CN109457611B - Main cable saddle with welded back cable structure - Google Patents

Main cable saddle with welded back cable structure Download PDF

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Publication number
CN109457611B
CN109457611B CN201811505852.0A CN201811505852A CN109457611B CN 109457611 B CN109457611 B CN 109457611B CN 201811505852 A CN201811505852 A CN 201811505852A CN 109457611 B CN109457611 B CN 109457611B
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China
Prior art keywords
saddle
cable
groove
support
rope
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CN109457611A (en
Inventor
陈龙
黄安明
王炳德
李江伟
张保忠
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Deyang Tengen Heavy Industry Co ltd
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Deyang Tengen Heavy Industry Co ltd
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    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00Structural or constructional details of bridges
    • E01D19/14Towers; Anchors ; Connection of cables to bridge parts; Saddle supports
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D11/00Suspension or cable-stayed bridges
    • E01D11/02Suspension bridges

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Bridges Or Land Bridges (AREA)
  • Prostheses (AREA)

Abstract

The invention discloses a main cable saddle with a welded back cable structure, which comprises a cable saddle body and back cable anchors, wherein the cable saddle body and the back cable anchors are in a split structure, and back cable supports on two sides of the back cable anchors are respectively combined and fixed on corresponding saddle groove wall plates on two sides of the cable saddle body in a welding mode. Aiming at the particularity of the main cable saddle of the back cable structure, the cable saddle body and the back cable anchoring body are formed by the split structure respectively, and then the split structure and the back cable anchoring body are integrally assembled and formed in a welding combination mode, so that the structural strength and the function of the main cable saddle of the back cable structure are ensured, the influence of the back cable anchoring body on the processing process of the main cable saddle body is effectively eliminated, the main cable saddle of the back cable structure can be easily, conveniently and efficiently processed and formed, the processing quality is reliable, the technical requirement of the back cable type suspension bridge is met, and the main cable saddle is economical and practical.

Description

Main cable saddle with welded back cable structure
Technical Field
The invention relates to a cable saddle of a suspension bridge, in particular to a main cable saddle of a welded back cable structure.
Background
In the design of the suspension bridge, the horizontal resultant force of the main cable at the top of the cable tower is required to be zero under the action of a permanent load, so that the stress conditions of the side span part main cable and the middle span part main cable are calculated. In general, the calculated stress of the main cable at the side span part is unequal to that of the main cable at the middle span part, and the calculated stress is quite different from the calculated stress of the main cable at the middle span part; however, for the design of the main cable, whether the main cable is positioned at the side span part or the middle span part, the safety coefficient is consistent, which necessarily leads to the need of a larger stress area on the side with larger stress of the main cable, and when the stress of the main cable at the side span part is larger than that of the main cable at the middle span part, the cable strand anchored on the corresponding main cable saddle needs to be added at the side span part, and the cable strand forms the back cable of the suspension bridge.
Referring to fig. 1, currently, a main cable saddle for a back cable suspension bridge mainly comprises an integral saddle body 1 and a back cable anchor 2 positioned at the top of the saddle body 1, wherein the back cable hanger of the back cable anchor 2 faces to a side span part in a saddle groove, and the back cable hanger of the back cable anchor 2 is used as a back cable for connecting the suspension bridge. The main cable saddle with the back cable structure is characterized in that due to the integrated forming structure of the back cable anchoring body and the cable saddle body and the protruding structure of the back cable anchoring body at the top of the cable saddle body, the vertical distance between the top of the back cable anchoring body and the saddle groove of the cable saddle body is larger, generally reaching 1.5-2.1 m, the processing difficulty of the cable saddle body is increased, particularly the processing of the bottom surface of the saddle groove is more obvious, the difficulty can be overcome through the extension of a main shaft of a machine tool and the extension of a cutter rod, but the rigidity of the main shaft and/or the cutter rod is poor due to the extension and the overhanging processing mode, so that vibration, even larger vibration, the processing quality is difficult to ensure, and the formed main cable saddle is low in qualification rate and high in processing cost.
Disclosure of Invention
The technical purpose of the invention is that: aiming at the particularity of the main cable saddle with the back cable structure and the defects of the existing main cable saddle technology with the integrated back cable structure, the main cable saddle with the back cable structure, which is convenient to process and reliable in processing quality, is provided.
