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陳逵，王國林，張振浩

（ 長沙理工大學 土木工程學院 ，湖南 長沙 410000)

摘   要 ：既有幕墻結構檢測對于鋼龍骨轉接件節點位置的選擇各個規范并未作出明確的要求，考慮到鋼龍骨整體結構冗余度較高，各個轉接件節點的重要性也不盡相同。為了對幕墻鋼龍骨轉接件進行高效 、快速檢測需要合理選擇轉接件節點的檢測位置，采用變換荷載路徑法( AP 法）計算四個典型鋼龍骨轉接件的重要性系數、區域重要性系數及區域范圍轉接件失效后的頻率。結果表明：整體幕墻轉接件重要性系數平均值比值隨著轉接件高度的增加而增大；最外側轉接件重要性系數隨著轉接件高度位置與幕墻整體寬度比值的增大逐漸增大；隨著幕墻整體高度增大外側轉接件重要性系數逐漸減小；幕墻外側區域重要性系數大于內側區域重要性系數， 通過等效應力與改進的模態靈敏度兩種響應獲得的區域重要性具有較好的一致性。

關鍵詞：幕墻結構 ；變換荷載路徑法(AP 法）；等效應力；靈敏度；重要性系數

中圖分類號：TU312 + . 3     

文獻標志碼：A     

文章編號：1005- 8249  (2024)  03- 0101- 05

DOI：10. 19860/j.cnki.issn1005 - 8249.2024.03 .020

 

CHEN Kui , WANG Guolin , ZHANG Zhenhao

(Institutes of Technology of Changsha , Changsha 410000 , China)

Abstract : The detection of the existing curtain wall structure does not make clear requirements for the selection of the node position of the steel keel adapter. Considering the high redundancy of the overall structure of the steel keel , the importance of each adapter node is not the same. In order to carry out efficient and rapid detection of curtain wall steel keel connectors , it is necessary to reasonably select the detection position of the connector nodes. The importance coefficient , regional importance coefficient and frequency of the four typical steel keel connectors after failure are calculated by using the variable load path method (AP method) . The results show that the ratio of the average value of the importance coefficient of the integral curtain wall adapter increases with the increase of the height of the adapter; the importance coefficient of the outermost connector increases with the increase of the ratio of the height of the connector to the overall width of the curtain wall. As the overall height of the curtain wall increases , the importance coefficient of the outer adapter gradually decreases; the importance coefficient of the outer region of the curtain wall is greater than that of the inner region. The regional importance obtained by the equivalent stress and the improved modal sensitivity is in good agreement.

Keywords : curtain wall structure; load path transformation method; equivalent stress; sensitivity; importance coefficient

*基金項目： 湖南省自然科學基金面上項目  (2018JJ2443) 。

作者簡介： 陳    逵  (1979—) ,   男 ，博士 ，主要從事結構檢 測及加固 、結構損傷分析等方面研究。

通信作者： 王國林  (1996—) ,   男 ，碩士研究生 ，主要從事 結構損傷分析研究。

收稿日期：2023- 01 - 06