A trolley track installation structure and installation method for a truss beam

Abstract

The present invention provides a trolley track installation structure and installation method for a truss beam, wherein the trolley track installation structure of the truss beam comprises: a cofferdam, wherein the cofferdam is used to be arranged on the upper wing plate of the truss beam, wherein the cofferdam comprises a plurality of cofferdams, wherein the plurality of cofferdams are configured to be distributed along a length direction parallel to the upper wing plate, and wherein the cofferdam is used to fill a mixed resin; wherein the mixed resin is used to form a supporting layer for supporting the trolley track after curing. The trolley track installation structure of the truss beam of the embodiment of the present invention forms a supporting layer for supporting the trolley track by curing, and the supporting layer can eliminate the dimensional deformation of the upper wing plate surface of the track-bearing beam, and the installation structure of the embodiment of the present invention has the advantages of high installation accuracy and simple structure.

Description

Technical Field

[0001] The invention relates to the technical field of crane steel structure manufacturing and installation, and in particular to a trolley track installation structure and an installation method for a truss girder. Background Art

[0002] In order to meet the needs of large-scale ships, a large low-profile telescopic truss girder quay crane is designed. This type of quay crane can meet the height limit requirements and the requirements of loading and unloading large ship containers. This type of quay crane is a single truss girder structure with a long overall length. The trolley track support beam is arranged in the lower area of ​​the beam. The structure is complex and the welding amount is large. After welding, there are often deviations in the opening size of the left and right support beams, the height difference of the left and right support beams, the straightness of the support beams, and the surface flatness of the support beams. Even after correction, it will affect the installation quality of the trolley track. Summary of the invention

[0003] In view of this, the present invention provides a trolley track installation structure for a truss beam, which is used to solve the problem of poor installation quality of the trolley track.

[0004] In addition, the present invention also provides a method for installing a trolley track of a truss beam.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] The trolley track installation structure of the truss girder according to the first embodiment of the present invention comprises:

[0007] A cofferdam, the cofferdam is used to be arranged on the upper wing plate of the truss girder, the cofferdam includes a plurality of cofferdams, the plurality of cofferdams are configured to be distributed along a length direction parallel to the upper wing plate, and the cofferdam is used to fill the mixed resin;

[0008] The mixed resin is used to form a supporting layer for supporting the trolley track after solidification.

[0009] Furthermore, the plurality of cofferdams are arranged in sections.

[0010] Furthermore, each of the cofferdams includes: two oppositely arranged first enclosures and two oppositely arranged second enclosures along a length direction perpendicular to the first enclosures, the first enclosures and the second enclosures are connected end to end, and the two first enclosures / two second enclosures are configured to be symmetrically arranged relative to the center line of the trolley track.

[0011] Furthermore, the trolley track installation structure of the truss girder of the embodiment of the present invention may also include:

[0012] A counterweight block, the counterweight block is arranged in one-to-one correspondence with the cofferdam, and the counterweight block is used to flatten the mixed resin;

[0013] A partition is provided between the counterweight block and the mixed resin.

[0014] Furthermore, the trolley track installation structure of the truss girder of the embodiment of the present invention may also include:

[0015] A plurality of pads are provided, and the plurality of pads are used to be symmetrically arranged relative to the trolley track to support the track pressure plate, and the pads are flush with the supporting layer.

[0016] The method for installing a trolley track of a truss girder according to the second aspect of the present invention comprises the following steps:

[0017] S1, providing a truss girder, wherein the truss girder includes a track-bearing beam, and making a mark indicating the center line of the trolley track on the upper wing plate of the track-bearing beam;

[0018] S2, making a plurality of groups of cofferdams distributed along a length direction parallel to the upper wing plate;

[0019] S3, manufacturing a support layer for supporting the trolley track;

[0020] S4, installing the trolley track onto the supporting layer of the upper wing plate according to the mark.

[0021] Furthermore, the method of making the mark representing the center line of the trolley track in step S1 is:

[0022] S11, measuring the structural data of the truss girder, and obtaining the position coordinates of the center line of the trolley track through modeling;

[0023] S12, referring to the position coordinates, making a mark on the upper wing plate indicating the center line of the trolley track.

[0024] Furthermore, the step S2 comprises:

[0025] S21, using an adhesive to fix two first enclosures and two second enclosures that are oppositely disposed on the upper wing plate, respectively, wherein the first enclosure is disposed perpendicularly to the second enclosure, and the two first enclosures / two second enclosures are disposed symmetrically with respect to a center line of the trolley track;

[0026] S22, using elastic glue to connect the first enclosure plate and the second enclosure plate end to end to form a cofferdam;

[0027] S23, repeating steps S21 to S22, and making a plurality of the cofferdams along a length direction parallel to the upper wing plate;

[0028] S24, coating a release agent on the outer wall of each cofferdam to form a release layer.

