A process for installing a plate-type berthing member

Abstract

The application is a kind of plate type berthing component installation process, comprising the following steps: step one: prefabricating berthing component; step two: casting pile cap; step three: installing double-spliced I-beam; step four: hoisting berthing component; step five: limiting and fixing berthing component; step six: pouring concrete at the joint of berthing component and pile cap. The application adopts the process to install suspended plate type berthing component, and the construction efficiency is higher, which can complete the installation of 4 components per day; the double-spliced I-beam is used and the fine rolled threaded steel is fixed on the pile cap, which better solves the supporting stress problem during the installation of plate type berthing component; the bracket is arranged at the bottom of the berthing component, and the reinforcing steel support is arranged on both sides of the bracket, which better solves the problem of poor stability of the berthing component under wind and wave.

Description

Technical Field

[0001] This invention relates to the field of berthing component installation and construction, and particularly to an installation process for plate-type berthing components. Background Technology

[0002] Berthing components are specially designed to withstand the impact and ramming forces of ships when berthing at the dock. In the case of high-pile quay structures, berthing components are installed at the front edge of the quay. Currently, the installation methods for berthing components are mainly divided into two types: suspended and suspended.

[0003] The resting type berthing component mainly relies on the brackets of the berthing component to rest on the pile cap as the load-bearing system. The installation of the component and the control of its alignment are relatively easy. After the installation is completed, the berthing component is temporarily fixed by welding tie rods or extending steel bars of the component. This method of temporary fixing of the structure is time-consuming and labor-intensive, and the construction efficiency is low.

[0004] When installing suspended berthing components, the structure itself has no point of support. During the installation of berthing components, a temporary load-bearing structure needs to be set up. The temporary load-bearing structure is generally a certain amount of steel pre-embedded in the berthing components. The steel is temporarily fixed to the load-bearing beam. During installation, it is easy to sway under the influence of tides, resulting in poor stability. After the installation is completed, the protruding steel on the surface of the berthing components needs to be cut off, which is time-consuming and labor-intensive. Summary of the Invention

[0005] The present invention aims to address the shortcomings of the prior art by providing a process for installing plate-type berthing components.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an installation process for a plate-type berthing component, comprising the following steps:

[0007] Step 1: Prefabricate berthing components;

[0008] During the prefabrication of each berthing component, the first precision-rolled threaded steel bar is pre-embedded at the top of both ends;

[0009] Step 2: Cast-in-place pile caps;

[0010] Pile caps are poured on top of the pile foundation. When pouring the pile caps, the connection between the berthing components and the pile caps is not poured yet, and PVC pipes are pre-embedded at both ends of each pile cap.

[0011] Step 3: Install double-section I-beams;

[0012] The double-section I-beam is made of several sections of double-section I-beam welded together. Every 50cm, a 1cm thick steel plate is used for reinforcement welding to ensure the structural strength of the double-section I-beam.

[0013] First steel pads are placed at both ends of the top of the pile cap. The double-I-beam is then hoisted onto the first steel pads. Second steel pads are placed at both ends of the top of the double-I-beam. The gaps between the first steel pad, the second steel pad, and the double-I-beam correspond to the PVC pipe of the pile cap. A second precision-rolled threaded steel bar is passed through the PVC pipe. The bottom of the second precision-rolled threaded steel bar is threaded with a first support that abuts against the bottom of the pile cap, and the top is threaded with a second support that abuts against the top of the second steel pad. The double-I-beam is fixed to the pile cap by the second precision-rolled threaded steel bar, the first support, and the second support.

[0014] Step 4: Hoisting and installing berthing components;

[0015] Using a floating crane, the berthing component is slowly moved from a lying position to an upright position on the deck. After being lifted, the berthing component is slowly moved closer to the installation position. Four ropes are set on the top of the berthing component, and the tension of the ropes is controlled by a dedicated person to prevent the berthing component from twisting during the lifting process. When the height of the berthing component is consistent with the installation elevation, the floating crane is moved horizontally to push the berthing component into place.

[0016] After the berthing component is hoisted into place, the elevation, front line position, and gap width of the adjacent blocks of the berthing component are measured and verified. Once the requirements are met, the first precision-rolled threaded steel pre-embedded in the berthing component is extended by a connector. A third steel pad corresponding to the first precision-rolled threaded steel is placed on the top of the double-I-beam. The top of the extended first precision-rolled threaded steel passes through the third steel pad and is threadedly connected to a third support that abuts against the top of the third steel pad. The berthing component is fixed on the double-I-beam by the first precision-rolled threaded steel and the third support. The hoisting ropes of the floating crane are loosened to realize the conversion of the load-bearing structure of the berthing component.

