A method for positioning a full-width upper building section and a full-width upper building section

Abstract

The application relates to a method for positioning a full-width upper building section and the full-width upper building section, the method divides the full-width upper building section into side sections and a middle section, the side sections are located on the two sides of the middle section; when the sections are assembled, the side section on one side is hoisted and positioned on a site, then a center line is drawn on the site based on the side section, then the side section on the other side is hoisted and positioned based on the hoisted and positioned side section and the center line; finally, the middle section is hoisted and positioned between the side sections on the two sides. When the method is used for positioning the full-width upper building section, the traditional method of first drawing a line and then positioning is changed, the positioning is carried out based on the sections, the difficulty of the section positioning is reduced, and the efficiency and the accuracy of the section positioning are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of shipbuilding, in particular to a positioning method for full-width upper built section assembly and full-width upper built section. BACKGROUND

[0002] In the process of full-width upper built section assembly, the single section hoisting and placing adjustment takes a long time, and the positioning adjustment according to the grid line takes a long time and has relatively large cumulative error. In order to improve the hoisting efficiency and reduce the cumulative error, the key is to improve the positioning method.

[0003] At present, the full-width upper built section assembly is mainly based on the drawing to draw the grid line in advance, and each section is placed and positioned according to the grid line. The positioning adjustment takes a long time, and the deviation of each section relative to the grid line requires high skills of the site workers, which leads to the increase of construction cost and construction period. SUMMARY

[0004] In order to solve the above technical problems, the present application provides a positioning method for full-width upper built section assembly, which reduces the difficulty of assembly positioning, improves the efficiency, and reduces the error of assembly positioning.

[0005] The technical purpose of the present application is realized by the following technical scheme:

[0006] A positioning method for full-width upper built section assembly and full-width upper built section positioned according to the method, the method divides the full-width upper built section into side sections and middle sections, the side sections are located on both sides of the middle sections; during assembly, the side section on one side is hoisted and positioned on the site first, then the center line is drawn on the site based on the side section, and then the side section on the other side is hoisted and positioned based on the hoisted and positioned side section and the center line; finally, the middle section is hoisted and positioned between the side sections on both sides.

[0007] Further, the side section includes a bow section, a middle section and a stern section, the bow section, the middle section and the stern section are respectively built, then the middle section assembly positioning is performed first, and then the bow section and the stern section are positioned based on the middle section.

[0008] Further, the bow section, the middle section and the stern section are respectively drawn a section reference line at the same distance from the end before assembly positioning, and the length of the bow section and the stern section is determined by the length between the section reference lines.

[0009] Further, after the middle section is hoisted, the levelness of the four corners of the middle section is measured, the levelness of the four corners of the middle section is adjusted to the design requirement, and the levelness of the adjacent bow section and stern section is determined based on the average levelness of the four corners of the middle section.

[0010] Further, longitudinal wall chines are arranged on the bow section, the middle section and the stern section, and the theoretical values of the longitudinal wall chines from the center line are the same.

[0011] Further, after the positioning of the one side of the hull section assembly is completed, the center line is drawn on the site based on the longitudinal wall chines on the bow section and the stern section of the hull section assembly.

[0012] Further, when the middle section assembly is positioned, the middle section is positioned based on the drawn center line, the section reference line on the hull section and the height reference.

[0013] Compared with the prior art, the beneficial effects of the present application are that the present application changes the traditional assembly positioning mode of reassembling the grid line, and the assembly positioning and the grid line drawing of the remaining sections are based on the middle section of the hull section, which has the following advantages: first, the grid line does not need to be drawn in advance, which reduces the positioning adjustment difficulty and saves the hoisting time; second, compared with the pre-drawn grid line, the cumulative error is smaller and the precision control is more accurate by positioning based on the section itself as a reference; third, the method of the present application is simpler to operate and the on-site construction is simple and convenient. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is the left side hull section assembly positioning diagram in the present application.

[0015] Figure 2 is the center line drawing diagram in the present application.

[0016] Figure 3 is the right side hull section assembly positioning diagram in the present application.

[0017] Figure 4 is the middle section assembly positioning diagram in the present application.

