Hoisting and positioning method for deck support structure

Abstract

The present invention relates to the technical field of ships, and particularly to a hoisting and positioning method for a deck support structure, which comprises the following steps: cutting the deck and the panel, and scribing a first positioning cross line on the deck and a second positioning cross line on the panel; the intersection point of the first positioning cross line, the intersection point of the second positioning cross line and the support T row are on the same vertical line; scribing a first positioning detection line for the upper structure column and a second positioning detection line for the lower structure column; hoisting the upper structure column to the upper surface of the deck and placing it in the area surrounded by the first positioning detection line; hoisting the lower structure column to the upper surface of the deck and placing it in the area surrounded by the second positioning detection line. The present invention shortens the construction period and improves the hoisting efficiency on the premise of ensuring the installation accuracy.

Description

Technical Field

[0001] The present invention relates to the technical field of ships, and particularly relates to a hoisting and positioning method for a deck support structure. Background Art

[0002] During the construction of PCTC ships, structural columns and supporting T-bars are widely distributed on the garage deck, and the supporting T-bars and the panels at the lower ends of the supporting T-bars strengthen the support of the deck. Since the structural columns are the main supporting members and are subjected to great forces, higher installation accuracy requirements are also imposed. Currently, the installation of structural columns is more based on positioning and hoisting after precision measurement. To ensure the construction accuracy, the structural columns and the supporting T-bars are on the same vertical line, and higher requirements for measurement accuracy are also imposed, resulting in a long construction period and seriously affecting the hoisting efficiency.

[0003] Therefore, a hoisting and positioning method for a deck support structure is needed to solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to provide a hoisting and positioning method for a deck support structure, which can shorten the construction period and improve the hoisting efficiency on the premise of ensuring the installation accuracy.

[0005] To achieve this purpose, the present invention adopts the following technical solutions:

[0006] The hoisting and positioning method for a deck support structure includes the following steps:

[0007] S1. Cut the deck and the panel, and draw a first positioning cross line on the deck and a second positioning cross line on the panel;

[0008] S2. Fix and install the supporting T-bar between the deck and the panel according to the first positioning cross line and the second positioning cross line, so that the deck and the panel form a deck section, and the intersection points of the first positioning cross line, the intersection points of the second positioning cross line and the supporting T-bar are on the same vertical line;

[0009] S3. Project the upper structural column welded on the upper surface of the deck on the upper surface of the deck according to the first positioning cross line, and draw a first positioning detection line for the upper structural column by offsetting a set distance outward according to the projection; project the lower structural column welded on the lower end surface of the panel on the lower surface of the panel according to the second positioning cross line, and draw a second positioning detection line for the lower structural column by offsetting a set distance outward according to the projection;

[0010] S4. Lift the upper structural support column to the upper surface of the deck and place it within the area enclosed by the first positioning detection line. The upper structural support column is at a set distance from the first positioning detection line, thus determining the lifting position of the upper structural support column. Lift the lower structural support column to the upper surface of the deck and place it within the area enclosed by the second positioning detection line. The lower structural support column is at a set distance from the second positioning detection line, thus determining the lifting position of the lower structural support column.

[0011] Further, in step S1, a numerical control device is used to cut the deck and the panel.

[0012] Further, in step S1, the numerical control device can draw the first positioning cross line on the deck and the second positioning cross line on the panel according to the processing instructions.

[0013] Further, in step S2, measure the first coordinate of the intersection point of the first positioning cross line on the upper surface of the deck, and draw a third positioning cross line opposite to the first positioning cross line on the lower surface of the deck according to the first coordinate. Project the support T row welded to the lower end surface of the deck on the lower surface of the deck according to the third positioning cross line, and offset it outward by a set distance according to the projection to draw the third positioning detection line of the support T row.

[0014] Further, in step S2, lift the support T row to the lower surface of the deck and place it within the area enclosed by the third positioning detection line. The support T row is at a set distance from the third positioning detection line, thus determining the lifting position of the support T row.

[0015] Further, in step S2, measure the second coordinate of the intersection point of the second positioning cross line on the lower surface of the panel, and draw a fourth positioning cross line opposite to the second positioning cross line on the upper surface of the panel according to the second coordinate. Project the support T row welded to the upper surface of the panel on the upper surface of the panel according to the fourth positioning cross line, and offset it outward by a set distance according to the projection to draw the fourth positioning detection line of the support T row.

