A truss type upper crossbeam

Abstract

The present invention provides a truss-type upper cross beam, comprising: a truss assembly, the truss assembly comprising: an upper chord; two side bars, the two side bars being obliquely arranged at the two ends of the upper chord; a lower chord, the lower chord being arranged parallel to the upper chord, the lower chord being used to connect a column; a box-type column, the box-type column being arranged vertically, the two ends of the box-type column being respectively connected to the upper chord and the lower chord; wherein the side bars, the upper chord and the lower chord are spiral steel pipes. The upper chord, the two side bars and the lower chord in the truss-type upper cross beam of the embodiment of the present invention are spiral steel pipes, so that the truss-type upper cross beam has a strong bearing capacity, can effectively reduce the working and non-working wheel pressures of the whole machine, and has the advantages of strong bearing capacity, small wheel pressure and strong wind resistance.

Description

Technical Field

[0001] The invention relates to the technical field of crane steel structures, and in particular to a truss-type upper crossbeam. Background Art

[0002] The quay crane, also known as the shore container crane, is a device used to load and unload containers on ships at the shore. In the design of the quay crane structure, the upper crossbeam of the box-shaped structure is very common. The two ends of the upper crossbeam of the box-shaped structure are connected to the upper end of the column, and the upper crossbeam is also connected to the beam. The upper crossbeam of this box beam structure design has a relatively small bearing capacity. If the cross-section is increased, the windward area will be larger, resulting in the problem of wheel pressure of the whole machine under wind load. Summary of the invention

[0003] In view of this, the present invention provides a truss-type upper cross beam, which is used to solve the problem of poor bearing capacity of existing box beams.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] The truss-type upper cross beam according to an embodiment of the present invention comprises:

[0006] A truss assembly, the truss assembly comprising:

[0007] chord rod;

[0008] Two side rods, the two side rods are obliquely arranged at two ends of the upper chord rod;

[0009] A lower chord rod, the lower chord rod is arranged parallel to the upper chord rod, and the lower chord rod is used to connect the column;

[0010] A box column, wherein the box column is vertically arranged, and both ends of the box column are respectively connected to the upper chord and the lower chord;

[0011] Wherein, the side rods, the upper chord rods and the lower chord rods are spiral steel pipes.

[0012] Furthermore, the truss-type upper crossbeam of the embodiment of the present invention may also include:

[0013] Two first node plates, at least a portion of each of which is used to connect to the upper end surface of the column, and two second node plates are respectively arranged at both ends of the lower chord, and the second node plates are connected to the first node plates one by one.

[0014] Further, the first node plate is a first square-circle joint, the square portion of the first square-circle joint is used to connect the column, and the cylindrical portion of the first square-circle joint is connected to the lower end of the side rod;

[0015] Two third node plates are respectively arranged at both ends of the upper chord, and the third node plates are connected to the upper ends of the side rods.

[0016] Furthermore, the upper and lower ends of the box-type column are respectively formed with protrusions, and the protrusions are provided with connection holes for the upper chord rod and the lower chord rod to pass through;

[0017] A fourth node plate is respectively arranged at the connection position between the connection hole and the upper chord rod and the lower chord rod, and the end of the fourth node plate extends into the connection hole to connect the upper chord rod and the lower chord rod.

[0018] Furthermore, reinforcing ribs are respectively provided at the connection positions between the connection hole and the upper chord rod and the lower chord rod.

[0019] Furthermore, the truss-type upper crossbeam of the embodiment of the present invention may also include:

[0020] Two first connecting rods, one end of each of the two first connecting rods is connected to the middle part of the upper chord rod through a first intersection line;

[0021] The box-type columns include two, and a second square-circle joint for connecting the first connecting rod is provided at a position corresponding to the first connecting rod of each box-type column, and the cylindrical part of the second square-circle joint is connected to the other end of the first connecting rod.

[0022] Furthermore, the truss-type upper crossbeam of the embodiment of the present invention may also include:

[0023] Two second connecting rods, one end of each of the two second connecting rods is connected to the middle part of the lower chord through a second intersection line;

[0024] Each of the second square-circle joints has two cylindrical connecting parts, and the two cylindrical connecting parts are respectively connected to the first connecting rod and the second connecting rod.

