A variable-section beam segment matching piece and precise installation method thereof

Abstract

The present invention provides a variable cross-section beam segment matching part and a precise installation method thereof, belonging to the technical field of beam segment matching parts. The problem of long construction period of beam segment matching parts is solved. Its technical solution is: a variable cross-section beam segment matching part, composed of a middle transverse support rod, a vertical support rod, a lateral detachable support rod, a lateral fixed support rod, an upper connector, a web connecting plate, a top plate connecting plate, and an upper transverse support rod; the precise installation method includes the following steps: S1, arranging a port matching tooling support frame; S2, installing a port matching tooling; S3, adjusting the beam segment port; S4, checking the port size; S5, installing the beam segment matching part. The beneficial effect of the present invention is: the present invention ensures the port size of adjacent beam segments through the port matching tooling, and precise matching of adjacent beam segments can be achieved without moving the beam segments and arranging an assembly site for trial assembly.

Description

Technical Field

[0001] The present invention relates to the technical field of variable-section beam segment matching parts and installation methods, and in particular to a variable-section beam segment matching part and a beam segment matching part and a precise installation method thereof. Background Art

[0002] Traditionally, the trial assembly of variable-section beam segments requires simulating the overall linearity of the bridge beam segments. Two or more beam segments are hoisted and placed on a trial assembly rig to match the rings, adjusting for misalignment. During prefabrication of individual beam segments, a 300mm gap must be left unwelded at the ends of the rings to allow for misalignment adjustments. This method of ring matching results in a lengthy trial assembly cycle, high costs for establishing the rigs for the desired cross-section dimensions, and significant site resource investment during the trial assembly of multiple beam segments, which can lead to wasteful site resources.

[0003] How to solve the above technical problems is the subject faced by the present invention. Summary of the Invention

[0004] The purpose of the present invention is to provide a variable-section beam segment matching part and a precise installation method thereof. The present invention can ensure the port size of adjacent beam segments through port matching tooling, and can implement precise matching of adjacent beam segments without moving the beam segments or arranging an assembly site for trial assembly, thereby reducing the construction period, reducing site investment, and realizing the function of integrated manufacturing and assembly.

[0005] The cross bar is connected with the support of the lifting link, and the cross bar is connected with the support of the lifting link, and the cross bar is connected with the support of the lifting link.

[0006] Furthermore, each of the web connecting plates is vertically connected to a lower matching connecting plate, and each of the lower matching connecting plates is connected to a bottom plate connecting plate on its lower surface, and one of the end faces of the lower matching connecting plates is connected to a lower fixed transverse support rod, and the lower fixed transverse support rod is flush with one of the bottom plate connecting plates, and the lower fixed transverse support rods on both sides are connected to the lower detachable transverse support rods through connecting flanges and connecting bolts and nuts, and each of the top plate connecting plates is vertically connected to an upper matching connecting plate A side, and the upper matching connecting plate A side is aligned with the upper connector, and the upper matching connecting plate A side is parallel to the upper matching connecting plate B side, and an upper matching connecting plate sealing plate is connected between the upper matching connecting plate B side and the upper matching connecting plate A side.

[0007] Furthermore, the web connecting plate, top plate connecting plate, bottom plate connecting plate and the corresponding top surface, bottom surface and web of the beam section have the same thickness to ensure that the inner and outer ports are flush and to ensure that they fit with the end surface of the beam section in the later stage.

[0008] Furthermore, the web connecting plates, top and bottom connecting plates, are installed at angles consistent with the angles of the beam segment webs and top and bottom plates. Using the angles of the web connecting plates, top and bottom connecting plates on the fixture as a reference, the beam segment ports are adjusted according to the fixture's reference, keeping misalignment within 1mm. When the two beam segments are actually connected after these adjustments, the port misalignment is kept within 2mm.

[0009] Furthermore, the inclination angles of the webs and top and bottom plates of all beam sections are consistent, and only the length of the webs changes. The lateral detachable support rods and the lateral fixed support rods are bolted together. When the web length changes, it is achieved by adjusting the length of the lateral detachable support rods and adjusting the ports to match the length of the webs on the outside of the tooling; the lower fixed transverse support rods and the lower detachable transverse support rods are bolted together. By adjusting the length of the detachable transverse support rods and adjusting the ports to match the overall width of the lower opening of the tooling, the tooling can be quickly adjusted to other cross-sectional sizes. A set of tooling can match beam sections with multiple cross-sections.