The technical purpose of the invention is realized by the following technical scheme: the utility model provides a main cable saddle of welded back of body cable structure, includes the cable saddle body and the back of body cable anchor body of split structure, the both sides back of the body cable anchor body is carried the cable support and is fixed on the corresponding saddle groove wallboard of cable saddle body both sides with the combination of welding mode respectively.
Each side of the back cable support of the back cable anchoring body is provided with a top surface welding groove matched with the profile line of the top of the corresponding saddle groove wall plate of the cable saddle body, one side of the top surface welding port of the back cable support is provided with a support lug plate extending downwards, and at least one side edge and the bottom edge of the support lug plate are respectively provided with a welding groove; correspondingly, limit grooves matched with the corresponding back cable support bottom support lug plates are formed in the saddle groove wall plates on each side of the cable saddle body; during assembly, the support lug plates of each side of the back cable support of the back cable anchoring body are embedded in the limiting grooves on the corresponding saddle groove wall plates of the cable saddle body, the welding grooves on the top surfaces of the back cable support and the top surfaces of the corresponding saddle groove wall plates are welded together to form groove welding seams, and the welding grooves on at least one side edge and the bottom edge of the support lug plates are respectively welded together corresponding to the side edge surfaces and the bottom edge surfaces of the corresponding limiting grooves to form groove welding seams.
As one of the preferable schemes, the cable saddle body is mainly formed by locking a plurality of locking bolt pairs on a side span side and a middle span side warp middle division joint surface of a split structure, a limiting groove on a saddle groove wall plate on each side of the cable saddle body is positioned on the middle span side of the cable saddle body, and a welding seam between the back cable support and a saddle groove wall plate corresponding to the cable saddle body is positioned on the middle span side of the cable saddle body. Further, the top of each side saddle groove wallboard of the cable saddle body is provided with a limiting structure for supporting and limiting the front end face of the support corresponding to the back cable support, and the front end face of the support corresponding to the back cable support is in surface contact fit with the limiting structure of the cable saddle body corresponding to the top of the saddle groove wallboard. Still further, the limit structure at saddle cell wall board top in every side of cable saddle body is with the side of saddle body divides the faying surface to form in the side, the upper portion of side divides the faying surface has the limit terminal surface that coincides the support front end face of back of the body cable support.
As one of the preferable schemes, a downward extending support lug plate on the back rope support is positioned at the inner side of the top surface welding groove; correspondingly, the limiting groove on the saddle groove wall plate corresponding to the saddle body is positioned at the inner side of the saddle groove wall plate.
As one of the preferable schemes, the back rope anchoring body mainly comprises two side back rope supports and an anchor beam which are of split structures, two ends of the anchor beam are respectively fixed on the rear end faces of the supports of the two side back rope supports through a plurality of locking bolt pairs, and back rope hangers extending to the side span sides are arranged on the anchor beam between the two side back rope supports.
The beneficial technical effects of the invention are as follows:
1. Aiming at the particularity of the main cable saddle of the back cable structure, the cable saddle body and the back cable anchoring body are formed respectively in a split structure, and then the main cable saddle body and the back cable anchoring body are integrally assembled and formed in a welding combination mode, so that the structural strength and the function of the main cable saddle of the back cable structure are ensured, the influence of the back cable anchoring body on the processing process of the main cable saddle body is effectively eliminated, the main cable saddle of the back cable structure can be easily, conveniently and efficiently processed and formed, the processing quality is reliable, the technical requirement of the back cable type suspension bridge is met, and the main cable saddle is economical and practical;
2. The assembly structure between the back rope support of the back rope anchoring body and the corresponding saddle groove wall plate of the saddle body can ensure that the back rope support of the back rope anchoring body can be accurately, stably and reliably positioned on the corresponding saddle groove wall plate of the saddle body, and can reliably improve the welding strength between the back rope support and the corresponding saddle groove wall plate, so that the back rope anchoring body is firmly assembled on the saddle body, the stress strength of a main saddle of the back rope structure in the use process is effectively ensured, and the stability and the reliability are good;
3. The bearing and limiting structure arranged on the saddle groove wall plate of the cable saddle body corresponds to the traction direction of the back cable anchor body, so that the welding combination structure between the saddle groove wall plate and the back cable support is matched to stably limit and support the back cable anchor body, and the stress intensity of the main cable saddle of the back cable structure in the use process is further enhanced;
4. the split structure of the cable saddle body and the split structure of the back cable anchoring body can further reduce the processing difficulty of the cable saddle, so that the processing process is easy, convenient and efficient.
