- 摘 要
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(1 同濟(jì)大學(xué)土木工程學(xué)院建筑工程系,上海 200092;2 中國(guó)建筑科學(xué)研究院,北京 100013)
[摘要]房屋結(jié)構(gòu)中的柱上下錯(cuò)位且尺寸受限時(shí),可采用內(nèi)置型鋼的混凝土搭接柱轉(zhuǎn)換結(jié)構(gòu)實(shí)現(xiàn)力的傳遞。采用試驗(yàn)和數(shù)值模擬方法,研究此種結(jié)構(gòu)受力性能。研究表明,搭接塊的極限承載力隨含鋼率增加而提高,對(duì)常見(jiàn)的搭接比例不大于0.52的情況,搭接塊的極限承載力可提高20%~40%。在含鋼率相同的情況下,搭接塊的極限承載力隨型鋼水平組件橫截面面積的增大而增大,隨搭接比例的增大而減小。
[關(guān)鍵詞]搭接柱轉(zhuǎn)換結(jié)構(gòu); 搭接塊; 型鋼; 試驗(yàn)研究; 數(shù)值模擬
中圖分類(lèi)號(hào):TU398+.9 文獻(xiàn)標(biāo)識(shí)碼:A 文章編號(hào):1002-848X(2014)15-0045-06
Experimental study and FEM analysis of the overlapping column transfer structure with encased structural steel
Lin Feng1, Sun Wenbin1, Zhao Pengfei2
(1 Department of Building Engineering, College of Civil Engineering, Tongji University, Shanghai 200092, China; 2 China Academy of Building Research, Beijing 100013, China)
Abstract: Overlapping column transfer structures with encased structural steel can transfer the forces in the situation when columns are discontinuous at floor levels with limited dimensions. The structural performance of this type of structure was studied experimentally and numerically. Results show that the ultimate bearing capacity of transfer blocks improves with the increase of the steel ratio and increases as high as 20%~40% when the overlapping ratios are no more than 0.52. For a given steel ratio, the ultimate bearing capacitiy of transfer blocks improves with the increase of cross-section areas of horizontal components of the structural steel, and with the decrease of overlapping ratios.
Keywords: overlapping column transfer structure; transfer block; structural steel; experimental study; numerical simulation
作者簡(jiǎn)介:林峰,博士,副教授,Email: lin_feng@#edu.cn。
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