[0025] Furthermore, the first connecting rod and the second connecting rod are spiral steel pipes.

[0026] Furthermore, the truss-type upper crossbeam of the embodiment of the present invention may also include:

[0027] A support rod is obliquely arranged below the outer side of the box-type column, one end of the support rod is connected to the lower chord through a fifth node plate, and the other end is used to connect to the column through a third round joint.

[0028] Furthermore, the support rods include two, and the support rods are spiral steel pipes.

[0029] The above technical solution of the present invention has at least one of the following beneficial effects:

[0030] The truss-type upper cross beam according to the embodiment of the present invention comprises a truss assembly and a box-type column. The truss assembly comprises an upper chord, two side bars and a lower chord. The two side bars are obliquely arranged at both ends of the upper chord; the lower chord is arranged parallel to the upper chord, and the lower chord is used to connect the columns. The box-type column is vertically arranged, and the two ends of the box-type column are respectively connected to the upper chord and the lower chord. The side bars, upper chord and lower chord constituting the truss assembly are spiral steel pipes. Compared with the traditional box-type upper cross beam, the truss-type upper cross beam of the embodiment of the present invention can increase the beam height and bearing capacity, while reducing the windward area and wind load of the upper cross beam, which can effectively reduce the working and non-working wheel pressures of the whole machine, and has the advantages of strong bearing capacity, small wheel pressure and strong wind resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of the connection between the upper crossbeam and the column in the prior art;

[0032] Figure 2 This is a schematic diagram of the structure when the upper crossbeam and the column are connected in an embodiment of the present invention;

[0033] Figure 3 for Figure 2 A partial enlarged view of middle E;

[0034] Figure 4 for Figure 2 Schematic diagram of the cross-sectional structure in the AA direction;

[0035] Figure 5 for Figure 2 Schematic diagram of the cross-sectional structure in the middle BB direction;

[0036] Figure 6 for Figure 2 Schematic diagram of the cross-sectional structure in the CC direction;

[0037] Figure 7 for Figure 2 Schematic diagram of the cross-sectional structure in the middle DD direction;

[0038] Figure 8 It is a schematic diagram of the structure when the upper cross beam is connected to the main beam according to an embodiment of the present invention.

[0039] Reference numerals:

[0040] 100. Truss assembly; 110. Upper chord; 111. Third node plate; 120. Side bar; 130. Lower chord; 131. Second node plate; 200. Box column; 210. Protrusion; 220. Second square-round joint; 300. Fourth node plate; 400. Column; 410. First node plate; 420. Third round joint; 500. Reinforcement rib; 600. First connecting rod; 610. First intersection line; 700. Second connecting rod; 710. Second intersection line; 800. Support rod; 810. Fifth node plate; 001. Upper crossbeam; 002. Main beam. DETAILED DESCRIPTION

[0041] 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.

[0042] 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.

[0043] like Figure 1 The schematic diagram of the structure of the upper crossbeam of the prior art is shown, where both ends of the upper crossbeam 001 of the box-type structure are connected to the upper ports of the columns 400, and the upper crossbeam 001 is also connected to the beam 002. The upper crossbeam of this box-beam structure design has a relatively small bearing capacity. If the cross-section is increased, the windward area will be larger, resulting in the problem of wheel pressure of the whole machine under wind load.

[0044] Below, combined with the attached Figure 2-8 The truss-type upper cross beam according to the embodiment of the present invention is described in detail.

[0045] The truss-type upper cross beam according to the embodiment of the present invention comprises a truss assembly 100 and a box column 200. The truss assembly 100 comprises an upper chord 110, two side bars 120 and a lower chord 130. Figure 2As shown, two side rods 120 are obliquely arranged at the two ends of the upper chord rod 110, and the lower chord rod 130 is arranged parallel to the upper chord rod 110. The lower chord rod 130 is used to connect the column 400. The box column 200 is vertically arranged, and the two ends of the box column 200 are respectively connected to the upper chord rod 110 and the lower chord rod 130. Among them, the side rods 120, the upper chord rod 110 and the lower chord rod 130 that constitute the truss assembly 100 are spiral steel pipes. Compared with the traditional box-type upper cross beam, the truss upper cross beam can increase the beam height and bearing capacity, while reducing the windward area and wind load, which can effectively reduce the working and non-working wheel pressure of the whole machine, and has the advantages of strong bearing capacity, small wheel pressure and strong wind resistance.