[0010] Furthermore, after the port matching tooling with lifting ears installed on both sides of the upper horizontal support rod is manufactured, the tooling can be hoisted by hoisting the entire tooling to the matching port through the lifting ears.

[0011] Furthermore, the port matching tooling web and bottom plate side supports are both bolted together, and the tooling can be disassembled when not in use to facilitate tooling management.

[0012] In order to better achieve the above-mentioned purpose of the invention, the present invention also provides a method for accurately installing a variable-section beam segment matching piece, which specifically includes the following steps:

[0013] S1. Arrange the support frame of the port matching fixture. Arrange the support frame according to the beam section port reference line and the width of the beam section port matching fixture, and arrange the supporting teeth on both sides of the beam section port matching fixture. The height difference between the two supporting teeth is controlled within ±0.5mm;

[0014] S2. Install the port matching tooling. Before installing the matching tooling, draw a reference line on the port matching tooling. When installing the port matching tooling, ensure that the positioning error of the reference line of the port matching tooling and the size L1 of the trimming line of the top, bottom and web ports of the beam section is controlled within 1mm.

[0015] S3. Adjust the end of the beam section. After the end matching tooling is installed, use a ruler and a check block to check the distance L between the beam section and the ruler, and adjust the misalignment by calibrating. The gap "L" should be controlled within ±1mm. After the adjustment is completed, weld the reserved weld.

[0016] S4. Check the port size and reserve the weld seam. After welding, check the port's forming size to ensure that the tooling mismatch between the top and bottom webs of the beam section and the port is controlled within 1mm. If it does not meet the requirements, further adjustments are required.

[0017] S5. Install the beam segment matching parts. Draw the positioning reference line for the beam segment matching parts according to the beam segment end reference line. The positioning line error should be controlled within 1mm. When installing the beam segment matching parts, use a process axis to simultaneously pass through the positioning hole of the end matching tooling and the hole group of the matching parts to ensure that the inclination of the beam segment matching parts is consistent with the overall slope of the beam segment.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The present invention uses the port matching tooling as the adjustment reference. During the matching process, the positioning tooling is adjusted based on the beam segment reference line, and the beam segment size is further adjusted and controlled. This can ensure the port sizes of adjacent beam segments, achieve accurate matching of adjacent beam segments without adjusting the position or shifting the beam segments, and without setting up an assembly site for trial assembly. This shortens the construction period, reduces site investment, and realizes the function of integrated manufacturing and assembly.

[0020] 2. The port matching tooling of the present invention is light in weight and easy to transport, hoist and adjust. The port matching tooling is bolted and can be quickly adjusted to other cross-sectional sizes according to the cross-sectional size of the beam segment. A set of tooling can be used for beam segments with multiple cross-sections.

[0021] 3. The matching parts of the present invention are installed and positioned using the transfer holes (different positioning holes) on the tooling. The transfer holes of the left end beam and the right end beam are located at different positions, so that the matching holes for merging the beam section ports are in a unified straight line, thereby achieving precise installation of the matching parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0023] Figure 1 This is the elevation view of the port matching tooling of the present invention.

[0024] Figure 2 This is the B-direction view of the port matching tooling of the present invention.

[0025] Figure 3 This is a B-direction view of the port matching tooling of the present invention.

[0026] Figure 4 This is a partial enlarged view of the present invention I.

[0027] Figure 5 This is a schematic diagram of the matching connecting plate of the present invention.

[0028] Figure 6 This is a schematic diagram of the layout of the support frame of the port matching tooling of the present invention.

[0029] Figure 7 This is a schematic diagram of the installation of the port matching tooling of the present invention.

[0030] Figure 8 This is a schematic diagram of the adjustment of the port matching tooling of the present invention.

[0031] Figure 9 This is the port size inspection diagram of the present invention.

[0032] Figure 10 This is a schematic diagram of the installation of the beam segment matching parts of the present invention.