Drawings
Fig. 1 is a schematic structural view of a main cable saddle with a conventional back cable structure.
Fig. 2 is a schematic structural view of the present invention.
Fig. 3 is a schematic structural view of the back cable support of fig. 2.
Fig. 4 is a side view of fig. 3.
Fig. 5 is an exploded view of the cable saddle body of fig. 2.
Fig. 6 is a schematic view showing a three-dimensional structure of the present invention shown in fig. 2.
The meaning of the symbols in the figures: 1-a cable saddle body; 11—side span side; 12—midspan side; 13-a limit groove; 14-a tie rod hole; 15-limiting end faces; 2-dorsal cable anchors; 21-a dorsal cable support; 22-anchor beam; 23-a dorsal cable hanging lug; 24-the front end face of the support; 25-welding grooves on the top surface; 26-the rear end face of the support; 27-a support lug plate; 28-a tie rod hole; 29-bottom welding groove.
Detailed Description
The invention relates to a cable saddle of a suspension bridge, in particular to a main cable saddle of a welded back cable structure, and the technical content of the main cable saddle is described in detail in a plurality of embodiments. In the embodiment 1, the details of the present invention will be described in detail with reference to fig. 2,3, 4, 5 and 6, and other embodiments do not separately draw the drawings, but the main structure of the embodiment 1 may still refer to the drawings of the embodiment 1. It is to be noted here in particular that the figures of the invention are schematic, which for the sake of clarity have simplified unnecessary details in order to avoid obscuring the technical solutions of the invention which contribute to the state of the art.
Example 1
Referring to fig. 2,3, 4, 5 and 6, the present invention includes a saddle body 1 and a back cable anchoring body 2 of a split structure.
The cable saddle body 1 is mainly formed by locking a plurality of locking bolt pairs on a middle joint surface of a side span side 11 and a middle span side 12 of a split structure. The side span side 11 and the middle span side 12 of the cable saddle body 1 are provided with through saddle grooves, two sides of each saddle groove are provided with saddle groove wall plates which are erected upwards, the top profile of each saddle groove wall plate on the side span side 11 is of an inclined surface molded line structure with a low end part and a high middle joint surface, and the top profile molded line of each saddle groove wall plate on the middle span side 12 is of an arched molded line; when the side 11 and the middle side 12 of the cable saddle body 1 are butted together by the middle joint surface, the tops of the saddle groove wall plates at the two sides of the side 11 are respectively higher than the tops of the saddle groove wall plates at the two sides of the middle side 12, and the part of the side 11 higher than the middle joint surface of the middle side 12 (namely the upper part of the middle joint surface of the side 11) is provided with a limiting end surface 15 for bearing and limiting the back cable support of the back cable anchoring body 2.
The inner side of each side saddle groove wall plate of the cable saddle body 1 is provided with a limiting groove 13 in an inward sinking mode, each side limiting groove 13 is positioned at the upper part of the saddle groove wall plate of the midspan side 12, which is close to the midspan joint surface, one side edge of the limiting groove 13 is composed of the midspan joint surface of the side span side 11, and two (one, two or three) pull rod holes 14 are arranged on the saddle groove wall plate in each side limiting groove 13 corresponding to the pull rod hole arrangement track on the whole saddle groove wall plate. Limiting grooves on the wall plates of saddle grooves on two sides of the saddle body 1 are symmetrically formed.
The back cable anchoring body 2 mainly comprises two side back cable supports 21 and an anchor beam 22 which are of split structures. The two side back rope supports 21 are formed in a bilateral symmetry structure, the two side back rope supports 21 are matched at intervals corresponding to the forming intervals of two side saddle groove wall plates of the saddle body 1, and the rear end of each side back rope support 21 is provided with a support rear end face 26 with an outward folding flange edge structure; the two ends of the anchor beam 22 are respectively fixed on the back end surfaces 26 of the supports of the two side back rope supports 21 through a plurality of locking bolt pairs, and the anchor beam 22 between the two side back rope supports 21 is provided with a back rope hanging lug 23 extending to the side span side, and the back rope hanging lug 23 is used as a back rope for connecting a suspension bridge.
