跳到主要內容

臺灣博碩士論文加值系統

(3.231.230.177) 您好!臺灣時間:2021/08/02 11:36
字體大小: 字級放大   字級縮小   預設字形  
回查詢結果 :::

詳目顯示

: 
twitterline
研究生:陳俊儒
研究生(外文):Chun-JuChen
論文名稱:鋼筋混凝土梁承受彎矩、剪力與扭力之分析與設計
論文名稱(外文):Analysis and Design of Reinforced Concrete Beam Subjected to Combined Bending, Shear, and Torsion
指導教授:方一匡方一匡引用關係
指導教授(外文):I-Kuang Fang
學位類別:碩士
校院名稱:國立成功大學
系所名稱:土木工程學系碩博士班
學門:工程學門
學類:土木工程學類
論文種類:學術論文
論文出版年:2012
畢業學年度:100
語文別:中文
論文頁數:126
中文關鍵詞:扭力組合載重AASHTO-LRFD軟化鋼筋體積比
外文關鍵詞:torsioncombined loadingAASHTO-LRFDsoftenvolumetric ratio of reinforcement
相關次數:
  • 被引用被引用:0
  • 點閱點閱:371
  • 評分評分:
  • 下載下載:21
  • 收藏至我的研究室書目清單書目收藏:0
本研究旨在探討矩形斷面鋼筋混凝土梁受到彎矩、剪力與扭力組合載重作用下之分析與設計,包括試體破壞強度與空間桁架模式理論驗證及探討破壞模式的分界點、ACI318和AASHTO-LRFD設計規範的印證和比較,及混凝土軟化效應之影響。
本研究試體分為8根承受彎矩和扭力之鋼筋混凝土矩形梁(TM試體)和13根承受剪力和扭力之鋼筋混凝土矩形梁(TV試體),TV試體中又分為實心試體6根與空心試體7根。TM試體主要變數為承受扭力和彎矩的比值(T/M);TV試體主要變數為承受扭力和剪力的比值(T/V),及實心斷面與空心斷面差異。
主要研究結果如下:(1)Elfgren互制式之預測較為保守。承受TM與TV的試體,實驗值和理論值的比值平均分別為1.27與1.29倍;但以Elfgren互制式推估TM中第三類破壞模式的強度可能太過於保守。(2)對破壞模式的分界點,以本研究TM試體為例,在 處,與實驗結果相符。(3)將規範設計之橫向和縱向鋼筋量轉換為總鋼筋體積比形式,結果顯示AASHTO-LRFD規範之設計值較接近實際用量。(4)TM試體中第三類破壞模式試體的軟化係數隨T/M比值增加而降低;以軟化後的極限主壓應變和實際破壞主壓應變比較,兩者下降趨勢接近,顯示混凝土確實受到軟化效應影響而提早產生壓碎破壞。
This thesis presents analysis and design of reinforced concrete beams subjected to combined bending (M), shear (V), and torsion (T).Comparison of experimental failure load with prediction of Elfgren’s interaction equation, the requirements of reinforcement according to AASHTO-LRFD (2010) and ACI 318-08 Code, and the softened effects of concrete under various combined loads are studied.
Two series of beam specimens were tested. One is TM series including 8 beams under various T/M ratios, and the other is TV series including 13 beams with solid and hollow sections under various T/V ratios. Both have 350×500mm cross section.
Results indicated that conservative estimate of failure load were found from Elfgren’s interaction equation. The ratios of test to prediction of failure loads for TM and TV series are 1.27 and 1.29, respectively. In TM series, failure modes changed at M=0.59Mo. The volumetric ratio of reinforcement requirements based on AASHTO-LRFD is closer to actual design than ACI 318 Code. As T/M ratio increased, the softening coefficient of TM series beams decreased. The softening effect of concrete is also evidenced from the measured of softened compressive strains at failure stage.
摘要 I
Abstract II
致謝 IV
目錄 VI
表目錄 VIII
圖目錄 IX
符號表 XI
第一章 緒論 - 1 -
1.1 前言 - 1 -
1.2 研究範圍與目的 - 2 -
第二章 文獻回顧 - 3 -
2.1 斜彎矩理論與空間桁架模式 - 3 -
2.2 混凝土軟化效應 - 11 -
2.3 ACI318設計規範 - 14 -
2.4 AASHTO-LRFD設計規範 - 14 -
2.5 鋼筋混凝土梁受到組合載重下之相關研究 - 18 -
第三章 空間桁架模式及設計規範之參數定義與數據計算 - 19 -
3.1 應用空間桁架模式之參數定義與計算 - 19 -
3.2 ACI 318-08設計規範之參數定義與計算 - 26 -
3.3 AASHTO-LRFD設計規範之參數定義與計算 - 33 -
3.4 試體表面主應變及主應變角計算 - 40 -
第四章 結果與討論 - 44 -
4.1 Elfgren桁架模式之破壞強度互制式及破壞模式與試驗值比較 - 44 -
4.2 設計規範中梁受到組合載重作用下設計值之驗證與比較 - 58 -
