- 摘 要
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（1 青島理工大學(xué)土木工程學(xué)院，青島 266033; 2 青島交運集團，青島 266000）
［摘要］為研究鋼框架梁柱弱軸栓焊連接翼緣削弱型節(jié)點的力學(xué)性能，設(shè)計了3個翼緣削弱節(jié)點試件及1個普通節(jié)點試件（對比試件）。對4個試件進行低周往復(fù)荷載試驗。結(jié)果表明，4個試件的破壞形態(tài)相似；焊縫通過孔的大小和加工對試件破壞形態(tài)及塑性鉸的出現(xiàn)有重要影響，由于焊縫通過孔的影響，削弱試件沒有實現(xiàn)塑性鉸外移。為有效實現(xiàn)塑性鉸外移，建議將焊縫通過孔設(shè)置在削弱位置外側(cè)，或者不設(shè)焊縫通過孔。
［關(guān)鍵詞］翼緣削弱型節(jié)點; 低周往復(fù)荷載試驗; 力學(xué)性能
中圖分類號：TU391 文獻標(biāo)識碼：A 文章編號：1002-848X(2014)17-0030-04
Experimental study on the failure mode of reduced beam section connections of the bolted-welded connection of steel frame beam-column about minor axis
Yu Yousheng1, Wang Jian1, Huang Weiping2, Wan Yan1
(1 School of Civil Engineering, Qingdao Technological University, Qingdao 266033, China; 2 Qingdao Jiaoyun Group, Qingdao 266000, China)
Abstract:In order to study the mechanical property of the reduced beam section（RBS）connections of the bolted-welded connection of steel frame about minor axis, three RBS connection specimens and a common connection specimen for comparison were designed. The low cyclic loading experiments were applied for all specimens. The results show that the failure mode of four specimens is similar; the size and processing of weld access hole have important influences on the failure mode of specimens and the emergence of the plastic hinge. The RBS specimens can not realize the shift-away of plastic hinge because they are influenced by the weld access hole. In order to achieve it, the weld access hole should be set on the lateral side of reduced section or be canceled.
Keywords:reduced beam section connection; low cyclic loading experiment; mechanical property
*國家自然科學(xué)基金（51278259），山東省優(yōu)秀中青年科學(xué)家獎勵基金（BS2009SF004）。
作者簡介：郁有升，博士，副教授，Email:yuyousheng@126.com。
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