| 研究生: |
黃文駿 Huang, Wen-Chun |
|---|---|
| 論文名稱: |
RC翼牆柱試驗與軟化桁架模式分析 Testing and Analysis with Softened Truss Model of Reinforced Concrete Column with Wing Walls |
| 指導教授: |
劉玉文
Liu, Yuh-Wehn |
| 學位類別: |
碩士 Master |
| 系所名稱: |
規劃與設計學院 - 建築學系 Department of Architecture |
| 論文出版年: | 2002 |
| 畢業學年度: | 90 |
| 語文別: | 中文 |
| 論文頁數: | 116 |
| 中文關鍵詞: | 剪力變形 、軟化桁架模式 、極限強度 、耐震試驗 、翼牆柱 |
| 外文關鍵詞: | shear deformation, softened truss model, ultimate strength, seismic testing, column with wing walls |
| 相關次數: | 點閱:143 下載:3 |
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台灣位處於地震最活躍的環太平洋地震帶上,地震發生相當頻繁,從近年來的震災調查報告中顯示,學校建築所受之震害程度遠大於其他類型之建築,而其破壞主要集中在建築底層之柱在平行走廊方向被剪斷或彎斷,造成建築物之嚴重崩塌。相對的,有些校舍在柱兩側配置適當的壁體,形成所謂翼牆柱(column with wing walls),對校舍平行走廊方向之耐震能力有很大的幫助,因此在歷次地震中,損害非常輕微。本研究除繼續探討劉國強博士論文所作一體完成之翼牆柱耐震試驗資料分析外,對既有柱以翼牆補強,而翼牆與柱之混凝土不同時期澆注時,對其耐震行為有何影響進行試驗分析。本研究之試驗主要配合現有之試驗設備,規劃6支分期澆注之翼牆柱試體,以重覆漸大加載試驗方式研究其受側力之破壞模式,其變因包括有翼牆寬、翼牆厚及牆鋼筋比等變因。分析時,嘗試以軟化桁架模式(Softened Truss Model)來分析,探討翼牆柱承受水平力作用下之剪力強度與剪力變形,其結果與試驗破壞包絡線比較,以驗證其正確性。
本研究所獲得之初步結論如下:
一、翼牆柱增設單側翼牆之寬度為柱寬的一倍時,則翼牆柱元件之耐震效能約提升為原來柱耐震能力之2倍。
二、當翼牆寬度大於柱寬度時,其分析模式以剪力牆之抗剪效應處理為佳;若翼牆寬度小於柱寬度時,則以擴大柱斷面之情形分析為佳。
三、設置翼牆時,應儘量使其總面積大於柱斷面積且牆寬亦大於柱寬,如此設置下,其抗剪能力會明顯提升。
四、分灌與一體翼牆柱灌注試體比較可發現:分灌試體之極限強度約可達一體灌注試體之80~90%,故分灌試體亦可發揮耐震能力提升之效果。
五、以軟化桁架模式分析翼牆柱受側向力作用下之剪力變形,將各翼牆試體之預測結果與試驗結果曲線(P-△S)比較,對於牆寬大於柱寬之試體顯得相當吻合。
As Taiwan located at the Circum-Pacific seismic zone, earthquakes occur very frequently. The investigation of seismic damage in recent years revealed that the damage of school buildings was much more serious than others due to the shear failure of the columns in the direction paralleled to the corridor at the bottom floor. Oppositely, some buildings were damaged very lightly because of the applicable walls set at both sides of the columns, which formed the so-called column with wing walls, that strengthened the aseismic ability in the direction paralleled to the corridor of the buildings very much.
This paper is concerned with the investigation of the seismic behavior of column with wing walls subjected to cyclic loading. Fifteen specimens were studied, including six with column and wing walls cast individually and nine with column and wing walls cast as a unity. The influence of the width of wing walls, the thickness of wing walls and the reinforcement ratio of wing walls were fully investigated.
Softened truss model was used to analyze the shear strength and the shear deformation of the specimens subjected to cyclic loading. And the analytical results were compared to the test result.
The conclusions of this paper are:
1.The ultimate seismic resistant force of column with wing walls ascended one time provided that each side of wing walls possessed the same width as the column.
2.The structural behavior of a column with wing wall tends to column model when the wing wall width of each side is less than the column width. However, the shear resistant effect is affirmative when the width of wing wall is increased.
3.The shear resistance of column with wing walls ascended obviously when both the sectional area and width of wing walls were larger than column.
4.The test result revealed that the ultimate strength of the specimens with column and wing walls cast individually were about 80~90% of that of the specimens with column and wing walls cast as a unity.
5.The comparison between the test result and the analytical result for the shear strength and the shear deformation with softened truss model were found to be in good agreement.
參考文獻
【1】「一九九九集集大地震災害調查研討會論文集」,國科會工程處科技推展中心,國立成功大學,民國八十八年十一月五、六日,PA01~PA55
【2】劉國強,「鋼筋混凝土翼牆柱之耐震行為與分析模式研究」,國立成功大學建研所博士論文,指導教授劉玉文、姚昭智教授,民國九十一年元月,台南
【3】Park R. and T. Paulay, 「Reinforced Concrete Structures」, by John & Sons. Inc., Canada, 1975
【4】Wang Chu- Kia and Charles G. Salmon, 「Reinforced Concrete Design」, Fourth Edition, New York, U.S.A., 1985
【5】吳政哲,「鋼筋混凝土槽縫牆之剛度研究」,國立成功大學建築研究所碩士論文,指導教授劉玉文教授,台南,民國八十七年
【6】Masuo K., “Estimation of Deformation Capacity of Reinforced Concrete Columns failing in Flexure”, Earthquakes Engineering, Tenth World Conference, pp4359, pp4360, Balkenm, Rcttendam,1992.
