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(1 同濟(jì)大學(xué)土木工程防災(zāi)國家重點(diǎn)實(shí)驗(yàn)室，上海 200092； 2 鄭州大學(xué)土木工程學(xué)院，鄭州 450001)
［摘要］通過分析波紋腹板H型鋼梁的彈性受力特點(diǎn)及剪切變形與彎曲變形的比例關(guān)系，提出對(duì)于此類型鋼梁在計(jì)算變形時(shí)必須考慮剪切的影響，并通過試驗(yàn)和有限元模擬驗(yàn)證了上述結(jié)論。隨后對(duì)各個(gè)構(gòu)件的荷載位移曲線分析得到了構(gòu)件的延性系數(shù)，證明若設(shè)計(jì)合理，構(gòu)件將具有較好的剪切強(qiáng)度和剪切延性，但是當(dāng)構(gòu)件為彎曲破壞控制時(shí)，構(gòu)件延性一般。根據(jù)上述結(jié)論，提出了若干設(shè)計(jì)建議。
［關(guān)鍵詞］波紋腹板H型鋼；剛度；延性系數(shù)；剪切
Deformation performance of girders with corrugated webs
Zhang Zhe1,2,Li Guoqiang1,Sun Feifei 1(1 State Key Laboratory of Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092, China；2 School of Civil Engineering, Zhengzhou University, Zhengzhou 450001, China)
Abstract:By analyzing the loading characteristic and the proportion relation between shear deflection and bending deflection of girders with corrugated webs under elastic range, it is proposed that the shearing deformation must be taken into account, which is validated by the results of tests and finite element method. Then the ductility factors are got from  load-deformation curves of tests, which show the members can possess outstanding shearing strength and ductility, provided the designs are reasonable. But, if the member strength is controlled by bending, the ductility will be general. Based upon the above conclusions, some design proposals are put forward.
Keywords:girder with corrugated webs; stiffness; ductility factor; shearing
*國家科技支撐計(jì)劃資助項(xiàng)目(2006BAJ01B02)。
作者簡(jiǎn)介：張哲，博士研究生，講師，Email：zzhe@zzu.edu.cn。
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