CN-224213150-U - Wind-vibration-preventing structure of bridge

CN224213150UCN 224213150 UCN224213150 UCN 224213150UCN-224213150-U

Abstract

The embodiment of the utility model provides a wind vibration prevention structure of a bridge, which relates to the technical field of bridge construction, and comprises a steel guide beam body, a main beam body and two flexible connecting components, the two flexible connection components are respectively arranged on two longitudinal sides of the steel guide beam body, and the two flexible connection components are used for flexibly connecting the steel guide beam body and the main beam body. According to the utility model, the two flexible connecting components are connected with the steel guide beam body and the main beam body, so that the steel guide beam body, the two flexible connecting components and the main beam body form a stable structure, vibration generated by the steel guide beam under the action of wind load is effectively reduced, the stress safety of the steel guide beam structure is ensured, and the stability of the steel guide beam structure is improved.

Inventors

GUAN RONG
ZHANG WEIHONG
WU ZUOREN
CUI YIYANG
FAN CHAO
YANG DONGYANG
ZHOU CHAOZHOU
HU JUN
CHEN SHIMING
LU PENG
XIA GANG

Assignees

中铁大桥局集团有限公司

Dates

Publication Date: 20260508
Application Date: 20250513

Claims (9)

1. A wind-vibration preventing structure for a bridge, comprising: a steel guide beam body (1) and a main beam body (3); The two flexible connecting components (2), the two flexible connecting components (2) are respectively arranged on two longitudinal sides of the steel guide beam body (1), and the two flexible connecting components (2) are used for flexibly connecting the steel guide beam body (1) with the main beam body (3).
2. A bridge wind-vibration prevention structure according to claim 1, wherein each of said flexible connection units (2) comprises: The vertical rod (21) is arranged in the middle of one longitudinal side of the steel guide beam body (1); The first roller (22) is arranged on the vertical rod (21); The two first anchoring pieces (23 a) are longitudinally arranged on two sides of the vertical rod (21) along the steel guide beam body (1), one first anchoring piece (23 a) is arranged on the steel guide beam body (1), and the other first anchoring piece (23 a) is arranged on the main beam body (3); The second roller (24) is connected with the first anchoring piece (23 a) on the main beam body (3); The first end of the first rope (25) is anchored on one first anchoring piece (23 a) on the steel guide beam body (1), and the second end of the first rope (25) sequentially passes through the first roller (22) and the second roller (24) and extends towards one side close to the vertical rod (21) and is fixedly connected with the steel guide beam body (1).
3. A bridge wind-vibration prevention structure according to claim 2, wherein each of said flexible connection units (2) further comprises: The second anchoring piece (23 b), second anchoring piece (23 b) are located on the steel nose girder body (1) and are located on the girder body (3) first anchoring piece (23 a) with between montant (21), the second end of first rope (25) loops through first gyro wheel (22) with second gyro wheel (24) backward be close to one side extension of montant (21) and with second anchoring piece (23 b) fixed connection.
4. A bridge wind-vibration prevention structure according to claim 2, wherein each of said flexible connection units (2) further comprises: the third roller (26) is arranged on the vertical rod (21); The two third anchoring pieces (27) are longitudinally arranged on two sides of the vertical rod (21) along the steel guide beam body (1) and are arranged on the steel guide beam body (1); A fourth roller (28), the fourth roller (28) being connected to one of the third anchors (27); The first end of the second rope (29) is anchored on the other third anchoring piece (27), and the second end of the second rope (29) sequentially passes through the third roller (26) and the fourth roller (28) to extend towards one side close to the vertical rod (21) and is fixedly connected with the steel guide beam body (1).
5. A bridge wind-vibration prevention structure according to claim 2, wherein each of said first ropes (25) comprises: A rope (251); and the two rope clamps (252) are respectively arranged at two ends of the rope body (251).
6. The structure for preventing wind vibration of a bridge according to claim 5, wherein the rope (251) is a steel strand.
7. A structure for preventing wind vibrations of a bridge according to claim 2, wherein the vertical bars (21) are made of steel.
8. The bridge wind-vibration prevention structure according to claim 2, further comprising: The connecting system (4), the both ends of connecting system (4) are used for respectively connecting two montants (21) of two flexible coupling assembly (2).
9. The bridge wind-vibration prevention structure according to claim 8, wherein: The connecting system (4) is of a steel pipe structure, and two ends of the steel pipe structure are respectively connected with the two vertical rods (21).