[0018] In the figure, 1, BD16P section; 2, BD17P section; 3, BD18P section; 4, BD16S section; 5, BD17S section; 6, BD18S section; 7, BD34C section; 8, BD35C section; 9, BD36C section; 10, 150 reference line; 11, center line; 12, longitudinal wall chine; 13, section center line. DETAILED DESCRIPTION

[0019] The technical solutions of the present application will be further described below in combination with specific embodiments:

[0020] The embodiment provides a full-width upper building section, which comprises a side section and a middle section, the side section comprises a left side section and a right side section, the left side section comprises a BD16P section 1, a BD17P section 2 and a BD18P section 3, one end of the BD16P section 1 is close to a bow direction, and one end of the BD18P section 3 is close to a stern direction; the right side section comprises a BD16S section 4, a BD17S section 5 and a BD18S section 6, one end of the BD16S section 3 is close to the bow direction, and one end of the BD18S section 6 is close to the stern direction.

[0021] The embodiment further provides a method for positioning the full-width upper building section,

[0022] Before general assembly, 150 reference lines 10 are drawn at both bow and stern ends of the BD16P section 1, the BD17P section 2, the BD18P section 3, the BD16S section 4, the BD17S section 5 and the BD18S section 6, the 150 reference lines 10 are 150 mm away from the end of each section; longitudinal wall notches 12 are further arranged on the BD16P section 1, the BD17P section 2, the BD18P section 3, the BD16S section 4, the BD17S section 5 and the BD18S section 6 close to the bow and stern ends, and the theoretical distance of the longitudinal wall notches 12 from the center line is 7000 mm.

[0023] During general assembly, as shown in the figure, Figure 1 the BD17P section 2 is hoisted to a general assembly site by using a gantry crane, the levelness of four corners of the BD17S section 2 is measured by using a total station, the position and angle of the BD17P section 2 are adjusted so that the levelness of four corners of the BD17P section 2 meets the design requirement, and supports are added to the four corners of the BD17P section 2 for fixation after adjustment is completed, so that the levelness is prevented from changing due to collision with other sections during general assembly.

[0024] The BD16P section 1 is hoisted to the general assembly site by using the gantry crane, and the levelness of the BD16P section 1 is adjusted based on the average levelness of four corners of the BD17P section 2;

[0025] After the levelness adjustment of the BD16P segment 1 is completed, the straightness of the longitudinal wall gusset at both ends of the BD16P segment 1 and the longitudinal wall gusset at both ends of the BD17P segment 2 is adjusted with the longitudinal wall gusset at both ends of the BD17P segment 2 as the width reference, so as to ensure that the longitudinal wall gusset at both ends of the BD16P segment 1 and the longitudinal wall gusset at both ends of the BD17P segment 2 are on a straight line. After the straightness adjustment is completed, the length of the bow segment and the stern segment is determined according to the 150 reference line 10. Specifically, the distance between the 150 reference line 10 at the bow end of the BD16P segment 1 and the 150 reference line 10 at the bow end of the BD17P segment 2 is 11500mm, and if the length exceeds 11500mm, the bow end of the BD16P segment 1 is cut and corrected; the BD16P segment 1 and the BD17P segment 3 are constrained and welded.

[0026] The BD18P segment 3 is positioned in the same way as the positioning of the BD16P segment 1. The distance between the 150 reference line 10 at the bow end of the BD17P segment 2 and the 150 reference line 10 at the bow end of the BD18P segment 3 is 11500mm, and if the distance exceeds 11500mm, the bow end of the BD18P segment 3 is cut and corrected.

[0027] After the positioning of the left side segment is completed, the longitudinal wall gusset at the stern end of the BD18P segment 3 and the longitudinal wall gusset at the bow end of the BD16P segment 1 are taken as the reference, and the two points 7000mm away from the longitudinal wall gusset are measured by means of the total station instrument, and the center line 11 is determined through the two points, and the center line 11 is drawn, as shown in Figure 2 The height reference of the average levelness of the four corners of the middle segment BD17P segment is drawn on the channel steel on one side of the left side segment.

[0028] As shown in Figure 3 , the distance between the longitudinal wall gusset of the BD17S segment 5 and the center line is adjusted to meet the requirement of 7000mm according to the drawn center line, the 150 reference line 10 of the BD17S segment 5 is aligned with the 150 reference line 10 of the BD17P segment 2, and the levelness of the four corners of the BD17S segment 5 is adjusted to be consistent with the height reference; after the adjustment of the BD17S segment 5 is completed, in order to avoid collision and offset of the BD17S segment, supports can be added to the four corners of the BD17S segment 5.

