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研究生: 丁春生
Chun-Sheng Ting
論文名稱: 鋼筋混凝土梁扭力設計之探討
A Study for the Torsion Design of Reinforced Concrete Beam
指導教授: 潘誠平
Chan-Ping Pan
口試委員: 郭瑞芳
Juei-Fang Kuo
鄭蘩
Van Jeng
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: 2007
畢業學年度: 95
語文別: 中文
論文頁數: 90
中文關鍵詞: 薄膜元素板殼元素結構分析扭力設計
外文關鍵詞: membrane, shell, structural analysis, torsion design
相關次數: 點閱:152下載:10
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  • 論文摘要

    鋼筋混凝土梁之扭力設計一直以來是結構工程師最感無力也是最不易妥善處理的問題,因為以往雖然有相關的扭力理論,但結構分析程式也很難正確模擬,就算有分析程式可取得較為正確的扭力值,然亦不易應用於建築結構之整體設計工作,故鋼筋混凝土梁之扭力設計一直未能受到結構設計者的正視。
    所幸,在電腦科技的進步及相關軟體的更新後,如今我們已然可以利用新版的結構分析程式,正確的取得可靠的扭力資料,同時加以設計,且一併探討規範對於扭力設計的相關規定及其適用性。


    ABSTRACT

    Torsion designs are not so familiar to practical engineers. The relative theories exist but not correctly applied. The ordinary structural analysis can not obtain correct torsions for members due to the rigid floor assumption. A study is made to compare the torsions obtained in different models. The models include membrane and shell for floor models. The maximum torsions for design is also studied.
    Due to the improvement of analysis programs, the correct torsions can be obtained by applying appropriate models. The redistribution of torsions is challenged by comparing to moments and shears. A more rational torsion designs are expected in the future.

    目 錄 摘 要………………………………………………………………… I ABSTRACT……………………………………………………………… II 誌 謝……………………………………………………………… III 目 錄………………………………………………………………… IV 圖目錄……………………………………………………………… VII 表目錄………………………………………………………………… IX 第 1 章 緒論…………………………………………………………1 1.1 研究動機………………………………………………………1 1.2 研究目的………………………………………………………2 1.3 研究內容………………………………………………………3 第 2 章 扭力理論的發展……………………………………………4 2.1 鋼筋混凝土扭矩強度之發展…………………………………4 2.2 鋼筋混凝土梁之開裂扭矩強度………………………………10 2.3 鋼筋混凝土梁之極限扭矩強度………………………………13 2.4 鋼筋混凝土梁承受組合載重極限扭矩強度發展……………16 2.5 鋼筋混凝土之扭轉勁度………………………………………28 第 3 章 分析程式簡介………………………………………………32 3.1 前言……………………………………………………………32 3.2 ETABS主要功能介紹………………………………………… 33 3.2.1 ETABS特點概述…………………………………………33 3.2.2 ETABS的物件基礎………………………………………34 3.2.3 ETABS的分析功能………………………………………36 3.2.4 ETABS的設計功能………………………………………38 3.2.5 ETABS的優缺點…………………………………………39 第 4 章 案例分析結果與探討………………………………………41 4.1 前言……………………………………………………………41 4.2 模擬案例一……………………………………………………41 4.2.1 前言…………………………………………………… 41 4.2.2 案例概述與基本資料………………………………… 42 4.2.3 結構分析與比較……………………………………… 42 4.2.3.1 桿件彎矩比較…………………………………… 42 4.2.3.2 桿件剪力比較…………………………………… 43 4.2.3.3 桿件扭力比較…………………………………… 44 4.2.3.4 小結……………………………………………… 44 4.3 模擬案例二……………………………………………………45 4.3.1 前言…………………………………………………… 45 4.3.2 規範對於扭力之相關敘述及規定…………………… 45 4.3.3 案例概述與基本資料………………………………… 47 4.3.4 結構分析結果說明…………………………………… 48 4.3.4.1 桿件扭力說明…………………………………… 48 4.3.4.2 桿件扭力設計說明……………………………… 48 4.3.4.3 扭力設計的簡化………………………………… 49 4.3.3.4 小結……………………………………………… 49 第 5 章 結論與建議……………………………………………… 51 5.1 結論………………………………………………………… 51 5.2 建議………………………………………………………… 53 參考文獻 …………………………………………………………… 54

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