[0016] Further, in step S2, lift the support T row to the upper surface of the panel and place it within the area enclosed by the fourth positioning detection line. The support T row is at a set distance from the fourth positioning detection line, thus determining the lifting position of the support T row.

[0017] Further, use a center punch to draw the fourth positioning detection line.

[0018] Further, in the step S3, a center punch is used to mark the first positioning detection line and the second positioning detection line.

[0019] Further, in the step S4, a hoisting device is used to hoist the upper structural pillar and the lower structural pillar.

[0020] Advantages of the present invention:

[0021] A hoisting and positioning method for a deck support structure provided by the present invention respectively marks a first positioning cross line and a second positioning cross line on the deck and the panel, and installs a support T row according to the first positioning cross line and the second positioning cross line. So that the intersection point of the first positioning cross line, the intersection point of the second positioning cross line and the support T row are on the same vertical line; then a first positioning detection line is marked according to the first positioning cross line, a second positioning detection line is marked according to the second positioning cross line, the upper structural pillar is installed according to the first positioning monitoring line, and the lower structural pillar is installed by using the second positioning monitoring line. Since both the upper structural pillar and the support T row are positioned by the first positioning cross line, and both the lower structural pillar and the support T row are positioned by the second positioning cross line, the positioning accuracy can be guaranteed. On the premise of ensuring the installation accuracy, the installation of the upper structural pillar and the installation of the lower structural pillar are guided by the first positioning detection line and the second positioning detection line, which is convenient for quickly completing the hoisting and positioning work, thereby shortening the construction period and improving the hoisting efficiency. Description of the Drawings

[0022] Figure 1 is a schematic diagram of a deck support structure in a hoisting and positioning method for a deck support structure of the present invention.

[0023] In the figure:

[0024] 1. Deck; 2. Support T row; 3. Panel; 4. Upper structural pillar; 5. Lower structural pillar. Detailed Embodiments

[0025] The technical solutions of the present invention will be further described below in conjunction with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present invention, rather than limiting the present invention. Additionally, it should be noted that for the sake of description, only parts related to the present invention are shown in the drawings, not all of them.

[0026] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it may be a fixed connection or a detachable connection; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] In the present invention, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over", and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "beneath", and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0028] When constructing the support structure of the deck, in order to shorten the construction period and improve the hoisting efficiency while ensuring the installation accuracy, as Figure 1 shown, the present invention provides a hoisting and positioning method for the support structure of the deck. The hoisting and positioning method for the support structure of the deck includes the following steps:

[0029] S1. Cut the deck 1 and the panel 3, and draw a first positioning cross line on the deck 1 and a second positioning cross line on the panel 3;

[0030] S2. Fix and install the support T row 2 between the deck 1 and the panel 3 according to the first positioning cross line and the second positioning cross line, so that the deck 1 and the panel 3 form a deck 1 segment, and the intersection points of the first positioning cross line, the intersection points of the second positioning cross line, and the support T row 2 are on the same vertical line;

[0031] S3. Project the upper structure support column 4 welded on the upper surface of the deck 1 according to the first positioning cross line on the upper surface of the deck 1, and draw a first positioning detection line for the upper structure support column 4 by offsetting a set distance outward according to the projection. Project the lower structure support column 5 welded on the lower end surface of the panel 3 according to the second positioning cross line on the lower surface of the panel 3, and draw a second positioning detection line for the lower structure support column 5 by offsetting a set distance outward according to the projection;

[0032] S4. Lift the upper structural support column 4 to the upper surface of the deck 1 and place it within the area enclosed by the first positioning detection line. The upper structural support column 4 is at a set distance from the first positioning detection line, so the lifting position of the upper structural support column 4 is determined. Lift the lower structural support column 5 to the upper surface of the deck 1 and place it within the area enclosed by the second positioning detection line. The lower structural support column 5 is at a set distance from the second positioning detection line, so the lifting position of the lower structural support column 5 is determined.

[0033] Since both the upper structural support column 4 and the support T row 2 are positioned using the first positioning cross line, and both the lower structural support column 5 and the support T row 2 are positioned using the second positioning cross line, the positioning accuracy can be guaranteed. On the premise of ensuring the installation accuracy, the first positioning detection line and the second positioning detection line are used to guide the installation of the upper structural support column 4 and the lower structural support column 5, which is convenient for quickly completing the lifting and positioning work, thus shortening the construction period and improving the lifting efficiency.