Each side of the back cable support 21 of the back cable anchoring body 2 is provided with a top surface welding groove 25 matched with the profile line of the top of the corresponding saddle groove wall plate of the midspan side 12 of the cable saddle body 1, and the length of the top surface welding groove 25 is consistent with the length of the limit groove 13 on the corresponding saddle groove wall plate of the midspan side 12 of the cable saddle body 1. The inner side of the top welding groove 25 of the back cable support 21 is provided with a support lug 27 extending downwards, the outline structure of the support lug 27 is matched with the outline of the limit groove 13 on the corresponding saddle groove wall plate of the cable saddle body 1, the vertical side edge of the front side of the support lug 27 is in a plane structure, the vertical side edge of the rear side of the support lug 27 is provided with a welding groove, and the bottom edge of the support lug 27 is provided with a bottom welding groove 29; two (the number may be one, two or three) pull rod holes 28 are arranged on the support lug plate 28, and specifically, the two pull rod holes 28 on the support lug plate 27 are required to be in one-to-one correspondence with the two pull rod holes 14 on the saddle groove wall plate in the corresponding limiting groove 13. In addition, the front end of each side back cable support 21 of the back cable anchoring body 2 is provided with a support front end surface 24 which is matched with the corresponding limit end surface 15 of the side span side 11 of the cable saddle body 1. The top surface of each side of the back rope support 21 of the back rope anchoring body 2 is of an inclined surface structure, and the inclination of the inclined surface is matched with the inclination of the top surface on the corresponding saddle groove wall plate of the side span side 11 of the rope saddle body 1.
The back cable supports 21 on the two sides of the back cable anchoring body 2 are respectively assembled and fixed in the limit grooves 13 on the corresponding saddle groove wall plates on the two sides of the saddle body 1 in a welding component mode. Specifically, the support lug plates 27 of the back cable support 21 on each side of the back cable anchoring body 2 are embedded in the limiting grooves 13 on the corresponding saddle groove wall plates of the cable saddle body 1, the support front end surfaces 24 of the back cable support 21 form surface contact fit with the limiting end surfaces 15 on the tops of the corresponding saddle groove wall plates on the side span sides 11 of the cable saddle body 1, and the front vertical side edges of the support lug plates 27 form surface contact fit with the middle joint surfaces of the corresponding saddle groove wall plates on the side span sides 11; the top surface welding groove 25 of the back rope support 21 is welded with the top surface of the corresponding saddle groove wallboard to form a groove welding seam; the rear vertical side edge of the support lug plate 27 and the rear side edge surface of the corresponding limiting groove 13 are welded together to form a groove weld; the bottom welding groove 29 of the support lug plate 27 is welded with the bottom surface of the corresponding limit groove 13 to form a groove weld joint. In this way, the support lug plates 27 of the back cable support 21 on each side of the back cable anchoring body 2 form groove welding seams respectively through a plurality of edges and a plurality of edge surfaces of the limiting groove 13 on the corresponding saddle groove wall plate on the midspan side 12 of the cable saddle body 1, and are firmly welded together, and the top surface of the back cable support 21 on each side and the top surface of the corresponding saddle groove wall plate edge span side 11 are positioned on the same inclined surface, so that the integral main cable saddle structure with the back cable anchoring body shown in fig. 6 is assembled in a combined manner; of course, this welded structure does not affect the combined assembly of the side 11 and midspan 12 sides of the saddle body 1 at the mid-split joint.
Example 2
The invention comprises a saddle body and a back rope anchoring body which are in a split structure.
The cable saddle body is mainly formed by locking a plurality of locking bolt pairs on a side span side and middle span side warp middle division joint surface of a split structure. The side span side and the middle span side of the cable saddle body are provided with through saddle grooves, two sides of each saddle groove are provided with saddle groove wall plates which are upright upwards, the top profile of each saddle groove wall plate on the side span side is of an inclined plane molded line structure with a low-middle junction surface at the end part, and the top profile molded line of the saddle groove wall plate on the middle span side is of an arched molded line; when the side span side and the middle span side of the cable saddle body are butted together through the middle split joint surface, the tops of the two side saddle groove wall plates of the side span side are respectively higher than the tops of the two side saddle groove wall plates of the middle span side, and the part of the middle split joint surface of the side span side higher than the middle span side (namely the upper part of the middle split joint surface of the side span side) is provided with a limiting end surface for supporting and limiting a back cable support of the back cable anchoring body.
