Fabricated connecting joint of steel truss bridge

Abstract

The invention discloses a fabricated connecting joint of a steel truss bridge. The fabricated connecting joint comprises a joint connecting plate which sleeves the outer side of a transverse beam and provided with an upward opening; two symmetrical oblique beams are rotationally connected to the inner walls of the two sides of the bottom of the joint connecting plate; a plurality of trapezoidal bearing plates which are transversely arranged and located at the top of the transverse beam are slidably connected into the joint connecting plate in a penetrating mode; two grooves are symmetrically arranged in the transverse beam; and first clamping teeth are fixedly connected onto the inner wall of one side of each groove. The fabricated connecting joint is compact in structure; the rigidity of the transverse beam can not be affected when the joint connecting plate is detached and replaced in the later bridge maintenance process; the inclination angles of the oblique beams can be adjusted according to different bridge models through the joint connecting plate, so that the universality of the joint connecting plate is improved, a specific joint connecting plate does not need to be specially customized, and then the production cost of the joint connecting plate is reduced.

Description

technical field [0001] The invention belongs to the field of bridges and relates to an assembled connection node of a steel truss bridge. Background technique [0002] With the continuous development of urban infrastructure construction, the construction scale of roads and bridges continues to expand, and steel structure bridges have been widely used due to their short construction period and strong adaptability to various complex environments. The steel structure bridge mainly adopts various types of steel to be connected by bolts or welding to form the main body of the steel structure bridge. The joint form of each section steel at the connection has an important impact on the stress state and safety of the steel structure bridge. [0003] The invention whose notification number is CN110230254B discloses a steel truss bridge assembly node connection structure. It includes node connecting plates arranged on the transverse beam and located on both sides of the transverse b...

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Problems solved by technology

[0005] In view of this, the present invention provides a steel truss bridge assembly type connection node in order to solve the problems that the connecting plate is difficult to disassemble in the existing steel truss bridge assembly type connection structure, the inclination angle of the inclined beam cannot be adjusted, and the service life of the steel structure bridge is affected.

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