Method and structure for preventing water accumulation of quay crane girder and girder preparation method

Abstract

According to the method for preventing ponding of the quay crane girder, ponding of the girder is prevented, the girder comprises a bottom plate, a pair of webs located on the two sides of the bottom plate and a cover plate located on the tops of the webs, a plurality of partition plates are further arranged in the space defined by the webs and the bottom plate, node plates are further arranged on the webs, and the node plates and the cover plate are welded. According to the method, the height of at least part of the cover plates located in the range where the gusset plates are located is larger than the height of the cover plates not located in the range where the gusset plates are located, so that the cover plates form gradients. The method can effectively prevent water from being accumulated on the cover plate. The invention further provides a quay crane girder water accumulation prevention structure and a girder preparation method.

Description

Technical Field

[0001] The present invention relates to the field of port cranes, and in particular to the field of beam structures. Background Art

[0002] The quay crane girder includes a bottom plate, a pair of web plates on both sides of the bottom plate, and a cover plate on the top of the web plate. A plurality of partitions are also arranged in the space enclosed by the web plate and the bottom plate. A node plate is arranged on the web plate, and the node plate is used to connect other parts of the quay crane. For example, a large node plate on the inner side of the upper cross beam on the land side and a node plate on the tail tie rod are arranged on the girder, which are used to connect with the upper cross beam on the land side and the tail tie rod respectively.

[0003] The node plate is welded to the inside of the web plate and is also welded to the web cover plate. Generally speaking, there are multiple penetration welds between the cover plate and the node plate, and the welding amount is prone to imbalance, which affects the flatness of the cover plate encapsulated on the top of the beam, and water accumulation is prone to occur after assembly. Summary of the invention

[0004] One object of the present invention is to provide a method for preventing water accumulation on a quay crane beam, which can effectively prevent water accumulation on a cover plate.

[0005] A method for achieving the above-mentioned purpose is used to prevent water accumulation in a beam, wherein the beam includes a bottom plate, a pair of webs located on both sides of the bottom plate, and a cover plate located on top of the webs, a plurality of partitions are provided in the space enclosed by the webs and the bottom plate, a node plate is also provided on the webs, and the node plate is welded to the cover plate. This method makes the height of at least part of the cover plate located within the range where the node plate is located greater than the height of the cover plate not located within the range where the node plate is located, so that the cover plate forms a slope.

[0006] In one or more embodiments, within the length range along the extension direction of the beam, the cover plate height located in the middle area of ​​the node plate is greater than the cover plate height located in the head and / or tail area of ​​the node plate, so that the cover plate forms a slope within this length range.

[0007] In one or more embodiments, the height of the diaphragm located in the middle area of ​​the gusset plate is greater than the height of the diaphragm located in the head and / or tail area of ​​the gusset plate, and the cover plate is welded to the top of the diaphragm.

[0008] In one or more embodiments, a height of a partition plate close to the gusset plate is greater than a height of a partition plate far from the gusset plate.

[0009] In one or more embodiments, a height of the partition close to the web side is smaller than a height away from the web side.

[0010] In one or more embodiments, the height difference between different partitions is made no more than 10 mm.

[0011] In one or more embodiments, the amount of sinking after welding the cover plate and the node plate is obtained so that the height difference of at least one of the partitions within the range of the node plate relative to the partitions not within the range of the node plate is greater than or equal to the amount of sinking.

[0012] Another object of the present invention is to provide a water accumulation prevention structure for a quay crane beam, which is arranged on the beam, and the beam includes a bottom plate, a pair of webs located on both sides of the bottom plate, and a cover plate located on the top of the webs. A partition is also provided in the space enclosed by the webs and the bottom plate, and a node plate is provided on the web, the node plate is welded to the cover plate, and the top of the partition is welded to the cover plate. Within the length range of the node plate along the extension direction of the beam, the height of the partition located in the middle area of ​​the node plate is greater than the height of the partition located in the head and / or tail area of ​​the node plate, or the height of the partition located in the area where the node plate is located is greater than the height of the partition not located in the area where the node plate is located, so that a slope is formed on the surface of the cover plate.

[0013] In one or more embodiments, the height of the diaphragm close to the gusset plate is greater than that of the diaphragm far from the gusset plate, or the height of the diaphragm close to the web plate is less than that of the diaphragm far from the web plate.

