研究生: |
蘇瑋曜 Wei-Yau Su |
---|---|
論文名稱: |
以數值積分法分析鋼筋混凝土裂縫之行為 Using The Method of Numerical Integration to Analysis The Adoption of R.C Cracks |
指導教授: |
潘誠平
Chan-Ping Pan |
口試委員: |
廖國偉
Kuo-Wei Liao 蔡幸致 Hsing-Chih Tsai |
學位類別: |
碩士 Master |
系所名稱: |
工程學院 - 營建工程系 Department of Civil and Construction Engineering |
論文出版年: | 2013 |
畢業學年度: | 101 |
語文別: | 中文 |
論文頁數: | 133 |
中文關鍵詞: | SAP2000 、裂縫 、數值積分 、勁度矩陣 |
外文關鍵詞: | SAP2000, cracks, numerical integration, stiffness matrix |
相關次數: | 點閱:227 下載:1 |
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混凝土屬一種複雜的複合材料,雖具有很高的可塑性及抗壓強度,但其材料抗拉強度卻僅為抗壓強度的10%~15%,故當其受到極大外力荷載時,混凝土即漸漸會有裂縫的產生。因此本文中,將進一步了解鋼筋混凝土裂縫產生時,混凝土軟化與勁度之折減。
本研究中,將利用SAP2000有限元素法套裝軟體,配合鋼筋Link與混凝土Plane元素來模擬,分析過程中將考慮鋼筋與混凝土裂縫發生行為、握裹力與滑移運動,並求取其鋼筋混凝土裂縫在不同深度及位置時之切線勁度矩陣。
最後以SAP2000之勁度矩陣值作為檢驗,將數值積分之結果,配合二分逼近法推算裂縫周圍零應力區之角度,探討其鋼筋混凝土構件非線性行為之影響與主要勁度值變化。
The concrete is one complex compound materials, although with the very high plasticity and the compressive strength, but its material tensile strength only is actually the compressive strength 10%~15%, therefore when it receives the enormous external force load, the concrete namely can have the crack production gradually.Therefore in this article, further understood when the reinforced concrete crack produces, concrete softening and stiffness of the reduction.
In this research, will use the SAP2000 finite element method coverall software, with steel bar Link and the concrete Plane element to simulates, in the analysis process considered the behavior of reinforced concrete cracks occur , the bond stress and the slipping movement, then to strike the tangent stiffness matrix of reinforced concrete crack in the different depth and the position.
Finally takes the examination stiffness of matrix value by the SAP2000, the results of the numerical integration, with the bisection method to calculation crack angle of the zero stress zone, explore its nonlinear behavior of reinforced concrete and the main impact of changes in stiffness values.
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