JPS60248489A - Block construction method - Google Patents

Abstract

PURPOSE:To simply construct a block section by rotatably fitting a side shell rib formed with bolt holes on one end to a top side tank bottom plate block, mounting the top side tank bottom plate block on an upper deck block, and rotating the side shell rib to join them in one body. CONSTITUTION:Multiple upper deck longitudinal rubs 4 and a parallel beam 5 bored with bolt holes on one end are joined to form an upper deck block A using an upper deck 1 as a base. Multiple top side tank bottom plate ribs 8, a beam 5'', and a bracket 6 bored with bolt holes are joined to form a top side tank bottom plate block B using a top side tank bottom plate 2 as a base. A side shell rib 7 bored with bolt holes on both ends is rotatably fitted to the top side tank block B on one end. Next, the top side tank bottom plate block B is mounted on the upper deck block A, the side shell rib 7 is rotated to join them in one body, and a side shell 3 is fitted. Accordingly, the top side tank block can be simply constructed.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a method for constructing blocks during ship construction.

[Conventional technology]

For example, the hull block constituting the top side tank of a bulk carrier has conventionally been constructed with a plurality of upper deck longitudinal ribs 4 in the longitudinal direction and parallel beams in the lateral direction, as shown in the perspective view of FIG. 11 and the 12th front view. RJ-f sister candy gosho r7μ田第1 Top side tank bottom plate with box ribs Consists of a top side tank bottom plate 2 reinforced with ribs 8, a side outer plate 3 reinforced with a plurality of side outer plate ribs 7, etc.

As shown in the side view of FIG. 13, the method for assembling this block is to first assemble the block OA by attaching the upper deck longitudinal ribs 4 and beams 5' to the upper deck 1 as a base, as shown in the side view of FIG. As shown in the figure, the top side tank bottom plate 2 is used as a base and the top side tank bottom plate ribs 8. Attach bracket 6 and beam 5'' and assemble block OB'z.

Next, as shown in the side view of FIG. 15, block OB is installed on top of block OA as a base.At this time, when the contact surfaces a of beams 5' and 5'' are joined, block OA and block In order to secure a regular dimension lf between OB, a positioning jig 9 is temporarily provided and then the block OC is assembled.

Finally, as shown in the side view of FIG. 16, the block OC is attached to the side outer plate 3 as a base, the positioning jig 9 is removed, and the side outer plate rib 7 is attached.

[Problem that the invention seeks to solve]

However, in such a method, (1) A temporary positioning jig 9 is separately required.

(2) As shown in FIG. 15, when installing the positioning jig 9, its upper end position is approximately 6 m above the surface plate, so it is dangerous to work at heights.

(3) There is a problem in that temporary installation of the positioning jig 9 requires many man-hours.

The present invention aims to solve these problems,
To provide a block construction method for a topside tank that does not require a temporary positioning jig, does not involve high-place work for temporary construction, and greatly reduces temporary construction work.

[Means for solving problems]

To this end, in constructing a topside tank block with an upper deck, a side skin plate, and a topside tank bottom plate, the present invention provides a method for constructing a topside tank block using an upper deck as a base, and a plurality of upper deck longitudinal ribs and bolts perpendicular to these and at one end. Upper deck block At by welding together parallel beams with perforated holes
When welding multiple top side tank bottom plate ribs, beams, and parallel brackets each with a bolt hole drilled at one end to the top side tank bottom sheet metal space, weld the side shell plate ribs to the bolt holes of the brackets. By pivoting one of the bolt holes drilled a predetermined distance apart at both ends with a bolt.

A step of making a top side tank bottom plate block B by pivoting a side outer plate rib at one end, and placing the above upper deck block A on a surface plate as a base, and lifting the top side tank bottom plate block B with a crane. , when the bolt holes at the other end of the side shell ribs are bolted to the bolt holes of the beams of the upper deck block A, the beams of the top side tank bottom plate B are connected to the upper deck and the bolts are bolted to the outside of the upper deck. It is characterized by the process of welding the bolts at both ends of the plate ribs.

[Effect]

With the above-described configuration, it is possible to use the side outer plate ribs as a positioning jig to secure the regular dimension 1- at the specified position between the blocks A and B.