【7】TAKIGUCHI Katsuki, Koshior NISHIMURA and Norio NAKANISHI, “Diagonal Transfer Capacity of Compressive Force in Concrete of R/C Columns”, 12 WECC, Pp 0682, Newzland, 2000.
【8】郭雄銘,「鋼筋混凝土低型剪力牆承受側反向重覆載重之行為研究」,成功大學建築研究所碩士論文,許茂雄教授指導,民國75年5月。
【9】許茂雄,黃錦旗,郭雄銘,”Experimental and Theoretical Study of Low-Rise Reinforced Concrete Shear Walls Without Boundary Elements”,日本第七回地震工程年會,日本東京,1986,12。
【10】Lafas Ioannis D. and Kotsovos Michael D. “Strength and Deformation Characteristics of Reinforced Concrete Walls under Load Reversals”,ACI Structural Journal,V.87.No.6. pp716~pp726, November-December 1990.
【11】賴慶鴻,「鋼筋混凝土剪力強度與剛度之試驗與分析」,成功大學建築研究所碩士論文,許茂雄教授指導,民國88年6月。
【12】「既存鐵筋混凝土構造物耐震補強手冊」,日本混凝土學會,1984年。
【13】Ohmiya. M. and Hayashi. S. “Shear and Flexural Strength of Columns with Wing Walls”, 25th Conf. of On Our World in Concrete and Structures. pp493- pp500, August,2000, Singapore.
【14】The Japan Special Building Safety Center Foundations, Design Recommenda -tion For Repair and Strengthening of Existing Reinforced Buildings, 1990.
【15】郭正一,「低型剪力牆振動臺試驗」, 國立成功大學土木工程研究所,碩士論文,指導教授莫詒隆教授,中華民國八十四年六月。
【16】詹啟明,「軟化模式對低型剪力牆力學行為之影響」,國立成功大學土木工程研究所,碩士論文,指導教授莫詒隆教授,中華民國八十四年六月。
【17】蕭文昌,「材料強度對低型剪力牆動態行為之影響」,國立成功大學土木工程研究所,碩士論文,指導教授莫詒隆教授,中華民國八十二年六月。
【18】Hsu. T. T. C., and Y. L. Mo, “Unified Theory of Reinforced Concrete”, Seminar on concrete Structures, Department of Civil Engineering, National Cheng Kung University, VOL. 1, August 10-12, 1992.
【19】蔡萬來,「921集集大地震─建築物破壞分析與對策」,詹氏書局,民國
八十九年十月。
【20】Huang Chin-Chi ,and Maw-Shyong Sheu, “Experimental and Theoretical Study of Low-Rise R.C. Shear walls under Horizontal and Axial Compression Force”, US-Korea Joint Seminar on Critical Engng.Systems, pp550~560, Seoul, Korea. 1986/5.
【21】Huang Chin-Chi ,Maw-Shyong Sheu, and Shyong-Ming Guo, “Experimental and Theoretical Study of Low-Rise R.C. Shear walls Without Boundary Elements”, The 7th Japan Earthquake Engrg. Symposium, pp1171-1176, Tokyo, Japan, 1982/12.
【22】Salonikios Thomas N., Andreas J. Kappos, Ioannis A. Tegos, and Georgios G. Penelis,“Cyclic Loud Behavior of Low-Slenderness Reinforced Concrete Walls: Design and Test Results”, ACI Structural Journal. V. 96. No.4, pp649~ pp660, July-August, 1999.
【23】Chiou Yaw-Jeng ,“Earthquake Resistance Experiment and Failure Evaluation for Frame-shear Wall of School Building”, First International Conference on planning and Design, Tainan, Taiwan. Nov.3~4 2001.
【24】Mickleborough Neil C., Feng Ning, and Chun-Man Chan,“Prediction of Stiffness of Reinforced Concrete Shear Walls Under Service Loads”, ACI Structural Journal. V. 96. No.6. pp1018~pp1025. November-December 1999.
【25】李威璁,「含牆鋼筋混凝土構架試驗研究」,國立成功大學土木工程研究所碩士論文,指導教授邱耀正教授,民國九十年七月
【26】Hsu. T. T. C., and Y. L. Mo, “Softening of Concrete in Low-Rise Shear Walls”, Journal of the American Concrete Institute, VOL.82, No.6, pp.883-pp889, November-December, 1985
【27】Hwang, S.J., W.H.Fang , H.J.Hung , H.W.Yu, “Analytical Model For Predicting Shear Strength of Squat Walls.” ASCE, Journal of structural Engineering, Vol. 127, NO.1, pp43-pp50, January 2001.
【28】Hamahara M., S Iida, R Uchida, H Suetsugu, “Arch Mechanism in Reinforced Concrete Beams”, 26th Conference on Our Would in Concrete & Structures, PP269~ PP276, 27-28 August, 2001, Singapore.
【29】李宏仁,「鋼筋混凝土耐震梁柱接頭剪力強度之研究」,國立台灣科技大學營建工程系博士論文,指導教授黃世建教授,民國八十九年五月
【30】Mo Y.L., and Rothert H.,“Effect of Softening Models On Behavior of Reinforced Concrete Frame Shear walls.”ACI, Structural Journal., 94(6), pp730-pp744, 1997.
【31】彭生富,「波浪型鋼板耐震剪力牆之結構行為」,國立成功大學土木工程研究所,博士論文,指導教授莫詒隆教授,台南,民國八十九年六月
【32】施健泰,「建築RC構架之補強實驗研究」,國立成功大學土木工程研究所,碩士論文,指導教授邱耀正教授,台南,民國九十一年六月