小梁的邊界條件處理 - 土木

By Caroline
at 2009-12-28T19:27
at 2009-12-28T19:27
Table of Contents
最近接到一個耐震詳評的案子,但在建模時,遇到一個小問題:
若在結構Y向的某些大梁,因為其對到的柱稍微有偏位(結構圖請參考下面的連結)
這種情形在力學行為上,可能得將其視為小梁,只用來傳遞力量。若真是如此,
是否可在ETABS模擬時,將此小梁對到偏柱的那端改成以hinge模擬(moment release),
較符合真實的接合行為。否則此小梁與長向的大梁固接時,不只要考慮長向大梁可能
會形成短梁效應而造成後續的分析困難,也跟真實的接合行為較不吻合?
不知版上的各位先進有何不同的看法或建議,也請各位不吝指教。
http://vspace.cc/file/DLK6U8TSRI2DGE2S.html
--
若在結構Y向的某些大梁,因為其對到的柱稍微有偏位(結構圖請參考下面的連結)
這種情形在力學行為上,可能得將其視為小梁,只用來傳遞力量。若真是如此,
是否可在ETABS模擬時,將此小梁對到偏柱的那端改成以hinge模擬(moment release),
較符合真實的接合行為。否則此小梁與長向的大梁固接時,不只要考慮長向大梁可能
會形成短梁效應而造成後續的分析困難,也跟真實的接合行為較不吻合?
不知版上的各位先進有何不同的看法或建議,也請各位不吝指教。
http://vspace.cc/file/DLK6U8TSRI2DGE2S.html
--
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