CN-224227647-U - Main cable saddle for space cable suspension bridge

CN224227647UCN 224227647 UCN224227647 UCN 224227647UCN-224227647-U

Abstract

The utility model relates to the technical field of suspension bridges, and particularly discloses a main cable saddle for a space cable suspension bridge, which comprises a saddle body, and a left saddle head and a right saddle head which are arranged on the saddle body in a left-right position corresponding to a transverse bridge of the suspension bridge; the saddle body is provided with a left bottom plate and a right bottom plate which are matched in an obtuse angle relation, the left bottom plate is provided with a left longitudinal main rib which is perpendicular to the left bottom plate and the thickness center of the left longitudinal main rib corresponds to the saddle groove width center of the left saddle head, and the right bottom plate is provided with a right longitudinal main rib which is perpendicular to the right bottom plate and the thickness center of the right longitudinal main rib corresponds to the saddle groove width center of the right saddle head. The utility model has the technical characteristics of compact structure, relatively clear stress system and excellent stress stability, and is beneficial to reducing the design technical difficulty of the main cable saddle and the suspension bridge.

Inventors

HUANG ANMING
ZHANG XU
XIANG ZHIQIANG
ZHANG FAN
CHEN YUANLIN
SHI HONGCHANG
YANG FURONG

Assignees

德阳天元重工股份有限公司

Dates

Publication Date: 20260512
Application Date: 20250422

Claims (8)

1. A main cable saddle for a space cable suspension bridge comprises a saddle body (1), and a left saddle head (2) and a right saddle head (3) which are arranged on the saddle body (1) in a left-right position corresponding to a transverse bridge of the suspension bridge; The saddle groove width center line I (21) of the left saddle head (2) and the saddle groove width center line II (31) of the right saddle head (3) form an acute angle matching relationship at the extension of the upper end; the method is characterized in that: The saddle body (1) is provided with a left bottom plate (13) and a right bottom plate (14) which are matched in an obtuse angle relation; The left side bottom plate (13) is provided with a left side longitudinal main rib (11) which is perpendicular to the left side bottom plate (13) and the thickness center of which corresponds to the saddle groove width center of the left side saddle head (2), and the left side longitudinal main rib (11) is arranged along the length direction of the left side saddle head (2); the right side bottom plate (14) is provided with a right side longitudinal main rib (12) perpendicular to the right side bottom plate (14) and the thickness center of the right side longitudinal main rib corresponds to the saddle groove width center of the right side saddle head (3), and the right side longitudinal main rib (12) is distributed along the length direction of the right side saddle head (3).
2. The main cable saddle for a space cable suspension bridge according to claim 1, wherein: the saddle body (1) is of a steel plate welding structure; The saddle body (1) is provided with a plurality of transverse rib plates (15) which are arranged at the left side and the right side of the left longitudinal main rib (11) corresponding to the transverse direction of the suspension bridge, and a plurality of transverse rib plates (15) which are arranged at the left side and the right side of the right longitudinal main rib (12) corresponding to the transverse direction of the suspension bridge, each transverse rib plate (15) is arranged along the width direction of the corresponding saddle head, each transverse rib plate (15) is respectively matched with the corresponding main rib and the bottom plate in a vertical relationship, and each transverse rib plate (15) at the right longitudinal main rib (12) is in one-to-one corresponding matching relationship with each transverse rib plate (15) at the left longitudinal main rib (11); In the one-to-one correspondence, the transverse rib plate (15) at the left side of the right longitudinal main rib (12) and the transverse rib plate (15) at the right side of the left longitudinal main rib (11) are of a whole plate structure.
3. The main cable saddle for a space cable suspension bridge according to claim 1, wherein: the saddle body (1) is of a steel plate welding structure; The saddle body (1) is provided with a plurality of transverse rib plates (15) which are arranged at the left side and the right side of the left longitudinal main rib (11) corresponding to the transverse direction of the suspension bridge, and a plurality of transverse rib plates (15) which are arranged at the left side and the right side of the right longitudinal main rib (12) corresponding to the transverse direction of the suspension bridge, each transverse rib plate (15) is arranged along the width direction of the corresponding saddle head, each transverse rib plate (15) is respectively matched with the corresponding main rib and the bottom plate in a vertical relationship, and each transverse rib plate (15) at the right longitudinal main rib (12) is in one-to-one corresponding matching relationship with each transverse rib plate (15) at the left longitudinal main rib (11); In the one-to-one correspondence, the transverse rib plate (15) at the left side of the right longitudinal main rib (12) and the transverse rib plate (15) at the right side of the left longitudinal main rib (11) are of a split combined connection structure; The split combined connection structure is provided with transition plates which are arranged at the front side and the rear side of the transverse rib plates corresponding to the longitudinal bridge of the suspension bridge in a corresponding matching relationship, the transition plates misplacement shield the butt joint of the transverse rib plates in the corresponding matching relationship, and the transition plates are respectively connected with the transverse rib plates in the corresponding matching relationship through a plurality of locking bolts.
4. A main cable saddle for space cable suspension bridge according to claim 2 or 3, wherein: The saddle body (1) is provided with a plurality of flat rib plates (16) which are arranged at the left side and the right side of the left longitudinal main rib (11) corresponding to the height direction of the main cable saddle, and a plurality of flat rib plates (16) which are arranged at the left side and the right side of the right longitudinal main rib (12) corresponding to the height direction of the main cable saddle, wherein each flat rib plate (16) is arranged along the width direction of the corresponding saddle head and is matched with the corresponding bottom plate in parallel, and each flat rib plate (16) is matched with the corresponding main rib and the corresponding transverse rib plate (15) respectively in a vertical relationship.
5. The main cable saddle for a space cable suspension bridge according to claim 1, wherein: The left bottom plate (13) and the right bottom plate (14) of the saddle body (1) are integrally formed at the corner joint by a penetration welding structure.
6. A main cable saddle for a space cable suspension bridge according to claim 1 or 5, wherein: An upper bearing plate matched with the left grid component (4) is connected to the bottom of the left bottom plate (13) of the saddle body (1); An upper bearing plate matched with the right grid component (5) is connected to the bottom of the right bottom plate (14) of the saddle body (1); the upper bearing plate and the pushing friction structure at the bottom of the left bottom plate (13) and the upper bearing plate and the pushing friction structure at the bottom of the right bottom plate (14) are formed by independent structures.
7. The main cable saddle for a space cable suspension bridge according to claim 6, wherein: The left grille component (4) matched with the left bottom plate (13) of the saddle body (1), and the right grille component (5) matched with the right bottom plate (14) of the saddle body (1) are of mutually independent structures.
8. The main cable saddle for a space cable suspension bridge according to claim 1, wherein: The saddle width center line I (21) of the left saddle head (2) and the saddle width center line II (31) of the right saddle head (3) form an acute angle less than or equal to 45 degrees at the extension position of the upper end.