[0029] Furthermore, the step S3 comprises:

[0030] S31, preparing mixed resin;

[0031] S32, filling the mixed resin into the cofferdam, so that the mixed resin fills the cofferdam;

[0032] S33, removing bubbles in the poured mixed resin and letting it stand for 10 to 20 minutes;

[0033] S34, setting a partition on the surface of the mixed resin, coating a release agent on the side of the partition that contacts the mixed resin, placing a counterweight on the partition, and allowing the counterweight to act on the mixed resin for 15 to 18 hours;

[0034] S35, removing the counterweight block and the partition plate, and cutting the solidified mixed resin along the inner side of the cofferdam to obtain the support layer;

[0035] S36, removing and cleaning the cofferdam.

[0036] Furthermore, the step S4 comprises:

[0037] S41, placing a rubber on the support layer according to the mark;

[0038] S42, placing the trolley track on the rubber according to the mark;

[0039] S43, symmetrically arranging a plurality of pads on both sides of the trolley track, wherein the pads are flush with the support layer;

[0040] S44, a pressing plate matching the trolley track is arranged on the surface of the pad, and the bolts on the pressing plate are tightened to fix the trolley track on the upper wing plate.

[0041] The above technical solution of the present invention has at least one of the following beneficial effects:

[0042] According to the trolley track installation structure of the truss beam of the embodiment of the present invention, a plurality of cofferdams are arranged on the upper wing plate of the truss beam, and mixed resin is filled in the cofferdams. After the mixed resin is cured, a support layer for supporting the trolley track can be formed. The cured support layer can eliminate the dimensional deformation of the upper wing plate of the rail-bearing beam caused by welding, thereby improving the installation accuracy of the trolley track. The installation structure of the embodiment of the present invention is used to install the trolley track, which has the advantages of high installation accuracy and simple structure.

[0043] The trolley track installation method for the truss girder according to the embodiment of the present invention has the advantages of simple operation and high installation accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 It is a schematic diagram of the main structure of a truss girder according to an embodiment of the present invention;

[0045] Figure 2 It is a schematic side view of the structure of a truss girder according to an embodiment of the present invention;

[0046] Figure 3 It is a schematic structural diagram of a rail-bearing beam before welding according to an embodiment of the present invention;

[0047] Figure 4 This is a schematic structural diagram of a welded rail-bearing beam according to an embodiment of the present invention;

[0048] Figure 5 This is a schematic diagram of the installation of a rail pressure plate according to an embodiment of the present invention;

[0049] Figure 6 A schematic diagram of the distribution structure of the cofferdam according to an embodiment of the present invention;

[0050] Figure 7 It is a schematic diagram of the installation structure of the trolley track according to an embodiment of the present invention;

[0051] Figure 8 A schematic diagram of the size measurement of a truss girder according to an embodiment of the present invention;

[0052] Fig. 9 This is a schematic diagram of the structure of the track-bearing beam and trolley track modeling according to an embodiment of the present invention.

[0053] Reference numerals:

[0054] 110. Cofferdam; 111. First enclosure; 112. Second enclosure; 120. Support layer; 130. Pad; 140. Rubber; 200. Truss beam; 210. Track-bearing beam; 211. Upper wing plate; 212. Web plate; 220. Trolley track; 230. Track pressure plate. DETAILED DESCRIPTION

[0055] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention.

[0056] Unless otherwise defined, the technical terms or scientific terms used in the present invention shall have the usual meanings understood by persons with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "one" do not indicate quantity restrictions, but indicate the existence of at least one. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship also changes accordingly.

[0057] The following is combined with Figure 1-9 The trolley track installation structure and installation method of the truss girder in the embodiment of the present invention are described in detail.

[0058] The installation structure of the trolley track 220 of the truss girder 200 according to the embodiment of the present invention includes a cofferdam 110 .