The inner side of each side saddle groove wallboard of the saddle body is provided with a limiting groove in an inward sinking mode, each side limiting groove is positioned on the upper part of the midspan side saddle groove wallboard, which is close to the midspan joint surface, the forming structure of the limiting groove is required to be independent of the side span side of the saddle body, and two (one, two or three) pull rod holes are arranged on each side limiting groove wallboard corresponding to the pull rod hole arrangement track on the whole saddle groove wallboard. Limiting grooves on the saddle groove wall plates at two sides of the saddle body are symmetrically formed.
The back cable anchoring body mainly comprises two side back cable supports and an anchor beam. The two side back rope supports are formed in a bilateral symmetry structure, the two side back rope supports are matched with the forming space of two side saddle groove wall plates of the rope saddle body at intervals, and the rear end of each side back rope support is provided with a support rear end face with an outward folding flange edge structure; the two ends of the anchor beam are respectively fixed on the rear end surfaces of the supports of the two-side back rope supports through a plurality of locking bolt pairs, and back rope hangers extending to the side span sides are arranged on the anchor beam between the two-side back rope supports and used as back ropes for connecting a suspension bridge.
Each side of the back rope anchor body is provided with a top surface welding groove matched with the profile line of the top of the saddle groove wall plate corresponding to the midspan side of the rope saddle body, and the length of the top surface welding groove is consistent with the length of the limit groove on the saddle groove wall plate corresponding to the midspan side of the rope saddle body. The inner side of the top surface welding groove of the back rope support is provided with a support lug plate extending downwards, the outline structure of the support lug plate is matched with the outline of a limit groove on the corresponding saddle groove wall plate of the rope saddle body, the vertical side edges of the front side and the rear side of the support lug plate are respectively provided with a welding groove structure, and the bottom edge of the support lug plate is provided with a bottom surface welding groove; two (the number can be one, two or three) pull rod holes are formed in the support lug plate, and the two pull rod holes in the support lug plate are specifically required to be in one-to-one correspondence with the two pull rod holes in the saddle groove wall plate in the corresponding limiting groove. In addition, the front end of each side of the back cable support of the back cable anchoring body is provided with a support front end surface which is matched with the side span side corresponding limit end surface of the cable saddle body. The top surface of each side of the back rope support of the back rope anchoring body is of an inclined surface structure, and the inclination of the inclined surface is matched with the inclination of the top surface on the corresponding saddle groove wall plate on the side span side of the rope saddle body.
And the two side back cable supports of the back cable anchoring body are respectively assembled and fixed in limit grooves on corresponding saddle groove wall plates on two sides of the cable saddle body in a welding component mode. Specifically, the support lug plate of each side of the back cable support of the back cable anchoring body is embedded in a limit groove on the corresponding saddle groove wall plate of the cable saddle body, and the front end surface of the support of the back cable support is in surface contact fit with the limit end surface of the top of the corresponding saddle groove wall plate on the side span side of the cable saddle body; the top surface welding groove of the back rope support is welded with the top surface of the corresponding saddle groove wallboard to form a groove welding seam; the front and rear vertical side edges of the support lug plate are respectively welded with the front and rear side edge surfaces of the corresponding limiting groove correspondingly to form a groove weld; and the bottom welding groove of the support lug plate is welded with the bottom side surface of the corresponding limit groove to form a groove welding seam. In this way, the support lug plates of the back rope supports on each side of the back rope anchor body form groove welding seams respectively through the periphery of the support lug plates and the periphery of the limit grooves on the corresponding saddle groove wall plates on the midspan side of the rope saddle body, the support lug plates are firmly welded together, the top surface of each side of the back rope support body and the top surface of the corresponding saddle groove wall plate side are positioned on the same inclined plane, and the support lug plates are assembled into an integral main rope saddle structure with the back rope anchor body; of course, this welded structure does not interfere with the combined assembly of the saddle body at the side and midspan sides through the mid-split joint.
Example 3
The invention comprises a saddle body and a back rope anchoring body which are in a split structure.
The cable saddle body is mainly formed by locking a plurality of locking bolt pairs on a side span side and middle span side warp middle division joint surface of a split structure. The side span side and the middle span side of the cable saddle body are provided with through saddle grooves, two sides of each saddle groove are provided with saddle groove wall plates which are upright upwards, the top profile of each saddle groove wall plate on the side span side is of an inclined plane molded line structure with a low-middle junction surface at the end part, and the top profile molded line of the saddle groove wall plate on the middle span side is of an arched molded line; when the side span side and the middle span side of the cable saddle body are butted together through the middle split joint surface, the tops of the two side saddle groove wall plates of the side span side are respectively higher than the tops of the two side saddle groove wall plates of the middle span side, and the part of the middle split joint surface of the side span side higher than the middle span side (namely the upper part of the middle split joint surface of the side span side) is provided with a limiting end surface for supporting and limiting a back cable support of the back cable anchoring body.
