| Title |
A Proposal for Displacement and Deformed Shape Measurement Model for Safety and Serviceability Monitoring of Structures using Terrestrial LiDAR |
| Authors |
Lee Hong-Min ; Park Hyo-Seon ; Lee Im-Pyeong ; Kwon Yun-Han |
| Keywords |
Structural Health Monitoring ; Safety and Serviceability ; Displacement Measurement ; Vision-based Monitoring |
| Abstract |
Structural monitoring is concerned with the safety and serviceability of the users of structures, especially for the case of high-rise building structures and infrastructures. When considering the safety of a structure, the maximum stress in a member due to live load, earthquake, wind, or other unexpected loadings must be checked not to exceed the stress specified in a code. Also, it will not fail at yield, excessively large deflections will deteriorate the serviceability of a structure. Therefore, to guarantee the safety and serviceability of structures, the maximum stress and deflection in a member must be monitored. For these reasons, numerous techniques have been studied on development of displacement measuring systems.
In this paper, a displacement and deformed shape measurement model is proposed for structural health monitoring using terrestrial LiDAR. The model consists of four distinct modules : data acquisition module, base-vector generation module, coordinate transformation coefficient generation module and deformed shape generation module. In addition to measuring maximum displacement, deformed shape of structure subjected to various loading can be obtained by the model. In a companion paper, the proposed model is applied to displacement measurement of simply supported steel beams subjected to a point load. |