- 摘 要
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（1 中國建筑標準設(shè)計研究院， 北京 100048； 2 大連理工大學， 大連 116024）
［摘要］針對石家莊站上部鋼結(jié)構(gòu)鋼拱的豎向靜載、水平往復荷載的受力性能進行了試驗研究。豎向靜載試驗結(jié)果表明，鋼拱壁在應力很小的情況下即可發(fā)生局部屈曲變形，應增加鋼拱內(nèi)部的縱向加勁肋和隔板數(shù)量，增大肋板厚度和尺寸。水平往復靜載試驗結(jié)果表明，鋼拱在面外水平往復荷載作用下，表現(xiàn)出良好的整體穩(wěn)定性和耗能能力，具有較強的平面外剛度和延性。優(yōu)化鋼拱軸線曲線，可有效減小拱身彎矩，改善鋼拱受力狀態(tài)。結(jié)合試驗分析，為鋼拱的結(jié)構(gòu)設(shè)計提供了參考。
［關(guān)鍵詞］石家莊站； 鋼拱； 縱向加勁肋； 軸線曲線； 矢高； 屈曲
中圖分類號：TU318， TU393-3文獻標識碼：A文章編號：1002-848X(2016)19-0021-05
Experimental study on large-span steel arch in Shijiazhuang Railway Station
Xing Wanli1, Yu Yinquan1, Jiang Hangjun1, Li Gang2, Zhang Linzhen1, Xiao Ming1, Peng Mingying1
(1 China Institute of Building Standard Design & Research, Beijing 100048, China；2 Dalian University of Technology, Dalian 116024, China)
Abstract:Experimental tests on mechanical properties of vertical static load and horizontal reciprocating load of the upper steel arch of Shijiazhuang Railway Station were conducted. The vertical static load test results show that steel arch wall can produce local buckling deformation under a low stress, so the number of longitudinal stiffeners and diaphragms inside steel arch should be increased and the size and the thickness of the rib should be increased. The horizontal reciprocating static load test results show that the steel arch has a good overall stability and energy dissipation capacity under the action of out-of-plane horizontal reciprocating loading, and the steel arch has strong out-of-plane stiffness and ductility. The axis curve of the steel arch can be optimized to effectively reduce the bending moment of the steel arch and improve the mechanical state of the steel arch. Combined with the experimental analysis, it provides a reference for the structural design of the steel arch.
Keywords:Shijiazhuang Railway Station; steel arch; longitudinal stiffener; axis curve; rise of arch; buckling
作者簡介：邢萬里，碩士，工程師，一級注冊結(jié)構(gòu)工程師，Email:alphaperfect@qq.com。
