Jacking and fixing tool for pier body shipping

Abstract

The pier body shipping jacking and fixing tool comprises a bearing beam, tensioning limiting devices are symmetrically arranged on the two longitudinal sides of the bearing beam, and jacking limiting devices are symmetrically arranged on the two transverse sides of the bearing beam; the tensioning limiting device comprises a middle bracket, side brackets are symmetrically arranged on the two sides of the middle bracket, a middle connecting mechanism used for being connected with a bearing beam is arranged on the lower portion of the middle bracket, and side connecting mechanisms used for being connected with a pier body and tensioning mechanisms used for being connected with the bearing beam are arranged on the side brackets. The tightening limiting device comprises a tightening frame, a plurality of tightening mechanisms and auxiliary mechanisms are arranged on the tightening frame, and the bottom of the tightening frame is rigidly fixed to the bearing beam. The device can be adjusted in the longitudinal direction and the transverse direction, the technical problem that in the pier body transportation process, due to the fact that sectional beams are different in size, a transportation tool cannot be universally used is effectively solved, the transportation efficiency of pier body sections is guaranteed, and the manufacturing cost of the tool is saved.

Description

Technical Field

[0001] The invention belongs to the technical field of marine transportation of prefabricated bridge piers, and in particular relates to a pier body shipping jacking and fixing tool. Background Art

[0002] In the construction of cross-sea bridges, prefabricated piers utilize a standardized, modular, and factory-based operation model. Compared to traditional cast-in-place pier construction methods, this not only reduces construction costs and safety risks, but also improves project quality and shortens construction time. Consequently, the integral prefabrication of piers is increasingly being used in bridge construction. When transporting prefabricated piers by barge, locking and limiting devices are required between the pier segments and the transport barge to prevent overturning and relative movement. This secures the pier and barge together and ensures safe transportation. Furthermore, the precast concrete segmental beams of offshore piers are divided into three sections: upper, middle, and lower. Each section has varying dimensions, making a single set of transport fastening fixtures incapable of meeting the transport requirements for all pier segments. Therefore, to save transportation costs and improve efficiency, a pier ship fastening fixture has been developed, taking into account the characteristics of the pier and ship structures, to meet the maritime transport requirements for piers of varying sizes. Summary of the Invention

[0003] In view of this, the present invention aims to overcome the defects in the prior art and proposes a pier body shipping jacking and fixing tool.

[0004] To achieve the above object, the technical solution created by the present invention is implemented as follows:

[0005] A pier body shipping jacking and fixing tool comprises a pad beam, with tensioning limit devices symmetrically provided on both sides of the pad beam in the longitudinal direction and jacking limit devices symmetrically provided on both sides of the pad beam; the tensioning limit device comprises a middle corbel, with side corbels symmetrically provided on both sides of the middle corbel, a middle connecting mechanism for connecting to the pad beam is provided at the lower part of the middle corbel, and a side connecting mechanism for connecting to the pier body and a tensioning mechanism for connecting to the pad beam is provided on the side corbel; the jacking limit device comprises a tightening frame, with several tightening mechanisms and auxiliary mechanisms provided on the tightening frame, and the bottom of the tightening frame is rigidly fixed to the pad beam.

[0006] Furthermore, the tightening mechanism includes a tightening bolt screwed horizontally on the tightening frame, and an end cap is provided on one end of the tightening bolt facing the pier body.

[0007] Furthermore, the middle connecting mechanism includes a connecting bolt passing through the middle corbel, and a locking nut and a locking nut washer are provided on the connecting bolt.

[0008] Furthermore, the tensioning mechanism includes a tensioning beam arranged at the upper end of the side corbel, and a plurality of pull rods are provided on the tensioning beam. Each pull rod passes through the side corbel respectively, and a pull rod nut and a pull rod nut washer are provided at the lower end of the pull rod.

[0009] Furthermore, auxiliary mechanisms include but are not limited to escalators and platforms.

[0010] Furthermore, a guardrail is provided on the platform.

[0011] Furthermore, the side connection mechanism includes a climbing cone connection nut installed on the side of the side bracket.

[0012] Furthermore, the climbing cone connecting nut is perpendicular to the tensioning mechanism.

[0013] Compared with the prior art, the present invention has the following advantages:

[0014] The invention can meet the requirements of marine transportation of prefabricated pier bodies of various specifications. When the pier body is fixed, the longitudinal and lateral directions of the tooling can be adjusted, and the fixing and tightening forms of prefabricated pier bodies of different specifications can be combined. Among them, the lateral position is adjusted by the screw in the tightening device, and the longitudinal position is adjusted by the tie rod connection position and the block on the middle corbel. The tie rod can be positioned and adjusted by the hole position set on the pad beam. The screw adjustment is safe and convenient, and the tie rod is easy to install and remove. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings, which constitute part of the present invention, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 A schematic diagram of the three-dimensional structure created by the present invention;

[0017] Figure 2 Elevation drawings created for this invention;

[0018] Figure 3 A side view created for the present invention;

[0019] Figure 4 A top view of the invention;

[0020] Figure 5 This is a schematic structural diagram of the tightening and limiting device in the present invention;

[0021] Figure 6 This is a schematic diagram of the middle corbel portion of the present invention;

[0022] Figure 7 It is a schematic diagram of the side corbel part of the present invention. DETAILED DESCRIPTION

[0023] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0024] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 the present invention. In addition, the terms "first", "second" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, features defined as "first", "second" and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0025] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art can understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0026] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0027] A pier body shipping top tightening fixture, such as Figures 1 to 7 As shown, it includes a pad beam 1, and tensioning limit devices are symmetrically provided on both sides of the pad beam in the longitudinal direction, and tensioning limit devices are symmetrically provided on both sides of the pad beam in the transverse direction; the tensioning limit device includes a middle corbel 4, and side corbels 7 are symmetrically provided on both sides of the middle corbel, and a middle connecting mechanism for connecting with the pad beam is provided at the lower part of the middle corbel, and a side connecting mechanism for connecting with the pier body and a tensioning mechanism for connecting with the pad beam are provided on the side corbels; the tensioning limit device includes a tightening frame 2, and a plurality of tightening mechanisms 3 and auxiliary mechanisms 8 are provided on the tightening frame, and the bottom of the tightening frame is rigidly fixed to the pad beam.