The outside of every side saddle groove wallboard of cable saddle body has offered the spacing groove with the interior mode of sinking, and every side spacing groove is in the upper portion that is close to the well junction surface of midspan side saddle cell wall board, and one side of spacing groove comprises the well junction surface of side span side, corresponds the pull rod hole on the whole saddle groove wallboard on the saddle groove wallboard in every side spacing groove and arranges the orbit and be provided with two (this quantity can be one, two or three) pull rod hole. Limiting grooves on the saddle groove wall plates at two sides of the saddle body are symmetrically formed.
The back cable anchoring body mainly comprises two side back cable supports and an anchor beam. The two side back rope supports are formed in a bilateral symmetry structure, the two side back rope supports are matched with the forming space of two side saddle groove wall plates of the rope saddle body at intervals, and the rear end of each side back rope support is provided with a support rear end face with an outward folding flange edge structure; the two ends of the anchor beam are respectively fixed on the rear end surfaces of the supports of the two-side back rope supports through a plurality of locking bolt pairs, and back rope hangers extending to the side span sides are arranged on the anchor beam between the two-side back rope supports and used as back ropes for connecting a suspension bridge.
Each side of the back rope anchor body is provided with a top surface welding groove matched with the profile line of the top of the saddle groove wall plate corresponding to the midspan side of the rope saddle body, and the length of the top surface welding groove is consistent with the length of the limit groove on the saddle groove wall plate corresponding to the midspan side of the rope saddle body. The outer side of the top surface welding groove of the back rope support is provided with a support lug plate extending downwards, the outline structure of the support lug plate is matched with the outline of a limit groove on the corresponding saddle groove wall plate of the rope saddle body, the vertical side edge of the front side of the support lug plate is of a planar structure, the vertical side edge of the rear side of the support lug plate is provided with a welding groove, and the bottom edge of the support lug plate is provided with a bottom surface welding groove; two (the number can be one, two or three) pull rod holes are formed in the support lug plate, and the two pull rod holes in the support lug plate are specifically required to be in one-to-one correspondence with the two pull rod holes in the saddle groove wall plate in the corresponding limiting groove. In addition, the front end of each side of the back cable support of the back cable anchoring body is provided with a support front end surface which is matched with the side span side corresponding limit end surface of the cable saddle body. The top surface of each side of the back rope support of the back rope anchoring body is of an inclined surface structure, and the inclination of the inclined surface is matched with the inclination of the top surface on the corresponding saddle groove wall plate on the side span side of the rope saddle body.
And the two side back cable supports of the back cable anchoring body are respectively assembled and fixed in limit grooves on corresponding saddle groove wall plates on two sides of the cable saddle body in a welding component mode. Specifically, a support lug plate of each side of the back cable support of the back cable anchoring body is embedded in a limit groove on a corresponding saddle groove wall plate of the cable saddle body, the front end surface of the support of the back cable support is in surface contact fit with the limit end surface of the top of the corresponding saddle groove wall plate on the side span side of the cable saddle body, and the front vertical side edge of the support lug plate is in surface contact fit with a middle joint surface of the corresponding saddle groove wall plate on the side span side; the top surface welding groove of the back rope support is welded with the top surface of the corresponding saddle groove wallboard to form a groove welding seam; the vertical side edge of the rear side of the support lug plate is welded with the side edge surface of the rear side of the corresponding limiting groove to form a groove weld; and the bottom welding groove of the support lug plate is welded with the bottom side surface of the corresponding limit groove to form a groove welding seam. In this way, the support lug plates of the back cable supports on each side of the back cable anchoring body form groove welding seams respectively through a plurality of edges and a plurality of edge surfaces of the limiting grooves on the corresponding saddle groove wall plates on the midspan side of the cable saddle body, the groove welding seams are firmly welded together, the top surface of the back cable support on each side and the top surface of the corresponding saddle groove wall plate edge span side are positioned on the same inclined surface, and the back cable anchor body is assembled into an integral main cable saddle structure with the back cable anchoring body; of course, this welded structure does not interfere with the combined assembly of the saddle body at the side and midspan sides through the mid-split joint.