[0046] The truss assembly 100 of the truss-type upper cross beam of the embodiment of the present invention is composed of an upper chord 110, two side rods 120 and a lower chord 130, and the upper chord 110, two side rods 120 and the lower chord 130 are spiral steel pipes, so that the truss-type upper cross beam has a strong bearing capacity, can effectively reduce the working and non-working wheel pressure of the whole machine, and has the advantages of strong bearing capacity, small wheel pressure and strong wind resistance.

[0047] Further, as an embodiment of the present invention, the truss-type upper cross beam of the embodiment of the present invention may further include two first node plates 410, at least a portion of each first node plate 410 is used to connect to the upper end surface of the column 400, and two second node plates 131 are respectively provided at both ends of the lower chord 130, and the second node plates 131 are connected to the first node plates 410 one by one. That is, Figure 3 As shown, the cross-section of the column 400 of the box-type structure is square, and the cross-section of the lower chord 130 of the spiral steel pipe structure is circular. The second node plate 131 and the first node plate 410 are connected so that the end of the lower chord 130 is connected to the upper end surface of the column 400. Using the first node plate 410 and the second node plate 131 as connecting parts has the advantages of convenient processing and assembly.

[0048] Further, the first node plate 410 is a first square-circle joint, the square portion of the first square-circle joint is used to connect the column 400, the cylindrical portion of the first square-circle joint is connected to the lower end of the side rod 120, and two third node plates 111 are respectively provided at both ends of the upper chord rod 110, and the third node plates 111 are connected to the upper ends of the side rods 120. In other words, Figure 2As shown, the square portion of the first square-circle joint matches the end section of the column 400 to connect the column 400, the cylindrical portion of the first square-circle joint matches the cross section of the lower end of the side bar 120 to connect the side bar 120, and the upper ends of the two side bars 120 are connected to the two ends of the upper chord 110 through the third node plate 111, that is, the column 400 and the lower end of the side bar 120, and the column 400 and the lower chord 130 are all connected through the first square-circle joint, that is, the first square-circle joint can simultaneously connect the column 400 to the lower end of the side bar 120 and the two ends of the lower chord 130, respectively, and the upper end of the side bar 120 is connected to the upper chord 110 through the third node plate 111. In other words, as Figure 2 As shown, the lower chord 130, the two side bars 120 and the upper chord 110 form a truss structure, and further, the truss structure is connected with two columns 400 to form an arch structure. The arch structure can effectively transfer the load of the beam to the columns 400, further increasing the rigidity and bearing capacity of the quay crane.

[0049] Furthermore, the upper and lower ends of the box column 200 are respectively formed with protrusions 210, and the protrusions 210 are provided with connection holes for the upper chord rod 110 and the lower chord rod 130 to pass through; a fourth node plate 300 is respectively provided at the connection position between the connection hole and the upper chord rod 110 and the lower chord rod 130, and the end of the fourth node plate 300 extends into the connection hole to connect the upper chord rod 110 and the lower chord rod 130. In other words, if Figure 6-7 As shown, a fourth node plate 300 is provided at the connection position between the upper chord 110 and the connection hole, and a fourth node plate 300 is provided at the connection position between the lower chord 130 and the connection hole. The upper chord 110 and the lower chord 130 are inserted into the connection hole of the box column 200, and the box column 200 is connected to the upper chord 110 and the lower chord 130 through the fourth node plate 300. Figure 2 As shown, for a truss-type upper cross beam provided with two box-type columns 200, one end of the upper chord 110 passes through the connection hole at the upper end of the box-type column 200 in sequence, and correspondingly, as shown in FIG. Figure 5 As shown, two fourth node plates 300 are arranged at the corresponding positions of the connection positions of the upper chord rod 110; one end of the lower chord rod 130 passes through the connection hole at the lower end of the box column 200 in sequence, and correspondingly, as shown in FIG. Figure 4 As shown, two fourth node plates 300 are arranged at positions corresponding to the connection positions of the lower chord 130. The fourth node plates 300 can further improve the reliability of the connection between the box column 200 and the upper chord 110 and the lower chord 130, and the protrusions 210 can avoid reducing the strength of both ends of the box column 200 due to the opening of the connection holes, play a role of reinforcement, and further improve the reliability of the connection between the box column 200 and the upper chord 110 and the lower chord 130.

