1. A reinforcing method for hoisting a large-opening block is characterized in that the large-opening block comprises a bottom section, a port section and a starboard section, wherein the port section and the starboard section are positioned above the bottom section, and a gap is formed between the port section and the starboard section to form a large-opening structure; the port section and the starboard section are both of multilayer platform structures; the multilayer platform structure comprises a first platform, a second platform and a third platform which are arranged from top to bottom at intervals; the first platform is provided with a hoisting horse for hoisting the large-opening total section; the reinforcing method for hoisting the large-opening total section comprises the following steps:

installing a distance keeping beam for connecting the port subsection and the starboard subsection at the top of the large-opening general section, wherein two ends of the distance keeping beam are respectively welded on a first platform of the port subsection and a first platform of the starboard subsection through first horse plates; the welding requirements are as follows: the upper end of the first horse board is in lap welding with the distance-keeping beam, and the welding height of the lap welding is not less than 250 mm; the lower opening of the first horse board extends out of the distance-keeping beam and is welded with the first platform at an angle, and the extending length is 300-350 mm;

the method comprises the steps that a first vertical support is arranged between a first platform and a second platform which are positioned on the same subsection, a second vertical support is arranged between the second platform and a third platform which are positioned on the same subsection, the first vertical support and the second vertical support are both positioned below a hanging horse, and the first vertical support and the second vertical support which are positioned below the same hanging horse are aligned up and down.

2. A reinforcing method for hoisting a large-opening total section according to claim 1, wherein when a transverse T-shaped section is arranged on the reverse side of a first platform below a hoisting horse, a second horse plate is fillet-welded on the reverse side of a panel of the transverse T-shaped section and the top surface of a second platform respectively, the upper end and the lower end of a first vertical support below the hoisting horse are lap-welded with the two second horse plates respectively, the welding height of the lap-welding is not less than 80mm, the distance between the panel of the transverse T-shaped section on the first platform and the first vertical support is 50 mm-70 mm, and the distance between the first vertical support and the second platform is 50 mm-70 mm; when a transverse bulkhead is arranged on the reverse side of the first platform below the suspended bridge, a second saddle plate attached to the transverse bulkhead is fillet-welded on the first platform and the second platform respectively, the upper end and the lower end of a first vertical support are lap-welded with the two second saddle plates respectively, the welding height of the lap-welding is not less than 80mm, and the distances from the first vertical support to the first platform and the second platform are both 50-70 mm; when the reverse side of a first platform below a hanging horse does not have any strong structure, a reinforcing plate is fillet-welded on the first platform below the hanging horse, a second horse plate is fillet-welded on a second platform below the hanging horse, the upper end of a first vertical support is lap-welded with the reinforcing plate, the lower end of the first vertical support is lap-welded with the second horse plate, the welding height of the lap-welding is not less than 80mm, and the distances from the first vertical support to the first platform and the second platform are both 50 mm-70 mm; when a transverse T-shaped section is arranged on the reverse side of a second platform below the hanging horse, a second horse plate is fillet-welded on the reverse side of a panel of the transverse T-shaped section and the top surface of a third platform respectively, the upper end and the lower end of a second vertical support below the hanging horse are lap-welded with the two second horse plates respectively, the welding height of the lap-welding is not less than 80mm, the distance between the panel of the transverse T-shaped section on the second platform and the second vertical support is 50-70 mm, and the distance between the second vertical support and the third platform is 50-70 mm; when a transverse bulkhead is arranged on the reverse side of the second platform below the suspended bridge, a second saddle plate attached to the transverse bulkhead is fillet-welded on the second platform and the third platform respectively, the upper end and the lower end of a second vertical support are lap-welded with the two second saddle plates respectively, the welding height of the lap-welding is not less than 80mm, and the distances from the second vertical support to the second platform and the third platform are both 50-70 mm; when the reverse side of a second platform below the hanging horse does not have any strong structure, a reinforcing plate is fillet-welded on the second platform below the hanging horse, a second horse plate is fillet-welded on a third platform below the hanging horse, the upper end of a second vertical support is lap-welded with the reinforcing plate, the lower end of the second vertical support is lap-welded with the second horse plate, the welding height of the lap-welding is not less than 80mm, and the distance from the second vertical support to the second platform and the distance from the second vertical support to the third platform are both 50 mm-70 mm.

3. A reinforcing method for hoisting a large-opening total section according to claim 1 or 2, wherein the first vertical support is a U-steel for embracing, and the second vertical support is a U-steel.