[0059] Specifically, the cofferdam 110 is used to be arranged on the upper wing plate 211 of the truss girder 200. The cofferdam 110 includes a plurality of cofferdams 110, which are arranged to be distributed along the length direction parallel to the upper wing plate 211. The cofferdam 110 is used to fill the mixed resin, and the mixed resin is used to form the support layer 120 for supporting the trolley track 220 after curing. Figure 1-4 As shown, the truss beam 200 is relatively long, and the rail beam 210 is located in the lower area of ​​the truss beam 200. The rail beam 210 has a complex structure and a large amount of welding, which makes the upper wing plate 211 of the rail beam 210 easily deformed after welding. The height difference and flatness deviation of the upper wing plate 211 have a direct impact on the installation quality of the trolley track 220. Figure 5-6 As shown, a plurality of cofferdams 110 are arranged on the surface of the upper wing plate 211, and the plurality of cofferdams 110 are distributed along the length direction parallel to the upper wing plate 211. Specifically, the cofferdams 110 can be fixed on the surface of the upper wing plate 211 by using instant adhesive, for example; and then the cofferdams 110 are filled with mixed resin, and the mixed resin can use, for example, the common AB component, that is, a mixture of component A and component B. The specific ingredients and mixing ratio of component A and component B are not limited here, as long as conventional components and ratios are used. After the resin is cured, a support layer 120 that supports the trolley track 220 can be formed. The cured support layer 120 can eliminate the dimensional deformation of the upper wing plate 211 of the track-bearing beam 210 caused by welding, and improve the installation accuracy of the trolley track.

[0060] The installation structure of the trolley rail 220 of the truss beam 200 of the embodiment of the present invention forms a support layer 120 that supports the trolley rail 220 through solidification. The support layer 120 can eliminate the dimensional deformation of the surface of the upper wing plate 211 of the track-bearing beam 210. The installation structure of the embodiment of the present invention has the advantages of high installation accuracy and simple structure.

[0061] Furthermore, the plurality of cofferdams 110 are arranged in sections. Figure 6 As shown, each cofferdam 110 is arranged in sections on the surface of the upper wing plate 211, and the height of each cofferdam 110 depends on the deformation of the surface of the upper wing plate 211 at the location. The greater the deformation of the surface of the upper wing plate 211, the higher the cofferdam 110, and the connection positions of the multiple cofferdams 110 can be sealed with elastic sealant to prevent the filled mixed resin from overflowing from the gaps at the connection positions of the cofferdams 110. The segmented arrangement of the cofferdams 110 can make the upper surfaces of the multiple cofferdams 110 on the same horizontal plane, thereby obtaining a support layer 120 with a smooth surface for supporting the trolley track 220, further improving the installation accuracy and installation quality of the trolley track 220.

[0062] Furthermore, each cofferdam 110 includes two first panels 111 disposed opposite to each other and two second panels 112 disposed opposite to each other in a length direction perpendicular to the first panels 111. The first panels 111 and the second panels 112 are connected end to end, and the two first panels 111 / the two second panels 112 are configured to be symmetrically disposed relative to the center line of the trolley track 220. In other words, Figure 6 As shown, taking the two first enclosures 111 symmetrically arranged relative to the center line of the trolley track 220 as an example, the length direction of the first enclosure 111 extends along the center line of the trolley track 220, and the second enclosure 112 is arranged along the length direction perpendicular to the first enclosure 111, and the first enclosure 111 and the second enclosure 112 are connected end to end to form the cofferdam 110. In other words, the center line of the length direction of the cofferdam 110 coincides with the center line of the trolley track 220, that is, the center line of the support layer 120 coincides with the center line of the trolley track 220, so that the center of gravity of the trolley track 220 falls on the center line of the support layer 120, which can avoid uneven force on the support layer 120 due to center offset and improve the service life of the support layer 120.

[0063] Furthermore, the installation structure of the trolley track 220 of the truss girder 200 of the embodiment of the present invention may also include a counterweight and a partition. The counterweight is arranged in a one-to-one correspondence with the cofferdam 110, and the counterweight is used to flatten the mixed resin, and the partition is arranged between the counterweight and the mixed resin. That is to say, an excess of mixed resin is poured into the cofferdam 110, and a partition and a counterweight (not shown in the figure) are placed in sequence on the liquid surface of the mixed resin. The partition is used to prevent the mixed resin from being contaminated on the counterweight, and the counterweight is used to apply pressure to the mixed resin, thereby squeezing out the excess mixed resin from the filling space of the cofferdam 110, so that the height of the mixed resin is equal to the height of the cofferdam 110, so that the support layer 120 formed by the solidification of the mixed resin is on the same horizontal plane, further improving the installation accuracy and installation quality of the trolley track 220.

[0064] It is worth mentioning that, for example, a release agent may be coated on the outer wall of the cofferdam 110. This is because the overflowing mixed resin solidifies on the outer wall of the cofferdam 110 under the pressure of the counterweight block. Pre-coating of the release agent can facilitate operators to remove the mixed resin that overflows from the cofferdam 110 and solidifies on the outer wall.