[0050] Furthermore, reinforcing ribs 500 are provided at the connection positions between the connection hole and the upper chord rod 110 and the lower chord rod 130. Figure 7 As shown, reinforcing ribs 500 are provided at the connection positions between the upper chord 110 and the box column 200 , and between the lower chord 130 and the box column 200 . The reinforcing ribs 500 can further improve the reliability of the connection between the box column 200 and the upper chord 110 and the lower chord 130 .

[0051] In addition, if Figure 8 As shown, the lower end of the box column 200 is used to connect to the beam 002, which has the advantage of convenient assembly.

[0052] Further, as another embodiment of the present invention, the truss-type upper cross beam of the embodiment of the present invention may also include two first connecting rods 600, one end of each of the two first connecting rods 600 is connected to the middle of the upper chord 110 through the first intersection line 610; the box-type column 200 includes two, each box-type column 200 is provided with a second square-round joint 220 for connecting the first connecting rod 600 at a position corresponding to the first connecting rod 600, and the cylindrical connection part of the second square-round joint 220 is connected to the other end of the first connecting rod 600. That is to say, Figure 2 As shown, one end of the first connecting rod 600 (corresponding to Figure 2 The upper end of the upper chord rod 110 is connected to the upper chord rod 110 through the first intersection line 610, and the other end (corresponding to Figure 2 The lower end of the first connecting rod 600 is connected to the cylindrical connecting part of the second square-round joint 220, and the square connecting part of the second square-round joint 220 is connected to the box column 200. That is to say, two first connecting rods 600 are arranged between the box column 200 and the upper chord 110. The first connecting rods 600 can further improve the connection reliability between the box column 200 and the upper chord 110, thereby further improving the bearing capacity of the truss-type upper beam.

[0053] Furthermore, the truss-type upper cross beam of the embodiment of the present invention may also include two second connecting rods 700, one end of each of the two second connecting rods 700 is connected to the middle of the lower chord 130 through the second intersection line 710; each second square-circular joint 220 has two cylindrical connecting parts, and the two cylindrical connecting parts are respectively connected to the first connecting rod 600 and the second connecting rod 700. That is, one end of the second connecting rod 700 (corresponding to Figure 2 The lower end of the lower chord 130 is connected to the lower chord 130 through the second intersection line 710, and the other end (corresponding to Figure 2 The upper end of the second square round joint 220 is connected to one of the cylindrical connecting parts (corresponding to Figure 2 The cylindrical connection portion with the opening facing downward) is connected to the box column 200, and the other cylindrical connection portion of the second square round joint 220 (corresponding to Figure 2The cylindrical connecting portion with the opening facing upward is used to connect the other end of the upper chord rod 110 (corresponding to Figure 2 That is, two second connecting rods 700 are arranged between the box column 200 and the lower chord 130. The second connecting rods 700 can further improve the connection reliability between the box column 200 and the lower chord 130, thereby further improving the bearing capacity of the truss-type upper cross beam.

[0054] Furthermore, the first connecting rod 600 and the second connecting rod 700 are spiral steel pipes. Compared with the connecting rod of the box girder structure, the first connecting rod 600 and the second connecting rod 700 of the spiral steel pipe structure have higher mechanical strength and a smaller windward area, which can reduce the collected wheel pressure under wind load.