[0014] Another object of the present invention is to provide a method for preparing a beam, wherein the beam includes a bottom plate, a plurality of partitions, a pair of webs, a cover plate and a node plate, comprising the following steps: raising a portion of the partition to form a raised partition; welding each partition to the surface of the bottom plate with intervals in sequence along the length direction of the beam, so that the position of the raised partition on the bottom plate is located within the position area of ​​the node plate on the web; assembling and positioning the bottom plate and the pair of webs to form a three-sided formed welding frame; assembling the cover plate; flipping the welding frame at a certain angle so that the node plate mounting holes on the web expose the welding areas of the partition and the cover plate; and assembling the node plate.

[0015] In one or more embodiments, the raised partition includes a first portion raised partition and a second portion raised partition, the first portion raised partition is higher than the second portion raised partition, so that the first portion raised partition is located in the middle of the node plate, and the second portion raised partition is located at the head and / or tail of the node plate.

[0016] In one or more embodiments, when preparing the partition, the blanked partition is made to include different height dimensions to increase the height of the partition.

[0017] The above method avoids the problem of water accumulation in the concave area of ​​the beam cover plate after assembly due to excessive flatness of the cover plate caused by node plate welding, thereby improving construction efficiency and local molding quality of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and other features, properties and advantages of the present invention will become more apparent through the following description in conjunction with the accompanying drawings and embodiments, in which:

[0019] Figure 1 is a partial schematic diagram of the gusset plate;

[0020] Figure 2A yes Figure 1 Side cross-sectional view along the AA direction;

[0021] Figure 2B yes Figure 1 Side cross-sectional view in the middle BB direction;

[0022] Figure 3 It is a schematic diagram of the tie rod node plate at the rear of the double-box rear beam;

[0023] Figure 4 yes Figure 3 Side cross-sectional view in the mid-CC direction;

[0024] Figure 5 It is a schematic diagram of the tie rod node plate of the double-box front beam;

[0025] Figure 6 yes Figure 3 Side cross-sectional view in the mid-EE direction;

[0026] Figure 7 It is a schematic diagram of the node plate of the upper transverse section on the land side of the single-box rear beam;

[0027] Figure 8 yes Figure 7 Side cross-sectional view in the mid-GG direction;

[0028] Fig. 9 It is a schematic diagram of the node plate in the pulley block area of ​​the front beam of a single box;

[0029] Fig.10 yes Fig. 9 Side cross-sectional view in the mid-HH direction;

[0030] Fig.11 This is a structural breakdown diagram of the beam;

[0031] Fig.12 It is a schematic diagram of the structure without a cover plate;

[0032] Fig.13 This is the front view of the beam. DETAILED DESCRIPTION

[0033] The present invention is further described below in conjunction with specific embodiments and drawings. More details are elaborated in the following description to facilitate a full understanding of the present invention. However, the present invention can obviously be implemented in a variety of other ways different from the description herein. Those skilled in the art can make similar generalizations and deductions based on actual application situations without violating the connotation of the present invention. Therefore, the protection scope of the present invention should not be limited by the content of this specific embodiment.

[0034] It should be noted that these and other subsequent drawings are only examples and are not drawn to scale, and should not be used to limit the actual scope of protection required by the present invention.

[0035] Fig.11 and Fig.12 The basic structure of the girder 1 is shown, including a bottom plate 11, a pair of webs 12 located on both sides of the bottom plate 11, and a cover plate 13 located on the top of the webs 12. A plurality of partitions 14 are also provided in the space enclosed by the webs 12 and the bottom plate 11. The cover plate 13 is welded to the top of the pair of webs 12 and the partitions 14. A node plate 15 is provided on the web 12, and a node plate mounting hole 120 connected to the node plate 15 is provided on the web 12. The node plate 15 is used to connect other components of the quay crane. Some node plates 15 are special-shaped parts, such as Figure 1 shown.

[0036] The node plate 15 is welded to the node plate mounting hole 120 in a circle, and is welded to the cover plate 13 and the partition plate 14. However, the cover plate 13 and the node plate 15 generally need to be welded, which easily leads to an excessive flatness of the cover plate 13 and water accumulation after assembly.

[0037] To solve the above problems, the present disclosure proposes a method for preventing water accumulation in a quay crane beam, wherein the height of the cover plate within the range where the node plate is located is greater than the height of the cover plate not within the range where the node plate is located, so that a slope is formed on the surface of the cover plate 13.