Example 4
The invention comprises a saddle body and a back rope anchoring body which are in a split structure.
The cable saddle body is of an integral structure formed by integrating a side span side and a middle span side, and saddle groove wall plates which are upwards erected are arranged on two sides of the saddle groove; the top profile line of each saddle groove wallboard is an arched arc-shaped line.
The limiting grooves are formed in the inner side of the saddle groove wall plate on each side of the saddle body in an inward sinking mode, each limiting groove is arranged on the upper portion of the saddle groove wall plate middle portion area, and two (one, two or three) pull rod holes are formed in the saddle groove wall plate in each limiting groove, corresponding to the pull rod hole arrangement track on the whole saddle groove wall plate. Limiting grooves on the saddle groove wall plates at two sides of the saddle body are symmetrically formed.
The back cable anchoring body mainly comprises two side back cable supports and an anchor beam. The two side back rope supports are formed in a bilateral symmetry structure, the two side back rope supports are matched with the forming space of two side saddle groove wall plates of the rope saddle body at intervals, and the rear end of each side back rope support is provided with a support rear end face with an outward folding flange edge structure; the two ends of the anchor beam are respectively fixed on the rear end surfaces of the supports of the two-side back rope supports through a plurality of locking bolt pairs, and back rope hangers extending to the side span sides are arranged on the anchor beam between the two-side back rope supports and used as back ropes for connecting a suspension bridge.
Each side of the back rope support of the back rope anchoring body is of a triangular structure, each side of the back rope support is provided with a top surface welding groove matched with the profile line of the top of the corresponding saddle groove wall plate on the rope saddle body, and the length of the top surface welding groove is consistent with the length of the limiting groove on the corresponding saddle groove wall plate on the rope saddle body. The inner side of the top surface welding groove of the back rope support is provided with a support lug plate extending downwards, the outline structure of the support lug plate is matched with the outline of a limit groove on the corresponding saddle groove wall plate of the rope saddle body, the vertical side edges of the front side and the rear side of the support lug plate are respectively provided with a welding groove structure, and the bottom edge of the support lug plate is provided with a bottom surface welding groove; two (the number can be one, two or three) pull rod holes are formed in the support lug plate, and the two pull rod holes in the support lug plate are specifically required to be in one-to-one correspondence with the two pull rod holes in the saddle groove wall plate in the corresponding limiting groove.
And the two side back cable supports of the back cable anchoring body are respectively assembled and fixed in limit grooves on corresponding saddle groove wall plates on two sides of the cable saddle body in a welding component mode. Specifically, the support lug plates of each side of the back cable support of the back cable anchoring body are embedded in the limiting grooves on the corresponding saddle groove wall plates of the cable saddle body, and the top surface of the back cable support is formed in an inclined surface structure at the top of the corresponding saddle groove wall plate on the cable saddle body; the top surface welding groove of the back rope support is welded with the top surface of the corresponding saddle groove wallboard to form a groove welding seam; the front and rear vertical side edges of the support lug plate are respectively welded with the front and rear side edge surfaces of the corresponding limiting groove correspondingly to form a groove weld; and the bottom welding groove of the support lug plate is welded with the bottom side surface of the corresponding limit groove to form a groove welding seam. Therefore, the support lug plates of the back rope support on each side of the back rope anchor body are welded together firmly through groove welding seams formed around the support lug plates and around the limiting grooves on the corresponding saddle groove wall plates on the rope saddle body, the top surface of each side of the back rope anchor body forms an upward protruding inclined surface on the top surface of the corresponding saddle groove wall plate, and the support lug plates are assembled into the integral main rope saddle structure with the back rope anchor body.
Example 5
Other contents of this embodiment are the same as those of embodiment 1,2, 3 or 4 except that: the back cable support and the anchor beam at two sides of the back cable anchoring body are of an integral structure, namely, the back cable support and the anchor beam at two sides are integrally formed.
Example 6
Other contents of this embodiment are the same as those of embodiment 1,2, 3 or 4 except that: the two side back cable supports and the anchor beam of the back cable anchoring body are welded into an integral structure, namely, the two ends of the two side back cable supports and the anchor beam are welded into a whole.
The above examples are only for illustrating the invention and are not to be construed as limiting the invention; although the invention has been described in detail with reference to the above embodiments, it will be understood by those of ordinary skill in the art that: the present invention may still modify the specific technical solutions in the above embodiments, or perform equivalent replacement on some technical features (for example, the back cable hanging lugs on the back cable anchoring body anchor beam, and replace the back cable hanging lugs with U-shaped clamping groove structures formed on the anchor beam, etc.), where these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the present invention.

