| 研究生: |
陳水柱 Chen, Shui-Chu |
|---|---|
| 論文名稱: |
以ASD法與LRFD法設計鋼結構建築之實例研究 A Case Study of Steel Building Design Using ASD and LRFD Methods |
| 指導教授: |
鍾興陽
Chung, Hsin-Yang |
| 學位類別: |
碩士 Master |
| 系所名稱: |
工學院 - 土木工程學系碩士在職專班 Department of Civil Engineering (on the job class) |
| 論文出版年: | 2010 |
| 畢業學年度: | 98 |
| 語文別: | 中文 |
| 論文頁數: | 262 |
| 中文關鍵詞: | 容許強度設計法 、極限設計法 、鋼骨大樓 、結構設計 、耐震設計 、風力設計 |
| 外文關鍵詞: | Allowable Strength Design, Load and Resistance Factor Design, Steel Multi-Story Building, Structural Design, Seismic Design, Wind Design |
| 相關次數: | 點閱:121 下載:0 |
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本論文以三棟不同樓高(七層樓、十四層樓、二十一層樓)且規則型的中型SMRF鋼骨大樓建築為結構設計範例,依據我國建築結構設計相關法規,採用AISC 2005年版的鋼構設計規範作為構件設計準則,三棟鋼骨建築範例分別以AISC 2005年版的容許強度設計法(ASD)與極限設計法(LRFD)來進行純鋼骨構架之結構設計,並比較此兩種設計法設計結果之差異。
依照我國耐震設計規範,七層樓與十四層樓鋼骨建築範例採用靜力分析設計,二十一層鋼骨建築範例則採用動力分析設計,並將其總橫力調整至靜力分析時總橫力之90%。由本論文三棟鋼骨建築範例的「初步設計結果」顯示,用LRFD法設計較ASD法平均節省總用鋼量約8.83%;「初步設計結果」再經過「實際施工便利性」、「斜撐效應」與「強柱弱梁」檢核而調整梁柱斷面得到「完成設計結果」,而「完成設計結果」顯示,七層樓與二十一層樓鋼骨建築範例,以LRFD法設計較ASD法平均節省總用鋼量約7.72%,而十四層樓鋼骨建築範例以LRFD法設計所節省的用鋼量更高。
This thesis utilized three middle-sized and regular-shaped steel SMRF multi-story buildings, which were 7-story, 14-story and 21-story high respectively, as the structural design examples. In addition to follow our country’s building design codes, the structural designs of the three steel buildings adopted Allowable Strength Design (ASD) and Load and Resistance Factor Design (LRFD) in 2005 AISC Specification for Structural Steel Buildings. Each steel building was designed by ASD and LRFD and the results from these two structural design methods were compared in this study.
According to our country’s seismic design code, the 7-story and 14-story buildings were analyzed and designed by Static Lateral Force Method. The 21-story building was analyzed and designed by Dynamic Method and the base shear force was scaled to match 90% of the base shear force from Static Lateral Force Method. The “prelminary design results” of the three steel buildings showed that, as compared to ASD, LRFD could averagely save about 8.83% in total steel weight. After the beam and column section adjustments from practical construction convenience, bracing effect and strong column-weak beam requirement, the “preliminary design results” were adjusted to the “final design results.” The “final design results” of the the 7-story and 21-story steel buildings showed that, as compared to ASD, LRFD could averagely save about 7.72% in total steel weight. For the design of the 14-story steel building, LRFD could save more steel in weight.
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校內:2015-08-30公開