近年來由於光學感測、微機電(Microelectromechanical Systems, MEMS)與計算機技術的快速發展，雷射掃描無論在速度、精度與取樣範圍上皆有長足的進展。具體而言，以散漫點雲為基礎的雷射掃描儀擁有遠距離、高取樣與高精度的優勢，適合以大量資料庫建立為基礎的幾何資訊蒐集，因此本文嘗試探索地面雷射掃描(Terrestrial Laser Scanning, TLS)於土木工程結構中常見之二維鋼筋混凝土版構件之變形量測精確度。本文以鋼筋混凝土版構件為研究主題其主要原因有二：其一，點雲散佈於二維幾何構件能得到比一維更均勻的資料以供分析，並精確反映微小變形與大變形的差異；其二，鋼筋混凝土版之整體變形與平整度較難以傳統單點式檢測儀器得知，其(於地震後之)受損情況亦同，本研究嘗試探索TLS點雲分析於版構件全域變形量化評估之可行性。
　　除監測儀器外，本研究亦輔以有限元素法與實驗結果比較，利用有限元素分析軟體ABAQUS，建立鋼筋混凝土版實尺寸模型進行分析觀察。為使模型中各材料參數設定所得出的結果能夠精確反映試體實際行為，本研究將實尺寸試驗之鋼筋混凝土版受力行為與ABAQUS 有限分析模型結果進行自互校正，以確保有限元模型之代表性，進而模擬整體受載過程中鋼筋混凝土版之力-位移關係，以佐證實驗所得的數據，也使得數值分析與實驗能夠互相驗證。

In recent years, because of the rapid development of optical sense, microelectromechanical systems and computer technology, laser scanning technology has significant progress that high speed, high precision and sampling range. In this study, focus on measuring the deformation of two dimensional of structural member by TLS and calculating the precision of TLS measurement. The study has two important topic using reinforced concrete slab. First, two dimensional point cloud spread geometry member can be uniform than the one dimensional data to be analyzed. And accurately reflect the difference between the small deformation and large deformation. Secondly, Traditional single-point detection measuring technique is difficult to obtain reinforced concrete slab of the overall deformation, flatness and damage. In the thesis, the feasibility of using TLS evaluate reinforced concrete slab of the overall deformation.
In addition to use monitoring instruments, the study also uses the finite element method to analysis. Use the finite element software “ABAQUS” to establish the real size model of reinforced concrete slab. To make the results of the analysis model can accurately reflect the actual behavior of the experimental specimen. Let the experimental specimen result and analysis model result mutually regulate. To ensure the representation of the finite element model. Further, investigate the force-displacement behavior of the model under axial compression and compare with true experimental result. Experiment and analysis support each other.

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