A containment system for installation of a berthing member

Abstract

The utility model provides a kind of for the enclosing system of wharf member installation, it is related to wharf wharf member installation technical field, including: rock-socketed pile steel sleeve;Steel corbel;The steel corbel is retained after rock-socketed pile construction temporary steel platform dismantling, and reuse as the enclosing system support pedestal of wharf member installation, the steel corbel of both sides is still respectively fixed with outer extension steel beam on sea side, the resting cantilever beam is fixedly connected with embedded channel steel arranged on prefabricated wharf member, to form the enclosing system of wharf member installation.The enclosing system formed by the utility model effectively solves the defect that wharf member installation needs to be additionally installed support pedestal, can effectively reduce construction cost;Reduce the amount of steel of one-time investment in installation;The installation mode of the utility model makes it unnecessary to carry out counter-pressure from the other side of outer extension steel beam, while guaranteeing structural strength, further reduces the amount of steel.

Description

Technical Field

[0001] This utility model relates to the field of dock berthing component installation technology, specifically a cofferdam system for installing berthing components. Background Technology

[0002] The berthing component is a crucial part of berthing at high-pile beam-slab or high-pile pier structure wharves. Its common structural form is a precast concrete cantilever beam or cantilever slab, requiring high stress on the support system and exhibiting a relatively complex structure. The installation of the berthing component is related to the pouring progress of the superstructure and the straightness of the wharf's front line. Based on the different load-bearing methods, the installation methods of the berthing component can be divided into three types: resting, suspended, and bottom-supported installation. Currently, the conventional method for installing berthing components involves prefabricating the component and preparing for installation, such as reserving installation holes or embedding steel sections. Appropriate treatment is then done at the intended installation location. Resting and suspended installations require steel beams to be installed on top of the piles, while bottom-supported installations require clamp brackets. Construction of the superstructure, such as pile caps and beams, is carried out only after the berthing component is securely installed.

[0003] A prior art patent, CN212641367U, discloses a mooring component for reducing construction difficulty. It includes two load-bearing beams, support piles with connecting steel bars (two in number), and corbels with connecting steel bars (one in number). The corbels have at least two pre-drilled load-bearing holes extending through both sides, and each hole contains a support rod. The two ends of each support rod are respectively mounted on the two load-bearing beams. This device effectively reduces construction difficulty.

[0004] However, the device still has some obvious defects in use: the device is installed by installing clamps on the outside of the rock-socketed pile after it is formed, and the installation process is still not simple enough. In addition, the installation method of the berthing component requires the load-bearing beam to extend backward to provide counter-pressure load-bearing. Its structural form can still be optimized. Utility Model Content

[0005] The purpose of this invention is to provide a cofferdam system for installing berthing components, in order to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A cofferdam system for installing berthing components, comprising:

[0008] Rock-embedded pile steel sleeve, wherein the rock-embedded pile steel sleeve is a hollow cylindrical structure, and its internal hollow area is used for lowering the reinforcing cage and pouring rock-embedded concrete.

[0009] Steel brackets, which are welded to both sides of the steel sleeve of the rock-socketed pile and arranged along the longitudinal beam of the wharf, were originally used to support the temporary steel platform for the construction of the rock-socketed pile;

[0010] The steel brackets are retained after the temporary steel platform for rock-socketed pile construction is dismantled and reused as the support base for the cofferdam system when installing the berthing components. The steel brackets on both sides are also fixedly equipped with outward-extending steel beams on the seaward side. A pair of cantilever beams are fixedly installed at the upper end of the outward-extending steel beams on both sides. The cantilever beams are fixedly connected to the pre-embedded channel steel installed on the prefabricated berthing components, thereby forming the cofferdam system for the installation of the berthing components.

[0011] Preferably, the steel bracket is composed of parallel steel plates arranged vertically and three vertical steel plates arranged between the parallel steel plates.

[0012] Preferably, the steel brackets on both sides have two transverse stiffening ribs welded between the vertical steel plates on the seaward side to support the outward-extending steel beams and prevent the vertical steel plates of the steel brackets from buckling.

[0013] Preferably, the extended steel beams on both sides are I-beams. One end face of the extended steel beam is welded and fixed to the outside of the steel bracket with stiffening ribs on one side. The position of the stiffening ribs of the steel bracket corresponds to the position of the upper and lower flanges of the extended steel beam. The extended steel beams on both sides are arranged in parallel.

[0014] Preferably, four pre-embedded channel steels are provided, with two vertically arranged pre-embedded channel steels pre-embedded on each side of the prefabricated berthing component. The exposed length of the pre-embedded channel steels is calculated based on the height of the extended steel beam on the steel bracket and the required installation height of the prefabricated berthing component.

[0015] Preferably, the cantilever beams are suspended on parallel extended steel beams on both sides and welded and fixed, and both pairs of cantilever beams are arranged parallel to the length direction of the prefabricated berthing component.