[0055] Further, as another embodiment of the present invention, the truss-type upper cross beam of the embodiment of the present invention may further include a support rod 800, which is obliquely arranged at the lower outer side of the box column 200, and one end of the support rod 800 is connected to the lower chord 130 through the fifth node plate 810 and the other end is connected to the column 400 through the third circular joint 420. That is, one side of the fifth node plate 810 (corresponding to Figure 2 The upper end of the lower chord 130 is connected to the other side (corresponding to Figure 2 The lower end of the third-party circular joint 420 is connected to the upper end of the support rod 800, the square part of the third-party circular joint 420 is connected to the column 400, and the cylindrical part of the third-party circular joint 420 is connected to the other end of the support rod 800. In other words, the support rod 800 is arranged between the lower chord 130 and the column 400 at the lower outer side of the box column 200, and the support rod 800 can improve the connection reliability between the column 400 and the lower chord 130, thereby further improving the bearing capacity of the truss-type upper cross beam.

[0056] Further, the support rod 800 includes two, and the support rod 800 is a spiral steel pipe. That is, two support rods 800 are arranged at both sides of the lower chord 130, such as Figure 2 As shown, the lower end of the left support rod 800 (corresponding to Figure 2 The lower end of the left side of the support rod 800 is connected to the left column 400, and the upper end is connected to the left end of the lower chord rod 130; the lower end of the right support rod 800 (corresponding to Figure 2 The right lower end) is connected to the right column 400, and the upper end is connected to the right end of the lower chord 130. The support rods 800 of the two spiral steel pipe structures can further improve the connection reliability between the column 400 and the lower chord 130 and the bearing capacity of the truss-type upper beam.

[0057] 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 truss-type upper beam, include: Truss assembly, the truss assembly includes: chord rod; Two side bars, the two side bars are obliquely arranged at both ends of the upper chord bar; A lower chord rod, which is arranged parallel to the upper chord rod and is used to connect the columns; Box column, the box column is vertically arranged, and the two ends of the box column are respectively connected to the upper chord and the lower chord; Two first node plates, at least a portion of each first node plate is used to connect to the upper end surface of the column, two second node plates are respectively provided at both ends of the lower chord, the second node plates are connected to the first node plates one by one, the first node plates are first square-round joints, the square portion of the first square-round joint is used to connect to the column, and the cylindrical portion of the first square-round joint is connected to the lower end of the side rod; Two first connecting rods, one end of each of the two first connecting rods is connected to the middle of the upper chord through a first intersection line; The box-type columns include two, and a second square-circle joint for connecting the first connecting rod is arranged at a position corresponding to the first connecting rod of each box-type column, and the cylinder part of the second square-circle joint is connected to the other end of the first connecting rod; Two third node plates are respectively arranged at both ends of the upper chord rod, and the third node plates are connected to the upper ends of the side rods. The first node plate is a first square-circle joint, and the square part of the first square-circle joint is used to connect the column, and the cylindrical part of the first square-circle joint is connected to the lower end of the side rod. Two third node plates are respectively arranged at both ends of the upper chord rod, and the third node plates are connected to the upper ends of the side rods. Among them, the side rods, upper chord rods and lower chord rods are spiral steel pipes, and the upper and lower ends of the box-type column are respectively formed with protrusions, and the protrusions are provided with connecting holes for the upper chord rod and the lower chord rod to pass through; a fourth node plate is respectively provided at the connecting position of the connecting hole and the upper chord rod and the lower chord rod, and the end of the fourth node plate extends into the connecting hole to connect the upper chord rod and the lower chord rod, and reinforcing ribs are also respectively provided at the connecting position of the connecting hole and the upper chord rod and the lower chord rod.

2. The truss-type upper cross beam according to claim 1, It is characterized in that Also includes: Two second connecting rods, one end of each of the two second connecting rods is connected to the middle part of the lower chord through a second intersection line; Each of the second square-circle joints has two cylindrical connecting parts, and the two cylindrical connecting parts are respectively connected to the first connecting rod and the second connecting rod.

3. The truss-type upper cross beam according to claim 2, It is characterized in that The first connecting rod and the second connecting rod are spiral steel pipes.

4. The truss-type upper cross beam according to claim 1, It is characterized in that Also includes: A support rod is obliquely arranged below the outer side of the box-type column, one end of the support rod is connected to the lower chord through a fifth node plate, and the other end is used to connect to the column through a third round joint.

5. The truss-type upper cross beam according to claim 4, It is characterized in that The support rods include two, and the support rods are spiral steel pipes.

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