Background

As shown in fig. 1, the large-opening block section comprises a bottom section, a port section and a starboard section, wherein the port section and the starboard section are located above the bottom section, and a gap is formed between the port section and the starboard section to form a large-opening structure, so that the large-opening structure is used for hoisting ship equipment after the ship block section is folded up, and hoisting detachable plate sections to close the large-opening structure after the ship equipment is hoisted, so that all hoisting work of ship construction is completed; due to the existence of the large opening structure, the overall rigidity of the large opening total section is poor, and in addition, the self weight of the large opening total section is heavy, so that the port section and the starboard section can be close to the middle to deform during hoisting. The conventional method is to hoist the bottom section, the port section and the starboard section respectively, and although the hoisting deformation of the large-opening total section is reduced, the method needs to hoist repeatedly, so that a large amount of dock resources are occupied, the ship building period is prolonged, the building cost is not reduced, and the rapid building of the ship is realized.

Disclosure of Invention

In view of the defects of the prior art, the invention aims to provide a reinforcing method for hoisting a large-opening total section, which increases the integral rigidity and strength of the large-opening total section, improves the structural safety in the hoisting process while controlling the hoisting deformation and realizes one-time hoisting of the large-opening total section.

In order to achieve the above and other related objects, the present invention provides a method for reinforcing a large-opening block, the large-opening block including a bottom section, a port section and a starboard section, the port section and the starboard section being located above the bottom section, and a gap being provided between the port section and the starboard section to form a large-opening structure; the port section and the starboard section are both of multilayer platform structures; the multilayer platform structure comprises a first platform, a second platform and a third platform which are arranged from top to bottom at intervals; the first platform is provided with a hoisting horse for hoisting the large-opening total section; the reinforcing method for hoisting the large-opening total section comprises the following steps:

installing a distance keeping beam for connecting the port subsection and the starboard subsection at the top of the large-opening general section, wherein two ends of the distance keeping beam are respectively welded on a first platform of the port subsection and a first platform of the starboard subsection through first horse plates; the welding requirements are as follows: the upper end of the first horse board is in lap welding with the distance-keeping beam, and the welding height of the lap welding is not less than 250 mm; the lower opening of the first horse board extends out of the distance-keeping beam and is welded with the first platform at an angle, and the extending length is 300-350 mm;

the method comprises the steps that a first vertical support is arranged between a first platform and a second platform which are positioned on the same subsection, a second vertical support is arranged between the second platform and a third platform which are positioned on the same subsection, the first vertical support and the second vertical support are both positioned below a hanging horse, and the first vertical support and the second vertical support which are positioned below the same hanging horse are aligned up and down.

Preferably, when the transverse T-shaped section is arranged on the reverse side of the first platform below the lifting horse, a second horse plate is fillet-welded on the reverse side of a panel of the transverse T-shaped section and the top surface of the second platform respectively, the upper end and the lower end of a first vertical support below the lifting horse are lap-welded with the two second horse plates respectively, the welding height of the lap-welding is not less than 80mm, the distance between the panel of the transverse T-shaped section on the first platform and the first vertical support is 50-70 mm, and the distance between the first vertical support and the second platform is 50-70 mm; when a transverse bulkhead is arranged on the reverse side of the first platform below the suspended bridge, a second saddle plate attached to the transverse bulkhead is fillet-welded on the first platform and the second platform respectively, the upper end and the lower end of a first vertical support are lap-welded with the two second saddle plates respectively, the welding height of the lap-welding is not less than 80mm, and the distances from the first vertical support to the first platform and the second platform are both 50-70 mm; when the reverse side of a first platform below a hanging horse does not have any strong structure, a reinforcing plate is fillet-welded on the first platform below the hanging horse, a second horse plate is fillet-welded on a second platform below the hanging horse, the upper end of a first vertical support is lap-welded with the reinforcing plate, the lower end of the first vertical support is lap-welded with the second horse plate, the welding height of the lap-welding is not less than 80mm, and the distances from the first vertical support to the first platform and the second platform are both 50 mm-70 mm; when a transverse T-shaped section is arranged on the reverse side of a second platform below the hanging horse, a second horse plate is fillet-welded on the reverse side of a panel of the transverse T-shaped section and the top surface of a third platform respectively, the upper end and the lower end of a second vertical support below the hanging horse are lap-welded with the two second horse plates respectively, the welding height of the lap-welding is not less than 80mm, the distance between the panel of the transverse T-shaped section on the second platform and the second vertical support is 50-70 mm, and the distance between the second vertical support and the third platform is 50-70 mm; when a transverse bulkhead is arranged on the reverse side of the second platform below the suspended bridge, a second saddle plate attached to the transverse bulkhead is fillet-welded on the second platform and the third platform respectively, the upper end and the lower end of a second vertical support are lap-welded with the two second saddle plates respectively, the welding height of the lap-welding is not less than 80mm, and the distance from the second vertical support to the second platform and the third platform is 50-70 mm; when the reverse side of a second platform below the hanging horse has no strong structure, a reinforcing plate is fillet-welded on the second platform below the hanging horse, a second horse plate is fillet-welded on a third platform below the hanging horse, the upper end of a second vertical support is lap-welded with the reinforcing plate, the lower end of the second vertical support is lap-welded with the second horse plate, the welding height of the lap-welding is not less than 80mm, the distance from the second vertical support to the second platform and the third platform is 50 mm-70 mm, the strength of the position of the hanging horse is improved, meanwhile, the later-stage dismantling of the first vertical support and the second vertical support is facilitated, the damage to the large-opening total section during dismantling is avoided,