[0016] Preferably, the pre-embedded channel steels on both sides of the prefabricated berthing component are welded and fixed to the corresponding extended steel beams on both sides, and the two pre-embedded channel steels on the same side are welded and fixed to the front and rear directions of the extended steel beams on the same side.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] The enclosure system formed by this utility model reuses the corbel used to erect a temporary steel platform during the construction of rock-socketed piles. It can effectively solve the defect that additional support bases are required for the installation of berthing components. Since the steel corbel already exists in the previous construction steps, it can effectively reduce construction costs compared to the installation method that requires additional support components such as pile top distribution beams, and achieve cost sharing.

[0019] This utility model uses pre-reserved steel brackets to control the elevation, and welds extended steel beams onto the brackets. Precast berthing components are suspended on the extended steel beams of the brackets, reducing the amount of steel used in the installation at one time and lowering construction costs. The cofferdam system adopts a cooperative load-bearing design of cantilever load-bearing beams and steel bracket structures, which significantly reduces its suspension installation height, optimizes the structural space layout, effectively controls the steel consumption of precast berthing components with embedded channel steel, and avoids the later cutting process of exposed steel in traditional processes, eliminating redundant operation links, significantly reducing the risk of corrosion caused by steel structure exposure, and systematically improving the safety performance and durability of the overall structure.

[0020] The installation method of this utility model eliminates the need for counter-pressure from the other side of the extended steel beam, further reducing the amount of steel used while ensuring structural strength. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] In the diagram: 1. Rock-socketed steel sleeve, 2. Steel bracket, 3. Stiffening rib, 4. Outrigger steel beam, 5. Cantilever beam, 6. Embedded channel steel, 7. Precast berthing components. Detailed Implementation

[0023] 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.

[0024] Please see Figure 1 This utility model provides a technical solution:

[0025] Example 1:

[0026] A cofferdam system for installing berthing components, comprising:

[0027] Rock-socketed steel sleeve 1 is a hollow cylindrical structure. Its internal hollow area is used for lowering the reinforcing cage and pouring rock-socketed concrete.

[0028] Steel bracket 2 is welded and installed on both sides of the rock-socketed pile steel sleeve 1 and arranged along the longitudinal beam of the wharf. It was originally used to support the temporary steel platform for the construction of the rock-socketed pile.

[0029] The steel bracket 2 is retained after the temporary steel platform for rock-socketed pile construction is dismantled and reused as a support base for the cofferdam system when installing the berthing components. The steel bracket 2 on both sides is also fixedly equipped with an extended steel beam 4 on the seaward side. A pair of cantilever beams 5 are fixedly installed on the upper end of the extended steel beams 4 on both sides. The cantilever beams 5 are fixedly connected to the pre-embedded channel steel 6 installed on the prefabricated berthing components 7, thus forming the cofferdam system for the installation of the berthing components.

[0030] The steel bracket 2 consists of parallel steel plates arranged vertically and horizontally, and three vertical steel plates arranged between the parallel steel plates.

[0031] Two transverse stiffening ribs 3 are welded between the vertical steel plates on the seaward side of the steel brackets 2 on both sides to support the outward steel beams 4 and prevent the vertical steel plates of the steel brackets 2 from buckling.

[0032] The two extended steel beams 4 are I-beams. One end face of the extended steel beam 4 is welded and fixed to the outside of the steel bracket 2 on the side with stiffening rib 3. The position of the stiffening rib 3 of the steel bracket 2 corresponds to the position of the upper and lower flanges of the extended steel beam 4. The two extended steel beams 4 are arranged in parallel.

[0033] Four embedded channel steels 6 are provided. Two vertical embedded channel steels 6 are embedded on each side of the prefabricated berthing component 7. The exposed length of the embedded channel steels 6 is calculated based on the height of the extended steel beam 4 on the steel bracket 2 and the required installation height of the prefabricated berthing component 7.

[0034] The cantilever beam 5 is suspended on the parallel extended steel beams 4 on both sides and fixed by welding. Both pairs of cantilever beams 5 are set parallel to the length direction of the prefabricated berthing component 7.

[0035] The pre-embedded channel steels 6 set on both sides of the prefabricated berthing component 7 are welded and fixed to the corresponding extended steel beams 4 on both sides. The two pre-embedded channel steels 6 set on the same side are welded and fixed to the front and rear directions of the extended steel beams 4 on the same side.

