• 沒有找到結果。

以下提出幾點建議以供後續研究與探討:

1. 本研究之梯形接合板與 H-型斷面斜撐構材之載重遲滯已獲建立,若採 梯形接合板與其他重型斷面做接合,其載重遲滯迴圈、整體強度與韌性 行為建立亦是重要研究項目。

2. 本試驗試體之斜撐構材皆採構架面外挫屈型式,若採構架面內挫屈之型 式,其相關接合細部設計則有需要更進一步研究與發展。

3. 特殊同心斜撐構架之斜撐構材為主要消能桿件,為使斜撐構材可穩定發 展消能行為,其擔任力量傳遞者之接合板則需透過強度檢核與接合細 部設計以及斜撐端部面外凹折之變形提供,若直接針對斜撐構材本身 端部進行凹折變形之提供,則應有不同之行為產生,以及簡化與梁、

柱桿件接合設計亦是值得進行深入研究。

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國科會補助專題研究計畫項下出席國際學術會議心得報告

日期: 99 年 10 月 2 日

一、參加會議經過

台灣、韓國與日本三個國家為增進建築結構地震工程研究之學者與專家彼此間 之學術交流,於 2001 年起開始舉辦聯合研討會,該次為第三屆的建築結構地震工程 聯合研討會。爾後每年舉辦一次,由日本、韓國與台灣輪流舉辦,基本上每個國家 有 10 篇邀請論文發表。此次研討會由日本舉辦,為第十一屆,在日本京都市舉辦,

由京都大學建築與建築工程學系主辦,並由京都大學的 Global for Education and Research on Human Security Engineering for Asian Megacities 資助。兩天的會議型式為 論文發表,共有 30 篇邀請論文發表,參加人員有五十餘人。

筆者為此次台灣方面的聯絡人,並已負責前兩次的台灣聯絡人,且已於 2007 計畫編號 NSC98-2625-M-009-009

計畫名稱 高性能金屬斜撐結構系統之耐震性能研究

子計畫:特殊同心斜撐構架之斜撐構材耐震性能研究(II) 出國人員

姓名 陳誠直 服務機構

及職稱 交通大學土木系教授 會議時間 98 年 12 月 3 日至

98 年 12 月 5 日 會議地點 日本京都市

會議名稱

(中文) 第十一屆韓國-台灣-日本建築結構地震工程聯合研討會 (英文) Eleventh Korea-Taiwan-Japan Joint Seminar on Earthquake Engineering for Building Structures

發表論文 題目

(中文) 鋼骨箱型柱內橫隔板電熱熔渣焊之有限元素分析

(英文) Finite Element Analysis of Electro-Slag Welding for Diaphragms in Steel Box Column

年負責舉辦第九屆日本-韓國-台灣建築結構地震工程聯合研討會,於國立交通大學圓 滿完成。此次研討會聯絡人主要負責會議進行的安排、事務協調與論文集的出版等。

二、與會心得

台灣地處環太平洋地震帶,不可避免的建築結構物將遭受強烈地震的侵襲,因 此建築結構地震工程的研究極為重要。參加本次研討會的心得有下列幾點:

1. 因傳統上皆僅規劃一會議場地且參與者皆為會議主題相關領域之學者,於論文 發表之討論甚為踴躍。

2. 論文發表之議題皆為有關建築結構地震工程之研究成果與相關技術,與會者較 為有興趣全程參加。

3. 論文發表鼓勵資淺之學者,讓與會的資淺學者有學習的機會。大會並設有最佳 論文獎以鼓勵資淺學者。

4. 日本論文發表的研究題目較為先進且質量較佳,原因為日本於地震工程有豐富 的研究經驗,且有充裕的研究經費、設備與研究人力等。

5. 韓國發表的論文品質較以往已有明顯進步且深入,此亦可由國際期刊投稿數量 之增加看出端倪。

6. 此次研討會首次邀請 keynote 演講,韓國為 Dr. Dong-Guen Lee 教授演講採用超 元素的有效分析建築結構,與台灣黃世建教授演講台灣校舍鋼筋混凝土建築物 的耐震補強,皆有深入剖析研究過程與成果。

7. 此次研討會的論文主題主要有鋼與複合結構、鋼筋混凝土結構、系統控制、火 害研究、計算與網路等,皆獲與會者熱烈的討論。

筆者發表的論文為「鋼骨箱型柱內橫隔板電熱熔渣焊之有限元素分析」,主要 探討影響結構行為之銲接缺陷參數。發表後有多位學者發問,顯示對此研究的興趣。

發表之文章為探討銲接瑕疵於鋼骨箱型柱板破裂行為之影響,採有限元素分析,以

綜合有限元素之參數研究結果顯示,裂縫尖端開口位移(CTOD)、應力三軸度與破裂 指數可顯示出電熱熔渣焊接缺陷所引起可能的破壞位置;較小的電熱熔渣焊接之熔 入半徑將使 CTOD 值增大,而增大電熱熔渣焊道開裂之可能;較大之電熱熔渣焊道 水平或垂直偏心將增大 CTOD 值、應力三軸度與破裂指數,更會增加柱板破裂之可 能性,由最大主軸應力分佈亦可發現此現象;側墊板間隙及鋼梁翼板相對於內橫隔

綜合有限元素之參數研究結果顯示,裂縫尖端開口位移(CTOD)、應力三軸度與破裂 指數可顯示出電熱熔渣焊接缺陷所引起可能的破壞位置;較小的電熱熔渣焊接之熔 入半徑將使 CTOD 值增大,而增大電熱熔渣焊道開裂之可能;較大之電熱熔渣焊道 水平或垂直偏心將增大 CTOD 值、應力三軸度與破裂指數,更會增加柱板破裂之可 能性,由最大主軸應力分佈亦可發現此現象;側墊板間隙及鋼梁翼板相對於內橫隔