[0065] Furthermore, the trolley track mounting structure of the truss girder 200 of the embodiment of the present invention may further include a plurality of pads 130. The plurality of pads 130 are used to be symmetrically arranged relative to the trolley track 220 to support the track pressure plate 230, and the pads 130 are flush with the support layer 120. In other words, Figure 5 As shown, every two pads 130 are symmetrically arranged on both sides of the trolley track 220, and the pads 130 and the track pressing plates 230 are arranged one by one to support the track pressing plates 230. This is because the support layer 120 formed by solidification makes the surface of the upper wing plate 211 raised, and the existing track pressing plates 230 need to be used in conjunction with the trolley track 220 to fix the trolley track 220, such as Figure 7 As shown, a pad 130 is provided and made flush with the support layer 120 . The pad 130 allows the existing track pressure plate 230 to cooperate with the trolley track 220 installed on the support layer 120 of the embodiment of the present invention, thereby facilitating fixing the trolley track 220 on the support layer 120 .

[0066] The method for installing the trolley track 220 of the truss girder 200 according to the second aspect of the present invention comprises the following steps:

[0067] S1, providing a truss girder 200, the truss girder 200 includes a track-bearing beam 210, and making a mark indicating the center line of the trolley track 220 on the upper wing plate 211 of the track-bearing beam 210;

[0068] S2, making a plurality of groups of cofferdams 110 distributed along the length direction parallel to the upper wing plate 211;

[0069] S3, manufacturing a support layer 120 for supporting the trolley track 220;

[0070] S4, installing the trolley track 220 onto the supporting layer 120 of the upper wing plate 211 according to the marking.

[0071] Specifically, the method for installing the trolley track 220 of the truss girder 200 of the embodiment of the present invention is:

[0072] S1, provide a truss girder 200, the truss girder 200 includes a track-bearing beam 210, and make a mark indicating the center line of the trolley track 220 on the upper wing plate 211 of the track-bearing beam 210.

[0073] Furthermore, the method for making the mark representing the center line of the trolley track 220 in step S1 is:

[0074] S11, measuring the structural data of the truss girder 200, and obtaining the position coordinates of the center line of the trolley track 220 through modeling; S12, making a mark indicating the center line of the trolley track 220 on the upper wing plate 211 with reference to the position coordinates. Figure 8 As shown, it can be based on Figure 8 The measurement points shown measure the structural data of the truss girder 200. The structural data may be, for example, test points taken on the rail beam 210 at intervals of 2 m, for example Figure 8 A total of 49 measurement points were intercepted, and the distance A from the free edge of the rail beam 210 to the web 212 and the opening size L of the two rail beams 210 were measured; Fig. 9 As shown, according to the detected structural data, the actual structure of the rail-bearing beam 210 is simulated and drawn using drawing software, and the center line of the trolley track 220 is determined through adjustment. The center line of the trolley track 220 is the center line of the length direction of the cofferdam 110 and the supporting layer 120. In addition, the positioning points of the track pressing plates 230 arranged on both sides of the trolley track 220 can also be determined through the center line of the trolley track 220.

[0075] S2, manufacturing a plurality of groups of cofferdams 110 distributed along a length direction parallel to the upper wing plate 211.

[0076] Further, step S2 includes:

[0077] S21, using adhesive to fix two oppositely arranged first enclosures 111 and second enclosures 112 on the upper wing plate 211 respectively, the first enclosure 111 and the second enclosure 112 are arranged vertically, and the two first enclosures 111 / two second enclosures 112 are arranged symmetrically with respect to the center line of the trolley track 220; S22, using elastic glue to connect the first enclosure 111 and the second enclosure 112 end to end to form a cofferdam 110; S23, repeating steps S21 to S22, making multiple cofferdams 110 along the length direction parallel to the upper wing plate 211; S24, applying a release agent on the outer wall of each cofferdam 110 to form a demoulding layer. In other words, if Figure 6 As shown, the center line of the length direction of the cofferdam 110 coincides with the center line of the trolley track 220, that is, the center line of the support layer 120 coincides with the center line of the trolley track 220, so that the center of gravity of the trolley track 220 falls on the center line of the support layer 120, which can avoid uneven force on the support layer 120 due to center deviation and improve the service life of the support layer 120. In addition, by applying a release agent on the outer wall of the cofferdam 110, it is convenient for operators to remove the mixed resin that has solidified after overflow.

[0078] S3, manufacturing a support layer 120 for supporting the trolley track 220.

