hinge ball seat 64 through a hinge ball joint 63, and the hinge ball joint 62 is connected to the second hydraulic cylinder 62. The seat 64 is installed on the side end face of the support plate 65. The contact surface between the hinge ball seat 64 and the support plate 65 is provided with a pressure sensor 66. Angle sensors 67 are provided at the four corners of the support plate 65. The first hydraulic cylinder 61 and the second hydraulic cylinder 62 have the same structure. The extension end of the first hydraulic cylinder 61 forms a rotating structure around the center of the hinge ball head 63 through the hinge ball head 63 and the hinge ball seat 64 on the side end face of the support plate 65. The first hydraulic cylinder 61 and the second hydraulic cylinder 62 in the adaptive adjustment mechanism 6 respectively drive the hinge ball head 63, the hinge ball seat 64 and the support plate 65 to be arranged in close contact with the pier body 1. The pressure and angle states are detected in real time by the pressure sensor 66 and the angle sensor 67, so as to facilitate the real-time adjustment of the installation shape and position of the pier body 1 to ensure the stability of the pier body 1.
[0028] The pad beam 2 consists of a crossbeam 21 and a longitudinal beam 22, which are arranged in a crisscross pattern. Both the crossbeams 21 and 22 are made of high-strength steel. Rubber pads are installed on the upper surfaces of the crossbeams 21 and 22 in the pad beam 2. The crossbeams 21 and 22 in the pad beam 2 are welded to the upper surface of the ship's deck. The second hydraulic cylinder 62 is specifically installed at the intersection of the crossbeams 21 and 22 in the pad beam 2, and the mechanism of the extension end of the second hydraulic cylinder 62 is the same as that of the extension end of the first hydraulic cylinder 61. The pier body 1 is installed on top of the pad beam 2, and the pad beam 2 consists of the crossbeams 21 and 22. The structure consists of longitudinal beams 22, with two sets of precision-rolled threaded steel bars 3, each set containing two bars. A reinforcing plate 31 is fitted onto the outer diameter surface of each threaded steel bar 3. Limit bolts 32 are installed on the outer diameter surface of each threaded steel bar 3. One end of each threaded steel bar 3 is fixedly connected to the pad beam 2. The threaded steel bar 3 is also limited and connected to the corbel 11 on the side end face of the pier body 1 via the reinforcing plate 31 and the limit bolts 32. A workbench 41 is installed on the side end face of the tightening frame 4, and a ladder 42 is installed on the side end face of the workbench 41. The workbench 41 is limited and connected to the tightening frame 4 via detachable bolts. Ladder 42 is connected to workbench 41 via detachable bolts. The tightening frame 4 is also connected to pad beam 2 via detachable bolts. Workbench 41 and ladder 42 are connected to tightening frame 4. Precision rolled threaded steel 3 longitudinally penetrates the corbel 11 and reinforcing plate 31 arranged on the side end face of pier body 1 and is connected to limiting bolt 32. The first hydraulic cylinder 61 and second hydraulic cylinder 62 in the adaptive adjustment mechanism 6 are both in close contact with pier body 1. The side end face of tightening frame 4 is connected to fastening square tube 5 via pins. An anti-slip pad 51 is provided at the end of fastening square tube 5 that contacts pier body 1. The pier body 1 is limited by fastening the square tube 5 and the anti-slip pad 51, thereby ensuring the reliable fixation of the side of the pier body 1 and reducing the swaying of the pier body 1 caused by the swaying of the ship. In this embodiment, the first hydraulic cylinder 61, the second hydraulic cylinder 62, the hinge ball head 63 and the hinge ball seat 64, as well as the pressure sensor 66 and the angle sensor 67 are all commercially available devices known to those skilled in the art. They can be customized or selected according to actual needs. Here we are only using them without making any structural or functional improvements, and we will not go into details here.
[0029] The working process of this utility model is as follows: First, the tightening frame 4 is connected to the pad beam 2 by detachable bolts, and the workbench 41 and ladder 42 are connected to the tightening frame 4 for limiting. Then, the pier body 1 is installed on top of the pad beam 2. Since the pad beam 2 is composed of a cross beam 21 and a longitudinal beam 22, and the precision-rolled threaded steel bar 3 is fixedly connected to the pad beam 2, the precision-rolled threaded steel bar 3 is limited and connected to the corbel 11 on the side end face of the pier body 1 by the reinforcing plate 31 and the limiting bolt 32. The square tube 5 and the anti-slip pad 51 are used for fastening. Limiting the pier body 1 ensures reliable fixation of the side of the pier body 1, reducing the swaying of the pier body 1 caused by the swaying of the ship. In the adaptive adjustment mechanism 6, the first hydraulic cylinder 61 and the second hydraulic cylinder 62 respectively drive the hinge ball head 63, the hinge ball seat 64 and the support plate 65 to be arranged in close contact with the pier body 1. The pressure sensor 66 and the angle sensor 67 detect the pressure and angle status in real time, and adjust the installation shape and position of the pier body 1 in real time to ensure the stability of the pier body 1.