4.2.1 ACI 318規範 - 58 -
4.2.2 AASHTO-LRFD 2010規範 - 67 -
4.2.3 AASHTO-LRFD 2007規範 - 76 -
4.2.4 ACI 318及AASHTO-LRFD規範設計值之比較 - 79 -
4.3 表面應變及主應變角受扭矩比值之影響 - 85 -
4.3.1 表面應變受扭矩比值之影響 - 85 -
4.3.2 主應變角受扭矩比值之影響及與理論值的驗證 - 90 -
4.4 軟化對試體破壞行為之影響 - 107 -
第五章 結論 - 114 -
參考資料 - 116 -
附錄A【12、24】 - 120 -
1. Lessig, N. N., sStudies of Cases of Concrete Failure in Rectangular Reinforced Concrete Elements Subjected to Combined Flexure and Torsion, Design of Reinforced Concrete Structures,1961, pp. 229-271. (in Russian). Translated by Portland Cement Association, Foreign Literature Study No. 398.
2. Collins, M. P.; Walsh, P. F.; Archer, F. E.; and Hall, A. A., Reinforced Concrete Beams Subjected to Combined Torsion, Bending and Shear, UNICIV Report, No. R-14, University of New South Wales, 1965.
3. Elfgren, L., Reinforced Concrete Beams Loaded in Combined Torsion, Bending and Shear, Division of Concrete Structures, Publication 71:3, Chalmers University of Technology, Goteborg, Sweden, 1972.
4. Yudin, V. K., Determination of the Load-Carrying Capacity of Rectangular Reinforced Concrete Elements Sunbjected to Combined Torsion and Bending, Beton i Zhelezobeton (Concrete and Reinforced Concrete), V. 72, No. 3, June 1962, pp. 256-259. (in Russian). Translated by Portland Cement Association, Foreign Literature Study No. 377.
5. Elfgren, L.; Karlsson, I.; and Losberg, A., Torsion-Bending-Shear Interaction for Concrete Beams, Journal of the Structural Division, ASCE, V. 100, No. 8, 1974, pp. 1657-1676.
6. Robinson, J. R., and Demorieux, J. M., Essais de traction-compression sur modeles d'ame de pouter en Beton Arme, IRABA Report, Part 1, Institut de Recherches Appliquees du Beton de I'ame, 1968.
7. Robinson, J. R., and Demorieux, J. M., Resistance Ultimate du Beton de I'ame depouters en Double te en Beton Arme, IRABA Report, Part 2, Institut de Recherches Appliquees du Beton de I'ame, 1972.
8. Vecchio, F. J., and Collins, M. P., Stress-Strain Characteristic of Reinforced Concrete in Pure Shear, IABSE Colloquium, Advanced Mechanics of Reinforced Concrete, Final Report, International Association of Bridge and Structural Engineering, Zurich, Switzerland, pp. 221-225, 1981
9. Vecchio, F. J., and Collins, M. P., The Modified Compression Field Theory for Reinforced Concrete Elements Subjected to Shear, Journal of the American Concrete Institute, Proceedings, V. 83, No. 2, Mar-Apr 1986, pp. 219-231.
10. Hsu, T. T. C., and Mo, Y. L., Softening of Concrete in Torsional Members - Theory and Tests, Journal of the American Concrete Institute, Proceedings, V. 82, No. 3, May-June 1985, pp. 290-303.
11. Hsu, T. T. C., Nonlinear Analysis of Concrete Memberane Elements, Structural Journal of the American Concrete Institute, V. 88, No. 5, Sept-Oct 1991, pp. 552-561.
12. 曾品彰,「高性能鋼筋混凝土梁在剪力與扭矩組合載重下之承力行為研究」,碩士論文,國立成功大學土木工程研究所,台南,2004