[0017] Step 5: Secure and limit the berthing components;

[0018] After verifying that the position, elevation, and verticality of the berthing components are correct, two sets of brackets are installed at the bottom of the berthing components. Reinforcing steel supports are installed on both sides of each bracket. I-beam connecting beams are installed at both ends of the top of the double-I-beam. The reinforcing steel supports on the same side are connected to the I-beam connecting beams to ensure that the berthing components are stable and do not sway under the action of wind and waves.

[0019] Step Six: Pour concrete at the joint between the berthing components and the pile cap;

[0020] After the berthing components are installed and fixed, the protruding steel bars at the joint between the berthing components and the pile cap are tied and installed, and the sealing formwork is installed. Finally, the concrete at the joint is poured, and the double-I-beams, reinforcing steel supports, and I-beam connecting beams are removed to complete the installation of the berthing components.

[0021] Specifically, the first fine-rolled threaded steel bar is located on the center line of gravity of the berthing component, and the connector is located above the pile cap.

[0022] Specifically, the PVC pipe has a diameter of 50mm.

[0023] Specifically, the diameters of the first and second precision-rolled threaded steel bars are 25mm.

[0024] The beneficial effects of this invention are:

[0025] 1. The present invention uses this process to install the suspended plate berthing component, which has high construction efficiency and can complete the installation of 4 components per day.

[0026] 2. The use of double-jointed I-beams fixed to the pile caps with precision-rolled threaded steel effectively solves the problem of support stress during the installation of plate-type berthing components. Furthermore, this support structure is easy to install and dismantle, and is convenient for reuse.

[0027] 3. A bracket is installed at the bottom of the berthing component, and reinforced steel supports are arranged on both sides of the bracket, which effectively solves the problem of the berthing component swaying and having poor stability under wind and waves.

[0028] 4. Only two first-stage threaded steel bars need to be pre-embedded on each berthing component, without the need to pre-embed a large number of additional steel sections, saving materials and reducing construction costs. Furthermore, the first-stage threaded steel bars can be extended through connectors. After installation, the protruding threaded steel bars on the surface of the berthing component are easy to disassemble and reuse. Attached Figure Description

[0029] Figure 1 This is an elevation view of the present invention;

[0030] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0031] Figure 3 for Figure 1 Enlarged view of point B in the middle;

[0032] Figure 4 A plan view of the present invention;

[0033] In the diagram: 1-Boat mooring component; 2-First high-strength threaded steel bar; 3-Pile cap; 4-Pile foundation; 5-PVC pipe; 6-Double-jointed I-beam; 7-First steel pad; 8-Second steel pad; 9-Second high-strength threaded steel bar; 10-First support; 11-Second support; 12-Connector; 13-Third steel pad; 14-Third support; 15-Bracket; 16-Reinforcing steel support; 17-I-beam connecting beam; 18-Outer reinforcing bar;

[0034] The following will describe in detail, with reference to the accompanying drawings, embodiments of the present invention. Detailed Implementation

[0035] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0036] like Figures 1-4 As shown, an installation process for a plate-type berthing component includes the following steps:

[0037] Step 1: Prefabricate 1 berthing component;

[0038] During the prefabrication of each berthing component 1, a first precision-rolled threaded steel bar 2 is pre-embedded at both ends of the top. The diameter of the first precision-rolled threaded steel bar 2 is 25mm, and the first precision-rolled threaded steel bar 2 is located on the center line of gravity of the berthing component 1.

[0039] Step 2: Cast-in-place pile cap 3;

[0040] Pile cap 3 is poured on top of pile foundation 4. When pouring pile cap 3, the connection between berthing component 1 and pile cap 3 is not poured temporarily. It is poured after berthing component 1 is installed. PVC pipe 5 is pre-embedded at both ends of each pile cap 3. The diameter of PVC pipe 5 is 50mm.

[0041] Step 3: Install the double-span I-beams (6).

[0042] The double-section I-beam 6 is welded together from several sections of double-section I-beams. Every 50cm, a 1cm thick steel plate is used for reinforcement welding to ensure the structural strength of the double-section I-beam 6. Based on the weight of the berthing component 1, and through stress calculation and analysis, 40A I-beams are selected for the double-section I-beams.