〔Example〕

An embodiment of the present invention will be explained with reference to the drawings. Fig. 1 shows the upper deck block. Figure 2 is a side view showing the top side tank bottom plate block, Figure 3 is a side view showing how to position the top side tank bottom plate block in Figure 2 to the upper deck block in Figure 1, Figure 4 is the third
A side view showing how to attach the hull side plating to the block shown in the figure.
FIG. 5 is a sectional view showing the welding procedure for the bolt hole in FIG. 4, FIG. 6 is a front view of FIG. 5, and FIG. 7 is a sectional view showing the welding procedure for the bolt hole, which is different from that in FIG. Figure 8 is the ■X in Figure 7.
9 is a view taken in the direction of the ■ arrow in FIG. 7, and FIG. 10 is a sectional view showing a welding procedure for bolt holes different from that in FIG. 7.

In the above figure, the same symbols as in Figs. 11 to 16 indicate the same members as in the same figure, and 10 positions the outer ends of the upper deck block A and the top side tank bottom plate block B, respectively, at a distance l. In order to use the side outer plate ribs 7 as a positioning jig instead of the positioning jig 9 in the conventional method, the top side tank bottom plate block B
Holes 10' and 10'' drilled in the end of the bracket 6 and one end of the side outer plate rib 7 are overlapped, and a bolt τ is inserted through the holes 10' and 10'' and rotatably supports the side outer plate rib 7f.゛A).

Holes 11 and 11' are drilled in one end of the beam 5' of the upper deck block A and the other end of the side shell plate rib 7, which is pivoted at one end to the bracket 6 of the top side tank bottom plate block B with bolts 10, respectively. Then, when assembling the block by placing the top side tank bottom plate block B'z on top of the upper deck block A, by overlapping these holes and inserting the bolts 12, both blocks can be positioned at a distance l. be.

To assemble the side tank block according to the method of the present invention, first, as shown in FIG. Assemble.

As shown in the side view of FIG. 2, the top side tank bottom plate 2 is used as a base and the top side tank bottom plate ribs 8. The block B is assembled by attaching the bracket 6 and the beam 5#, and fixing the p-side outer plate rib 7 to the bracket 6 with bolts 10.

Next, as shown in FIG. 3, when installing block B' on top of block Ak as a base, block B is lifted by a crane and brought onto block A, and the side outer plate ribs 7 are attached around the bolts 10. Align the hole 11' at the lower end with the hole 11 at one end of the beam 5', insert and fix the bolt 12 there, and then weld the left end of the beam 5' and the beam 5''. Assemble block C.

Finally, as shown in FIG. 71, the block C is attached to the side outer plate 3 as a base.

At this time, the side outer plate ribs 7 are also welded and fixed to the brackets 6 and beams 5.

If the bolts 10 and 12 are to remain after that, cut both ends of the bolts as shown in FIGS. 5 and 6.
Either the cross section is welded all the way around, or, as shown in FIGS. 7 to 9, only the nut part is cut and the cross section and the bolt head are welded all the way around.

Also, when removing bolts 10 and 12.

As shown in FIG. 10, after the bolts 10 and 12 are removed, the gap between the side shell plate rib 7 and the bracket 6 in the hole is sealed and welded.

In this way, rAzea 1 performs full circumference welding and seal welding.
/k J-Magnetic Modification μ Recessed Small Paste 1/r This is to prevent the metal from penetrating and corroding.

In such a method, block B is placed on block A as a base, and the other end of the side skin plate rib 7, whose one end is pivotally supported on block B by bolt 10, is rotated around bolt 10, and other Align the hole 11' drilled at the end with the hole 11 at one end of the beam 5' of block A, and insert the bolt 1 here.
2, the regular dimension l is ensured and the block can be positioned.

According to such a method, the following effects can be achieved.

(1) It is economical because there is no need to separately prepare a temporary positioning jig.

(2) Positioning work is safer because there is no need to work at heights.

(3) Temporary construction work for positioning is greatly reduced.

The above has described an embodiment in which the present invention is applied to a block assembly of a top side tank.

The present invention can also be applied to other similar construction work for blocks for various parts of the ship's body.

