A Connection Structure of Simply Supported Beam Bridge

Abstract

The invention relates to a connection structure of a simply supported girder bridge. The device includes a bridge pier, a support is provided on the upper surface of the bridge pier, a box girder is provided on the support, an anti-rolling mechanism is provided between the box girder and the support, and the anti-rolling mechanism includes a bridge connected to each side of the support. Hinged seat, each hinged seat is hinged with a horizontally arranged L-shaped cantilever, the free end of the horizontal section of the L-shaped cantilever is hinged with the hinged seat, the upper end of the vertical section is connected with the corresponding side eaves of the bottom surface of the box girder, and the upper surface of the support is provided with The pressure-bearing plate is located between the horizontal section of the L-shaped cantilever and the lower surface of the pressure-bearing plate, and a compression spring is provided. A horizontal anti-roll bar is connected to the pier. The middle section of the anti-roll bar is fixed to the side wall of the pier, and the two free ends Connected with the L-shaped cantilever, when the box girder is tilted by gravity, the anti-roll bar will generate a torsional internal moment to hinder the tilt of the box girder and ensure the stability of the box girder during the load-bearing process. This device is suitable for industrial production and has Very practical.

Description

technical field [0001] The invention belongs to the technical field of beam bridge structures, and in particular relates to a connection structure of simply supported beam bridges. Background technique [0002] In the existing Chinese patent database, a patent titled a composite simply supported beam of prestressed steel pipe truss in a tube is disclosed. The application number is CN201920917560.1, the application date is 20190618, the authorization announcement number is CN210315184U, and the authorization announcement date is 20200414. This patent includes a bridge pier and a bridge, the bridge is erected above the pier, the pier is a T-shaped pier, a fixing groove is arranged above the pier, a fixing plate is fixedly connected above the fixing groove, and the fixing plate A slot is evenly arranged above the slot, and a soft connection is installed in the slot, and the soft connection and the bridge are connected to each other. The soft connection is a long rubber soft con...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is that existing simply supported girder bridges roll over due to excessive gravity on one side. In order to improve its shortcomings, the present invention provides a connection structure of simply supported girder bridges

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