| Title |
Improved Model for Measurement of Displacements and Deformed Shapes of Beam Structures using Terrestrial Laser Scanning |
| Authors |
Lee Hong-Min ; Jung Dong-Jo ; Lee Im-Pyeong ; Park Hyo-Seon |
| Keywords |
Displacement Measurement ; Laser Scanning ; Structural Health Monitoring ; Safety and Serviceability |
| Abstract |
This paper presents an improved model to accurately measure displacements and deformed shapes of beam structures using terrestrial laser scanning (TLS). In comparison with previous model, this model is added of four components : 1) formulation of polynomial shape function, 2) application of boundary condition, 3) inducement of compatibility condition and 4) evaluation of error vector and determination of reasonable polynomial shape function. The proposed model is applied to displacement measurement of simply supported steel beams subjected to a point load. The performance of the proposed model is investigate by comparing the displacements obtained from the model and displacements directly measured from LVDTs. |