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A New Force-Measuring Device

This article outlines the application of a new force-measuring device and presents the experiment plan, test scheme, loading and measuring devices, calculations, equations, and a comparison of calculation and real load results. The article also discusses the measuring force in structural tests, including both axial load and moment, as well as the loading of the bottom of columns and the placement of the devices.

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A New Force-Measuring Device

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  1. A New Force-Measuring Device Design & Experiments Zhongyuan Wo Student Intern August 26, 2016

  2. Outlines • Application of Device • Experiment Plan • Test Scheme • Loading & Measuring Devices • Calculation • Equations • Comparison of Calculation & real load

  3. Application Scenario • Measuring force in structural test • Both axial load & moment • Bottom of columns loading • Places of devices

  4. Outlines • Application of Device • Experiment Plan • Test Scheme • Loading & Measuring Devices • Calculation • Equations • Comparison of Calculation & real load

  5. Test Scheme • To examine precision • Fundamental Program • Design • The measuring device • Loading device M+N Real Load Compare Device Calculation

  6. Loading Device • Axial Load Axial & Moment • To Change N/M • Moving to change arm • Different locations • Different M direction • Rotating device N Arm Arm N & M

  7. Measuring Devices • Two devices • Circular • Rectangular • Rotated loading device • Calculation • Strain Stress • Stress N&M Integrate Linear

  8. Photos • Strain gage • Whole structure

  9. Outlines • Application of Device • Experiment Plan • Test Scheme • Loading & Measuring Devices • Calculation • Equations • Comparison of Calculation & real load

  10. Equations • Assumptions • Stress-Strain: linear • Plane cross-section* • Strain Distribution * Since no shear force on this section, this assumption is reasonable

  11. Equations • Assumptions • Stress-Strain: linear • Plane cross-section • Strain Distribution

  12. Equations

  13. Part Results • Compare: real & calculation Moment Comparison (Arm=14cm) Force Comparison (Arm=14cm) Real Calculation Real Calculation Moment (kN·m) Force (kN) Steps Steps

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