[0043] First steel pads 7 are placed at both ends of the top of the pile cap 3. The double-I-beam 6 is hoisted onto the first steel pads 7. Second steel pads 8 are placed at both ends of the top of the double-I-beam 6. The gaps between the first steel pads 7, the second steel pads 8, and the double-I-beam 6 correspond to the PVC pipes 5 of the pile cap 3. A second precision-rolled threaded steel bar 9 is passed through the PVC pipe 5. The diameter of the second precision-rolled threaded steel bar 9 is 25mm. The bottom of the second precision-rolled threaded steel bar 9 is threadedly connected to a first support 10 that abuts against the bottom of the pile cap 3. The top of the second precision-rolled threaded steel bar 9 is threadedly connected to a second support 11 that abuts against the top of the second steel pads 8. The double-I-beam 6 is fixed to the pile cap 3 by the second precision-rolled threaded steel bar 9, the first support 10, and the second support 11.

[0044] Step 4: Hoisting and installing berthing components 1;

[0045] Using a floating crane, the mooring component 1 is slowly moved from a lying position to an upright position on the deck. After hoisting the mooring component 1, it is slowly moved closer to the installation position. Four ropes are set on the top of the mooring component 1, and the tension of the ropes is controlled by a dedicated person to prevent the mooring component 1 from twisting during the hoisting process. When the height of the mooring component 1 is consistent with the installation elevation, the floating crane is moved horizontally to push the mooring component 1 into place.

[0046] After the berthing component 1 is hoisted into place, its elevation, front edge position, and the width of the gap between adjacent blocks are measured and verified. Once the requirements are met, the first precision-rolled threaded steel bar 2 pre-embedded in the berthing component 1 is extended using connector 12. A third steel pad 13 corresponding to the first precision-rolled threaded steel bar 2 is placed on the top of the double-I-beam 6. The top of the extended first precision-rolled threaded steel bar 2 passes through the third steel pad 13 and is threadedly connected to a third support 14 that abuts against the top of the third steel pad 13. The berthing component 1 is fixed to the double-I-beam 6 by the first precision-rolled threaded steel bar 2 and the third support 14. The hoisting ropes of the floating crane are loosened, realizing the conversion of the load-bearing structure of the berthing component 1. Connector 12 is located above and adjacent to the pile cap 3, which facilitates the subsequent disassembly of the extended first precision-rolled threaded steel bar 2. The pre-embedded first precision-rolled threaded steel bar 2 protrudes only slightly from the berthing component 1, eliminating the need for subsequent cutting and processing, thus reducing construction steps.

[0047] Step 5: Limit and fix the berthing component 1;

[0048] After verifying that the position, elevation, and verticality of the berthing component 1 are correct, two sets of brackets 15 are installed at the bottom of the berthing component 1, and reinforcing steel supports 16 are installed on both sides of each bracket 15. I-beam connecting beams 17 are installed at both ends of the top of the double-I-beam 6. The reinforcing steel supports 16 on the same side are connected to the I-beam connecting beams 17 to ensure that the berthing component 1 is stable and does not sway under the action of wind and waves.

[0049] Step Six: Pour concrete at the joint between berthing component 1 and pile cap 3;

[0050] After the berthing component 1 is installed and fixed, the extended steel bars 18 at the joint between the berthing component 1 and the pile cap 3 are tied and installed, and the sealing template is installed. Finally, the concrete at the joint is poured, and the double-jointed I-beam 6, the reinforcing steel support 16, and the I-beam connecting beam 17 are removed to complete the installation of the berthing component 1.

[0051] After the construction of this invention was completed, on-site testing showed that no cracking occurred in the concrete at the joint between the pile cap 3 and the wave barrier.

[0052] This invention employs a process for installing suspended plate-type berthing components, resulting in high construction efficiency and enabling the installation of four components per day. The use of double-jointed I-beams 6, fixed to pile caps 3 with precision-rolled threaded steel, effectively solves the support stress problem during the installation of plate-type berthing components. Furthermore, this support structure is easy to install and dismantle, facilitating reuse. A bracket 15 is installed at the bottom of the berthing component 1, with reinforcing steel supports 16 arranged on both sides of the bracket, effectively addressing the issue of swaying and poor stability of the berthing component 1 under wind and waves. Only two first precision-rolled threaded steel bars 2 need to be pre-embedded on each berthing component 1, eliminating the need for a large number of additional steel sections, saving materials and reducing construction costs. Moreover, the first precision-rolled threaded steel bars 2 can be extended via connectors 12, and the protruding threaded steel bars on the surface of the berthing component 1 are easy to disassemble and reuse after installation.