〔Effect of the invention〕

In short, according to the present invention, when constructing a topside tank block with an upper deck, a side skin plate, and a topside tank bottom plate, the upper deck is used as a base, and a plurality of upper deck longitudinal ribs are connected orthogonally to these and each The process of making the upper deck block A by welding parallel beams with bolt holes drilled to each other, and the step of making the upper deck block A by welding together parallel beams with bolt holes drilled therein, and forming a plurality of top side tank bottom plate ribs, beams and bolt holes at one end of the top side tank bottom plate metal base, respectively. Welding the drilled parallel brackets
・By pivoting one of the bolt holes drilled at a predetermined distance at both ends of the side shell ribs to the bolt holes of the bracket with bolts, the side shell ribs can be attached to one end. The process of making a top side tank bottom plate block B which is pivoted, and placing the above upper deck block A on a surface plate as a base, lifting it with a crane, and lifting the above side outer plate ribs. When the other end bolt hole is bolted to the bolt hole of the beam of the upper deck block A,
Both the step of welding the beam of the top side tank bottom plate B to the beam of the upper deck block A, and the step of welding the outer plate ribs to the cram side outer plate as a base. The process of welding the bolts at both ends of the block eliminates the need for temporary positioning jigs, making temporary construction work safer and providing a block construction method that greatly reduces the amount of work required. The invention is extremely useful industrially.

[Brief explanation of drawings]

Fig. 1 is a side view showing an embodiment in which the present invention is applied to a top side tank, Fig. 2 is a side view showing a top side tank bottom plate block, and Fig. 3 is a side view showing an embodiment of the present invention applied to a top side tank. Figure 4 is a side view showing how to position the top side tank bottom plate block, Figure 4 is a side view showing how to attach the side shell plate to the block in Figure 3, Figure 5 is a side view showing how to weld the bolt holes in Figure 11. 6 is a front view of FIG. 5, FIG. 7 is a sectional view showing a bolt hole welding procedure different from that in FIG. 5, and FIG. 8 is a view from the ■X arrow in FIG. Fig. 9 is a view in the direction of the ■ arrow in Fig. 7, Fig. 10 is a sectional view showing a bolt hole welding procedure different from that in Fig. 7, Fig. 11 is a perspective view showing a known top side tank, and Fig. 12 is a 13 is a side view showing the upper deck block in Fig. 12, Fig. 14 is a side view showing the top side tank bottom plate block in Fig. 12, and Fig. 15 is a side view showing the upper deck block in Fig. 12. FIG. 16 is a side view showing how to position the upper deck block and the top side tank bottom plate block shown in FIG. 14, and FIG. 16 is a side view showing how to fix the side shell plate ribs to the block shown in FIG. 15. 1. Upper deck, 2. Top side tank bottom plate, 3.
・Side skin, 4. Upper deck longitudinal rib, 5. Beam, 5'
・・Beam, 5″・・Beam, 6・・7+; Left 1, i
L '7-71111 hl cap pasting J) L r+ +
,,, - Side tank bottom plate rib, 9... Position jig, 10... Bolt, 11... Bolt hole, 11'... Bolt hole, 12... Bolt, A... Block A, B... Block B, C...Block C1 Sub-agent Masaaki Tsukamoto Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Figure 9 Figure 1O Figure 11 Figure 12 Figure 13 Figure 14 Figure 16

Claims (1)

[Claims] In order to construct a topside tank block using the upper deck, side outer panels, and topside tank bottom plate, bolt holes were drilled at one end of multiple upper deck longitudinal ribs and perpendicular to them, using the upper deck as a base. The process of making the upper deck block A by welding parallel beams to each other, and the process of making a plurality of top side tank bottom plate ribs, beams, and parallel brackets with bolt holes drilled at one end, respectively, based on the top side tank bottom plate. When welded, one of the bolt holes drilled at both ends of the side skin plate rib at a predetermined distance is pivotally connected to the bolt hole of the bracket with a bolt, thereby pivotally attaching the side skin plate rib to one end. The process of making the top side tank bottom plate block B'z and the above upper deck block A
When the top side tank bottom plate block Bi is lifted by a crane and the other end bolt hole of the side outer plate rib is bolted to the bolt hole of the beam of the upper deck block A, the beam of the top side tank bottom plate B is attached to the upper deck block A. and a step of welding the side shell ribs to the side shell plate as a base, and welding the bolts at both ends of the side shell ribs, respectively. Construction method.