[0033] Among them, the figure markings are: 11-middle transverse support rod, 12-vertical support rod, 13-lateral detachable support rod, 14-lateral fixed support rod, 15-upper connector, 16-web connecting plate, 17-top plate connecting plate, 18-upper transverse support rod, 19-lifting lug, 20-upper matching connecting plate B side, 21-lower matching connecting plate, 22-bottom plate connecting plate, 23-lower fixed transverse support rod, 24-lower detachable transverse support rod, 25-upper matching connecting plate A side, 26-upper matching connecting plate sealing plate, 31-connecting flange, 32-connecting bolts and nuts. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. Of course, the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0035] Example 1

[0036] See also Figures 1 to 10 The present invention provides a technical solution as follows:

[0037] 1. Beam section allowance cutting

[0038] During beam segment fabrication, a 300mm weld seam is reserved between the web and top and bottom plates to allow for later adjustment of the beam segment ends. After beam segment fabrication, a reference line is drawn and the beam segment dimensions are measured. The beam segment is trimmed to maintain a total length within ±2mm. To ensure the proper fit between the beam segment ends and the matching tooling, portable machining equipment is used to trim the remaining margins. This ensures a smoothness of 1mm / m at the beam segment ends, with an overall flatness of no more than 3mm.

[0039] 2. Port matching tooling production

[0040] like Figure 1-Figure 5 As shown in the figure, this port matching tooling is made symmetrically on the left and right, and is mainly composed of a middle transverse support rod 11, a vertical support rod 12, a lateral detachable support rod 13, a lateral fixed support rod 14, an upper connector 15, a web connecting plate 16, a top plate connecting plate 17, an upper transverse support rod 18, a lifting lug 19, an upper matching connecting plate B side 20, a lower matching connecting plate 21, a bottom plate connecting plate 22, a lower fixed transverse support rod 23, a lower detachable transverse support rod 24, an upper matching connecting plate A side 25, an upper matching connecting plate sealing plate 26, a connecting flange 31, and connecting bolts and nuts 32.

[0041] The vertical support rod 12 is vertically arranged at about 1 / 3 of the distance from the end of the transverse support rod 11; the lateral detachable support rod 13 is centrally arranged at the end of the transverse support rod 11; the lateral fixed support rod 14 is arranged at the two side ends of the lateral detachable support rod 13 through the connecting flange 31 and the connecting bolt nut 32; the upper connector 15 is arranged at the end of the upper lateral fixed support rod 14; the web connecting plate 16 is vertically arranged on the outside of the upper connector 15; the top plate connecting plate 17 is vertically arranged on the upper side of the upper connector 15; the upper transverse support rod 18 is arranged in the middle of the upper connectors 15 on both sides and is flush with the lower surface of the top plate connecting plates 17 on both sides; the lifting lug 19 is arranged at about 1 / 6 of the end of the upper transverse support rod 18; the upper matching connecting plate B side 20 is vertically arranged on the top plate connecting plate 17 The upper side is aligned with the upper connector 15; the lower matching connecting plate 21 is vertically arranged on the lower web connecting plate 16, and the lower mouth is ensured to be flush; the bottom plate connecting plate 22 is vertically arranged on the lower surface of the lower matching connecting plate 21; the lower fixed transverse support rod 23 is arranged at the end of the lower matching connecting plate 21 and is flush with the bottom plate connecting plate 22; the lower detachable transverse support rod 24 is arranged in the middle of the fixed transverse support rods 23 on both sides through the connecting flange 31 and the connecting bolts and nuts 32; the upper matching connecting plate A side 25 is vertically arranged on the upper side of the top plate connecting plate 17 and aligned with the upper connector 15, and parallel to the upper matching connecting plate B side 20; the upper matching connecting plate sealing plate 26 is arranged in the middle of the upper matching connecting plate B side 20 and the upper matching connecting plate A side 25, and keeps the ends flush.

[0042] Furthermore, the web connecting plate 16, the top plate connecting plate 17, the bottom plate connecting plate 22 and the corresponding top surface, bottom surface and web thickness of the beam section are consistent to ensure that the inner and outer ports are flush.

[0043] Furthermore, the sides of the web connecting plate 16, the top plate connecting plate 17, and the bottom plate connecting plate 22 need to be milled as a whole using a milling machine, and the overall flatness is controlled within 1mm / m and does not exceed 3mm overall to ensure that they fit with the cross-section of the beam section in the later stage.