[0038] For example, in the first embodiment of the method, within the length range L where the node plate 15 is located and along the extension direction of the beam 1, the height of the cover plate 13 in the middle area 131 of the node plate is greater than the height of the cover plate in the head 132 and / or tail 133 area of ​​the node plate, so that within the length range L, the cover plate forms a slope inclined from the middle to the head and tail sides.

[0039] The gusset plate head 132 refers to the area from the starting end to 1 / 3 of the gusset plate length, the gusset plate middle area 131 refers to the area from 1 / 3 to 2 / 3 of the gusset plate length, and the tail 133 refers to the area from 2 / 3 of the gusset plate length to the tail end. Figure 1 The midpoint of the node plate 15 is located in the middle region 131. Of course, the middle region 131, the head 132, and the tail 133 may also have other size limitations.

[0040] In the second embodiment of the method, the height of the cover plate 13 within the range where the node plate 15 is located is made greater than the height of the cover plate not within the range where the node plate is located. After the surface of the cover plate 13 forms a slope, it is difficult for water to accumulate, thereby effectively improving the local forming quality of the component.

[0041] Specifically, the height of the cover plate 13 is achieved by adjusting the height of the partition plate 14 .

[0042] like Figure 1 As shown, the height of the partition located in the middle area 131 of the node plate is made greater than the height of the partition located in the head 132 and / or tail 133 area of ​​the node plate, so that the cover plate 13 is welded to the top of the partition 14 of different heights, thereby forming a slope on the surface of the cover plate 13. For example, the height size of the partition 14 is controlled during blanking, and the welding reverse deformation amount is preset in advance. When the partition 14 in the node plate area is blanked by CNC, a first part heightened partition 141 and a second part heightened partition 142 with different heights are obtained. The first part heightened partition 141 and the second part heightened partition 142 are located in the node plate length area L, and the first part heightened partition 141 is higher than the second part heightened partition 142.

[0043] For example, if the height of the common partition 140 is H, the height of the first part heightened partition 141 is H+h1, and the height of the second part heightened partition 142 is H+h2, where h1 is greater than h2. h2 can be equal to 0, that is, no lifting process is performed.

[0044] In a first embodiment of the method, Figure 1 As shown, the first part heightening partition 141 is located in the middle of the node plate 15, and the second part heightening partition 142 is located in the head 132 and / or tail 133 of the node plate, so that the middle part of the cover plate is inclined toward the head and tail. The two second part heightening partitions 142 located in the head 132 and tail 133 of the node plate can be of different heights.

[0045] In a second embodiment of the method, Figure 5 The embodiment of the double box front beam shown in FIG. Figure 7 The single box rear beam embodiment shown, Fig. 9 Taking the embodiment of the single box front beam as an example, the first part of the heightened partition 141 is located within the length range L of the node plate 15, such as Figure 5 As shown, the overall height of the cover plate 13 in this area is raised as a whole.

[0046] Based on the above embodiment, the top of the partition 14 may be in an uneven state.

[0047] One situation is to make the height of the partition plate 14 close to the node plate 15 greater than the height of the side away from the node plate 15, such as Figure 2A-2B , Figure 4 , Figure 6 As shown, only the height of the side of the partition 14 close to the node plate is raised, such as the height of the left side of the two partitions are raised, respectively H+h1, H+h2, forming a lateral heightened part P, and the height of the side away from the node plate 15 is still H, that is, the side close to the node plate welding area is raised, thereby compensating for the sinking of the cover plate caused by the node plate welding. That is, at this time, the cover plate 13 not only presents a slope in the L direction, but also in the W direction perpendicular to the L direction, thereby effectively preventing the generation of water accumulation.

[0048] Another situation is to make the height of the partition 14 close to the web 12 side smaller than the height away from the web side, that is, it presents the characteristics of high in the middle and low on both sides along the W direction, forming a middle heightened part Q, such as Figure 8 , Fig.10 The single box beam structure shown in FIG. The heights of both sides of the partition 14 along the W direction are both H+h3, and the height of the middle of the partition 14 is H+h4, where h4 is greater than h3.

