Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Beam end bidirectional telescopic device and telescopic method
The invention relates to a beam end bidirectional telescopic device and a telescopic method, scissor connecting rod mechanisms are respectively arranged on two sides of a fixed transition plate and a driven steel sleeper and a driving steel sleeper on two sides of the fixed transition plate, and the scissor connecting rod mechanisms, the fixed transition plate, the driven steel sleeper and the driving steel sleeper are jointly suitable for a bridge with the beam seam width variation of +/-800mm. The shear connecting rod mechanism has the advantages that the shear connecting rod mechanism is originally connected with the fixed transition plate in a two-way hinged mode, the shear connecting rod mechanism can adapt to horizontal and vertical rotating angles of super-large beam ends at beam seams, and the whole mechanism rotates flexibly and is not prone to being blocked; the driven steel sleeper is connected with the connecting rod mounting base through bolts, freely moves along with extension and retraction of the connecting rod and can prevent the connecting rod foundation from upwarping, and the extension and retraction stability of the whole mechanism is guaranteed; an ultra-high molecular weight polyethylene small-resistance anti-attrition gasket is arranged on the friction surface between the connecting rods, so that the rotating friction force of a connecting rod joint can be reduced to the greatest extent, and the strength is reliable; high-strength shaft sleeves are arranged in the connecting rod connector connecting holes and the base B connecting holes, and shear stress from bolts or base pin shafts can be resisted to the maximum extent.
本发明涉及一种梁端双向伸缩装置及伸缩方法，在固定过渡板两侧及固定过渡板两侧的从动钢枕和主动钢枕分别设有剪刀连杆机构，该剪刀连杆机构与固定过渡板、从动钢枕和主动钢枕一同适应于梁缝宽度变化量为±800mm的桥梁。优点：一是剪刀连杆机构原创性地与固定过渡板之间采用双向铰支连接，能够适应梁缝处超大梁端水平、竖直转角，整个机构转动灵活、不易卡阻；二是从动钢枕通过螺栓与连杆安装底座连接，并随连杆伸缩自由移动，且能防止连杆基础上翘，保证整个机构伸缩的稳定性；三是连杆与连杆摩擦面设置超高分子量聚乙烯小阻力减磨垫圈，能够最大程度减小连杆接头转动摩擦力，同时强度可靠；四是连杆接头连接孔、底座B连接孔均设置高强轴套，能够最大程度抵抗来自螺栓或底座销轴的剪应力。
Beam end bidirectional telescopic device and telescopic method
The invention relates to a beam end bidirectional telescopic device and a telescopic method, scissor connecting rod mechanisms are respectively arranged on two sides of a fixed transition plate and a driven steel sleeper and a driving steel sleeper on two sides of the fixed transition plate, and the scissor connecting rod mechanisms, the fixed transition plate, the driven steel sleeper and the driving steel sleeper are jointly suitable for a bridge with the beam seam width variation of +/-800mm. The shear connecting rod mechanism has the advantages that the shear connecting rod mechanism is originally connected with the fixed transition plate in a two-way hinged mode, the shear connecting rod mechanism can adapt to horizontal and vertical rotating angles of super-large beam ends at beam seams, and the whole mechanism rotates flexibly and is not prone to being blocked; the driven steel sleeper is connected with the connecting rod mounting base through bolts, freely moves along with extension and retraction of the connecting rod and can prevent the connecting rod foundation from upwarping, and the extension and retraction stability of the whole mechanism is guaranteed; an ultra-high molecular weight polyethylene small-resistance anti-attrition gasket is arranged on the friction surface between the connecting rods, so that the rotating friction force of a connecting rod joint can be reduced to the greatest extent, and the strength is reliable; high-strength shaft sleeves are arranged in the connecting rod connector connecting holes and the base B connecting holes, and shear stress from bolts or base pin shafts can be resisted to the maximum extent.
本发明涉及一种梁端双向伸缩装置及伸缩方法，在固定过渡板两侧及固定过渡板两侧的从动钢枕和主动钢枕分别设有剪刀连杆机构，该剪刀连杆机构与固定过渡板、从动钢枕和主动钢枕一同适应于梁缝宽度变化量为±800mm的桥梁。优点：一是剪刀连杆机构原创性地与固定过渡板之间采用双向铰支连接，能够适应梁缝处超大梁端水平、竖直转角，整个机构转动灵活、不易卡阻；二是从动钢枕通过螺栓与连杆安装底座连接，并随连杆伸缩自由移动，且能防止连杆基础上翘，保证整个机构伸缩的稳定性；三是连杆与连杆摩擦面设置超高分子量聚乙烯小阻力减磨垫圈，能够最大程度减小连杆接头转动摩擦力，同时强度可靠；四是连杆接头连接孔、底座B连接孔均设置高强轴套，能够最大程度抵抗来自螺栓或底座销轴的剪应力。
Beam end bidirectional telescopic device and telescopic method
梁端双向伸缩装置及伸缩方法
SHI LONGBO (Autor:in) / LIU QIANG (Autor:in) / CHEN FEI (Autor:in) / ZHI TAO (Autor:in) / YAN YUQING (Autor:in)
04.03.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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