Description

Wind-vibration-preventing structure of bridge Technical Field The utility model relates to the technical field of bridge construction, in particular to a wind vibration prevention structure of a bridge. Background The steel guide beam belongs to a temporary auxiliary structure in the pushing and pulling construction of the steel beam, the steel guide beam is arranged at the front/rear end of the main beam, the self weight of the steel guide beam needs to be lightened in order to meet the internal force requirement during the pushing of the main beam, the structural design of changing rigidity or sectionally changing rigidity from the root to the front end is adopted, and each section is connected by bolts, so that the assembled design is realized. In the prior art, when the steel guide beam is in a cantilever state in a strong wind environment, the steel guide beam vibrates under the action of wind, wind vibration has adverse effects on the steel guide beam structure, and even the steel guide beam is likely to break suddenly, so that the stability of the existing steel guide beam structure is lower. Disclosure of utility model The embodiment of the utility model provides a wind vibration prevention structure of a bridge, which aims to solve the technical problem that the existing steel guide beam structure in the related art is low in stability in a strong wind environment. The embodiment of the utility model provides a wind vibration prevention structure of a bridge, which comprises a steel guide beam body and a main beam body; The two flexible connecting assemblies are respectively arranged on two longitudinal sides of the steel guide beam body, and the two flexible connecting assemblies are used for flexibly connecting the steel guide beam body and the main beam body. In some embodiments, each of the flexible connection units comprises: the vertical rod is arranged in the middle of one longitudinal side of the steel guide beam body; The first roller is arranged on the vertical rod; The two first anchoring parts are longitudinally arranged on two sides of the vertical rod along the steel guide beam body, one of the first anchoring parts is arranged on the steel guide beam body, and the other first anchoring part is arranged on the main beam body; The second roller is connected with the first anchoring piece on the main beam body; the first end of the first rope is anchored on one first anchoring piece on the steel guide beam body, and the second end of the first rope sequentially passes through the first roller and the second roller, extends towards one side close to the vertical rod and is fixedly connected with the steel guide beam body. In some embodiments, each of the flexible connection units further comprises: The second anchoring piece is arranged on the steel guide beam body and positioned between the first anchoring piece and the vertical rod on the main beam body, and the second end of the first rope sequentially passes through the first roller and the second roller, extends towards one side close to the vertical rod and is fixedly connected with the second anchoring piece. In some embodiments, each of the flexible connection units further comprises: The third roller is arranged on the vertical rod; The two third anchoring parts are longitudinally arranged on two sides of the vertical rod along the steel guide beam body and are arranged on the steel guide beam body; the fourth roller is connected with one of the third anchoring parts; The first end of the second rope is anchored on the other third anchoring piece, and the second end of the second rope sequentially passes through the third roller and the fourth roller, extends towards one side close to the vertical rod and is fixedly connected with the steel guide beam body. In some embodiments, each of the first cords comprises: A rope body; The two rope clamps are respectively arranged at two ends of the rope body. In some embodiments, the rope is a steel strand. In some embodiments, the vertical rod is made of steel. In some embodiments, further comprising: And two ends of the connecting system are respectively used for connecting the two vertical rods of the two flexible connecting components. In some embodiments, the connection system is a steel pipe structure, and two ends of the steel pipe structure are respectively connected with the two vertical rods. The technical scheme provided by the utility model has the beneficial effects that: The embodiment of the utility model provides a wind vibration prevention structure of a bridge, which comprises a steel guide beam body, a main beam body and two flexible connecting components, wherein the two flexible connecting components are respectively arranged on two longitudinal sides of the steel guide beam body, and flexibly connect the steel guide beam body with the main beam body. According to the utility model, the two flexible connecting components are connected with the steel guide beam body an