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題名 | 中空鋼筋混凝土橋柱之力學行為=Mechanical Behavior of Hollow-Section Bridge Columns |
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作者 | 蔡崇興; 陳清祥; 黃季仁; 陳貴麒; Tsai, C. S.; Chen, Ching-shyang; Huang, Chi-jen; Chen, Kuei-chi; |
期刊 | 逢甲學報 |
出版日期 | 19990600 |
卷期 | 35 1999.06[民88.06] |
頁次 | 頁37-59 |
分類號 | 440.328 |
語文 | chi |
關鍵詞 | 地震; 橋柱; 圍束作用; 非線性分析; 鋼筋混凝土; 力學分析; Earthquake; Bridge pier; Confined effect; Nonlinear analysis; Reinforced concrete; Mechanical analysis; |
中文摘要 | 鋼筋混凝土之力學行為非常複雜, 尤其在非比例載重下如地震的反覆運動更顯其 複雜性。如從材料之觀點而言,大致可把鋼筋混凝土分為鋼筋及混凝土兩個部分。對於鋼筋 之性質, 可以利用經實驗印證過之雙塑性面模式( two-surface model )予以精確的模擬 。然而對於混凝土之特性至今尚無精確之數學模式予以量化。本文即提出一新的數學模式將 圍束混凝土之特性加以模擬。所提出之模式相當簡單且能將混凝土之非線性行為從小應變至 破壞予以全程之模擬,並與實驗結果相比較,獲得相當準確之結果。從各個材料之特性及相 互關係,可以容易推得任何形狀斷面之鋼筋混凝土樑柱系統的非線性勁度矩陣。所推演之方 程式很容易地可以被納入既有之有限元素系列,用於分析整個結構物之行為而無須太多的計 算。 |
英文摘要 | The behavior of reinforced concrete is very complicated, especially for non-proportional loadings during earthquakes. From the perspectives of material mechanics, reinforced concrete can be divided into steel and concrete materials. The characteristics of steel material can be modeled by the two-surface model. However, there is no satisfactory material model for confined concrete. In this paper, a new mathematical model has been prpposed to simulate the behavior of confined concrete. Accurate results have been achieved by comparing with experiments. Furthermore, the relationship of the moment to the curvature has also been obtained in virtue of the finite element method without any difficulty. The interactive behavior of these two materials can be simply simulated. Also, presented in this paper is the behavior of reinforced concrete bridge piers with different cross sectinos subjected to the axial force and the bending moments in two directions. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。