Computer Aided Measurement Method of Steel Frame Beam-to-Column End-plate Joint Rotation Angle

Abstract

The computer-aided measurement method of steel frame beam-column end-plate connection joint angle belongs to the experimental research field of steel frame structure beam-column joint mechanical performance. six displacement gauges at the points, at the corner points of the node domain opposite the flanges in tension or compression of the beam, at the ends of the flanges in tension or compression of the beam adjacent to the end plates, and mounting Measured by the inclinometer on the column web at the intersection of the beam and column axes, or by installing at the intersection of the centerline of the beam tension or compression flange and the column axis, or at the column flange adjacent to or opposite to the beam Six displacement gauges installed at the intersection of the center line and the beam axis, and at the end of the flange of the beam adjacent to the end plate under tension or compression, are measured and calculated. The invention has the advantages of high precision, effectively eliminating the influence of deformation of beams and columns, and being convenient and accurate when applied to steel frame structure design considering node deformation.

Description

technical field [0001] The invention relates to the technical field of structural engineering steel structures, in particular to the experimental research on the mechanical performance of the beam-column end-plate connection nodes of the steel frame structure and the design calculation of the steel frame structure. technical background [0002] Steel frame structures have been widely used at home and abroad, and the moment-rotation curves of beam-column joints have an important influence on the analysis and calculation of internal force and deformation of the frame and the design of beam-column components. Due to the differences in the research environment and research methods, most researchers at home and abroad use their own defined node rotation angles and measurement calculation methods, and the measurement results are inaccurate or incorrect, which makes a large number of research results obtained in terms of applicability and comparability. And there are bigger deficie...

AI Technical Summary

Problems solved by technology

[0003] In view of the problem that the existing research cannot accurately measure and calculate the joint angle of the beam-column end plate connection of the steel frame structure, the present invention proposes a variety of measurement and calculation methods, through the reasonable selection and arrangement of the measuring device, and calculates the joint angle according to the corresponding formula

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