Description

Main cable saddle for space cable suspension bridge Technical Field The utility model relates to the technical field of suspension bridges, in particular to a main cable saddle for a space cable suspension bridge. Background In addition to parabolic steering of the main cables in the vertical direction (i.e., the height direction of the suspension bridge-the vertical direction), a certain amount of arc-shaped offset steering is required in the transverse direction (i.e., the width direction of the suspension bridge-the transverse direction upwards), so that two main cables supported and steered by the main tower are in non-parallel correspondence, and the trend of each main cable on the suspension bridge is distributed in three dimensions of length, height and width. The main cable saddle is an important stress component for supporting and steering the main cable by the main tower. Based on the particularity of the main cable of the space cable suspension bridge in the arrangement trend of three dimensions of length, height and width, the main cable saddle is required to realize the guiding steering of the three dimensions of length, height and width for the main cable, so that the saddle groove on the main cable saddle head is required to form the guiding of the main cable in the length direction (namely the longitudinal bridge direction) of the corresponding suspension bridge, and the steering of the main cable in the height direction (namely the vertical bridge direction) of the corresponding suspension bridge is required to form the steering of the main cable in the width direction (namely the transverse bridge direction) of the corresponding suspension bridge. Based on this, the inventor has developed and developed a main cable saddle for a space cable suspension bridge in an early stage, which has various structural forms. For example, chinese patent literature discloses a technique called "main cable saddle for space cable suspension bridge", publication No. CN 210066490U, publication No. 2020, 02, 14, and a technique called "main cable saddle for space cable", publication No. CN 220538404U, publication No. 2024, 02, 27, etc. The saddle heads are arranged on the same saddle body in a left-right position upwards in a suspension bridge transverse bridge, saddle groove width central lines of the two saddle heads form an acute angle matching relationship at the upper end extension, a flat bottom plate of the same saddle body is shared, and saddle groove width central line extension lines of each saddle head are matched with the bottom plate in a non-perpendicular relationship. However, the technology has the advantages that on one hand, the stress system is complex, the design technical difficulty of the main cable saddle and the suspension bridge is increased, and on the other hand, the arrangement space requirement of two saddle heads on the same saddle body is high, so that the whole structure is not beneficial to compactness. For example, the technology disclosed in chinese patent literature is called "saddle for space cable suspension bridge", CN 204151677U, 2015, 02, 11, etc. The technology is that main cable saddles (namely conventional main cable saddles) of two-dimensional saddle grooves are arranged at the top of a main tower in an inclined mode of setting an included angle, so that the saddle groove of each cable saddle has the functions of bearing force at the bottom and forming three-dimensional arrangement steering on a main cable. However, the technology has the advantages that on one hand, the structure is dispersed, the arrangement space requirement on the cable saddle on the main tower is high, on the other hand, the two main cable saddles form a relatively independent stress system on the main tower, and the stress load of the main cable saddles cannot be balanced, so that the stress load of the main cable saddles is relatively limited, the stress stability is poor, the main cable saddles are required to be balanced through the design of a complex suspension bridge stress system, and the design technical difficulty of the suspension bridge is increased. Disclosure of utility model Aiming at the particularity of the space cable suspension bridge and the defects of the prior art, the utility model provides the main cable saddle for the space cable suspension bridge, which has the advantages of compact structure, relatively clear stress system and excellent stress stability. The technical aim of the utility model is achieved by the following technical scheme that the main cable saddle for the space cable suspension bridge comprises a saddle body, and a left saddle head and a right saddle head which are arranged on the saddle body in a left-right position corresponding to the transverse bridge direction of the suspension bridge; The saddle groove width center line I of the left saddle head and the saddle groove width center line II of the right saddle head form an acute angle matching rela