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論文名稱(中文) 鋼筋混凝土板受爆壓作用下之破壞分析
論文名稱(英文) Failure Analysis of the Reinforced Concrete Plate Subjected to Air Blast Loading
校院名稱 成功大學
系所名稱(中) 土木工程學系碩博士班
系所名稱(英) Department of Civil Engineering
學年度 98
學期 2
出版年 99
研究生(中文) 吳俊諺
研究生(英文) Jyun-Yan Wu
學號 n6697115
學位類別 碩士
語文別 中文
論文頁數 75頁
口試委員 指導教授-胡宣德
共同指導教授-戴毓修
口試委員-林文賓
口試委員-方中
中文關鍵字 爆炸荷載  鋼筋混凝土板  爆炸壓力波  LS-DYNA 
英文關鍵字 explosive load  shock wave  reinforced concrete slab  LS-DYNA 
學科別分類
中文摘要 爆炸災害對建築結構造成嚴重破壞,對此領域的研究上缺乏有系統性的規範,因此對結構的抗爆分析變得更加迫切。
本研究將針對:炸藥爆炸後其爆炸壓力波在無限域空間中的傳播進行模擬,並將數值模擬結果與經驗公式計算結果進行比較,驗證分析的可靠性。以及研究不同炸藥量的爆炸荷载對鋼筋混凝土板的破壞分析,找出破壞的情形。對爆炸荷載作用下鋼筋混凝土板破壞影響因素如鋼筋比、炸藥距離、混凝土強度進行分析,找出這些因素影響之規律。
研究結果顯示,高強度混凝土與鋼筋配筋率的降低,對結構系統的最大撓度與破壞情形能有效改善。
最後整理歸納,以提供未來相關學術研究及工程應用上之參考。
英文摘要 Blast can cause serious damage to building structure as well as heavy loss of live and property. It is increasingly necessary and in fact required to carry out extensive research in this field when increased terrorism and local conflicts become worse. The terrorist explosion activities are increasingly concerns which could harm the national security and the social stability. The blast effect on buildings is of widely interest to researchers and engineers all over the world. Accordingly, this study to the nonlinear finite element software LS-DYNA, by select adequacy the material parameters and equation of state (EOS) to perform numerical computation related to the explosive detonates in free air. And then to examine the dynamic characteristics of the reinforced concrete structures. The results of this study provide a valuable reference for engineering designers and researchers to precede the structural dynamic analysis.
論文目次 第一章 緒論 1
1.1 研究動機 1
1.2 文獻回顧 2
1.2.1爆炸作用原理的分析與研究 2
1.2.2結構構件的抗爆性能分析 3
1.3 研究方法與目的 4
1.4 論文架構 4
第二章 鋼筋混凝土的力學特性 7
2.1 混凝土的材料性質 7
2.1.1 混凝土單軸行為 7
2.1.2 混凝土雙軸行為 8
2.1.3混凝土三軸行為 8
2.2 鋼筋的材料性質 9
第三章 爆炸壓力波效應與傳播規律分析 17
3.1 爆炸壓力波之形成與傳播 17
3.2爆炸壓力波的理論與經驗公式 18
3.3爆炸壓力波數值模擬 20
3.3.1自由場爆炸分析 20
3.3.1.1材料模式 20
3.3.1.2 ALE描述法 22
3.3.1.3分析模型描述 23
3.3.1.4分析結果討論 24
3.4結論 25
第四章 鋼筋混凝土板受爆炸作用下之結構分析 37
4.1鋼筋混凝土模型 37
4.1.1鋼筋混凝土之鍵結 37
4.1.2分析模型描述 37
4.2 ALE方法與CONWEP算法之比較 38
4.2.1 CONWEP算法之介紹 38
4.2.2分析模型 38
4.2.2.1網格劃分 38
4.2.2.2初始與邊界條件 39
4.2.2.3定義材料失效模式 39
4.2.3分析結果與結論 39
4.3 鋼筋混凝土板之驗證 40
4.3.1文獻模型 40
4.3.2模擬模型 40
4.3.3分析結果 40
4.4網格收歛性分析 41
4.5模擬分析 41
4.5.1炸藥量對結構之影響 41
4.5.2配筋率對結構之影響 42
4.5.3炸藥距離對結構之影響 42
4.5.4混凝土強度對結構之影響 43
4.6結論 43
第五章 結論與建議 71
5.1結論 71
5.2未來研究建議 71
參考文獻 72
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