[0036] In this embodiment, the steel bracket 2 of the prefabricated berthing component 7 is originally used to erect a temporary steel platform. The steel bracket 2 is welded to both sides of the rock-socketed pile steel sleeve 1 along the longitudinal beam direction. The steel bracket 2 consists of two parallel steel plates at the top and bottom and three vertical steel plates in the middle. Two stiffening ribs 3 are welded between the two vertical steel plates on the offshore side. The positions of the stiffening ribs 3 correspond to the positions of the upper and lower flanges of the outer side where the extended steel beam 4 is to be welded, which is used to strengthen the supporting force of the extended steel beam 4 and prevent the vertical steel plates from buckling. After the rock-socketed pile construction is completed, the steel platform is removed, and the extended steel beam 4 is welded on the offshore side of the steel bracket 2, that is, on the outside of the vertical steel plate with stiffening ribs 3. The extended steel beam 4 is constructed using a machine tool. The I-beam, with its excellent bending resistance, light weight, and strong load-bearing capacity, is used to place the cantilever beam 5 to suspend the precast berthing component 7. As a supporting structure for the installation of the precast berthing component 7, two pre-embedded channel steels 6 are pre-embedded on both sides of the precast berthing component 7. Two channel steels are welded in parallel above the pre-embedded channel steels 6 in an "=" shape to serve as the cantilever beam 5. The welding position is calculated by measuring the elevation of the extended steel beam 4 and combining it with the installation position elevation of the precast berthing component 7. Then, the precast berthing component 7 is hoisted and installed, and the cantilever beam 5 is erected on the extended steel beam 4 and welded and fixed. After installation, it is cast in place with the pile cap to form an integral whole, which provides a certain counter-pressure effect on the extended steel beam 4.

[0037] The construction process of this prefabricated berthing component cofferdam system is described below:

[0038] Remove the temporary steel platform for supporting the rock-socketed pile construction installed on the steel bracket 2 of the rock-socketed pile steel sleeve 1 → retain the steel bracket 2 on the rock-socketed pile steel sleeve 1 for reuse → fabricate the precast berthing component 7, insert the embedded channel steel 6 during its casting process → weld the extended steel beam 4 on one side of the steel bracket 2 → weld the embedded channel steel 6 of the precast berthing component 7 to the supporting cantilever beam 5 → place the precast berthing component 7 on the extended steel beam 4 set parallel on both sides through the supporting cantilever beam 5 → weld the supporting cantilever beam 5 and the extended steel beam 4 → cast the pile cap to form the pile.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cofferdam system for installing berthing components, characterized in that, include: Rock-embedded pile steel sleeve, wherein the rock-embedded pile steel sleeve is a hollow cylindrical structure, and its internal hollow area is used for lowering the reinforcing cage and pouring rock-embedded concrete. Steel brackets, which are welded to both sides of the steel sleeve of the rock-socketed pile and arranged along the longitudinal beam of the wharf, were originally used to support the temporary steel platform for the construction of the rock-socketed pile; The steel brackets are retained after the temporary steel platform for rock-socketed pile construction is dismantled and reused as the support base for the cofferdam system when installing the berthing components. The steel brackets on both sides are also fixedly equipped with outward-extending steel beams on the seaward side. A pair of cantilever beams are fixedly installed at the upper end of the outward-extending steel beams on both sides. The cantilever beams are fixedly connected to the pre-embedded channel steel installed on the prefabricated berthing components, thereby forming the cofferdam system for the installation of the berthing components.

2. A cofferdam system for installing berthing components according to claim 1, characterized in that: The steel bracket is composed of parallel steel plates arranged vertically and three vertical steel plates arranged between the parallel steel plates.

3. A cofferdam system for installing berthing components according to claim 1 or 2, characterized in that: The steel brackets on both sides have two transverse stiffening ribs welded between the vertical steel plates on the seaward side to support the outward-extending steel beams and prevent the vertical steel plates of the steel brackets from buckling.

4. A cofferdam system for installing berthing components according to claim 3, characterized in that: The extended steel beams on both sides are I-beams. One end face of the extended steel beam is welded and fixed to the outside of the steel bracket with stiffening ribs on one side. The position of the stiffening ribs of the steel bracket corresponds to the position of the upper and lower flanges of the extended steel beam. The extended steel beams on both sides are arranged in parallel.

5. A cofferdam system for installing berthing components according to claim 4, characterized in that: Four pre-embedded channel steels are provided, with two vertically arranged pre-embedded channel steels on each side of the prefabricated berthing component. The exposed length of the pre-embedded channel steels is calculated based on the height of the extended steel beam on the steel bracket and the required installation height of the prefabricated berthing component.

6. A cofferdam system for installing berthing components according to claim 5, characterized in that: The cantilever beams are suspended on the parallel extended steel beams on both sides and welded in place. Each pair of cantilever beams is parallel to the length of the prefabricated berthing component.

7. A cofferdam system for installing berthing components according to claim 6, characterized in that: The pre-embedded channel steels on both sides of the prefabricated berthing component are welded and fixed to the corresponding extended steel beams on both sides, and the two pre-embedded channel steels on the same side are welded and fixed to the front and rear directions of the extended steel beams on the same side.

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