[0044] Furthermore, the inclination angles of the web connecting plate 16, the top plate connecting plate 17 and the bottom plate connecting plate 22 during installation are consistent with the inclination angles of the web of the beam section and the top and bottom plates.

[0045] Furthermore, the inclination angles of the webs and top and bottom plates of all beam sections are consistent, and only the length of the webs changes. The lateral detachable support rods 13 and the lateral fixed support rods 14 are bolted together, and the change in web length is achieved by adjusting the length of the lateral detachable support rods 13 and adjusting the port to match the length of the web on the outside of the tooling.

[0046] Furthermore, due to the difference in width dimensions at the bottom of each beam section, the lower fixed transverse support rod 23 and the lower detachable transverse support rod 24 are bolted together. By adjusting the length of the lower detachable transverse support rod 24, the port is adjusted to match the overall width of the lower opening of the tooling.

[0047] Furthermore, after the port matching tooling for installing the lifting ears 19 on both sides of the upper transverse support rod 18 is manufactured, the entire part is lifted to the matching port through the lifting ears.

[0048] Furthermore, the port matching tooling web and bottom plate side supports are both bolted together, and the tooling can be disassembled when not in use to facilitate tooling management.

[0049] 3. Arrange port matching tooling support frame

[0050] The supporting frame is arranged according to the beam section port reference line and the width of the beam section port matching tooling, and the supporting teeth are arranged on both sides of the beam section port matching tooling. The height difference between the two supporting teeth is controlled within ±0.5mm.

[0051] 4. Install port matching tooling

[0052] Before installing the matching tooling, a reference line must be drawn on the port matching tooling. When installing the port matching tooling, it is necessary to ensure that the L1 positioning error between the reference line of the port matching tooling and the size of the margin trimming line of the top, bottom and web ports of the beam section is controlled within 1mm.

[0053] 5. Beam section port adjustment

[0054] After the port matching fixture is installed, use a straightedge and a check block to check the distance L between the beam segment and the straightedge. Adjust the gap "L" to within ±1mm. After adjustment, allow a 2mm shrinkage allowance for welding the weld seam.

[0055] 6. Check port size

[0056] After the reserved weld is completed, check the forming size of the port to ensure that the tooling error between the top and bottom webs of the beam section and the port is controlled within 1mm. If it does not meet the requirements, further adjustments are required.

[0057] 7. Install beam section matching parts

[0058] The positioning reference line for the beam segment matching component is drawn along the beam segment end reference line, with the positioning line error controlled within 1mm. When installing the beam segment matching component, use a process shaft with a diameter 0.5mm smaller than the reserved hole diameter. Pass it through the positioning hole of the end matching tooling and the hole group of the matching component to ensure that the inclination of the beam segment matching component is consistent with the overall slope of the beam segment.

[0059] Example 2

[0060] On the basis of Example 1, when marking the hole groups 20 on the upper matching connection plate B side and 25 on the upper matching connection plate A side, a three-dimensional line drawing machine is used to draw the sizes of the positioning holes L1 to L8 according to the linear proportion of the beam segment;

[0061] The sides of the web connecting plate 16, the top plate connecting plate 17 and the bottom plate connecting plate 22 need to be milled using a milling machine. The overall flatness is controlled within 1mm / m and does not exceed 3mm overall to ensure that they fit the beam section in the later stage.

[0062] Example 3

[0063] Based on Example 2, after the port matching tooling is completed, the diagonal dimensions L9 and L10 must be controlled within ±1 mm. |L9-L10|≤3 mm.