[0034] Furthermore, in this application, a segmented construction method is adopted. First, the deck 1, the support T row 2, and the panel 3 are assembled, and then the upper structural support column 4 and the lower structural support column 5 are installed, thereby reducing the difficulty of precision control and facilitating assembly.

[0035] Furthermore, in step S1, a numerical control device is used to cut the deck 1 and the panel 3. Using a numerical control device can ensure that the cutting accuracy meets the requirements, avoid errors caused by manual processing, and at the same time reduce the labor intensity of workers.

[0036] Furthermore, in step S1, the numerical control device can draw the first positioning cross line on the deck 1 and the second positioning cross line on the panel 3 according to the processing instructions. Using the numerical control device to spray powder and draw lines can ensure the consistency of cutting and processing and the drawing of the first positioning line and the second positioning line, thereby improving the accuracy of drawing the first positioning line and the second positioning line.

[0037] Furthermore, in step S2, measure the first coordinate of the intersection point of the first positioning cross line on the upper surface of the deck 1, and draw the third positioning cross line opposite to the first positioning cross line on the lower surface of the deck 1 according to the first coordinate. Project the support T row 2 welded to the lower end surface of the deck 1 on the lower surface of the deck 1 according to the third positioning cross line, and offset a set distance outward according to the projection to draw the third positioning detection line of the support T row 2. Through the above method, the first positioning cross line is transferred to the lower surface of the deck 1, ensuring the consistency of the installation positioning of the support T row 2 and the first positioning cross line, and ensuring the consistency of the installation of the support T row 2 and the upper structural support column 4, thereby ensuring the installation accuracy. Moreover, using the third positioning detection line to guide the installation and positioning of the support T row 2 can improve the lifting efficiency.

[0038] Furthermore, in step S2, the support T row 2 is hoisted to the lower surface of the deck 1 and placed within the area enclosed by the third positioning detection line. The support T row 2 is at a set distance from the third positioning detection line, thus determining the hoisting position of the support T row 2. In this way, it is possible to guide the rapid hoisting of the support T row 2 into place, and through the verification of the third positioning detection line, the installation accuracy can be ensured.

[0039] Furthermore, in step S2, measure the second coordinate of the intersection point of the second positioning crosshair on the lower surface of the panel 3, and based on the second coordinate, draw a fourth positioning crosshair on the upper surface of the panel 3 that is opposite to the second positioning crosshair. Project the support T row 2 welded to the upper surface of the panel 3 on the upper surface of the panel 3 according to the fourth positioning crosshair, and offset it outward by a set distance to mark the fourth positioning detection line of the support T row 2. In this way, the second positioning crosshair is transferred to the upper surface of the panel 3, ensuring the consistency between the installation positioning of the support T row 2 and the second positioning crosshair, and the consistency between the support T row 2 and the installation of the lower structural pillar 5, thereby ensuring the installation accuracy. Moreover, using the fourth positioning detection line to guide the installation and positioning of the support T row 2 can improve the hoisting efficiency.

[0040] Furthermore, in step S2, the support T row 2 is hoisted to the upper surface of the panel 3 and placed within the area enclosed by the fourth positioning detection line. The support T row 2 is at a set distance from the fourth positioning detection line, thus determining the hoisting position of the support T row 2. In this way, it is possible to guide the rapid hoisting of the support T row 2 into place, and through the verification of the fourth positioning detection line, the installation accuracy can be ensured.

[0041] Furthermore, use a center punch to mark the third positioning detection line and the fourth positioning detection line. By using the third positioning detection line and the fourth positioning detection line marked with a center punch, it is convenient for observation. Moreover, even when paint is sprayed on the panel 3 and the deck 1, the lines formed by the small indentations marked with a center punch can still be observed, thus facilitating the observation of whether the installation of the support T row 2 is in place.

[0042] Similarly, in step S3, use a center punch to mark the first positioning detection line and the second positioning detection line. By using the first positioning detection line and the second positioning detection line marked with a center punch, it is convenient for observation. Moreover, even when paint is sprayed on the panel 3 and the deck 1, the lines formed by the small indentations marked with a center punch can still be observed, thus facilitating the observation of whether the installation of the upper structural pillar 4 and the lower structural pillar 5 is in place.

