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Computer Aided Measuring Method of Steel Frame Beam-column Joint Rotation Angle

A computer-aided beam-column connection technology, which is applied in the field of structural engineering steel structures, can solve the problem of inability to accurately measure the angle of beam-column connection nodes of steel frame structures, etc.

Inactive Publication Date: 2011-12-28
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Aiming at the problem that the existing research cannot accurately measure and calculate the joint angle of the beam-column 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 devices, and calculates the joint angle according to the corresponding formula

Method used

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  • Computer Aided Measuring Method of Steel Frame Beam-column Joint Rotation Angle
  • Computer Aided Measuring Method of Steel Frame Beam-column Joint Rotation Angle
  • Computer Aided Measuring Method of Steel Frame Beam-column Joint Rotation Angle

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Embodiment 1

[0032] Embodiment 1 (see figure 1 ): This method is a method involving the measurement of the rotation angle produced by the shear deformation of the joint domain in the experimental study of the mechanical performance of the steel frame joint, which is realized by 4 displacement meters and 1 inclinometer arranged in the joint domain. The column is composed of a column flange 11, a column web 12, and a horizontal stiffener 13 in the node domain. The beam is composed of a beam flange 21 and a beam web 22 . Displacement meter 1 measures the displacement of the corner point of the node domain adjacent to the tension flange of the beam along the axial direction of the beam, which is recorded as Δ 1 , the displacement meter 2 measures the displacement of the corner point of the node domain adjacent to the beam compression flange along the axial direction of the beam, which is recorded as Δ 2 , the displacement meter 3 measures the displacement along the axial direction of the bea...

Embodiment 2

[0033] Embodiment 2 (see figure 2 ): This method is also a method involving the measurement of the rotation angle generated by the shear deformation of the joint domain in the experimental study of the steel frame joint mechanical performance, which is realized by four displacement gauges arranged in the joint domain. The column is composed of a column flange 11, a column web 12, and a horizontal stiffener 13 in the node domain. The beam is composed of a beam flange 21 and a beam web 22 . Displacement meter 1 measures the displacement of the node domain along the axial direction of the beam at the intersection of the center line of the beam tension flange and the column axis, and the displacement is recorded as Δ 1 , the displacement meter 2 measures the displacement of the node domain along the beam axis at the intersection of the center line of the beam compression flange and the column axis, and denote the displacement as Δ 2 , the displacement meter 3 measures the displ...

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Abstract

The computer-aided measurement method of the joint angle of steel frame beam-column connection belongs to the field of experimental research on the mechanical performance of steel frame structure beam-column joints. Four displacement meters on the nodes adjacent to the flange, on the nodes opposite to the beam tension flange and on the nodes opposite to the beam compression flange, and installed on the intersection of the beam and column axes or by installing at the intersection of the centerline of the beam tension flange and the column axis, at the intersection of the centerline of the beam compression flange and the column axis, or at the intersection of the column flange adjacent to the beam It is measured and calculated by four displacement meters installed at the intersection of the center line of the beam and the axis of the beam, and at the intersection of the center line of the column flange opposite to the beam and the axis of the beam. 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 experimental research on the mechanical performance of beam-column joints of steel frame structures and design calculations of steel frame structures. 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 deficiencies in practicability. How to accu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B21/22G01B21/02G01B21/32
Inventor 施刚石永久王元清
Owner TSINGHUA UNIV
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