Dispersed cable saddle structure for bridge

Abstract

The invention discloses a dispersed cable saddle structure for a bridge, comprising a saddle bow (1), a saddle component and a pad stone (3); the saddle bow (1) is supported on the pad stone (3) through the saddle component; the saddle component comprises an upper support base plate (4), a middle lining plate (5) and a lower support base plate (6); a cylindrical surface sliding plate (7) is arranged between the upper support base plate (4) and the middle lining plate (5) in cylindrical fit; a plane sliding plate (8) is arranged between the middle lining plate (5) and the lower support base plate (6); the saddle bow (1) is fixed on the upper support base plate (4); and the lower support base plate (6) is fixed on the pad stone (3). The invention overcomes the defects of the traditional saddle through the design of the saddle bow supporting structure, thereby having the characteristics of safety and reliability, flexible rotation, rational stress spread, convenient regulation and convenient maintenance.

Description

technical field [0001] The invention belongs to the technical field of bridges, and in particular relates to a loose cable saddle structure for bridges. Background technique [0002] At present, traditional scatter saddles such as image 3 , 4 , shown in 5: mainly include saddle head 10, cross-section is the saddle body 11 of inverted triangle, base 12, saddle head 10 is welded on the upper end of saddle body 11, between saddle body 11 and base 12 through the upper connection block of elongated shape 13 and the lower connecting block 14 are connected, and a rotating pin is also arranged between the upper connecting block 13 and the lower connecting block 14, and a linear contact surface is formed between the saddle body 11 and the upper connecting block 13, and the structure adopts a mixed structure of casting-welding , the pommel part is made of cast steel, and the saddle is welded by steel plate. The structure of the loose cable saddle is mainly realized by the arc-shape...

AI Technical Summary

Problems solved by technology

The structure of the loose cable saddle is mainly realized by the arc-shaped steel contact surface. Its rotation angle is small, it is difficult to rotate and slide, and there is a lack of rotation flexibility and sliding adjustment. The rotation and sliding resistance is large, and it is difficult to ensure that the loose cable Uniform stress distribution on scatter cables

The above-mentioned line contact surface is easy to damage the contact arc, which leads to the failure of the loose cable saddle function. At the same time, it adopts line contact, which transmits a large stress to the concrete, and the lower plate needs to be thicker to ensure the concrete stress.

In addition, limited by the shape and structure of the saddle body, the height of the saddle body is large under the premise of the force distribution requirements, so the height of the entire saddle is relatively high, and the stability of the high center of gravity is poor.

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