[0064] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A variable cross-section beam segment matching part, characterized in that: The invention comprises a transverse support rod (11), wherein one third of the end of the transverse support rod (11) is connected to a vertical support rod (12), the center of the end of the transverse support rod (11) is connected to a lateral detachable support rod (13), the end surfaces of the lateral detachable support rod (13) are connected to lateral fixed support rods (14) through flanges (31) and connecting bolts and nuts (32), and the two ends of the lateral fixed support rod (14) are respectively connected to an upper connector (15), and the outer side of each upper connector (15) is connected to a web connecting plate (16), and each The upper side of each of the upper connectors (15) is connected to a top plate connecting plate (17), an upper transverse support rod (18) is connected at the center between the two upper connectors (15), the upper transverse support rod (18) is flush with the lower surfaces of the two top plate connecting plates (17), and both ends of the upper transverse support rod (18) are connected to a lifting lug (19), and the upper side of each of the top plate connecting plates (17) is vertically connected to an upper matching connecting plate B side (20), and the upper matching connecting plate B side (20) is aligned with the upper connector (15); Each of the web connecting plates (16) is vertically connected to a lower matching connecting plate (21), and the lower surface of each of the lower matching connecting plates (21) is connected to a bottom plate connecting plate (22), and the end surface of one of the lower matching connecting plates (21) is connected to a lower fixed transverse support rod (23), and the lower fixed transverse support rod (23) and one of the bottom plate connecting plates (22) are flush with each other, and the lower fixed transverse support rods (23) on both sides are connected by connecting flanges (31) and connecting bolts. The nut (32) is connected to the lower detachable transverse support rod (24), and each of the top plate connecting plates (17) is vertically connected to an upper matching connecting plate A side (25), the upper matching connecting plate A side (25) is aligned with the upper connecting member (15), the upper matching connecting plate A side (25) and the upper matching connecting plate B side (20) are parallel, and an upper matching connecting plate sealing plate (26) is connected between the upper matching connecting plate B side (20) and the upper matching connecting plate A side (25); The webs of all beam sections have the same inclination angle as the top and bottom plates, the lateral detachable support rods (13) and the lateral fixed support rods (14) are bolted together, and the length of the webs is changed by adjusting the length of the lateral detachable support rods (13) and adjusting the port to match the length of the webs on the outside of the tooling; The lower fixed transverse support rod (23) and the lower detachable transverse support rod (24) are bolted together, and the length of the detachable transverse support rod (24) is adjusted from the bottom to adjust the port to match the overall width of the lower opening of the tooling; After the port matching tooling with the lifting lugs (19) installed on both sides of the upper transverse support rod (18) is manufactured, the entire tooling is hoisted to the matching port through the lifting lugs.

2. The variable cross-section beam segment matching component according to claim 1, characterized in that: The web connecting plate (16), the top plate connecting plate (17), and the bottom plate connecting plate (22) have the same thickness as the corresponding top surface, bottom surface, and web of the beam section.

3. The variable cross-section beam segment matching component according to claim 1, characterized in that: The inclination angles of the web connecting plate (16), the top plate connecting plate (17), and the bottom plate connecting plate (22) during installation are consistent with the inclination angles of the web of the beam section and the top and bottom plates.

4. The variable cross-section beam segment matching component according to claim 1, characterized in that: The port matching tooling web and bottom plate side supports are both bolted.

5. The variable cross-section beam segment matching component according to any one of claims 1 to 4 further comprises a method for accurately installing the variable cross-section beam segment matching component, comprising the following steps: S1. Arrange the support frame of the port matching fixture. Arrange the support frame according to the beam section port reference line and the width of the beam section port matching fixture, and arrange the supporting teeth on both sides of the beam section port matching fixture. The height difference between the two supporting teeth is controlled within ±0.5mm; S2. Install the port matching tooling. Draw a reference line on the port matching tooling before installing the matching tooling. When installing the port matching tooling, ensure that the positioning error of the reference line of the port matching tooling and the size L1 of the trimming line of the top, bottom and web ports of the beam section is controlled within 1mm. S3. Adjust the end of the beam segment. After the end matching fixture is installed, use a straightedge and a check block to check the distance L between the beam segment and the straightedge, and adjust the misalignment by calibrating. The gap "L" should be controlled within ±1mm. After the adjustment is completed, weld the reserved weld. S4. Check the port size and reserve the weld seam. After welding, check the port's forming size to ensure that the tooling mismatch between the top and bottom webs of the beam section and the port is controlled within 1mm. If it does not meet the requirements, further adjustments are required. S5. Install the beam section matching parts. Draw the positioning reference line of the beam section matching parts according to the beam section port reference line. The positioning line error is controlled within 1mm. When installing the beam section matching parts, use the process axis to pass through the positioning holes of the port matching tooling and the hole group of the matching parts at the same time to ensure that the inclination of the beam section matching parts is consistent with the overall slope of the beam section.

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