[0029] BD16S segment 4 is adjusted according to the marked centerline so that the distance between its longitudinal wall punch and the centerline 11 is 7000mm; the levelness of the four corners of BD16S segment 4 is adjusted according to the height reference; the 150 reference line 10 of BD16S segment 4 is aligned with the 150 reference line 10 on BD16P segment 1, and excess material is removed. If there is no excess material, constraint welding is performed between BD16S segment 4 and BD17S segment 5; BD18S segment 6 is positioned in the same way as BD16S segment 4.

[0030] Finally, perform overall group positioning for the intermediate segments, such as... Figure 4 As shown, the intermediate sections include BD34C section 7, BD35C section 8, and BD36C section 9, arranged sequentially along the bow and stern of the ship. Section center lines 13 and perpendicular 150° reference lines are marked on BD34C section 7, BD35C section 8, and BD36C section 9, respectively. During the overall assembly, it is ensured that the section center lines 13 of BD34C section 7, BD35C section 8, and BD36C section 9 remain aligned. Specifically, first, position the BD35C segment 8 in the overall assembly. Level the four corners of the BD35C segment 8 according to the height standard. Align the segment centerline 13 of the BD35C segment 8 with the centerline 11 of the site. Align the 150 baseline of the BD35C segment 8 with the 150 baselines on the BD17P segment 2 and BD17S segment 5 on both sides. Then, perform constraint welding on the BD35C segment 8 and the BD17P segment 2 and BD17S segment 5 on both sides.

[0031] After the overall positioning of BD35C segment 8 is completed, the overall positioning of BD34C segment 7 and BD36C segment 9 will be carried out. The overall positioning method of BD34C segment 7 and BD36C segment 9 is the same. Taking BD34C segment 7 as an example, the levelness of the four corners of BD34C segment 7 will be adjusted according to the height reference. The segment center line 13 of BD34C segment 7 will be aligned with the center line 11 of the site. The 150 reference line of BD34C segment 7 will be aligned with the 150 reference line on BD16S segment 4 and BD16P segment 1. Then, BD34C segment 7 will be constrained and welded to BD16S segment 4, BD16P segment 1 and BD35C segment 8 respectively.

[0032] This embodiment is merely a further explanation of the present invention and is not intended to limit the present invention. Those skilled in the art can make non-inventive modifications to this embodiment as needed after reading this specification, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A method for locating a full-width superstructure assembly, characterized in that, The full-width superstructure is divided into side sections and intermediate sections, with the side sections located on both sides of the intermediate section. During assembly, the side section on one side is hoisted and positioned to the site first. Then, a center line is drawn on the site using the side section as a reference. Next, the side section on the other side is hoisted and positioned using the hoisted and positioned side section and the center line as references. Finally, the intermediate section is hoisted and positioned between the two side sections.

2. The method for positioning a full-width superstructure assembly according to claim 1, characterized in that, The side sections include the bow section, the midship section, and the stern section. After the bow section, midship section, and stern section are constructed separately, the midship section is first positioned as a whole, and then the bow section and stern section are positioned as a whole based on the midship section.

3. The method for positioning a full-width superstructure assembly according to claim 2, characterized in that, Before assembling the bow, midsection, and stern sections, draw segment reference lines at equal distances from their ends. The lengths of the bow and stern sections are determined by the lengths between these reference lines.

4. The method for positioning a full-width superstructure assembly according to claim 3, characterized in that, After the middle section is hoisted, the levelness of the four corners of the middle section is measured and adjusted to the design requirements; the levelness of the adjacent bow and stern sections is determined based on the average levelness of the four corners of the middle section.

5. The method for positioning a full-width superstructure assembly according to claim 4, characterized in that, Longitudinal wall shovels are provided on the bow, midship, and stern sections, with the theoretical distance of the longitudinal wall shovels from the centerline being the same.

6. The method for positioning a full-width superstructure assembly according to claim 5, characterized in that, After the overall positioning of the side section assembly is completed, the center line is drawn on the site using the longitudinal wall sills on the bow and stern sections of the side section as references.

7. The method for positioning a full-width superstructure assembly according to claim 6, characterized in that, When locating the intermediate sections, the intermediate sections are located using the marked centerline, the section reference line on the side sections, and the height reference.

8. A full-width superstructure section, characterized in that, It includes a side section and a middle section, wherein the side section and the middle section are positioned in accordance with the method described in any one of claims 1-7.

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