[0028] Typically, the tightening mechanism includes a tightening bolt 30 that is screwed horizontally onto a tightening frame. The end of the tightening bolt facing the pier shaft is equipped with an end cap. The tightening bolt is connected to a threaded hole in the upper portion of the tightening frame, with the end cap facing the pier shaft. A rubber pad 31 is positioned at the contact point on the end cap facing the pier shaft to cushion the forces between the two and prevent damage to the contact surface. During operation, the lateral distance of the fixture can be adjusted by screwing the tightening bolt in and out.

[0029] The central connection mechanism includes a connecting bolt 40 that passes through the middle corbel, which is equipped with a locking nut 41 and a locking nut washer 42. In an optional embodiment, a stopper 9 is provided on the side of the middle corbel facing the pier body. By adjusting the thickness of the stopper, the longitudinal position of the tooling can be changed to better adapt to the pier body structure. After the middle corbel is stabilized against the pier body by the stopper, the locking nut on the locking rod is tightened to complete the longitudinal fixation of the pier body.

[0030] The tensioning mechanism includes a tensioning beam 5 provided at the upper end of the side corbel, on which are mounted several tie rods 6, each of which passes through the side corbel. Tie rod nuts 60 and tie rod nut washers 61 are provided at the lower ends of the tie rods. The lower ends of the tie rods pass through holes in the bottom of the side corbel and connect to the pad beam below. Nuts and washers are provided at both ends of the tie rods. During use, the longitudinal distance is adjusted by adjusting the hole positions of the tie rods.

[0031] Auxiliary mechanisms include but are not limited to escalators and platforms. Preferably, a guardrail is provided on the platform. The side connection mechanism includes a climbing cone connecting nut 70 installed on the side of the side corbel. Preferably, the climbing cone connecting nut is perpendicular to the tensioning mechanism. When used, the side corbel is connected to the climbing cone embedded in the pier body by bolts. The pad beam is the main load-bearing mechanism, which transfers the force of the pier body to the hull structure. In an optional embodiment, a rubber pad is provided on the upper surface of the pad beam to effectively improve the stability of the combination between the bottom of the pier body and the surface of the pad beam.

[0032] This invention utilizes a combination of tie rod positioning and fixing, bolt limit tightening, and corbel tightening to address the technical difficulty of achieving universal transport tooling due to the varying sizes of segmental beams during pier transportation. This ensures efficient transportation of pier segments and reduces tooling manufacturing costs. Furthermore, this invention is suitable for fixed tightening of pier segment beams of various sizes during maritime transportation. The tightening and limiting device and tie rod assembly and disassembly are highly efficient, the screws are easily adjustable, and pier transportation is safe and reliable. This invention has significant promotional value and positive social benefits, providing a valuable reference for the maritime transportation of prefabricated piers.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A pier body shipping jacking and fixing tool, characterized by: It includes a pad beam, which has tensioning limit devices symmetrically provided on both sides of the longitudinal direction and jacking limit devices symmetrically provided on both sides of the transverse direction; the tensioning limit device includes a middle corbel, which has side corbels symmetrically provided on both sides of the middle corbel, a middle connecting mechanism for connecting with the pad beam is provided at the lower part of the middle corbel, and a side connecting mechanism for connecting with the pier body and a tensioning mechanism for connecting with the pad beam is provided on the side corbel; the jacking limit device includes a tightening frame, which has several tightening mechanisms and auxiliary mechanisms, and the bottom of the tightening frame is rigidly fixed to the pad beam.

2. The pier body shipping jacking and fixing device according to claim 1, characterized in that: The tightening mechanism comprises a tightening bolt which is screwed horizontally on the tightening frame, and a tightening end cap is provided on one end of the bolt which faces the pier body.

3. The pier body shipping jacking and fixing device according to claim 1, characterized in that: The middle connecting mechanism comprises a connecting bolt which is passed through the middle bracket, and a locking nut and a locking nut washer are arranged on the connecting bolt.

4. The pier body shipping jacking and fixing device according to claim 1, characterized in that: The tensioning mechanism includes a tensioning beam arranged at the upper end of the side corbel, and a plurality of pull rods are arranged on the tensioning beam. Each pull rod passes through the side corbel respectively, and a pull rod nut and a pull rod nut washer are provided at the lower end of the pull rod.

5. The pier body shipping jacking and fixing device according to claim 1, characterized in that: Auxiliary facilities include but are not limited to escalators and platforms.

6. The pier body shipping jacking and fixing device according to claim 5, characterized in that: A guardrail is provided on the platform.

7. The pier body shipping jacking and fixing device according to claim 1, characterized in that: The side connection mechanism includes a climbing cone connection nut installed on the side of the side bracket.

8. The pier body shipping jacking and fixing device according to claim 7, characterized in that: The climbing cone connecting nut is perpendicular to the tensioning mechanism.

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