Claims
1. An assembled prefabricated pier shipping reinforcement tool, comprising a pier body (1), a cushion beam (2), a fine rolling threaded steel (3), a tightening frame (4) and a fastening square tube (5), characterized in that: The pier body (1) is placed on the upper end face of the pad beam (2). The upper end face of the pad beam (2) is provided with a precision rolled threaded steel bar (3). The side end face of the pad beam (2) is connected to a tightening frame (4) by a detachable bolt. The side end face of the tightening frame (4) is laterally connected with a fastening square tube (5) for limiting. The side end face of the pier body (1) is provided with a corbel (11). The upper end face of the pad beam (2) and the side of the tightening frame (4) near the pier body (1) are provided with an adaptive adjustment mechanism (6). The adaptive adjustment mechanism (6) includes a first hydraulic cylinder (61) and a second hydraulic cylinder (62). The first hydraulic cylinder (61) is specifically installed on the side end face of the tightening frame (4). The telescopic end of the first hydraulic cylinder (61) is connected to a hinge ball seat (64) through a hinge ball head (63). The hinge ball seat (64) is installed on the side end face of the support plate (65). A pressure sensor (66) is provided on the contact surface between the hinge ball seat (64) and the support plate (65). Angle sensors (67) are provided at the four corners of the support plate (65). The first hydraulic cylinder (61) and the second hydraulic cylinder (62) have the same structure.
2. The prefabricated bridge pier ship-mounted reinforcement tooling according to claim 1, characterized in that: The pad beam (2) consists of a cross beam (21) and a longitudinal beam (22), and the cross beam (21) and the longitudinal beam (22) are arranged in a cross pattern. Both the cross beam (21) and the longitudinal beam (22) are made of high-strength steel. Rubber pads are provided on the upper surfaces of the cross beam (21) and the longitudinal beam (22) in the pad beam (2). The cross beam (21) and the longitudinal beam (22) in the pad beam (2) are welded and installed on the upper surface of the ship's deck.
3. The prefabricated bridge pier reinforcing tooling of claim 1, wherein: The second hydraulic cylinder (62) is specifically installed at the intersection of the crossbeam (21) and the longitudinal beam (22) in the pad beam (2), and the mechanism of the extension end of the second hydraulic cylinder (62) is the same as the mechanism of the extension end of the first hydraulic cylinder (61).
4. The prefabricated bridge pier ship-mounted reinforcement tooling kit according to claim 1, characterized in that: The fine-rolled threaded steel (3) is provided in two sets, and each set of the fine-rolled threaded steel (3) is provided with two steel bars. The outer diameter surface of the fine-rolled threaded steel (3) is fitted with a reinforcing plate (31), and the outer diameter surface of the fine-rolled threaded steel (3) is provided with a limit bolt (32).
5. The prefabricated bridge pier ship-mounted reinforcement tooling kit according to claim 1, characterized in that: The tightening frame (4) has a workbench (41) on its side end face, and a ladder (42) is provided on the side end face of the workbench (41). The workbench (41) is connected to the tightening frame (4) by a detachable bolt, and the ladder (42) is connected to the workbench (41) by a detachable bolt.
6. The prefabricated bridge pier transport and reinforcement tooling according to claim 4, characterized in that: The fine-rolled threaded steel (3) sequentially penetrates the corbel (11) and reinforcing plate (31) arranged on the side end face of the pier body (1) and is limited and connected by the limiting bolt (32). The first hydraulic cylinder (61) and the second hydraulic cylinder (62) in the adaptive adjustment mechanism (6) are both close to the pier body (1).
7. The prefabricated bridge pier ship-mounted reinforcement tooling kit according to claim 1, characterized in that: The side end face of the tightening frame (4) is connected to the fastening square tube (5) by means of a pin connection, and the end of the fastening square tube (5) that contacts the pier body (1) is provided with an anti-slip pad (51).
8. The prefabricated bridge pier ship-mounted reinforcement tooling kit according to claim 1, characterized in that: The telescopic end of the first hydraulic cylinder (61) is connected with the hinged ball seat (64) of the side end face of the support plate (65) through the hinged ball head (63) to form a rotating structure rotating around the ball center of the hinged ball head (63).