[0049] Preferably, in order to offset the amount of sinking after welding the cover plate 13 and the node plate 15, the height difference between at least one partition 14 within the length range L and the partition not within the length range is greater than or equal to the amount of sinking, so as to ensure that the height is raised to offset the sinking caused by welding by calculating and comparing the specific sinking amount, so that the cover plate 13 is in a higher position at the welding point to avoid the generation of water accumulation.

[0050] The cover plate 13 is not prone to having an excessively large slope. For example, in some embodiments, the height difference between different partitions is made to be no more than 10 mm.

[0051] During production and manufacturing, the above-mentioned process method can avoid the problem of sinking and water accumulation in the beam cover plate after assembly due to excessive flatness of the cover plate at the node plate position, thereby improving construction efficiency and local molding quality of the product, while reducing the labor cost, time cost and material cost of applying and polishing Koseixin due to local sinking, and reducing the cost of repainting due to local position rectification.

[0052] In combination with the introduction to the above-mentioned method for preventing water accumulation in the quay crane beam, it is also possible to understand a quay crane beam anti-water accumulation structure arranged on the beam.

[0053] In this structure, the top of the partition plate 14 is welded to the cover plate 13 .

[0054] Within the length range L along the extension direction of the beam where the node plate 15 is located, the height of the partition 14 located in the middle area 131 of the node plate 15 is greater than the height of the partition 14 located in the head 132 and / or tail 133 area of ​​the node plate 15, so that a slope is formed on the surface of the cover plate 13; or, the height of the partition 14 located in the area where the node plate 15 is located is greater than the height of the partition not located in the area where the node plate is located, so that a slope is formed on the surface of the cover plate 13.

[0055] The partition plate 14 located in the region where the node plate 15 is located refers to the partition plate 14 that needs to be welded to the node plate 15 in the L direction.

[0056] Furthermore, the height of the partition plate 14 on the side close to the node plate is greater than the height on the side away from the node plate, forming a lateral heightened portion P, such as Figure 4 As shown, the cover plate 13 also has a slope in the W direction perpendicular to the length range L; or the height of the partition plate 14 close to the web 12 side is less than the height away from the web 12 side, such as Figure 8 As shown, a middle elevated portion Q is formed.

[0057] After the heightening, the node plate area of ​​the quay crane cover plate has avoided the problem of water accumulation.

[0058] The preparation method of the beam is introduced below. The beam can be a double box beam or a single box beam. The beam includes a bottom plate 11, a plurality of partition plates 14, a pair of web plates 12, a cover plate 13 and a node plate 15.

[0059] First, when preparing the partition 14, the partition after cutting directly obtains different heights to form a heightened partition. The heightened partition further includes a first portion heightened partition 141 and a second portion heightened partition 142. The first portion heightened partition 141 is higher than the second portion heightened partition 142. The second portion heightened partition 142 can be larger than the ordinary partition 140 or equal to the ordinary partition 140. Fig.11 shown.

[0060] In addition, when cutting the partition, the top height of the partition can be set to different heights, such as cutting Figure 2A The characteristics shown in the W direction are high on one side and low on the other side, or cut into Figure 8 The characteristics shown are that the middle is high and the two sides are low along the W direction.

[0061] Each partition 14 is welded to the surface of the bottom plate 11 in sequence and at intervals along the length direction of the beam, so that the position of the heightened partition on the bottom plate is located in the position area of ​​the node plate 15 on the web 12, such as Fig.11 shown.

[0062] The bottom plate 11 and a pair of webs 12 are assembled to form a three-sided welded frame. Then the cover plate 13 is assembled. The welded frame is flipped at a certain angle, and the welding area of ​​the partition plate 14 and the cover plate 13 can be exposed through the node plate mounting holes 120 on the webs, which facilitates welding of the partition plate 14 and the cover plate 13.

[0063] Finally, the node plate 15 is assembled to complete the welding of the beam.

[0064] The beam obtained by the above method can effectively solve the problem of water accumulation, and has a simple structure and is relatively easy to implement. It reduces the labor cost, time cost and material cost of applying and polishing Koseixin due to local depressions, and reduces the cost of repainting due to local position rectification.