preferably, the first vertical support is a U-steel for embracing, and the second vertical support is a U-steel for facilitating purchase by a user.

As mentioned above, the reinforcing method for hoisting the large-opening total section provided by the invention has the following beneficial effects:

according to the reinforcing method for hoisting the large-opening block, the distance beam is used for connecting the port subsection and the starboard subsection, so that the problem that the block is poor in integral rigidity and easy to deform due to a large-opening structure is solved; meanwhile, the first vertical support and the second vertical support form a continuous stress plane, so that the pulling force applied to the lifting frame can be quickly and effectively dispersed and transmitted, the lifting deformation of the large-opening main section is controlled, the strength of the structure is increased, the safety of the structure of the large-opening main section in the whole lifting process is ensured, and the large-opening main section can be lifted at one time.

Drawings

FIG. 1 is a cross-sectional view of a large opening block without reinforcement.

Figure 2 is a cross-sectional view of the large opening block arrangement after reinforcement,

fig. 3 is a top view of the port and starboard sections connected by a retaining beam.

Fig. 4 is a schematic view (longitudinal section) of a first vertical support arranged on a transverse T-section.

Figure 5 is a schematic view (longitudinal section) of a first vertical support disposed on a transverse bulkhead.

Description of the reference numerals

Bottom section 01, port section 02, starboard section 03, first platform 04, second platform 05, third platform 06, transverse T-section 07, web 071, face plate 072, transverse bulkhead 08, distance beam 1, first horse plate 21, second horse plate 22, first vertical support 3, second vertical support 4, and reinforcing plate 5.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.

Please refer to fig. 1 to 5. It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.

As shown in fig. 1, the large-opening block comprises a bottom block 01, a port block 02 and a starboard block 03, the weight of the block is about 700t, the port block 02 and the starboard block 03 are positioned above the bottom block 01, and a gap is formed between the port block 02 and the starboard block 03 to form a large-opening structure for hoisting ship equipment after the ship block is completely folded; the port section 02 and the starboard section 03 are both of a multilayer platform structure; the multilayer platform structure comprises a first platform 04, a second platform 05 and a third platform 06 which are arranged from top to bottom at intervals, wherein the first platform 04 is provided with a hoisting horse for hoisting a large-opening total section, the hoisting horse is generally arranged above strong structures such as a bulkhead, a transverse T-shaped section 17 and a longitudinal bone, the number and arrangement scheme of the hoisting horses are comprehensively determined by the weight, the gravity center, the structural form, the parameters of gantry crane equipment and the like of the large-opening total section, and the detailed description is omitted. Because the structure of the large-opening block is in the transverse direction, the weight distribution is uneven, the situation that two ends are heavy and the middle is light exists, and the distance between the port subsection 02 and the starboard subsection 03 is large and no support exists, so that when the large-opening block is integrally hoisted, the situation that the port subsection 02 and the starboard subsection 03 are close to the middle to deform and the middle part of the bottom subsection 01 protrudes downwards to deform can occur, and the requirement of ship construction production cannot be met.