[0053] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0054] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0055] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0056] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any improvements made using the inventive concept and technical solution of the present invention, or direct application to other occasions without modification, are all within the protection scope of the present invention.

Claims

1. A process for installing plate-type berthing components, characterized in that, Includes the following steps: Step 1: Prefabricate berthing components (1); Each berthing component (1) is prefabricated with a first precision-rolled threaded steel bar (2) embedded at the top of both ends; Step 2: Cast-in-place pile cap (3); Pile caps (3) are poured on top of pile foundation (4). When pouring pile caps (3), the connection between the mooring component (1) and pile caps (3) is not poured temporarily, and PVC pipes (5) are pre-embedded at both ends of each pile cap (3). Step 3: Install double-span I-beams (6); The double-section I-beam (6) is made of several sections of double-section I-beam welded together. Every 50cm, a 1cm thick steel plate is used for reinforcement welding to ensure that the double-section I-beam (6) has a solid structure. First steel pads (7) are placed at both ends of the top of the pile cap (3). The double-I-beam (6) is hoisted onto the first steel pads (7). Second steel pads (8) are placed at both ends of the top of the double-I-beam (6). The gaps between the first steel pads (7), the second steel pads (8), and the double-I-beam (6) correspond to the PVC pipe (5) of the pile cap (3). A second precision-rolled threaded steel bar (9) is passed through the PVC pipe (5). The bottom of the second precision-rolled threaded steel bar (9) is threaded with a first support (10) that abuts against the bottom of the pile cap (3). The top of the second precision-rolled threaded steel bar (9) is threaded with a second support (11) that abuts against the top of the second steel pad (8). The double-I-beam (6) is fixed to the pile cap (3) by the second precision-rolled threaded steel bar (9), the first support (10), and the second support (11). Step 4: Hoisting and installing the berthing components (1); Using a floating crane, the mooring component (1) is slowly moved from a lying position to an upright position on the deck. After hoisting the mooring component (1), it is slowly moved closer to the installation position. Four ropes are set on the top of the mooring component (1), and the tension of the ropes is controlled by a special person to prevent the mooring component (1) from twisting during the hoisting process. When the height of the mooring component (1) is consistent with the installation elevation, the floating crane is moved horizontally to push the mooring component (1) into place. After the berthing component (1) is hoisted into place, the elevation, front line position and adjacent block joint width of the berthing component (1) are measured and verified. After the requirements are met, the first fine-rolled threaded steel (2) pre-embedded in the berthing component (1) is extended by the connector (12). The third steel pad (13) corresponding to the first fine-rolled threaded steel (2) is placed on the top of the double-jointed I-beam (6). The extended first fine-rolled threaded steel (2) passes through the third steel pad (13) and is threadedly connected to the third support (14) that abuts against the top of the third steel pad (13). The berthing component (1) is fixed on the double-jointed I-beam (6) by the first fine-rolled threaded steel (2) and the third support (14). The hoisting rope of the floating crane is loosened to realize the conversion of the force structure of the berthing component (1). Step 5: Limit and fix the berthing component (1); After verifying that the position, elevation, and verticality of the berthing component (1) are correct, two sets of brackets (15) are installed at the bottom of the berthing component (1), and reinforcing steel supports (16) are installed on both sides of each bracket (15). I-beam connecting beams (17) are installed at both ends of the top of the double-beam (6). The reinforcing steel supports (16) on the same side are connected to the I-beam connecting beams (17) to ensure that the berthing component (1) is stable and does not sway under the action of wind and waves. Step 6: Pour concrete at the joint between the berthing component (1) and the pile cap (3); After the berthing component (1) is installed and fixed, the extended steel bars (18) at the joint of the berthing component (1) and the pile cap (3) are tied and installed, and the sealing template is installed. Finally, the concrete at the joint is poured, and the double-jointed I-beam (6), the reinforcing steel support (16), and the I-beam connecting beam (17) are removed to complete the installation of the berthing component (1).

2. The installation process of a plate-type berthing component according to claim 1, characterized in that, The first fine-rolled threaded steel bar (2) is located on the center line of gravity of the berthing component (1), and the connector (12) is located above the pile cap (3).

3. The installation process for a plate-type berthing component according to claim 1, characterized in that, The diameter of the PVC pipe (5) is 50mm.

4. The installation process of a plate-type berthing component according to claim 1, characterized in that, The diameter of the first fine-rolled threaded steel (2) and the second fine-rolled threaded steel (9) is 25mm.

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