[0043] Furthermore, in step S4, use a hoisting device to lift and transport the upper structural pillar 4 and the lower structural pillar 5. By using a hoisting device, it is convenient to lift and install the upper structural pillar 4, the lower structural pillar 5, and the support T row 2.

[0044] Obviously, the above embodiments of the present invention are merely examples given to clearly illustrate the present invention, rather than limitations on the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or alterations can be made based on the above description. It is not necessary and impossible to enumerate all implementation manners here. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the claims of the present invention.

Claims

1. Hoisting and positioning method for deck support structure, Characterized in that, It includes the following steps: S1. Cut the deck (1) and the panel (3), and draw a first positioning cross line on the deck (1), and draw a second positioning cross line on the panel (3); S2. Fix and install the support T row (2) between the deck (1) and the panel (3) according to the first positioning cross line and the second positioning cross line, so that the deck (1) and the panel (3) form a deck section, and the intersection of the first positioning cross line, the intersection of the second positioning cross line and the support T row (2) are on the same vertical line; S3. Project the upper structure pillar (4) welded on the upper surface of the deck (1) on the upper surface of the deck (1) according to the first positioning cross line, and offset a set distance outward according to the projection, and draw the first positioning detection line of the upper structure pillar (4). Project the lower structure pillar (5) welded on the lower end surface of the panel (3) on the lower surface of the panel (3) according to the second positioning cross line, and offset a set distance outward according to the projection, and draw the second positioning detection line of the lower structure pillar (5); S4. Hoist the upper structure pillar (4) to the upper surface of the deck (1) and place it in the area surrounded by the first positioning detection line. The upper structure pillar (4) is at a set distance from the first positioning detection line, then the hoisting position of the upper structure pillar (4) is determined; Hoist the lower structure pillar (5) to the upper surface of the deck (1) and place it in the area surrounded by the second positioning detection line. The lower structure pillar (5) is at a set distance from the second positioning detection line, then the hoisting position of the lower structure pillar (5) is determined.

2. The hoisting and positioning method for deck support structure according to claim 1, Characterized in that, In step S1, a numerical control device is used to cut the deck (1) and the panel (3).

3. The hoisting and positioning method for deck support structure according to claim 2, Characterized in that, In step S1, the numerical control device can draw the first positioning cross line on the deck (1) and the second positioning cross line on the panel (3) according to the processing instructions.

4. The hoisting and positioning method for deck support structure according to claim 1, Characterized in that, In step S2, measure the first coordinate of the intersection of the first positioning cross line on the upper surface of the deck (1), and draw a third positioning cross line opposite to the first positioning cross line on the lower surface of the deck (1) according to the first coordinate. Project the support T row (2) welded on the lower end surface of the deck (1) on the lower surface of the deck (1) according to the third positioning cross line, and offset a set distance outward according to the projection, and draw the third positioning detection line of the support T row (2).

5. The hoisting and positioning method for deck support structure according to claim 4, Characterized in that, In the step S2, the support T row (2) is hoisted to the lower surface of the deck (1) and placed within the area enclosed by the third positioning detection line. The support T row (2) is at a set distance from the third positioning detection line, and this is the hoisting position of the support T row (2).

6. The hoisting and positioning method of the deck support structure according to claim 1, characterized in that, in the step S2, measure the second coordinate of the intersection point of the second positioning cross line on the lower surface of the panel (3), and draw a fourth positioning cross line opposite to the second positioning cross line on the upper surface of the panel (3) according to the second coordinate. Project the support T row (2) welded on the upper surface of the panel (3) on the upper surface of the panel (3) according to the fourth positioning cross line, and offset it outward by a set distance according to the projection to delimit the fourth positioning detection line of the support T row (2).

7. The hoisting and positioning method of the deck support structure according to claim 6, characterized in that, in the step S2, the support T row (2) is hoisted to the upper surface of the panel (3) and placed within the area enclosed by the fourth positioning detection line. The support T row (2) is at a set distance from the fourth positioning detection line, and this is the hoisting position of the support T row (2).

8. The hoisting and positioning method of the deck support structure according to claim 6, characterized in that, use a center punch to delimit the fourth positioning detection line.

9. The hoisting and positioning method of the deck support structure according to claim 1, characterized in that, in the step S3, use a center punch to delimit the first positioning detection line and the second positioning detection line.

10. The hoisting and positioning method of the deck support structure according to claim 1, characterized in that, in the step S4, use a hoisting device to hoist the upper structural pillar (4) and the lower structural pillar (5).

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