[0079] Further, step S3 includes:

[0080] S31, prepare the mixed resin; S32, fill the mixed resin into the cofferdam 110, so that the mixed resin fills the cofferdam 110; S33, remove the bubbles in the poured mixed resin, and the standing time can be, for example, 10 minutes or 20 minutes; S34, set a partition on the surface of the mixed resin, and coat the side of the partition that contacts the mixed resin with a release agent, and place a counterweight on the partition so that the counterweight acts on the mixed resin, and the action time can be, for example, 15 hours, 16 hours, 17 hours, or 18 hours; it is worth noting that the above-mentioned standing time and action time are related to the material of the mixed resin and the ambient temperature, and are not limited here. S35, remove the counterweight and partition, and cut the solidified mixed resin along the inner side of the cofferdam 110 to obtain the support layer 120; S36, remove and clean the cofferdam 110. That is, after the mixed resin is cured, a support layer 120 with a certain hardness can be formed, and the support layer 120 can support the trolley track 220, and the excess mixed resin can be squeezed out from the filling space of the cofferdam 110 so that the height of the mixed resin is equal to the height of the cofferdam 110, such as Figure 7 As shown, the support layer 120 formed by the mixed resin solidification is on the same horizontal plane, further improving the installation accuracy and installation quality of the trolley track 220.

[0081] S4, installing the trolley track 220 onto the supporting layer 120 of the upper wing plate 211 according to the marking.

[0082] Further, step S4 includes:

[0083] S41, set the rubber 140 on the support layer 120 according to the mark; S42, place the trolley track 220 on the rubber 140 according to the mark; S43, symmetrically set a plurality of pads 130 on both sides of the trolley track 220, and the pads 130 are flush with the support layer 120; S44, set a pressure plate matching the trolley track 220 on the surface of the pad 130, tighten the bolts on the pressure plate, and fix the trolley track 220 on the upper wing plate 211. In other words, if Figure 7 As shown, pads 130 and track pressing plates 230 are symmetrically arranged on both sides of the trolley track 220. The pads 130 can make the existing track pressing plates 230 cooperate with the trolley track 220 installed on the supporting layer 120 of the embodiment of the present invention, so as to facilitate fixing the trolley track 220 on the supporting layer 120.

[0084] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A trolley track installation method, characterized in that: The steps include: S1, providing a truss girder, wherein the truss girder includes a track-bearing beam, and making a mark indicating the center line of the trolley track on the upper wing plate of the track-bearing beam; S2, making a plurality of groups of cofferdams distributed along a length direction parallel to the upper wing plate; S3, manufacturing a support layer for supporting the trolley track; S4, installing the trolley track onto the supporting layer of the upper wing plate according to the mark; The method for making a mark indicating the center line of the trolley track in step S1 is: S11, measuring the structural data of the truss girder, and obtaining the position coordinates of the center line of the trolley track through modeling; S12, making a mark indicating the center line of the trolley track on the upper wing plate with reference to the position coordinates; The step S2 comprises: S21, using an adhesive to fix two first enclosures and two second enclosures that are oppositely disposed on the upper wing plate, respectively, wherein the first enclosure is disposed perpendicularly to the second enclosure, and the two first enclosures / two second enclosures are disposed symmetrically with respect to a center line of the trolley track; S22, using elastic glue to connect the first enclosure plate and the second enclosure plate end to end to form a cofferdam; S23, repeating steps S21 to S22, and making a plurality of the cofferdams along a length direction parallel to the upper wing plate; S24, coating a release agent on the outer wall of each of the cofferdams to form a release layer; The step S3 comprises: S31, preparing mixed resin; S32, filling the mixed resin into the cofferdam, so that the mixed resin fills the cofferdam; S33, removing bubbles in the poured mixed resin and letting it stand for 10 to 20 minutes; S34, a partition is arranged on the surface of the mixed resin, a release agent is coated on the side of the partition that contacts the mixed resin, a counterweight is placed on the partition, and the counterweight acts on the mixed resin for 15 to 18 hours; S35, removing the counterweight block and the partition plate, and cutting the solidified mixed resin along the inner side of the cofferdam to obtain the support layer; S36, removing and cleaning the cofferdam; The step S4 comprises: S41, placing a rubber on the support layer according to the mark; S42, placing the trolley track on the rubber according to the mark; S43, symmetrically arranging a plurality of pads on both sides of the trolley track, wherein the pads are flush with the support layer; S44, a pressing plate matching the trolley track is arranged on the surface of the pad, and the bolts on the pressing plate are tightened to fix the trolley track on the upper wing plate.

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