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(1 東華理工大學(xué)建筑工程學(xué)院， 南昌 330013； 2 廣島大學(xué)工學(xué)研究科， 廣島 739-8527）

［摘要］針對(duì)槽形鋼折板補(bǔ)強(qiáng)H型鋼梁-H型鋼柱的偏心節(jié)點(diǎn)，研究了節(jié)點(diǎn)局部屈服荷載承載力的力學(xué)行為。通過建立5種可能形成的塑性屈服破壞模型，利用屈服線理論，推導(dǎo)出H型鋼梁-H型鋼柱偏心節(jié)點(diǎn)的局部屈服荷載承載力計(jì)算公式。取包含梁受拉翼緣在內(nèi)的節(jié)點(diǎn)構(gòu)件（1/4模型）作為試件，進(jìn)行了6組拉伸加載試驗(yàn)，驗(yàn)證偏心節(jié)點(diǎn)的彈塑性響應(yīng)。通過對(duì)應(yīng)變分布和翼緣平面外殘余變形響應(yīng)的分析來驗(yàn)證塑性屈服破壞模型的準(zhǔn)確性。

［關(guān)鍵詞］梁柱偏心節(jié)點(diǎn)； 槽形鋼折板； 力學(xué)行為； 屈服線理論

中圖分類號(hào)：TU391文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2017)02-0016-07

Mechanical behavior research on local yield strength of eccentric H-beam to H-column joints

Gao Jinhe1, Huang Weiling1,  Chang Yi1,  Chen Shijun1, Zhang Wangjie1, Xu Qian1, Tagawa Hiroshi2

（1 School of Civil and Architecture Engineering, East China University of Technology, Nanchang 330013, China；2 Graduate School of Engineering, Hiroshima University, Higashi-Hiroshima City 739-8527, Japan）

Abstract:For eccentric H-beam to H-column joints strengthened by C-shaped steel plate, the local yield strength was researched. By applying the yield line theory,  five different types of plastic yield failure model were build to deduce local yield strength formulas of H\|beam to H\|column joints . Six loading tests were performed for the local joint models, which include tensile flange (1/4 model) to examine the elastic-plastic behavior of the joints with eccentricity. The measured strain distributions and the residual flange deformations confirm the validity of the collapse mechanism.

Keywords:eccentric beam-to-column joint； C-shaped steel plate； mechanical behavior； yield line theory

*國(guó)家自然科學(xué)基金(51568001),江西省自然科學(xué)基金(20142BAB216005,20151BAB206053)。

作者簡(jiǎn)介：高金賀，博士，講師，Email:12813630@qq.com。