Spliced truss of steel structure bridge

Abstract

The invention relates to a spliced truss of a steel structure bridge, which comprises stand columns, transverse frames and matching units, the stand columns are arranged in a bilateral symmetry mode,the lower ends of the stand columns are connected with connecting pieces, the transverse frames are arranged between the stand columns, and the matching units are installed at the left ends and the right ends of the transverse frames which are connected with the stand columns through the matching units. The transverse frame, the matching unit and the stand column are installed through concave-convex matching between the transverse frame and the matching unit and the stand column and matching between the threaded rod and the threaded hole and the fixing hole, and therefore workers can assembleand disassemble the transverse frame and the stand column conveniently; and through concave-convex matching of multiple positions between the transverse frame and the matching unit and the stand column, loosening generated after installation is prevented, and therefore the installation stability is guaranteed.

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, workers weld at a higher position, the safety of the work cannot be guaranteed, and after the truss is used Difficult to disassemble

[0005] (2) In order to facilitate the installation and disassembly, the workers only use screws or other tools for simple fixing. 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

Images