Claims (2)

1. A main cable saddle of a welded back cable structure is characterized in that:
The cable saddle comprises a cable saddle body (1) and a back cable anchoring body (2) which are in a split structure, wherein back cable supports (21) on two sides of the back cable anchoring body (2) are respectively fixed on corresponding saddle groove wall plates on two sides of the cable saddle body (1) in a combined manner in a welding manner;
Each side of the back cable support (21) of the back cable anchoring body (2) is provided with a top surface welding groove (25) matched with the profile line of the top of the corresponding saddle groove wall plate of the cable saddle body (1), one side of the top surface welding groove (25) of the back cable support (21) is provided with a support lug plate (27) extending downwards, and at least one side edge and the bottom edge of the support lug plate (27) are respectively provided with a welding groove; correspondingly, limit grooves (13) matched with the support lug plates (27) at the bottoms of the corresponding back cable supports (21) are formed in the wall plates of the saddle grooves at each side of the saddle body (1); during assembly, a support lug plate (27) of each side of the back cable support (21) of the back cable anchoring body (2) is embedded in a limit groove (13) on a corresponding saddle groove wallboard of the cable saddle body (1), a top surface welding groove (25) of the back cable support (21) is welded with the top surface of the corresponding saddle groove wallboard to form a groove welding seam, and welding grooves of at least one side edge and the bottom edge of the support lug plate (27) are respectively welded with the side edge surface and the bottom edge surface of the corresponding limit groove (13) to form the groove welding seam;
The cable saddle body (1) is mainly formed by locking a plurality of locking bolt pairs on a middle-divided joint surface of a side span side (11) and a middle span side (12) of a split structure, a limiting groove (13) on a saddle groove wall plate on each side of the cable saddle body (1) is arranged on the middle span side (12) of the cable saddle body (1), and a welding seam between a back cable support (21) and a corresponding saddle groove wall plate of the cable saddle body (1) is arranged on the middle span side (12) of the cable saddle body (1);
The top of each saddle groove wallboard of the saddle body (1) is provided with a limiting structure for supporting and limiting the front end surface (24) of the support corresponding to the back rope support (21), and the front end surface (24) of the support of the back rope support (21) is in surface contact fit with the limiting structure of the top of the saddle groove wallboard corresponding to the saddle body (1);
the limiting structure at the top of each side saddle groove wall plate of the saddle body (1) is formed by dividing a joint surface in a side span side (11) of the saddle body (1), and a limiting end surface (15) which is matched with a support front end surface (24) of the back rope support (21) is arranged at the upper part of the middle division joint surface of the side span side (11);
a downwardly extending support lug plate (27) on the back cable support (21) is positioned on the inner side of the top surface welding groove (25); correspondingly, the limiting groove (13) on the saddle groove wall plate corresponding to the saddle body (1) is positioned at the inner side of the saddle groove wall plate.
2. The welded back cable saddle of claim 1 wherein: the back rope anchoring body (2) mainly comprises two side back rope supports (21) and an anchor beam (22) of a split structure, two ends of the anchor beam (22) are respectively fixed on the support rear end faces (26) of the two side back rope supports (21) through a plurality of locking bolt pairs, and back rope hangers (23) extending to the side span sides are arranged on the anchor beam (22) between the two side back rope supports (21).
CN201811505852.0A 2018-12-10 2018-12-10 Main cable saddle with welded back cable structure Active CN109457611B (en)

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CN209508811U (en) * 2018-12-10 2019-10-18 德阳天元重工股份有限公司 A kind of welded type dorsal funciculus structure main cable saddle

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CN101664876B (en) * 2009-09-09 2011-08-24 四川天元机械工程股份有限公司 Processing method of large-scale suspension bridge vice saddle
KR101408648B1 (en) * 2013-03-13 2014-06-18 한양대학교 산학협력단 Pressure contact type tower top saddle for multi-span suspension bridge
CN103526699B (en) * 2013-10-21 2015-06-10 中国石油化工股份有限公司 Method for replacing pipe bridge hanging steel ropes
CN106271437B (en) * 2016-08-31 2021-03-30 德阳天元重工股份有限公司 Integral machining method for split main cable saddle of suspension bridge

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