13. 邱浩然,方一匡,朱信澈,曾品彰,「鋼筋混凝土構件受扭矩與剪力組合載重作用之行為」,中國土木水利工程學刊,第十八卷,第二期,第219-232頁,2006
14. 邱浩然,「配置低鋼筋量之鋼筋混凝土梁受扭力、剪力與彎矩組合載重作用之研究」,博士論文,國立成功大學土木工程研究所,台南,2007
15. ACI Committee 318, Building Code Requirements for Structural Concrete (ACI 318-71), American Concrete Institute, Farmington Hills, MI, 1971, 78 pp.
16. ACI Committee 318, Building Code Requirements for Structural Concrete (ACI 318-95) and Commentary, American Concrete Institute, Farmington Hills, MI, 1995, 369 pp.
17. ACI Committee 318, Building Code Requirements for Structural Concrete (ACI 318-02) and Commentary, American Concrete Institute, Farmington Hills, MI, 2002, 443 pp.
18. ACI Committee 318, Building Code Requirements for Structural Concrete (ACI 318-05) and Commentary, American Concrete Institute, Farmington Hills, MI, 2005, 430 pp.
19. American Association of State Highway and Transportation Official, AASHTO-LRFD Bridge Design Specification and Commentary, 5th edition, Washington, D. C., 2010, 1635 pp.
20. American Association of State Highway and Transportation Official, AASHTO-LRFD Bridge Design Specification and Commentary, 4th edition, Washington, D. C., 2007, 1520 pp.
21. Rahal, K. N., and Collins, M. P., Experimental Evaluation of ACI and AASHTO-LRFD Design Provisions for Combined Shear and Torsion, ACI Structural Journal, V. 100, No. 3, May.-June. 2003, pp. 277-282.
22. Rahal, K. N., Evaluation of AASHTO-LRFD General Procedure for Torsion and Combined Loading, ACI Structural Journal, V. 103, No. 5, Sep.-Oct. 2006, pp. 683-692.
23. Rahal, K. N., Longitudinal Steel Stresses in Beams Due to Shear and Torsion in AASHTO-LRFD Specifications, ACI Structural Journal, V. 102, No. 5, Sep.-Oct. 2005, pp. 689-698.
24. 張建偉,「配置不對稱撓曲鋼筋之梁在彎矩與扭矩組合載重下的承力行為研究」,碩士論文,國立成功大學土木工程研究所,台南,2004
25. 邱浩然,方一匡,張建偉,「鋼筋混凝土構件受扭力與彎矩組合載重作用之行為」,中國土木水利工程學刊,第十九卷,第四期,第567-577頁,2007
26. ACI Committee 318, Building Code Requirements for Structural Concrete (ACI 318-08) and Commentary, American Concrete Institute, Farmington Hills, MI, 2008, 465 pp.
27. Hsu, T. T. C., Unified Theory of Reinforced Concrete, Boca Raton, FL: CRC Press, 1993, 313 pp.
28. Varney, J. C.; Brown, M. D.; Bayrak, O.; and Poston, R. W., Effect of Stirrup Anchorage of Shear Strength of Reinforced Concrete Beams, ACI Structural Journal, V. 108, No. 4, July-Aug 2011, pp. 469-479.
連結至畢業學校之論文網頁點我開啟連結
註: 此連結為研究生畢業學校所提供,不一定有電子全文可供下載,若連結有誤,請點選上方之〝勘誤回報〞功能,我們會盡快修正,謝謝!
QRCODE
 
 
 
 
 
                                                                                                                                                                                                                                                                                                                                                                                                               
第一頁 上一頁 下一頁 最後一頁 top