[0065] It should be noted that the above content uses words such as "first" and "second" to limit components, which is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above words have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0066] In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0067] At the same time, the present application uses specific words to describe the embodiments of the present application. For example, "one embodiment", "an embodiment", and / or "some embodiments" refer to a certain feature, structure or characteristic related to at least one embodiment of the present application. Therefore, it should be emphasized and noted that "one embodiment" or "an embodiment" or "an alternative embodiment" mentioned twice or more in different positions in this specification does not necessarily refer to the same embodiment. In addition, some features, structures or characteristics in one or more embodiments of the present application can be appropriately combined.

[0068] Although the present invention is disclosed as above with preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art may make possible changes and modifications without departing from the spirit and scope of the present invention. Therefore, any modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall fall within the protection scope defined by the claims of the present invention.

Claims

1. A method for preventing water accumulation in a quay bridge beam, which is used to prevent water accumulation in the beam, wherein the beam comprises a bottom plate, a pair of web plates located on both sides of the bottom plate, and a cover plate located on the top of the web plate, a plurality of partitions are further arranged in the space surrounded by the web plate and the bottom plate, a node plate is further arranged on the web plate, and the node plate is welded to the cover plate, and is characterized in that: The method makes the height of at least a portion of the cover plates located within the range where the gusset plate is located greater than the height of the cover plates not located within the range where the gusset plate is located, so that the cover plates form a slope.

2. The method according to claim 1, characterized in that Within the length range along the extending direction of the beam, the cover plate height at the middle region of the node plate is greater than the cover plate height at the head and / or tail region of the node plate, so that the cover plate forms a slope within the length range.

3. The method according to claim 1 or 2, characterized in that The height of the partition located in the middle area of ​​the node plate is made greater than the height of the partition located in the head and / or tail area of ​​the node plate, and the cover plate is welded to the top of the partition plate.

4. The method according to claim 3, characterized in that The height of a partition plate close to the gusset plate is greater than the height of a partition plate far from the gusset plate.

5. The method according to claim 3, characterized in that The height of the partition plate close to the web side is smaller than the height of the partition plate far from the web side.

6. The method according to claim 3, characterized in that Make sure the height difference between different partitions does not exceed 10mm.

7. The method according to claim 3, characterized in that Obtain the sinking amount after the cover plate and the node plate are welded, The height difference of at least one of the partitions located in the range where the node plate is located relative to the partitions not located in the range where the node plate is located is greater than or equal to the sinking amount.

8. A water accumulation prevention structure for a quay bridge beam, which is arranged on the beam, wherein the beam comprises a bottom plate, a pair of web plates located on both sides of the bottom plate, and a cover plate located on the top of the web plate, a partition plate is further arranged in the space enclosed by the web plate and the bottom plate, a node plate is arranged on the web plate, and the node plate is welded to the cover plate, characterized in that: The top of the partition is welded to the cover plate, and within the length range of the node plate along the extension direction of the beam, the height of the partition located in the middle area of ​​the node plate is greater than the height of the partition located in the head and / or tail area of ​​the node plate, or the height of the partition located in the area where the node plate is located is greater than the height of the partition not located in the area where the node plate is located, so that a slope is formed on the surface of the cover plate.

9. The structure according to claim 8, characterized in that The height of the partition plate close to the gusset plate is greater than the height of the partition plate away from the gusset plate, or The height of the partition plate close to the web side is smaller than the height of the partition plate away from the web side.

10. A method for preparing a beam, characterized in that: The girder includes a bottom plate, a plurality of partitions, a pair of web plates, a cover plate and a node plate, and includes the following steps: Raising a portion of the partition to form a raised partition; Welding the partitions to the surface of the bottom plate in sequence and at intervals along the length direction of the beam, so that the heightened partitions are located in the area where the node plate is located on the web; Assembling and positioning the bottom plate and the pair of web plates to form a three-sided formed welded frame; Assemble the cover; Flipping the welding frame at a certain angle so that the node plate mounting holes on the web plate expose the welding areas of the partition plate and the cover plate; The gusset plate is assembled.

11. The method according to claim 10, characterized in that The heightened partition includes a first portion of heightened partition and a second portion of heightened partition, wherein the first portion of heightened partition is higher than the second portion of heightened partition, so that the first portion of heightened partition is located in the middle of the node plate, and the second portion of heightened partition is located at the head and / or tail of the node plate.

12. The method according to claim 10, characterized in that When preparing the partition, the partition after cutting includes different height dimensions to increase the height of the partition.

13. The method according to claim 10, characterized in that The beam is a single box beam or a double box beam.

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