Based on the above, the invention provides a reinforcing method for hoisting a large-opening total section, which comprises the following steps:

as shown in fig. 2 and 3, a plurality of gauge beams 1 for connecting the port section 02 and the starboard section 03 are installed at the top of the large-opening block, and the plurality of gauge beams 1 are arranged at intervals; the two ends of the distance-keeping beam 1 are respectively welded on the first platform 04 of the port subsection 02 and the first platform 04 of the starboard subsection 03 through first horse plates 21, the first horse plates 21 positioned on the front side and the rear side of the distance-keeping beam 1 are oppositely arranged, the first horse plates 21 positioned on the same side of the same end of the distance-keeping beam 1 are arranged at intervals, and the connecting strength of the distance-keeping beam 1 and the main section is ensured; when the first horse plate 21 is welded, the requirements are as follows: the upper end of the first horse plate 21 is in lap welding with the distance-keeping beam 1, and the welding height of the lap welding is not less than 250 mm; first horse board 21 end opening stretches out guarantor distance roof beam 1 to with first platform 04 fillet welding, and first horse board 21 stretch out length and be 300mm ~ 350mm, the root is reserved in the later stage cutting of being convenient for.

It is understood that the gauge beam 1 in the present invention may be a gauge beam with various structures disclosed in the prior art, which is not limited thereto, and the embodiment preferably selects the gauge beam with the application number CN201520352782.5 and the patent name: disclosed in the patent document is a gauge beam for quick loading of a container ship bulkhead.

It can be understood that the height of the first horse plate 21 is not less than 550mm, and the first horse plate 21 with the material and the specification of 8mm is selected to connect the distance beam 1 and the large-opening total section, wherein the length of the first horse plate is 300mm, the height h of the first horse plate is 600mm, and the thickness of the first horse plate is consistent with the total section. In order to recycle the gauge beam 1 and reduce the cost, the length of the lower opening of the first horse plate 21 extending out of the gauge beam 1 is preferably set to be 320mm, and the welding height of lap welding of the first horse plate 21 and the gauge beam 1 is 280 mm. When the distance keeping beam 1 is detached, the distance keeping beam 1 can be detached from the total section only by cutting the extending part of the first horse board 21, when the first horse board 21 is cut, the roots of the first horse board 21 are required to be left on the total section for 5 mm-10 mm, then the first horse board 21 with the roots left on the total section is ground flat, the total section is prevented from being damaged, and the recycling frequency of each distance keeping beam 1 is not higher than three times.

As shown in fig. 2, a first vertical support 3 is arranged between a first platform 04 and a second platform 05 on the same section, a second vertical support 4 is arranged between the second platform 04 and a third platform 05 on the same section, the first vertical support 3 and the second vertical support 4 are both positioned below the hanging horse, and the first vertical support 3 and the second vertical support 4 positioned below the same hanging horse are aligned up and down, so that the first vertical support 3 and the second vertical support 4 form a continuous force-bearing plane which is vertically penetrated, the force transmitted from the hanging horse to the first platform 04 is effectively and rapidly dispersed downwards, and the capability of resisting deformation of the total section is increased.

It can be understood that, in order to facilitate later dismantling of the first vertical support 3 and the second vertical support 4, the first vertical support 3 and the second vertical support 4 are both connected with two platforms adjacent to each other up and down through the second horse board 22. The second horse board 22 is made of the same material as the overall section.

