A steel structure bridge splicing truss

Abstract

The invention relates to a spliced ​​truss of a steel structure bridge, comprising a vertical column, a horizontal frame and a matching unit. The vertical column is arranged symmetrically on the left and right, the lower end of the vertical column is connected with a connecting piece, a horizontal frame is arranged between the vertical columns, and the left and right ends of the horizontal frame are installed with matching units. unit, the horizontal frame is connected with the column through the matching unit. The invention installs the horizontal frame, the matching unit and the vertical column through the concave-convex cooperation between the horizontal frame, the matching unit and the vertical column, and the cooperation between the threaded rod, the threaded hole and the fixing hole, so that it is convenient for workers to assemble and assemble the horizontal frame and the vertical column. Removal; through the concave-convex cooperation between the horizontal frame, the matching unit and the column, it can prevent loosening after installation, thereby ensuring the stability of the installation.

Description

technical field [0001] The invention relates to the field of steel structure bridges, in particular to a spliced ​​steel structure bridge truss. Background technique [0002] A truss is a structure made up of members connected to each other by hinges at both ends. The truss is composed of straight rods and generally has a plane or space structure of triangular units. The truss members mainly bear axial tension or pressure, so that the strength of the material can be fully utilized. When the span is large, it can save materials compared with solid web beams, reduce self-weight and Increase the stiffness; the advantage of the truss is that the rods mainly bear tension or pressure, which can give full play to the role of materials, save materials and reduce the weight of the structure. Commonly used are steel truss, reinforced concrete truss, prestressed concrete truss, wooden truss, steel and wood composite truss, steel and concrete composite truss. [0003] Since the truss ...

AI Technical Summary

Problems solved by technology

[0004] (1) For short-term or one-time-use truss assembly, if it is assembled by welding, but the working position is too high, the workers weld at a higher position, which cannot guarantee the safety of the work, and the truss is completed. Difficult to disassemble

[0005] (2) In order to facilitate installation and disassembly, workers only use screws or other tools for simple fixation. If the screws are loose due to excessive weight, the truss will move or shake during use, and the truss assembly method cannot guarantee the stability of the truss. , so that the safety of the personnel present cannot be guaranteed

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