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（1 中國(guó)建筑標(biāo)準(zhǔn)設(shè)計(jì)研究院， 北京 100048； 2 北京工業(yè)大學(xué)， 北京 100124）

［摘要］針對(duì)石家莊站上部鋼結(jié)構(gòu)的兩個(gè)典型拱腳節(jié)點(diǎn)的拱墻面內(nèi)、面外的受力性能進(jìn)行了試驗(yàn)研究。試驗(yàn)結(jié)果表明，鋼與混凝土交界面的抗剪鍵對(duì)于組合結(jié)構(gòu)能夠可靠工作至關(guān)重要，受力鋼筋需進(jìn)行可靠的面外拉結(jié)，拱腳應(yīng)采取更可靠的構(gòu)造形式，小鋼柱與鋼拱連接件的翼緣板及小鋼柱內(nèi)隔板應(yīng)采取加強(qiáng)措施。試驗(yàn)分析為拱腳節(jié)點(diǎn)的結(jié)構(gòu)設(shè)計(jì)提供了參考。

［關(guān)鍵詞］石家莊站； 拱腳節(jié)點(diǎn)； 抗剪鍵； 面外拉結(jié)； 加強(qiáng)措施

中圖分類(lèi)號(hào)：TU317文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2016)19-0026-04

Experimental study on foot joints of large-span steel arch in Shijiazhuang Railway Station

Xiao Ming1,  Jiang Hangjun1, Xing Wanli1, Yu Yinquan1, Li Zhenbao2, Zhang Linzhen1, Peng Mingying1

(1 China Institute of Building Standard Design & Research,  Beijing 100048,  China;2 Beijing University of Technology,  Beijing 100124, China)

Abstract:Experimental tests on the in-plane and out-of-plane mechanical properties of two typical arch foot joints of upper steel structure in Shijiazhuang Railway Station were conducted. The experimental results show that the shear connector in the interface between steel and concrete is significant to  reliable work of the composite structure. It is necessary to provide reliable  out-of-plane restriction   of the rebar and adopt more reliable structural form of the arch foot joints. The flange plate connecting the small steel column with the steel arch and the internal baffles of the small steel column should be strengthened. The experimental analysis provide reference for the structural design of arch foot joints.

Keywords:Shijiazhuang Railway Station; arch foot joint; shear connector; out-of-plane restriction; strengthening measure

作者簡(jiǎn)介：肖明，碩士，高級(jí)工程師，一級(jí)注冊(cè)結(jié)構(gòu)工程師，Email：58275728@qq.com。