Specifically, as shown in fig. 2 and 4, when a transverse T-shaped section 07 is arranged on the reverse side of a first platform 04 below a hanging horse, a second horse board 22 is fillet-welded on the reverse side of a panel 072 of the transverse T-shaped section 07 and the top surface of a second platform 05 respectively, the upper end and the lower end of a first vertical support 3 below the hanging horse are lap-welded with the two second horse boards 22 respectively, and the welding height h1 of the lap-welding is not less than 80 mm; the distance between the panel 072 of the transverse T-shaped section 07 on the first platform 04 and the first vertical support 3 is 50-70 mm (namely, the clearance height of the second horse board 22 is 50-70 mm), and the distance between the first vertical support 3 and the second platform 05 is not less than 50-70 mm (namely, the clearance height of the second horse board 22 is 50-70 mm); when a transverse bulkhead 08 is arranged on the reverse side of a first platform 04 below the suspended bridge, a second saddle plate 22 attached to the transverse bulkhead 08 is fillet-welded on the first platform 04 and a second platform 05 respectively, the upper end and the lower end of a first vertical support 3 are lap-welded with the two second saddle plates 22 respectively, the welding height h1 of the lap-welding is not less than 80mm, and the distances from the first vertical support 3 to the first platform 04 and the second platform 05 are 50 mm-70 mm (namely the clearance height of the second saddle plate 22 is 50 mm-70 mm); when the reverse side of the first platform 04 below the hanging horse has no strong structure, welding a reinforcing plate 5 on the upper corner of the first platform 04 below the hanging horse, welding a second horse plate 22 on the upper corner of the second platform 05 below the hanging horse, lap-welding the upper end of the first vertical support 3 with the reinforcing plate 5, lap-welding the lower end of the first vertical support 3 with the second horse plate 22, and welding height of the lap-welding is not less than 80 mm; the distances from the first vertical support 3 to the first platform 04 and the second platform 05 are both 50 mm-70 mm (namely the height of the second horse board 22 is 50 mm-70 mm); when the reverse side of the second platform 05 below the hanging horse is provided with the transverse T-shaped material 07, the reverse side of a panel 072 of the transverse T-shaped material 07 and the top surface of the third platform 06 are respectively fillet-welded with a second horse board 22, the upper end and the lower end of a second vertical support 4 below the hanging horse are respectively lap-welded with the two second horse boards 22, and the welding height of the lap-welding is not less than 80 mm; the distance between the panel 072 of the transverse T-shaped section 07 on the second platform 05 and the second vertical support 4 is 50-70 mm (namely, the height of the second horse board 22 is 50-70 mm); the distance between the second vertical support 4 and the third platform 06 is 50 mm-70 mm (namely the height of the second horse plate 22 is 50 mm-70 mm); when a transverse bulkhead 08 is arranged on the reverse side of the second platform 05 below the suspended bridge, a second horse plate 22 attached to the transverse bulkhead 08 is fillet-welded on the second platform 05 and the third platform 06 respectively, the upper end and the lower end of the second vertical support 4 are lap-welded with the two second horse plates 2 respectively, and the welding height of the lap-welding is not less than 80 mm; the distances from the second vertical support 4 to the second platform 05 and the third platform 06 are both 50 mm-70 mm (namely the height of the second horse plate 22 is 50 mm-70 mm); when the reverse side of the second platform 05 below the hanging horse has no strong structure, welding a reinforcing plate 5 on the upper corner of the second platform 05 below the hanging horse, welding a second horse plate 22 on the upper corner of the third platform 06 below the hanging horse, lap-welding the upper end of the second vertical support 4 with the reinforcing plate 5, lap-welding the lower end of the second vertical support 4 with the second horse plate 22, and welding height of the lap-welding is not less than 80 mm; the distances from the second vertical support 4 to the second platform 05 and the third platform 06 are both 50 mm-70 mm (namely, the height of the second horse plate 22 is 50 mm-70 mm).

It is understood that the height h of the second horse board 22 is at least 130mm, and in this embodiment, a horse board with a length of 300mm, a height of 150mm and a thickness of 8mm is preferably selected, and in this case, the welding height h1 of the lap welding of the second horse board 22 is preferably set to be 100mm, and the height of the left gap is 50mm (the height of the left gap is horse board height — the welding height of the lap welding).

Further, first vertical support 3 is for embracing the channel-section steel, second vertical support 4 is the channel-section steel, embraces the channel-section steel and is formed by two channel-section steel concatenations to guarantee that first vertical support 3's intensity meets the requirements.

It can be understood that the first vertical support 3 and the second vertical support 4 can also be made of steel materials such as i-steel and steel pipe which are common in the market, and the strength of the steel materials can meet the requirement.

It will be appreciated that if the total section is heavy, and the existing reinforcement solution is still not satisfactory, a third vertical support may be provided between the third platform 06 and the bottom section 01 to further increase the strength and rigidity of the total section.

In conclusion, the reinforcing method for hoisting the large-opening block section utilizes the distance-keeping beam to connect the port section and the starboard section so as to solve the problem that the block section has poor integral rigidity and is easy to deform due to a large-opening structure; meanwhile, the first vertical support and the second vertical support form a continuous stress plane, so that the pulling force applied to the lifting frame can be quickly and effectively dispersed and transmitted downwards, the lifting deformation of the large-opening main section is controlled, the strength of the structure is increased, the safety of the structure of the large-opening main section in the whole lifting process is ensured, and the one-time lifting of the large-opening main section is realized.

The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention shall be covered by the claims of the present invention.